CN217162606U

CN217162606U - Oxygen injection instrument main body

Info

Publication number: CN217162606U
Application number: CN202122645504.7U
Authority: CN
Inventors: 龚春海; 王赟
Original assignee: Dongguan Yixiang Industrial Design Co ltd
Current assignee: Dongguan Yixiang Industrial Design Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-08-12
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses an oxygen injection instrument main body, which comprises a shell, an air pump, a PCB and a power supply, wherein the air pump, the PCB and the power supply are arranged in the shell; a spray gun interface connected with an air supply pump is arranged on the shell; the shell comprises a shell main body, a top cover and a bottom shell, wherein the top cover and the bottom shell are respectively assembled at the upper end and the lower end of the shell main body; the PCB board fixing device comprises a shell body, a PCB board fixing device and an air pump, wherein the shell body is internally provided with an accommodating cavity which extends up and down and is provided with an opening at the upper end and the lower end, the inner wall surface of the accommodating cavity is convexly provided with a positioning convex ring, the PCB board is fixedly positioned on the lower end surface of the positioning convex ring, and the air pump is arranged and positioned on the upper end surface of the positioning convex ring; so, realize the reliable equipment location to air pump, PCB board, power in the casing, its installation is simple, swift, easily controls air pump, PCB board, power three's the interval of arranging, especially, utilizes the location bulge loop can thicken the wall body structure of shell main part for shell main part structural strength is better.

Description

Oxygen injection instrument main body

Technical Field

The utility model relates to an annotate oxygen appearance field technique, especially indicate an annotate oxygen appearance main part.

Background

The oxygen injector is a common beauty instrument, and compresses air by an air pump, and then separates oxygen in the air by a molecular sieve to obtain high-concentration high-pressure oxygen, thereby providing oxygen therapy for a human body and achieving the beauty effect. The oxygen injection instrument comprises a shell, an air pump, a PCB and a power supply, wherein the air pump, the PCB and the power supply are arranged in the shell; the layout structure of each part of the existing oxygen injection instrument in the shell is not good enough, the assembly and the positioning are troublesome, and in the links of transportation, storage and use by consumers, if the phenomena such as collision occur, the internal structure (such as an air pump, a PCB (printed circuit board), a power supply and the like) is easy to loosen, thereby affecting the product performance.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an oxygen injector main body, which is mainly to install and position the PCB board and the gas pump on the lower end face and the upper end face of the positioning convex ring respectively by the positioning convex ring protruded from the inner wall surface of the accommodating cavity, so as to realize reliable assembly and positioning of the gas pump, the PCB board and the power supply in the housing, and the installation is simple and fast.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oxygen injection instrument main body comprises a shell, an air pump, a PCB and a power supply, wherein the air pump, the PCB and the power supply are arranged in the shell; a spray gun interface connected with an air supply pump is arranged on the shell;

the shell comprises a shell main body, a top cover and a bottom shell, wherein the top cover and the bottom shell are respectively assembled at the upper end and the lower end of the shell main body; the shell comprises a shell main body and a shell cover, wherein the shell main body is internally provided with an accommodating cavity which extends up and down and is provided with an opening at the upper end and the lower end, the inner wall surface of the accommodating cavity is convexly provided with a positioning convex ring, the upper end surface of the positioning convex ring is positioned below the opening at the upper end of the accommodating cavity, and the lower end surface of the positioning convex ring is positioned above the opening at the lower end of the accommodating cavity; the PCB is fixedly positioned on the lower end face of the positioning convex ring, and the air pump is positioned on the upper end face of the positioning convex ring; the power supply is positioned in the bottom shell, and the spray gun interface is arranged on the top cover.

As a preferred scheme, the air pump extends downwards into the area surrounded by the positioning convex ring, and the lower end of the air pump keeps an upper-lower distance with the PCB.

As a preferred scheme, the PCB is provided with an MCU, a power IC and a USB charging interface, the power IC is respectively connected with the USB charging interface and a power supply, and the MCU is respectively connected with the power IC and an air pump.

As a preferable scheme, the MCU is connected to a base of a transistor Q1 through a first resistor R3, an emitter of a transistor Q1 is grounded, a collector of a transistor Q1 is connected to an anode of a diode D2 and an interface 2 of an air pump connector CN3, a cathode of the diode D2 is connected to an interface 1 of an air pump connector CN3, and the air pump connector CN3 is connected to an air pump; the cathode of the diode D2 is also connected to a power connector CN2, and the power connector CN2 is connected to a power supply.

Preferably, a button SW is exposed on the outer side of the shell main body, and the button SW is connected to the MCU.

As a preferred scheme, the power supply IC has a VCC pin, a CE pin, a CHRG pin, a stbby pin, a GND pin, a PROG pin, a TEMP pin, and a BAT pin;

the GND pin is grounded, the PROG pin is grounded through a second resistor R2, and the TEMP pin is grounded; the BAT pin is connected to the power connector CN2, and meanwhile, the BAT pin is connected to the MCU through a diode D1; the VCC pin and the CE pin are connected to the USB charging interface together, and are grounded through a third resistor R1 and a capacitor C3 which are connected in parallel; the CHRG pin and the STDBY pin are connected to the MCU.

As a preferred scheme, the upper end and the lower end of the shell main body are respectively lapped and positioned with the top cover and the bottom shell.

As a preferred scheme, an EVA layer is attached to the bottom of the bottom shell.

Preferably, the PCB keeps an upper and lower distance from the power supply.

As a preferred scheme, the surface of the USB charging interface is provided with a USB waterproof cover which is detachably used for covering the USB charging interface.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely, the technical proposal is that the air pump is installed and positioned on the upper end surface of the positioning convex ring by arranging the accommodating cavity which extends up and down and has an opening at the upper end and the lower end inside the shell main body, the inner wall surface of the accommodating cavity is convexly provided with the positioning convex ring, the PCB is fixedly positioned on the lower end surface of the positioning convex ring, the air pump is installed and positioned on the upper end surface of the positioning convex ring, the power supply is positioned in the bottom shell, and the spray gun interface is arranged on the top cover, thus realizing the reliable assembling and positioning of the air pump, the PCB and the power supply in the shell, the installation is simple and rapid, the arrangement intervals of the air pump, the PCB and the power supply are easy to control, especially, the wall body structure of the shell main body can be thickened by the positioning convex ring, the structural strength of the shell main body is better, when the whole oxygen injection main body is vertically placed, the air pump can be stably and reliably supported, the collision resistance of the oxygen injection instrument main body is also improved, and the loosening phenomenon is not easy to occur in the internal structure.

Secondly, utilize the location bulge loop with the air pump location in the casing main part, can reduce the air pump to the negative effect of PCB board, power. The PCB is provided with the MCU, the power IC and the USB charging interface, particularly the arrangement of the triode Q1, the protection of the MCU is facilitated, and the power IC is protected by combining the specific peripheral circuit structural design of the power IC.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is an exploded view of a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a first embodiment of the present invention;

fig. 4 is an exploded view of a second embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a first embodiment of the present invention;

fig. 6 is an exploded view of a third embodiment of the present invention.

The attached drawings indicate the following:

10. casing 11, air pump

12. PCB 13 and power supply

14. Spray gun interface 15, shell main body

16. Top cover 17 and bottom shell

151. Accommodating cavity 152 and positioning convex ring

18. EVA layer 19, shell.

Detailed Description

Referring to fig. 1 to 6, specific structures of various embodiments of the present invention are shown.

An oxygen injection instrument main body comprises a shell 10, an air pump 11, a PCB 12 and a power supply 13, wherein the air pump 11, the PCB 12 and the power supply 13 are arranged in the shell 10, and the PCB 12 is respectively connected with the power supply 13 and the air pump 11; a spray gun interface 14 connected with an air supply pump 11 is arranged on the shell 10;

the shell 10 comprises a shell main body 15, a top cover 16 and a bottom shell 17 which are respectively assembled at the upper end and the lower end of the shell main body 15; the shell body 15 is internally provided with an accommodating cavity 151 which extends up and down and is provided with an opening at the upper end and the lower end, the inner wall surface of the accommodating cavity 151 is convexly provided with a positioning convex ring 152, the upper end surface of the positioning convex ring 152 is positioned below the opening at the upper end of the accommodating cavity 151, and the lower end surface of the positioning convex ring 152 is positioned above the opening at the lower end of the accommodating cavity 151; the PCB 12 is fixedly positioned on the lower end surface of the positioning convex ring 152, and the air pump 11 is positioned on the upper end surface of the positioning convex ring 152; the power supply 13 is located in the bottom shell 17, and the spray gun interface 14 is arranged on the top cover 16. The upper end and the lower end of the shell main body 15 are respectively in lap joint positioning with the top cover 16 and the bottom shell 17, and the bottom of the bottom shell 17 is provided with an EVA layer 18 in an adhering mode. The PCB board 12 is spaced apart from the power supply 13.

The air pump 11 stretches into downwards in the region enclosed by the positioning convex ring 152, and, the lower extreme of air pump 11 keeps the vertical distance with PCB board 12, be provided with MCU, power IC, the USB interface that charges on PCB board 12, power IC connects in USB interface, power respectively, MCU connects power IC, air pump respectively, the surface that USB charges the interface is provided with the USB waterproof cover, the USB waterproof cover is used for the parcel the USB interface that charges, the USB waterproof cover is detachable covers the USB interface that charges, prevents to annotate oxygen appearance when using, and the USB interface that charges is intake. In this embodiment, the MCU is MCU-SOP8, and the power IC is TC-4056A.

The MCU is connected to the base electrode of a triode Q1 through a first resistor R3, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is respectively connected to the anode of a diode D2 and an interface 2 of an air pump connector CN3, the cathode of the diode D2 is connected to an interface 1 of an air pump connector CN3, and the air pump connector CN3 is connected with an air pump; the cathode of the diode D2 is also connected to a power connector CN2, and the power connector CN2 is connected to a power supply.

A button SW is exposed on the outer side of the shell body and connected to the MCU, and the power supply IC is provided with a VCC pin, a CE pin, a CHRG pin, a STDBY pin, a GND pin, a PROG pin, a TEMP pin and a BAT pin; the GND pin is grounded, the PROG pin is grounded through a second resistor R2, and the TEMP pin is grounded; the BAT pin is connected to the power connector CN2, and meanwhile, the BAT pin is connected to the MCU through a diode D1; the VCC pin and the CE pin are connected to the USB charging interface together, and are grounded through a third resistor R1 and a capacitor C3 which are connected in parallel; the CHRG pin and the STDBY pin are connected to the MCU.

Referring to fig. 4, a specific structure of a second embodiment of the present invention is shown, the specific structure of the second embodiment is basically the same as that of the first embodiment, and the main differences are as follows:

the outside cover of shell main part 15 is equipped with shell 19, shell 19 is for extending from top to bottom and upper and lower extreme open structure, the surface interval of shell 19 is provided with the sand grip.

Referring to fig. 6, a specific structure of a third embodiment of the present invention is shown, the specific structure of the third embodiment is basically the same as the specific structure of the two embodiments, including an air pump 11, a PCB 12, a power supply 13, a housing main body 15, a top cover 16, a bottom shell 17, and an EVA layer 18, and the main difference is that:

an internal thread is arranged inside the lower end of the shell main body 15, the bottom shell 17 is provided with an external thread, the bottom shell 17 rotates in the forward direction, the internal thread and the external thread form threaded connection, the bottom shell 17 is locked with the shell main body 15, and the bottom shell 17 rotates in the reverse direction to separate the bottom shell from the shell main body 15.

The design of the utility model is characterized in that the inner part of the shell main body is provided with an accommodating cavity which extends up and down and is provided with an opening at the upper end and the lower end, a positioning convex ring is convexly arranged on the inner wall surface of the accommodating cavity, the PCB is fixedly positioned on the lower end surface of the positioning convex ring, the air pump is arranged and positioned on the upper end surface of the positioning convex ring, and the power supply is positioned in the bottom shell, and the spray gun interface is arranged on the top cover, so that the reliable assembly and positioning of the air pump, the PCB and the power supply in the shell are realized, the installation is simple and rapid, the arrangement space among the air pump, the PCB and the power supply is easy to control, particularly, the wall body structure of the shell main body can be thickened by utilizing the positioning convex ring, make shell main part structural strength better, when whole notes oxygen main part is vertical placing, can form stable and reliable support to the air pump, also improved the collision resistance ability of annotating oxygen appearance main part, the difficult not hard up phenomenon that appears of inner structure.

Secondly, utilize the protruding ring of location to fix a position the air pump in the casing main part, can reduce the air pump to the PCB board, the negative effect of power. The PCB is provided with the MCU, the power IC and the USB charging interface, particularly the arrangement of the triode Q1, the protection of the MCU is facilitated, and the power IC is protected by combining the specific peripheral circuit structural design of the power IC.

Claims

1. An oxygen injection instrument main body comprises a shell, an air pump, a PCB and a power supply, wherein the air pump, the PCB and the power supply are arranged in the shell; a spray gun interface connected with an air supply pump is arranged on the shell; the method is characterized in that:

2. The oxygen injector body according to claim 1, wherein: the air pump stretches downwards into the area surrounded by the positioning convex ring, and the lower end of the air pump keeps an upper-lower distance with the PCB.

3. The oxygen injector body according to claim 1, wherein: the PCB is provided with an MCU, a power IC and a USB charging interface, the power IC is connected with the USB charging interface and a power supply respectively, and the MCU is connected with the power IC and an air pump respectively.

4. The oxygen injector body according to claim 3, wherein: the MCU is connected to the base electrode of a triode Q1 through a first resistor R3, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is respectively connected to the anode of a diode D2 and an interface 2 of an air pump connector CN3, the cathode of the diode D2 is connected to an interface 1 of an air pump connector CN3, and the air pump connector CN3 is connected with an air pump; the cathode of the diode D2 is also connected to a power connector CN2, and the power connector CN2 is connected to a power supply.

5. The oxygen injector body according to claim 3, wherein: the outside of shell main part exposes and is equipped with button SW, button SW connects in MCU.

6. The oxygen injector body according to claim 4, wherein: the power supply IC is provided with a VCC pin, a CE pin, a CHRG pin, a STDBY pin, a GND pin, a PROG pin, a TEMP pin and a BAT pin;

7. The oxygen injector body according to claim 1, wherein: the upper end and the lower end of the shell main body are respectively in lap joint positioning with the top cover and the bottom shell.

8. The oxygen injector body according to claim 1, wherein: and an EVA layer is adhered to the bottom of the bottom shell.

9. The oxygen injector body according to claim 1, wherein: the PCB keeps an upper-lower distance with the power supply.

10. The oxygen injector body according to claim 3, wherein: the surface of the USB charging interface is provided with a USB waterproof cover which is detachably used for covering the USB charging interface.