Patent Publication Number: US-2022217864-A1

Title: Power supply module housing and power supply module comprising same

Description:
This application claims priority of Chinese Patent Application No. 201920927974.2, titled “POWER SUPPLY MODULE HOUSING AND POWER SUPPLY MODULE COMPRISING SAME”, filed with the China National Intellectual Property Administration on Jun. 18, 2019, which is incorporated herein by reference in its entirety. 
     FIELD 
     The present application relates to the technical field of power supply products, and in particular to a power supply module housing and a power supply module including the same. 
     BACKGROUND 
     In order to meet requirements against harsh outdoor environment such as high pollution, high radiation and the like, a power supply module, especially a natural cooling power supply module, adopts natural heat dissipation and a fully enclosed protection method for the cabinet to avoid the intrusion of corrosive gas, water mist and the like, which effectively protects internal electronic components of the natural cooling power supply module and prolongs service lives of the components. Meanwhile, in order to meet anti-theft requirements, the natural cooling power supply module adopts anti-theft screws to improve an anti-theft level of the power supply module. Due to the existence of the natural cooling power supply module with a sealed structure, in the case that a client access to mains supply or load, a top cover of the natural cooling power supply module needs to be removed to access to the mains supply or load, which may further cause a certain degree of loss in sealing performance of the natural cooling power supply module during this process. 
     SUMMARY 
     A technical problem to be solved by the present application is to provide a power supply module housing for facilitating maintenance and installation and a power supply module including the same. 
     In order to solve the above technical problem, technical solutions provided by the present application are as follows. 
     A power supply module housing includes a main housing, which is provided with a maintenance and installation opening for facilitating maintenance and installation of a power supply module, and the maintenance and installation opening is detachably covered with a skylight cover plate. 
     Further, the skylight cover plate and the main housing are respectively provided with multiple installation holes corresponding to each other. 
     Further, a long fastener or a short fastener penetrates through the installation holes. 
     Further, only one long fastener is provided; after the short fastener is detached from the main housing, the long fastener is connected to the main housing, and the skylight cover plate is capable of rotating around the long fastener. 
     Further, internal threads are provided on an inner bore surface of the installation hole provided on the skylight cover plate. 
     Further, the main housing includes a bottom housing and a top cover that are snap-fitted and mounted together, and the maintenance and installation opening is provided on the top cover. 
     Further, a stepped blocking surface is provided around the maintenance and installation opening, and the installation holes provided on the main housing are specifically provided on the blocking surface. 
     Further, a sealing rubber strip is fixed on the blocking surface. 
     Further, the top cover is further provided with a heat dissipating fin. 
     A power supply module, which includes the power supply module housing described above, wherein a connecting terminal is mounted inside the power supply module housing, and the skylight cover plate is provided at a position corresponding to the connecting terminal. 
     Beneficial effects of the present application are as follows. 
     In the present application, a maintenance and installation opening and a skylight cover plate are added to the top cover, so that the top cover does not need to be disassembled during field wiring, which simplifies procedures of field wiring and reduces risk during work at height. A long fastener with a relatively long length is provided at the upper left corner or upper right corner of the skylight cover plate, and the long fastener is preferably a screw, and the threaded post of the screw corresponding to the top cover is fully threaded, so that when the skylight cover plate is opened for wiring, the skylight cover plate and the top cover are still reliably connected, and may not completely fall off. Wiring is performed without completely disassembling the skylight cover plate. The short fastener adopts a structural design that can be loosened but may not fall off, and the short fastener is preferably a short screw. In the case that the short screws on the skylight cover plate are completely detached from the top cover, internal threads are also provided on installation holes of the skylight cover plate, so that the short fastener may not fall off from the skylight cover plate during wiring operations. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a structural schematic view of a power supply module of the present application when that short fasteners are loosened; 
         FIG. 2  is a structural schematic view of the present application after the skylight cover plate rotated a certain angle around a long fastener; 
         FIG. 3  is a structural schematic view of the present application after the skylight cover plate is fully opened. 
     
    
    
     Reference numerals include:
       10  power supply module housing     100  main housing     110  bottom housing     120  top cover     122  heat dissipating fin     130  skylight cover plate     121  installation hole     131  long fastener     132  short fastener     140  maintenance and installation opening     141  blocking surface     150  connecting terminal   

     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail with reference to the accompanying drawings and embodiments. It can be understood that the embodiments described herein are only used to illustrate the present application, rather than a limitation to the present application. 
     Embodiment 1 
     Reference is made to  FIG. 1 , which shows a preferred embodiment of the present application. The power supply module housing  10  includes a main housing  100 , which is provided with a maintenance and installation opening  140  for facilitating maintenance and installation of a power supply module, and the maintenance and installation opening  140  is detachably covered with a skylight cover plate  130 . With the power supply module housing  10  of the present application, an operator only needs to open the skylight cover plate  130  to perform wiring operation, which simplifies procedures of field wiring and reduces risk during work at height. Each of the above components is respectively described in further detail below. 
     As shown in  FIG. 2 , the main housing  100  includes a bottom housing  110  and a top cover  120  that are snap-fitted and mounted together to form a closed internal cavity for installing electrical components. The power supply module housing  10  of the present application is a natural cooling power supply module housing, and the top cover  120  is further provided with heat dissipating fins  122 . In the prior art, the top cover  120  needs to be disassembled, when a power supply module needs to be maintained or mounted, which may further cause a certain degree of loss in sealing performance of the main housing  100  during this process. 
     In the present application, the main housing  100  is provided with the maintenance and installation opening  140  for facilitating maintenance and installation of a power supply module. Specifically, as shown in  FIG. 1 , the maintenance and installation opening  140  is provided on the top cover  120 , and the maintenance and installation opening  140  is detachably covered with the skylight cover plate  130 . In the present application, when maintenance or installation is required, the wiring operation is performed only by disassembling the skylight cover plate  130  and opening the maintenance and installation opening  140 , and there is no need to disassemble the top cover  120 . This structure provides convenience for operators to operate at high altitudes, which also simplifies wiring procedures of the power supply module. 
     In order to meet requirements of high protection level of the power supply module and to ensure effective contact between the skylight cover plate  130  and the top cover  120 , a step-shaped sinking blocking surface  141  is provided around the maintenance and installation opening  140 . Correspondingly, the blocking surface  141  is provided with a groove, in which a sealing rubber strip is mounted. Of course, it can be understood that the present application does not limit a specific installation position of the sealing rubber strip, and the sealing rubber strip may also be fixed at a position of an inner surface of the skylight cover plate  130 , which corresponds to the blocking surface  141 . 
     Multiple installation holes  121  are provided on the blocking surface  141 , and multiple installation holes  121  are also provided on the skylight cover plate  130 . Each of the installation holes  121  on the blocking surface  141  corresponds to each of the installation holes on the skylight cover plate  130 . A long fastener  131  or a short fastener  132  penetrates through the installation hole  121 . The number of the long fastener  131  is only one. Specifically, the long fastener  131  is preferably a long screw, and the short fastener  132  is preferably a short screw. 
     For example, as shown in  FIG. 2  and  FIG. 3 , a long screw with a relatively long length is set at the upper left corner or upper right corner of the skylight cover plate  130 , when the skylight cover plate  130  is opened, only the remaining short screws need to be detached from the top cover  120 , and the long screw is still connected to the top cover  120 . The skylight cover plate  130  only needs to be rotated 180 degrees around the long screw during wiring operations, and there is no need to completely disassemble the skylight cover plate  130 . 
     Further, in order to facilitate high-altitude operation and reduce risk of falling objects from height, the short fasteners  132  adopt a structural design that can be loosened but may not fall off. When the short fasteners  132  on the skylight cover plate  130  are completely detached from the threads of the top cover  120 , the installation holes  121  of the skylight cover plate  130  are also provided with internal threads, so that the short fasteners  132  may not fall off from the skylight cover plate  130  during wiring operations. 
     In the present application, the maintenance and installation opening  140  and the skylight cover plate  130  are added to the top cover  120 , so that the top cover  120  does not need to be disassembled during field wiring, which simplifies procedures of field wiring and reduces risk during work at height. A long fastener  131  with a relatively long length is provided at the upper left corner or upper right corner of the skylight cover plate  130 , and the long fastener  131  is preferably a screw, and a threaded post of the screw corresponding to the top cover  120  is fully threaded, so that when the skylight cover plate  130  is opened for wiring, the skylight cover plate  130  and the top cover  120  are still reliably connected, and may not completely fall off. Wiring is performed without completely disassembling the skylight cover plate  130 . The short fasteners  132  adopt a structural design that can be loosened but may not fall off, and the short fasteners are preferably short screws. When the short screws on the skylight cover plate  130  are completely detached with the top cover  120 , internal threads are further provided on installation holes  121  of the skylight cover plate  130 , so that the short fasteners  132  may not fall off from the skylight cover plate  130  during wiring operations. 
     Embodiment 2 
     A power supply module, as shown in  FIG. 3 , includes the power supply module housing  10  described in Embodiment 1. Connecting terminals  150  are mounted inside the power supply module housing  10 , and the skylight cover plate  130  is provided at a position corresponding to the connecting terminals  150 , which facilitates an operator to perform maintenance or installation operations. 
     The above content is only the preferred embodiments of the present application. For those of ordinary skills in the art, many changes may be made to embodiments and application fields according to ideas of the present application, which all fall into the protection scope of the present application as long as these changes do not depart from the concept of the present application.