Connecting assembly and integrated assembly

Abstract

The connecting assembly comprises a base body and a connecting pipe, a flow channel is formed in the base body, the base body is provided with a connector part, and the connector part is provided with a containing cavity; an inserting part is arranged at the end of the connecting pipe, and at least part of the inserting part is located in the containing cavity; the connecting pipe comprises at least one convex rib, the convex rib is located on the outer wall part of the inserting part, the convex rib is in interference fit with the wall forming the containing cavity, and / or the base body comprises at least one convex rib, the convex rib is located on the wall forming the containing cavity, and the convex rib is in interference fit with the inserting part. According to the connecting assembly, press fitting operation between the connecting pipe and the base body can be achieved, the product percent of pass and the production efficiency are improved, and the cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of connection components, and in particular to a connection component and an integrated component. Background Art

[0002] The fit between the connecting pipe and the base body usually adopts a transition fit. During installation, the connecting pipe and the base body are directly press-fitted by a press-fitting device.

[0003] During the production process, due to the unstable size of the machined interface, some pipes cannot be pressed into place, affecting the product qualification rate and production efficiency. If pressing equipment with a larger pressing force is used, the cost will be higher.

[0004] Therefore, how to realize the press-fitting operation between the connecting pipe and the base, improve the product qualification rate and production efficiency and reduce the cost is a technical problem that the technicians in this field need to solve urgently. Utility Model Content

[0005] The purpose of the present application is to provide a connection assembly and an integrated assembly, which can realize the press-fitting operation between the connecting pipe and the base, improve the product qualification rate and production efficiency and reduce the cost.

[0006] In order to solve the above technical problems, the present application provides a connection assembly, including a base and a pipe, wherein a flow channel is provided in the base, the base has an interface portion, and the interface portion has a receiving cavity;

[0007] The end of the pipe is provided with an inserting portion, and at least part of the inserting portion is located in the accommodating cavity;

[0008] The connecting pipe includes at least one convex rib, which is located on the outer wall of the plug-in portion, and the convex rib is interference fit with the wall forming the accommodating cavity, and / or the base includes at least one convex rib, which is located on the wall forming the accommodating cavity, and the convex rib is interference fit with the plug-in portion.

[0009] After the plug-in portion is aligned with the accommodating cavity, a press-fitting force is provided to the connecting pipe by a press-fitting mechanism, so that the plug-in portion is press-fitted until at least part of it is located in the accommodating cavity, and an interference fit is achieved through the convex rib.

[0010] The plug-in portion and the interface portion achieve interference fit through convex ribs. Compared with the solution of directly interference fit between the outer wall portion of the end of the connecting pipe and the wall forming the accommodating cavity, the interference area can be reduced, thereby reducing the requirement for press-fitting force. For example, smaller-sized press-fitting equipment can be used to meet the design of large interference amount, ensuring that the connecting pipe and the base are pressed into place to avoid looseness, thereby reducing processing accuracy requirements, improving product qualification rate and reducing costs.

[0011] The present application also provides an integrated component, including a valve component and the above-mentioned connecting component, wherein the valve component is fixedly connected or limit-connected to the connecting component, and the channel in the valve component is in communication with the flow channel of the connecting component.

[0012] The technical effect of the integrated component having the above-mentioned connection component is similar to the technical effect of the above-mentioned connection component, and will not be repeated here to save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the structure of the connection assembly provided in an embodiment of the present application;

[0014] Figure 2 yes Figure 1 A cross-sectional view of the middle matrix;

[0015] Figure 3 yes Figure 2 Enlarged view of middle F;

[0016] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle pipe;

[0017] Figure 5 yes Figure 4 Schematic diagram of the bottom structure;

[0018] Figure 6 yes Figure 5 Enlarged view of middle H;

[0019] Figure 7 yes Figure 1 A top view of

[0020] Figure 8 yes Figure 7 Middle AA section view;

[0021] Fig. 9 yes Figure 8 Enlarged view of middle B;

[0022] Fig.10 yes Figure 1 Side view of

[0023] Fig.11 yes Fig.10 CC section view in;

[0024] Fig.12 yes Fig.11 Enlarged view of E in the middle;

[0025] Fig.13 yes Fig.10 DD section view in;

[0026] Fig.14 yes Fig.13Enlarged view of middle G;

[0027] Fig.15 It is a schematic diagram of the structure of the integrated component provided in this embodiment.

[0028] Attached Figure 1-Figure 15 In the figure, the reference numerals are described as follows:

[0029] 100 connection components; 200 valve components, 300 heat exchangers;

[0030] 1 base body, 11 flow channel, 12 interface portion, 121 matching section, 122 gap section, 123 guide section, 124 limiting step, 13 step portion;

[0031] 2 connecting pipe, 21 plug-in portion, 22 convex rib, 23 pipe body, 24 transition section, 25 guide structure;

[0032] 3 annular cavity;

[0033] 4 receiving slots;

[0034] 5. Solder. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] The present application embodiment provides a connection component, such as Figure 1-Figure 2 As shown, the connection assembly includes a base body 1 and a connecting pipe 2, wherein a flow channel 11 is provided in the base body 1, and an interface portion 12 is provided in the base body 1. The interface portion 12 has a accommodating cavity, and the accommodating cavity is connected to the flow channel 11. An inserting portion 21 is provided at the end of the connecting pipe 2, and at least part of the inserting portion 21 is located in the accommodating cavity.

[0037] The connecting pipe 2 includes at least one convex rib 22, which is located on the outer wall of the plug-in portion 21, and the convex rib is interference fit with the wall forming the accommodating cavity. Alternatively, the base 1 may include at least one convex rib 22, which is located on the wall forming the accommodating cavity, and the convex rib 22 can be interference fit with the plug-in portion 21. Alternatively, the connecting pipe 2 may include at least one convex rib 22, and the base 1 may also include at least one convex rib 22.

[0038] That is to say, the connecting pipe 2 is plug-connected to the interface portion 12 of the base body 1 through the plug-in portion 21 , and an interference fit is achieved through the ribs 22 to ensure connection stability.

[0039] Specifically, during installation, after aligning the plug-in portion 21 with the accommodating cavity, a press-fitting mechanism provides a press-fitting force to the pipe 2 so that the plug-in portion 21 is press-fitted until at least part of it is located in the accommodating cavity, and an interference fit is achieved through the rib 22 .

[0040] An interference fit is achieved between the plug-in portion 21 and the accommodating cavity of the interface portion 12 by means of the convex rib 22. Compared with a solution of directly interference fitting the end outer wall portion of the connecting pipe 2 with the wall forming the accommodating cavity, the interference area can be reduced, thereby reducing the requirement for the press-fitting force. For example, a smaller-sized press-fitting equipment can be used to meet the design of a large interference amount, thereby ensuring that the connecting pipe 2 and the base body 1 are pressed into place and avoiding looseness, thereby reducing the processing accuracy requirements, improving the product qualification rate and reducing costs.

[0041] In this embodiment, Figure 4-Figure 6 As shown, the outer wall of the plug-in portion 21 is provided with a convex rib 22. Specifically, the convex rib 22 and the plug-in portion 21 are integrally formed to simplify the process. Alternatively, the convex rib 22 may be integrally formed with the base 1.

[0042] For the convenience of explanation, the following description will be made in detail by taking the example that the convex rib 22 is integrally formed on the outer wall of the plug-in portion 21 of the pipe 2 .

[0043] The convex ribs 22 are arranged along the length direction of the plug-in portion 21, so that the press-fitting force requirement can be reduced. Specifically, in this embodiment, there is no restriction on the number and size of the convex ribs 22, which can be designed according to actual conditions, such as the diameter of the plug-in portion 21. When the number of the convex ribs 22 is at least two, each convex rib 22 can be evenly spaced along the circumferential direction.

[0044] like Figure 4-Figure 6 As shown, the connecting pipe 2 also includes a tube body 23, the cavity of the plug-in portion 21 is connected to the cavity of the tube body 23, the outer diameter of the connecting portion 21 when the rib 22 is not provided is a first outer diameter, and the outer diameter of the connecting portion 21 after the rib 22 is provided is a second outer diameter, the first outer diameter is smaller than the outer diameter of the tube body 23, and the second outer diameter can be adapted to the inner diameter of the interface portion 12 and achieve an interference fit, in this way, it is equivalent to only adjusting the size structure of the connecting pipe 2 on the basis of the prior art, so that it can be adapted to the interface portion 12 of the existing substrate 1, with good adaptability, and no modification is required to the interface portion 12 of the substrate 1, so that the overall modification of the connecting assembly is small and the cost is low.

[0045] like Figure 3 As shown, the wall surface of the base body 1 is also provided with a step portion 13 along the circumference of the interface portion 12. When the plug-in portion 21 and the interface portion 12 are in the plug-in state, as shown in FIG. Figure 7-Figure 9 As shown, the step portion 13 can be enclosed with the outer wall portion of the plug-in portion 21 to form a receiving groove 4, and the receiving groove 4 can be used to receive the solder 5 (such as Figure 12-14As shown), specifically, before press-fitting, the solder 5 is first sleeved outside the plug-in portion 21, and then the plug-in portion 21 and the interface portion 12 are aligned and pre-assembled, the solder 5 is moved along the connecting pipe 2 to the receiving groove 4, and then the connecting pipe 2 is press-fitted by the press-fitting equipment, and after the press-fitting is completed, the solder 5 can be melted by laser welding, and the melted solder 5 can be in the receiving groove 4, and the plug-in portion 21 and the interface portion 12 are welded and fixed along the circumferential direction to ensure the sealing.

[0046] The receiving groove 4 can limit the solder 5 and the melted solder 5 to ensure the welding stability and sealing between the plug-in part 21 and the interface part 12. At the same time, after the welding is completed, no bulge is formed on the surface of the substrate 1, and the overall structure is more complete.

[0047] like Figure 3 As shown, the interface portion 12 includes a matching section 121 and a gap section 122, wherein the matching section 121 is located on the side facing the flow channel 11, and the matching section 121 is used for interference fit with the plug-in portion 21, and the inner diameter of the gap section 122 is larger than the inner diameter of the matching section 121. In the plug-in state, the plug-in portion 21 is interference fit with the matching section 121 through the rib 22, and the outer wall of the plug-in portion 21 and the gap section 122 are gap-fitted, and an annular cavity 3 (such as Figure 10-12 shown).

[0048] During the installation process, a pressing force is provided to the pipe 2 through a pressing device, so that the plug-in part 21 can be inserted into the mating section 121 of the interface part 12. Since the plug-in part 21 and the mating section 121 are interference fit through the convex rib 22, metal chips may be generated during the pressing process due to the close sliding between the mating section 121 and the convex rib 22. These metal chips will enter the annular cavity 3, preventing the metal chips from affecting the subsequent welding between the plug-in part 21 and the base body 1, thereby ensuring the welding quality.

[0049] In this embodiment, the interference fit length between the plug-in portion 21 and the mating section 121 through the rib 22 is in the range of 4mm-10mm. If the interference fit length is too short, it may cause unstable connection and looseness. If the interference fit length is too long, it may lead to high processing difficulty and great assembly difficulty. When the interference fit length is set within the range of 4mm-10mm, it can ensure stable connection while reducing processing and assembly difficulty.

[0050] like Figure 3 As shown, the interface portion 12 is further provided with a limiting step 124, which is located at one end of the mating section 121 facing the flow channel 11, and can limit the insertion depth of the plug-in portion 21. Specifically, after being inserted into place, it can be as follows Fig. 9 and Fig.14The end of the plug-in portion 21 shown is in contact with the limiting step 124, or a certain distance may be left between the plug-in portion 21 and the limiting step 124 to ensure that the interference fit length between the plug-in portion 21 and the interface portion 12 is within the range of 4mm-10mm.

[0051] like Figure 3 and Fig.12 As shown, the interface portion 12 also includes a guide section 123, which is connected to the side of the gap section 122 away from the mating section 121 and is located between the gap section 122 and the step portion 13. The inner wall surface of the guide section 123 is a conical structure, and the small diameter end of the guide section 123 is arranged toward the side of the gap section 122. The setting of the guide section 123 can provide a guiding effect on the plug-in connection of the plug-in portion 21, thereby facilitating the plug-in installation of the plug-in portion 21.

[0052] Similarly, if Figure 4 As shown, the outer wall of the end of the plug-in portion 21 is also provided with a guide structure 25. Specifically, the outer wall of the end of the plug-in portion 21 is conical to form the guide structure 25, so as to further facilitate the plug-in operation.

[0053] like Figure 4 , Fig.12 and Fig.14 As shown, a transition section is further provided between the plug-in portion 21 and the tube body 23. The transition section 24 is coaxially arranged with the plug-in portion 21, and the outer wall surface of the transition section 24 is a conical structure. The large diameter section of the transition section 24 faces one side of the tube body 23, and the small diameter end of the transition section 24 faces one side of the plug-in portion 21. When the plug-in portion 21 and the interface portion 12 are in the plugged state, the outer wall portion of the transition section 24 can abut against the solder 5 located in the accommodating groove, thereby ensuring the stability of the solder 5 and preventing the solder 5 from being deformed and moved due to heat.

[0054] A chamfered structure is provided at the connection between the transition section 24 and the plug-in portion 21, which may be a chamfered structure with a radius of 0.2 mm. A chamfered structure is also provided at the connection between the transition section 24 and the tube body 23, which may be a chamfered structure with a radius of 0.5 mm, to achieve a smooth transition between the connecting pipe 2 and the plug-in portion 21.

[0055] like Fig.15 As shown, an embodiment of the present application also provides an integrated component, which includes the above-mentioned connecting component 100 and a valve component 200, the valve component 200 is fixedly connected or limit-connected to the connecting component 100, and a channel is provided in the valve component 200, which is connected to the flow channel 11 in the base 1 of the connecting component 100.

[0056] Further, such as Fig.15As shown, the integrated component also includes a heat exchanger 300, which is fixedly connected or limit-connected to the connecting component 100, and along the height direction of the connecting component 100, the component 200 is located on one side of the connecting component 100, and the heat exchanger 300 is located on the opposite side of the connecting component 100.

[0057] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A connection assembly, characterized in that: It comprises a base body (1) and a connecting pipe (2), wherein a flow channel (11) is provided in the base body (1), the base body (1) has an interface portion (12), and the interface portion (12) has a receiving cavity; An inserting portion (21) is provided at the end of the connecting pipe (2), and at least a portion of the inserting portion (21) is located in the accommodating cavity; The connecting pipe (2) comprises at least one convex rib (22), the convex rib (22) is located on the outer wall of the plug-in portion (21), and the convex rib (22) is interference fit with the wall forming the accommodating cavity, and / or the base (1) comprises at least one convex rib (22), the convex rib (22) is located on the wall forming the accommodating cavity, and the convex rib (22) is interference fit with the plug-in portion (21).

2. The connection assembly according to claim 1, characterized in that: The convex rib (22) and the plug-in portion (21) are integrally formed.

3. The connection assembly according to claim 2, characterized in that: The connecting pipe (2) further comprises a tube body (23), the cavity of the plug-in portion (21) is connected to the cavity of the tube body (23), and the outer diameter of the plug-in portion (21) is smaller than the outer diameter of the tube body (23).

4. The connection assembly according to claim 3, characterized in that: The interface portion (12) of the base (1) is provided with a step portion (13), the connection assembly comprises a receiving groove, the wall forming the receiving groove comprises the outer wall portion of the connecting pipe (2) and the wall portion of the step portion (13), and the receiving groove (4) is used to receive solder (5).

5. The connection assembly according to claim 4, characterized in that: The connecting pipe (2) comprises a transition section (24), the transition section (24) is located between the plug-in portion (21) and the pipe body (23), the transition section (24) is coaxial with the plug-in portion (21), and the outer wall surface of the transition section (24) is a conical surface, and the transition section (24) abuts against the solder (5).

6. The connection assembly according to claim 5, characterized in that: The connection between the transition section (24) and the plug-in portion (21), and the connection between the transition section (24) and the tube body (23), are respectively provided with chamfer structures.

7. The connection assembly according to any one of claims 1 to 6, characterized in that: The interface portion (12) comprises a fitting section (121) and a gap section (122); the fitting section (121) is located on a side facing the flow channel (11); when the plug-in portion (21) and the interface portion (12) are plugged in, the plug-in portion (21) and the fitting section (121) are in interference fit, the plug-in portion (21) and the gap section (122) are in clearance fit, and an annular cavity (3) is formed between the plug-in portion (21) and the gap section (122).

8. The connection assembly according to claim 7, characterized in that: The interface portion (12) further comprises a guide section (123), wherein the guide section (123) is connected to an end of the gap section (122) away from the matching section (121), an inner wall surface of the guide section (123) presents a conical structure, and a small diameter end of the guide section (123) is arranged toward an end of the gap section (122).

9. An integrated component, characterized in that: It comprises a valve component (200) and a connecting assembly as claimed in any one of claims 1 to 8, wherein the valve component (200) is fixedly connected or limit-connected to the connecting assembly, and a channel in the valve component (200) is connected to a flow channel (11) of the connecting assembly.

10. The integrated assembly according to claim 9, characterized in that The integrated component comprises a heat exchanger (300), wherein the heat exchanger (300) is fixedly connected or positionally connected to the connection component, and along the height direction of the connection component, the valve component (200) is located on one side of the connection component, and the heat exchanger (300) is located on the opposite side of the connection component.

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