CN220254987U

CN220254987U - 6UVPX vehicle-mounted power supply structure

Info

Publication number: CN220254987U
Application number: CN202321964164.7U
Authority: CN
Inventors: 杜文忠
Original assignee: Beijing Wingot Electronics Co ltd
Current assignee: Beijing Wingot Electronics Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-12-26
Anticipated expiration: 2033-07-25

Abstract

The utility model provides a 6UVPX vehicle-mounted power supply structure, which relates to the technical field of power supply design and comprises a shell, a cover plate and printed boards, wherein the cover plate is arranged at the bottom of the shell, a plurality of radiating teeth which are in the same direction and uniformly distributed at intervals are uniformly arranged at the top of the shell, the printed boards are arranged in an inner cavity of the shell in a erection mode, functional elements on the printed boards are positioned between the printed boards and the top of the inner cavity of the shell, the top of each functional element is respectively attached to a radiating block, and all the radiating blocks are connected with the shell and are of an integral structure; the side wall of each heat dissipation tooth adjacent to the adjacent heat dissipation tooth is a wavy surface extending from top to bottom, and two adjacent wavy surfaces in the two adjacent heat dissipation teeth are symmetrically arranged about a vertical surface at the center of the two adjacent wavy surfaces; the heat dissipation structure is complicated among the prior art can effectively be avoided to this application, influences the technical problem of packaging efficiency.

Description

6UVPX vehicle-mounted power supply structure

Technical Field

The utility model relates to the technical field of power supply design, in particular to a 6UVPX vehicle-mounted power supply structure.

Background

The VPX power supply adopts VITA62 standard, supports PMBUS communication protocol, and has the output capability of multipath voltage. When the device works, larger heat is generated, and timely heat dissipation is a necessary means for ensuring the normal work of the device.

The traditional VPX power supply heat dissipation process is mostly that functional elements on a printed board send out heat and then enter the space in the shell, then the heat is conducted to the shell, and the shell dissipates heat through heat dissipation teeth on the outer wall of the shell.

In the process, heat generated by the functional element can be transferred to the shell through an air medium, and the heat transfer process is slow, so that the heat dissipation efficiency is affected.

In some prior arts, for example, CN210959310U discloses a VPX dc power module, which is formed by arranging a heat collecting plate near a functional element, then connecting the heat collecting plate with a heat collecting tube, connecting the heat collecting tube with a housing, and radiating heat from the housing through external heat radiating teeth thereof; the process realizes the rapid heat transfer, thereby achieving the purpose of accelerating heat dissipation.

However, the above structure increases the number of the constituent parts constituting the whole power supply on the one hand, and increases the complexity and the assembly difficulty of the structure in the power supply housing on the other hand.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a 6UVPX vehicle-mounted power supply structure which is used for solving the technical problem that a radiating device is difficult to assemble in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a 6UVPX vehicle-mounted power supply structure which is characterized in that, including casing, apron and printing board, the apron is installed in the casing bottom, the casing top evenly is provided with a plurality of homodromous and evenly spaced apart radiating tooth, the printing board erects and installs in the casing inner chamber, functional element on the printing board is in between printing board and the casing inner chamber top, every functional element's top is laminated with a radiating block respectively, all the radiating block with the casing is connected and is integrated into one piece structure; the side wall of each heat dissipation tooth adjacent to the adjacent heat dissipation tooth is a wavy surface extending from top to bottom, and two adjacent wavy surfaces in the two adjacent heat dissipation teeth are symmetrically arranged about a vertical surface at the center of the two adjacent wavy surfaces; the top of the inner cavity of the shell is also provided with a plurality of heat collecting parts which are integrated with the shell, and the heat collecting parts are not contacted with the printed board and the functional elements on the printed board; the heat collecting part is specifically a heat collecting groove arranged on the top of the inner cavity of the shell or heat collecting teeth arranged on the top of the inner cavity of the shell.

Further, a heat dissipation groove is further formed between two adjacent heat dissipation teeth, and the cross section of the heat dissipation groove is in a downward convex arc shape.

Further, each functional element corresponds to a plurality of connecting screws, the head of each connecting screw is arranged below the printed board, and the top end of the screw rod part penetrates through the printed board and then is connected with the corresponding heat dissipation block.

Further, the corresponding connecting screw of each functional element is arranged on the outer side of the functional element, and the screw rod part consists of a part A positioned above and a part B connected with the head part below; the part A and the part B are coaxially distributed, and the outer diameter of the part A is smaller than that of the part B; the top end of the part A passes through the printed board and is in threaded connection with the corresponding radiating block; and a heat conducting block is sleeved on the part of the part A between the corresponding heat radiating block and the corresponding part B.

Further, one end of the printed board is connected with a VPX connector arranged outside the shell.

Further, two sides of the end part of the shell, which is away from the VPX connector, are respectively provided with a pull-out aid.

Further, two sides of the shell are respectively provided with a guide rail integrated with the shell, and locking bars are arranged on the guide rails.

Further, a heat-conducting silica gel layer is arranged between the functional element and the corresponding radiating block.

Further, the bottom of the shell is provided with a sinking groove communicated with the opening end of the bottom of the shell, and the cover plate is arranged in the sinking groove and is connected with the shell through a plurality of countersunk head screws.

Further, a plurality of struts are arranged in the shell and used for erecting and connecting the printed boards.

(III) beneficial effects

The utility model provides a 6UVPX vehicle-mounted power supply structure. Compared with the prior art, the method has the following beneficial effects:

through setting up the radiating block as an organic whole structure with the casing, can effectually make the heat that functional element produced directly transmit for the casing through the radiating block, avoid in the prior art need with the help of heat collecting plate, heat collecting tube etc. transmit for the drawback of casing, improved heat transfer efficiency and radiating efficiency.

Through setting up the wave surface, effectively increased the radiating area of heat dissipation tooth, be convenient for improve radiating efficiency.

Through the arrangement of the integrated structure, the defects that the installation efficiency is affected and the like caused by independently preparing the heat collecting plate, the heat collecting pipe and the like are avoided, and the production efficiency of the equipment is improved.

The heat collection part is arranged to conduct heat effectively, so that heat dissipation efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of fig. 1 of a 6uv px vehicle-mounted power supply structure provided in an embodiment;

fig. 2 is an exploded view of fig. 2 of a 6uv px vehicle-mounted power supply structure provided in an embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a cross-sectional view showing the connection relationship of the heat conduction block, the connection screw, the heat dissipation block, and the like.

In the figure: 1. a housing; 2. a printed board; 3. a cover plate; 4. radiating teeth; 5. a heat dissipation block; 6. a wave surface; 7. a heat sink; 8. a thermally conductive silicone layer; 9. a heat collecting section; 10. a VPX connector; 11. a pull-out aid; 12. a guide rail; 13. a locking bar; 14. sinking grooves; 15. countersunk head screws; 16. a connecting screw; 17. a support post; 18. a functional element; 16-1, part A;16-2, part B; 17. a heat conducting block 19.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the technical problem that the internal structure of the VPX power supply is complex and the assembly is difficult due to the arrangement of the heat collecting plates and the heat collecting pipes in the prior art, the main idea of the application is as follows:

firstly, the functional elements 18 mounted on the printed board 2 are arranged between the top of the inner cavity of the shell 1 and the printed board 2, then a heat dissipation block 5 attached to each functional element 18 (the functional elements 18 can be filters, transformers, capacitors and the like) is arranged above each functional element (the height, the cross section area and the like of each heat dissipation block 5 are set according to the size of the corresponding functional element 18 and are not uniform, the top of the inner cavity of the shell 1 can be an uneven surface by a plurality of heat dissipation blocks 5, the side wall of the heat dissipation block 5 which is not contacted with the corresponding functional element 8 forms a heat absorption surface, and heat dissipation can be accelerated), and each heat dissipation block 5 is integrally prepared with the shell 1; next, the side walls of the heat dissipation teeth 4 at the top of the housing 1 are made to be wavy surfaces 6.

Namely, by means of direct contact between the radiating block 5 and the functional element 18, the radiating time is reduced, and the radiating block 5 with low temperature is in direct contact with the heating functional element 18, so that heat transfer is quickened, the radiating block 5 and the shell 1 are of an integrated structure, and heat absorbed by the radiating block can be quickly transmitted to the radiating teeth 4 with lower temperature outside the shell 1; the side wall of the radiating tooth 4 is provided with a wave surface 6, so that the radiating area of the radiating tooth can be effectively increased, and the radiating efficiency is improved;

the heat dissipation block 5 and the heat dissipation teeth 4 are integrally manufactured when the shell 1 is manufactured, so that the assembly difficulty of the equipment can be effectively reduced, and meanwhile, the complexity of the equipment can be reduced.

For better understanding of the technical solutions of the present application, the following description will describe the technical solutions of the present application in detail with reference to specific embodiments and drawings.

With reference to fig. 1-3, this embodiment provides a 6uv px vehicle-mounted power supply structure, which includes a housing 1, a printed board 2, and a cover plate 3; the bottom of the shell 1 is an open end, a printed board 2 erected and installed in the shell is arranged in the shell, functional elements 18 on the printed board 2 are arranged between the printed board and the top of an inner cavity of the shell 1, a heat dissipation block 5 which is integrated with the shell 1 into a whole is arranged above each functional element 18, and the bottom of each heat dissipation block 5 is attached to the top of the corresponding functional element 18, so that heat conduction is realized; the cover plate 3 is mounted on the bottom of the housing 1 to close the open end of the bottom thereof.

The heat dissipation block 5 integrated with the shell 1 is arranged, so that the heat dissipation block 5 can be integrally prepared during the preparation of the shell 1, the defect that a heat collection plate, a heat collection tube and the like are independently prepared in the prior art is overcome, and the assembly of later-stage equipment is facilitated; meanwhile, the radiating block 5 is directly attached to the corresponding functional element 18, so that the radiating efficiency can be effectively improved, the defect that heat is absorbed by the heat collecting plate and then transferred to the heat collecting pipe and then transferred to the shell 1 in the prior art is avoided, and the radiating efficiency and the radiating performance are improved.

In particular, in order to facilitate further improving the heat dissipation efficiency, in this embodiment, heat dissipation teeth 4 that are uniformly and intermittently arranged along the same direction at the top of the housing 1 are also improved; specifically, the side wall of each heat dissipation tooth 4 adjacent to the adjacent heat dissipation tooth 4 is provided with a wavy surface 6 extending from top to bottom, and two adjacent wavy surfaces 6 in two adjacent heat dissipation teeth 4 are symmetrically arranged about the center of the two.

Through the arrangement, on one hand, compared with a vertical plane, the heat dissipation area of the heat dissipation teeth 4 can be effectively increased by means of the wavy surface 6, and on the other hand, the symmetrical arrangement of the adjacent wavy surfaces 6 in the two adjacent heat dissipation teeth 4 is convenient for the whole preparation of the shell 1; the whole body formed by the shell 1, the radiating block 5 and the radiating teeth 4 is integrally processed by adopting metal materials.

Particularly, in order to further increase the radiating surface, the cross section of the bottom of the radiating groove 7 between two adjacent radiating teeth 4 is in a downward convex arc shape, so that the radiating area can be effectively increased compared with a plane.

In particular, in order to facilitate the improvement of the heat transfer efficiency between the heat-dissipating block 5 and the functional element 18, a heat-conducting silicone layer 8 is further provided between the two, on the one hand for filling the gap between the two, and on the other hand, the heat transfer efficiency can be improved by means of the heat-conducting silicone layer 8.

In particular, in order to avoid unstable heat transfer process, in this embodiment, each functional element 18 is further made to correspond to a plurality of connection screws 16 (not less than two), the head of each connection screw 16 is disposed below the printed board 2, and the top end of the screw portion of each connection screw passes through the printed board 2 and then is connected with the corresponding heat dissipation block 5, and when connection is completed, the connection screw 16 fixes the relative positions among the printed board 2, the corresponding functional element 18 and the heat dissipation block 5; the connecting screw 16 serves to stabilize the contact relationship between the functional element 18 and the corresponding heat dissipation block 5, and serves to assist in connecting the printed board 2 and the housing 1; in fig. 1 and 2, the connecting screw 16 passes through the corresponding functional element 18 and is connected with the corresponding heat dissipation block 5, and the connecting screw 16 can absorb heat in the corresponding functional element 18 to conduct at this time, so as to accelerate heat dissipation.

In some embodiments, referring to fig. 4, in order to further increase the heat dissipation effect, the screw portion is made up of a portion a16-1 located above and a portion B16-2 connected to the head portion located below; the part A16-1 and the part B16-2 are coaxially distributed, and the outer diameter of the part A16-1 is smaller than that of the part B16-2; the external part of the top end of the part A16-1 is provided with internal threads (used for being connected with the corresponding radiating block 5), the other part is a smooth outer wall, and the outer wall of the part B16-2 is provided with internal threads (used for being connected with the cover plate 3 in a threaded manner or not, and the connection of the printed board 2 is carried out by means of the head).

The top end of the part A16-1 passes through the printed board 2 and is in threaded connection with the corresponding heat dissipation block 5; and the part of the part A16-1 between the corresponding radiating block 5 and the corresponding part B16-2 is sleeved with a heat conducting block 19.

When the connection is completed, the functional element 18 is located between all the corresponding connection screws 16.

The top of the heat conducting block 19 is attached to the corresponding heat dissipating block 5 (clamped and fixed by the corresponding part B16-2 and the corresponding heat dissipating block 5), and the heat conducting block 19 is made of metal, so that heat can be quickly absorbed and transferred to the heat dissipating teeth 4 at the top of the shell 1 through the heat dissipating block 5 for dissipating heat, and heat dissipation is accelerated; secondly, the heat conducting blocks 19 can also play a role of supporting the interval, so that the defect that the printed board 2 is pressed when the connecting bolts are excessively screwed is avoided.

In some embodiments, the heat dissipation block 5 may be provided with a groove (not shown in the figure) corresponding to the corresponding heat conduction block 19, so as to limit the heat conduction block 19, so that the heat conduction block 19 and the corresponding heat dissipation block 5 (the top of the groove when the groove is provided) are provided with a heat conduction silica gel layer, so that heat conduction can be accelerated.

Particularly, in order to further improve the heat dissipation efficiency, a heat collection part 9 integrated with the shell 1 is further arranged on the top of the inner cavity of the shell 1, and the heat collection part 9 can be a heat collection groove formed on the top of the inner cavity of the shell 1 or a heat collection tooth formed on the top of the inner cavity of the shell 1, namely, the heat collection part 9 aims to increase the contact area between the inner wall of the shell 1 and the space in the shell 1, so that the heat dissipated in the inner cavity of the shell 1 is absorbed as much as possible, and is transferred to the heat dissipation tooth 4 to dissipate the heat, so that the heat dissipation efficiency is improved; when the heat collecting teeth are arranged, the heat collecting teeth are not contacted with the printed board 2 and the functional elements 18 on the printed board 2, so that the influence on the normal operation of the equipment is avoided; and the heat collecting teeth and the heat collecting grooves can be of wave-shaped structures, so that the heat absorbing area is increased, and the heat dissipating rate is improved.

In particular, in some embodiments, in order to reduce the difficulty in manufacturing the housing 1, the heat collecting portion 9 and the housing 1 may be manufactured separately, and during installation, the heat collecting portion 9 is sleeved on the portion a16-1 of the one or more connecting screws 16, and the top ends of the corresponding connecting screws 16 are fixedly connected with the top of the inner cavity of the housing 1 (not shown in the figure); namely, the top ends of the plurality of heat dissipation teeth 4 are connected with each other, and one or a plurality of heat dissipation teeth 4 are sleeved on corresponding connecting screws 16 for connecting with the top of the inner cavity of the shell 1; thereby effectively reducing the difficulty of preparing the shell 1.

Wherein, the inner cavity of the shell 1 is also provided with a plurality of supporting posts 17 which are integrated with the inner cavity and are used for supporting and connecting the printed board 2.

In order to keep the bottom of the shell 1 flat, the bottom of the shell 1 is also provided with a sinking groove 14 communicated with the open end of the bottom of the shell 1, and the cover plate 3 is arranged in the sinking groove 14 and is connected with the shell 1 through a plurality of sunk screws 15.

Next, one end of the printed board 2 is connected to a VPX connector 10 provided outside the housing 1 for enabling the device as a whole to establish connection with an external device; meanwhile, in order to facilitate the whole plugging operation of the equipment, two sides of the shell 1 are respectively provided with a guide rail 12 integrated with the shell, and each guide rail 12 is provided with a locking bar 13; i.e. the whole device is inserted into the corresponding use environment by means of two guide rails 12 and its position is fixed by means of two locking bars 13.

Based on the foregoing, the application provides a 6UVPX vehicle-mounted power supply structure, can effectually avoid among the prior art shortcoming such as heat radiation structure complicacy influence installation effectiveness, can effectually improve heat radiation effectiveness with the help of radiating block 5, wave surface 6, heat collecting part 9 etc. and the defect that needs extra steps such as increase installation heat collecting plate, heat collecting plate in the assembly process has been avoided to the setting of integral structure simultaneously, has improved equipment installation effectiveness.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a 6UVPX vehicle-mounted power supply structure which is characterized in that, including casing, apron and printing board, the apron is installed in the casing bottom, the casing top evenly is provided with a plurality of homodromous and evenly spaced apart radiating tooth, the printing board erects and installs in the casing inner chamber, functional element on the printing board is in between printing board and the casing inner chamber top, every functional element's top is laminated with a radiating block respectively, all the radiating block with the casing is connected and is integrated into one piece structure; the side wall of each heat dissipation tooth adjacent to the adjacent heat dissipation tooth is a wavy surface extending from top to bottom, and two adjacent wavy surfaces in the two adjacent heat dissipation teeth are symmetrically arranged about a vertical surface at the center of the two adjacent wavy surfaces; the top of the inner cavity of the shell is also provided with a plurality of heat collecting parts which are integrated with the shell, and the heat collecting parts are not contacted with the printed board and the functional elements on the printed board; the heat collecting part is specifically a heat collecting groove arranged on the top of the inner cavity of the shell or heat collecting teeth arranged on the top of the inner cavity of the shell.

2. The 6uv px vehicle-mounted power supply structure of claim 1, wherein a heat sink is further provided between two adjacent heat sink teeth, and the cross section of the heat sink is in a shape of a downward convex arc.

3. The 6uv px vehicle-mounted power supply structure of claim 1, wherein each of said functional elements corresponds to a plurality of connection screws, the head of each of said connection screws is disposed below the printed board, and the top end of the screw portion of each of said connection screws penetrates the printed board and is connected to the corresponding heat dissipating block.

4. A 6uv px vehicle-mounted power supply structure according to claim 3, wherein each of said functional elements has a corresponding connection screw provided on the outside thereof, said screw portion being constituted by a portion a located above and a portion B located below and connected to the head; the part A and the part B are coaxially distributed, and the outer diameter of the part A is smaller than that of the part B; the top end of the part A passes through the printed board and is in threaded connection with the corresponding radiating block; and a heat conducting block is sleeved on the part of the part A between the corresponding heat radiating block and the corresponding part B.

5. The 6uv px vehicle power supply structure of claim 1, wherein one end of said printed board is connected with a VPX connector provided outside the housing.

6. The 6uv px vehicle power supply structure of claim 5, wherein a pull-out aid is mounted on each side of said housing end facing away from the VPX connector.

7. The 6uv px vehicle-mounted power supply structure of claim 1, wherein two sides of said housing are respectively provided with a rail integral therewith, said rails having locking strips mounted thereon.

8. The 6uv px vehicle-mounted power supply structure of claim 1, wherein a heat conductive silica gel layer is further disposed between said functional element and the corresponding heat sink.

9. The 6uv px vehicle-mounted power supply structure of claim 1, wherein said housing bottom has a sink in communication with the bottom open end thereof, said cover plate is disposed in the sink and is connected to the housing by a plurality of countersunk screws.

10. The 6uv px vehicle-mounted power supply structure of claim 1, wherein said housing further comprises a plurality of struts for mounting connection printed boards.