Radiator device

Abstract

The utility model discloses a radiator device which is used for being installed on a circuit mainboard, the circuit mainboard comprises a mainboard body and a function unit arranged on the mainboard body, the mainboard body is provided with an installation hole, the radiator device comprises a heat dissipation substrate and a fastening device, the heat dissipation substrate is provided with a first side face and a second side face which are opposite to each other, and the fastening device is arranged on the first side face. The first side face abuts against the surface of the function unit, and the heat dissipation substrate is provided with a receding hole. The fastening assembly comprises a fastening piece and an elastic piece, the fastening piece is provided with a limiting part and a fastening part which are connected, the limiting part is arranged on the side, away from the mainboard body, of the heat dissipation substrate, the limiting part and the second side face are spaced to form a deformation space, the elastic piece is arranged in the deformation space, the first end of the elastic piece is fixedly arranged on the second side face, and the second end of the elastic piece abuts against the limiting part in a sliding mode; in the process that the fastening part penetrates through the receding hole and is installed in the installation hole, the elastic potential energy of the elastic piece is increased. According to the technical scheme, the convenience of installation of the radiator can be improved, so that the installation efficiency of the radiator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chip heat dissipation, in particular to a radiator device. Background Art

[0002] At present, in order to ensure that the heat sink and the motherboard can maintain a good fit, spring bolts are usually used to fix the heat sink and the motherboard. The spring bolts include screws, nuts and coil springs, wherein the coil spring is sleeved on the screws, and the screws pass through the heat sink downwards and lock with the nuts, so that the heat sink elastically presses the chip module downwards, so that the chip module abuts against the motherboard downwards to ensure good contact between the chip module and the terminal. However, this structure requires that the coil spring be sleeved on the screws during the installation process, and the sleeve state is maintained until the screws are aligned with the mounting holes on the motherboard and the heat sink. Therefore, the staff needs to be careful not to let the spring slip off the screws, which is more labor-intensive and not easy to improve production efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a radiator device, aiming to improve the convenience of radiator installation and to improve the installation efficiency of the radiator.

[0004] To achieve the above-mentioned purpose, the heat sink device proposed by the utility model is used to be installed on a circuit mainboard, the circuit mainboard includes a mainboard body, a functional unit arranged on the mainboard body, the mainboard body is provided with a mounting hole, and the heat sink device includes:

[0005] The heat sink comprises a heat dissipation substrate, wherein the heat dissipation substrate has a first side surface and a second side surface opposite to each other, wherein the first side surface abuts against a surface of the functional unit, and the heat dissipation substrate is provided with a clearance hole;

[0006] A fastening assembly includes a fastener and a spring sheet, wherein the fastener has a limiting portion and a fastening portion connected to each other, the limiting portion is arranged on a side of the heat dissipation substrate away from the mainboard body, and is spaced apart from the second side surface to form a deformation space, the spring sheet is arranged in the deformation space, the first end of the spring sheet is fixedly arranged on the second side surface, and the second end slides and abuts against the limiting portion; when the fastening portion passes through the clearance hole and is installed in the installation hole, the elastic potential energy of the spring sheet increases.

[0007] Optionally, the spring piece includes a first segment and two second segments arranged on opposite sides of the first segment. The first segment is fixed to the heat dissipation substrate and is provided with an avoidance hole corresponding to the makeshift hole. The fastening portion can pass through the avoidance hole and the makeshift hole in sequence to be clamped in the mounting hole; the end of the second segment away from the first segment slides and abuts against the limiting portion.

[0008] Optionally, in a direction from the fastening portion toward the limiting portion, the second segment extends obliquely in a direction away from the avoidance hole.

[0009] Optionally, a sliding flange is bent at the end of the second segment in a direction away from the avoidance hole, and the sliding flange extends along an arc line and slidably abuts against the limiting portion.

[0010] Optionally, the first segment is fixed on the heat dissipation substrate by welding.

[0011] Optionally, the radiator also includes a plurality of cooling fins arranged on the second side, the cooling fins extend along the first direction, the plurality of cooling fins are spaced apart along the second direction, and the first direction and the second direction are arranged to intersect; a cooling gap is formed between two adjacent cooling fins, and the spring is arranged in the cooling gap.

[0012] Optionally, the fastener also includes a rod-shaped portion, the fastening portion includes a buckle, the buckle is snap-connected with the mounting hole, the limiting portion is two limiting plates arranged on opposite sides of the rod-shaped portion, the limiting plates are arranged in the shape of long strips corresponding to the heat dissipation gap, and can extend into the heat dissipation gap.

[0013] Optionally, the radiator further comprises a heat dissipation cover plate, and the heat dissipation cover plate is arranged to cover the heat dissipation substrate and the fastening assembly.

[0014] Optionally, the fastener further includes a pressing portion, and the limiting portion is disposed on one side of the pressing portion and is disposed close to the heat dissipation substrate.

[0015] Optionally, the buckle is configured as an umbrella-shaped buckle head, a compression groove is provided on the umbrella-shaped buckle head, the compression groove is used to provide a compression space, and the fastener is made of elastic plastic.

[0016] The technical solution of the utility model fixes the spring sheet on the heat dissipation substrate, so that when the staff installs the radiator on the mainboard, there is no need to spend energy to keep the spring in the state of being sleeved on the screw. During installation, the staff aligns the fastener with the mounting hole and moves the fastener toward the direction close to the mainboard. The fastener can squeeze the spring sheet to produce a large elastic deformation to fix the radiator on the mainboard, and at the same time the radiator can maintain abutment with the functional unit on the mainboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the radiator device of the utility model;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0021] Figure 4 for Figure 2 Cross-sectional view at the middle BB.

[0022] Description of Figure Numbers:

[0023] Label name Label name 10 heat sink 212a Buckle 11 Heat dissipation substrate 212b Umbrella shaped buckle 111 First side 212c Compression groove 112 Second side 213 Pressing part 113 Deformation Space 214 Rod 114 Avoidance hole 22 shrapnel 12 Heat sink 221 First Clip 121 Heat dissipation gap 222 Second segment 13 Heat dissipation cover 223 Sliding flange 20 Fastening components 30 Circuit board 21 fastener 31 Motherboard 211 Limiting part 32 Functional Unit 211a Limit plate 33 Mounting holes 212 Fastening part

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] The utility model provides a radiator device.

[0030] In the embodiment of the utility model, the radiator device is as follows Figures 1 to 4 As shown, the heat sink 10 is used to be installed on a circuit main board 30, the circuit main board 30 includes a main board body 31, a functional unit 32 arranged on the main board body 31, and the main board body 31 is provided with a mounting hole 33. The heat sink 10 device includes:

[0031] The heat sink 10 includes a heat dissipation substrate 11, the heat dissipation substrate 11 has a first side surface 111 and a second side surface 112 opposite to each other, the first side surface 111 abuts against the surface of the functional unit 32, and the heat dissipation substrate 11 is provided with a clearance hole;

[0032] The fastening assembly 20 includes a fastener 21 and a spring sheet 22. The fastener 21 has a limit portion 211 and a fastening portion 212 connected to each other. The limit portion 211 is arranged on a side of the heat dissipation substrate 11 away from the main board body 31, and is spaced from the second side surface 112 to form a deformation space 113. The spring sheet 22 is arranged in the deformation space 113. The first end of the spring sheet 22 is fixed on the second side surface 112, and the second end slides and abuts against the limit portion 211. In the process of the fastening portion 212 passing through the clearance hole and being installed in the mounting hole 33, the elastic potential energy of the spring sheet 22 increases.

[0033] The technical solution of the utility model fixes the spring piece 22 on the heat dissipation substrate 11, so that when the staff installs the radiator 10 on the mainboard, there is no need to spend energy to keep the spring in the state of being sleeved on the screw. During installation, the staff aligns the fastener 21 with the mounting hole 33 and moves the fastener 21 toward the direction close to the mainboard. The spring piece 22 can be squeezed by the fastener 21 to generate a large elastic deformation so that the radiator 10 is fixed on the mainboard, and at the same time, the radiator 10 can maintain abutment with the functional unit 32 on the mainboard.

[0034] Optionally, the spring piece 22 includes a first segment 221 and two second segments 222 disposed on opposite sides of the first segment 221. The first segment 221 is fixed to the heat dissipation substrate 11, and a avoidance hole 114 is provided corresponding to the give-way hole. The fastening portion 212 can pass through the avoidance hole 114 and the give-way hole in sequence to be clamped in the mounting hole 33. The end of the second segment 222 away from the first segment 221 is slidably abutted against the limiting portion 211. That is, the spring piece 22 abuts against the abutting portion through the two second segments 222, so that the elastic force on the fastener 21 can reach a force balance state on the opposite sides of the fastener 21, so that the fastener 21 can have a longer service life. In other implementations, the first segment 221 may not be provided, and the two second segments 222 are formed by lathe bending from the second side surface 112 of the heat dissipation substrate 11, that is, the spring piece 22 is integrated with the heat dissipation substrate 11.

[0035] Optionally, in the direction from the fastening portion 212 toward the limiting portion 211, the second segment 222 extends obliquely in the direction away from the avoidance hole 114. That is, the spring piece 22 tends to open in the direction away from the heat dissipation substrate 11. When the fastener 21 presses down the spring piece 22, the ends of the two second segments 222 away from the first segment 221 move away from each other, and the spring piece 22 has a larger deformation range. In other embodiments, the second segment 222 can also extend obliquely in the direction from the fastening portion 212 toward the limiting portion 211 in the direction close to the avoidance hole 114, that is, the spring piece 22 tends to close in the direction away from the heat dissipation substrate 11.

[0036] Optionally, the end of the second segment 222 is bent with a sliding flange 223 in a direction away from the avoidance hole 114, and the sliding flange 223 extends along an arc and slides against the limiting portion 211. The sliding flange 223 enables the second segment 222 to move on the limiting portion 211 well without wearing the limiting portion 211 during movement. In other embodiments, the end surface of the second segment 222 away from the heat dissipation substrate 11 may be a smooth arc surface, and the end surface and the side surface of the second segment 222 may have a smooth transition.

[0037] Optionally, the first segment 221 is fixed to the heat dissipation substrate 11 by welding, so that the fixing between the spring piece 22 and the heat dissipation substrate 11 is more firm. In other embodiments, the first segment 221 and the heat dissipation substrate 11 can also be fixed by glue or bolts.

[0038] Optionally, the heat sink 10 further includes a plurality of heat dissipation fins 12 disposed on the second side surface 112, the heat dissipation fins 12 extend along the first direction, and the plurality of heat dissipation fins 12 are spaced apart along the second direction, and the first direction and the second direction are arranged to intersect; a heat dissipation gap 121 is formed between two adjacent heat dissipation fins 12, and the spring piece 22 is disposed in the heat dissipation gap 121. That is, the deformation space 113 includes part of the heat dissipation gap 121, and when the spring piece 22 undergoes elastic deformation, the end of the second segment 222 away from the heat dissipation substrate 11 moves away from each other along the first direction. In other embodiments, the heat dissipation substrate 11 may also have an extension plate, which is disposed outside the heat dissipation fins 12, and the spring piece 22 is fixed on the extension plate.

[0039] Optionally, the fastener 21 further includes a rod-shaped portion 214, the fastening portion 212 includes a buckle 212a, the buckle 212a is engaged with the mounting hole 33, the limiting portion 211 is two limiting plates 211a provided on opposite sides of the rod-shaped portion 214, the limiting plates 211a are provided in the shape of long strips corresponding to the heat dissipation gap 121, and can extend into the heat dissipation gap 121. Since the width of the heat dissipation gap 121 is limited, the limiting plates 211a need to be narrower than the heat dissipation gap 121 so as to be able to extend into the heat dissipation gap 121 and move in the up and down directions. The limiting block also needs to maintain an abutting relationship with the spring sheet 22, so the limiting block needs to have a longer length in the first direction, so the plane cross-section of the limiting plate 211a is in the shape of a long strip. In other embodiments, the fastener 21 may include a rod-shaped portion 214 and a thread provided on the rod-shaped portion 214 , the mounting hole 33 may be configured as a threaded hole, and the fastener 21 may be screwed into the mounting hole 33 to maintain contact with the spring sheet 22 .

[0040] Optionally, the heat sink 10 further includes a heat dissipation cover plate 13, which is disposed on the heat dissipation substrate 11 and the fastening assembly 20. The heat dissipation cover plate 13 can prevent small solid particles such as dust from entering the heat dissipation fins 12, thereby preventing fine dust from affecting the heat dissipation effect. In other embodiments, the heat dissipation cover plate 13 may not be provided.

[0041] Optionally, the fastener 21 further includes a pressing portion 213, and the limiting portion 211 is disposed on one side of the pressing portion 213 and is disposed close to the heat dissipation substrate 11. The setting of the pressing portion 213 facilitates the direct transmission of the pressure applied by the staff to the fastener 21 to the buckle 212a through the rod-shaped portion 214, thereby preventing the limiting portion 211 from dispersing part of the pressure when pressure is applied to the limiting portion 211. In other embodiments, the pressing portion 213 may not be provided.

[0042] Optionally, the buckle 212a is configured as an umbrella-shaped buckle head 212b, and a compression groove 212c is provided on the umbrella-shaped buckle head 212b. The compression groove 212c is used to provide a compression space, and the material of the fastener 21 is elastic plastic. The compression groove 212c allows the umbrella-shaped buckle head 212b to have a certain deformation space 113, so that the umbrella-shaped buckle head can be squeezed by the mounting hole 33 to undergo a large deformation. The setting of the elastic plastic material further enhances the deformation ability and recovery ability of the umbrella-shaped buckle head 212b. At the same time, the fastener 21 made of plastic material is easy to process and shape, saving production costs and reducing the technology required for production. In other embodiments, the buckle 212a can also be configured as a snap-on buckle head of other shapes, which is not limited here.

[0043] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat sink device for installation on a circuit board, characterized in that: The circuit mainboard includes a mainboard body and a functional unit arranged on the mainboard body. The mainboard body is provided with a mounting hole. The heat sink device includes: The heat sink comprises a heat dissipation substrate, wherein the heat dissipation substrate has a first side surface and a second side surface opposite to each other, wherein the first side surface abuts against a surface of the functional unit, and the heat dissipation substrate is provided with a clearance hole; A fastening assembly includes a fastener and a spring sheet, wherein the fastener has a limiting portion and a fastening portion connected to each other, the limiting portion is arranged on a side of the heat dissipation substrate away from the mainboard body, and is spaced apart from the second side surface to form a deformation space, the spring sheet is arranged in the deformation space, the first end of the spring sheet is fixedly arranged on the second side surface, and the second end slides and abuts against the limiting portion; when the fastening portion passes through the clearance hole and is installed in the installation hole, the elastic potential energy of the spring sheet increases.

2. The heat sink device according to claim 1, characterized in that The spring piece includes a first segment and two second segments arranged on opposite sides of the first segment. The first segment is fixed to the heat dissipation substrate and is provided with an avoidance hole corresponding to the makeshift hole. The fastening portion can pass through the avoidance hole and the makeshift hole in sequence to be clamped in the mounting hole; the end of the second segment away from the first segment slides and abuts against the limiting portion.

3. The heat sink device according to claim 2, characterized in that In a direction from the fastening portion toward the limiting portion, the second segment extends obliquely in a direction away from the avoidance hole.

4. The heat sink device according to claim 3, characterized in that The end of the second segment is bent toward a direction away from the avoidance hole to form a sliding flange, and the sliding flange extends along an arc line and slidably abuts against the limiting portion.

5. The heat sink device according to claim 2, characterized in that The first segment is fixed on the heat dissipation substrate by welding.

6. The heat sink device according to claim 2, wherein: The radiator also includes a plurality of heat dissipation fins arranged on the second side surface, the heat dissipation fins extend along a first direction, the plurality of heat dissipation fins are distributed at intervals along a second direction, and the first direction and the second direction are arranged to intersect; a heat dissipation gap is formed between two adjacent heat dissipation fins, and the spring is arranged in the heat dissipation gap.

7. The heat sink device according to claim 6, characterized in that The fastener also includes a rod-shaped portion, the fastening portion includes a buckle, the buckle is snap-connected with the mounting hole, the limiting portion is two limiting plates arranged on opposite sides of the rod-shaped portion, the limiting plates are arranged in the shape of long strips corresponding to the heat dissipation gaps, and can extend into the heat dissipation gaps.

8. The heat sink device according to claim 7, characterized in that The radiator further comprises a heat dissipation cover plate, and the heat dissipation cover plate is arranged to cover the heat dissipation substrate and the fastening assembly.

9. The heat sink device according to claim 7, characterized in that The fastener further includes a pressing portion, and the limiting portion is arranged on one side of the pressing portion and is arranged close to the heat dissipation substrate.

10. The heat sink device according to claim 7, wherein: The buckle is configured as an umbrella-shaped buckle head, and a compression groove is provided on the umbrella-shaped buckle head. The compression groove is used to provide a compression space, and the material of the fastener is elastic plastic.

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