A chassis power supply structure

Abstract

The present invention discloses a chassis power supply structure, comprising a chassis and a circuit board, a main transformer, a resonant inductor, a high-voltage capacitor, and a boost inductor arranged in the chassis; the main transformer and the high-voltage capacitor are arranged at a left-right spacing at a front section of an upper end of the circuit board, and the resonant inductor and the boost inductor are arranged at a left-right spacing at a rear section of an upper end of the circuit board, and are located on the rear side of the main transformer and the high-voltage capacitor; the main transformer comprises a first E-shaped magnetic core, a first intermediate magnetic core, and a first coil; the resonant inductor comprises a second E-shaped magnetic core, a second intermediate magnetic core, and a second coil; the boost inductor comprises a third E-shaped magnetic core, a third intermediate magnetic core, and a third coil; in this way, through the design of the main transformer, the resonant inductor, and the boost inductor, high-power use of the chassis power supply is achieved, and the traditional use of multiple transformers and multiple inductors arranged on the circuit board inside the chassis power supply is eliminated, which is conducive to the miniaturized design of the chassis power supply and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to power supply technology, and in particular to a chassis power supply structure. Background Art

[0002] With the development of science and technology, computers have gradually become one of the indispensable machines in daily work and life. The computer case usually contains components such as CPU, motherboard, hard disk, memory stick, graphics card, optical drive and chassis power supply. The chassis power supply is used to convert 220V AC power into DC power and specifically supply power to components such as CPU, motherboard, hard disk, memory stick, graphics card, optical drive, etc. It is the power supply hub for various components of the chassis and an important part of the computer. As the chassis power supply is developing towards high power and high integration, the transformer and inductor are indispensable components of the chassis power supply.

[0003] In the prior art, a chassis power supply adds multiple transformers and multiple inductors on a circuit board to achieve high-power use of the chassis power supply; however, its structural design is poor. The provision of multiple transformers and multiple inductors increases the overall volume of the chassis power supply, resulting in a large layout space between the various components inside the chassis power supply, which is not conducive to the high-power and miniaturized use of the chassis power supply. As a result, the chassis power supply affects the size of the chassis and has a small scope of application.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a chassis power supply structure, which achieves high-power use of the chassis power supply through the design of a main transformer, a resonant inductor and a boost inductor, and eliminates the traditional use of multiple transformers and multiple inductors set on the circuit board inside the chassis power supply, which is conducive to the miniaturized design of the chassis power supply and has a wide range of applications.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A chassis power supply structure includes a chassis and a circuit board, a main transformer, a resonant inductor, a high-voltage capacitor, and a boost inductor disposed in the chassis; wherein:

[0008] The main transformer and high-voltage capacitor are arranged at the upper front section of the circuit board with left and right spacing, and the resonant inductor and boost inductor are arranged at the upper rear section of the circuit board with left and right spacing, and are located behind the main transformer and high-voltage capacitor;

[0009] The main transformer includes a first E-shaped magnetic core, a first intermediate magnetic core, and a first coil. Two first E-shaped magnetic cores are provided, and the two first E-shaped magnetic cores are respectively provided on both sides of the first intermediate magnetic core and arranged opposite to each other. The first E-shaped magnetic core has two first sides and a first center column provided between the two first sides. Ends of the first sides and an end of the first center column contact the first intermediate magnetic core. The first coil is provided on the first center column.

[0010] The resonant inductor includes a second E-shaped magnetic core, a second intermediate magnetic core, and a second coil. Two second E-shaped magnetic cores are provided, and the two second E-shaped magnetic cores are respectively provided on both sides of the second intermediate magnetic core and arranged opposite to each other. The second E-shaped magnetic core has two second sides and a second center column provided between the two second sides. Ends of the second sides and an end of the second center column contact the second intermediate magnetic core. The second coil is provided on the second center column.

[0011] The boost inductor includes a third E-type magnetic core, a third intermediate magnetic core and a third coil. There are two third E-type magnetic cores, which are respectively arranged on both sides of the third intermediate magnetic core and arranged opposite to each other. The third E-type magnetic core has two third sides and a third middle column arranged between the two third sides. The ends of the third sides and the end of the third middle column are in contact with the third intermediate magnetic core, and the third coil is arranged on the third middle column.

[0012] As a preferred solution, the circuit board includes a main circuit board, a PWM control circuit board, a PFC control circuit board and an output backplane. The main transformer, resonant inductor, high-voltage capacitor and boost inductor are all arranged on the main circuit board. The PWM control circuit board is arranged on the left side of the main circuit board, the PFC control circuit board is arranged on the right side of the main circuit board, and the output backplane is arranged on the front side of the main circuit board. The front end of the output backplane has several female sockets for plugging in power cords, and the front ends of the several female sockets are exposed outside the box.

[0013] As a preferred solution, a limiting portion is provided on the upper end of the female seat, a limiting opening is provided on the box body corresponding to the limiting portion, and the limiting portion is provided at the limiting opening.

[0014] As a preferred solution, an auxiliary circuit board is also provided, the front end of which is provided at the rear side of the upper end of the output backplane and above the main circuit board, and the auxiliary circuit board is connected to the output backplane.

[0015] As a preferred solution, the box body has a positioning step extending inward, and the lower end of the auxiliary circuit board is restricted on the positioning step.

[0016] As a preferred solution, a bridge rectifier is provided on the circuit board, and the bridge rectifier is provided between the boost inductor and the resonant inductor.

[0017] As a preferred solution, a resonant capacitor is provided on the circuit board, and the resonant capacitor is provided on one side of the resonant inductor and located at the rear side of the main transformer.

[0018] As a preferred solution, two resonant capacitors are provided and are respectively arranged on the left and right sides of the resonant inductor.

[0019] As a preferred solution, the box body includes a main box body, a bottom plate and a top plate, the bottom plate and the top plate are respectively arranged at the lower end and the upper end of the main box body and surround a cavity, the circuit board, main transformer, resonant inductor, high-voltage capacitor and boost inductor are all arranged in the cavity, the left and right sides of the bottom plate have a first positioning edge, the left and right sides of the lower end of the main box body are provided with a first recess matching the first positioning edge, the first positioning edge is adapted to be positioned on the first recess, the lower end of the main box body contacts the upper end of the bottom plate, the left and right sides of the top plate are provided with a second positioning edge, the left and right sides of the upper end of the main box body are provided with a second recess matching the second positioning edge, the second positioning edge is adapted to be positioned on the second recess.

[0020] As a preferred solution, the front and rear sides of the top plate are both provided with snap-fit edges, the front and rear sides of the upper end of the main box are both provided with slots matching the snap-fit edges, and the snap-fit edges are provided on the slots.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the overall volume of the chassis power supply is reduced mainly through the design of the main transformer, resonant inductor and boost inductor, so as to achieve high power use of the chassis power supply. The traditional multiple transformers and multiple inductors are eliminated and used on the circuit board inside the chassis power supply. This is conducive to the miniaturization design of the chassis power supply, thereby facilitating the installation and arrangement of the chassis power supply on the chassis. The structural design is ingenious and reasonable, the use is stable, the practicality is strong, and the application range is wide.

[0022] Secondly, the setting of the limiting part and the limiting opening is conducive to the assembly and positioning of the mother seat on the box body, and the positioning is accurate. At the same time, the setting of the positioning step facilitates the positioning of the auxiliary circuit board on the box body, ensuring the stable use of the auxiliary circuit board, simple operation and convenient assembly;

[0023] In addition, the arrangement of the first positioning edge, the second positioning edge and the first recess and the second recess is conducive to the assembly and positioning of the bottom plate and the top plate on the main box body, thereby improving the production efficiency of the chassis power supply, facilitating assembly and ensuring accurate positioning.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention;

[0026] Figure 2 is an exploded view of an embodiment of the present invention;

[0027] Figure 3 is a first partial enlarged schematic diagram of an embodiment of the present invention;

[0028] Figure 4 is a second partial enlarged schematic diagram of an embodiment of the present invention;

[0029] Figure 5 1 is a schematic structural diagram of a main transformer according to an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of a resonant inductor according to an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the structure of a boost inductor according to an embodiment of the present invention.

[0032] Description of the accompanying drawings:

[0033] 101. Main box 102. Bottom plate

[0034] 103, top plate 104, first positioning edge

[0035] 105, first concave position 106, second positioning edge

[0036] 107, second recess 108, heat dissipation hole

[0037] 109, air inlet 10, box

[0038] 11. Circuit board 111. Main circuit board

[0039] 112. PWM control circuit board 113. PFC control circuit board

[0040] 114, output backplane 115, female socket

[0041] 116, limit part 117, limit opening

[0042] 118, Positioning step 12, Main transformer

[0043] 121. First E-type magnetic core 122. First intermediate magnetic core

[0044] 123. First coil 124. First side

[0045] 13. Resonant inductor 131. Second E-type magnetic core

[0046] 132. Second intermediate magnetic core 133. Second coil

[0047] 134, second side 14, high-voltage capacitor

[0048] 15. Boost inductor 151. Third E-type magnetic core

[0049] 152. Third intermediate magnetic core 153. Third coil

[0050] 154, third side 16, auxiliary circuit board

[0051] 17. Bridge rectifier 18. Cooling fan

[0052] 191. Card edge 192. Card slot

[0053] 193. First guiding slope. 194. Second guiding slope. DETAILED DESCRIPTION

[0054] Please refer to Figures 1 to 7 As shown, it shows the specific structure of an embodiment of the present invention.

[0055] A chassis power supply structure includes a chassis 10 and a circuit board 11, a main transformer 12, a resonant inductor 13, a high-voltage capacitor 14, and a boost inductor 15 disposed in the chassis 10; wherein:

[0056] The main transformer 12 and the high-voltage capacitor 14 are arranged at a left-right spacing at the front end of the upper end of the circuit board 11, and the resonant inductor 13 and the boost inductor 15 are arranged at a left-right spacing at the rear end of the upper end of the circuit board 11 and are located behind the main transformer 12 and the high-voltage capacitor 14;

[0057] The main transformer 12 includes a first E-shaped magnetic core 121, a first intermediate magnetic core 122, and a first coil 123. Two first E-shaped magnetic cores 121 are provided, and the two first E-shaped magnetic cores 121 are respectively disposed on both sides of the first intermediate magnetic core 122 and arranged opposite each other. The first E-shaped magnetic core 121 has two first side edges 124 and a first center leg (not shown) disposed between the two first side edges 124. The ends of the first side edges 124 and the end of the first center leg contact the first intermediate magnetic core 122. The first coil 123 is disposed on the first center leg.

[0058] The resonant inductor 13 includes a second E-shaped magnetic core 131, a second intermediate magnetic core 132, and a second coil 133. Two second E-shaped magnetic cores 131 are provided, and the two second E-shaped magnetic cores 131 are respectively disposed on both sides of the second intermediate magnetic core 132 and arranged opposite each other. The second E-shaped magnetic core 132 has two second side edges 134 and a second center leg (not shown) disposed between the two second side edges 134. The ends of the second side edges 134 and the end of the second center leg contact the second intermediate magnetic core 132. The second coil 133 is disposed on the second center leg.

[0059] The boost inductor 15 includes a third E-shaped magnetic core 151, a third intermediate magnetic core 152, and a third coil 153. Two third E-shaped magnetic cores 151 are provided, and the two third E-shaped magnetic cores 151 are respectively disposed on either side of the third intermediate magnetic core 152 and arranged opposite each other. The third E-shaped magnetic core 151 has two third side edges 154 and a third center leg (not shown) disposed between the two third side edges 154. The ends of the third side edges 154 and the end of the third center leg contact the third intermediate magnetic core 152. The third coil 153 is disposed on the third center leg.

[0060] In this embodiment, the circuit board 11 includes a main circuit board 111, a PWM control circuit board 112, a PFC control circuit board 113 and an output backplane 114. The main transformer 12, the resonant inductor 13, the high-voltage capacitor 14, and the boost inductor 15 are all arranged on the main circuit board 111. The PWM control circuit board 112 is arranged on the left side of the main circuit board 111, and the PFC control circuit board 113 is arranged on the right side of the main circuit board 111. The output backplane 114 is arranged on the front side of the main circuit board 111. The front end of the output backplane 114 has several female sockets 115 for plugging in power cords. The front ends of the several female sockets 115 are exposed outside the box 10, and the main circuit board 111 is provided with an EMI module (not shown in the figure). The EMI module is arranged on the rear side of the resonant inductor 13. Here, the female socket 1 A limiting portion 116 is provided at the upper end of 15, and a limiting opening 117 is provided on the box body 10 corresponding to the limiting portion, and the limiting portion 116 is provided at the limiting opening 117. In addition, the main transformer 12, the resonant inductor 13, and the boost inductor 15 are all connected to a control module, so that the coils on both sides of the main transformer, the resonant inductor, and the boost inductor can be used as the coil on a single side or as the coils on both sides together according to the usage; in this way, through the design of the main transformer, the resonant inductor and the boost inductor, the overall volume of the chassis power supply is reduced to achieve high-power use of the chassis power supply, and the traditional multiple transformers and multiple inductors are eliminated. The use of the circuit board inside the chassis power supply is conducive to the miniaturized design of the chassis power supply, thereby facilitating the installation and arrangement of the chassis power supply on the chassis, and the structural design is ingenious and reasonable, stable in use, highly practical, and has a wide range of applications.

[0061] An auxiliary circuit board 16 is also provided. The front end of the auxiliary circuit board 16 is provided on the rear side of the upper end of the output back plate 114 and is located above the main circuit board 111. The auxiliary circuit board 16 is connected to the output back plate 114. Here, a positioning step 118 extending inward is provided in the box body 10. The lower end of the auxiliary circuit board 16 is restricted by the positioning step 118. In this way, the positioning step is provided to facilitate the positioning of the auxiliary circuit board on the box body, thereby ensuring the stable use of the auxiliary circuit board, simple operation, and convenient assembly.

[0062] In addition, a bridge rectifier 17 is provided on the circuit board 11, and the bridge rectifier 17 is arranged between the boost inductor 15 and the resonant inductor 13. A resonant capacitor (not shown in the figure) is provided on the circuit board 11, and the resonant capacitor is arranged on one side of the resonant inductor 13 and is located on the rear side of the main transformer 12. Preferably, two resonant capacitors are provided and are respectively arranged on the left and right sides of the resonant inductor 13.

[0063] In addition, the box body 10 includes a main box body 101, a bottom plate 102 and a top plate 103. The bottom plate 102 and the top plate 103 are respectively arranged at the lower end and the upper end of the main box body 101 and are surrounded to form a chamber. The circuit board 11, the main transformer 12, the resonant inductor 13, the high-voltage capacitor 14 and the boost inductor 15 are all arranged in the chamber. The left and right sides of the bottom plate 102 have a first positioning edge 104. The left and right sides of the lower end of the main box body 101 are both provided with a first recess 105 matching the first positioning edge. The first positioning edge 104 is adapted to be positioned on the first recess 105. The lower end of the main box body 101 contacts At the upper end of the bottom plate 102, second positioning edges 106 are provided on the left and right sides of the top plate 103, and second recesses 107 matching the second positioning edges are provided on the left and right sides of the upper end of the main box body 101. The second positioning edges 106 are adapted to be positioned on the second recesses 107. Preferably, a cooling fan 18 is provided at the lower end of the top plate 103, and a cooling hole 108 is provided at the upper end of the top plate 103 corresponding to the cooling fan. An air inlet 109 is provided on the rear side of the main box body 101. This is conducive to the assembly and positioning of the bottom plate and the top plate on the main box body, thereby improving the production efficiency of the chassis power supply, facilitating assembly, and ensuring accurate positioning.

[0064] Preferably, the front and rear sides of the top plate 103 are both provided with a snap-fit edge 191, and the front and rear sides of the upper end of the main box body 101 are both provided with a slot 192 matching the snap-fit edge, and the snap-fit edge 191 is provided on the slot 192, and the left and right sides of the snap-fit edge 191 are provided with a first guide slope 193, and correspondingly, the left and right sides of the slot 192 are provided with a second guide slope 194. In this way, the setting of the snap-fit edge and the slot improves the assembly stability of the top plate on the main box body. At the same time, the setting of the first and second guide slopes is conducive to facilitating the positioning and connection operation of the snap-fit edge on the slot.

[0065] The key point of the design of the present invention is that it reduces the overall volume of the chassis power supply mainly through the design of the main transformer, resonant inductor and boost inductor, so as to achieve high power use of the chassis power supply. It eliminates the traditional use of multiple transformers and multiple inductors on the circuit board inside the chassis power supply, which is conducive to the miniaturization design of the chassis power supply and facilitates the installation and arrangement of the chassis power supply on the chassis. The structural design is ingenious and reasonable, stable in use, highly practical, and has a wide range of applications.

[0066] Secondly, the setting of the limiting part and the limiting opening is conducive to the assembly and positioning of the mother seat on the box body, and the positioning is accurate. At the same time, the setting of the positioning step facilitates the positioning of the auxiliary circuit board on the box body, ensuring the stable use of the auxiliary circuit board, simple operation and convenient assembly;

[0067] In addition, the arrangement of the first positioning edge, the second positioning edge and the first recess and the second recess is conducive to the assembly and positioning of the bottom plate and the top plate on the main box body, thereby improving the production efficiency of the chassis power supply, facilitating assembly and ensuring accurate positioning.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chassis power supply structure, characterized in that: It includes a box body and a circuit board, a main transformer, a resonant inductor, a high-voltage capacitor, and a boost inductor arranged in the box body; wherein: The main transformer and high-voltage capacitor are arranged at the upper front section of the circuit board with left and right spacing, and the resonant inductor and boost inductor are arranged at the upper rear section of the circuit board with left and right spacing, and are located behind the main transformer and high-voltage capacitor; The main transformer includes a first E-shaped magnetic core, a first intermediate magnetic core, and a first coil. Two first E-shaped magnetic cores are provided, and the two first E-shaped magnetic cores are respectively provided on both sides of the first intermediate magnetic core and arranged opposite to each other. The first E-shaped magnetic core has two first sides and a first center column provided between the two first sides. Ends of the first sides and an end of the first center column contact the first intermediate magnetic core. The first coil is provided on the first center column. The resonant inductor includes a second E-shaped magnetic core, a second intermediate magnetic core, and a second coil. Two second E-shaped magnetic cores are provided, and the two second E-shaped magnetic cores are respectively provided on both sides of the second intermediate magnetic core and arranged opposite to each other. The second E-shaped magnetic core has two second sides and a second center column provided between the two second sides. Ends of the second sides and an end of the second center column contact the second intermediate magnetic core. The second coil is provided on the second center column. The boost inductor includes a third E-shaped magnetic core, a third middle magnetic core, and a third coil. The third E-shaped magnetic cores are provided with two, and the two third E-shaped magnetic cores are respectively provided on both sides of the third middle magnetic core and arranged opposite to each other. The third E-shaped magnetic core has two third sides and a third middle column provided between the two third sides. Ends of the third sides and an end of the third middle column contact the third middle magnetic core. The third coil is provided on the third middle column. In addition, a bridge rectifier is provided on the circuit board, and the bridge rectifier is provided between the boost inductor and the resonant inductor; a resonant capacitor is provided on the circuit board, and the resonant capacitor is provided on one side of the resonant inductor and located on the rear side of the main transformer; two resonant capacitors are provided and are respectively provided on the left and right sides of the resonant inductor.

2. The chassis power supply structure according to claim 1, characterized in that: The circuit board includes a main circuit board, a PWM control circuit board, a PFC control circuit board and an output backplane. The main transformer, resonant inductor, high-voltage capacitor and boost inductor are all arranged on the main circuit board. The PWM control circuit board is arranged on the left side of the main circuit board, the PFC control circuit board is arranged on the right side of the main circuit board, and the output backplane is arranged on the front side of the main circuit board. The front end of the output backplane has several female sockets for plugging in power cords, and the front ends of the several female sockets are exposed outside the box.

3. The chassis power supply structure according to claim 2, characterized in that: A limiting portion is provided at the upper end of the female seat, a limiting opening is provided on the box body corresponding to the limiting portion, and the limiting portion is provided at the limiting opening.

4. The chassis power supply structure according to claim 2, characterized in that: An auxiliary circuit board is also provided, the front end of which is provided at the rear side of the upper end of the output back plate and above the main circuit board, and the auxiliary circuit board is connected to the output back plate.

5. The chassis power supply structure according to claim 4, characterized in that: The box body is provided with a positioning step extending inwardly, and the lower end of the auxiliary circuit board is restricted on the positioning step.

6. The chassis power supply structure according to claim 1, characterized in that: The box body includes a main box body, a bottom plate and a top plate, the bottom plate and the top plate are respectively arranged at the lower end and the upper end of the main box body and surround a cavity, the circuit board, main transformer, resonant inductor, high-voltage capacitor and boost inductor are all arranged in the cavity, the left and right sides of the bottom plate have a first positioning edge, the left and right sides of the lower end of the main box body are provided with a first recessed position matching the first positioning edge, the first positioning edge is adapted to be positioned on the first recessed position, the lower end of the main box body contacts the upper end of the bottom plate, the left and right sides of the top plate are provided with a second positioning edge, the left and right sides of the upper end of the main box body are provided with a second recessed position matching the second positioning edge, the second positioning edge is adapted to be positioned on the second recessed position.

7. The chassis power supply structure according to claim 6, characterized in that: The front and rear sides of the top plate are both provided with snap-fit edges, and the front and rear sides of the upper end of the main box are both provided with card slots matching the snap-fit edges, and the snap-fit edges are provided on the card slots.

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