Wave crest tooth and convex city tooth alternating type main board and riveting tool

Abstract

The invention relates to the technical field of accessories for automobile cooling systems, in particular to a wave crest tooth and convex rib tooth alternating type mainboard and a riveting tool, which comprises a mainboard box, a side protection frame is arranged on one side of the mainboard box, the frame edge of the side protection frame is positioned on the outer side of the mainboard box on the same plane, and the mainboard box and the side protection frame are connected and fixed through a convex rib table; convex tooth blocks are fixedly arranged on the inner wall of the side, away from the main board box, of the side protection frame in the perimeter direction of the side protection frame in an array mode, the portions, between the adjacent convex tooth blocks, of the side protection frame form a wave crest tooth area, and bent angle convex teeth are fixedly arranged on the inner walls of the four corners of the side, away from the main board box, of the side protection frame. And particularly, good firmness is achieved under the working conditions of frequent thermal circulation and vibration.

Description

Technical Field

[0001] This invention relates to the technical field of automotive cooling system components, and more particularly to a main board with alternating wave-shaped and convex teeth and riveting fixture. Background Technology

[0002] As a key component in the intake thermal management system of turbocharged engines, the water-cooled intercooler is mainly used to cool the high-temperature air after turbocharging, reduce the intake air temperature, increase the air density, thereby improving combustion efficiency, enhancing power output, and reducing harmful emissions. In a typical water-cooled intercooler structure, it mainly includes a heat exchange core, inlet and outlet pipes, coolant interface, and end cap assembly for support and sealing. Among them, the intercooler main board is the core structural component connecting the core, flow channel chamber, and external pipes. It not only undertakes the function of diverting and guiding the flow of gas and cooling medium, but also plays a key role in mechanical support, system sealing, and vehicle installation positioning. The car radiator is a core component of the car's cooling system. It transfers the heat generated by the engine to the outside air through the circulation of coolant, maintaining the engine at its optimal operating temperature of 80-90°C. It usually uses an aluminum core combined with a plastic water chamber, and uses a combination of flat tubes and heat dissipation strips to improve heat dissipation efficiency and ensure stable power output and safe operation of the car. The mainboard of the intercooler and water tank uses two types of riveting teeth: Great Wall teeth and corrugated teeth. The plastic air chamber is connected to the mainboard by the pressing of the Great Wall teeth or the rolling of the corrugated teeth. This has problems such as low structural strength, easy deformation, and poor sealing reliability. In particular, under frequent thermal cycling and vibration conditions, the riveting teeth are prone to loosening, causing leakage.

[0003] The existing publicly available document CN219622775, "Intercooler Structure with Corrugated Cover Plate," discloses a riveting method between the main plate and the air chamber. However, in actual use, this riveting method has the following drawbacks: First, it suffers from weak local structural strength. Stress concentration occurs at the connection between the wave height and trough of the corrugated teeth, which can easily lead to fatigue deformation or even fracture under engine vibration, high-temperature cycling, or assembly stress, thus compromising the sealing and heat exchange functions. Second, the four corners of the main plate are prone to deformation and outward turning during riveting, preventing a complete fit with the air chamber and leaving gaps. Over a long period of time under high temperature and high pressure, this outward turning can worsen and damage the sealing effect. Existing publicly available document CN218882344U – A Great Wall Gear Main Plate for an Automotive Water Tank – discloses a riveting method between the main plate and the water chamber. However, this riveting method has several drawbacks in practical use: First, it has weak shear and tensile strength. The meshing structure of the Great Wall gear is a toothed engagement without the through-fastening effect of a rivet shank. Under lateral shear force or longitudinal tensile force, the teeth are prone to deformation and disengagement, failing to meet the connection requirements of high-load conditions. Second, it places stringent requirements on the precision and material of the sheet metal. The thickness tolerance of the sheet metal and the stamping precision of the tooth shape directly affect the meshing tightness. If the sheet metal hardness is too high, the teeth are prone to chipping during stamping; if the hardness is too low, the teeth are prone to plastic deformation after riveting, leading to loosening of the connection. Secondly, the sealing performance is poor and it is not corrosion resistant. There are tiny gaps in the interlocking teeth, which cannot form an effective seal. It is not suitable for working conditions that require waterproofing and gas protection. At the same time, the areas of concentrated stamping stress on the teeth are prone to corrosion. In humid and corrosive media environments, the durability of the connection will be greatly reduced. Thirdly, the sealing gasket in the sealing groove is not evenly stressed. During the push-fitting process, due to mechanical errors, the sealing gasket is not evenly stressed. Areas with high stress are prone to corrosion, while areas with low stress are prone to gaps, affecting the seal and leading to leakage after long-term operation. Finally, the stress distribution is uneven. The bending of the Great Wall teeth is too large. This area bears a great deal of force and is at risk of bursting or breaking under high temperature and high pressure conditions for a long time.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the shortcomings of existing mainboards riveting to air or water chambers, such as low structural strength, easy deformation, and poor sealing reliability, especially the problem of loosening of riveting teeth and leakage under frequent thermal cycling and vibration conditions, a mainboard with alternating wave-shaped teeth and convex teeth is proposed.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a motherboard with alternating wave-shaped teeth and convex teeth, including a motherboard box, a side guard frame provided on one side of the motherboard box, and the frame edge of the side guard frame located outside the motherboard box on the same plane, the motherboard box and the side guard frame are connected and fixed by convex ribs; convex teeth blocks are arrayed and fixed on the inner wall of the side guard frame away from the motherboard box along the circumference of the side guard frame, the side guard frames between adjacent convex teeth blocks form a wave-shaped tooth area, and curved convex teeth are fixed on the inner walls of the four corners of the side guard frame away from the motherboard box.

[0008] As a preferred embodiment of the alternating wave crest and convex crest motherboard of the present invention, a high-temperature medium flow channel is arranged in an array along the long side direction on the inner side of the motherboard box, and a cooling medium flow channel is arranged between two adjacent high-temperature medium flow channels.

[0009] As a preferred embodiment of the alternating wave crest and convex crest motherboard of the present invention, wherein: a clamping rib is fixedly provided on the motherboard box at the cooling medium flow channel along the flow channel direction.

[0010] As a preferred embodiment of the alternating wave crest and convex crest motherboard of the present invention, wherein: the connection between the motherboard box and the convex rib is provided with a sealing groove along the circumferential direction on the inner side of the convex rib, and the sealing groove is filled with a sealing gasket.

[0011] As a preferred embodiment of the alternating wave crest teeth and convex teeth motherboard of the present invention, wherein: a toothed rib with a length equal to the height of the side guard frame is fixed on the outer wall of the side guard frame at the position of the convex teeth block, and a toothed hole is opened on the side guard frame near the motherboard box at the position of the wave crest teeth area.

[0012] In addition, the present invention also provides the following technical solution: a riveting fixture for a motherboard with alternating wave-shaped teeth and convex teeth, wherein the motherboard with alternating wave-shaped teeth and convex teeth is riveted to an intercooler or water tank by a riveting claw.

[0013] As a preferred embodiment of the riveting fixture for the alternating wave-shaped teeth and convex teeth of the present invention, a chamfer strip is fixedly provided at one end of the riveting claw, and a first fixing platform is fixedly provided at the other end of the riveting claw. The chamfer strip is arc-shaped, and the concave side of the chamfer strip abuts against the wave-shaped teeth area from the outside of the side guard frame.

[0014] As a preferred embodiment of the riveting fixture for the alternating wave-shaped and convex-shaped main body of the present invention, it further includes: a splitting claw plate, on one side surface of the splitting claw plate, along the long side, an array of claw slots for clearance fit with the first fixed platform are provided, a second mounting hole is provided in the claw slot, and a first mounting hole is provided on the first fixed platform for fixing by bolts to fit with the second mounting hole; a second fixed platform is fixed in the middle of the splitting claw plate on the side away from the riveting claw, and a third mounting hole is provided on the second fixed platform.

[0015] The present invention has the following beneficial effects: 1. The riveting pressure is easy to control precisely. When the convex tooth block is riveted to the wave crest tooth area and the air chamber or water chamber, the biting force can be precisely controlled by adjusting the tooth height of the convex tooth block and the wave crest tooth area.

[0016] 2. Uniform stress distribution and long service life of components. The bending degree at the connection between the convex tooth block and the wave crest tooth area is small, and the stress is small, which greatly reduces the risk of breakage. Due to the special structural cooperation when the convex tooth block is riveted to the wave crest tooth area and the air chamber or water chamber, the contact surface can be evenly distributed on the convex tooth and the wave crest tooth, which can effectively avoid the risk of breakage.

[0017] 3. With multiple intersecting teeth, high strength, and resistance to deformation and gaps, the main board of this invention adopts a structure in which convex tooth blocks and wave crest tooth areas are intersected during riveting. The four corners are riveted with curved convex teeth, increasing the number of stress points. The tooth ribs enhance the pressing force of the convex tooth blocks, greatly increasing the strength.

[0018] 4. The pressure on the gasket is uniform during riveting, making it less likely to be damaged and ensuring good sealing performance. The convex tooth block and the wave crest tooth area are cross-riveted, and the tooth height is designed to be consistent. The tooth height remains consistent after riveting and will not be affected by machine errors. This ensures that the gasket in the sealing groove is subjected to uniform extrusion pressure, making it less likely to be damaged and greatly enhancing the sealing performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the alternating wave-shaped teeth and convex teeth motherboard in this invention.

[0020] Figure 2 For the present invention Figure 1 Cross-sectional view of the structure.

[0021] Figure 3 This is a schematic diagram of the overall structure of the riveting claw in this invention.

[0022] Figure 4 This is a schematic diagram of the overall structure of the claw plate in this invention.

[0023] Figure 5 This is a schematic diagram showing the state of the mating body of the riveting claw and the separating claw plate riveting the main board in this invention.

[0024] The attached diagram lists the components represented by each number as follows: 100. Mainboard box; 200. Riveting claw; 300. Dividing claw plate; 101. Side guard frame; 102. High-temperature medium flow channel; 103. Cooling medium flow channel; 104. Rib platform; 201. First fixing platform; 301. Claw slot; 302. Second fixing platform; 101a. Wave crest tooth area; 101b. Raised tooth block; 101c. Bent corner tooth; 101a-1. Tooth hole; 101b-1. Tooth rib; 103a. Pipe clamping rib; 104a. Sealing groove; 202a. First mounting hole; 301a. Second mounting hole; 302a. Third mounting hole. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1, referring to Figure 1 and Figure 2 As shown, this is the first embodiment of the present invention. This embodiment provides a main board with alternating wave-shaped teeth and convex teeth. When the main board is in use, the air chamber or water chamber is pressed from one side of the side guard frame 101 into the connecting body of the main board box 100 and the side guard frame 101, and the connection and fixation are achieved by riveting.

[0030] Specifically, the system includes a motherboard box 100, with a side guard frame 101 on one side. The edge of the side guard frame 101 is located outside the motherboard box 100 on the same plane. The motherboard box 100 and the side guard frame 101 are connected and fixed by a raised rib 104. A sealing groove 104a is provided circumferentially on the inner side of the raised rib 104 at the connection point between the motherboard box 100 and the raised rib 104. A sealing gasket is filled in the sealing groove 104a, and the sealing gasket abuts against the motherboard box 100 and the air chamber or water chamber, thus providing a seal. The raised rib... Platform 104 is used for positioning and fixing the side guard frame 101 to facilitate assembly and welding; high temperature medium flow channels 102 are arranged in an array along the long side direction on the inner side of the main board box 100. The high temperature medium flow channels 102 are inserted into the flat tube, and the high temperature medium flows in the flat tube. A cooling medium flow channel 103 is arranged between two adjacent high temperature medium flow channels 102 for the flow of cooling medium. A tube clamping rib 103a is fixed on the main board box 100 at the cooling medium flow channel 103 along the flow channel direction. The tube clamping rib 103a is used to position and fix the flat tube. On the inner wall of the side guard frame 101 away from the main board box 100, protruding tooth blocks 101b are arranged in an array along the circumferential direction of the side guard frame 101. The side guard frame 101 between adjacent protruding tooth blocks 101b forms a wave crest tooth area 101a. The inner walls of the four corners of the side guard frame 101 away from the main board box 100 are all fixed with corner protrusions 101c. The corner protrusions 101c can limit and fix the air chamber or water chamber after riveting. When in use, the staff first presses the air chamber or water chamber into the side of the side guard frame 101 away from the main board box 100, and the side of the air chamber or water chamber abuts against the sealing gasket. Then, the staff uses a riveting tool to rivet the convex tooth block 101b and the wave crest tooth area 101a.

[0031] See details Figure 3 and Figure 5 As shown, this embodiment also discloses a riveting fixture for a motherboard with alternating wave-shaped and convex teeth, wherein the motherboard with alternating wave-shaped and convex teeth is riveted to an intercooler or water tank by a riveting claw 200. A chamfer strip 201 is fixed at one end of the riveting claw 200, and a first fixing platform 202 is fixed at the other end of the riveting claw 200. The chamfer strip 201 is arc-shaped, and its concave side abuts against the corrugated tooth area 101a from the outside of the side guard frame 101. In use, the chamfer strip 201 abuts against the corrugated tooth area 101a from the outside of the side guard frame 101. The riveting claw 200 is then subjected to riveting force by a riveting machine. Under the pressure, both the corrugated tooth area 101a and the protruding tooth block 101b undergo a certain deformation and are riveted to the outside of the air chamber or water chamber. When riveting the corrugated tooth area 101a, the riveting claw 200 will also bring the protruding tooth block 101b into the rib groove of the air chamber outer plate or the rib groove of the water chamber plate, as shown in the attached figure. Figure 5 As shown.

[0032] Example 2, refer to Figure 1 and Figure 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs in that, in order to further improve the bonding between the motherboard and the air chamber or water chamber, and improve the service life and overall quality, this embodiment is proposed.

[0033] Specifically, a toothed rib 101b-1 with a length equal to the height of the side guard frame 101 is fixed on the outer wall of the side guard frame 101 at the position of the protruding toothed block 101b, which can greatly enhance the riveting force of the protruding toothed block 101b. A toothed hole 101a-1 is opened on the side guard frame 101 near the main board box 100 at the position of the wave crest tooth area 101a, which can greatly reduce the tearing force of the main board during riveting, increase the fit between the protruding toothed block 101b and the air chamber platform or water chamber platform, and help increase the product life.

[0034] Example 3, referring to Figure 3 , Figure 4 and Figure 5 This is the third embodiment of the present invention. This embodiment is based on any of the above embodiments, but the difference is that in order to improve the riveting efficiency and thus improve the production efficiency of the motherboard, a claw plate 300 is proposed.

[0035] Specifically, on one side surface of the splitting claw plate 300, along the long side, there are claw slots 301 for clearance fit with the first fixed platform 202. A second mounting hole 301a is provided in the claw slot. The first fixed platform 202 is provided with a first mounting hole 202a that is fixed by bolts to the second mounting hole 301a. A second fixed platform 302 is fixed in the middle of the side of the splitting claw plate 300 away from the riveting claw 200, and a third mounting hole 302a is provided on the second fixed platform 302. The third mounting hole 302a and the second fixed platform 302 are fitted with the riveting machine. The above-mentioned configuration, with multiple claw slots 301 on the same claw plate 300, enables the fixed connection between the same claw plate 300 and multiple riveting claws 200. This allows multiple riveting claws 200 to simultaneously rivet the main board during operation, improving riveting efficiency.

[0036] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mainboard with alternating wave-shaped and convex teeth, characterized in that: Includes a motherboard box (100), a side guard frame (101) is provided on one side of the motherboard box (100), and the frame edge of the side guard frame (101) is located outside the motherboard box (100) on the same plane. The motherboard box (100) and the side guard frame (101) are connected and fixed by a rib (104). The inner wall of the side guard frame (101) away from the main board box (100) is provided with convex tooth blocks (101b) arranged in an array along the circumferential direction of the side guard frame (101). The side guard frame (101) between adjacent convex tooth blocks (101b) forms a wave crest tooth area (101a). The inner walls of the four corners of the side guard frame (101) away from the main board box (100) are all provided with curved corner convex teeth (101c).

2. The alternating wave-shaped and convex-shaped toothed motherboard as described in claim 1, characterized in that: The inner side of the motherboard box (100) is provided with high-temperature medium channels (102) arranged along the long side direction, and a cooling medium channel (103) is provided between two adjacent high-temperature medium channels (102).

3. The alternating wave-shaped and convex-shaped toothed motherboard as described in claim 2, characterized in that: A clamping rib (103a) is fixed on the main board box (100) at the cooling medium flow channel (103) along the flow channel direction.

4. The alternating wave-shaped and convex-shaped toothed motherboard as described in claim 2, characterized in that: The connection between the main board box (100) and the rib platform (104) is located on the inner side of the rib platform (104) and a sealing groove (104a) is provided along the circumferential direction, and the sealing groove (104a) is filled with a sealing gasket.

5. The alternating wave-shaped and convex-shaped toothed motherboard as described in claim 4, characterized in that: A toothed rib (101b-1) with a length equal to the height of the side guard frame (101) is fixed on the outer wall of the side guard frame (101) at the position of the protruding toothed block (101b). A toothed hole (101a-1) is opened on the side guard frame (101) at the position of the wave crest toothed area (101a) near the main board box (100).

6. A riveting fixture for a mainboard with alternating wave-shaped and convex teeth, characterized in that: The wave-shaped tooth and convex tooth alternating mainboard as described in any one of claims 1 to 5 is riveted to the intercooler or water tank by riveting claws (200).

7. The riveting fixture for the alternating wave-shaped and convex-shaped mainboard as described in claim 6, characterized in that: One end of the rivet claw (200) is fixed with a chamfer strip (201), and the other end of the rivet claw (200) is fixed with a first fixing platform (202). The chamfer strip (201) is arc-shaped, and the concave side of the chamfer strip (201) abuts against the wave crest tooth area (101a) from the outside of the side guard frame (101).

8. The riveting fixture for the alternating wave-shaped and convex-shaped mainboard as described in claim 7, characterized in that: It also includes a claw plate (300), on one side of the claw plate (300) an array of claw slots (301) for clearance fit with the first fixed platform (202) is provided along the long side, and a second mounting hole (301a) is provided in the claw slot (301), and a first mounting hole (202a) is provided on the first fixed platform (202) for fixing by bolts to the second mounting hole (301a); The second fixing platform (302) is fixed in the middle of the side of the split claw plate (300) away from the riveting claw (200), and a third mounting hole (302a) is provided on the second fixing platform (302).

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