Connection structure and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of mechanical connection, and provides a connection structure and electronic equipment. The connecting structure comprises a first structural part, a screwing part, a second structural part and a locking part. The screw joint piece is embedded in the first structural piece, and a threaded hole is formed in the screw joint piece. Counterbores are formed in the positions, corresponding to the threaded holes, of the second structural part. The locking piece comprises a connecting part and a pressing part connected with the connecting part. The connecting part penetrates through the counterbore and is in threaded connection with the threaded connection piece in the threaded hole, so that the first structural piece and the second structural piece are connected in a fastened mode. And the pressing part is accommodated in the counterbore. The threaded connection piece comprises a first guide face, the second structural piece comprises a second guide face, the first guide face surrounds the threaded hole and inclines relative to the axial direction of the threaded hole, the second guide face surrounds the counterbore and inclines relative to the axial direction of the counterbore, and the second guide face is matched with the first guide face so that the counterbore and the threaded hole can be concentric, and the pressing part and the counterbore can be coaxial.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical connection, and in particular to a connection structure and an electronic device. Background Art

[0002] In existing electronic devices, two structural parts (such as a housing and a bracket inside the housing) are usually connected by the following connection structure: a countersunk hole is provided on the housing, a nut is embedded on the bracket, and a countersunk screw passes through the countersunk hole and is screwed with the nut, thereby achieving a fastened connection between the housing and the bracket. However, in the above connection structure, after the countersunk screw and the nut are locked, there is a misalignment problem between the nut of the countersunk screw and the countersunk hole, which affects the appearance refinement of the electronic device. In addition, during the locking process of the countersunk screw and the nut, the misaligned countersunk screw may also scratch or scratch the surface of the housing at the countersunk hole, thereby affecting the appearance refinement of the electronic device. Utility Model Content

[0003] The first aspect of the present application provides a connection structure. The connection structure includes a first structural member, a screw connection member, a second structural member and a locking member. The screw connection member is embedded in the first structural member, and the screw connection member is provided with a threaded hole. The second structural member is provided with a countersunk hole corresponding to the threaded hole. The locking member includes a connecting portion and a clamping portion connected to the connecting portion. The connecting portion passes through the countersunk hole and is screwed with the screw connection member in the threaded hole, so that the first structural member and the second structural member are tightly connected. The clamping portion is accommodated in the countersunk hole. The screw connection member includes a first guide surface, and the second structural member includes a second guide surface. The first guide surface surrounds the threaded hole and is inclined relative to the axial direction of the threaded hole, the second guide surface surrounds the countersunk hole and is inclined relative to the axial direction of the countersunk hole, and the second guide surface is adapted to the first guide surface so that the countersunk hole is concentric with the threaded hole, and the clamping portion is coaxial with the countersunk hole.

[0004] The connection structure of the embodiment of the present application is provided with a first guide surface on the screw-connector and a second guide surface on the second structural member. During the locking process of the locking member and the screw-connector, the second guide surface cooperates with the first guide surface to perform guidance and positioning, which is beneficial to improving the concentricity of the countersunk hole on the second structural member and the threaded hole of the screw-connector, and further beneficial to ensuring the coaxiality of the clamping portion of the locking member and the countersunk hole on the first structural member, and ultimately beneficial to solving the problem of misalignment between the clamping portion of the locking member and the countersunk hole, and the problem of the clamping portion of the locking member scratching or scratching the surface of the second structural member due to the misalignment problem, resulting in poor appearance of the second structural member.

[0005] In some embodiments, the first guide surface is configured as a conical surface that gradually contracts toward the second structural member, and the second guide surface is configured as a conical surface that gradually expands toward the screw-connecting member. In this way, by utilizing the self-centering characteristic of the conical surface, when the locking member and the screw-connecting member are fastened, the gradually contracting conical surface and the gradually expanding conical surface cooperate with each other, which is conducive to ensuring the concentricity of the threaded hole of the screw-connecting member and the countersunk hole of the second structural member.

[0006] In some embodiments, the first guide surface is configured as a conical surface that gradually expands toward the second structural member, and the second guide surface is configured as a conical surface that gradually contracts toward the screw-connecting member. In this way, by utilizing the self-centering characteristic of the conical surface, when the locking member and the screw-connecting member are fastened, the gradually contracting conical surface and the gradually expanding conical surface cooperate with each other, which is conducive to ensuring the concentricity of the threaded hole of the screw-connecting member and the countersunk hole of the second structural member.

[0007] In some embodiments, the screw connector includes an embedded portion and a protruding portion. The embedded portion is embedded in the first structural member and is formed with a threaded hole. The protruding portion is connected to the embedded portion and protrudes out of the first structural member. The first guide surface is formed on the protruding portion. In this way, by designing the screw connector to protrude out of the first structural member and forming the first guide surface on the protruding portion, on the one hand, the first guide surface is guided by the cooperation with the second guide surface on the second structural member, which is conducive to improving the assembly efficiency when the second structural member and the screw connector are assembled; on the other hand, the first guide surface of the screw connector is positioned by the cooperation with the second guide surface on the second structural member, which is conducive to achieving the concentric arrangement of the threaded hole of the screw connector and the countersunk hole on the second structural member, which is conducive to the uniform gap between the clamping portion of the locking member and the inner wall of the countersunk hole after the locking member and the screw connector are tightened.

[0008] In some embodiments, a first guide surface is formed on the end surface of the protrusion facing the second structural member, and the first guide surface is configured as a conical surface that gradually shrinks in the direction of the second structural member. A second guide surface is formed on the inner wall of the countersunk hole on the side facing the screw-on member, and the second guide surface is configured as a conical surface that gradually expands in the direction of the screw-on member. The second structural member is sleeved on the protrusion, and the first guide surface fits the second guide surface. In this way, by utilizing the self-centering characteristic of the conical surface, when the locking member and the screw-on member are tightened, the gradually shrinking conical surface and the gradually expanding conical surface cooperate with each other, which is conducive to ensuring the concentricity of the threaded hole of the screw-on member and the countersunk hole of the second structural member.

[0009] In some embodiments, the second structural member is recessed at the countersunk hole toward the screw-connecting member to form a sink. The sink is sleeved on the protruding portion and abuts against the first structural member. In this way, the second structural member is recessed at the countersunk hole toward the screw-connecting member to form a sink, which is conducive to reducing the thickness of the second structural member.

[0010] In some embodiments, the first structural member includes a protruding column protruding toward the second structural member. The embedded portion is embedded in the protruding column, the protruding portion extends beyond the protruding column, and the sink abuts against the protruding column. In this way, the connection strength between the first structural member and the second structural member can be further improved by the sink abutting against the protruding column.

[0011] In some embodiments, a first guide surface is formed on the end face of the protrusion facing the second structural member, and the first guide surface is configured as a conical surface that gradually expands in the direction of the second structural member. The second structural member is recessed at the countersunk hole toward the screw-in component to form a sink. The outer wall of the sink surrounding the countersunk hole forms a second guide surface on the side facing the screw-in component, and the second guide surface is configured as a conical surface that gradually shrinks in the direction of the screw-in component. The sink is embedded in the protrusion, and the first guide surface fits the second guide surface. In this way, by utilizing the self-centering characteristic of the conical surface, when the locking member and the screw-in component are tightened, the gradually shrinking conical surface and the gradually expanding conical surface cooperate with each other, which is beneficial to ensure the concentricity of the threaded hole of the screw-in component and the countersunk hole of the second structural member.

[0012] In some embodiments, a recessed groove communicating with the threaded hole is formed on the end surface of the protrusion facing the second structural member, the first guide surface is formed on the side wall of the recessed groove, and the recessed platform is received in the recessed groove. In this way, by receiving the recessed platform in the recessed groove and pressing the recessed platform against the bottom wall of the recessed groove, the connection strength between the first structural member and the second structural member can be further improved.

[0013] In some embodiments, the first structural member includes a boss protruding toward the second structural member. The embedded portion is embedded in the boss. In the radial direction of the threaded hole, the protruding portion includes a flange extending beyond the embedded portion, and the flange abuts against the boss. In this way, by providing a flange abutting against the boss on the protruding portion, after the locking member is locked with the screw connection member, the clamping portion of the locking member applies a tightening force to the flange and the boss of the protruding portion through the sink, which is conducive to improving the connection strength between the first structural member and the second structural member.

[0014] In some embodiments, the outer wall ring of the screw connection is provided with a protrusion, and the first structural member is formed with a groove adapted to the protrusion; and / or, the outer wall ring of the screw connection is provided with a groove, and the first structural member is formed with a protrusion adapted to the groove. In this way, the screw connection and the first structural member cooperate through the above-mentioned groove and protrusion, which is conducive to reducing the risk of the screw connection rotating during the tightening process of the locking member and the screw connection.

[0015] The second aspect of the present application provides an electronic device, which includes the connection structure of the first aspect of the present application, and the surface of the second structural member facing away from the first structural member is the appearance surface of the electronic device.

[0016] Since the electronic device according to the embodiment of the present application adopts the above-mentioned connection structure, the appearance of the electronic device is exquisite. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a partial schematic diagram of an electronic device according to the related art.

[0018] Figure 2 for Figure 1 Schematic diagram of the cross section along line II-II.

[0019] Figure 3 It is a schematic structural diagram of an electronic device according to the first embodiment of the present application.

[0020] Figure 4 for Figure 3 Schematic diagram of the cross section along line IV-IV.

[0021] Figure 5 It is a cross-sectional schematic diagram of an electronic device according to the second embodiment of the present application.

[0022] Description of main component symbols:

[0023] Electronic device 100, 1

[0024] Display 110

[0025] Host 120

[0026] Keyboard 130

[0027] Touch component 140

[0028] Connection structure 10, 20

[0029] First structural members 11, 21

[0030] The first ontology 111, 211

[0031] Boss 112, 212

[0032] Second structural members 12, 22

[0033] Second body 121, 221

[0034] Sunken Platform 122, 222

[0035] Countersunk hole 12h, 22h, 3h

[0036] Screw connection 13, 23

[0037] Threaded holes 13h, 23h, 6h

[0038] Embedding parts 131, 231

[0039] Protrusions 132, 232

[0040] Flange 232a

[0041] Sink G

[0042] First guide surface S1

[0043] Second guide surface S2

[0044] Locking member 14, 24

[0045] Connection parts 141, 241

[0046] Pressing parts 142, 242

[0047] The third structural member 15, 25

[0048] First shell 2

[0049] Second housing 3

[0050] Accommodating chamber 100C, 1C

[0051] Grooves r1, r2

[0052] Protrusions p1, p2

[0053] Countersunk screw 4

[0054] Step 4a

[0055] Bracket 5

[0056] Nut 6

[0057] Gap d DETAILED DESCRIPTION

[0058] Figure 1 The figure is a partial schematic diagram of an electronic device according to the related art. Figure 2 for Figure 1 Schematic diagram of the cross section along line II-II. Figure 1 and Figure 2 As shown, the electronic device 1 includes a first shell 2, a second shell 3, a countersunk screw 4, a bracket 5 and a nut 6. The electronic device 1 is a laptop computer. The first shell 2 is the upper cover (also called C shell) of the main body of the laptop computer, and the second shell 3 is the lower cover (also called D shell) of the main body of the laptop computer. The first shell 2 is usually also provided with a mounting hole for installing a keyboard and a touchpad assembly, and the first shell 2 and the second shell 3 are docked and enclosed to form a receiving chamber 1C. The bracket 5 is located in the receiving chamber 1C and is connected to the first shell 2. The bracket 5 can be used to support / carry a touchpad, etc. The nut 6 is embedded in the bracket 5 and is provided with a threaded hole 6h. The second shell 3 is provided with a countersunk hole 3h. The threaded section of the countersunk screw 4 passes through the countersunk hole 3h and is screwed with the nut 6 in the threaded hole 6h, thereby realizing a fastening connection between the bracket 5 and the second shell 3.

[0059] The inventor of the present application found that, since there is no limiting structure between the bracket 5 on the first housing 2 and the second housing 3 in the electronic device 1 of the related art, the bracket 5 and the countersunk screw 4 are basically aligned with the countersunk screw 4 and the countersunk hole 3h only by the size control of the threaded hole 6h of the nut 6 and the size control of the boss column (also called the screw column) on which the nut 6 is embedded on the bracket 5. In addition, the countersunk screw 4 is a stepped screw, and during the locking process of the countersunk screw 4 and the nut 6, the step 4a of the countersunk screw 4 is used for forced correction to align the threaded hole 6h with the countersunk screw 4.

[0060] In the above technical solution, in order to ensure that the countersunk screw 4 can be locked into the countersunk hole 3h under the limit state, the single-side gap d between the step 4a of the countersunk screw 4 and the countersunk hole 3h of the second shell 3 is not less than 0.1mm. Due to the existence of the single-side gap d, the countersunk screw 4 and the countersunk hole 3h of the second shell 3 cannot be completely aligned, and there is a problem of offset between the countersunk screw 4 and the countersunk hole 3h. Figure 1 This is manifested as poor concentricity between the head of the countersunk screw 4 and the countersunk hole 3h, or in other words, the gap between the head of the countersunk screw 4 and the inner wall of the countersunk hole 3h is uneven.

[0061] In addition, during the process of locking the countersunk screw 4 with the nut 6, the step 4a of the countersunk screw 4 will scratch the surface of the second housing 3 (or, scratch the step surface of the second housing 3 at the countersunk hole 3h). In the electronic device 1, the surface of the second housing 3 facing away from the first housing 2 is the appearance surface. Therefore, in the above technical solution, during the process of locking the countersunk screw 4 with the nut 6, the countersunk screw 4 will scratch the appearance surface of the second housing 3 at the countersunk hole 3h, causing the appearance surface of the second housing 3 to be worn and scratched.

[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. In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In the description of the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" is two or more than two. In the description of the embodiments of the present application, unless otherwise specified, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. In the description of the embodiments of the present application, unless otherwise specified, the term "and / or" includes any and all combinations of one or more related listed items. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0063] An embodiment of the present application provides a connection structure. The connection structure includes a first structural member, a screw connection member, a second structural member and a locking member. The screw connection member is embedded in the first structural member. The screw connection member is provided with a threaded hole. The second structural member is provided with a countersunk hole corresponding to the threaded hole. The locking member includes a connecting portion and a clamping portion connected to the connecting portion. The connecting portion passes through the countersunk hole and is screwed to the screw connection member in the threaded hole, so that the first structural member and the second structural member are tightly connected. The clamping portion is accommodated in the countersunk hole. The screw connection member includes a first guide surface, and the second structural member includes a second guide surface. The first guide surface surrounds the threaded hole and is inclined relative to the axial direction of the threaded hole. The second guide surface surrounds the countersunk hole and is inclined relative to the axial direction of the countersunk hole. The second guide surface is adapted to the first guide surface so that the countersunk hole is concentric with the threaded hole, and the clamping portion is coaxial with the countersunk hole.

[0064] The connection structure of the embodiment of the present application is provided with a first guide surface on the screw-connector and a second guide surface on the second structural member. During the locking process of the locking member and the screw-connector, the second guide surface cooperates with the first guide surface to perform guidance and positioning, which is beneficial to improving the concentricity of the countersunk hole on the second structural member and the threaded hole of the screw-connector, and further beneficial to ensuring the coaxiality of the clamping portion of the locking member and the countersunk hole on the first structural member, and ultimately beneficial to solving the problem of misalignment between the clamping portion of the locking member and the countersunk hole, and the problem of the clamping portion of the locking member scratching or scratching the surface of the second structural member due to the misalignment problem, resulting in poor appearance of the second structural member.

[0065] The embodiment of the present application also provides an electronic device. The electronic device includes the above-mentioned connection structure, and the surface of the second structural member facing away from the first structural member is the appearance surface of the electronic device. Since the electronic device of the embodiment of the present application adopts the above-mentioned connection structure, it is conducive to improving the exquisiteness of the appearance of the electronic device.

[0066] The following description will be made by taking a laptop computer as an example in which the electronic device to which the connection structure is applied. Specifically, in the connection structure, the first structural member is a bracket in the host of the laptop computer, and the second structural member is the lower cover of the host of the laptop computer. In other embodiments, the electronic device is not limited to a laptop computer. The connection structure can also be applied to other scenarios that require screw connection and have high requirements for the exquisite appearance after screw connection. For example, the electronic device can also be a household appliance (such as a television, a speaker, etc.), the second structural member is the housing of the household appliance, the first structural member can be a structural member in the household appliance that is screwed to the housing, and the structural member that is screwed to the housing can be another shell that is docked with the housing, or other components of the household appliance that are screwed to the housing.

[0067] Figure 3 Schematic diagram of the structure of the electronic device of the first embodiment of the present application. Figure 3 As shown, the electronic device 100 is a notebook computer and includes a display 110 , a host 120 , a keyboard 130 and a touch component 140 .

[0068] The display 110 is used to display images, videos, etc. The host 120 is used as the control center of the laptop computer, and is used to realize functions such as data storage, calculation, control, and signal conversion. The host 120 and the display 110 are rotatably connected. The laptop computer can switch between an open state and a closed state. The keyboard 130 and the touch component 140 are used to input instructions or data. The keyboard 130 and the touch component 140 are arranged on the host 120. When the laptop computer is in an open state, the display 110 is opened at a certain angle relative to the host 120. When the laptop computer is in a closed state, the display 110 covers the surface of the host 120 where the keyboard 130 and the touch component 140 are arranged.

[0069] The host 120 includes a connection structure 10 . Figure 4 for Figure 3 Schematic diagram of the cross section along line IV-IV. Figure 3 and Figure 4 The connection structure 10 includes a first structural member 11 , a second structural member 12 , a screw member 13 , a locking member 14 and a third structural member 15 .

[0070] Specifically, in this embodiment, the second structural member 12 and the third structural member 15 are two oppositely connected shells of the laptop computer host 120. The first structural member 11 is a bracket in the laptop computer, which can be used to support / carry a touch panel, etc.

[0071] More specifically, the second structural member 12 is a lower cover in the laptop computer host 120, that is, the second structural member 12 is a shell of the laptop computer host 120 that is away from the keyboard 130 and the touch component 140. The surface of the second structural member 12 that is away from the third structural member 15 is one of the appearance surfaces exposed to the outside of the electronic device 100.

[0072] The third structural member 15 is the upper cover of the main body 120 of the laptop computer, that is, the third structural member 15 is the shell of the main body 120 of the laptop computer with the keyboard 130 and the touch component 140. The third structural member 15 is docked with the second structural member 12 and encloses to form the accommodating cavity 100C. The first structural member 11 is located in the accommodating cavity 100C and is connected to the second structural member 15. It can be understood that the accommodating cavity 100C also accommodates structures such as a battery, a mainboard, and a fan.

[0073] The first structural member 11 and the second structural member 12 are fastened and connected by screwing the screw connection member 13 and the locking member 14. Specifically, the screw connection member 13 is a nut, and the locking member 14 is a screw. The screw connection member 13 is embedded in the first structural member 11 and is provided with a threaded hole 13h. The screw connection member 13 is provided with an internal thread on the wall surface of the threaded hole 13h. The second structural member 12 is provided with a countersunk hole 12h corresponding to the threaded hole 13h. The locking member 14 includes a connecting portion 141 and a clamping portion 142 connected to the connecting portion 141. The outer wall of the connecting portion 141 is provided with an external thread that is compatible with the internal thread of the screw connection member 13. The connecting portion 141 of the locking member 14 passes through the countersunk hole 12h and is screwed to the screw connection member 13 in the threaded hole 13h, so that the first structural member 11 and the second structural member 12 are fastened and connected. After the first structural member 11 is fastened to the second structural member 12, the pressing portion 142 is received in the countersunk hole 12h, and the pressing portion 142 abuts against the step surface of the countersunk hole 12h. By receiving the pressing portion 142 in the countersunk hole 12h, the pressing portion 142 is protected and the flatness of the second structural member 12 at this position is increased.

[0074] Figure 3 and Figure 4 Only one screw connection 13 embedded in the first structural member 11 and one countersunk hole 12h recessed in the second structural member 12 are shown. In the notebook computer, a plurality of screw connections 13 may be arranged at intervals on the first structural member 11, and a countersunk hole 12h is arranged on the second structural member 12 corresponding to each screw connection 13. At each countersunk hole 12h, there is a locking member 14 screwed to the corresponding screw connection 13, so that the first structural member 11 and the second structural member 12 are fastened and connected.

[0075] The following specifically describes how the structure of the connection structure 10 ensures the concentricity of the locking member 14 and the countersunk hole 12h of the second structural member 12; or, how the structure of the connection structure 10 avoids the situation where the pressing portion 142 of the locking member 14 and the countersunk hole 12h are misaligned.

[0076] Please continue reading Figure 4 The screw connection member 13 includes a first guide surface S1, which surrounds the threaded hole 13h and is inclined relative to the axial direction of the threaded hole 13h. The second structural member 12 includes a second guide surface S2, which surrounds the countersunk hole 12h and is inclined relative to the axial direction of the countersunk hole 12h.

[0077] When assembling the connection structure 10 , the second structure member 12 is first assembled with the screw connection member 13 , and then the locking member 14 is screwed with the screw connection member 13 in the countersunk hole 12 h to fasten the first structure member 11 and the second structure member 12 together.

[0078] Since the first guide surface S1 and the second guide surface S2 of the connection structure 10 both have a certain inclination, during the assembly of the second structural member 12 and the first structural member 11, the first guide surface S1 of the screw connection member 13 and the second guide surface S2 of the second structural member 12 cooperate with each other to achieve the purpose of correcting the concentricity of the countersunk hole 12h of the second structural member 12 and the threaded hole 13h of the screw connection member 13, so that after the locking member 14 is locked with the screw connection member 13, the pressing portion 142 of the locking member 14 is coaxial with the countersunk hole 12h, or in other words, the gap between the pressing portion 142 of the locking member 14 and the inner wall of the countersunk hole 12h is uniform. In this way, it is helpful to avoid the problem of the pressing portion 142 of the locking member 14 and the countersunk hole 12h of the second structural member 12 being offset.

[0079] In addition, in the laptop computer, the surface of the second structural member 12 that faces away from the third structural member 15 is the appearance surface of the laptop computer. After the locking member 14 and the screw member 13 are locked, the clamping portion 142 of the locking member 14 and the countersunk hole 12h of the second structural member 12 are not offset. Therefore, the connection structure 10 is also beneficial to improving the appearance refinement of the laptop computer.

[0080] In addition, since the clamping portion 142 of the locking member 14 is not offset from the countersunk hole 12h of the second structural member 12, the problem of scratching the appearance surface of the second structural member 12 due to the offset between the clamping portion 142 of the locking member 14 and the countersunk hole 12h of the second structural member 12 is avoided, thereby further improving the appearance refinement of the laptop computer.

[0081] More specifically, the first structural member 11 includes a first body 111 and a boss 112. The boss 112 is connected to the first body 111 and protrudes relative to the first body 111 toward the second structural member 12. The screw-connector 13 includes an embedded portion 131 and a protruding portion 132. The embedded portion 131 is embedded in the boss 112. The protruding portion 132 is connected to the embedded portion 131 and protrudes out of the boss 112 of the first structural member 12. The end surface of the protruding portion 132 facing the second structural member 12 forms a first guide surface S1. The first guide surface S1 is configured as a conical surface that gradually shrinks in the direction of the second structural member 12. In other words, the end surface of the protruding portion 132 facing the second structural member 12 is formed with a convex conical surface in the shape of a cone.

[0082] The second structural member 12 includes a second body 121 and a countersunk platform 122. The countersunk platform 122 is connected to the second body 121 and is recessed relative to the second body 121 toward the screw-connector 13 at the countersunk hole 12h. The inner wall of the countersunk hole 12h forms a second guide surface S2 on the side facing the screw-connector 13. The second guide surface S2 is configured as a conical surface that gradually expands toward the direction of the screw-connector 13. In other words, the inner wall of the countersunk hole 12h is formed with a concave conical surface corresponding to the above-mentioned convex conical surface.

[0083] When the second structural member 12 is connected to the screw member 13, the countersunk platform 122 of the second structural member 12 is sleeved on the protruding portion 132 of the screw member 13 and presses against the convex column 112 of the first structural member 11. At the same time, the first guide surface S1 with a convex conical surface and the second guide surface S2 with a concave conical surface cooperate, so that the threaded hole 13h and the countersunk hole 12h form a concentric hole.

[0084] In some embodiments, the first guide surface S1 is obtained by forming an annular outer chamfer on the end surface of the protrusion 132 of the screw connector 13, and the second guide surface S2 is obtained by forming an annular inner chamfer on the inner wall of the countersunk hole 12h formed on the countersunk platform 122 of the second structural member 12. The inner chamfer on the second structural member 12 is inclined at a similar degree to the outer chamfer on the screw connector 13, so that during the assembly process of the second structural member 12 and the first structural member 11, the inner chamfer on the second structural member 12 and the outer chamfer on the screw connector 13 are adapted to each other to guide the second structural member 12 and the screw connector 13, so that the axial direction of the threaded hole 13h of the screw connector 13 and the axial direction of the countersunk hole 12h of the second structural member 12 are mutually positioned, thereby realizing the coaxial setting or concentric setting of the threaded hole 13h and the countersunk hole 12h, and avoiding the uneven gap between the pressing portion 142 and the inner wall of the countersunk hole 12h affecting the exquisite appearance of the laptop computer.

[0085] Figure 4 The outer wall of the middle screw member 13 includes an annular groove r1 and an annular tooth-shaped protrusion p2. Correspondingly, the first structural member 11 is formed with a protrusion p1 adapted to the groove r1 and a groove r2 adapted to the protrusion p2, the groove r1 is adapted to and engaged with the protrusion p1, and the groove r2 is adapted to and engaged with the protrusion p2, so as to reduce the risk of the screw member 13 rotating during the tightening process of the locking member 14 and the screw member 13.

[0086] In some embodiments, the first structural member 11 is made of plastic, and the first body 111 and the boss 112 may be integrally formed by injection molding, but the present invention is not limited thereto. Figure 4 The middle convex column 112 is generally cylindrical, but is not limited thereto. In addition, the height of the convex column 112 is selected in principle as follows: on the premise of ensuring that the screw connection member 13 and the locking member 14 have sufficient connection strength, a shorter dimension is selected to help reduce the thickness of the connection structure 10, or in other words, to reduce the thickness of the host 120 of the electronic device 100, thereby helping to achieve a lightweight design of the electronic device 100.

[0087] In some embodiments, the second structural member 12 is made of metal (such as aluminum alloy) to make the laptop computer have a delicate appearance and good mechanical strength, but the invention is not limited thereto. The second body 121 is generally in the shape of a flat plate, and the second structural member 12 is recessed at the countersunk hole 12h toward the screw connection member 13 to form a sink 122, which is conducive to reducing the thickness of the second structural member 12.

[0088] In some embodiments, the screw connector 13 is made of metal, and the screw connector 13 can be embedded with the first structural member 11 by hot melting or injection molding, but is not limited thereto. Figure 4 The middle threaded member 13 is generally annular, but not limited thereto. In other embodiments, as long as the threaded member 13 can be embedded in the first structural member 11 and provided with an internal thread for the locking member 14 to cooperate with, it will suffice.

[0089] In some embodiments, the inclination angle of the first guide surface S1 and the inclination angle of the second guide surface S2 are both 45°, which is beneficial to the processing of the first guide surface S1 and the second guide surface S2.

[0090] In some embodiments, the first guide surface S1 and the second guide surface S2 are in full contact in the entire surface, so as to improve the stability during the assembly process of the screw connection member 13 and the second structural member 12. It can be understood that the inclination angle of the first guide surface S1, the inclination angle of the second guide surface S2, and the contact area between the first guide surface S1 and the second guide surface S2 can be freely changed, as long as the first guide surface S1 and the second guide surface S2 can cooperate to guide and position.

[0091] In some embodiments, the locking member 14 is a hexagon socket screw, but is not limited thereto. The locking member 14 may also be other fasteners with external threads.

[0092] Figure 5 FIG. 1 is a cross-sectional schematic diagram of an electronic device according to a second embodiment of the present application. Figure 5 As shown, the electronic device 200 includes a connection structure 20. The connection structure 20 includes a first structural member 21, a second structural member 22, a screw member 23, a locking member 24 and a third structural member 25. The second structural member 22 and the third structural member 25 are connected to form a receiving cavity 200C. The first structural member 21 is located in the receiving cavity 200C and is connected to the third structural member 25.

[0093] The first structural member 21 includes a first body 211 and a boss 212. The boss 212 is connected to the first body 211 and protrudes relative to the first body 211 toward the second structural member 22. The screw-on member 23 includes an embedded portion 231 and a protruding portion 232. The embedded portion 231 is embedded in the boss 212. The protruding portion 232 is connected to the embedded portion 231 and protrudes out of the boss 212 of the first structural member 21. The screw-on member 23 is provided with an internal thread on the wall surface of the threaded hole 23h. The second structural member 22 includes a second body 221 and a countersunk platform 222. The countersunk platform 222 is connected to the second body 221 and is recessed relative to the second body 221 at the countersunk hole 22h toward the screw-on member 23. The second structural member 22 is provided with a countersunk hole 22h corresponding to the threaded hole 23h.

[0094] The locking member 24 includes a connecting portion 241 and a pressing portion 242 connected to the connecting portion 241. The outer wall of the connecting portion 241 is provided with an external thread adapted to the internal thread of the screw-connecting member 23. The connecting portion 241 passes through the countersunk hole 22h and is screwed to the screw-connecting member 23 in the threaded hole 23h, so that the first structural member 21 is fastened to the second structural member 22. After the first structural member 21 is fastened to the second structural member 22, the pressing portion 242 is received in the countersunk hole 22h, and the pressing portion 242 abuts against the step surface of the countersunk hole 22h.

[0095] In the connection structure 20, the screw connection member 23 includes a first guide surface S1, which surrounds the threaded hole 23h and is inclined relative to the axial direction of the threaded hole 23h. The second structural member 22 includes a second guide surface S2, which surrounds the countersunk hole 22h and is inclined relative to the axial direction of the countersunk hole 22h. Since the first guide surface S1 and the second guide surface S2 both have a certain inclination, during the assembly process of the second structural member 22 and the screw connection member 23, the first guide surface S1 of the screw connection member 23 cooperates with the second guide surface S2 of the second structural member 22 for guiding and positioning, so as to achieve the purpose of correcting the concentricity of the countersunk hole 22h of the second structural member 22 and the threaded hole 23h of the screw connection member 23, so that after the locking member 24 is locked with the screw connection member 23, the pressing portion 242 of the locking member 24 is coaxial with the countersunk hole 22h, or in other words, the gap between the pressing portion 242 of the locking member 24 and the inner wall of the countersunk hole 22h is uniform. This helps to avoid the problem of the pressing portion 242 of the locking member 24 and the countersunk hole 22 h of the second structural member 22 being offset.

[0096] It can be seen that the connection structure 20 in the electronic device 200 of the second embodiment is basically the same as the connection structure 10 in the electronic device 100 of the first embodiment. That is to say, the above description of the connection structure 10 can basically be applied to the connection structure 20. The difference between the connection structure 20 in the electronic device 200 of the second embodiment and the connection structure 10 in the electronic device 100 of the first embodiment is mainly that: in the connection structure 20, the first guide surface S1 is configured as a conical surface that gradually expands toward the direction of the second structural member 12, or in other words, the end surface of the screw member 13 facing the second structural member 12 is formed with a conical concave conical surface. The second guide surface S2 is configured as a conical surface that gradually shrinks toward the direction of the screw member 13, or in other words, the end surface of the second structural member 12 facing the screw member 13 is formed with a conical convex conical surface, and the convex conical surface is adapted to the concave conical surface of the screw member 13.

[0097] In the connection structure 20 , the first guide surface S1 can be obtained by forming an annular inner chamfer on the end surface of the protrusion 232 of the screw member 23 . The second guide surface S2 can be obtained by forming an annular outer chamfer on the side of the sink 222 facing the screw member 23 .

[0098] Specifically, the protrusion 232 of the screw connection 23 is formed with a recessed groove G communicating with the threaded hole 23h on the end surface facing the second structural member 22. The first guide surface S1 is obtained by forming an annular inner chamfer on the side wall of the recessed groove G. The sinking platform 222 of the second structural member 22 is roughly annular. The sinking platform 222 includes an inner wall forming the countersunk hole 22h and an outer wall opposite to the inner wall and surrounding the countersunk hole 22h. The second guide surface S2 is obtained by forming an annular outer chamfer on the side of the outer wall of the sinking platform 222 facing the screw connection 23.

[0099] The sink 222 of the second structural member 22 is embedded in the protrusion 232 of the screw connection member 23 and is accommodated in the sink groove G. When the annular sink 222 is embedded with the protrusion 232, the annular outer chamfered surface of the sink 222 (or the convex conical surface of the second structural member 22) can cooperate with the annular inner chamfered surface on the side wall of the sink groove G of the protrusion 232 (or the concave conical surface of the screw connection member 23) for guidance and positioning, so that the sink 222 is embedded in the sink groove G of the protrusion 232 and fits tightly with the annular inner chamfered surface on the side wall of the sink groove G, thereby forming the threaded hole 13h and the countersunk hole 12h as concentric holes. It can be understood that after the locking member 24 is locked with the screw connection member 23, the sink 222 abuts against the bottom wall of the sink groove G.

[0100] In the radial direction of the threaded hole 23h, the protrusion 232 includes a flange 232a extending beyond the embedded portion 231, and the flange 232a abuts against the boss 212. In this way, by providing the flange 232a abutting against the boss 212 on the protrusion 232, after the locking member 24 is locked with the screw member 23, the pressing portion 242 of the locking member 24 applies a fastening force to the flange 232a of the protrusion 232 and the boss 212 through the sink 222, which is beneficial to improve the connection strength between the first structural member 21 and the second structural member 22.

[0101] In summary, in the connection structure of the embodiment of the present application, a first guide surface is formed on the screw-connector, and a second guide surface matched with the first guide surface is formed on the second structural member. The first guide surface cooperates with the second guide surface to guide and position, so as to achieve the purpose of correcting the concentricity of the threaded hole of the screw-connector and the countersunk hole of the second structural member, and then achieve the alignment of the pressing part of the locking member and the countersunk hole after the locking member and the screw-connector are screwed, which is conducive to improving the appearance refinement of the electronic device using the above connection structure.

[0102] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the above preferred embodiments, a person skilled in the art should understand that the technical solution of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A connection structure, characterized in that: include: a first structural member; A screw connection member, embedded in the first structural member, and provided with a threaded hole; A second structural member is provided with a countersunk hole corresponding to the threaded hole; and A locking member, comprising a connecting portion and a pressing portion connected to the connecting portion, wherein the connecting portion passes through the countersunk hole and is threadedly connected to the screw-connecting member at the threaded hole, so that the first structural member and the second structural member are tightly connected, and the pressing portion is received in the countersunk hole; Wherein, the screw connection includes a first guide surface, and the second structural component includes a second guide surface, the first guide surface surrounds the threaded hole and is inclined relative to the axial direction of the threaded hole, the second guide surface surrounds the countersunk hole and is inclined relative to the axial direction of the countersunk hole, and the second guide surface is adapted to the first guide surface so that the countersunk hole is concentric with the threaded hole, and the clamping portion is coaxial with the countersunk hole.

2. The connection structure according to claim 1, characterized in that: The first guide surface is configured as a conical surface that gradually contracts toward the second structural member, and the second guide surface is configured as a conical surface that gradually expands toward the screw connection member; or, The first guide surface is configured as a conical surface that gradually expands toward the second structural member, and the second guide surface is configured as a conical surface that gradually contracts toward the screw connection member.

3. The connection structure according to claim 1, characterized in that: The screw connection member includes an embedded portion and a protruding portion; The embedded portion is embedded in the first structural member and is formed with the threaded hole; The protruding portion is connected to the embedded portion and protrudes out of the first structural member; The first guide surface is formed on the protrusion.

4. The connection structure according to claim 3, characterized in that: The end surface of the protrusion facing the second structural member is formed with the first guiding surface, and the first guiding surface is configured as a conical surface that gradually contracts toward the second structural member; The inner wall of the countersunk hole is formed with the second guide surface on the side facing the screw-connector, and the second guide surface is configured as a conical surface that gradually expands toward the screw-connector; The second structural member is sleeved on the protruding portion, and the first guiding surface is in contact with the second guiding surface.

5. The connection structure according to claim 4, characterized in that: The second structural member is recessed toward the screw connection member at the countersunk hole to form a sink; The sink is sleeved on the protruding portion and abuts against the first structural member.

6. The connection structure according to claim 5, characterized in that: The first structural member includes a protruding column protruding toward the second structural member; The embedded portion is embedded in the convex column, the protruding portion extends beyond the convex column, and the sunken platform abuts against the convex column.

7. The connection structure according to claim 3, characterized in that: The first guide surface is formed on the end surface of the protrusion facing the second structural member, and the first guide surface is configured as a conical surface that gradually expands toward the direction of the second structural member; The second structural member is recessed toward the screw connection member at the countersunk hole to form a sink; The outer wall of the sinking platform surrounding the countersunk hole is formed with the second guide surface on the side facing the screw connection member, and the second guide surface is configured as a conical surface that gradually shrinks toward the screw connection member; The sink is embedded in the protruding portion, and the first guide surface is in contact with the second guide surface.

8. The connection structure according to claim 7, characterized in that: A recessed groove communicating with the threaded hole is formed on the end surface of the protruding portion facing the second structural member, the first guiding surface is formed on the side wall of the recessed groove, and the recessed platform is received in the recessed groove.

9. The connection structure according to claim 8, characterized in that: The first structural member includes a protruding column protruding toward the second structural member; The embedded portion is embedded in the convex column; In a radial direction of the threaded hole, the protrusion includes a flange extending beyond the embedded portion, and the flange abuts against the boss.

10. The connection structure according to any one of claims 1 to 9, characterized in that: The outer wall ring of the screw connection is provided with a protrusion, and the first structural member is formed with a groove adapted to the protrusion; and / or the outer wall ring of the screw connection is provided with a groove, and the first structural member is formed with a protrusion adapted to the groove.

11. An electronic device, characterized in that: The connecting structure comprises the connection structure as claimed in any one of claims 1 to 10, wherein a surface of the second structural member facing away from the first structural member is an appearance surface of the electronic device.

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