Positioning and locking device and electronic equipment heat dissipation module

Abstract

The utility model provides a positioning and locking device and an electronic equipment heat dissipation module, and relates to the field of electronic equipment. The positioning and locking device comprises a die casting, a positioning piece and an elastic piece, the die casting is provided with a working surface, a first step surface and a second step surface, the first step surface is lower than the working surface, and the second step surface is lower than the first step surface; a mounting hole site is arranged between the first step surface and the second step surface, and the mounting hole site is provided with a first mounting position and a second mounting position along a first direction; the positioning piece is movably mounted between the first mounting position and the second mounting position; the elastic piece is arranged at a fixed position of the positioning piece in a limiting and sleeving mode, provides abutting pressure in the second direction for the positioning piece and meanwhile limits shaking of the positioning piece in the circumferential direction of the positioning piece. By adopting the scheme, the problem that the screw is easy to fall off during disassembly can be avoided, and meanwhile, the disassembly and assembly efficiency can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic equipment, and in particular to a positioning and locking device and a heat dissipation module of an electronic equipment. Background Art

[0002] Nowadays, the heat dissipation module is crucial for laptops. Generally, the heat dissipation module on a laptop mainly includes: fan, heat dissipation copper tube, heat dissipation fins, die-casting, mounting screws, etc. In order to improve assembly efficiency, most designs fix the screws and the module together to form a non-loose structure.

[0003] At present, the following two problems will occur. One of them is that the screws of the heat dissipation module are easy to fall off during the installation and disassembly process, causing defects; the other is that the screws of the heat dissipation module are designed with a captive spring. Even after the screw thread is loosened, it still maintains a certain elastic force with the die-casting under the action of the compression spring. Therefore, during the process of disassembling the module, it is impossible to judge whether the screw is detached by the state of the screw. In addition, there are a large number of captive spring screws that interlock the heat dissipation module with the motherboard, which makes the process of disassembling the heat dissipation module more repetitive, affecting the efficiency of disassembly and assembly. Utility Model Content

[0004] The present disclosure provides a positioning and locking device and an electronic device to at least solve the above technical problems existing in the prior art.

[0005] According to a first aspect of the present disclosure, a positioning and locking device is provided, comprising: a die-casting, a positioning member and an elastic member, the die-casting having a working surface, a first step surface and a second step surface, the first step surface being lower than the working surface, and the second step surface being lower than the first step surface; the first step surface and the second step surface are arranged adjacent to each other, and a mounting hole is arranged between the two, and the mounting hole has a first mounting position and a second mounting position along a first direction respectively; the positioning member is configured to be movably installed between the first mounting position and the second mounting position; the elastic member limiting sleeve is arranged at a fixed position of the positioning member, provides a resisting force in a second direction to the positioning member, and at the same time limits the shaking of the positioning member along its own circumferential direction.

[0006] In one possible implementation manner, the positioning member is configured to move from the first installation position to the second installation position, and to be limited to the second installation position after one rotation.

[0007] In one embodiment, the positioning member includes a flat head portion, a screw portion, a threaded portion and a retaining ring groove, the flat head portion and the threaded portion are respectively located on both sides of the screw portion, and the retaining ring groove is located below the flat head portion; the elastic member is sleeved outside the screw portion, one end of the elastic member is clamped in the retaining ring groove, and the other end of the elastic member is abutted against the first step surface or the second step surface.

[0008] In one possible implementation manner, a stop protrusion is provided above the screw portion, and the stop protrusion is used to provide a locking position for the threaded portion.

[0009] In one possible implementation manner, the first mounting position is formed on the first step surface along the second direction, and the second mounting position is configured as a through hole;

[0010] The second mounting position is formed on the second step surface along the second direction, and an internal thread is arranged on the side of the second mounting position away from the second step surface; the internal thread has an internal chamfer, and the internal chamfer is located at a position where the internal thread is close to the outer surface of the die casting.

[0011] In one embodiment, the width dimensions of the first step surface and the second step surface are greater than the radial dimension of the elastic member.

[0012] In one embodiment, a through hole is extended along the first direction between the first mounting position and the second mounting position, the radial dimension of the first mounting position is greater than the radial dimension of the second mounting position, the radial dimension of the second mounting position is greater than the width dimension of the through hole; the radial dimension of the first mounting position is greater than the outer diameter dimension of the threaded portion.

[0013] In one embodiment, the width of the through hole is greater than the width of the screw portion, and the height of the screw portion between the stop protrusion and the threaded portion is greater than the height of the first step surface relative to the bottom surface of the die casting.

[0014] In one possible implementation manner, the screw portion is provided with a flange structure at a position close to the threaded portion, the flange structure is provided protruding from the outer circumference of the screw portion, and the outer diameter dimension of the flange structure is greater than the width dimension of the through hole position.

[0015] According to a second aspect of the present disclosure, there is provided an electronic device heat dissipation module, comprising the above-mentioned positioning and locking device, and also comprising a heat dissipation fan, a heat dissipation copper tube and heat dissipation fins, wherein the positioning and locking device is used to detachably install the heat dissipation copper tube in an electronic device housing.

[0016] In the positioning locking device and electronic equipment heat dissipation module disclosed in the present invention, the positioning piece is sleeved with an elastic piece, which is preferentially extended from the first installation position and moved from the first installation position to the second installation position. The elastic piece can be limitedly sleeved at a fixed position of the positioning piece to provide a second direction of pressure to the positioning piece. In this way, when the positioning piece is limitedly installed at the second installation position, the elastic piece can provide the positioning piece with an elastic adjustment force along the second direction. Furthermore, the elastic piece can also limit the shaking of the positioning piece along its own circumferential direction, which can further ensure the stable connection between the positioning piece and the elastic piece. When the positioning piece and the die-casting are assembled, the positioning piece will not shake.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0019] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0020] Figure 1 A schematic diagram of the axial structure of the positioning and locking device according to an embodiment of the present disclosure is shown;

[0021] Figure 2 A schematic diagram of the cross-sectional structure of the positioning and locking device of the embodiment of the present disclosure along the central axis of the installation hole is shown;

[0022] Figure 3 A schematic diagram of the axial structure of a positioning member in a positioning and locking device according to an embodiment of the present disclosure is shown;

[0023] Figure 4 A schematic diagram of the cross-sectional structure of a die casting along the central axis of the mounting hole in the positioning and locking device of the embodiment of the present disclosure is shown;

[0024] Figure 5 A schematic top view of the structure of the mounting holes in the positioning and locking device according to an embodiment of the present disclosure is shown.

[0025] Description of the numbers in the figure:

[0026] 001-positioning and locking device; 10-die casting; 11-working surface; 12-first step surface; 13-second step surface; 14-mounting hole position; 141-first mounting position; 142-second mounting position; 143-through hole position; 20-positioning member; 21-flat head; 22-screw portion; 23-threaded portion; 24-circlip groove; 25-stop protrusion; 1421-inner chamfer; 30-elastic member; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0028] With the widespread application of electronic equipment, the research and development direction of the performance of various components or structural parts in electronic equipment has become more and more extensive. Electronic equipment also includes a heat dissipation module, which generally includes: a heat dissipation fan, a heat dissipation copper tube and a heat dissipation fin, wherein the heat dissipation copper tube is generally detachably installed in the electronic equipment housing through a positioning and locking device. The screws of the existing heat dissipation module are easy to fall off during installation and disassembly, resulting in poor use, and the screws are easy to shake during application, affecting the efficiency of disassembly and assembly. Among them, electronic equipment can include desktop computers, laptops, tablets or mobile phone terminals, etc.

[0029] In order to alleviate the above-mentioned problem, the embodiment of the present disclosure provides a positioning and locking device, which can stably and elastically limit the positioning member to the die-casting member, thereby avoiding the problem of the screws easily falling off during disassembly.

[0030] refer to Figure 1-Figure 5 The embodiment of the present disclosure provides a positioning and locking device 001, including: a die casting 10, the die casting 10 is used to detachably limit the heat dissipation module to the housing of the electronic device, specifically, the die casting 10 has a working surface 11, a first step surface 12 and a second step surface 13, and the relationship between the three is as follows: the first step surface 12 is lower than the working surface 11, and the second step surface 13 is lower than the first step surface 12; the first step surface 12 and the second step surface 13 are arranged adjacent to each other, and a mounting hole 14 is arranged between the two, specifically, the mounting hole 14 has a first mounting position 141 and a second mounting position 142 away from the first mounting position 141 along the first direction X; illustratively, the first direction X can be understood as the length direction of the mounting hole 14. The mounting hole 14 includes a first mounting position 141 and a second mounting position 142 that penetrate each other, and the aperture sizes of the two are different.

[0031] Further, the first mounting position 141 is formed on the first step surface 12 along the second direction Y. For example, the first mounting position 141 adopts a countersunk hole structure, and the second mounting position 142 is configured as a through hole; the second direction Y can be understood as the width direction of the mounting hole 14. The second mounting position 142 is formed on the second step surface 13 along the second direction Y, and an internal thread is provided on the side of the second mounting position 142 away from the second step surface 13. The internal thread here is used to threadably cooperate with the threaded portion 23 of the positioning member 20.

[0032] Considering that the die casting 10 can be detachably installed on the housing of the electronic device, the positioning and locking device 001 of the embodiment of the present disclosure also includes a positioning member 20. Specifically, the positioning member 20 includes a flat head 21, a screw rod 22, a threaded portion 23 and a spring groove 24. The flat head 21 and the threaded portion 23 are respectively located on both sides of the screw rod 22, and the spring groove 24 is located below the flat head 21. The positioning member 20 is installed in the mounting hole 14, and the positioning member 20 is configured to be movably installed between the first mounting position 141 and the second mounting position 142. It should be noted that the movable installation here exists in the process of the positioning member 20 being initially installed in the mounting hole 14. After the installation is completed, the positioning member 20 can be stably limited to the second mounting position 142.

[0033] In addition, in order to ensure that the positioning member 20 can be stably limited in the second installation position 142, the embodiment of the present disclosure further includes an elastic member 30, which is limitedly sleeved at a fixed position of the positioning member 20, provides a resisting force in the second direction Y to the positioning member 20, and limits the shaking of the positioning member 20 along its own circumferential direction, so that when the positioning member 20 is limitedly installed in the second installation position 142, the elastic member 30 can provide the positioning member 20 with an elastic adjustment force along the second direction Y. Furthermore, the elastic member 30 can also limit the shaking of the positioning member 20 along its own circumferential direction, which can further ensure the stable connection between the positioning member 20 and the elastic member 30, and the positioning member 20 will not shake when the positioning member 20 and the die casting 10 are assembled.

[0034] Specifically, the elastic member 30 is sleeved outside the screw portion 22, one end of the elastic member 30 is clamped in the spring groove 24, and the other end of the elastic member 30 is against the first step surface 12 or the second step surface 13. In this way, under the setting of the spring groove 24, the positioning member 20 will not shake with the elastic member 30 and the die casting 10. Under the setting of the elastic member 30, the positioning member 20 is not easy to return from the second step surface 13 to the first step surface 12, ensuring that the positioning member 20 does not fall off. Exemplarily, the elastic member 30 adopts any one of a compression spring or an elastic arm structure having the same function as a compression spring.

[0035] Considering the actual installation scenario of the positioning member 20 relative to the die casting 10, the positioning member 20 further includes a stop protrusion 25, which is located above the screw portion 22, and the stop protrusion 25 is used to provide a locking position for the threaded portion 23. Exemplarily, the stop protrusion 25 is a protruding structure protruding from the screw portion 22, and the embodiment of the present disclosure does not limit the shape of the stop protrusion 25, including but not limited to one of a regular shape or an irregular shape.

[0036] In summary, the main structural components of the embodiment of the present disclosure include the above-mentioned die-casting 10, positioning member 20 and elastic member 30. Considering that the positioning member 20 can be movably installed along the one-way channel between the first mounting position 141 and the second mounting position 142, and will not move out along the reverse channel without external force.

[0037] Exemplarily, the positioning member 20 is configured to move from the first mounting position 141 to the second mounting position 142, and is limited to the second mounting position 142 after one rotation. It can be understood that the positioning member 20 moves from the first mounting position 141 to the second mounting position 142 along the first direction X. After reaching the position, the positioning member 20 is rotated, and it cannot return to the first mounting position 141 along the original path. It can be obtained that at least part of the outer contour dimensions of the positioning member 20 include two state dimensions. Exemplarily, the two sides of the screw portion 22 of the positioning member 20 in the opposite direction are cut to form two cutting grooves, the width dimension of the two cutting grooves is D2, and the height dimension of the cutting grooves is H1, and a convex edge structure is formed at the bottom of the screw portion 22, and the aforementioned H1 is the height dimension between the top surface of the convex edge structure and the bottom surface of the stop protrusion 25. The outer contours of the screw portion 22 of the positioning member 20 in the other two opposite directions are still the outer contours of the cylinder, and the radial dimension between the two outer contours of the cylinder is D1.

[0038] Specifically, the width of the first step surface 12 and the second step surface 13 is greater than the radial dimension of the elastic member 30. In this way, the elastic member 30 can press against the first step surface 12 in the initial installation state, and press against the second step surface 13 after being installed in place.

[0039] Furthermore, a through hole position 143 is extended along the first direction X between the first mounting position 141 and the second mounting position 142, the radial dimension D4 of the first mounting position 141 is greater than the radial dimension D6 of the second mounting position 142, and the radial dimension D6 of the second mounting position 142 is greater than the width dimension D5 of the through hole position 143; the radial dimension D4 of the first mounting position 141 is greater than the outer diameter dimension D3 of the threaded portion 23, so that the positioning member 20 can be inserted into the die-casting 10 from the first mounting hole position 14.

[0040] In addition, the width dimension D5 of the through hole position 143 is greater than the width dimension D2 of the screw portion 22, and the height dimension H1 of the screw portion 22 between the stop protrusion 25 and the threaded portion 23 is greater than the height dimension H2 of the first step surface 12 relative to the bottom surface of the die casting 10. In this way, it can be ensured that when the positioning member 20 rotates a certain angle and the planes of the two cutting grooves with a width of D2 are parallel to the side surfaces of the hole wall of the through hole position 143 under the spring compression state, it can be moved to the second installation position 142 via the first installation position 141 and the through hole position 143.

[0041] In addition, the screw part 22 is provided with a convex structure (a structure formed after cutting the groove) at a position close to the threaded part 23. The convex structure is provided protruding from the outer periphery of the screw part 22, and the outer diameter dimension D1 of the convex structure is larger than the width dimension D5 of the through hole position 143. In this way, when the positioning member 20 is in the second installation position 142, and under the elastic force of the spring, the chamfered part presses against the lower surface of the second installation position 142, the screw part 22 will not slide to the through hole position 143 between the first installation position 141 and the second installation position 142 at any angle, further ensuring the effect of the screw not being loosened.

[0042] In addition to the aforementioned problems, although the heat dissipation module adopts a captive spring structure, after the screw thread is loosened, it still maintains a certain elastic force with the die-casting 10 under the action of the compression spring. Therefore, in the process of disassembling the module, it is not possible to judge whether the screw is detached by the state of the screw. In addition, there are a large number of captive spring screws that interlock the heat dissipation module with the mainboard, which makes the process of disassembling the heat dissipation module repetitive.

[0043] In order to alleviate this problem, in the positioning and locking device 001 of the embodiment of the present disclosure, the internal thread has an internal chamfer 1421, and the internal chamfer 1421 is located at the position where the internal thread is close to the outer surface of the die-casting 10. The internal chamfer 1421 here can timely obtain the screwed state of both when the positioning member 20 is threadedly locked, thereby avoiding the idling of the positioning member 20. Specifically, in the process of loosening the nut of the positioning member 20, it can be directly and smoothly screwed into the second mounting position 142, and the semi-threaded design will not cause the positioning member 20 to be separated from the second mounting position 142. This structure improves the efficiency of disassembling the heat dissipation module. Exemplarily, the positioning member 20 of the embodiment of the present disclosure can be any of a screw or bolt with a threaded structure or a non-standard structural member with a locking and screwing function.

[0044] The positioning and locking device 001 of the embodiment of the present invention is adopted, and the stop ring is removed, the composition structure is simpler, and the installation process of the screw is more convenient than the original scheme. In the original scheme, the screw needs to be tightened and then the plastic stop ring is pressed into the limit groove, and the plastic stop ring may be damaged during the pressing; the present scheme only needs to rotate the screw angle and then push it into the second installation position 142 by pressing; and the installation hole position 14 of the embodiment of the present invention adopts a two-step surface design with a height difference, a design in which the diameter of the screw portion 22 and the width of its local cutting groove vary, and the structural design of the screw hole position of the die-casting 10 limits the freedom of the screw and ensures that the screw does not loosen; further, the semi-internal thread design of the screw hole position effectively reflects the loose state of the screw, greatly improving the disassembly efficiency of the heat dissipation module.

[0045] In summary, the positioning and locking device 001 of the embodiment of the present disclosure can realize the stable and limited installation of the positioning member 20 with the elastic member 30 at the second installation position 142 of the die casting 10 through three steps of rotation, pressing, and translation. It has few components, is easy to install, improves work efficiency, and effectively ensures that the screw will not come off. When the screw is loosened from the nut, it is screwed into the lower half of the thread of the second installation position 142 under the elastic force of the spring; when the screw is loosened and cannot rotate, it indicates that the screw is completely loosened from the nut, which effectively improves the disassembly efficiency of the heat dissipation module.

[0046] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A positioning and locking device, characterized in that: include: A die casting (10), the die casting (10) comprising a working surface (11), a first step surface (12) and a second step surface (13), the first step surface (12) being lower than the working surface (11), and the second step surface (13) being lower than the first step surface (12); the first step surface (12) and the second step surface (13) being arranged adjacent to each other, and a mounting hole (14) being arranged therebetween, the mounting hole (14) respectively comprising a first mounting position (141) and a second mounting position (142) along a first direction (X); a positioning member (20), the positioning member (20) being configured to be movably installed between the first installation position (141) and the second installation position (142); An elastic member (30) is limitedly sleeved at a fixed position of the positioning member (20), providing a resisting force in a second direction (Y) to the positioning member (20), while limiting the shaking of the positioning member (20) along its own circumferential direction.

2. The positioning and locking device according to claim 1, characterized in that: The positioning member (20) is configured to move from the first installation position (141) to the second installation position (142), and to be limited to the second installation position (142) after one rotation.

3. The positioning and locking device according to claim 2, characterized in that: The positioning member (20) comprises a flat head portion (21), a screw portion (22), a threaded portion (23) and a retaining ring groove (24); the flat head portion (21) and the threaded portion (23) are respectively located on both sides of the screw portion (22); and the retaining ring groove (24) is located below the flat head portion (21); The elastic member (30) is sleeved outside the screw rod portion (22), one end of the elastic member (30) is clamped in the retaining ring groove (24), and the other end of the elastic member (30) is abutted against the first step surface (12) or the second step surface (13).

4. The positioning and locking device according to claim 3, characterized in that: A stop protrusion (25) is protruded above the screw rod portion (22), and the stop protrusion (25) is used to provide a locking position for the threaded portion (23).

5. The positioning and locking device according to claim 4, characterized in that: The first mounting position (141) is formed on the first step surface (12) along the second direction (Y), and the second mounting position (142) is configured as a through hole; The second installation position (142) is formed on the second step surface (13) along the second direction (Y), and an internal thread is provided on a side of the second installation position (142) away from the second step surface (13); The internal thread has an internal chamfer (1421), and the internal chamfer (1421) is located at a position where the internal thread is close to the outer surface of the die casting (10).

6. The positioning and locking device according to claim 5, characterized in that: The width dimensions of the first step surface (12) and the second step surface (13) are greater than the radial dimension of the elastic member (30).

7. The positioning and locking device according to claim 6, characterized in that: A through hole position (143) is extended along the first direction (X) between the first mounting position (141) and the second mounting position (142); the radial dimension of the first mounting position (141) is greater than the radial dimension of the second mounting position (142); the radial dimension of the second mounting position (142) is greater than the width dimension of the through hole position (143); and the radial dimension of the first mounting position (141) is greater than the outer diameter dimension of the threaded portion (23).

8. The positioning and locking device according to claim 7, characterized in that: The width dimension of the through hole (143) is greater than the width dimension of the screw portion (22), and the height dimension of the screw portion (22) between the stop protrusion (25) and the threaded portion (23) is greater than the height dimension of the first step surface (12) relative to the bottom surface of the die casting (10).

9. The positioning and locking device according to claim 8, characterized in that: The screw portion (22) is provided with a flange structure at a position close to the threaded portion (23), the flange structure is provided protruding from the outer periphery of the screw portion (22), and the outer diameter of the flange structure is greater than the width of the through hole (143).

10. An electronic equipment heat dissipation module, characterized in that: It comprises a positioning and locking device (001) as described in any one of claims 1 to 9, and also comprises a heat dissipation fan, a heat dissipation copper tube and heat dissipation fins, and the positioning and locking device (001) is used to detachably install the heat dissipation copper tube in the housing of an electronic device.

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