CN104454442B - A kind of mini air compressor - Google Patents

Abstract

The invention relates to the technical field of portable air compressors, in particular to a miniature air compressor, which includes an air compressor housing, and an air compressor housing is fixedly connected with a core inflatable component, and the core inflatable component includes a drive motor and a cylinder bracket and the cylinder head, the driving motor is connected to the cylinder bracket, a piston transmission mechanism is connected between the driving motor and the cylinder bracket, the cylinder head is connected to the cylinder bracket, the cylinder head is provided with a main air outlet and a side air outlet, and the main air outlet is connected with The air outlet pipe and the side air outlet are connected with a pressure gauge, which is fixed at the angle space formed by the connection between the drive motor and the cylinder bracket. The maximum degree of compression is obtained, so that the air compressor of the present invention has the advantages of small size, light weight, and easy outdoor portability.

Description

A miniature air compressor

technical field

The invention relates to the technical field of portable air compressors, in particular to a miniature air compressor.

Background technique

A portable air compressor is a device that compresses the gas output by pressurizing the gas. With the improvement of people's living standards, portable air compressors have been more and more used in daily life. Such as inflating car tires, bicycles, balloons, inflating air mattresses, inflatable seats, etc. when camping.

Existing portable air compressors use more air compressors that are portable and have more functions. Moreover, the air compressor adopts a high-power motor, and the bore of the cylinder is relatively large. Its use is mainly aimed at the use occasions with large air output (such as inflating automobile tires). volume also increases accordingly. The use of the air compressor under the condition of the car is not a big problem, but if it is applied to outdoor conditions, such as inflating a motorcycle or other occasions that require inflation efficiency or low air pressure, the air compressor of the prior art has a large volume due to its large size. Big, heavy, not easy to carry and use outdoors, often criticized by users.

Therefore, it is necessary to design a miniature air compressor that is easy to carry and use outdoors for the needs of the market.

Contents of the invention

The purpose of the present invention is to provide a miniature air compressor that is small in size and light in weight, which is convenient for carrying outdoors, so that the overall volume of the air compressor can be compressed to the greatest extent.

In order to achieve the above object, a miniature air compressor of the present invention includes an air compressor housing, and inside the air compressor housing, there is a core inflatable assembly fixedly connected, and the core inflatable assembly includes a drive motor, a cylinder bracket and a cylinder head, the driving motor is connected to the cylinder bracket, a piston transmission mechanism is connected between the driving motor and the cylinder bracket, the cylinder head is connected to the cylinder bracket, and the cylinder head is provided with a main air outlet and a side air outlet , the main air outlet is connected with an air outlet pipe, and the side air outlet is connected with a pressure gauge, and the pressure gauge is fixed at the angled space formed by the connection between the drive motor and the cylinder bracket.

Preferably, the drive motor and the cylinder bracket are vertically connected to each other, the side air outlet is parallel to the output shaft of the drive motor and faces the rear end of the output shaft of the drive motor, and the pressure gauge is plugged into the side air outlet.

Preferably, the diameter D of the pressure gauge is less than or equal to the shortest distance E between the top end of the cylinder head and the outer wall of the driving motor.

As a preference, the air compressor housing as a whole is rectangular, the mutually perpendicular drive motors and cylinder brackets are distributed on one side of the air compressor housing at right angles, and the transmission gear of the piston transmission mechanism is located in the movement The space formed by the inflatable component at right angles to the side.

Preferably, the housing of the air compressor is provided with a power input plug, and a power switch is provided between the power input plug and the driving motor, and the power switch is provided on the housing of the air compressor.

Preferably, the housing of the air compressor includes an upper cover and a lower cover connected to each other, an accommodating cavity is provided between the upper cover and the lower cover, the core inflatable assembly is fixedly arranged in the accommodating cavity, and the The upper cover is provided with a pressure gauge fixing ring, the pressure gauge is fixed to the pressure gauge fixing ring, and the power switch is fixed to the upper cover.

Preferably, the power switch is located in a space other than the air movement assembly and the pressure gauge.

Preferably, the power switch is located below the drive motor or the power switch is located at one side of the pressure gauge.

Preferably, when the power switch is located below the drive motor, the horizontal distance C between the central axes of the power switch and the pressure gauge is 50-70mm.

Preferably, the length B of the air compressor housing is 100-150 mm; the width A of the air compressor housing is 100-150 mm.

Beneficial effects of the present invention: a miniature air compressor, the inside of the air compressor housing is fixedly connected with a core inflatable assembly, and the side air outlet of the cylinder head is connected to a pressure gauge, so that the pressure gauge is fixed on the drive motor and connected to the cylinder bracket In the formed angle space, the placement of the pressure gauge does not occupy the extra space of the air compressor shell, so that the overall volume of the air compressor can be compressed to the greatest extent; in addition, due to the relatively small size of the power switch, there are many places to place it. The choice of the power switch can be placed in the space outside the air compressor components and pressure gauges, making full use of the space of the air compressor shell, the structure of the core inflatable components, pressure gauges and power switches is more compact, The air compressor of the present invention has the advantages of small volume, light weight and convenient outdoor carrying.

Description of drawings

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic structural view of Embodiment 1 of the present invention with the upper cover hidden.

Fig. 3 is a schematic diagram of the connection between the movement inflation assembly and the pressure gauge according to Embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of the second embodiment of the present invention with the upper cover hidden.

Reference signs include:

1—Motion Inflatable Assembly 11—Drive Motor 12—Cylinder Bracket

13—Cylinder head 131—Main air outlet 132—Side air outlet

133—Outlet pipe 2—Piston transmission mechanism 3—Pressure gauge

4—Side right angle 5—Power input plug 6—Power switch

7—upper cover 71—pressure gauge fixing ring 8—lower cover

81—cooling fan 82—transmission gear.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one.

As shown in Fig. 1 to Fig. 3, a kind of miniature air compressor of the present invention comprises an air compressor casing, and a core inflation assembly 1 is fixedly connected inside the air compressor casing, and the core inflation assembly 1 Comprising a driving motor 11, a cylinder bracket 12 and a cylinder head 13, the driving motor 11 is connected to the cylinder bracket 12, a piston transmission mechanism 2 is connected between the driving motor 11 and the cylinder bracket 12, and the cylinder head 13 is connected to the cylinder Support 12, the cylinder head 13 is provided with a main air outlet 131 and a side air outlet 132, the main air outlet 131 is connected with an air outlet pipe 133, the side air outlet 132 is connected with a pressure gauge 3, and the pressure gauge 3 is fixed At the angled space formed by connecting the drive motor 11 and the cylinder bracket 12 .

The inside of the air compressor shell is fixedly connected with the core inflatable assembly 1, and the side air outlet 132 of the cylinder head 13 is connected to the pressure gauge 3, so that the pressure gauge 3 is fixed at the angle space formed by the connection between the drive motor 11 and the cylinder bracket 12. , the placement of the pressure gauge 3 does not occupy the extra space of the air compressor shell, so that the overall volume of the air compressor can be compressed to the greatest extent; in addition, because the power switch 6 is relatively small in size, there are many options for its placement. The 6 positions of the switch can be placed in the space other than the air compressor component 1 and the pressure gauge 3, making full use of the space of the air compressor shell, and the structural arrangement of the core inflation component 1, the pressure gauge 3 and the power switch 6 is more convenient. Compactness makes the air compressor of the present invention have the advantages of small size, light weight and easy outdoor carrying.

The driving motor 11 and the cylinder support 12 of this embodiment are connected vertically to each other, the side air outlet 132 is parallel to the output shaft of the driving motor 11 and faces the rear end of the output shaft of the driving motor 11, and the pressure gauge 3 is plugged into the side outlet. Air port 132. Preferably, the drive motor 11 and the cylinder bracket 12 are perpendicular to each other, and the drive motor 11 can drive the piston in the piston transmission mechanism 2 to move in the cylinder of the cylinder bracket 12 to realize the function of fast inflation. The drive motor 11 and the cylinder bracket 12 perpendicular to each other form a right-angle space for accommodating the pressure gauge 3. When the inflation function of the movement inflatable component 1 is satisfied, the space for accommodating the pressure gauge 3 is constructed, and the internal space of the air compressor is skillfully arranged. Maximum compression volume.

The diameter D of the pressure gauge 3 in this embodiment is less than or equal to the shortest distance E between the top of the cylinder head 13 and the outer wall of the driving motor 11 . The shortest distance E between the top of the cylinder head 13 and the outer wall of the drive motor 11 is determined by the volume of the core inflatable assembly 1, which involves the design of parameters such as motor power, inflation speed, and starting current. Since the diameter D of the pressure gauge 3 is less than or equal to the shortest distance E, it is ensured that the space occupied by the pressure gauge 3 does not exceed the angle space formed by the drive motor 11 and the cylinder bracket 12, so that the volume of the air compressor is minimized.

The overall shape of the air compressor housing in this embodiment is rectangular, and the joints formed by the mutually perpendicular drive motors 11 and cylinder brackets 12 are at right angles, and the right angle joints are distributed on one side of the air compressor housing at right angles. 4. The transmission gear 82 of the piston transmission mechanism 2 is located in the space formed by the air movement assembly 1 and the side right angle 4 . Since the driving motor 11 and the cylinder bracket 12 are vertically designed, the rectangular air compressor housing can effectively match the right-angle layout of the driving motor 11 and the cylinder bracket 12, and maximize the connection between the driving motor 11, the cylinder bracket 12 and the air compressor. The two sides of the housing are close to each other to fully occupy the volume occupied by the compressor core inflatable assembly 1, and the transmission gear 82 of the piston transmission mechanism 2 is just located in the space at the right angle 4 above the side, effectively utilizing the space and compressing the air. Press volume.

Preferably, the housing of the air compressor is provided with a power input plug 5, and a power switch 6 is provided between the power input plug 5 and the driving motor 11, and the power switch 6 is provided on the surface of the housing of the air compressor. The power input plug 5 can allow the air compressor to be connected to an external power supply, and the external power supply can be a vehicle power supply or a mobile power supply, which is convenient for different usage occasions. In addition, this design also eliminates the need to open up a separate space inside the air compressor housing to place the battery, maximizing space savings.

As a preference, the air compressor housing of this embodiment includes an upper cover 7 and a lower cover 8 connected to each other, an accommodating cavity is provided between the upper cover 7 and the lower cover 8, and the core inflation assembly 1 is fixedly arranged In the accommodating cavity, the upper cover 7 is provided with a pressure gauge fixing ring 71 , the pressure gauge 3 is fixed on the pressure gauge fixing ring 71 , and the power switch 6 is fixed on the upper cover 7 . The pressure gauge fixing ring 71 provided on the upper cover 7 can effectively fix the pressure gauge 3 to avoid air leakage caused by the pressure gauge 3 detaching from the movement inflatable assembly 1 . More ingeniously, the pressure gauge fixing ring 71 meets the requirements for fixing the pressure gauge 3 while not occupying the extra space of the air compressor casing, so that the miniaturization of the space is guaranteed.

The power switch 6 of the present embodiment is located in a space outside the movement inflatable assembly 1 and the pressure gauge 3 . Due to the small size of the power switch 6, there are many options for its placement. The 6 positions of the power switch can be placed in the space other than the inflatable component 1 and the pressure gauge 3 of the core, so as to make full use of the space of the air compressor shell , as preferably, the power switch 6 of the present embodiment is positioned at the bottom of the drive motor 11, in order to avoid the transmission gear 82 of the piston transmission mechanism 2 interfering with the bottom edge of the upper cover 7, so the bottom edge of the drive motor 11 and the upper cover 7 is reserved There is a certain gap, and the power switch 6 is placed by using this gap, which can make full use of the gap and save the internal space of the air compressor.

Specifically, when the power switch 6 is located below the driving motor 11 , the horizontal distance C between the central axes of the power switch 6 and the pressure gauge 3 is 50-70 mm. Under the premise of ensuring the inflation effect, the power switch 6 can be placed within the range of the horizontal distance C between the power switch 6 and the central axis of the pressure gauge 3 of 50-70 mm. This distance range is the preferred size value for the power switch 6.

On the premise of ensuring the inflation effect, in order to minimize the external dimension value of the air compressor shell, the length B of the air compressor shell is 100~150mm, and the width A of the air compressor shell is 100~150mm as the optimal Dimension design value.

The use of any of the above-mentioned dimensional design values is within the limit range of the present invention.

Embodiment two.

As shown in FIG. 4 , the difference between this embodiment and Embodiment 1 is that the power switch 6 is located on one side of the pressure gauge 3 . Due to the small size of the power switch 6, there are many options for its placement. The 6 positions of the power switch can be placed in the space other than the inflatable component 1 and the pressure gauge 3 of the core, so as to make full use of the space of the air compressor shell . Because the rear end of the drive motor 11 needs to be provided with a cooling fan 81, the cooling fan 81 occupies a certain space in the lateral position, the power switch 6 of this implementation is located on one side of the pressure gauge 3, just in the space above the cooling fan 81, which can fully Utilize the internal space of the air compressor casing to minimize the volume of the air compressor.

The rest of this embodiment is the same as the first embodiment, and will not be repeated here.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (4)

1. a kind of mini air compressor, including air compressor machine housing, the air compressor machine enclosure interior is fixedly connected with movement inflatable component, The movement inflatable component includes motor, air cylinder support and cylinder head, and the motor is connected to air cylinder support, described Piston drive is connected between motor and air cylinder support, the cylinder head is connected to air cylinder support, the cylinder head Main gas outlet and side gas outlet is provided with, the main gas outlet is connected with escape pipe, and the side gas outlet is connected with pressure gauge, institute State pressure gauge and be fixed on motor and be connected with air cylinder support at the angle space to be formed；The motor and air cylinder support phase Mutual vertical connection, output shaft of the side gas outlet parallel to motor and the output shaft rear end towards motor, it is described Pressure gauge is plugged in side gas outlet；The entirety of the air compressor machine housing is rectangular, the orthogonal motor and cylinder Support is correspondingly distributed in a side right angle of air compressor machine housing, and the travelling gear of the piston drive is located at movement inflation group At the space that part is formed with the side right angle；The air compressor machine housing is provided with power input plug, and the power input is inserted Power switch is provided between head and motor, the power switch is arranged at air compressor machine housing；It is characterized in that：The sky Press housing includes the upper lid and lower cover being connected with each other, and accommodating cavity, the movement inflation are provided between the upper lid and lower cover Component is fixedly installed on accommodating cavity, and the upper lid is provided with pressure gauge retainer ring, and the pressure gauge is fixed on pressure gauge retainer ring, The power switch is fixed on the upper lid；

The length B of the air compressor machine housing is 100~150mm；The width A of the air compressor machine housing is 100~150mm；

The diameter D of the pressure gauge is less than the cylinder head top and the beeline E of motor outer wall, pressure gauge retainer ring The outside of pressure gauge is set in, the inner surface of pressure gauge retainer ring contradicts pressure gauge, and pressure gauge retainer ring is used for isolated pressure table And motor.

A kind of 2. mini air compressor according to claim 1, it is characterised in that：The power switch is located at movement inflation group At space outside part, pressure gauge.

A kind of 3. mini air compressor according to claim 2, it is characterised in that：The power switch is located at motor Lower section or the power switch are located at the side of pressure gauge.

A kind of 4. mini air compressor according to claim 3, it is characterised in that：When power switch is located under motor Horizontal range C between both Fang Shi, the power switch and pressure gauge central axis is 50~70mm.