CN216531049U

CN216531049U - Power supply capable of enabling chip to work more stably

Info

Publication number: CN216531049U
Application number: CN202122469245.7U
Authority: CN
Inventors: 朱理贤
Original assignee: Kunshan Shuotong Electronics Co ltd
Current assignee: Kunshan Shuotong Electronics Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-13
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to the technical field of chips and discloses a power supply capable of enabling a chip to work more stably, which comprises a shockproof box, a mounting plate, shockproof foam and a damping device, wherein the shockproof box is of a square cavity structure, the lower surface of the shockproof box is provided with the mounting plate, the mounting plate is fixedly connected with the shockproof box, mounting holes are formed in the mounting plate, the upper surface of the shockproof box is provided with a box cover, four corners of the box cover are fixedly connected with the shockproof box through fixing bolts, the middle of the left side surface of the shockproof box is fixedly connected with an adaptive interface, two groups of wire jacks are formed below the adaptive interface, and a plurality of groups of heat dissipation holes are formed around the adaptive interface. The occurrence of undervoltage protection is reduced, and the power supply is more stable.

Description

Power supply capable of enabling chip to work more stably

Technical Field

The utility model relates to the technical field of chips, in particular to a power supply capable of enabling a chip to work more stably.

Background

Common power supplies are dry batteries (direct current) and household 110V-220V alternating current power supplies, the power supplies are derived from a magnetic electricity generation principle, and the power supplies are generated by renewable energy sources such as water power, wind power, sea tide, dam water pressure difference, solar energy and the like, coal burning, oil residue and the like.

At present general chip is connected with auxiliary winding, detects voltage through single resistance, because pin foot voltage lower limit is low excessively probably to make the power can not normally work or work in an unstable state, can lead to undervoltage protection, and current power lacks antidetonation protection, and the power on some large-scale mobile machines often reduces power life because of excessive vibrations.

Therefore, a power supply capable of enabling the chip to work more stably is designed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a power supply which can enable a chip to work more stably, and solves the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a can make chip work more stable power, includes shockproof case, mounting panel, shockproof foam and damping device, the case that takes precautions against earthquakes is square cavity structure, and the case lower surface that takes precautions against earthquakes is equipped with the mounting panel, mounting panel and the case fixed connection that takes precautions against earthquakes have seted up the mounting hole on the mounting panel, and the case upper surface that takes precautions against earthquakes is equipped with the case lid, and the case lid four corners passes through fixing bolt and the case fixed connection that takes precautions against earthquakes, and fixedly connected with adaptation interface in the middle of the case left surface takes precautions against earthquakes, and two sets of wire jacks have been seted up to adaptation interface below, has seted up a plurality of louvres of group around the adaptation interface.

Furthermore, the inside two sets of shockproof foams that are equipped with of shockproof incasement portion, two sets of shockproof foams respectively fixed connection in the case that takes precautions against earthquakes around on the inner wall, and set up a plurality of groups of bleeder vents on the shockproof foam, the shock attenuation foam can absorb external vibrations to the case that takes precautions against earthquakes, reduces the influence of external vibrations to the incasement portion components and parts that take precautions against earthquakes, and the inside gas of the case that takes precautions against earthquakes of bleeder vent is convenient for and the incasement wall contact that takes precautions against earthquakes, increases air heat conduction area.

Furthermore, the inside damping device that is equipped with of shockproof incasement portion, both sides inlay in the foam that takes precautions against earthquakes inside with shockproof foam in close contact with around the damping device, damping device bottom and the incasement wall bottom fixed connection that takes precautions against earthquakes, damping device is fixed with the case that takes precautions against earthquakes through the foam that takes precautions against earthquakes, through the cushioning effect of the foam that takes precautions against earthquakes, prevents that damping device from directly colliding with the case that takes precautions against earthquakes, reduces the life of the interior electrical components of case that takes precautions against earthquakes.

Further, damping device includes circuit board, shock attenuation piece and damping spring, and the shock attenuation piece side is Z type structure, has seted up two sets of fixed orificess on the upper and lower two horizontal planes of shock attenuation piece respectively, and the shock attenuation piece separates circuit board and shockproof case, and the circuit board hangs in the incasement portion that takes precautions against earthquakes, and the external vibrations to the case that takes precautions against earthquakes are offset partly by the shock attenuation piece when transmitting the shock attenuation piece, reduce the impact to the circuit board.

Furthermore, a group of damping pieces are arranged at four corners of the lower surface of the circuit board respectively, through holes are formed in positions, corresponding to the fixing holes in the horizontal plane of the damping pieces, on the circuit board, the damping pieces are fixedly connected with the circuit board through fixing bolts, and the damping pieces have certain toughness and can be bent and deformed to a certain degree when being impacted, so that the impact force of vibration is counteracted.

Furthermore, a damping spring is arranged between the damping sheet and the circuit board, the damping spring is sleeved on a fixing bolt, the upper end and the lower end of the damping spring are respectively contacted with the circuit board and the damping sheet, and the lower horizontal plane of the damping sheet is fixedly connected with the shockproof box through the fixing bolt.

The utility model has the beneficial effects that: 1. the utility model discloses a, separate circuit board and shockproof case through addding the shock attenuation piece, make external vibrations can only be transmitted to the circuit board by the shock attenuation piece on, and vibrations make shock attenuation piece bending deformation to the impact that the shock attenuation piece caused, and then with the shock absorption, reduce the influence of vibrations to the circuit board, effectively solved current power and lacked the shock resistance protection, the power on some large-scale mobile machines often reduces the problem of power life because of excessive vibrations.

2. The utility model discloses a, through the components and parts setting that changes the circuit board, change the circuit principle of circuit board, improve the protection of product under the output voltage crosses low condition, reduce under-voltage protection's emergence, make the power more stable.

Drawings

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an exploded view of the present invention; FIG. 3 is a schematic view of the shock absorber according to the present invention; fig. 4 is a schematic circuit diagram of the present invention.

In the figure: 1. a shock-proof box; 2. a box cover; 3. mounting a plate; 4. heat dissipation holes; 5. an adaptation interface; 6. a wire insertion hole; 7. mounting holes; 8. fixing the bolt; 9. a damping device; 10. shock-absorbing foam; 11. air holes are formed; 12. a circuit board; 13. a damping sheet; 14. a damping spring; 15. and (7) fixing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a power that can make chip work more stable, including case 1, mounting panel 3 and damping device 9 take precautions against earthquakes, case 1 takes precautions against earthquakes is square cavity structure, and case 1 lower surface that takes precautions against earthquakes is equipped with mounting panel 3, and mounting panel 3 and case 1 fixed connection take precautions against earthquakes have seted up mounting hole 7 on the mounting panel 3, and case 1 upper surface that takes precautions against earthquakes is equipped with case lid 2, and case lid 2 four corners is through fixing bolt 8 and case 1 fixed connection takes precautions against earthquakes, and fixedly connected with adapter 5 in the middle of case 1 left surface takes precautions against earthquakes, and two sets of wire jacks 6 have been seted up to adapter 5 below, has seted up a plurality of louvres 4 of group around the adapter 5.

Referring to fig. 2, two sets of anti-vibration foams 10 are arranged inside the anti-vibration box 1, the two sets of anti-vibration foams 10 are respectively and fixedly connected to the front inner wall and the rear inner wall of the anti-vibration box 1, a plurality of sets of air holes 11 are formed in the anti-vibration foams 10, the anti-vibration foams can absorb the external vibration of the anti-vibration box 1, the influence of the external vibration on the internal components of the anti-vibration box 1 is reduced, the air holes 11 are convenient for the internal gas of the anti-vibration box 1 to contact with the inner wall of the anti-vibration box 1, and the air heat conduction area is increased.

Wherein, the inside damping device 9 that is equipped with of case that takes precautions against earthquakes 1, damping device 9 front and back two sides inlay in the foam 10 that takes precautions against earthquakes inside with the foam 10 in close contact with that takes precautions against earthquakes, damping device 9 bottom and the 1 inner wall bottom fixed connection of case that takes precautions against earthquakes, damping device 9 is fixed with case 1 that takes precautions against earthquakes through foam 10 that takes precautions against earthquakes, through the cushioning effect of foam 10 that takes precautions against earthquakes, prevents that damping device 9 is direct to collide with case 1 that takes precautions against earthquakes, reduces the life of the interior electrical components of case 1 that takes precautions against earthquakes.

Referring to fig. 3, the damping device 9 includes a circuit board 12, a damping sheet 13 and a damping spring 14, a side surface of the damping sheet 13 is a Z-shaped structure, two sets of fixing holes 15 are respectively formed on an upper horizontal plane and a lower horizontal plane of the damping sheet 13, the damping sheet 13 separates the circuit board 12 from the shockproof box 1, the circuit board 12 is suspended inside the shockproof box 1, and external vibration to the shockproof box 1 is offset by the damping sheet 13 when being transmitted to the damping sheet 13, so that impact on the circuit board 12 is reduced.

Wherein, 12 lower surface four corners of circuit board are equipped with a set of shock attenuation piece 13 respectively, have seted up the through-hole on the circuit board 12 with on the shock attenuation piece 13 on the horizontal plane on the position corresponding with fixed orifices 15, shock attenuation piece 13 passes through fixing bolt 8 and circuit board 12 fixed connection, shock attenuation piece 13 has certain toughness, can be bending deformation to a certain extent when receiving the impact, and then offset the impact force of vibrations.

Wherein, be equipped with damping spring 14 between shock attenuation piece 13 and circuit board 12, damping spring 14 overlaps and is located on fixing bolt 8, and damping spring 14 upper and lower both ends contact with circuit board 12 and shock attenuation piece 13 respectively, and the horizontal plane passes through fixing bolt 8 and shockproof case 1 fixed connection under the shock attenuation piece 13.

In summary, in the present invention, when the shockproof box 1 is installed at a proper place through the mounting plate 3 and the mounting holes 7 thereon, since the working environment of the product is a machine with large and frequent vibration, the vibration wave on the machine will be transmitted from the mounting plate 3 to the shockproof box 1, and the parts on the power supply inside the shockproof box 1 will be affected by the vibration of different degrees, the utility model adds the vibration damping device 9 on the circuit board 12, and utilizes the shockproof foam 10 to buffer between the shockproof box 1 and the circuit board 12, so that the shockproof foam 10 can fix the circuit board 12 not moving in the shockproof box 1, and can absorb a part of the vibration transmitted from the shockproof box 1, and the shock absorbing sheet 13 isolates the circuit board 12 from the shockproof box 1, so that the circuit board 12 is suspended inside the shockproof box 1, and the vibration wave on the shockproof box 1 is transmitted to the circuit board 12 through the shock absorbing sheet 13, however, since the damping sheet 13 has high toughness, it will bend and deform when being impacted by the shock wave, and generate a certain resistance to counteract the shock wave, so as to greatly reduce the shock impact on the circuit board 12 and enhance the shock-proof effect.

Meanwhile, components on the circuit board 12 are changed, so that the protection of the product under the condition of too low output voltage is improved, the occurrence of undervoltage protection is reduced, the power supply is more stable, and the working principle of a specific circuit is as follows: as shown in fig. 4, + HV is the primary input terminal of transformer T1, and DET is the primary auxiliary winding terminal. D2 is a rectifier diode of an auxiliary winding of a transformer, C1 is a filter capacitor, C2 is a power supply capacitor of a PWM IC U1, C + and C-are output voltages, and ZD1 is a voltage stabilizing diode.

The working principle of the circuit is as follows: when a product works, because the voltage range between C + and C-of an output end is large, VS of a chip U1 can cause under-voltage protection when the output voltage is low, a direct current component is added on VS through D1, R3, R4 and ZD1 to improve the protection of the product under the condition of too low output voltage, when a main winding of a transformer is coupled with energy to an auxiliary winding and then rectified and output through D1, when the voltage is greater than the voltage of a voltage regulator tube ZD1, ZD1 is conducted in reverse direction to clamp the voltage to ZD1, and at the moment, a direct current component passes through R4 to enable the voltage of a VS pin to be increased, the lower limit of the VS pin is increased, the power supply can normally work under the lower condition, the occurrence of under-voltage protection is reduced, and the power supply works more stably.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a can make chip work more stable power, includes shockproof case (1), mounting panel (3), takes precautions against earthquakes foam (10) and damping device (9), its characterized in that: the utility model discloses a shockproof case, including case (1) that takes precautions against earthquakes, case (1) lower surface takes precautions against earthquakes is square cavity structure, case (1) lower surface takes precautions against earthquakes is equipped with mounting panel (3), mounting panel (3) and case (1) fixed connection takes precautions against earthquakes, mounting hole (7) have been seted up on mounting panel (3), case (1) upper surface takes precautions against earthquakes is equipped with case lid (2), case lid (2) four corners pass through fixing bolt (8) and case (1) fixed connection takes precautions against earthquakes, fixedly connected with adaptation interface (5) in the middle of case (1) left surface takes precautions against earthquakes, two sets of wire jack (6) have been seted up to adaptation interface (5) below, a plurality of louvre of groups (4) have been seted up around adaptation interface (5).

2. The power supply of claim 1, wherein the power supply further comprises: two groups of shockproof foams (10) are arranged in the shockproof box (1), the two groups of shockproof foams (10) are respectively and fixedly connected to the front inner wall and the rear inner wall of the shockproof box (1), and a plurality of groups of air holes (11) are formed in the shockproof foams (10).

3. The power supply of claim 1, wherein the power supply further comprises: the shock-proof box is characterized in that a shock absorption device (9) is arranged inside the shock-proof box (1), the front face and the rear face of the shock absorption device (9) are embedded inside the shock-proof foam (10) to be in close contact with the shock-proof foam (10), and the bottom of the shock absorption device (9) is fixedly connected with the bottom of the inner wall of the shock-proof box (1).

4. A power supply for making chip operation more stable according to claim 3, wherein: the damping device (9) comprises a circuit board (12), a damping sheet (13) and a damping spring (14), the side surface of the damping sheet (13) is of a Z-shaped structure, and two groups of fixing holes (15) are respectively formed in the upper horizontal plane and the lower horizontal plane of the damping sheet (13).

5. The power supply of claim 4, wherein the power supply further comprises: the damping device is characterized in that a group of damping pieces (13) are respectively arranged at four corners of the lower surface of the circuit board (12), through holes are formed in the circuit board (12) at positions corresponding to the fixing holes (15) in the horizontal plane of the damping pieces (13), and the damping pieces (13) are fixedly connected with the circuit board (12) through fixing bolts (8).

6. The power supply of claim 4, wherein the power supply further comprises: the damping device is characterized in that a damping spring (14) is arranged between the damping sheet (13) and the circuit board (12), the damping spring (14) is sleeved on the fixing bolt (8), the upper end and the lower end of the damping spring (14) are respectively in contact with the circuit board (12) and the damping sheet (13), and the lower horizontal surface of the damping sheet (13) is fixedly connected with the shockproof box (1) through the fixing bolt (8).