Novel finned heat exchanger
By adopting a combination structure of fixed sleeve, limiting sleeve and mounting block on the heat exchanger, modular installation of finned heat exchangers is realized, which solves the production inconvenience and fire risk caused by on-site welding, and improves installation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DITAN AIR-CONDITIONING EQUIP CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-04-21
AI Technical Summary
The fin structure of existing heat exchangers requires on-site welding, which causes production inconvenience and poses a fire risk.
The heat sink body is fixed to the outer wall of the heat exchange tube by means of a combination structure of a fixing sleeve, a limiting sleeve and a mounting block, avoiding welding and realizing modular production.
It enables easy installation and disassembly of the heat exchanger, improves production efficiency, reduces fire risk, and does not affect heat dissipation.
Smart Images

Figure CN224151503U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, specifically a novel finned heat exchanger. Background Technology
[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive and negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become mainstream. In the processing of lithium-ion batteries, a coating machine is used to spray coatings onto the lithium-ion battery substrate. The high-temperature gas discharged from the traditional coating machine uses a finned heat exchanger to recover the waste heat of the high-temperature gas. The finned heat exchanger enhances heat transfer by adding fins to a regular base tube. Both the base tube and the fins are mainly made of thermally conductive materials to facilitate heat exchange.
[0003] The fins of existing heat exchangers are usually welded directly to the outer wall of the heat exchange tubes. However, such a structure is not convenient for modular production, usually requires on-site welding construction, which takes a long time and is prone to fire. Utility Model Content
[0004] The purpose of this invention is to provide a novel finned heat exchanger to solve the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel finned heat exchanger, comprising: a fixed sleeve fixed on the outer wall of one end of a heat exchange tube, a limiting sleeve slidably sleeved on the other end of the heat exchange tube, a plurality of mounting blocks evenly installed between the fixed sleeve and the limiting sleeve, and a fastening nut threadedly connected to the other end of the heat exchange tube, the fastening nut being located on the side of the limiting sleeve away from the fixed sleeve.
[0006] The two connected mounting blocks are slidably connected with heat dissipation fins. One end of the heat dissipation fin is in contact with the outer wall of the heat exchange tube. The width of the heat dissipation fin gradually narrows away from the heat exchange tube. Several heat dissipation grooves are evenly opened on the outer wall of the heat dissipation fin.
[0007] Preferably, the fixed sleeve and the limiting sleeve are provided with a plurality of insertion slots at their respective ends, and each mounting block is fixedly installed with insertion blocks at both the front and rear ends.
[0008] Preferably, the plug-in blocks at both ends of the mounting block are inserted into the plug-in slots inside the fixing sleeve and the limiting sleeve, respectively.
[0009] Preferably, the outer wall of the other end of the heat exchange tube is provided with an external thread, and the inner wall of the fastening nut is threadedly connected to the inner wall of the external thread.
[0010] Preferably, each mounting block has connecting grooves at both ends, and connecting plates are fixedly installed on both the left and right sides of the lower end of each heat dissipation fin body, with the connecting plates inserted into the connecting grooves.
[0011] Preferably, the heat dissipation grooves at the left and right ends of the heat dissipation fin body are staggered.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By inserting the plug at one end of the mounting block into the plug groove at one end of the fixing sleeve, several mounting blocks are sequentially installed on the outer end of the heat exchange tube. Then, the heat dissipation fin body is slidably inserted between two adjacent mounting blocks. Next, the limiting sleeve is slidably fitted onto the outer wall of the other end of the heat exchange tube, and the plug groove on the limiting sleeve is fitted into the plug at the other end of the mounting block. Finally, the fastening nut is screwed onto the outer wall of the heat exchange tube and abuts against the limiting sleeve, thereby fixing the mounting block and the heat dissipation fin body to the outer wall of the heat exchange tube. The installation is simple and does not require welding, and it can be produced in a modular manner. Attached Figure Description
[0014] Figure 1 This is a right-side view of the overall structure of this utility model;
[0015] Figure 2 This is a left-side view of the overall structure of this utility model;
[0016] Figure 3 This is an exploded view of the overall structure of this utility model;
[0017] Figure 4 This is a schematic diagram showing the connection between the mounting block and the heat dissipation fin body of this utility model.
[0018] In the diagram: 1. Heat exchange tube; 2. Fixing sleeve; 3. Limiting sleeve; 4. Insertion groove; 5. External thread; 6. Fastening nut; 7. Mounting block; 8. Insertion block; 9. Connecting groove; 10. Heat dissipation fin body; 11. Connecting plate; 12. Heat dissipation groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Please see Figures 1 to 4This utility model provides a technical solution: a novel finned heat exchanger, comprising: a fixing sleeve 2 fixed on the outer wall of one end of a heat exchange tube 1, a limiting sleeve 3 slidably sleeved at the other end of the heat exchange tube 1, a plurality of insertion slots 4 being provided at the ends of the fixing sleeve 2 and the limiting sleeve 3 that are close to each other, a plurality of mounting blocks 7 being evenly installed between the fixing sleeve 2 and the limiting sleeve 3, and insertion blocks 8 being fixedly installed at both ends of each mounting block 7. When the mounting block 7 is located between the fixing sleeve 2 and the limiting sleeve 3, the insertion blocks 8 at both ends of the mounting block 7 are respectively inserted into the insertion slots 4 in the fixing sleeve 2 and the limiting sleeve 3, thereby evenly fixing the plurality of mounting blocks 7, with the distance between two adjacent mounting blocks 7 being the same, and the inner side of the mounting block 7 being attached to the outer end of the heat exchange tube 1.
[0021] The other end of the heat exchange tube 1 is threaded with a fastening nut 6. The outer wall of the other end of the heat exchange tube 1 is provided with an external thread 5. The inner wall of the fastening nut 6 is threaded with the inner wall of the external thread 5. The fastening nut 6 is located on the side of the limiting sleeve 3 away from the fixing sleeve 2 and abuts against the outer wall of the limiting sleeve 3, thereby fixing the limiting sleeve 3. By unscrewing the fastening nut 6 from the outer end of the heat exchange tube 1, the limiting sleeve 3 can be slid off the heat exchange tube 1, which facilitates the disassembly and assembly of the mounting block 7 and the heat dissipation fin body 10.
[0022] A heat dissipation fin body 10 is slidably inserted between the two connected mounting blocks 7. One end of the heat dissipation fin body 10 is in contact with the outer wall of the heat exchange tube 1. The heat exchange tube 1 transfers heat to the heat dissipation fin body 1 and the mounting block 7, increasing the contact area between the heat dissipation fin body 10 and the air, thereby improving the heat dissipation efficiency. The width of the heat dissipation fin body 10 gradually narrows away from the heat exchange tube 1. As the heat transfer weakens, the width of the heat dissipation fin body 10 gradually narrows, saving materials without affecting the heat dissipation effect.
[0023] A number of heat dissipation grooves 12 are evenly distributed on the outer wall of the heat dissipation fin body 10. The heat dissipation grooves 12 at the left and right ends of the heat dissipation fin body 10 are staggered. The heat dissipation grooves 12 further increase the contact area between the heat dissipation fin body 10 and the air, and further increase the heat dissipation effect of the heat dissipation fin body 10.
[0024] Each mounting block 7 has a connecting groove 9 at both ends. Each heat dissipation fin body 10 has a connecting plate 11 fixedly installed on both the lower left and right sides. The connecting plate 11 is inserted into the connecting groove 9 to fix the heat dissipation fin body 10 and facilitate the disassembly and assembly of the heat dissipation fin body 10.
[0025] When this device is in operation, the insertion block 8 at one end of the mounting block 7 is inserted into the insertion groove 4 at one end of the fixing sleeve 2. Several mounting blocks 7 are then installed on the outer end of the heat exchange tube 1 in sequence. Then, the heat dissipation fin body 10 is slidably inserted between two adjacent mounting blocks 7. Next, the limiting sleeve 3 is slidably fitted onto the outer wall of the other end of the heat exchange tube 1, and the insertion groove 4 on the limiting sleeve 3 is fitted into the insertion block 8 at the other end of the mounting block 7. Finally, the fastening nut 6 is screwed onto the outer wall of the heat exchange tube 1 and abuts against the limiting sleeve 3, thereby fixing the mounting block 7 and the heat dissipation fin body 10 onto the outer wall of the heat exchange tube 1. The installation is simple and does not require welding.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel finned heat exchanger characterized in that: include: A fixing sleeve (2) is fixed on the outer wall of one end of the heat exchange tube (1), and a limiting sleeve (3) is slidably sleeved on the other end of the heat exchange tube (1). Several mounting blocks (7) are evenly installed between the fixing sleeve (2) and the limiting sleeve (3). A fastening nut (6) is threaded to the other end of the heat exchange tube (1). The fastening nut (6) is located on the side of the limiting sleeve (3) away from the fixing sleeve (2). A heat dissipation fin body (10) is slidably inserted between the two connected mounting blocks (7). One end of the heat dissipation fin body (10) is in contact with the outer wall of the heat exchange tube (1). The width of the heat dissipation fin body (10) gradually narrows away from the heat exchange tube (1). Several heat dissipation grooves (12) are evenly opened on the outer wall of the heat dissipation fin body (10).
2. A novel finned heat exchanger as claimed in claim 1, wherein: The fixed sleeve (2) and the limiting sleeve (3) are provided with several insertion slots (4) at their respective ends, and each mounting block (7) is fixedly installed with insertion blocks (8) at both the front and rear ends.
3. A novel finned heat exchanger as claimed in claim 1, wherein: The insertion blocks (8) at the front and rear ends of the mounting block (7) are respectively inserted into the insertion slots (4) in the fixing sleeve (2) and the limiting sleeve (3).
4. A novel finned heat exchanger as claimed in claim 1, wherein: The other end of the heat exchange tube (1) has an external thread (5) on its outer wall, and the inner wall of the fastening nut (6) is threadedly connected to the inner wall of the external thread (5).
5. A novel finned heat exchanger as claimed in claim 1, wherein: Each mounting block (7) has a connecting groove (9) at both ends, and a connecting plate (11) is fixedly installed on the lower left and right sides of each heat dissipation fin body (10). The connecting plate (11) is inserted into the connecting groove (9).
6. A novel finned heat exchanger as claimed in claim 1, wherein: The heat dissipation grooves (12) at both ends of the heat dissipation fin body (10) are staggered.