Point power supply

Abstract

The utility model discloses a point power supply, the point power supply comprises a power supply main body and a voltage regulation module, the power supply main body comprises a housing, a circuit substrate, a power supply circuit module, a through hole, a packaging pin and a first conductor, the circuit substrate and the housing together enclose an accommodating cavity of the housing, the power supply circuit module is installed on a first side of the circuit substrate, and the power supply circuit module is installed on a second side of the circuit substrate. The second side of the circuit substrate is provided with packaging pins, the first side faces the containing cavity, the first side and the second side are opposite side faces, and the packaging pins extend out of the shell. The first conductor is electrically connected with the power circuit, the through hole is formed in the side face of the shell, the first conductor is exposed, the voltage adjusting module is arranged on the outer side face of the shell, and the voltage adjusting module is detachably and electrically connected with the first conductor. Therefore, the magnitude of the output voltage can be flexibly adjusted by replacing the voltage adjusting module, and the voltage adjusting module is not installed on the circuit substrate, so that the occupied space and area of the circuit substrate are reduced.

Description

Technical Field

[0001] This utility model relates to the field of power supplies, and in particular to a point power supply. Background Technology

[0002] A point power supply provides continuous or pulsed power to the load. If all modules of the point power supply are packaged together, it can only output a single power supply with a fixed output voltage. At the same time, packaging all modules together will occupy a large PCB board area, resulting in a larger point power supply area, which is not conducive to supporting high integration and high density design of point power supplies. Utility Model Content

[0003] The present invention aims to provide a point power supply that allows for more flexible adjustment of the output voltage.

[0004] To solve the above-mentioned technical problems, the present invention provides a point power supply, comprising: a power supply body and a voltage regulation module;

[0005] The power supply body includes a housing, a circuit board, a power circuit module, and packaging pins. The circuit board and the housing together form a receiving cavity of the housing. The power circuit module is mounted on a first side of the circuit board, and the packaging pins are provided on a second side of the circuit board. The first side is the side facing the receiving cavity. The first side and the second side are opposite sides, and the packaging pins extend out of the housing. The power circuit is used to respond to the input of the input voltage and output the output voltage.

[0006] The power supply body further includes a through hole and a first conductor, the first conductor being electrically connected to the power circuit module. The through hole is located on the side of the housing and exposes the first conductor; and...

[0007] The voltage regulation module is located on the outer side of the housing, and the voltage regulation module is detachably electrically connected to the first conductor through the through hole. The voltage regulation module is used to regulate the output voltage.

[0008] In some embodiments, the first conductor includes at least one of a communication port, a jumper, a wire, a solder joint, a solder port, and a DIP switch.

[0009] In some embodiments, the voltage regulation module includes a resistance regulation unit and a second conductor. The resistance regulation unit is disposed on the outer side of the housing and is electrically connected to the second conductor. The second conductor is detachably electrically connected to the first conductor through the through hole. The resistance regulation unit is used to regulate the output voltage of the power circuit module.

[0010] In some embodiments, the resistance adjustment unit includes a potentiometer and a rotary button. The potentiometer is electrically connected to the second conductor, and the rotary button is disposed on the outer side of the housing. The potentiometer is used to adjust the resistance of the resistance adjustment unit in response to the action of the rotary button, so as to adjust the output voltage of the power supply circuit module.

[0011] In some embodiments, the second conductor includes at least one of a communication port, a jumper, a wire, a solder joint, a solder port, and a DIP switch.

[0012] In some embodiments, the power supply circuit module includes a non-isolated buck regulator circuit module and / or a constant current source module with two ends and / or a buck-boost circuit module.

[0013] In some embodiments, the package pins include one of ball solder joint pins, through-hole pins, and copper clip pins.

[0014] In some embodiments, if the package pin is a through-hole pin, then the through-hole pin is a flat pin.

[0015] In some embodiments, the housing includes five sides, and the circuit board is square or rectangular.

[0016] In some embodiments, the housing includes four sides, and the circuit board is L-shaped.

[0017] The beneficial effects of this utility model embodiment are as follows: Unlike existing technologies, this utility model provides a point power supply, including a power supply body and a voltage regulation module. The power supply body includes a shell, a circuit board, a power circuit module, a through-hole, encapsulation pins, and a first conductor. The circuit board and the shell together form a receiving cavity of the shell. The power circuit module is mounted on a first side of the circuit board, and the second side of the circuit board has encapsulation pins. The first side faces the receiving cavity, and the first and second sides are opposite sides, with the encapsulation pins extending out of the shell. The first conductor is electrically connected to the power circuit. The through-hole is located on the side of the shell, exposing the first conductor. The voltage regulation module is located on the outer side of the shell and is detachably electrically connected to the first conductor through the through-hole. The power circuit module responds to the input voltage and outputs an output voltage. The voltage regulation module is electrically connected to the power circuit module through the first conductor and adjusts the magnitude of the output voltage. Therefore, the voltage regulation module in this power supply is a detachable module. By replacing the voltage regulation module, the output voltage can be flexibly adjusted. Furthermore, the voltage regulation module is electrically connected to the power supply circuit module through the first conductor and is not installed on the circuit board, thus reducing the space and area occupied by the circuit board. Attached Figure Description

[0018] Figure 1This is an exploded view of a point power supply provided in one embodiment of the present invention;

[0019] Figure 2 This is a circuit diagram of a power supply circuit module and a voltage regulation module provided in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the package pins of a point power supply provided in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the package pins of a point power supply provided in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a point power supply provided in an embodiment of this utility model;

[0023] Figure 6 This is a circuit diagram of a power supply circuit module and a voltage regulation module provided in an embodiment of the present utility model;

[0024] Figure 7 This is a circuit diagram of a welding port provided in an embodiment of the present invention;

[0025] Figure 8 This is a circuit diagram of a DIP switch provided in an embodiment of the present invention;

[0026] Figure 9 This is a circuit diagram of a communication port provided in an embodiment of the present utility model;

[0027] Figure 10 This is a circuit diagram of a welding point provided in an embodiment of the present invention;

[0028] Figure 11 This is a circuit diagram of a point power supply provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of a rotary button K provided in an embodiment of this utility model. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] A point-of-load power supply (POL) is a power supply unit that can be directly mounted on a printed circuit board. Its key feature is its ability to power application-specific integrated circuits (ASICs), digital signal processors (DSPs), microprocessors, memory, field-programmable gate arrays (FPGAs), and other digital or analog loads. Generally, these modules are called point-of-load power supply systems (POLs) or point-of-use power supply systems (PUPSs). Due to the numerous advantages of their modular structure, modular power supplies are widely used in communication fields such as switching equipment, access equipment, mobile communications, microwave communications, optical transmission, and routers, as well as in automotive electronics and aerospace.

[0033] The packaging of a chip or integrated circuit refers to the outer casing used to mount a semiconductor integrated circuit chip. It not only serves to mount, fix, seal, and protect the chip, and enhance its electrical and thermal performance, but also connects the chip's contacts to the pins of the package casing via wires. These pins, in turn, connect to other devices on the printed circuit board, thus enabling the connection between the internal chip and external circuitry. On the one hand, it isolates the chip from the external environment, preventing impurities in the air from corroding the chip's circuitry and causing a decline in electrical performance; on the other hand, the packaged chip is easier to install and transport.

[0034] A point power supply is based on the input voltage and output voltage to provide continuous or pulsed power to the load. If all modules of a point power supply are packaged together, it can only output a single power supply with a fixed output voltage. In addition, packaging all modules together will occupy a large area of ​​PCB board (circuit board), resulting in a large area of ​​point power supply, which is not conducive to supporting high integration and high density design of point power supplies.

[0035] For the reasons mentioned above, this utility model provides a point power supply that can flexibly adjust the output voltage and reduce the space and area occupied by the circuit board.

[0036] Please refer to the following: Figure 1 and Figure 2The power supply includes a power supply body 10 and a voltage regulation module 20. The power supply body 10 includes a housing 11, a circuit board 12, a power circuit module 13, package pins 14, through-holes 15, and a first conductor 16. The housing 11 is the encapsulation housing of the power supply, which can be a plastic-encapsulated housing or a ceramic-encapsulated housing. The housing 11 has five sides or four sides. If the housing 11 has five sides, the circuit board 12 is square or rectangular; if the housing 11 has four sides, the circuit board 12 is L-shaped. The circuit board 12 and the sides of the housing 11 together form a receiving cavity. Figure 1 The case is illustrated by an example where the outer casing 11 has four sides and the circuit board 12 is L-shaped.

[0037] The number of through holes 15 can be one or more, depending on the needs. They can be located on one side of the housing 11 or on multiple sides of the housing 11. Figure 1 The example shown is that multiple through holes 15 are provided on one side of the housing 11.

[0038] The circuit board 12 is a printed circuit board, also known as a PCB, which provides electrical connections for electronic components. Its design mainly involves layout design. Electronic components are mounted on the circuit board 12 through soldering, placement, surface mounting, and other methods. The main advantage of using the circuit board 12 is that it greatly reduces wiring and assembly errors, and improves automation and production.

[0039] In some embodiments, the power circuit module 13 is mounted to a first side of the circuit board 12 by means of mounting, soldering, or surface mounting, and a second side of the circuit board 12 is provided with packaging pins 14. The first side is the side facing the receiving cavity, and the first and second sides are opposite sides. The packaging pins 14 extend out of the housing 11. Figure 1 The example shown is a ball-shaped solder joint pin 14.

[0040] Package pin 14 is a pin that enables electrical connection between the power supply and the external environment. For example, package pin 14 can be an input pin, an output pin, or a ground pin for the power supply.

[0041] The package pin 14 is related to the package type of the power supply. Power supplies are generally packaged using dual in-line packages (DIP) or ball grid array (BGA) packages. Dual in-line packages, also known as DIP (Dual In-line Package) packages or DIP packaging, are a type of integrated circuit packaging. The integrated circuit is rectangular or rectangular in shape, with two rows of parallel metal leads on both sides, called pins. Components in DIP packages can be soldered into plated through-holes on a printed circuit board (PCB) or inserted into a DIP socket, suitable for through-hole mounting on PCBs.

[0042] In some embodiments, if package pin 14 is a pin, the pin is a flat pin; in other embodiments, the pin is a cylindrical pin.

[0043] Ball grid array (BGA) packaging involves creating an array on the bottom of the package substrate. Ball-shaped solder joints serve as the I / O terminals of the circuit and interconnect with the circuit board (PCB). BGA packages come in various types, with shapes such as square or rectangular. They are suitable for applications with a large number of I / O pins on integrated circuits or chips. Devices packaged using this technology are surface mount devices.

[0044] If package pin 14 is a BGA package pin, it can be as follows: Figure 1 The spherical solder joint pins are shown.

[0045] In some embodiments, the package pin 14 may also be as follows: Figure 3 The square copper clip pins shown can also be used as follows: Figure 4 The circular copper clip pins shown.

[0046] The number of package pins 14 is the same as the number of I / O pins of the power supply module, for example: Figure 3 The point power supply shown includes two package pins 14, so the point power supply has two I / O pins. Figure 4 The point power supply shown includes four package pins 14, so the point power supply has four I / O pins.

[0047] In some embodiments, package pin 14 includes not only point power supply I / O pins, but also other custom pins, such as point power supply ground pins, or other required pins.

[0048] In some embodiments, the power supply circuit module 13 is a module that implements the function of a point power supply. For example, if the point power supply is a non-isolated buck regulator, then the power supply circuit module 13 is a non-isolated buck regulator circuit module; if the point power supply is a non-isolated boost regulator, then the power supply circuit module 13 is a non-isolated boost circuit module; if the point power supply is a non-isolated buck regulator, then the power supply circuit module 13 is a non-isolated buck circuit module; if the point power supply is a constant current source at both ends, then the power supply circuit module 13 is a constant current source module at both ends.

[0049] In some embodiments, the power supply circuit module 13 may also be any combination of a non-isolated buck regulator circuit module, a two-terminal constant current source module, and a buck-boost circuit module.

[0050] The power supply circuit module 13 includes power devices, which can be integrated devices or discrete devices, such as high-power devices like field-effect transistors and inductors. Non-power devices are those in the power supply 100 that generate less heat, and can be integrated devices or independent devices, such as low-power components like capacitors, resistors, and diodes.

[0051] Please refer to the following: Figure 2 and Figure 5 The first conductor 16 is electrically connected to the power circuit module 13, and the through hole 15 ( Figure 5 (Not shown in the image) is disposed on the side of the housing 11, and the first conductor 16 is exposed. The voltage regulation module 20 is disposed on the outer side of the housing 11 (…). Figure 5 Taking the voltage regulation module 20 located on the top side of the housing 11 as an example, and the voltage regulation module 20 passing through the through hole 15 ( Figure 5 (Not shown in the image) is detachably electrically connected to the first conductor 16. Figure 2 The dashed line in the middle indicates a detachable electrical connection.

[0052] The power supply circuit module 13 is used to respond to the input voltage and output the output voltage. The voltage regulation module 20 is electrically connected to the power supply circuit module 13 through the first conductor 16 and adjusts the magnitude of the output voltage.

[0053] Therefore, the voltage regulation module 20 in this power supply is a detachable module. By replacing the voltage regulation module 20, the output voltage can be flexibly adjusted. Furthermore, the voltage regulation module 20 is electrically connected to the power circuit module 13 through the first conductor 16 and is not installed on the circuit board 12, which reduces the space and area occupied by the circuit board 12 and is more conducive to the high integration and high density design of the power supply.

[0054] In some embodiments, such as Figure 6 As shown, the voltage regulation module 20 includes a resistance regulation unit 21 and a second conductor 22. The resistance regulation unit 21 is located on the outer side of the housing 11. The resistance regulation unit 21 is electrically connected to the second conductor 22. The second conductor 22 is electrically connected to the first conductive detachable electrical connection through the through hole 15. The resistance regulation unit 21 is used to regulate the output voltage of the power supply circuit module 13.

[0055] In some embodiments, the resistance adjustment unit 21 is a variable resistor, such as a potentiometer or one or more variable resistors. The resistance adjustment unit 21 can also be a fixed resistor; by changing the resistance value of the fixed resistor, the resistance value of the resistance adjustment unit 21 is changed. By changing the resistance value of the resistance adjustment unit 21, the output voltage of the power supply circuit module 13 is adjusted.

[0056] In some embodiments, the first conductor 16 includes at least one of a communication port, a jumper, a wire, a solder joint, a solder port, and a DIP switch.

[0057] For example: Figure 7 As shown, the first conductor 16 is a welding port through which the resistance adjustment unit 21 can be welded. Figure 8 As shown, the first conductor 16 is a DIP switch, which is electrically connected to the resistance adjustment unit 21. By changing the contact position of the DIP switch, the resistance value of the power supply circuit module 13 is adjusted. Figure 9 As shown, the first conductor 16 is a communication port, and the output voltage of the power supply circuit is adjusted by the electrical connection between the resistor adjustment unit 21 and the communication port. Figure 10 As shown, the first conductor 16 is a welding point, and the resistance adjustment unit 21 achieves electrical connection with the power supply circuit module 13 by welding to the welding point.

[0058] In some embodiments, the second conductor 22 includes at least one of a communication port, a jumper, a wire, a solder joint, a solder port, and a DIP switch.

[0059] It should be noted that the first conductor 16 and the second conductor 22 can also be a combination of various forms such as communication ports, jumpers, wires, solder joints, solder ports, and DIP switches.

[0060] In some embodiments, the resistance adjustment unit 21 includes a potentiometer R and a rotary button K. The potentiometer R is electrically connected to the second conductor 22, and the rotary button K is disposed on the outer side of the housing 11. The potentiometer R is used to adjust the resistance of the resistance adjustment unit 21 in response to the action of the rotary button K, so as to adjust the output voltage of the power supply circuit module 13.

[0061] potentiometer R such Figure 11 As shown, both the second conductor 22 and the first conductor 16 are wires. The potentiometer R is electrically connected to the power supply circuit module 13 via the wires. The circuit components of the power supply circuit module 13 are shown as an example of a non-isolated step-down circuit. The rotary button K is as follows... Figure 10 As shown, it is disposed on the outer side of the outer casing 11. Figure 12 A rotary knob K is provided on the top side of the housing 11, and the top side of the housing 11 is arranged opposite to the circuit board 12, as an example. By turning the rotary knob K, the resistance of the potentiometer R is adjusted, thereby adjusting the output voltage of the power supply circuit module 13. For example, turning the rotary knob K can make the output voltage 1V, 2.5V, 3.3V, 5V, and other desired fixed output voltages.

[0062] In summary, the voltage regulation module in this power supply is a detachable module. By replacing the voltage regulation module, the output voltage can be flexibly adjusted. Furthermore, the voltage regulation module is electrically connected to the power circuit module through the first conductor and is not installed on the circuit board, which reduces the space and area occupied by the circuit board and is more conducive to the high integration and high density design of the power supply.

[0063] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A point power supply, characterized in that, include: Power supply unit and voltage regulation module; The power supply body includes a housing, a circuit board, a power circuit module, and packaging pins. The circuit board and the housing together form a receiving cavity of the housing. The power circuit module is mounted on a first side of the circuit board, and the packaging pins are provided on a second side of the circuit board. The first side is the side facing the receiving cavity. The first side and the second side are opposite sides, and the packaging pins extend out of the housing. The power circuit is used to respond to the input of the input voltage and output the output voltage. The power supply body further includes a through hole and a first conductor, the first conductor being electrically connected to the power circuit module. The through hole is located on the side of the housing and exposes the first conductor; and... The voltage regulation module is located on the outer side of the housing, and the voltage regulation module is detachably electrically connected to the first conductor through the through hole. The voltage regulation module is used to regulate the output voltage.

2. The point power supply according to claim 1, characterized in that, The first conductor includes at least one of a communication port, a jumper wire, a wire, a solder joint, a solder port, and a DIP switch.

3. The point power supply according to claim 1, characterized in that, The voltage regulation module includes a resistance regulation unit and a second conductor. The resistance regulation unit is disposed on the outer side of the housing and is electrically connected to the second conductor. The second conductor is detachably electrically connected to the first conductor through the through hole. The resistance regulation unit is used to regulate the output voltage of the power circuit module.

4. The point power supply according to claim 3, characterized in that, The resistance adjustment unit includes a potentiometer and a rotary button. The potentiometer is electrically connected to the second conductor, and the rotary button is located on the outer side of the housing. The potentiometer is used to adjust the resistance of the resistance adjustment unit in response to the action of the rotary button, so as to adjust the output voltage of the power circuit module.

5. The point power supply according to claim 3, characterized in that, The second conductor includes at least one of a communication port, a jumper, a wire, a solder joint, a solder port, and a DIP switch.

6. The point power supply according to any one of claims 1-5, characterized in that, The power supply circuit module includes a non-isolated buck regulator circuit module and / or a constant current source module at both ends, and / or a buck-boost circuit module.

7. The point power supply according to any one of claims 1-5, characterized in that, The package pins include at least one of ball solder joint pins, through-hole pins, and copper clip pins.

8. The point power supply according to claim 7, characterized in that, If the package pin is a through-hole pin, then the through-hole pin is a flat pin.

9. The point power supply according to any one of claims 1-5, characterized in that, The housing includes five sides, and the circuit board is square or rectangular.

10. The point power supply according to any one of claims 1-5, characterized in that, The housing includes four sides, and the circuit board is L-shaped.

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