Stamping device for cold plate
By designing the stamping device for cold plates, the oblique and drive device of the wedge is used to solve the problem of difficulty in the separation of cold plates in the existing technology and the deformation of the drum bag, and realize the stable processing of cold plates and the protection of drums.
Patent Information
- Application Number
- CN202420324717.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-22
AI Technical Summary
When the cold plate and the chip/power device are in contact with the existing stamping equipment, it is easy to cause difficulty in separation of the lower die and the cold plate, and the bulge is deformed, which cannot meet the usage needs.
Design a stamping device for cold plates, including the upper and lower molds. The two form the first slope and the second inclined surface of the wedge, respectively. Through the insertion and unplugging operation of the upper and lower directions to avoid pulling the inner wall of the drum.
The easy separation of cold board and stamping device, avoiding the deformation and damage of the drum bag, and meeting the processing needs of the cold plate.
Smart Images
Figure CN222402979U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of radiators, in particular to a stamping device for a cold plate. Background Art
[0002] In order to facilitate better welding and alignment between the cold plate and the chip / power device, a bulge is usually formed on the surface (mounting surface) of the cold plate that contacts the chip / power device. The bulge creates a small gap between the chip / power device and the cold plate during welding.
[0003] In existing stamping equipment, the surfaces of the upper die and the lower die facing each other are usually horizontal planes, and the lower die is formed with an inclined protrusion. When the upper die and the lower die are close to each other, the protrusion of the lower die contacts the mounting surface of the cold plate, and the protrusion obliquely inserts into the mounting surface of the cold plate to form a bulge. However, this design can easily make it difficult to separate the lower die from the cold plate and cause the bulge to deform, which cannot meet the use requirements. Utility Model Content
[0004] In view of the above problems in the prior art, the purpose of the present invention is to provide a punching device for a cold plate, which can facilitate the separation of the cold plate and avoid deformation and damage of the bulge.
[0005] In order to solve the above problems, the utility model provides a stamping device for a cold plate, the stamping device for a cold plate comprising:
[0006] An upper mold, the upper mold comprising a top plate, and an upper pressing block connected below the top plate, wherein a lower surface of the upper pressing block is formed with a first inclined surface and a protrusion protruding downward from the first inclined surface;
[0007] A lower mold, the lower mold comprising a bottom plate and a lower pressing block connected above the bottom plate, the upper surface of the lower pressing block is formed with a second inclined surface, the upper surface of the lower pressing block is used to carry the cold plate, and the first inclined surface and the second inclined surface can be wedged;
[0008] A driving device is connected to the upper die to drive the upper die to move vertically, so that the upper die moves closer to or farther from the lower die.
[0009] Furthermore, the angle between the first inclined plane and the horizontal plane is 30 to 60 degrees.
[0010] Furthermore, a first groove is formed on the lower surface of the upper pressing block, the root of the protrusion is connected to the bottom of the first groove, and the top of the protrusion protrudes from the opening of the first groove.
[0011] Furthermore, the top of the protrusion is perpendicular to the horizontal plane and protrudes downward from the opening of the first groove.
[0012] Furthermore, the first groove comprises a plurality of grooves, and the plurality of first grooves are arranged at intervals.
[0013] Furthermore, a second groove is formed in the middle of the upper surface of the lower pressing block, and the second groove is used to accommodate the pin fins of the cold plate and can be covered by the cold plate.
[0014] Furthermore, a plurality of vacuum holes are formed at the bottom of the second groove, and the stamping device further comprises a vacuum device, and the vacuum device is connected to the vacuum holes.
[0015] Furthermore, the driving device includes a hydraulic device.
[0016] Furthermore, the upper die and the lower die are made of stainless steel.
[0017] Due to the above technical solution, the utility model has the following beneficial effects:
[0018] According to the utility model, a stamping device for a cold plate comprises an upper film, a lower die and a driving device, the upper die and the lower die are respectively formed with a first inclined surface and a second inclined surface which are wedged together, the lower die comprises a bottom plate and a lower pressing block, the upper surface of the lower pressing block is formed with a second inclined surface, so that the cold plate is inclined on the upper surface of the lower pressing block, the driving device drives the upper die downward to approach the lower die, the top plate of the upper die drives the upper pressing block to move downward, the protrusion of the upper pressing block is inserted downward into the inclined cold plate, thereby forming a bulge, the driving device drives the upper die upward away from the lower die, the protrusion of the upper pressing block pulls out the inclined cold plate upward, so that the protrusion is separated from the cold plate, thereby completing the processing of the cold plate. The upper mold forms a downward protrusion, and the lower mold forms a second inclined surface, so that the cold plate is tilted, and the protrusion is inserted downward into the tilted cold plate to form a bulge. When the protrusion is separated from the cold plate, since the direction in which the protrusion is inserted and pulled out of the cold plate is both up and down, there is no pulling of the inner wall of the bulge, making it easy to separate the cold plate and the protrusion without causing deformation and damage to the bulge. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 It is a structural diagram of a stamping device for a cold plate according to an embodiment of the utility model;
[0021] Figure 2 yes Figure 1 A schematic diagram of a stamping device for a cold plate in which an upper die and a lower die are separated and the cold plate is supported;
[0022] Figure 3 is a structural diagram of a cold plate according to an embodiment of the utility model;
[0023] Figure 4 It is a structural diagram of an upper mold according to an embodiment of the utility model;
[0024] Figure 5 It is a structural diagram of a lower mold according to an embodiment of the utility model.
[0025] Reference numerals:
[0026] 100, upper mold; 110, top plate; 120, upper pressure block; 130, first groove; 140, protrusion; 200, lower mold; 210, bottom plate; 220, lower pressure block; 230, second groove; 300, cold plate; 310, substrate; 320, pin fin. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.
[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0029] Next, a punching device for the cold plate 300 according to an embodiment of the present invention is described.
[0030] like Figures 1 to 5 As shown, the punching device for the cold plate 300 according to the embodiment of the utility model comprises: an upper die 100, a lower die 200 and a driving device.
[0031] First, the upper mold 100 is described. The upper mold 100 includes a top plate 110 and an upper pressing block 120 connected below the top plate 110. The lower surface of the upper pressing block 120 is formed with a first inclined surface and a protrusion 140 protruding downward from the first inclined surface.
[0032] like Figure 2 and Figure 4 As shown, the top plate 110 can provide stable support for the upper pressing block 120. The first inclined surface of the upper pressing block 120 can be wedged with the second inclined surface of the lower pressing block 220. The protrusion 140 protruding downward from the first inclined surface can be inserted into the mounting surface (the surface for connecting with the chip / power device) of the cold plate 300 carried by the lower pressing block 220, so that the mounting surface of the cold plate 300 forms a bulge.
[0033] Next, the lower mold 200 is described. The lower mold 200 includes a bottom plate 210, and a lower pressing block 220 connected to the bottom plate 210. The upper surface of the lower pressing block 220 is formed with a second inclined surface. The upper surface of the lower pressing block 220 is used to support the cold plate 300, and the first inclined surface and the second inclined surface can be wedged. The wedged first surface and second surface can increase the contact area between the upper pressing block and the lower pressing block and the cold plate, so that the cold plate can be stably clamped to prevent the cold plate from moving, and it is convenient to form a bulge that meets the requirements on the installation surface of the cold plate.
[0034] like Figure 2 and 5 As shown, the bottom plate 210 can provide stable support for the lower pressing block 220, and the cold plate 300 is carried on the upper surface of the lower pressing block 220. Since the upper surface of the lower pressing block 220 forms a second inclined surface that is wedged with the first inclined surface of the upper pressing block 120, the cold plate 300 is tilted on the lower pressing block 220.
[0035] Finally, the driving device is described. The driving device is connected to the upper mold 100 to drive the upper mold 100 to move vertically, so that the upper mold 100 is close to or away from the lower mold 200.
[0036] The driving device drives the upper mold 100 to approach the lower mold 200 (such as Figure 1 The protrusion 140 of the upper mold 100 is inserted downward into the cold plate 300 obliquely disposed on the lower mold 200, thereby forming a bulge on the mounting surface of the cold plate 300. The driving device drives the upper mold 100 away from the lower mold 200 (as shown in FIG. Figure 2 As shown in FIG. 1 , the protrusion 140 of the upper mold 100 pulls the cold plate 300 upward, thereby completing the processing of the cold plate 300 .
[0037] According to the analysis of the applicant, the surfaces of the upper and lower molds of the conventional design that are close to each other are formed as horizontal surfaces. The cold plate is subjected to the pressure of the upper mold, and the inclined protrusion of the lower mold is inserted into the mounting surface of the horizontally placed cold plate (the protrusion is obliquely inserted into the mounting surface of the cold plate 300, and the mounting surface of the cold plate 300 is shoveled up obliquely to form a bulge, that is, the top of the protrusion must form a certain angle with the mounting surface of the cold plate 300). During separation, the protrusion of the lower mold will pull down the inner wall of the bulge, which may easily cause deformation and damage of the bulge, and will also lift up the cold plate 300, making it difficult to separate the cold plate 300 from the protrusion. The upper mold 100 and the lower mold 200 of the present application are respectively formed with a first inclined surface and a second inclined surface that are wedged together. The upper mold 100 forms a downward protrusion 140, and the lower mold 200 forms a second inclined surface, so that the cold plate 300 is tilted, and the protrusion 140 is inserted downward into the tilted cold plate 300 to form a bulge. When the protrusion 140 is separated from the cold plate 300, since the directions in which the protrusion 140 is inserted and pulled out of the cold plate 300 are both up and down, there is no pulling of the inner wall of the bulge, so that the cold plate 300 is easy to separate from the protrusion 140, and will not cause deformation and damage to the bulge.
[0038] The above stamping device for the cold plate 300, the lower die 200 includes a bottom plate 210 and a lower pressing block 220, the upper surface of the lower pressing block 220 is formed with a second inclined surface, so that the cold plate 300 is inclined on the upper surface of the lower pressing block 220, the driving device drives the upper die 100 downward to approach the lower die 200, the top plate 110 of the upper die 100 drives the upper pressing block 120 to move downward, the protrusion 140 of the upper pressing block 120 is inserted downward into the inclined cold plate 300, thereby forming a bulge, the driving device drives the upper die 100 upward away from the lower die 200, the protrusion 140 of the upper pressing block 120 pulls out the inclined cold plate 300 upward, so that the protrusion 140 is separated from the cold plate 300, thereby completing the processing of the cold plate 300. The upper mold 100 of the present application forms a downward protrusion 140, and the lower mold 200 forms a second inclined surface, so that the cold plate 300 is tilted, and the protrusion 140 is inserted downward into the tilted cold plate 300 to form a bulge. When the protrusion 140 is separated from the cold plate 300, since the directions in which the protrusion 140 is inserted and pulled out of the cold plate 300 are both up and down, there is no pulling on the inner wall of the bulge, so that the cold plate 300 is easy to separate from the protrusion 140 without causing deformation and damage to the bulge.
[0039] In some embodiments of the present invention, the angle between the first inclined plane and the horizontal plane is 30 to 60 degrees.
[0040] Through verification and analysis, the angle of the first slope of the upper mold 100 is 30 to 60 degrees, and correspondingly, the angle of the second slope of the lower mold 200 is 60 to 30 degrees. The stamping device can better form a bulge of the cold plate 300 that meets the predetermined height and predetermined shape.
[0041] In some embodiments of the present invention, a first groove 130 is formed on the lower surface of the upper pressing block 120 , the root of the protrusion 140 is connected to the bottom of the first groove 130 , and the top of the protrusion 140 protrudes from the opening of the first groove 130 .
[0042] That is, the root of the protrusion 140 is buried in the first groove 130, and the top of the protrusion 140 protrudes from the opening of the first groove 130. When the upper pressing block 120 is close to the lower pressing block 220, only the top of the protrusion 140 is in contact with the mounting surface of the cold plate 300, so as to avoid the root of the protrusion 140 pressing the mounting surface of the cold plate 300 and causing deformation and damage of the bulge.
[0043] Furthermore, the top of the protrusion 140 is perpendicular to the horizontal plane and protrudes downward from the opening of the first groove 130 .
[0044] The protrusion 140 protrudes vertically downward from the opening of the first groove 130 , so that the protrusion 140 can be inserted into and removed from the cold plate 300 more smoothly, reducing resistance.
[0045] It should be noted that the above are only optional examples, and the protrusion 140 may also be inclined at a certain small angle, such as 3 degrees, 5 degrees, etc., which should be understood to be within the scope of the present application.
[0046] Optionally, the first groove 130 includes a plurality of first grooves 130 , and the plurality of first grooves 130 are arranged at intervals.
[0047] like Figure 4 As shown, there are eight first grooves 130, and a protrusion 140 is disposed in each groove, so that a plurality of protrusions 140 can be formed on the mounting surface of the cold plate 300. It should be noted that the number of the first grooves is not limited here, and can be four, six, etc.
[0048] In some embodiments of the present invention, a second groove 230 is formed in the middle of the upper surface of the lower pressing block 220 . The second groove 230 is used to accommodate the pin fins 320 of the cold plate 300 and can be covered by the cold plate 300 .
[0049] like Figure 5 As shown, the upper surface of the lower pressing block 220 forms a second groove 230. Figure 3 As shown, the pin fin 320 including the substrate 310 and the pin fin 320 is buried in the second groove 230 (as shown in FIG. Figure 2 As shown in FIG. 1 , the cold plate 300 can be easily fixed and the pin fins 320 of the cold plate 300 and the lower pressing block 220 can be prevented from interfering with each other.
[0050] Furthermore, a plurality of vacuum holes are formed at the bottom of the second groove 230, and the stamping device further comprises a vacuum device, and the vacuum device is connected to the vacuum holes. The vacuum device may be a vacuum generator or a vacuum pump.
[0051] When the cold plate 300 is placed on the lower pressing block 220 , the vacuum device is started to evacuate the vacuum hole so that the cold plate 300 is stably adsorbed on the lower pressing block 220 to avoid position deviation of the bulge caused by the movement of the cold plate 300 .
[0052] In some embodiments of the present invention, the driving device includes a hydraulic device.
[0053] That is, the upper mold 100 is driven to move by the hydraulic device. The hydraulic device has good stability and strong driving force, so that the protrusion 140 of the upper mold 100 can be driven to stably insert into the cold plate 300 to form a bulge that meets the requirements.
[0054] It should be noted that the above are only optional examples, and the driving device may also be a cylinder or a motor, etc., which should be understood to be within the scope of the present utility model.
[0055] In some embodiments of the present invention, the upper die 100 and the lower die 200 are made of stainless steel.
[0056] The upper die 100 and the lower die 200 made of stainless steel have high structural strength and a smooth surface, which is more conducive to forming a bulge that meets the requirements on the cold plate 300 and improving the yield rate of the cold plate 300 processing.
[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A stamping device for cold plate, characterized in that: The punching device comprises: An upper mold, the upper mold comprising a top plate, and an upper pressing block connected below the top plate, wherein a lower surface of the upper pressing block is formed with a first inclined surface and a protrusion protruding downward from the first inclined surface; A lower mold, the lower mold comprising a bottom plate and a lower pressing block connected above the bottom plate, the upper surface of the lower pressing block is formed with a second inclined surface, the upper surface of the lower pressing block is used to carry the cold plate, and the first inclined surface and the second inclined surface can be wedged; A driving device is connected to the upper die to drive the upper die to move vertically, so that the upper die moves closer to or farther from the lower die.
2. The punching device according to claim 1, characterized in that: The included angle between the first inclined plane and the horizontal plane is 30 to 60 degrees.
3. The punching device according to claim 1, characterized in that: A first groove is formed on the lower surface of the upper pressing block, the root of the protrusion is connected to the bottom of the first groove, and the top of the protrusion protrudes from the opening of the first groove.
4. The punching device according to claim 3, characterized in that: The top of the protrusion is perpendicular to the horizontal plane and protrudes downward from the opening of the first groove.
5. The punching device according to claim 3, characterized in that: The first grooves include a plurality of grooves, and the plurality of first grooves are arranged at intervals.
6. The punching device according to claim 1, characterized in that: A second groove is formed in the middle of the upper surface of the lower pressing block. The second groove is used to accommodate the pin fins of the cold plate and can be covered by the cold plate.
7. The punching device according to claim 6, characterized in that: A plurality of vacuum holes are formed at the bottom of the second groove, and the stamping device further comprises a vacuum device connected to the vacuum holes.
8. The punching device according to claim 1, characterized in that: The drive device comprises a hydraulic device.
9. The punching device according to claim 1, characterized in that: The upper die and the lower die are made of stainless steel.