Aluminum alloy composite plate for plate-fin heat exchanger

By introducing a connection mechanism and auxiliary mechanism into the plate-fin heat exchanger, the problem of low connection efficiency between the composite plate and the contact plate is solved, and rapid installation and stable connection are achieved.

CN224246871UActive Publication Date: 2026-05-15WUXI XINBAISHI PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI XINBAISHI PRECISION MASCH CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing technology, the composite plate and contact plate of the plate-fin heat exchanger are connected by screws, which is inefficient, requires tools to tighten the screws, is cumbersome, cannot be completed by a single person, requires multiple people to cooperate, and is slow to install.

Method used

The connection mechanism, consisting of a locking block, connecting rod, rotating rod, limiting ring, and positioning rod, simplifies the installation process. The auxiliary mechanism adjusts the pipe angle through an adjusting plate and telescopic rod, improving connection stability.

Benefits of technology

It improves the connection speed between the composite plate and the contact plate, simplifies the installation process, saves manpower, and enhances the stability of the pipe connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of aluminum alloy composite plates, in particular to an aluminum alloy composite plate for a plate-fin heat exchanger. Comprising a contact plate, a composite plate body is installed on one side of the contact plate, a water inlet pipe fixedly communicates with one side of the composite plate body, a water outlet pipe is installed on the side, close to the water inlet pipe, of the composite plate body, a connecting mechanism is arranged on the side, close to the composite plate body, of the contact plate, and the connecting mechanism comprises four clamping blocks; the four clamping blocks are fixedly connected with the side, close to the composite board body, of the contact board, and one side of each of the two clamping blocks is fixedly connected with a connecting rod. The aluminum alloy composite plate for the plate-fin heat exchanger has the advantages that when the composite plate is installed, the installation task can be completed through the connecting mechanism, the convenience of the composite plate can be improved through the connecting mechanism, the installation steps are simplified, manpower occupation in the installation process is reduced, manpower consumption is reduced, and the production efficiency is improved. Therefore, the speed of installing the composite board can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy composite plate technology, and in particular to an aluminum alloy composite plate for plate-fin heat exchangers. Background Technology

[0002] Plate-fin heat exchangers consist of thin metal plates and fins, increasing heat exchange efficiency by increasing surface area. Aluminum alloy composite plates are used to improve the performance of heat exchangers. They have excellent thermal conductivity, are lightweight and corrosion resistant, and can withstand high temperature and high pressure environments, thus improving heat exchange efficiency and durability.

[0003] Utility model CN213811858U discloses a nickel-steel composite plate shell-and-tube heat exchanger. The key technical features are as follows: It includes a shell; an inner tube sheet is arranged inside the shell; an outer tube sheet is arranged on one side of the shell, and an inner end cap is arranged on the other side; an inner cavity is provided between the outer tube sheet and the inner tube sheet; an outer end cap one and an outer end cap two are respectively arranged on the outer tube sheet and the inner end cap; a hot fluid inlet pipe and a hot fluid outlet pipe are arranged inside the outer tube sheet; a heat exchange tube one and a heat exchange tube two are arranged on the inner tube sheet; both heat exchange tube one and heat exchange tube two are connected to the inner cavity; both heat exchange tube one and heat exchange tube two include an outer tube and an inner tube; a PLC controller is installed on the shell; a cold fluid inlet pipe is also connected to the top of the shell; and a cold fluid outlet pipe is connected to the bottom of the shell. This utility model proposes a nickel-steel composite plate shell-and-tube heat exchanger with high heat exchange efficiency and easy drainage, overcoming the technical problems of large heat transfer loss and easy accumulation of dirt in traditional shell-and-tube heat exchangers.

[0004] Regarding the above-mentioned content, the following technical defects exist: Plate-fin heat exchangers are commonly used heat exchange devices, widely applied in air conditioning, refrigeration, automotive radiators, and other fields. Composite plates in plate-fin heat exchangers can improve the performance and durability of the heat exchanger. Aluminum alloys have excellent thermal conductivity, lightweight properties, and good corrosion resistance. Typically, when connecting the composite plate to the contact plate of the heat exchanger, it is done using screws. After connection, the cooling water pipes are then connected to the inlet and outlet pipes, allowing the heat exchanger to dissipate heat from the equipment. However, installing the composite plate on the contact plate using screws is inefficient. Installation also requires tools to tighten the screws, making the installation process cumbersome. Moreover, the installation task cannot be completed by a single person; multiple workers are needed to support the composite plate and align the screws with the mounting holes on the contact plate to complete the installation task, resulting in a slow installation speed.

[0005] Therefore, it is necessary to provide a new type of aluminum alloy composite plate for plate-fin heat exchangers to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies. Typically, when connecting composite plates to the contact plates of heat exchangers, screws are used for connection. After connection, cooling water pipes are then connected to the inlet and outlet pipes to allow the heat exchanger to dissipate heat from the equipment. However, installing the composite plate onto the contact plate using screws is inefficient, requires tools to tighten the screws, and is cumbersome. Furthermore, it cannot be completed by a single person; multiple workers are needed to support the composite plate and align the screws with the mounting holes on the contact plate to complete the installation, resulting in slow installation speed.

[0007] To solve the above-mentioned technical problems, this utility model provides an aluminum alloy composite plate for a plate-fin heat exchanger, comprising: a contact plate, a composite plate body installed on one side of the contact plate, a water inlet pipe fixedly connected to one side of the composite plate body, a water outlet pipe installed on the side of the composite plate body near the water inlet pipe, a connecting mechanism provided on the side of the contact plate near the composite plate body, the connecting mechanism comprising four locking blocks, all four locking blocks being fixedly connected to the side of the contact plate near the composite plate body, wherein two of the locking blocks are fixedly connected to one side of each other with connecting rods, and the other two locking blocks are fixedly connected to the sides away from each other with connecting rods, the inner wall of the connecting rods being rotatably penetrated by a common rotating rod, both ends of the arc surface of the rotating rod being fixedly connected to adjusting rods, one end of the arc surface of the two adjusting rods being fixedly connected to a common limiting ring, the inner wall of the limiting ring being threaded through with a positioning rod, one end of the arc surface of the positioning rod being threaded through with the inner wall of the connecting rod, one end of the positioning rod near the arc surface of the connecting rod being threadedly connected to the inner wall of the composite plate body, and the inner wall of the positioning rod being slidably penetrated by an auxiliary rod.

[0008] The effects achieved by the above components are as follows: Plate-fin heat exchangers are commonly used heat exchange devices, widely applied in air conditioning, refrigeration, automotive radiators, and other fields. The composite plate body in a plate-fin heat exchanger can improve the performance and durability of the heat exchanger. Aluminum alloy has excellent thermal conductivity, lightweight, and good corrosion resistance. Usually, when connecting the composite plate body to the contact plate of the heat exchanger, it is connected by screws. After the connection is completed, the cooling water pipes are connected to the inlet and outlet pipes, allowing the heat exchanger to dissipate heat from the equipment. However, installing the composite plate body on the contact plate by screws is inefficient, requires installation tools to tighten the screws, and the installation steps are cumbersome. It is impossible for a single person to complete the installation task, requiring multiple workers to support the composite plate body and align the screws with the mounting holes on the contact plate to complete the installation task. The installation speed is slow. In this case, a connecting mechanism can be used to drive the screws to install the composite plate body on the contact plate. The connecting mechanism can improve the speed of connecting the composite plate body to the contact plate, shorten the installation steps, improve installation efficiency, and save manpower.

[0009] Preferably, both ends of the arc surface of the rotating rod are fitted with coil springs, and the two ends of the coil springs are fixedly connected to the rotating rod and the adjusting ring, respectively.

[0010] The effect achieved by the above components is that the coil spring can quickly drive the limiting ring away from the composite plate body.

[0011] Preferably, a limit rod is fixedly connected to the side of each of the two blocks that is far apart from each other.

[0012] The effect achieved by the above components is that the limiting rod can limit the movement angle of the adjusting rod, thereby improving the convenience of adjusting the angle of the adjusting rod.

[0013] Preferably, the other two card blocks are fixedly connected to the same connecting plate on the side close to each other, and the connecting plate is fixedly connected to a contact pad on the side close to the composite board body.

[0014] The effect achieved by the above components is that the contact pads installed on the connecting plate can improve the tightness of the composite plate body when it contacts the card block, and can temporarily restrict the composite plate body within the card block through the contact pads.

[0015] Preferably, both the inlet pipe and the outlet pipe have an auxiliary mechanism at the arc-shaped end away from the composite board body. The auxiliary mechanism includes an adjusting plate, which is rotatably connected to one arc-shaped end of the inlet pipe. A steering pipe is fixedly connected to the side of the adjusting plate away from the inlet pipe. Three limiting holes are opened on the side of the adjusting plate, and the three limiting holes are evenly distributed on the adjusting plate. A telescopic rod slides through the inner wall of one of the limiting holes. One arc-shaped end of the telescopic rod is fixedly connected to one side of the composite board body, and an adjusting block is fixedly connected to the other arc-shaped end of the telescopic rod. A spring is sleeved on the other arc-shaped end of the telescopic rod, and the two ends of the spring are fixedly connected to the adjusting block and the telescopic rod, respectively.

[0016] The effect achieved by the above components is that when connecting the inlet pipe and outlet pipe to the cooling water pipeline, the connection direction of the inlet pipe and outlet pipe can be adjusted by the auxiliary device. Thus, through the adjustment of the auxiliary mechanism, the connection direction of the inlet pipe and outlet pipe can be adapted to the connection position of the cooling water pipeline on site, thereby improving the stability of the connection between the inlet pipe and outlet pipe and the cooling water pipeline.

[0017] Preferably, a protrusion is fixedly connected to one end of the telescopic rod away from the arc surface of the composite board body, and the protrusion is funnel-shaped.

[0018] The effect achieved by the above components is that the protrusion can increase the speed at which the telescopic rod connects to the inner wall of the limiting hole.

[0019] Preferably, the adjusting block is a steel block.

[0020] The effect achieved by the above components is that the surface of the steel adjustment block is relatively hard and it is less likely to deform even after long-term use.

[0021] Compared with related technologies, the aluminum alloy composite plate for plate-fin heat exchangers provided by this utility model has the following advantages:

[0022] This utility model provides an aluminum alloy composite plate for plate-fin heat exchangers. By setting a connecting mechanism, the installation task can be completed through the connecting mechanism. The connecting mechanism can improve the convenience of the composite plate, simplify the installation steps, reduce the manual occupation during the installation process, reduce manpower consumption, and thus increase the speed of composite plate installation.

[0023] By setting up an auxiliary mechanism, when connecting the cooling water pipe to the inlet and outlet pipes, the angle of the inlet and outlet pipes can be adjusted through the auxiliary mechanism. This adjustment allows the inlet and outlet pipes to change angles according to the position of the cooling water pipes on site, thereby improving the connection stability. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of an aluminum alloy composite plate for a plate-fin heat exchanger provided by this utility model;

[0025] Figure 2 for Figure 1 The diagram shows the structure of the connecting mechanism.

[0026] Figure 3 for Figure 1 A partially enlarged schematic diagram of the connecting mechanism shown;

[0027] Figure 4 for Figure 1 A partially enlarged schematic diagram of the connecting mechanism shown;

[0028] Figure 5 for Figure 1 The diagram shows the structure of the auxiliary mechanism.

[0029] The following are the labeling elements in the diagram: 1. Contact plate; 2. Connecting mechanism; 201. Locking block; 202. Connecting rod; 203. Adjusting ring; 204. Rotating rod; 205. Adjusting rod; 206. Limiting ring; 207. Positioning rod; 208. Auxiliary rod; 209. Coil spring; 210. Limiting rod; 211. Connecting plate; 212. Contact pad; 3. Auxiliary mechanism; 31. Steering tube; 32. Adjusting disc; 33. Limiting hole; 34. Telescopic rod; 35. Spring; 36. Adjusting block; 37. Protrusion; 4. Composite plate body; 5. Inlet pipe; 6. Outlet pipe. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 5 The present invention provides an aluminum alloy composite plate for a plate-fin heat exchanger, comprising: a contact plate 1, a composite plate body 4 installed on one side of the contact plate 1, an inlet pipe 5 fixedly connected to one side of the composite plate body 4, an outlet pipe 6 installed on the side of the composite plate body 4 near the inlet pipe 5, a connecting mechanism 2 provided on the side of the contact plate 1 near the composite plate body 4, and auxiliary mechanisms 3 provided at the arc-shaped ends of the inlet pipe 5 and the outlet pipe 6 away from the composite plate body 4.

[0033] In the embodiments of this utility model, please refer to Figures 2 to 4The connecting mechanism 2 includes four locking blocks 201, all of which are fixedly connected to the side of the contact plate 1 near the composite plate body 4. Two locking blocks 201 have connecting rods 202 fixedly connected to one side, while the other two locking blocks 201 have connecting rods 202 fixedly connected to the sides away from each other. A single rotating rod 204 rotatably passes through the inner wall of each connecting rod 202. Adjusting rods 205 are fixedly connected to both ends of the arc surface of the rotating rod 204. A single limiting ring 206 is fixedly connected to one end of the arc surface of each of the two adjusting rods 205. A positioning rod 207 is threaded through the inner wall of the limiting ring 206. One end of the arc surface of the positioning rod 207 is threaded through the inner wall of the connecting rod 202. One end of the arc surface near the connecting rod 202 is threaded to the inner wall of the composite plate body 4. The inner wall of the positioning rod 207 has an auxiliary rod 208 slidingly passing through it. Plate-fin heat exchangers are commonly used heat exchange devices and are widely used in air conditioning, refrigeration, automotive radiators, and other fields. The composite plate body 4 can improve the performance and durability of the plate-fin heat exchanger. Aluminum alloy has excellent thermal conductivity, lightweight, and good corrosion resistance. Usually, when connecting the composite plate body 4 to the contact plate 1 of the heat exchanger, it is connected by a screw. After the connection is completed, the cooling water pipe is connected to the inlet pipe 5 and the outlet pipe 6, so that the heat exchanger can dissipate heat from the equipment. However, the composite plate body 4 is connected by a screw. The installation of the composite plate body 4 onto the contact plate 1 is slow, requiring tools to tighten the screws. The installation process is cumbersome and cannot be completed by a single person; multiple workers are needed to support the composite plate body 4 and align the screw with the mounting holes on the contact plate 1. This slow installation speed can be mitigated by using the connecting mechanism 2 to drive the screw and install the composite plate body 4 onto the contact plate 1. The connecting mechanism 2 increases the speed of connection between the composite plate body 4 and the contact plate 1, shortens the installation steps, improves efficiency, and saves manpower. Both ends of the arc-shaped surface of the rotating rod 204 are fitted with coil springs 209, which are fixedly connected to the rotating rod 204 and the adjusting ring 203, respectively. The coil spring 209 can quickly drive the limiting ring 206 to move away from the composite plate body 4. The two locking blocks 201 are fixedly connected to the side away from each other, and the limiting rod 210 can limit the movement angle of the adjusting rod 205, improving the convenience of adjusting the angle of the adjusting rod 205. The two locking blocks 201 are fixedly connected to the same connecting plate 211 on the side close to each other. The side of the connecting plate 211 close to the composite plate body 4 is fixedly connected to the contact pad 212. The contact pad 212 installed on the connecting plate 211 can improve the tightness of the contact between the composite plate body 4 and the locking block 201, and can temporarily restrict the composite plate body 4 within the locking block 201 through the contact pad 212.

[0034] In the embodiments of this utility model, please refer to Figure 5The auxiliary mechanism 3 includes an adjusting disc 32, which is rotatably connected to one end of the arc surface of the water inlet pipe 5. A steering pipe 31 is fixedly connected to the side of the adjusting disc 32 away from the water inlet pipe 5. Three limiting holes 33 are opened on the side of the adjusting disc 32, and the three limiting holes 33 are evenly distributed on the adjusting disc 32. A telescopic rod 34 slides through the inner wall of one of the limiting holes 33. One end of the arc surface of the telescopic rod 34 is fixedly connected to one side of the composite board body 4. An adjusting block 36 is fixedly connected to the other end of the arc surface of the telescopic rod 34. A spring 35 is sleeved on the other end of the arc surface of the telescopic rod 34. The two ends of the spring 35 are fixedly connected to the adjusting block 36 and the telescopic rod 34, respectively. When the inlet pipe 5 and outlet pipe 6 are connected to the cooling water pipe, the angle of the connection direction of the inlet pipe 5 and outlet pipe 6 can be adjusted by the auxiliary device. Thus, by adjusting the auxiliary mechanism 3, the connection direction of the inlet pipe 5 and outlet pipe 6 can be adapted to the connection position of the cooling water pipe on site, thereby improving the stability of the connection between the inlet pipe 5 and outlet pipe 6 and the cooling water pipe. A protrusion 37 is fixedly connected to the arc surface of the telescopic rod 34 away from the composite plate body 4. The protrusion 37 is funnel-shaped. The protrusion 37 can improve the speed of the connection between the telescopic rod 34 and the inner wall of the limiting hole 33. The adjusting block 36 is a steel block. The surface of the steel adjusting block 36 is relatively hard and it is difficult to deform after long-term use.

[0035] The working principle of the aluminum alloy composite plate for plate-fin heat exchangers provided by this utility model is as follows: The two ends of the composite plate body 4 are respectively contacted with four locking blocks 201. At this time, the composite plate body 4 can be restricted to one side of the contact plate 1. Then, the adjusting rod 205 can be pulled. The movement of the adjusting rod 205 will cause it to move within the adjusting ring 203 via the rotating rod 204, thereby driving the movement of the limiting ring 206. The limiting ring 206 will then be positioned on one side of the connecting rod 202. At this time, the auxiliary rod 208 can slide up and down within the positioning rod 207 to rotate the positioning rod 207. Thus, the positioning rod 207 can be connected to the inner wall of the connecting block and the inner wall of the composite plate body 4. This fixes the composite plate body 4 within the four locking blocks 201, thereby fixing the composite plate body 4 to one side of the contact plate 1.

[0036] Pressing the telescopic rod 34 by adjusting the block 36 will compress the spring 35, thus releasing the limiting effect of the telescopic rod 34 on the adjusting disc 32. The adjusting disc 32 can then be rotated via the swivel tube 31. After adjusting the water pipe to the appropriate angle, align the limiting hole 33 with the lower end of the telescopic rod 34, and then release the adjusting block 36. The spring 35 will then reset, causing the telescopic rod 34 to connect with the inner wall of the limiting hole 33. At this point, the adjusted swivel tube 31 can be limited, and it can be connected to the cooling water pipe via the swivel tube 31.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An aluminum alloy composite plate for a plate-fin heat exchanger, characterized in that, include: A contact plate (1) is provided, on one side of which a composite plate body (4) is installed. A water inlet pipe (5) is fixedly connected to one side of the composite plate body (4). A water outlet pipe (6) is installed on the side of the composite plate body (4) near the water inlet pipe (5). A connecting mechanism (2) is provided on the side of the contact plate (1) near the composite plate body (4). The connecting mechanism (2) includes four locking blocks (201). All four locking blocks (201) are fixedly connected to the side of the contact plate (1) near the composite plate body (4). Two of the locking blocks (201) are fixedly connected to one side of each other, and the other two locking blocks (201) are fixedly connected to the side away from each other. The connecting rod (202) has a rotating rod (204) that rotatably passes through its inner wall. Both ends of the arc surface of the rotating rod (204) are fixedly connected to adjusting rods (205). One end of the arc surface of the two adjusting rods (205) is fixedly connected to the same limiting ring (206). The inner wall of the limiting ring (206) is threaded through a positioning rod (207). One end of the arc surface of the positioning rod (207) is threaded through the inner wall of the connecting rod (202). The end of the positioning rod (207) near the arc surface of the connecting rod (202) is threaded through the inner wall of the composite board body (4). The inner wall of the positioning rod (207) is slidably connected to an auxiliary rod (208).

2. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 1, characterized in that, Both ends of the arc surface of the rotating rod (204) are fitted with coil springs (209), and the two ends of the coil springs (209) are fixedly connected to the rotating rod (204) and the adjusting ring (203) respectively.

3. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 1, characterized in that, Limiting rods (210) are fixedly connected to the sides of the two blocks (201) that are far apart from each other.

4. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 1, characterized in that, The other two card blocks (201) are fixedly connected to the same connecting plate (211) on the side close to each other, and the connecting plate (211) is fixedly connected to a contact pad (212) on the side close to the composite plate body (4).

5. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 1, characterized in that, Both the inlet pipe (5) and the outlet pipe (6) are equipped with auxiliary mechanisms (3) at the arc-shaped ends away from the composite board body (4). The auxiliary mechanism (3) includes an adjusting plate (32), which is rotatably connected to one end of the arc-shaped end of the inlet pipe (5). A steering pipe (31) is fixedly connected to the side of the adjusting plate (32) away from the inlet pipe (5). Three limiting holes (33) are opened on the side of the adjusting plate (32), and the three limiting holes (33) are evenly distributed. The telescopic rod (34) is slidably passed through the inner wall of one of the limiting holes (33) on the adjustment plate (32). One end of the arc surface of the telescopic rod (34) is fixedly connected to one side of the composite board body (4). The other end of the arc surface of the telescopic rod (34) is fixedly connected to the adjustment block (36). The other end of the arc surface of the telescopic rod (34) is fitted with a spring (35). The two ends of the spring (35) are fixedly connected to the adjustment block (36) and the telescopic rod (34) respectively.

6. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 5, characterized in that, The telescopic rod (34) has a protrusion (37) fixedly connected to one end of its arc surface away from the composite board body (4), and the protrusion (37) is funnel-shaped.

7. The aluminum alloy composite plate for a plate-fin heat exchanger according to claim 5, characterized in that, The adjusting block (36) is a steel block.