Water chamber of flat tube radiator
By using the U-shaped structure design of the motherboard and cover plate, combined with the shaping and correction of the flange and bending parts, the manufacturing and assembly precision problems of the water chamber of the flat tube radiator were solved, improving the product qualification rate and reducing rework costs.
Patent Information
- Application Number
- CN202520318859.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing flat tube radiators suffer from insufficient manufacturing and assembly precision in the manifold water chamber, resulting in poor brazing quality, low product qualification rate, and high rework costs.
The U-shaped structure, consisting of a main board and a cover plate, uses flanges and bends to correct the inner shape, ensuring the accuracy of the connection holes for flat pipes and water pipes. The sealing plate and crimping structure also improve assembly stability.
This improved the assembly precision of the water chamber, flat tube, and water pipe, reduced residual stress, increased product qualification rate, and lowered rework costs.
Smart Images

Figure CN223965942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiator design and manufacturing technology, specifically to a flat tube radiator water chamber. Background Technology
[0002] Flat tube radiators refer to radiators that use flat tubes as the basic modular unit, then stack several flat tubes and add manifolds and water chambers at both ends to form the radiator. Currently, the manifolds and water chambers of flat tube radiators generally adopt O-type or D-type molding processes. Although the manufacturing process of O-type or D-type manifolds and water chambers is relatively simple, because the holes can only be punched from the outside, the holes that mate with the flat tubes and water pipes cannot be shaped and corrected from the inside of the tubes, making it difficult to guarantee the hole position accuracy. This easily leads to inconsistent gaps between the mating holes of the flat tubes and water pipes and the water chamber during assembly, resulting in poor brazing quality; moreover, because the flat tube assembly cannot be shaped after assembly, the flat tube assembly accuracy is poor, residual stress exists, and welding deformation is easily caused, affecting the product qualification rate.
[0003] Therefore, it is necessary to develop and design a new flat tube radiator water chamber structure to ensure the manufacturing precision of the water chamber and the assembly precision of the water chamber with the flat tube and water pipe, thereby improving the product qualification rate and reducing rework costs. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a flat tube radiator water chamber. By adopting this flat tube radiator water chamber structure, it is possible to ensure the manufacturing precision of the water chamber and the assembly precision of the water chamber with the flat tube and water pipe, thereby improving the product qualification rate and reducing rework costs.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a flat tube radiator water chamber, comprising a main board and a cover plate, wherein the cover plate is sealed and fastened to the main board to form a water chamber, and the water chamber is provided with a plurality of flat tube connection holes and at least one water pipe connection hole.
[0006] Furthermore, the flat tube connection hole is provided on the main board, and the edge of the flat tube connection hole is provided with a first flange that folds towards the inside of the water chamber; the water pipe connection hole is provided on the cover plate, and the edge of the water pipe connection hole is provided with a second flange that folds towards the inside of the water chamber.
[0007] Furthermore, both the main board and the cover plate are U-shaped plates. The open sides of the two U-shaped plates are arranged opposite each other and fastened together to form a through cavity with both ends connected. The two ends of the through cavity are sealed by corresponding sealing plates to form the water chamber.
[0008] Furthermore, the two side plates of the motherboard are respectively soldered to the inner side walls of the two side plates of the cover plate.
[0009] Furthermore, the motherboard has a first bending portion at each end along its length that bends toward the water chamber, and the cover plate has a second bending portion corresponding to the first bending portion, with the second bending portion abutting against the first bending portion.
[0010] Furthermore, the motherboard has a snap-fit hole at each end along its length, and the cover plate has a snap-fit arm at each end along its length that snaps into the corresponding snap-fit hole.
[0011] Furthermore, the cover plate has sealing plate connection holes at both ends along its length for assembling the corresponding side sealing plates.
[0012] Furthermore, a vehicle body connecting bracket is fixedly provided on the cover plate. The vehicle body connecting bracket includes a U-shaped base that is conformally configured to fit the cover plate and fastened to the cover plate, and mounting lugs fixed on the U-shaped base.
[0013] Furthermore, both the motherboard and the cover plate are stamped parts.
[0014] Furthermore, the motherboard, cover plate, and sealing plate are all made of aluminum or aluminum alloy.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] Compared to the traditional flat tube radiator water chamber structure, the flat tube radiator water chamber provided by this utility model is advantageous in ensuring the manufacturing precision of the water chamber, as well as the assembly precision of the water chamber with the flat tubes and water pipes, thereby improving the product qualification rate and reducing rework costs. Specifically: by adopting a main board and cover plate structure that are mutually connected and fixed to form the water chamber, the flat tube connection holes and water pipe connection holes can be shaped and corrected from the inside of the water chamber before the main board and cover plate are assembled, ensuring the processing precision of the flat tube connection holes and water pipe connection holes; at the same time, after each flat tube is installed with its connection hole, the assembly of each flat tube can be shaped from the inside of the water chamber, ensuring the assembly consistency of each flat tube of the radiator (e.g., a straightedge can be used to ensure the consistency of the depth of each flat tube inserted into the flat tube connection hole), which helps to reduce residual stress during assembly, thereby improving the product qualification rate and reducing rework costs; similarly, it also helps to ensure the assembly precision of the water pipes with their connection holes.
[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0018] Figure 1 This is an isometric schematic diagram of an embodiment of the present invention;
[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0020] Figure 3 This is a partial structural diagram of a motherboard according to an embodiment of the present invention;
[0021] Figure 4 This is a partial structural schematic diagram of the cover plate according to an embodiment of the present utility model;
[0022] Figure 5 This is an exploded structural diagram of an embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the overall structure of an embodiment of the present invention applied to a radiator;
[0024] Reference numerals: 1-Main board; 101-Flat tube connection hole; 101a-First flange; 102-First bend; 103-Crimping hole; 2-Cover plate; 201-Water pipe connection hole; 201a-Second flange; 202-Second bend; 203-Crimping arm; 204-Sealing plate connection hole; 3-Sealing plate; 4-Car body connection bracket; 401-U-shaped base; 402-Mounting lug; 5-Water pipe; 6-Flat tube. Detailed Implementation
[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only for illustrating the basic concept of this utility model. Unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.
[0026] Please see Figure 1-6This embodiment discloses a flat tube radiator water chamber, including a main board 1 and a cover plate 2. The cover plate 2 is sealed and fastened to the main board 1 to form a water chamber 1a. The water chamber 1a is provided with a plurality of flat tube connection holes 101 and at least one water pipe connection hole 201. Here, the sealing and fastening method of the main board 1 and the cover plate 2 is not limited, including but not limited to welding, adhesive fixing, etc. It can be understood that the flat tube connection hole 101 is used for connecting and installing the flat tubes 6 of the flat tube radiator, and the water pipe connection hole 201 is used for connecting and installing the water pipes 5 (inlet pipe or outlet pipe) of the flat tube radiator. Here, there is one water pipe connection hole 201. Of course, in other embodiments, when both the inlet pipe and the outlet pipe are connected to this water chamber, the water pipe connection hole 201 is correspondingly set to two.
[0027] The flat tube radiator water chamber structure described above helps ensure the manufacturing precision of water chamber 1a and the assembly precision of water chamber 1a with flat tubes 6 and water pipes 5, thereby improving product qualification rate and reducing rework costs. Specifically: by adopting a sealed interlocking structure for the main board 1 and cover plate 2 forming water chamber 1a, before the main board 1 and cover plate 2 are assembled, the flat tube connection hole 101 and water pipe connection hole 201 can be shaped and corrected from the inside of the water chamber to ensure the machining precision of flat tube connection hole 101 and water pipe connection hole 201; at the same time, after each flat tube 6 is installed with the flat tube connection hole 101, the assembly of each flat tube 6 can be shaped from the inside of the water chamber to ensure the assembly consistency of each flat tube 6 of the radiator (e.g., the depth of each flat tube inserted into the flat tube connection hole can be consistent by using a straightedge), which helps reduce residual stress during assembly, thereby improving product qualification rate and reducing rework costs; similarly, it also helps ensure the assembly precision of water pipe 5 with water pipe connection hole 201.
[0028] In this embodiment, the flat tube connection hole 101 is disposed on the main board 1, and the edge of the flat tube connection hole 101 is provided with a first flange portion 101a that folds inward toward the water chamber 1a; the water pipe connection hole 201 is disposed on the cover plate, and the edge of the water pipe connection hole 201 is provided with a second flange portion 201a that folds inward toward the water chamber 1a. It can be understood that both the first flange portion 101a and the second flange portion 201a can be formed by stamping. Before the main board 1 and the cover plate 2 are assembled, the first flange portion 101a and the second flange portion 201a can be shaped and corrected from inside the water chamber to ensure manufacturing accuracy. The first flange 101a increases the contact area between the flat tube connection hole 101 and the flat tube 6, thus ensuring the sealing and connection reliability after the flat tube 6 is installed. The second flange 201a increases the contact area between the water pipe connection hole 201 and the water pipe 5, further ensuring the sealing and connection reliability after the water pipe 5 is installed. Overall, this helps to further ensure the installation accuracy of the flat tube 6 and water pipe 5 with the water chamber, improving the product qualification rate. Since both the first flange 101a and the second flange 201a fold inwards towards the water chamber 1a, it helps to ensure aesthetic appearance, especially for the main board 1 and cover plate 2 of the welded structure, ensuring the aesthetic appearance of the weld seam, thus improving the product's overall appearance and increasing the product qualification rate.
[0029] In this embodiment, both the main board 1 and the cover plate 2 are U-shaped plates. The open sides of the two U-shaped plates are arranged opposite each other and fastened together to form a through cavity with both ends connected. The two ends of the through cavity are respectively sealed by corresponding sealing plates 3 to form the water chamber 1a. By adopting the U-shaped plate structure, it can be formed by stamping, ensuring processing accuracy and facilitating mass production. The water chamber structure formed by sealing both ends with sealing plates 3 is simple and helps to save manufacturing costs.
[0030] In this embodiment, the two side plates of the main board 1 are respectively welded to the inner sidewalls of the two side plates of the cover plate 2. Specifically, brazing is used to complete the welding connection. Since the main board 1 and the cover plate 2 are usually thin, this structural design ensures the stability of the connection and the sealing of the connection points by welding the two side plates of the main board 1 to the inner sidewalls of the two side plates of the cover plate 2. This further ensures the manufacturing precision of the water chamber, helps to further guarantee the production qualification rate of the water chamber, and reduces manufacturing costs.
[0031] In this embodiment, the main board 1 has first bending portions 102 at both ends along its length, bending towards the water chamber 1a. The cover plate 2 has second bending portions 202 corresponding to the first bending portions 102, with the second bending portions 202 abutting against the first bending portions 102. The first bending portions 102 at both ends of the main board 1 and the second bending portions 202 at both ends of the cover plate 2 facilitate docking and positioning of the main board 1 and cover plate 2 during assembly, ensuring consistency in mass production and ensuring the consistency of assembly of the main board 1 and cover plate 2, thus guaranteeing the assembly qualification rate and further ensuring the product qualification rate. Simultaneously, the first bending portions 102 used in this structure can be formed by stamping dies, resulting in a simple structure, reducing manufacturing costs, and facilitating mass production. The first bending portions 102 are located at both ends along the length of the main board 1, providing a reliable structure and good positioning effect.
[0032] In this embodiment, the main board 1 has clamping holes 103 at both ends along its length, and the cover plate 2 has clamping arms 203 at both ends along its length that clamp into the corresponding clamping holes 103. Specifically, the clamping holes 103 are square holes, and the clamping arms 203 are bent portions. During assembly, after the main board 1 and the cover plate 2 are aligned, the clamping arms 203 bend and clamp into the square holes. The correspondingly designed clamping holes 103 and clamping arms 203 enhance the stability of the assembly of the main board 1 and the cover plate 2. During assembly, after clamping, welding will not occur, ensuring the welding quality of subsequent welding processes, thereby further guaranteeing the production quality of the water chamber and improving the product qualification rate. The clamping holes 103 are located at both ends along the length of the main board 1, providing a reliable structure and good clamping effect.
[0033] In this embodiment, the cover plate 2 has sealing plate connection holes 204 at both ends along its length for assembling the corresponding side sealing plates 3. (See also...) Figure 2 Specifically, the sealing plate connection hole 204 is formed on the bottom plate of the groove of the cover plate 2. After the sealing plate 3 passes through the sealing plate connection hole 204, it is welded and fixed to the main plate 1 and the cover plate 2. By forming the sealing plate connection hole 204 on the cover plate 2, it is beneficial to ensure the installation accuracy and stability of the sealing plate 3, thereby further ensuring the production qualification rate of the water chamber.
[0034] In this embodiment, a vehicle body connecting bracket 4 is fixedly mounted on the cover plate 2. The vehicle body connecting bracket 4 includes a U-shaped base 401 that is conformally fitted to and fastened to the cover plate 2, and mounting ears 402 fixed on the U-shaped base 401. Specifically, two vehicle body connecting brackets 4 are provided here. The U-shaped base 401 is welded and fixed to the cover plate 2, and the mounting ears 402 are provided with connection holes. It can be understood that the vehicle body connecting bracket 4 is used for the installation of the flat tube radiator and the vehicle body structure (such as the front-end module of an automobile). In this structural design, the vehicle body connecting bracket 4 integrated on the cover plate 2 can facilitate the installation of the flat tube radiator; at the same time, the U-shaped base 401 can enhance the connection stability between the cover plate 2 and the main board 1, thereby enhancing the durability of the water chamber and improving product quality.
[0035] In this embodiment, both the main board 1 and the cover plate 2 are stamped parts. Stamped parts have a simple structure, which helps to ensure processing accuracy, thereby helping to further improve the product qualification rate and reduce rework costs.
[0036] In this embodiment, the main board 1, cover plate 2 and sealing plate 3 are all made of aluminum or aluminum alloy. Using aluminum or aluminum alloy helps to ensure the lightweight design of the product.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A flat tube radiator water chamber, characterized in that: It includes a main board (1) and a cover plate (2), the cover plate (2) is sealed and fastened to the main board (1) to form a water chamber (1a), the water chamber (1a) is provided with a plurality of flat tube connection holes (101) and at least one water pipe connection hole (201).
2. The water chamber of the flat tube radiator according to claim 1, characterized in that: The flat tube connection hole (101) is provided on the main board (1), and the edge of the flat tube connection hole (101) is provided with a first flange (101a) that folds inward toward the water chamber (1a); the water pipe connection hole (201) is provided on the cover plate, and the edge of the water pipe connection hole (201) is provided with a second flange (201a) that folds inward toward the water chamber (1a).
3. The water chamber of the flat tube radiator according to claim 1, characterized in that: Both the main board (1) and the cover plate (2) are U-shaped plates. The open sides of the two U-shaped plates are arranged opposite each other and connected and fastened to form a through cavity with both ends connected. The two ends of the through cavity are respectively sealed by corresponding sealing plates (3) to form the water chamber (1a).
4. The water chamber of the flat tube radiator according to claim 3, characterized in that: The two side plates of the main board (1) are respectively welded to the inner side walls of the two side plates of the cover plate (2).
5. The water chamber of the flat tube radiator according to claim 3, characterized in that: The main board (1) has a first bending portion (102) at both ends along its length that bends toward the water chamber (1a). The cover plate (2) has a second bending portion (202) that corresponds to the first bending portion (102). The second bending portion (202) abuts against the first bending portion (102).
6. The water chamber of the flat tube radiator according to claim 5, characterized in that: The main board (1) has a snap-fit hole (103) at both ends along its length, and the cover plate (2) has a snap-fit arm (203) at both ends along its length that snaps into the corresponding snap-fit hole (103).
7. The water chamber of the flat tube radiator according to claim 3, characterized in that: The cover plate (2) has sealing plate connection holes (204) at both ends along its length for assembling the corresponding side sealing plates (3).
8. The water chamber of the flat tube radiator according to claim 3, characterized in that: The cover plate (2) is fixedly provided with a vehicle body connecting bracket (4), which includes a U-shaped base (401) adapted to the cover plate (2) and fastened to the cover plate (2) and a mounting lug (402) fixed on the U-shaped base (401).
9. The water chamber of the flat tube radiator according to claim 3, characterized in that: Both the main board (1) and the cover plate (2) are stamped parts.
10. The water chamber of the flat tube radiator according to claim 9, characterized in that: The main board (1), cover plate (2) and sealing plate (3) are all made of aluminum or aluminum alloy.