Integrally-formed power supply module of magazine type magazine

Abstract

The utility model discloses an integrally formed power supply module of a magazine type material box, the integrally formed power supply module of the magazine type material box comprises a substrate, a first voltage reduction unit and a second voltage reduction unit, the first voltage reduction unit and the second voltage reduction unit are both welded on the front surface of the substrate, the first voltage reduction unit is electrically connected with the second voltage reduction unit; the back surface of the substrate is provided with a plurality of conductive adhesive contacts, and the conductive adhesive contacts are electrically connected with the second voltage reduction unit. The front surface of the substrate is provided with a plastic packaging layer, and the plastic packaging layer covers the outer sides of the first pressure reduction unit and the second pressure reduction unit. According to the utility model, the integrated substrate has the advantage of modularization, two-stage step-down is realized through the first step-down unit and the second step-down unit, the problems of serious low-voltage long-distance voltage drop, overlarge step-down voltage difference of higher voltage and low step-down efficiency are solved, and the requirement of stable power supply is met.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to an integrally formed power supply module of a magazine-type material box. Background Art

[0002] The RDT (Reliability Demonstration Testing) test is a reliability and durability test for solid-state drives (SSDs). The principle is to pre-open the card and burn the RDT self-running program, then place the solid-state drive in a temperature-controlled environment, turn on the power, and the RDT self-running program erases, writes, saves, and reads each storage block of the flash memory chip, and generates test data. Finally, the card is opened a second time to identify and isolate the bad blocks. The RDT test is a mandatory test item for solid-state drives. Its characteristic is that it only needs to be powered on without connecting the data interface. However, in a high-temperature environment, it has extremely high requirements for the durability of its power supply and test board.

[0003] A magazine-style magazine is a three-dimensional RDT test device. Compressed storage hard drive modules are stacked layer by layer within the magazine. Testing is performed by connecting power to the conductive adhesive contacts and springs on the test plate. Compressed storage hard drive modules are powered by a low-voltage DC3.3V supply, and long power transmission distances can cause voltage drops. Furthermore, the magazine-style magazine has a high loading density, resulting in cumulative currents of tens of amperes (A), with peak currents reaching hundreds of amperes (A) at the moment of power on. This low-voltage transmission places extremely high demands on the cross-sectional area of ​​the conductors (including the spring contacts and cables).

[0004] Therefore, how to achieve stable DC3.3V power supply based on the magazine-type cartridge is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of the above problems, the present invention is proposed to provide an integrated power supply module for a magazine-type magazine that overcomes the above problems or at least partially solves the above problems.

[0006] The utility model provides an integrally formed power supply module of a magazine-type material box, and the integrally formed power supply module of the magazine-type material box includes: a substrate, a first step-down unit and a second step-down unit, the first step-down unit and the second step-down unit are both welded on the front side of the substrate, and the first step-down unit and the second step-down unit are electrically connected; a plurality of conductive glue contacts are provided on the back side of the substrate, and the conductive glue contacts are electrically connected to the second step-down unit; a plastic sealing layer is provided on the front side of the substrate, and the plastic sealing layer is covered on the outside of the first step-down unit and the second step-down unit.

[0007] Optionally, the first buck unit includes a first buck chip U1, and the product model of the first buck chip U1 is SY8366ADC.

[0008] Optionally, the first buck unit further includes an input port M1, a fuse F1, a first resistor RP1, a second resistor RH1, a third resistor RE1, a fourth resistor RE2, a fifth resistor RF1, a sixth resistor RA1, a seventh resistor RB1, a first capacitor CJ1, a second capacitor CJ2, a third capacitor CE1, a fourth capacitor CG1, a fifth capacitor CB1, a sixth capacitor CF1, a seventh capacitor CX1, an eighth capacitor CX2, a ninth capacitor CX3, a first TVS tube ZD1, a second TVS tube ZD2, and a first inductor L1; pins 5 and 6 of the first buck chip U1, one end of the first capacitor CJ1, one end of the second capacitor CJ2, the first inductor L1, and the second inductor L2. One end of the resistor RP1, one end of the fuse F1, and the positive electrode of the first TVS tube ZD1 are connected in common, the other end of the first capacitor CJ1 is grounded, the other end of the second capacitor CJ2 is grounded, the other end of the fuse F1 is connected to the input port M1 and the DC12V power input end, the negative electrode of the first TVS tube ZD1 is grounded, the other end of the first resistor RP1 is connected to the pin 11 of the first buck chip U1; one end of the second resistor RH1 is connected to the pin 10 of the first buck chip U1, and the other end of the second resistor RH1 is grounded; pin 12 of the first buck chip U1, one end of the third resistor RE1, one end of the fourth resistor RE2, and One end of the third capacitor CE1 is connected in common, the other end of the third resistor RE1 is connected to the DC12V power input terminal, the other end of the fourth resistor RE2 is grounded, and the other end of the third capacitor CE1 is grounded; one end of the fourth capacitor CG1 is connected to pin 8 of the first buck chip U1, and the other end of the fourth capacitor CG1 is grounded; one end of the fifth capacitor CB1 is connected to pin 7 of the first buck chip U1, and the other end of the fifth capacitor CB1 is connected in common with one end of the first inductor L1 and pin 2 of the first buck chip U1; the other end of the first inductor L1, one end of the sixth capacitor CF1, one end of the sixth resistor RA1, and the seventh capacitor CF1 are connected in common. One end of the capacitor CX1, one end of the eighth capacitor CX2, one end of the ninth capacitor CX3, and the positive electrode of the second TVS tube ZD2 are connected in common, and one end of the common connection is connected to the DC5V output end, and the DC5V output end is connected to the second step-down unit, the other end of the sixth capacitor CF1 is connected to one end of the fifth resistor RF1, the other end of the fifth resistor RF1, the other end of the sixth resistor RA1, one end of the seventh resistor RB1, and pin 9 of the first step-down chip U1 are connected in common, and the other end of the seventh resistor RB1, the other end of the seventh capacitor CX1, the other end of the eighth capacitor CX2, the other end of the ninth capacitor CX3, and the negative electrode of the second TVS tube ZD2 are all grounded.

[0009] Optionally, the second buck unit includes a second buck chip U2, and the product model of the second buck chip U2 is MT3035.

[0010] Optionally, the second step-down unit further includes an eighth resistor RN1, a ninth resistor RN2, a tenth resistor RP2, an eleventh resistor RA3, a twelfth resistor RB3, a tenth capacitor CN1, an eleventh capacitor CS1, a twelfth capacitor C31, a thirteenth capacitor CX4, a fourteenth capacitor CX5, and a second inductor L2; pins 8, 9, and 10 of the second step-down chip U2 and one end of the tenth resistor RP2 are respectively connected to the DC5V output end of the first step-down unit, and the other end of the tenth resistor RP2 is connected to pin 4 of the second step-down chip U2; one end of the eighth resistor RN1, one end of the ninth resistor RN2, one end of the tenth capacitor CN1, and pin 5 of the second step-down chip U2 are connected in common, the other end of the eighth resistor RN1 is connected to the DC5V output end, and the other end of the ninth resistor RN2 is connected to the tenth capacitor CN1. The other end of capacitor CN1 is grounded; pin 11 of the second buck chip U2 is grounded; pin 1, pin 2, and pin 3 of the second buck chip U2 are connected to one end of the second inductor L2; the other end of the second inductor L2, one end of the twelfth capacitor C31, one end of the eleventh resistor RA3, one end of the thirteenth capacitor CX4, and the fourteenth capacitor CX5 are connected in common, and one end of the common connection is connected to the DC3V output end; the other end of the twelfth capacitor C31, the other end of the eleventh resistor RA3, one end of the twelfth resistor RB3, and pin 6 of the second buck chip U2 are connected in common; one end of the eleventh capacitor CS1 is connected to pin 7 of the second buck chip U2, and the other end of the eleventh capacitor CS1, the other end of the twelfth resistor RB3, the other end of the thirteenth capacitor CX4, and the other end of the fourteenth capacitor CX5 are grounded.

[0011] Optionally, a plurality of positioning pin holes for positioning and installation are provided on the substrate.

[0012] Optionally, a plurality of screw holes are provided on the substrate.

[0013] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:

[0014] The one-piece molded power supply module of the magazine-type material box described in the embodiment of the present invention has the advantage of modularity through the one-piece molded substrate. Through the first step-down unit and the second step-down unit, two-stage voltage reduction is achieved, which solves the problems of severe voltage drop over long distances at low voltage and excessive pressure difference at higher voltage, and low voltage reduction efficiency, thereby meeting the demand for stable power supply.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of the integrally formed power module of the magazine-type magazine of the present invention;

[0018] Figure 2 This is a back view of the integrated power module of the magazine-type magazine of the present invention;

[0019] Figure 3 This is a side sectional view of the integrally formed power module of the magazine-type magazine of the present invention;

[0020] Figure 4 is a circuit reference schematic diagram of the first step-down unit;

[0021] Figure 5 This is a circuit reference schematic diagram of the second step-down unit.

[0022] Description of reference numerals:

[0023] 1. Substrate; 2. First step-down unit; 3. Second step-down unit; 4. Positioning pin hole; 5. Screw hole; 6. Plastic sealing layer; 7. Conductive adhesive contact. DETAILED DESCRIPTION

[0024] Exemplary embodiments of the present disclosure will be described below in more detail with reference to the accompanying drawings.

[0025] In order to enable those skilled in the art to better understand the present invention, the following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. The accompanying drawings show preferred embodiments of the present invention. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] Unless otherwise specified, various raw materials, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0027] Figure 1 This is the main view of the integrated power module of the magazine-type magazine of the utility model. Figure 2 This is a back view of the integrated power module of the magazine-type magazine of the present invention. Figure 3 This is a side sectional view of the integrated power module of the magazine-type magazine of the present invention, see Figure 1-3 As shown, the one-piece molded power module of the magazine-type cartridge includes a substrate 1, a first step-down unit 2 and a second step-down unit 3. The first step-down unit 2 and the second step-down unit 3 are both welded on the front of the substrate 1. The first step-down unit 2 and the second step-down unit 3 are electrically connected. The substrate 1 is used to provide physical support and an electrical signal transmission channel. The first step-down unit 2 is used to step down the input DC12V power supply to DC5V and output it to the second step-down unit 3. The second step-down unit 3 is used to step down the input DC5V power supply to DC3V and output it. The back of the substrate 1 is provided with A plurality of conductive adhesive contacts 7 are electrically connected to the second step-down unit 3 for connecting the compression storage hard disk module to output a DC3V power supply thereto; a plastic sealing layer 6 is provided on the front of the substrate 1, and the plastic sealing layer 6 is covered on the outside of the first step-down unit 2 and the second step-down unit 3. The plastic sealing layer 6 is made by plastic sealing treatment based on plastic sealing glue to provide a sealing function, so that the substrate 1 as a whole is integrally formed, and a packaging module connecting plate is formed by heated molding and injection molding, and then the shape, screw holes and positioning pin holes are accurately cut out by laser. The entire module is integrally formed, and the protection and reinforcement are better.

[0028] The base plate 1 is provided with a plurality of positioning pin holes 4 for positioning and installation, which are used to provide a positioning and guiding function when installed on an external structure to correct the upper and lower contact accuracy.

[0029] The substrate 1 is provided with a plurality of screw holes 5, through which the substrate 1 can be fixedly connected to an external structure, for example, to connect to a DC12V power supply. The screw holes 5 correspond to rectangular copper pads with exposed areas around them for conducting springs.

[0030] Figure 4 This is a circuit reference diagram of the first step-down unit 2, combined with Figure 4As shown, the first buck unit 2 includes a first buck chip U1, an input port M1, a fuse F1, a first resistor RP1, a second resistor RH1, a third resistor RE1, a fourth resistor RE2, a fifth resistor RF1, a sixth resistor RA1, a seventh resistor RB1, a first capacitor CJ1, a second capacitor CJ2, a third capacitor CE1, a fourth capacitor CG1, a fifth capacitor CB1, a sixth capacitor CF1, a seventh capacitor CX1, an eighth capacitor CX2, a ninth capacitor CX3, a first TVS tube ZD1, a second TVS tube ZD2, and a first inductor L1; the product model of the first buck chip U1 is SY8366ADC, including 12 groups of pins, wherein the first buck chip U1 has Pin 5, pin 6, one end of the first capacitor CJ1, one end of the second capacitor CJ2, one end of the first resistor RP1, one end of the fuse F1, and the positive electrode of the first TVS tube ZD1 are connected in common. The other end of the first capacitor CJ1 is grounded, the other end of the second capacitor CJ2 is grounded, the other end of the fuse F1 is connected to the input port M1 and the DC12V power input end, the negative electrode of the first TVS tube ZD1 is grounded, the other end of the first resistor RP1 is connected to pin 11 of the first buck chip U1; one end of the second resistor RH1 is connected to pin 10 of the first buck chip U1, and the other end of the second resistor RH1 is grounded; pins 12 of the first buck chip U1, One end of the three resistors RE1, one end of the fourth resistor RE2 and one end of the third capacitor CE1 are connected in common, the other end of the third resistor RE1 is connected to the DC12V power input terminal, the other end of the fourth resistor RE2 is grounded, and the other end of the third capacitor CE1 is grounded; one end of the fourth capacitor CG1 is connected to pin 8 of the first buck chip U1, and the other end of the fourth capacitor CG1 is grounded; one end of the fifth capacitor CB1 is connected to pin 7 of the first buck chip U1, and the other end of the fifth capacitor CB1 is connected in common with one end of the first inductor L1 and pin 2 of the first buck chip U1; the other end of the first inductor L1, one end of the sixth capacitor CF1, and the sixth resistor One end of RA1, one end of the seventh capacitor CX1, one end of the eighth capacitor CX2, one end of the ninth capacitor CX3 and the positive electrode of the second TVS tube ZD2 are connected in common, and one end of the common connection is connected to the DC5V output end, and the DC5V output end is connected to the second step-down unit 3, the other end of the sixth capacitor CF1 is connected to one end of the fifth resistor RF1, the other end of the fifth resistor RF1, the other end of the sixth resistor RA1, one end of the seventh resistor RB1 and pin 9 of the first step-down chip U1 are connected in common, and the other end of the seventh resistor RB1, the other end of the seventh capacitor CX1, the other end of the eighth capacitor CX2, the other end of the ninth capacitor CX3 and the negative electrode of the second TVS tube ZD2 are all grounded.

[0031] Specifically, the first step-down unit 2 inputs the power supply DC12V from the input port M1, connects to the filter capacitor (CJ1\CJ2) and ZD1 (TVS tube, with overvoltage protection) through the fuse F1 (self-recovery fuse, with overcurrent protection), and is connected to the first step-down chip U1 (SY8366 switching power supply chip). U1's EN (enable pin) is divided by a pull-up (RE1) and a pull-down (RE2) voltage, resulting in a voltage of 3V (Ven = (RE2 / (RE1+RE2)) greater than 1.21V, which drives the power chip to operate. RE1 and CE1 form an RC delay circuit. After power-on, the CE1 capacitor is charged, the EN terminal voltage is lower than 1.11V, and the power chip is in standby mode. After the capacitor is fully charged, the EN terminal voltage rises to 3V. The CE1 capacitor is made of X5R material, which has stable high and low temperature characteristics, small size and large capacitance, and a positive and negative tolerance of 20%. Within the 20% capacitance tolerance range, differences in capacitance will cause differences in RC delay time. If multiple power modules are powered on at the same time, the R C delay difference cleverly avoids synchronous operation, reducing the excessive transient surge current caused by synchronous operation. The LX terminal is the output of the first buck chip U1, connected in series with the first inductor L1. Through sampling feedback at the FB terminal, the switching frequency of the first buck chip U1 is controlled to achieve adjustable output voltage. RA1 and RB1 are sampling and comparison resistors using FB (output voltage = (RA1 / RB1+1) x base voltage). The output is filtered by capacitors CX1, CX2, and CX3 to provide a stable DC5V input for the second buck chips U1 and U2 (MT3035, switching power supply chip). ZD2 is a TVS diode that provides overvoltage protection for the DC5V power supply.

[0032] Figure 5 This is a circuit reference diagram of the second step-down unit 3, combined with Figure 5As shown, the second buck unit 3 includes a second buck chip U2, an eighth resistor RN1, a ninth resistor RN2, a tenth resistor RP2, an eleventh resistor RA3, a twelfth resistor RB3, a tenth capacitor CN1, an eleventh capacitor CS1, a twelfth capacitor C31, a thirteenth capacitor CX4, a fourteenth capacitor CX5, and a second inductor L2; the product model of the second buck chip U2 is MT3035, including 10 groups of pins, wherein pins 8, 9, and 10 of the second buck chip U2 and one end of the tenth resistor RP2 are respectively connected to the DC5V output end of the first buck unit 2, and the other end of the tenth resistor RP2 is connected to pin 4 of the second buck chip U2; one end of the eighth resistor RN1, one end of the ninth resistor RN2, one end of the tenth capacitor CN1, and pin 5 of the second buck chip U2 are connected in common, and the other end of the eighth resistor RN1 is connected to DC5 V output end, the other end of the ninth resistor RN2 and the other end of the tenth capacitor CN1 are grounded; pin 11 of the second buck chip U2 is grounded; pin 1, pin 2, and pin 3 of the second buck chip U2 are connected to one end of the second inductor L2; the other end of the second inductor L2, one end of the twelfth capacitor C31, one end of the eleventh resistor RA3, one end of the thirteenth capacitor CX4, and the fourteenth capacitor CX5 are connected in common, and one end of the common connection is connected to the DC3V output end; the other end of the twelfth capacitor C31, the other end of the eleventh resistor RA3, one end of the twelfth resistor RB3, and pin 6 of the second buck chip U2 are connected in common; one end of the eleventh capacitor CS1 is connected to pin 7 of the second buck chip U2, and the other end of the eleventh capacitor CS1, the other end of the twelfth resistor RB3, the other end of the thirteenth capacitor CX4, and the other end of the fourteenth capacitor CX5 are grounded.

[0033] In an embodiment of the present invention, the second buck unit 3 is provided with a DC5V input by the DC5V output end of the first buck unit 2. The EN (enable pin) of the second buck chip U2 is divided by the pull-up (RN1) and the pull-down (RN2), and the voltage is 2.5V (Ven = (RN2 / (RN1+RN2)) greater than 1.21V, and EN drives the power chip to work. RE1 and CN1 form an RC delay circuit. After power-on, the CN1 capacitor is charged, the EN terminal voltage is lower than 1.11V, and the power chip is on standby. After the CN1 capacitor is charged, the EN terminal voltage rises to 2.5V. The CN1 capacitor is made of X5R material, with stable high and low temperature characteristics, small size and large capacitance, and a positive and negative difference of 20%. Within the 20% capacitance error range, the difference in capacitance will cause the RC delay time to differ. Multiple power modules are used at the same time. When powered on, the RC delay difference cleverly avoids synchronous operation, reducing the superimposed transient surge current caused by synchronous operation. At the same time, the delay circuit will cause the second buck chip U2 to delay operation, preventing the first buck chip U1 from being forced to increase its working efficiency and burning out the first buck chip U1. LX is the output of the second buck chip U2, and the second inductor L2 is connected in series. Through FB sampling feedback, the switching frequency of the second buck chip U2 is controlled to achieve the purpose of adjustable output voltage. RA3 and RB3 are sampling comparison resistors using FB (output voltage = (RA3 / RB3+1) x basic voltage). After output, it is filtered by CX4 and CX5 capacitors and outputs DC3.3V power through the DC3V output terminal. DC3.3V can provide a stable DC3.3V power supply for the module product through the conductive glue contact 7.

[0034] The one-piece molded power supply module of the magazine-type material box described in the embodiment of the present invention has the advantage of modularity through the one-piece molded substrate 1, and realizes two-stage voltage reduction through the first step-down unit 2 and the second step-down unit 3, thereby solving the problems of severe voltage drop over long distances at low voltage and excessive voltage difference at higher voltage, and low voltage reduction efficiency, thereby meeting the demand for stable power supply, as well as overvoltage and overcurrent protection, protecting module products, and reducing test damage. At the same time, the large error characteristic of the X5R capacitor is utilized to build a random delay circuit, cleverly avoiding synchronous operation, reducing the superimposed transient surge current caused by synchronous operation, and avoiding the burning of various components of the power supply module due to the increase in working efficiency of the first step-down unit.

[0035] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0036] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various invention aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed approach should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims, the invention aspects lie in less than all of the features of the individual embodiments previously disclosed. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.

[0037] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. An integrated power module for a magazine-type cartridge, characterized in that: The one-piece molded power supply module of the magazine-type material box includes: a substrate, a first step-down unit and a second step-down unit, the first step-down unit and the second step-down unit are both welded on the front of the substrate, and the first step-down unit and the second step-down unit are electrically connected; a plurality of conductive glue contacts are provided on the back of the substrate, and the conductive glue contacts are electrically connected to the second step-down unit; a plastic sealing layer is provided on the front of the substrate, and the plastic sealing layer is covered on the outside of the first step-down unit and the second step-down unit.

2. The one-piece molded power module of the magazine-type cartridge according to claim 1, characterized in that: The first buck unit includes a first buck chip U1 , and the product model of the first buck chip U1 is SY8366ADC.

3. The one-piece molded power module of the magazine-type cartridge according to claim 2, characterized in that: The first buck unit also includes an input port M1, a fuse F1, a first resistor RP1, a second resistor RH1, a third resistor RE1, a fourth resistor RE2, a fifth resistor RF1, a sixth resistor RA1, a seventh resistor RB1, a first capacitor CJ1, a second capacitor CJ2, a third capacitor CE1, a fourth capacitor CG1, a fifth capacitor CB1, a sixth capacitor CF1, a seventh capacitor CX1, an eighth capacitor CX2, a ninth capacitor CX3, a first TVS tube ZD1, a second TVS tube ZD2, and a first inductor L1; pins 5 and 6 of the first buck chip U1, one end of the first capacitor CJ1, one end of the second capacitor CJ2, the ... 1, one end of the fuse F1 and the positive electrode of the first TVS tube ZD1 are connected in common, the other end of the first capacitor CJ1 is grounded, the other end of the second capacitor CJ2 is grounded, the other end of the fuse F1 is connected to the input port M1 and the DC12V power input end, the negative electrode of the first TVS tube ZD1 is grounded, the other end of the first resistor RP1 is connected to the pin 11 of the first buck chip U1; one end of the second resistor RH1 is connected to the pin 10 of the first buck chip U1, and the other end of the second resistor RH1 is grounded; pin 12 of the first buck chip U1, one end of the third resistor RE1, one end of the fourth resistor RE2 and the third One end of the capacitor CE1 is connected in common, the other end of the third resistor RE1 is connected to the DC12V power input terminal, the other end of the fourth resistor RE2 is grounded, and the other end of the third capacitor CE1 is grounded; one end of the fourth capacitor CG1 is connected to pin 8 of the first buck chip U1, and the other end of the fourth capacitor CG1 is grounded; one end of the fifth capacitor CB1 is connected to pin 7 of the first buck chip U1, and the other end of the fifth capacitor CB1 is connected in common with one end of the first inductor L1 and pin 2 of the first buck chip U1; the other end of the first inductor L1, one end of the sixth capacitor CF1, one end of the sixth resistor RA1, and the seventh capacitor One end of CX1, one end of the eighth capacitor CX2, one end of the ninth capacitor CX3, and the positive electrode of the second TVS tube ZD2 are connected in common, and one end of the common connection is connected to the DC5V output end, and the DC5V output end is connected to the second step-down unit, the other end of the sixth capacitor CF1 is connected to one end of the fifth resistor RF1, the other end of the fifth resistor RF1, the other end of the sixth resistor RA1, one end of the seventh resistor RB1, and pin 9 of the first step-down chip U1 are connected in common, the other end of the seventh resistor RB1, the other end of the seventh capacitor CX1, the other end of the eighth capacitor CX2, the other end of the ninth capacitor CX3, and the negative electrode of the second TVS tube ZD2 are all grounded.

4. The one-piece molded power module of the magazine-type cartridge according to claim 3, characterized in that: The second buck unit includes a second buck chip U2 , and the product model of the second buck chip U2 is MT3035.

5. The one-piece molded power module of the magazine-type cartridge according to claim 4, characterized in that: The second step-down unit further includes an eighth resistor RN1, a ninth resistor RN2, a tenth resistor RP2, an eleventh resistor RA3, a twelfth resistor RB3, a tenth capacitor CN1, an eleventh capacitor CS1, a twelfth capacitor C31, a thirteenth capacitor CX4, a fourteenth capacitor CX5, and a second inductor L2; pins 8, 9, and 10 of the second step-down chip U2 and one end of the tenth resistor RP2 are respectively connected to the DC5V output end of the first step-down unit, and the other end of the tenth resistor RP2 is connected to pin 4 of the second step-down chip U2; one end of the eighth resistor RN1, one end of the ninth resistor RN2, one end of the tenth capacitor CN1, and pin 5 of the second step-down chip U2 are connected in common, the other end of the eighth resistor RN1 is connected to the DC5V output end, and the other end of the ninth resistor RN2 is connected to the tenth capacitor CN1 The other end of N1 is grounded; pin 11 of the second buck chip U2 is grounded; pin 1, pin 2, and pin 3 of the second buck chip U2 are connected to one end of the second inductor L2; the other end of the second inductor L2, one end of the twelfth capacitor C31, one end of the eleventh resistor RA3, one end of the thirteenth capacitor CX4, and the fourteenth capacitor CX5 are connected in common, and one end of the common connection is connected to the DC3V output end; the other end of the twelfth capacitor C31, the other end of the eleventh resistor RA3, one end of the twelfth resistor RB3, and pin 6 of the second buck chip U2 are connected in common; one end of the eleventh capacitor CS1 is connected to pin 7 of the second buck chip U2, and the other end of the eleventh capacitor CS1, the other end of the twelfth resistor RB3, the other end of the thirteenth capacitor CX4, and the other end of the fourteenth capacitor CX5 are grounded.

6. The one-piece molded power module of the magazine-type cartridge according to claim 1, characterized in that: The base plate is provided with a plurality of positioning pin holes for positioning and installation.

7. The one-piece molded power module of the magazine-type cartridge according to claim 1, characterized in that: A plurality of screw holes are provided on the base plate.

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