Composite cold plate

Abstract

The utility model provides a composite cold plate which comprises a cooling plate, a plurality of connecting holes are formed in the cooling plate, and the cooling plate is used for cooling an object to be cooled; and the lower surface of the plastic plate covers the upper surface of the cooling plate, connecting pieces in one-to-one correspondence with the connecting holes are arranged on the lower surface of the plastic plate, the connecting pieces can shrink and deform to enter the connecting holes, and the connecting pieces can recover deformation when partially protruding out of the connecting holes, so that the plastic plate is connected with the cooling plate in a clamped mode. The composite cold plate is stable in structure and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of radiators, and in particular to a composite cold plate. Background Technology

[0002] Heat sinks are widely used to dissipate heat from objects to be cooled (chips, power modules / devices, etc.).

[0003] In some cases, it is necessary to combine plastic sheets and cooling plates to form composite cold plates. However, existing structures that connect two different materials, plastic sheets and cooling plates, are unstable and prone to separation. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a composite cold plate with simple structure, low cost and stable connection.

[0005] To address the above problems, this utility model provides a composite cold-rolled steel plate, the composite cold-rolled steel plate comprising:

[0006] A cooling plate having multiple connection holes is used to cool the object to be cooled.

[0007] A plastic plate, the lower surface of which covers the upper surface of the cooling plate, is provided with connectors on the lower surface of the plastic plate that correspond one-to-one with the connecting holes. The connectors are capable of shrinking and deforming to enter the connecting holes, and can recover their deformation when they partially protrude from the connecting holes, so that the plastic plate and the cooling plate are engaged.

[0008] Furthermore, the connector includes:

[0009] A rod portion, wherein the rod portion is inserted into the connecting hole;

[0010] The head is connected to the bottom end of the rod. The head of the connector can deform and contract when it enters the connecting hole, and can recover its deformation when it protrudes from the connecting hole. The maximum cross-sectional area of ​​the head is greater than the cross-sectional area of ​​the connecting hole.

[0011] Furthermore, the rod portion includes at least two branch rods, with a first gap between each branch rod, and the head includes at least two heads corresponding one-to-one with the at least two branch rods, with a second gap between each head, and each head can converge to generate contraction deformation and separate to restore deformation.

[0012] Furthermore, the cross-section of the connecting hole is circular, and each of the branch rods can be enclosed to form a cylinder.

[0013] Furthermore, each of the aforementioned segments can enclose a sphere, ellipsoid, cone, or polyhedron.

[0014] Furthermore, the head is made of silicone or rubber.

[0015] Furthermore, the upper surface of the cooling plate has a plurality of protruding pads for connecting the chip, and the plastic plate has a plurality of mounting holes corresponding one-to-one with the plurality of pads, the mounting holes fitting the pads.

[0016] Furthermore, the lower surface of the cooling plate is formed with a plurality of spaced-apart needle fins.

[0017] Furthermore, both the connecting holes and the connectors include multiple connections, with the multiple connecting holes arranged around the edge of the cooling plate and spaced apart, and the multiple connectors arranged around the edge of the plastic plate and spaced apart.

[0018] Furthermore, the cooling plate is an aluminum plate, a copper plate, a stainless steel plate, or an aluminum alloy plate.

[0019] Due to the above technical solution, this utility model has the following beneficial effects:

[0020] The composite cold plate according to this utility model includes a cooling plate and a plastic plate. An object to be cooled is placed on the cooling plate, thereby cooling and dissipating heat from the object. A connector is provided on the plastic plate. The connector undergoes contraction deformation when entering a connecting hole, allowing it to be inserted into and move within the connecting hole. When a portion of the connector (the end of the connector furthest from the main body of the plastic plate) protrudes from the connecting hole, it returns to its original shape. At this point, the cross-sectional area of ​​the portion of the connector is larger than the cross-sectional area of ​​the connecting hole, thus locking it in place, allowing the plastic plate to be snapped into place with the cooling plate. This structure connects the plastic plate to the cooling plate through the connector and the connecting hole, resulting in a snap-fit ​​and tightly bonded composite cold plate. The structure is simple, low-cost, and provides a stable connection. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a structural diagram of a composite cold plate according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Rear view of the composite cold plate in the embodiment;

[0024] Figure 3 This is a structural diagram of a cooling plate according to an embodiment of the present invention;

[0025] Figure 4 This is a structural diagram of the back of a plastic sheet according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 A magnified view of region A in the image.

[0027] Figure label:

[0028] 100, Cooling plate; 110, Connecting hole; 120, Solder pad; 130, Needle fin; 200, Plastic plate; 210, Connector; 211, Head; 212, Rod; 220, Mounting hole. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] The following describes the composite cold plate according to an embodiment of the present invention.

[0032] like Figures 1 to 5 As shown, the composite cold plate of this utility model embodiment includes a cooling plate 100 and a plastic plate 200.

[0033] First, let's describe the cooling plate 100. The cooling plate 100 has a plurality of connection holes 110 and is used to cool the object to be cooled.

[0034] An object to be cooled is placed on the cooling plate 100, thereby cooling and dissipating heat from the object.

[0035] Optionally, the cooling plate 100 is made of aluminum, copper, stainless steel, or aluminum alloy. Copper, aluminum, stainless steel, and aluminum alloys have high thermal conductivity, which allows them to effectively cool the object to be cooled.

[0036] Next, the plastic plate 200 will be described. The lower surface of the plastic plate 200 covers the upper surface of the cooling plate 100. The lower surface of the plastic plate 200 is provided with connectors 210 that correspond one-to-one with the connecting holes 110. The connectors 210 can shrink and deform to enter the connecting holes 110, and can recover their deformation when they partially protrude from the connecting holes 110, so that the plastic plate 200 and the cooling plate 100 are engaged.

[0037] like Figure 1 and Figure 2 As shown, a connector 210 is provided on the plastic plate 200. When the connector 210 enters the connecting hole 110, it undergoes a contraction deformation, thereby being able to be inserted into the connecting hole 110 and move within the connecting hole 110. When a part of the connector 210 (the end of the connector 210 away from the main body of the plastic plate 200) protrudes from the connecting hole 110, it returns to its original shape. At this time, the cross-sectional area of ​​the part of the connector 210 is larger than the cross-sectional area of ​​the connecting hole 110 and is stuck in the connecting hole 110, thereby enabling the plastic plate 200 to be engaged with the cooling plate 100.

[0038] The connector 210 can be an integral elastic component, an end elastic component, or a structure including a rod 212 and a head 211 as described below.

[0039] The plastic plate 200 of this structure is connected to the connection hole 110 of the cooling plate 100 through the connector 210, so that the plastic plate 200 and the cooling plate 100 are snapped together and tightly attached to form a composite cold plate. The structure is simple, the cost is low, and the connection is stable.

[0040] The composite cold plate described above includes a cooling plate 100 and a plastic plate 200. An object to be cooled is placed on the cooling plate 100, thereby cooling and dissipating heat from the object. A connector 210 is provided on the plastic plate 200. The connector 210 undergoes a contraction deformation when entering the connecting hole 110, allowing it to be inserted into and move within the connecting hole 110. When a portion of the connector 210 (the end of the connector 210 furthest from the main body of the plastic plate 200) protrudes from the connecting hole 110, it returns to its original shape. At this point, the cross-sectional area of ​​the portion of the connector 210 is larger than the cross-sectional area of ​​the connecting hole 110, thus locking it in place within the connecting hole 110, thereby enabling the plastic plate 200 to be snapped into place with the cooling plate 100. This structure connects the plastic plate 200 to the connecting hole 110 of the cooling plate 100 via the connector 210, resulting in a snap-fit ​​and tightly fitted composite cold plate. The structure is simple, low-cost, and provides a stable connection.

[0041] In some embodiments of this utility model, the connector 210 includes a rod portion 212 and a head portion 211. The rod portion 212 is inserted into the connecting hole 110. The head portion 211 is connected to the bottom end of the rod portion 212. The head portion 211 of the connector 210 can deform and shrink when it enters the connecting hole 110, and can recover its deformation when it protrudes from the connecting hole 110. The maximum cross-sectional area of ​​the head portion 211 is greater than the cross-sectional area of ​​the connecting hole 110.

[0042] The rod portion 212 of the connector 210 is inside the connection hole 110. The head portion 211 at both ends of the rod portion 212 and the main body of the plastic plate 200 are respectively stuck at both ends of the connection hole 110, thereby making the plastic plate 200 tightly connected to the cooling plate 100.

[0043] The aforementioned connector 210 may specifically include the following two structures.

[0044] Structure 1

[0045] The rod portion 212 includes at least two branch rods with a first gap between them. The head portion 211 includes at least two heads that correspond one-to-one with the at least two branch rods with a second gap between them. The heads can converge to produce a contraction deformation and can separate to restore their deformation.

[0046] like Figure 4 and Figure 5 As shown, the connecting part 212 includes two branch rods, and the connecting part head 211 correspondingly includes two protrusions. One branch rod connects to one protrusion, the two branch rods have a first gap, and the two protrusions have a second gap. When the two protrusions enter the connecting hole 110, they converge and undergo contraction deformation, thus allowing them to move within the connecting hole 110. When the protrusions protrude from the connecting hole 110, the two protrusions return to their original shape and are locked in the connecting hole 110. This connecting part 210 has a simple structure, low cost, and is convenient to use.

[0047] It should be noted that the above are just optional examples. There is no limitation on the number of branch rods and the number of branch heads. They can be three, four, five, etc., and these should all be understood within the scope of this utility model.

[0048] Furthermore, the individual rods can be enclosed to form a cylinder, and the cross-section of the connecting hole 110 is circular.

[0049] like Figure 5 As shown, the sidewalls of each branch rod in this structure can better abut against the sidewall of the connecting hole 110, increasing the friction between the connecting hole 110 and the connector 210 after the composite cold plate is formed, and reducing the relative movement between the two.

[0050] Furthermore, each segment can enclose a sphere, ellipsoid, cone, or polyhedron.

[0051] It should be noted that this is merely an optional example; the head 211 of the dividing rod can also be hat-shaped, etc., and these should all be understood within the scope of this utility model.

[0052] Structure 2

[0053] The head 211 is made of silicone or rubber.

[0054] The rod 212 can be a plastic part that is consistent with the main body of the plastic plate 200, and the head 211 is made of silicone or rubber. The silicone or rubber can produce elastic deformation. When entering the connecting hole 110, the head 211 undergoes extrusion deformation and protrudes through the connecting hole 110. When protruding from the connecting hole 110, the head 211 returns to its original shape and gets stuck in the connecting hole 110.

[0055] Therefore, the composite cold plate with this structure is relatively stable and has a low cost.

[0056] In some embodiments of this utility model, a plurality of protruding pads 120 are formed on the upper surface of the cooling plate 100. The pads are used to connect chips. A plurality of mounting holes 220 corresponding to the plurality of pads 120 are formed on the plastic plate 200. The mounting holes 220 are fitted with the pads 120.

[0057] like Figure 1 and Figure 3 As shown, six pads 120 are formed on the cooling plate 100, and six mounting holes 220 are formed on the plastic plate 200. The mounting holes 220 of the plastic plate 200 can avoid interference with the pads 120, making it convenient for the object to be cooled to be placed on the pads 120. The number of pads 120 and mounting holes 220 is not limited here.

[0058] Furthermore, a plurality of spaced-apart needle fins 130 are formed on the lower surface of the cooling plate 100.

[0059] like Figure 2 As shown, the lower surface of the cooling plate 100 is provided with multiple fins 130. The fins 130 can increase the contact area with the coolant and improve the heat dissipation efficiency.

[0060] Furthermore, both the connecting holes 110 and the connectors 210 include multiple connections. The multiple connecting holes 110 are arranged around the edge of the cooling plate 100 and spaced apart, and the multiple connectors 210 are arranged around the edge of the plastic plate 200 and spaced apart.

[0061] Multiple connectors 210 and multiple connection holes 110 are connected one-to-one, thereby increasing the stability and tightness of the connection between the plastic plate 200 and the cooling plate 100.

[0062] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite cold-rolled steel plate, characterized in that, The composite cold plate includes: A cooling plate having multiple connection holes is used to cool the object to be cooled. A plastic plate, the lower surface of which covers the upper surface of the cooling plate, is provided with connectors on the lower surface of the plastic plate that correspond one-to-one with the connecting holes. The connectors are capable of shrinking and deforming to enter the connecting holes, and can recover their deformation when they partially protrude from the connecting holes, so that the plastic plate and the cooling plate are engaged.

2. The composite cold-rolled plate according to claim 1, characterized in that, The connector includes: A rod portion, wherein the rod portion is inserted into the connecting hole; The head is connected to the bottom end of the rod. The head of the connector can deform and contract when it enters the connecting hole, and can recover its deformation when it protrudes from the connecting hole. The maximum cross-sectional area of ​​the head is greater than the cross-sectional area of ​​the connecting hole.

3. The composite cold-rolled plate according to claim 2, characterized in that, The rod portion includes at least two branch rods, with a first gap between each branch rod. The head includes at least two heads that correspond one-to-one with the at least two branch rods, with a second gap between each head. Each head can converge to produce a contraction deformation and can separate to restore its deformation.

4. The composite cold-rolled plate according to claim 3, characterized in that, The cross-section of the connecting hole is circular, and each of the branch rods can be enclosed to form a cylinder.

5. The composite cold-rolled plate according to claim 4, characterized in that, Each of the aforementioned segments can enclose a sphere, ellipsoid, cone, or polyhedron.

6. The composite cold-rolled plate according to claim 2, characterized in that, The head is made of silicone or rubber.

7. The composite cold-rolled plate according to claim 1, characterized in that, The upper surface of the cooling plate has a plurality of protruding pads for connecting chips. The plastic plate has a plurality of mounting holes corresponding to the plurality of pads, and the mounting holes are fitted with the pads.

8. The composite cold-rolled plate according to claim 7, characterized in that, The lower surface of the cooling plate has multiple spaced-apart needle-like fins.

9. The composite cold-rolled plate according to claim 8, characterized in that, Both the connecting holes and the connectors include multiple ones. The multiple connecting holes are arranged around the edge of the cooling plate and are spaced apart. The multiple connectors are arranged around the edge of the plastic plate and are spaced apart.

10. The composite cold-rolled plate according to claim 1, characterized in that, The cooling plate is made of aluminum, copper, stainless steel, or aluminum alloy.

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