Connecting structure and method for connecting workpieces

A technology for connecting structures and workpieces, which is applied in the direction of manufacturing tools, welding equipment, laser welding equipment, etc., can solve problems such as affecting the appearance, increasing operating costs, and high solder joint density, so as to improve the bonding force, improve structural stability, and improve aesthetic effect

Pending Publication Date: 2022-07-01
SHENZHENSHI YUZHAN PRECISION TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

However, there are some problems in this operation: (1) when the middle plate and the middle frame are welded together, the density of solder joints is high, which greatly increases the operating cost; (2) if the melting poin...
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Method used

In the present application, the connection structure 10 realizes the connection between the first workpiece 11 and the second workpiece 12 by means of the synergistic effect of the first welding portion 13 and the bonding portion 14, thus greatly improving The bonding force between the first workpiece 11 and the second workpiece 12 is improved, and the structural stability of the connecting structure 10 is effectively improved. In addition, covering the first welding portion 13 with the bonding portion 14 effectively improves the aesthetics of the connecting structure 10 .
In this embodiment, referring to Fig. 1 and Fig. 3, the side of the first workpiece 11 facing the protruding portion 126 is spaced apart from the side of the first workpiece 11 facing the protruding portion 126 to form a third Gap 127. The third gap 127 communicates with the first gap 123 and the second gap 124 . The bonding portion 14 is further filled in the third gap 127 to further strengthen the bonding strength between the first workpiece 11 and the second workpiece 12 .
It can be understood that, referring to Fig. 1 and Fig. 5, the setting of the step groove 15 provides accommodating space for the adhesive part 14 covered on the first welded part 13, so as to effectively avoid sticking to the first welded part 14. The bonding part 14 on the part 13 protrudes relative to each workpiece (for example: the first workpiece 11 and/or the second workpiece 12 ) and affects the aesthetics of the connection structure 10 . In addition, the setting of the stepped groove 15 can also increase the bonding area between the bonding portion 14 and the first workpiece 11 , thereby effectively improving the bonding strength between the first workpiece 11 and the second workpiece 12 .
It can be understood that, referring to Fig. 1 and Fig. 5, the setting of the stepped groove 15 provides accommodating space for the adhesive part 14 covered on the first welded part 13, so as to effectively avoid sticking to the first welded part 14. The bonding part 14 on the part 13 protrudes relative to each workpiece (for example: the first workpiece 11 and/or the second workpiece 12 ) and affects the aesthetics of the connection structure 10 . In addition, the setting of the stepped groove 15 can also increase the bonding area between the bonding portion 14 and the first workpiece 11 , thereby effectively improving the bonding strength between the first workpiece 11 and the second workpiece 12 .
It can be understood that, with the help of the structural design of the groove 125, the bonding portion 14 is further filled in the groove 125, which strengthens the connection between the bonding portion 14 and the second workpiece 12, thereby effectively improving the The bonding strength of the first workpiece 11 and the second workpiece 12 .
Wh...
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Abstract

A connecting structure comprises a first workpiece, a second workpiece, a first welding part and a bonding part. The first welding part is arranged between the first workpiece and the second workpiece and used for connecting the first workpiece and the second workpiece. And the bonding part covers the first welding part and is used for connecting the first workpiece and the second workpiece. The connecting structure is attractive in appearance and stable in structure. The invention further provides a method for connecting the workpieces.

Application Domain

Casings/cabinets/drawers detailsLaser beam welding apparatus +1

Technology Topic

PhysicsEngineering +1

Image

  • Connecting structure and method for connecting workpieces
  • Connecting structure and method for connecting workpieces
  • Connecting structure and method for connecting workpieces

Examples

  • Experimental program(1)

Example Embodiment

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application.
[0064] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
[0065] see figure 1 and figure 2, some embodiments of the present application provide a connection structure 10 including a first workpiece 11 , a second workpiece 12 , a first welding portion 13 and a bonding portion 14 . The first welding part 13 is disposed between the first workpiece 11 and the second workpiece 12 for connecting the first workpiece 11 and the second workpiece 12 . The bonding portion 14 covers the first welding portion 13 and is used for connecting the first workpiece 11 and the second workpiece 12 .
[0066] The connection structure 10 is not limited to be applied to mobile phones, tablet computers, wearable electronic devices, and the like.
[0067] In the present application, the connection structure 10 realizes the connection between the first workpiece 11 and the second workpiece 12 by means of the synergistic effect of the first welding part 13 and the bonding part 14, which greatly improves the first workpiece 11 and the second workpiece 12. The bonding force between a workpiece 11 and the second workpiece 12 effectively improves the structural stability of the connection structure 10 . In addition, the first welding portion 13 is covered by the bonding portion 14 , thereby effectively improving the aesthetics of the connecting structure 10 .
[0068] The material of the first workpiece 11 is not limited to aluminum. The material of the second workpiece 12 is not limited to at least one of aluminum, stainless steel, and titanium.
[0069] see figure 1 , image 3 and Figure 4 , the first workpiece 11 includes a first connecting portion 111 . The second workpiece 12 includes a second connecting portion 121 . The second connecting portion 121 is connected to the first connecting portion 111 through the first welding portion 13 .
[0070] In some embodiments, see Figure 5 , the first workpiece 11 further includes a first workpiece body 112 . The first connecting portion 111 protrudes from the edge of the first workpiece body 112 .
[0071] In this embodiment, see Figure 5 , the first workpiece body 112 is in the shape of a rectangular plate. It can be understood that, in other embodiments, the shape of the first workpiece body 112 can be adaptively adjusted according to actual needs, and can be a regular shape such as a circle, a diamond, or other irregular shapes.
[0072] In other embodiments, see Figure 5 , the first workpiece 11 further includes a connecting portion 113 . The connecting portion 113 is connected between the first connecting portion 111 and the first workpiece body 112 .
[0073] In some further embodiments, see figure 1 and Figure 5 , there is a difference in thickness between the connecting portion 113 and the first connecting portion 111 . The thickness of the connecting portion 113 is greater than that of the first connecting portion 111 . In this way, the connecting portion 113 and the first connecting portion 111 together form a stepped structure. That is, the engaging portion 113 and the first connecting portion 111 together form the stepped groove 15 . The bonding portion 14 covering the first welding portion 13 is also located in the stepped groove 15 at the same time.
[0074] understandable, see figure 1 and Figure 5 , the setting of the stepped groove 15 provides a receiving space for the bonding portion 14 covering the first welding portion 13, so as to effectively prevent the bonding portion 14 covering the first welding portion 13 from sticking relative to each workpiece ( For example, the first workpiece 11 and/or the second workpiece 12) protrude to affect the aesthetics of the connection structure 10 . In addition, the provision of the stepped groove 15 can also increase the bonding area between the bonding portion 14 and the first workpiece 11 , thereby effectively improving the bonding strength between the first workpiece 11 and the second workpiece 12 .
[0075] In some embodiments, the first workpiece 11 is not limited to being produced by integral molding.
[0076] see figure 1 , image 3 and Figure 4 , the second workpiece 12 is provided with a connecting groove 122 for accommodating the first connecting portion 111 . The second connecting portion 121 is disposed in the connecting groove 122 . The first welding portion 13 is disposed in the connecting groove 122 for connecting the first connecting portion 111 and the second connecting portion 121 .
[0077] In some embodiments, see Image 6 , at least one hole 16 is provided on the surface enclosing the connecting groove 122 and extending toward the interior of the first workpiece 11 and the second workpiece 12 . The connection structure 10 also includes a reinforcement portion 141 . The reinforcing portion 141 is connected to the bonding portion 14 for filling the at least one hole 16 . In this way, with the cooperation of the reinforcing portion 141 and the hole 16 , the bonding force between the first workpiece 11 and the second workpiece 12 is further enhanced.
[0078] It can be understood that in other embodiments, the hole 16 and the reinforcing portion 141 may be omitted.
[0079] see Figure 4 , the connecting groove 122 includes a first side surface 1221 and a second side surface 1222 . The first side surface 1221 is connected to the second connecting portion 121 . The second side surface 1222 is connected to the first side surface 1221 and the second connecting portion 121 .
[0080] In some embodiments, see figure 1 and see image 3 , the side of the first connecting portion 111 facing the second side surface 1222 is spaced apart from the second side surface 1222 to form a first gap 123 . A side of the first connecting portion 111 facing the first side surface 1221 is spaced apart from the first side surface 1221 to form a second gap 124 . The first gap 123 and the second gap 124 communicate with each other. The bonding portion 14 is also filled in the first gap 123 and the second gap 124 to further strengthen the bonding strength of the first workpiece 11 and the second workpiece 12 .
[0081] In some embodiments, see figure 1 and see image 3 , a groove 125 is provided in the intersection area of ​​the second side surface 1222 and the first side surface 1221 . The bonding portion 14 is also filled in the groove 125 . Wherein, the groove 125 , the first gap 123 and the second gap 124 communicate with each other.
[0082] It can be understood that by virtue of the structural design of the groove 125, the bonding portion 14 is further filled in the groove 125, which strengthens the connection between the bonding portion 14 and the second workpiece 12, thereby effectively improving the first workpiece. The bonding strength of the workpiece 11 and the second workpiece 12 .
[0083] In other embodiments, at least one of the first gap 123 , the second gap 124 and the groove 125 can be omitted according to actual needs.
[0084] In some embodiments, see Figure 4 , the included angle between the first side surface 1221 and the second connecting portion 121 is a. The range of a is 60°~80°.
[0085] In some embodiments, see image 3 , the second workpiece 12 further includes a protruding portion 126 disposed on the second side surface 1222 . The protruding portion 126 protrudes toward the first workpiece 11 from the second side surface 1222 and protrudes relative to the second workpiece 12 . Wherein, part of the side surface of the protruding portion 126 can be used as the first side surface 1221 of the connecting groove 122 .
[0086] In this embodiment, see figure 1 and image 3 , the side surface of the protruding portion 126 facing the first workpiece 11 is spaced apart from the side surface of the first workpiece 11 facing the protruding portion 126 to form a third gap 127 . The third gap 127 communicates with the first gap 123 and the second gap 124 . The bonding portion 14 is further filled in the third gap 127 to further strengthen the bonding strength between the first workpiece 11 and the second workpiece 12 .
[0087] It can be understood that, in other embodiments, the third gap 127 may be omitted according to actual conditions. Then, when the third gap 127 does not exist, the protruding portion 126 and the first workpiece 11 are not limited to be connected by welding, clamping or the like.
[0088] In some embodiments, see figure 1 , the connection structure 10 also includes a second welding portion 17 . The second welding portion 17 is disposed between the first workpiece 11 and the second workpiece 12 , and is spaced apart from the first welding portion 13 for connecting the first workpiece 11 and the second workpiece 12 . The bonding portion 14 further covers the second welding portion 17 .
[0089] Wherein, in the present application, by means of the setting of the bonding portion 14, while ensuring the connection strength between the first workpiece 11 and the second workpiece 12, the first welding portion 13 and the second welding portion 17 are arranged at intervals , thereby reducing the density of solder joints, thereby reducing the operating cost of the connection structure 10 .
[0090] Correspondingly, it can be understood that the second workpiece 12 is further provided with a connecting groove 122 for accommodating the second welding portion 17 . The connection relationship between the second welding portion 17 and the components in the first workpiece 11 and the second workpiece 12 is the same as or similar to that of the first welding portion 13 , and details are not repeated here.
[0091] In some embodiments, see figure 2 , the connection structure 10 also includes a component 18 . The component 18 is arranged in the first workpiece 11 .
[0092] Wherein, the component 18 is not limited to a battery, a chip, or the like.
[0093] In some embodiments, see figure 2 , the first workpiece body 112 is provided with a receiving groove 1121 . The receiving groove 1121 is used for receiving the component 18 . It can be understood that the number and shape of the receiving grooves 1121 are not limited, and can be adaptively adjusted according to the number and shape of the components 18 . The number of the receiving grooves 1121 can be one, two, three, four and so on. The shape of the receiving groove 1121 may be a regular shape such as a rectangle, a circle, or other irregular shapes.
[0094] In further embodiments, see figure 1 and figure 2 , the first welding part 13 is also used to form a heat dissipation channel 131 . The heat dissipation channel 131 is used for transferring the heat generated by the component 18 .
[0095] understandable, see figure 1 , figure 2 and Figure 5 , the heat generated by the component 18 is sequentially transferred from the first workpiece body 112 to the first welding part 13 connected with the first workpiece body 112 and the second workpiece 12 connected with the first welding part 13 , Therefore, the heat generated by the component 18 is conducted out of the connection structure 10 to realize the heat dissipation of the component 18 . The heat dissipation channel 131 is formed by the transfer path of the heat generated by the component 18 .
[0096] In addition, see figure 2 and image 3 , because the third gap 127 is filled with the bonding portion 14, and due to the thermal insulation properties of the bonding portion 14, the heat generated by the component 18 cannot be transferred to the second workpiece 12 through the bonding portion 14, In this way, the region of the first workpiece 11 and the region of the second workpiece 12 corresponding to the third gap 127 filled with the bonding portion 14 constitute the thermal insulation area 128 . Therefore, the heat insulating area 128 can be used as a accommodating space for those components 18 that are not heat-resistant, so as to avoid the problem that the components 18 that are not heat-resistant are damaged due to high temperature.
[0097] In some embodiments, see figure 1 and figure 2 , the connection structure 10 also includes a heat absorption part 19 . The heat absorbing portion 19 is disposed on the first workpiece 11 and is connected to the first welding portion 13 . Wherein, the heat absorption part 19 is not limited to be a heat conduction grid.
[0098] In some embodiments, see figure 1 , figure 2 and Figure 5 , the heat absorbing portion 19 is disposed on the connecting portion 113 and is connected to the first welding portion 13 . In this way, through the disposition of the heat absorbing portion 19 , the heat generated by the component 18 can be directionally transferred to the second workpiece 12 , so as to assist the component 18 to better dissipate heat.
[0099] In some embodiments, see Figure 7 , the second workpiece 12 includes a first subsection 12a and a second subsection 12b. The second subsection 12b is connected to the first subsection 12a and is located between the first subsection 12a and the first workpiece 11 . Wherein, the connecting groove 122 is provided in the second sub-section 12b.
[0100] In some embodiments, the first subsection 12a is used as the outer layer of the second workpiece 12, the selected material is stainless steel or titanium with higher hardness, and the second subsection 12b is used as the inner layer of the second workpiece 12 , the selected material is light-weight aluminum, which can not only reduce the overall weight of the connection structure 10 but also ensure the hardness and wear resistance of the outer surface of the connection structure 10 .
[0101] see Figure 8 , some embodiments of the present application also provide a method for connecting workpieces, for connecting the first workpiece 11 and the second workpiece 12 . The first workpiece 11 includes a first connecting portion 111, and the second workpiece 12 includes a second connecting portion 121 (see Figure 3 to Figure 4 ). see Figure 8 , the method of connecting workpieces includes:
[0102] Step S1: see figure 1 , image 3 and Figure 4 , the first connection part 111 and the second connection part 121 are laser welded to form the first welding part 13 . Wherein, the first welding part 13 is used for connecting the first workpiece 11 and the second workpiece 12 .
[0103] In some embodiments, the method of laser welding the first connecting portion 111 and the second connecting portion 121 is pulsed laser welding. The power of laser welding the first connection part 111 and the second connection part 121 is 1380W, the welding speed is 50mm/s, the jumping speed is 100mm/s, the welding delay is 90us, and the jumping delay is 100us , the laser on delay is -100um, the laser off delay is 40us, and the processing focal length is +1.0mm ~ +2.0mm.
[0104] The material of the first workpiece 11 is not limited to aluminum. The material of the second workpiece 12 is not limited to at least one of aluminum, stainless steel, and titanium.
[0105] Step S2: see figure 1 , forming a bonding portion 14 , the bonding portion 14 covers the first welding portion 13 and is used for connecting the first workpiece 11 and the second workpiece 12 .
[0106] In some embodiments, see Figure 5 , the first workpiece 11 further includes a first workpiece body 112 . The first connecting portion 111 protrudes from the edge of the first workpiece body 112 .
[0107] In this embodiment, see Figure 5 , the first workpiece body 112 is in the shape of a rectangular plate. It can be understood that, in other embodiments, the shape of the first workpiece body 112 can be adaptively adjusted according to actual needs, and can be a regular shape such as a circle, a diamond, or other irregular shapes.
[0108] In other embodiments, see Figure 5 , the first workpiece 11 further includes a connecting portion 113 . The connecting portion 113 is connected between the first connecting portion 111 and the first workpiece body 112 .
[0109] In some further embodiments, see figure 1 and Figure 5 , there is a difference in thickness between the connecting portion 113 and the first connecting portion 111 . The thickness of the connecting portion 113 is greater than that of the first connecting portion 111 . In this way, the connecting portion 113 and the first connecting portion 111 together form a stepped structure. That is, the engaging portion 113 and the first connecting portion 111 together form the stepped groove 15 . The bonding portion 14 covering the first welding portion 13 is also located in the stepped groove 15 at the same time.
[0110] understandable, see figure 1 and Figure 5 , the setting of the stepped groove 15 provides a receiving space for the bonding portion 14 covering the first welding portion 13, so as to effectively prevent the bonding portion 14 covering the first welding portion 13 from sticking relative to each workpiece ( For example, the first workpiece 11 and/or the second workpiece 12) protrude to affect the aesthetics of the connection structure 10 . In addition, the provision of the stepped groove 15 can also increase the bonding area between the bonding portion 14 and the first workpiece 11 , thereby effectively improving the bonding strength between the first workpiece 11 and the second workpiece 12 .
[0111] In some embodiments, the first workpiece 11 is not limited to being produced by integral molding.
[0112] In some embodiments, before step S2, the method for connecting workpieces further includes:
[0113] Step S3: see Image 6 , at least one hole 16 is formed on the first workpiece 11 and the second workpiece 12 .
[0114] Before step S2, the method for connecting workpieces further includes:
[0115] Step S4: see Image 6 , forming a reinforcing portion 141 , the reinforcing portion 141 is connected to the bonding portion 14 and used to fill the at least one hole 16 .
[0116] In some embodiments, the hole 16 can also be first formed on the first workpiece 11 and the second workpiece 12 , and then the hole can be filled through the bonding portion 14 , so that the reinforcing portion 141 is a part of the bonding portion 14 . .
[0117] In this way, with the cooperation of the reinforcing portion 141 and the hole 16 , the bonding force between the first workpiece 11 and the second workpiece 12 is further enhanced.
[0118] It can be understood that, in other embodiments, step S3 and step S4 may be omitted according to actual requirements.
[0119] In some embodiments, before step S2, the method for connecting workpieces further includes:
[0120] Step S5: see figure 1 , image 3 and Figure 4 , a connecting groove 122 is opened on the second workpiece 12 . The connecting groove 122 is provided with the second connecting portion 121 , and the first connecting portion 111 is accommodated in the connecting groove 122 .
[0121] Wherein, step S1 further includes: forming the first welding portion 13 in the connecting groove 122 .
[0122] Step S2 further includes: the bonding portion 14 also fills the connecting groove 122 .
[0123] see Figure 4 , the connecting groove 122 includes a first side surface 1221 and a second side surface 1222 . The first side surface 1221 is connected to the second connecting portion 121 . The second side surface 1222 is connected to the first side surface 1221 and the second connecting portion 121 .
[0124] In some embodiments, the included angle between the first side surface 1221 and the second connecting portion 121 is a. The range of a is 60°~80°.
[0125] In some embodiments, see figure 1 and see image 3 , the side of the first connecting portion 111 facing the second side surface 1222 is spaced apart from the second side surface 1222 to form a first gap 123 . A side of the first connecting portion 111 facing the first side surface 1221 is spaced apart from the first side surface 1221 to form a second gap 124 . The first gap 123 and the second gap 124 communicate with each other. The bonding portion 14 is also filled in the first gap 123 and the second gap 124 to further strengthen the bonding strength of the first workpiece 11 and the second workpiece 12 .
[0126] In other embodiments, at least one of the first gap 123 and the second gap 124 may be omitted according to actual requirements.
[0127] In some embodiments, after step S5, the method for connecting workpieces further includes:
[0128] Step S6: see figure 1 and see image 3 , a groove 125 is formed in the intersection area of ​​the first side surface 1221 and the second side surface 1222 .
[0129] Wherein, step S2 further includes: the bonding portion 14 is also filled in the groove 125 .
[0130] It can be understood that by virtue of the structural design of the groove 125, the bonding portion 14 is further filled in the groove 125, which strengthens the connection between the bonding portion 14 and the second workpiece 12, thereby effectively improving the first The bonding strength of the workpiece 11 and the second workpiece 12 .
[0131] In other embodiments, the groove 125 can be omitted according to actual requirements.
[0132] In some embodiments, see image 3 , the second workpiece 12 further includes a protruding portion 126 disposed on the second side surface 1222 . The protruding portion 126 protrudes toward the first workpiece 11 from the second side surface 1222 and protrudes relative to the second workpiece 12 . Wherein, part of the side surface of the protruding portion 126 can be used as the first side surface 1221 of the connecting groove 122 .
[0133] In this embodiment, see figure 1 and image 3 , the side surface of the protruding portion 126 facing the first workpiece 11 is spaced apart from the side surface of the first workpiece 11 facing the protruding portion 126 to form a third gap 127 . The third gap 127 communicates with the first gap 123 and the second gap 124 . The bonding portion 14 is further filled in the third gap 127 to further strengthen the bonding strength between the first workpiece 11 and the second workpiece 12 .
[0134] It can be understood that, in other embodiments, the third gap 127 may be omitted according to actual conditions. Then, when the third gap 127 does not exist, the protruding portion 126 and the first workpiece 11 are not limited to be connected by welding, clamping or the like.
[0135] In some embodiments, see figure 1 , the connection structure 10 also includes a second welding portion 17 . The second welding portion 17 is disposed between the first workpiece 11 and the second workpiece 12 , and is spaced apart from the first welding portion 13 for connecting the first workpiece 11 and the second workpiece 12 . The bonding portion 14 further covers the second welding portion 17 .
[0136] Wherein, in the present application, by means of the setting of the bonding portion 14, while ensuring the connection strength between the first workpiece 11 and the second workpiece 12, the first welding portion 13 and the second welding portion 17 are arranged at intervals , thereby reducing the density of solder joints, thereby reducing the operating cost of the connection structure 10 .
[0137] Correspondingly, it can be understood that the second workpiece 12 is further provided with a connecting groove 122 for accommodating the second welding portion 17 . The connection relationship between the second welding portion 17 and the components in the first workpiece 11 and the second workpiece 12 is the same as or similar to that of the first welding portion 13 , and details are not repeated here.
[0138] In some embodiments, see figure 2 , the connection structure 10 also includes a component 18 . The component 18 is arranged in the first workpiece 11 .
[0139] Wherein, the component 18 is not limited to a battery, a chip, or the like.
[0140] In some embodiments, see figure 2 , the first workpiece body 112 is provided with a receiving groove 1121 . The receiving groove 1121 is used for receiving the component 18 . It can be understood that the number and shape of the receiving grooves 1121 are not limited, and can be adaptively adjusted according to the number and shape of the components 18 . The number of the receiving grooves 1121 can be one, two, three, four and so on. The shape of the receiving groove 1121 can be a regular shape such as a rectangle, a circle, or other irregular shapes.
[0141] In further embodiments, see figure 1 and figure 2 , the first welding part 13 is also used to form a heat dissipation channel 131 . The heat dissipation channel 131 is used for transferring the heat generated by the component 18 .
[0142] understandable, see figure 1 , figure 2 and Figure 5 , the heat generated by the component 18 is sequentially transferred from the first workpiece body 112 to the first welding part 13 connected with the first workpiece body 112 and the second workpiece 12 connected with the first welding part 13 , Therefore, the heat generated by the component 18 is conducted out of the connection structure 10 to realize the heat dissipation of the component 18 . The heat dissipation channel 131 is formed by the transfer path of the heat generated by the component 18 .
[0143] In addition, see figure 2 and image 3 , because the bonding portion 14 is filled between the third gap 127, and due to the thermal insulation properties of the bonding portion 14, the heat generated by the component 18 cannot be transferred to the second workpiece 12 through the bonding portion 14, In this way, the region of the first workpiece 11 and the region of the second workpiece 12 corresponding to the third gap 127 filled with the bonding portion 14 constitute the thermal insulation area 128 . Therefore, the heat insulation area 128 can be used as a accommodating space for those components 18 that are not heat-resistant, so as to avoid the problem that the components 18 that are not heat-resistant are damaged due to high temperature.
[0144] In some embodiments, before step S1, the method for connecting workpieces further includes:
[0145] Step S7: see figure 1 and figure 2 , and the heat absorbing portion 19 is formed on the first workpiece 11 . The heat absorbing portion 19 is connected to the first welding portion 13 .
[0146] Wherein, the heat absorption part 19 is not limited to be a heat conduction grid.
[0147] In some embodiments, see figure 1 , figure 2 and Figure 5 , the heat absorbing portion 19 is disposed on the connecting portion 113 and is connected to the first welding portion 13 . In this way, through the disposition of the heat absorbing portion 19 , the heat generated by the component 18 can be directionally transferred to the second workpiece 12 , so as to assist the component 18 to better dissipate heat.
[0148] In other embodiments, step S7 can be placed after any step in S1-S6, which is not limited here.
[0149] In some embodiments, see Figure 7 , the second workpiece 12 includes a first subsection 12a and a second subsection 12b. The second subsection 12b is connected to the first subsection 12a and is located between the first subsection 12a and the first workpiece 11 . Wherein, the connecting groove 122 is provided in the second sub-section 12b.
[0150] In some embodiments, the first subsection 12a is used as the outer layer of the second workpiece 12, the selected material is stainless steel or titanium with higher hardness, and the second subsection 12b is used as the inner layer of the second workpiece 12 , the selected material is light-weight aluminum, which can not only reduce the overall weight of the connecting structure 10 , but also ensure the hardness and wear resistance of the outer surface of the connecting structure 10 .
[0151] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as the preferred embodiments as described above, it is not intended to limit the present application. Without departing from the scope of the technical solution of the present application, when the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments with equivalent changes, provided that the content of the technical solution of the present application is not deviated from, the technical essence of the present application shall be Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present application.

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