A DC / DC power module heat dissipation device

Abstract

The utility model discloses a DCDC power module heat abstractor relates to heat dissipation technical field. A DCDC power module heat abstractor, including installation shell, the inside fixed connection of installation shell has support grating, filter screen replacement structure, filter screen replacement structure is located on installation shell, and filter screen replacement structure includes replacement board, bottom filter screen and side filter screen, and the top of installation shell is provided with positioning slot, and the four sides of installation shell all are provided with the heat dissipation mouth of inside communication with positioning slot, and the side of installation shell is provided with mounting groove, and the inside of positioning slot is slidably connected with side filter screen, and through the independent sliding installation structure that side filter screen is used with bottom filter screen, only needs to dismount replacement board or directly draws out filter screen to can complete replacement, need not to disassemble a plurality of sealing pads or heat dissipation mouth components one by one, avoid the maintenance complexity that leads to because of the dispersed sealing pad in traditional design, further improved the convenience of filter structure replacement.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and in particular to a heat dissipation device for a DC / DC power module. Background Technology

[0002] A power module is a power supply that can be directly mounted on a printed circuit board. Its characteristics include the ability to provide power to application-specific integrated circuits (ASICs), digital signal processors (DSPs), microprocessors, memories, field-programmable gate arrays (FPGAs), and other digital or analog loads. Chinese utility model patent, authorized publication number "CN219395418U", discloses a heat dissipation device for a DC / DC power module. This device features a recessed groove inside the placement slot, reducing the stress area at the lower end of the power module during placement and increasing the internal space. Simultaneously, a first heat dissipation hole is provided inside the groove, a cooling fan is installed inside the placement box, and a second heat dissipation hole is provided inside the base plate. The cooperation of the first and second heat dissipation holes, the cooling fan, and the groove accelerates the internal heat dissipation rate.

[0003] Although the above technical solution has a dustproof sealing gasket in the second heat dissipation hole during use, there are multiple second heat dissipation holes, and the sealing gasket needs to be replaced and maintained after filtering dust for a long time. This requires replacing multiple sealing gaskets one by one, which increases the cumbersomeness of sealing gasket replacement and maintenance. Therefore, we propose a heat dissipation device for DC / DC power modules. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a heat dissipation device for DC / DC power modules. This device can solve the problem that although there are multiple sealing gaskets for dust prevention in the second heat dissipation holes, the sealing gaskets need to be replaced and maintained after filtering dust for a long time, which increases the cumbersomeness of replacing and maintaining the sealing gaskets.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation device for a DC / DC power module, comprising: The mounting housing has a support grid fixedly connected inside; The filter replacement structure is located on the mounting housing. The filter replacement structure includes a replacement plate, a bottom filter, and side filters. The top of the mounting housing has a positioning groove, and all four sides of the mounting housing have heat dissipation vents that communicate with the interior of the positioning groove. One side of the mounting housing has an installation groove, and the side filters are slidably connected to the interior of the positioning groove. The bottom of the side filters passes through the interior of the four heat dissipation vents. The bottom filter is slidably connected to the interior of the installation groove. The replacement plate is bolted to the side of the mounting housing closest to the installation groove, and the bottom of the mounting housing has multiple heat dissipation holes that communicate with its interior.

[0006] Preferably, the bottom of the support grid is fixedly connected to an installation cylinder, and a support frame is fixedly connected inside the installation cylinder, with a cooling fan installed on the support frame.

[0007] Preferably, the inner wall of the mounting shell has multiple threaded holes on both sides, and the multiple threaded holes are arranged in a linear array inside the mounting shell.

[0008] Preferably, a clamping and fixing plate is slidably installed inside the mounting shell, and two bolts on the clamping and fixing plate are connected to the internal threads of the corresponding threaded holes. The clamping and fixing plate is installed inside the mounting shell by bolts.

[0009] Preferably, an anti-slip pad is fixedly connected to one side of the clamping and fixing plate, and the anti-slip pad is made of rubber.

[0010] Preferably, the clamping and fixing plate has a "C" shaped structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The heat dissipation device of this DC / DC power module adopts an independent sliding installation structure for the side filter and the bottom filter. Replacement can be completed by simply removing the replacement plate or directly pulling out the filter. There is no need to disassemble multiple sealing gaskets or heat dissipation assemblies one by one. This avoids the maintenance cumbersomeness caused by the decentralized sealing gaskets in traditional designs and further improves the convenience of filter structure replacement. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bottom filter screen structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the mounting shell of this utility model; Figure 4 This is a schematic cross-sectional view of the mounting shell structure of this utility model.

[0013] Reference numerals: 1. Mounting shell; 2. Side filter screen; 3. Heat dissipation vent; 4. Support grille; 5. Anti-slip pad; 6. Threaded hole; 7. Clamping plate; 8. Heat dissipation hole; 9. Replacement plate; 10. Bottom filter screen; 11. Mounting cylinder; 12. Cooling fan; 13. Support frame; 14. Positioning groove; 15. Mounting groove. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a heat dissipation device for a DC / DC power module, comprising: Mounting housing 1, with a support grid 4 fixedly connected inside the mounting housing 1; The filter replacement structure is located on the mounting housing 1. The filter replacement structure includes a replacement plate 9, a bottom filter 10, and a side filter 2. The top of the mounting housing 1 has a positioning groove 14. All four sides of the mounting housing 1 have heat dissipation vents 3 that communicate with the interior of the positioning grooves 14. One side of the mounting housing 1 has a mounting groove 15. The side filter 2 is slidably connected to the interior of the positioning groove 14. The bottom of the side filter 2 passes through the interior of the four heat dissipation vents 3. The bottom filter 10 is slidably connected to the interior of the mounting groove 15. The replacement plate 9 is bolted to the side of the mounting housing 1 near the mounting groove 15. The bottom of the mounting housing 1 has multiple heat dissipation holes 8 that communicate with its interior.

[0019] The bottom of the support grille 4 is fixedly connected to the mounting cylinder 11, and the inside of the mounting cylinder 11 is fixedly connected to the support frame 13. The support frame 13 is equipped with a cooling fan 12. Multiple threaded holes 6 are opened on both sides of the inner wall of the mounting shell 1, and the multiple threaded holes 6 are arranged in a linear array inside the mounting shell 1.

[0020] A clamping and fixing plate 7 is slidably installed inside the mounting shell 1. Two bolts on the clamping and fixing plate 7 are connected to the internal threads of the corresponding threaded holes 6. The clamping and fixing plate 7 is installed inside the mounting shell 1 by bolts. An anti-slip pad 5 is fixedly connected to one side of the clamping and fixing plate 7. The anti-slip pad 5 is made of rubber. The clamping and fixing plate 7 has a "C" shaped structure.

[0021] Furthermore, when using this device, the side filter 2 slides into the positioning groove 14 at the top of the mounting housing 1, with four heat dissipation vents 3 penetrating through its bottom, covering the air intake areas on all four sides of the mounting housing 1 and preventing dust from entering the interior. The bottom filter 10 slides horizontally into the bottom of the mounting housing 1 through the mounting groove 15. The replacement plate 9 is fixed to the outside of the mounting housing 1 with bolts, sealing the mounting groove 15 and pressing the bottom filter 10 to prevent it from loosening. When the filter accumulates dust, it can be replaced simply by removing the replacement plate 9 or pulling out the corresponding filter, thus shortening maintenance time.

[0022] After the cooling fan 12 on the support frame 13 is started, it draws in cold air from the bottom filter 10 through the mounting cylinder 11. After the airflow is split by the support grille 4, it evenly covers the surface of the DC / DC power module, takes away the heat and is discharged from the side heat dissipation port 3. The clamping and fixing plate 7 is connected to multiple linear array threaded holes 6 on the inner wall of the mounting shell 1 by bolts. It can slide and adjust its position along the length of the mounting shell 1 to adapt to power modules of different sizes.

[0023] With the independent sliding installation structure of the side filter screen 2 and the bottom filter screen 10, the replacement can be completed simply by removing the replacement plate 9 or pulling out the filter screen. There is no need to disassemble multiple sealing gaskets or heat dissipation assemblies one by one, avoiding the maintenance cumbersomeness caused by the decentralized sealing gaskets in traditional designs, and further improving the convenience of filter structure replacement.

[0024] Structural Description: Mounting Housing 1: The main housing of the DC / DC power module heat dissipation device, with internal fixed support grille 4, positioning groove 14 on the top, heat dissipation vents 3 on the four sides, mounting groove 15 on one side, and multiple threaded holes 6 on both sides of the inner wall to provide mounting base and support for each component. Support grille 4: It is fixedly connected inside the mounting shell 1 to support the mounting cylinder 11 and to divert the heat dissipation airflow so that the airflow evenly covers the surface of the DC / DC power module. Replacement plate 9: Bolts are installed on the side of the mounting housing 1 near the mounting groove 15 to seal the mounting groove 15 and press the bottom filter screen 10 to prevent it from loosening; Bottom filter 10: Slidably connected inside the mounting groove 15, used to block dust entering from the bottom of the mounting housing 1, preventing dust from entering the device; Side filter 2: It is slidably connected inside the positioning groove 14, and its bottom passes through the inside of the four heat dissipation vents 3, covering the air intake area on the four sides of the mounting shell 1, and blocking dust from entering the interior from the heat dissipation vents 3; Positioning groove 14: It is formed on the top of the mounting shell 1 and is used to install the side filter screen 2, so that the side filter screen 2 can be slidably inserted along the positioning groove 14. Heat dissipation vent 3: Heat dissipation vent 3 is provided on all four sides of the mounting shell 1, which communicates with the inside of the positioning groove 14, and serves as the airflow inlet and outlet channel. Mounting slot 15: It is opened on one side of the mounting shell 1 and is used to install the bottom filter screen 10 so that the bottom filter screen 10 can slide horizontally into the bottom of the mounting shell 1. Mounting cylinder 11: It is fixedly connected to the bottom of the support grille 4, and the internal support frame 13 is fixed to provide an installation position for the cooling fan 12; Support frame 13: Fixedly connected inside the mounting cylinder 11, used to install the cooling fan 12; Cooling fan 12: Installed on support frame 13, after starting, it draws in cool air from bottom filter screen 10 through mounting cylinder 11, and after being split by support grille 4, it carries away the heat from the surface of DC / DC power module. Threaded holes 6: Multiple threaded holes 6 arranged in a linear array are provided on both sides of the inner wall of the mounting shell 1 for threaded connection with the bolts on the clamping and fixing plate 7 to realize the position adjustment of the clamping and fixing plate 7; Clamping and fixing plate 7: Slidably installed inside the mounting shell 1, connected to the threaded hole 6 by bolts, used to clamp and fix the DC / DC power module, with an anti-slip pad 5 fixedly connected to one side, and has a "C" shaped structure; Anti-slip pad 5: Fixedly connected to one side of the clamping plate 7, made of rubber, used to increase the friction between the clamping plate 7 and the DC / DC power module to prevent the module from loosening.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat dissipation device for a DC / DC power module, characterized in that, include: Mounting shell (1), with a support grid (4) fixedly connected inside the mounting shell (1); The filter replacement structure is located on the mounting housing (1); The filter replacement structure includes a replacement plate (9), a bottom filter (10) and a side filter (2). The top of the mounting shell (1) is provided with a positioning groove (14). The four sides of the mounting shell (1) are provided with heat dissipation vents (3) that communicate with the inside of the positioning groove (14). One side of the mounting shell (1) is provided with a mounting groove (15). The side filter (2) is slidably connected to the inside of the positioning groove (14). Among them, the bottom of the side filter (2) passes through the interior of the four heat dissipation holes (3), the bottom filter (10) is slidably connected to the interior of the mounting groove (15), the replacement plate (9) is bolted to the side of the mounting shell (1) near the mounting groove (15), and the bottom of the mounting shell (1) is provided with multiple heat dissipation holes (8) communicating with its interior.

2. The heat dissipation device for a DC / DC power module according to claim 1, characterized in that: The bottom of the support grid (4) is fixedly connected to the mounting cylinder (11), and the inside of the mounting cylinder (11) is fixedly connected to the support frame (13), on which a cooling fan (12) is installed.

3. The heat dissipation device for a DC / DC power module according to claim 1, characterized in that: Multiple threaded holes (6) are provided on both sides of the inner wall of the mounting shell (1), and the multiple threaded holes (6) are arranged in a linear array inside the mounting shell (1).

4. A DC / DC power module heat dissipation device according to claim 3, characterized in that: The mounting shell (1) is slidably mounted with a clamping fixing plate (7). The two bolts on the clamping fixing plate (7) are connected to the internal threads of the corresponding threaded holes (6). The clamping fixing plate (7) is installed inside the mounting shell (1) by bolts.

5. A DC / DC power module heat dissipation device according to claim 4, characterized in that: An anti-slip pad (5) is fixedly connected to one side of the clamping and fixing plate (7), and the anti-slip pad (5) is made of rubber.

6. A DC / DC power module heat dissipation device according to claim 4, characterized in that: The clamping and fixing plate (7) has a "C" shaped structure.

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