Connecting structure and method for connecting workpieces

Abstract

A connection structure includes a first workpiece, a second workpiece, a first welding portion and an adhesive portion. The first welding portion is provided between the first workpiece and the second workpiece, and is used to connect the first workpiece and the second workpiece. The adhesive portion covers the first welding portion and is used to connect the first workpiece and the second workpiece. The connection structure of the present application has an aesthetic appearance and a stable structure. The present application also provides a method for connecting workpieces.

Description

Technical Field

[0001] The present application relates to a connection structure and a method for connecting workpieces. Background Art

[0002] At present, the middle plate and the middle frame of electronic products are mostly connected by direct welding. However, there are some problems with this operation: (1) When the middle plate and the middle frame are welded together, the density of the welding points is high, which greatly increases the operation cost; (2) If the melting point of the middle plate and / or the middle frame is low, after welding the middle plate and the middle frame, the surface of the middle plate and / or the middle frame will leave a melting groove, which affects the appearance. Summary of the invention

[0003] In view of this, it is necessary to provide a connection structure with stable structure and beautiful appearance.

[0004] The present application also provides a method for connecting workpieces.

[0005] A connection structure includes a first workpiece, a second workpiece, a first welding portion and an adhesive portion. The first welding portion is provided between the first workpiece and the second workpiece and is used to connect the first workpiece and the second workpiece. The adhesive portion covers the first welding portion and is used to connect the first workpiece and the second workpiece.

[0006] In some embodiments, the first workpiece includes a first connecting portion; the second workpiece includes a second connecting portion, and the second connecting portion is connected to the first connecting portion through the first welding portion.

[0007] In some embodiments, a connecting groove is provided on the second workpiece, and the second connecting portion is provided in the connecting groove and is used to accommodate the first connecting portion; the first welding portion is provided in the connecting groove and is used to connect the first connecting portion and the second connecting portion.

[0008] In some embodiments, the surface surrounding the connecting groove and the portion extending toward the first workpiece and the second workpiece are provided with at least one hole; the connecting structure further includes a reinforcing portion connected to the adhesive portion for filling the at least one hole.

[0009] In some embodiments, the connecting groove also includes a first side and a second side, the first side is connected to the second connecting portion; the second side is connected to the first side and the second connecting portion, and a groove is provided in the junction area between the second side and the first side; the adhesive portion is also filled in the groove.

[0010] In some embodiments, the angle between the first side surface and the second connecting portion is a, and a ranges from 60° to 80°.

[0011] In some embodiments, the connection structure further includes a second welding portion, which is disposed between the first workpiece and the second workpiece and spaced apart from the first welding portion for connecting the first workpiece and the second workpiece; the adhesive portion is further used to cover the second welding portion.

[0012] In some embodiments, the connection structure further includes components, and the components are arranged in the first workpiece; the first welding portion is also used to form a heat dissipation channel, and the heat dissipation channel is used to transfer heat generated by the components.

[0013] In some embodiments, the connection structure further includes a heat absorbing portion, which is disposed on the first workpiece and connected to the first welding portion.

[0014] In some embodiments, the second workpiece is made of at least one of aluminum, stainless steel, and titanium.

[0015] In some embodiments, the second workpiece includes a first section and a second section, the second section is connected to the first section and is located between the first section and the first workpiece; and the connecting groove is disposed in the second section.

[0016] A method for connecting workpieces is used to connect a first workpiece and a second workpiece, wherein the first workpiece includes a first connecting portion, and the second workpiece includes a second connecting portion. The method for connecting workpieces includes: laser welding the first connecting portion and the second connecting portion to form a first welding portion, wherein the first welding portion is used to connect the first workpiece and the second workpiece; and forming an adhesive portion, wherein the adhesive portion covers the first welding portion and is used to connect the first workpiece and the second workpiece.

[0017] In some embodiments, the laser welding method of the first connection part and the second connection part is pulse laser welding, and the processing focal length is +1.0 mm to +2.0 mm.

[0018] In some embodiments, the method of connecting workpieces further includes: forming at least one hole in the first workpiece and the second workpiece; and forming a reinforcing portion, the reinforcing portion being connected to the bonding portion and used to fill the at least one hole.

[0019] In some embodiments, the method of connecting workpieces further includes: opening a connecting groove on the second workpiece, the connecting groove being provided with the second connecting portion, and the first connecting portion being accommodated in the connecting groove; wherein the step of laser welding the first connecting portion and the second connecting portion further includes: forming the first welding portion in the connecting groove; wherein the step of forming the bonding portion further includes: the bonding portion also fills the connecting groove.

[0020] In some embodiments, the connecting groove also includes a first side and a second side connecting the second connecting portion, and the first side is connected to the second side; the method of connecting workpieces also includes: opening a groove in the intersection area of ​​the first side and the second side; wherein the step of forming the bonding portion also includes: the bonding portion is also filled in the groove.

[0021] In some embodiments, the method of connecting workpieces further includes: forming a heat absorbing portion on the first workpiece, wherein the heat absorbing portion is connected to the first welding portion.

[0022] In some embodiments, the second workpiece is made of at least one of aluminum, stainless steel, and titanium.

[0023] In the present application, the connection structure realizes the connection between the first workpiece and the second workpiece by means of the synergistic effect of the first welding part and the bonding part, thereby greatly improving the bonding force between the first workpiece and the second workpiece, and effectively improving the structural stability of the connection structure. In addition, by means of the bonding part covering the first welding part, the aesthetics of the connection structure is also effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the connection structure of some embodiments of the present application.

[0025] Figure 2 for Figure 1 A schematic structural diagram of the connection structure shown in another perspective.

[0026] Figure 3 This is a partial structural schematic diagram of the first workpiece and the second workpiece in some embodiments of the present application.

[0027] Figure 4 This is a schematic diagram of the partial structure of the second workpiece in some embodiments of the present application.

[0028] Figure 5 This is a schematic diagram of the partial structure of the first workpiece in some embodiments of the present application.

[0029] Figure 6 It is a partial cross-sectional schematic diagram of a first workpiece, a bonding portion, and a second workpiece in some embodiments of the present application.

[0030] Figure 7 For along Figure 1 A partial cross-sectional schematic diagram along line VII-VII is shown.

[0031] Figure 8 This is a flow chart of a method for connecting workpieces according to some embodiments of the present application.

[0032] Main component symbols

[0033] Connection structure 10

[0034] First workpiece 11

[0035] The first connection portion 111

[0036] First workpiece body 112

[0037] Storage tank 1121

[0038] Connecting part 113

[0039] The second workpiece 12

[0040] First Division 12a

[0041] Section 212b

[0042] The second connection portion 121

[0043] Connection slot 122

[0044] First side 1221

[0045] Second side 1222

[0046] First gap 123

[0047] Second gap 124

[0048] Groove 125

[0049] Protrusion 126

[0050] Third Gap 127

[0051] Insulation area 128

[0052] First welding portion 13

[0053] Heat dissipation channel 131

[0054] Adhesive portion 14

[0055] Reinforcement section 141

[0056] Step groove 15

[0057] Hole 16

[0058] Second welding portion 17

[0059] Components 18

[0060] Heat absorbing part 19

[0061] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0064] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0065] See also 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 portion 13 is provided between the first workpiece 11 and the second workpiece 12, and is used to connect the first workpiece 11 and the second workpiece 12. The bonding portion 14 covers the first welding portion 13, and is used to connect the first workpiece 11 and the second workpiece 12.

[0066] The connection structure 10 is not limited to being applied to mobile phones, tablet computers, wearable electronic devices, etc.

[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 portion 13 and the bonding portion 14, thereby greatly improving the bonding force between the first workpiece 11 and the second workpiece 12, and effectively improving the structural stability of the connection structure 10. In addition, by means of the bonding portion 14 covering the first welding portion 13, the aesthetics of the connection structure 10 is also effectively improved.

[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 also Figure 1 , Figure 3 and Figure 4The first workpiece 11 includes a first connection portion 111. The second workpiece 12 includes a second connection portion 121. The second connection portion 121 is connected to the first connection 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 is protruded from an 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 in 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 thickness difference 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 step-shaped structure. That is, the connecting portion 113 and the first connecting portion 111 together form a step groove 15. Among them, the bonding portion 14 covering the first welding portion 13 is also located in the step groove 15.

[0074] Understandably, see Figure 1 and Figure 5 The step groove 15 provides a receiving space for the adhesive portion 14 covering the first welding portion 13, so as to effectively prevent the adhesive portion 14 covering the first welding portion 13 from protruding relative to each workpiece (for example, the first workpiece 11 and / or the second workpiece 12) and affecting the aesthetics of the connection structure 10. In addition, the step groove 15 can also increase the bonding area between the adhesive 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 manufactured by integral molding.

[0076] See also Figure 1 , Figure 3 and Figure 4The second workpiece 12 is provided with a connecting groove 122 for receiving 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 Figure 6 , the surface surrounding the connection groove 122, the portion extending toward the first workpiece 11 and the second workpiece 12 is provided with at least one hole 16. The connection structure 10 also includes a reinforcing portion 141. The reinforcing portion 141 is connected to the bonding portion 14 to fill 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 improved.

[0078] It can be understood that in other embodiments, the hole 16 and the reinforcement portion 141 can be omitted.

[0079] See also Figure 4 The connection slot 122 includes a first side surface 1221 and a second side surface 1222. The first side surface 1221 is connected to the second connection portion 121. The second side surface 1222 is connected to the first side surface 1221 and the second connection portion 121.

[0080] In some embodiments, see Figure 1 and see Figure 3 The first connection portion 111 is spaced apart from the second side surface 1222 on one side facing the second side surface 1222 to form a first gap 123. The first connection portion 111 is spaced apart from the first side surface 1221 on one side facing the first side surface 1221 to form a second gap 124. The first gap 123 is connected to the second gap 124. The adhesive portion 14 is also filled in the first gap 123 and the second gap 124 to further strengthen the bonding strength between the first workpiece 11 and the second workpiece 12.

[0081] In some embodiments, see Figure 1 and see Figure 3 A groove 125 is provided at the junction area between the second side surface 1222 and the first side surface 1221. The bonding portion 14 is also filled in the groove 125. The groove 125, the first gap 123 and the second gap 124 are connected to each other.

[0082] It can be understood that, with the structural design of the groove 125 , the bonding portion 14 is further filled in the groove 125 , thereby strengthening the connection between the bonding portion 14 and the second workpiece 12 , thereby effectively improving the bonding strength between the first 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 may be omitted according to actual needs.

[0084] In some embodiments, see Figure 4 The angle between the first side surface 1221 and the second connecting portion 121 is a, and the range of a is 60° to 80°.

[0085] In some embodiments, see Figure 3 The second workpiece 12 further includes a protruding portion 126 disposed on the second side surface 1222. The protruding portion 126 protrudes from the second side surface 1222 toward the first workpiece 11 and protrudes relative to the second workpiece 12. Part of the side surface of the protruding portion 126 can serve as the first side surface 1221 of the connecting groove 122.

[0086] In this embodiment, see Figure 1 and Figure 3 The side of the protrusion 126 facing the first workpiece 11 is spaced apart from the side of the first workpiece 11 facing the protrusion 126 to form a third gap 127. The third gap 127 is connected to 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 is understood that in other embodiments, the third gap 127 can be omitted according to actual conditions. Then, when the third gap 127 does not exist, the protrusion 126 and the first workpiece 11 are not limited to being connected by welding, clamping, etc.

[0088] In some embodiments, see Figure 1 The connection structure 10 further 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, and is used to connect the first workpiece 11 and the second workpiece 12. The bonding portion 14 further covers the second welding portion 17.

[0089] Among them, in the present application, with the help of the setting of the bonding part 14, while ensuring the connection strength between the first workpiece 11 and the second workpiece 12, the first welding part 13 and the second welding part 17 are set at intervals, thereby reducing the density of welding points and reducing the operating cost of the connection structure 10.

[0090] Accordingly, it can be understood that the second workpiece 12 is also provided with a connection groove 122 for accommodating the second welding portion 17. The connection relationship between the second welding portion 17 and the components of the first workpiece 11 and the second workpiece 12 is the same or similar to that of the first welding portion 13, and will not be repeated here.

[0091] In some embodiments, see Figure 2 The connection structure 10 further includes a component 18. The component 18 is disposed in the first workpiece 11.

[0092] The components 18 are not limited to batteries, chips, etc.

[0093] In some embodiments, see Figure 2 , a receiving groove 1121 is provided on the first workpiece body 112. The receiving groove 1121 is used to receive 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, etc. The shape of the receiving groove 1121 can be a regular shape such as a rectangle, a circle, or other irregular shapes.

[0094] In a further embodiment, see Figure 1 and Figure 2 The first welding portion 13 is also used to form a heat dissipation channel 131. The heat dissipation channel 131 is used to transfer the heat generated by the component 18.

[0095] Understandably, 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 portion 13 connected to the first workpiece body 112 and the second workpiece 12 connected to the first welding portion 13, thereby conducting the heat generated by the component 18 out of the connection structure 10 to achieve heat dissipation of the component 18. The heat transfer path of the heat generated by the component 18 forms the heat dissipation channel 131.

[0096] In addition, see Figure 2 and Figure 3 Since the bonding portion 14 is filled between the third gaps 127 and due to the heat-insulating property 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, so the first workpiece 11 area and the second workpiece 12 area corresponding to the third gap 127 filled with the bonding portion 14 constitute a heat-insulating area 128. Therefore, the heat-insulating area 128 can be used as a storage space for those heat-sensitive components 18 to avoid the problem of heat-sensitive components 18 being damaged by high temperature.

[0097] In some embodiments, see Figure 1 and Figure 2 The connection structure 10 further includes a heat absorbing portion 19. The heat absorbing portion 19 is disposed on the first workpiece 11 and connected to the first welding portion 13. The heat absorbing portion 19 is not limited to being a heat conducting grid.

[0098] In some embodiments, see Figure 1 , Figure 2 and Figure 5 The heat absorbing portion 19 is disposed at the connecting portion 113 and connected to the first welding portion 13. Thus, through the arrangement of the heat absorbing portion 19, the heat generated by the component 18 can be directed to the second workpiece 12 to assist the component 18 in better heat dissipation.

[0099] In some embodiments, see Figure 7 The second workpiece 12 includes a first section 12a and a second section 12b. The second section 12b is connected to the first section 12a and is located between the first section 12a and the first workpiece 11. The connecting groove 122 is disposed in the second section 12b.

[0100] In some embodiments, the first division 12a serves as the outer layer of the second workpiece 12, and the selected material is stainless steel or titanium with higher hardness. The second division 12b serves as the inner layer of the second workpiece 12, and the selected material is aluminum with lighter weight. This can reduce the overall weight of the connection structure 10 while ensuring the hardness and wear resistance of the outer surface of the connection structure 10.

[0101] See also Figure 8 Some embodiments of the present application also provide a method for connecting workpieces, for connecting a first workpiece 11 and a 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 for connecting workpieces includes:

[0102] Step S1: See Figure 1 , Figure 3 and Figure 4 The first connection portion 111 and the second connection portion 121 are laser welded to form a first welding portion 13. The first welding portion 13 is used to connect the first workpiece 11 and the second workpiece 12.

[0103] In some embodiments, the laser welding method of the first connection part 111 and the second connection part 121 is pulse laser welding. The power of the laser welding of the first connection part 111 and the second connection part 121 is 1380W, the welding speed is 50mm / s, the jump speed is 100mm / s, the welding delay is 90us, the jump delay is 100us, the laser on delay is -100um, the laser off delay is 40us, and the processing focal length is +1.0mm to +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 , which covers the first welding portion 13 and is used to connect 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 is protruded from an 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 in 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 thickness difference 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 step-shaped structure. That is, the connecting portion 113 and the first connecting portion 111 together form a step groove 15. Among them, the bonding portion 14 covering the first welding portion 13 is also located in the step groove 15.

[0110] Understandably, see Figure 1 and Figure 5The step groove 15 provides a receiving space for the adhesive portion 14 covering the first welding portion 13, so as to effectively prevent the adhesive portion 14 covering the first welding portion 13 from protruding relative to each workpiece (for example, the first workpiece 11 and / or the second workpiece 12) and affecting the aesthetics of the connection structure 10. In addition, the step groove 15 can also increase the bonding area between the adhesive 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 manufactured by integral molding.

[0112] In some embodiments, before step S2, the method for connecting workpieces further includes:

[0113] Step S3: See Figure 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 Figure 6 , forming a reinforcing portion 141 , which is connected to the bonding portion 14 and is used to fill the at least one hole 16 .

[0116] In some embodiments, the hole 16 may be formed on the first workpiece 11 and the second workpiece 12 first, and then filled with the bonding portion 14 , so that the reinforcing portion 141 is a part of the bonding portion 14 .

[0117] In this way, by means of the cooperation between the reinforcement portion 141 and the hole 16 , the bonding force between the first workpiece 11 and the second workpiece 12 is further improved.

[0118] It can be understood that in other embodiments, step S3 and step S4 can be omitted according to actual needs.

[0119] In some embodiments, before step S2, the method for connecting workpieces further comprises:

[0120] Step S5: See Figure 1 , Figure 3 and Figure 4 A connecting groove 122 is formed on the second workpiece 12 . The second connecting portion 121 is disposed on the connecting groove 122 , and the first connecting portion 111 is received 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 also includes: the bonding portion 14 further fills the connecting groove 122 .

[0123] See also Figure 4 The connection slot 122 includes a first side surface 1221 and a second side surface 1222. The first side surface 1221 is connected to the second connection portion 121. The second side surface 1222 is connected to the first side surface 1221 and the second connection portion 121.

[0124] In some embodiments, the angle between the first side surface 1221 and the second connection portion 121 is a, and the range of a is 60° to 80°.

[0125] In some embodiments, see Figure 1 and see Figure 3 The first connection portion 111 is spaced apart from the second side surface 1222 on one side facing the second side surface 1222 to form a first gap 123. The first connection portion 111 is spaced apart from the first side surface 1221 on one side facing the first side surface 1221 to form a second gap 124. The first gap 123 is connected to the second gap 124. The adhesive portion 14 is also filled in the first gap 123 and the second gap 124 to further strengthen the bonding strength between 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 needs.

[0127] In some embodiments, after step S5, the method for connecting workpieces further includes:

[0128] Step S6: See Figure 1 and see Figure 3 A groove 125 is defined in the junction area between the first side surface 1221 and the second side surface 1222 .

[0129] Wherein, step S2 further includes: the adhesive portion 14 is further filled into the groove 125 .

[0130] It can be understood that, with the structural design of the groove 125 , the bonding portion 14 is further filled in the groove 125 , thereby strengthening the connection between the bonding portion 14 and the second workpiece 12 , thereby effectively improving the bonding strength between the first workpiece 11 and the second workpiece 12 .

[0131] In other embodiments, the groove 125 can be omitted according to actual needs.

[0132] In some embodiments, see Figure 3The second workpiece 12 further includes a protruding portion 126 disposed on the second side surface 1222. The protruding portion 126 protrudes from the second side surface 1222 toward the first workpiece 11 and protrudes relative to the second workpiece 12. Part of the side surface of the protruding portion 126 can serve as the first side surface 1221 of the connecting groove 122.

[0133] In this embodiment, see Figure 1 and Figure 3 The side of the protrusion 126 facing the first workpiece 11 is spaced apart from the side of the first workpiece 11 facing the protrusion 126 to form a third gap 127. The third gap 127 is connected to 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 is understood that in other embodiments, the third gap 127 can be omitted according to actual conditions. Then, when the third gap 127 does not exist, the protrusion 126 and the first workpiece 11 are not limited to being connected by welding, clamping, etc.

[0135] In some embodiments, see Figure 1 The connection structure 10 further 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, and is used to connect the first workpiece 11 and the second workpiece 12. The bonding portion 14 further covers the second welding portion 17.

[0136] Among them, in the present application, with the help of the setting of the bonding part 14, while ensuring the connection strength between the first workpiece 11 and the second workpiece 12, the first welding part 13 and the second welding part 17 are set at intervals, thereby reducing the density of welding points and reducing the operating cost of the connection structure 10.

[0137] Accordingly, it can be understood that the second workpiece 12 is also provided with a connection groove 122 for accommodating the second welding portion 17. The connection relationship between the second welding portion 17 and the components of the first workpiece 11 and the second workpiece 12 is the same or similar to that of the first welding portion 13, and will not be repeated here.

[0138] In some embodiments, see Figure 2 The connection structure 10 further includes a component 18. The component 18 is disposed in the first workpiece 11.

[0139] The components 18 are not limited to batteries, chips, etc.

[0140] In some embodiments, see Figure 2, a receiving groove 1121 is provided on the first workpiece body 112. The receiving groove 1121 is used to receive 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, etc. The shape of the receiving groove 1121 can be a regular shape such as a rectangle, a circle, or other irregular shapes.

[0141] In a further embodiment, see Figure 1 and Figure 2 The first welding portion 13 is also used to form a heat dissipation channel 131. The heat dissipation channel 131 is used to transfer the heat generated by the component 18.

[0142] Understandably, 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 portion 13 connected to the first workpiece body 112 and the second workpiece 12 connected to the first welding portion 13, thereby conducting the heat generated by the component 18 out of the connection structure 10 to achieve heat dissipation of the component 18. The heat transfer path of the heat generated by the component 18 forms the heat dissipation channel 131.

[0143] In addition, see Figure 2 and Figure 3 Since the bonding portion 14 is filled between the third gaps 127 and due to the heat-insulating property 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, so the first workpiece 11 area and the second workpiece 12 area corresponding to the third gap 127 filled with the bonding portion 14 constitute a heat-insulating area 128. Therefore, the heat-insulating area 128 can be used as a storage space for those heat-sensitive components 18 to avoid the problem of heat-sensitive components 18 being damaged by 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 A 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] The heat absorbing portion 19 is not limited to being a heat conductive grid.

[0147] In some embodiments, see Figure 1 , Figure 2 and Figure 5The heat absorbing portion 19 is disposed at the connecting portion 113 and connected to the first welding portion 13. Thus, through the arrangement of the heat absorbing portion 19, the heat generated by the component 18 can be directed to the second workpiece 12 to assist the component 18 in better heat dissipation.

[0148] In other implementations, step S7 may 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 section 12a and a second section 12b. The second section 12b is connected to the first section 12a and is located between the first section 12a and the first workpiece 11. The connecting groove 122 is disposed in the second section 12b.

[0150] In some embodiments, the first division 12a serves as the outer layer of the second workpiece 12, and the selected material is stainless steel or titanium with higher hardness. The second division 12b serves as the inner layer of the second workpiece 12, and the selected material is aluminum with lighter weight. This can reduce the overall weight of the connection structure 10 while ensuring the hardness and wear resistance of the outer surface of the connection structure 10.

[0151] The above is only a preferred implementation mode of the present application, and is not any form of limitation on the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A connection structure, comprising: a first workpiece and a second workpiece; A first welding portion, provided between the first workpiece and the second workpiece, for connecting the first workpiece and the second workpiece; and a bonding portion, covering the first welding portion, and used to connect the first workpiece and the second workpiece; Wherein, the first workpiece comprises a first connecting portion, a first workpiece body and a connecting portion, the connecting portion is connected between the first connecting portion and the first workpiece body, the connecting portion and the first connecting portion form a step groove; the bonding portion is located in the step groove; the thickness of the connecting portion is greater than the thickness of the first connecting portion; The second workpiece includes a second connection portion, and the second connection portion is connected to the first connection portion through the first welding portion; The second workpiece is provided with a connecting groove, the second connecting portion is arranged in the connecting groove, and the connecting groove is used to accommodate the first connecting portion; The surface surrounding the connection groove, the portion extending toward the first workpiece and the second workpiece is provided with at least one hole; the connection structure reinforcement portion, the reinforcement portion is connected to the bonding portion, and the reinforcement portion is used to fill the at least one hole; The connecting slot also includes: a first side surface connected to the second connecting portion; A second side surface is connected to the first side surface and the second connecting portion, and a groove is provided in the intersection area with the first side surface; The bonding portion is also filled in the groove.

2. The connection structure according to claim 1, wherein: The second workpiece is provided with The first welding portion is disposed in the connecting groove, and is used to connect the first connecting portion and the second connecting portion.

3. The connection structure according to claim 1, wherein: The angle between the first side surface and the second connecting portion is a, and the range of a is 60° to 80°.

4. The connection structure according to any one of claims 1 to 2, wherein: The connection structure further comprises: A second welding portion is provided between the first workpiece and the second workpiece and is spaced apart from the first welding portion, and is used to connect the first workpiece and the second workpiece; The bonding portion is further used to cover the second welding portion.

5. The connection structure according to any one of claims 1 to 2, wherein: The connection structure further comprises: Components, disposed in the first workpiece; The first welding portion is also used to form a heat dissipation channel, and the heat dissipation channel is used to transfer the heat generated by the component.

6. The connection structure according to claim 1, wherein: The connection structure further comprises: The heat absorbing part is arranged on the first workpiece and connected to the first welding part.

7. The connection structure according to any one of claims 1 to 2, wherein: The material of the second workpiece is at least one of aluminum, stainless steel and titanium.

8. The connection structure according to claim 1, wherein: The second workpiece comprises: Division I; a second subdivision connected to the first subdivision and located between the first subdivision and the first workpiece; The connecting groove is arranged in the second subsection.

9. A method for connecting workpieces, for connecting a first workpiece and a second workpiece, wherein: The first workpiece includes a first connecting portion, a first workpiece body and a connecting portion, wherein the connecting portion is connected between the first connecting portion and the first workpiece body, and the connecting portion and the first connecting portion form a step groove; the thickness of the connecting portion is greater than the thickness of the first connecting portion, and the second workpiece includes a second connecting portion. The method for connecting workpieces includes: Laser welding the first connection portion and the second connection portion to form a first welding portion, wherein the first welding portion is used to connect the first workpiece and the second workpiece; and forming a bonding portion, the bonding portion covering the first welding portion and used for connecting the first workpiece and the second workpiece, the bonding portion being located in the step groove; The method of connecting workpieces further comprises: forming at least one hole in the first workpiece and the second workpiece; forming a reinforcing portion, the reinforcing portion being connected to the bonding portion and used to fill the at least one hole; the method for connecting workpieces further comprises: A connecting groove is formed on the second workpiece, the second connecting portion is provided on the connecting groove, and the first connecting portion is received in the connecting groove; The connecting groove further includes a first side surface and a second side surface connected to the second connecting portion, and the first side surface is connected to the second side surface; the method for connecting workpieces further includes: A groove is formed at the junction area between the first side surface and the second side surface; The step of forming the bonding portion further includes: the bonding portion is also filled in the groove.

10. The method for joining workpieces according to claim 9, wherein: The laser welding method of the first connecting part and the second connecting part is pulse laser welding, and the processing focal length is +1.0mm~+2.0mm.

11. The method for connecting workpieces according to claim 9 or 10, wherein: The step of laser welding the first connection portion and the second connection portion further includes: forming the first welding portion in the connection groove; The step of forming the bonding portion further includes: the bonding portion also fills the connecting groove.

12. The method for connecting workpieces according to claim 9 or 10, wherein: The method for connecting workpieces further includes: forming a heat absorbing portion on the first workpiece, wherein the heat absorbing portion is connected to the first welding portion.

13. The method for connecting workpieces according to claim 9 or 10, wherein: The material of the second workpiece is at least one of aluminum, stainless steel and titanium.

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