air compressor unit

Abstract

This invention provides an air compressor device in which a motor is engaged with a plurality of pins on a main frame via a plurality of recessed holes, and is snapped together with the main frame via a positioning part extending from the motor. This allows the motor to be assembled without screws and to be stably fixed to the main frame. The internal components of the air compressor are housed in a housing. The tail fin of the positioning part is constrained between the motor and the main frame by a clamping part pre-set on the inner sidewall of the upper and lower housings of the housing, so that the tail fin will not loosen during the operation of the air compressor or during external impacts such as accidental landing.

Description

Technical Field

[0001] This invention relates to an air compressor device, and more particularly to a practical technology that allows the motor to be assembled without the use of screws and stably fixed to the main frame, and the entire internal assembly of the air compressor can be housed within a housing. Background Technology

[0002] A conventional air compressor includes a main frame, a cylinder attached to the main frame, a motor assembled on the main frame, and a piston that can be driven by the motor to reciprocate within the cylinder. The reciprocating motion of the piston within the cylinder by the motor completes the intake, compression, and discharge of pressurized gas. The entire internal assembly of the air compressor can be housed in a box.

[0003] Generally, the motors of conventional air compressors are mostly secured to the main frame with screws. However, during long-term operation, these screws are prone to coming loose or falling off, reducing their lifespan. The screws must pass through the main frame and be secured to the screw holes in the motor housing. If space constraints prevent the screw-fastening tools from passing through the main frame and its surrounding components, the motor cannot be securely fastened to the main frame using screws. Recognizing the shortcomings in conventional air compressor designs, the inventors developed this invention after numerous efforts. Summary of the Invention

[0004] The purpose of this invention is to provide an air compressor device that allows the motor to be assembled without screws and stably fixed to the main frame, thereby improving its service life.

[0005] To achieve the above objectives, the present invention provides an air compressor device, comprising an air compressor internal assembly and a housing for housing the air compressor internal assembly. The air compressor internal assembly includes a main frame having a plurality of positioning holes, including a first positioning hole and a second positioning hole; a cylinder coupled to the main frame, with an air storage seat connected to the cylinder; a motor assembled on the main frame, with a gear at the motor core end extending through the first positioning hole of the main frame and housing the inner bearing seat of the motor within the first positioning hole; and a transmission mechanism assembled in the second positioning hole, which can be driven by the motor to drive a piston to perform reciprocating compression action within the cylinder to generate compressed air. The motor extends at least one positioning part, which is snapped together with the main frame, allowing the motor to be assembled without screws and stably fixed to the main frame.

[0006] Furthermore, the cylindrical circumferential surface of the motor housing is provided with heat dissipation vents, which not only allow airflow to occur inside and outside the motor housing, but also achieve heat dissipation. The motor is fitted with a metal magnetic ring, which has the function of conducting magnetism, thus improving the efficiency of the motor when it is performing work.

[0007] Furthermore, the motor head end face with the gear at the core end has a plurality of recessed holes around the outer perimeter of the inner bearing seat, and a plurality of pins are also protruding around the outer perimeter of the first positioning hole at the rear of the main frame corresponding to the aforementioned recessed holes. When the motor is to be positioned on the main frame, the plurality of recessed holes on the motor head end face are engaged with the plurality of pins on the main frame to position the motor and strengthen the resistance to the rotational force when the motor is running.

[0008] Furthermore, after the motor and the main frame are joined together, the joint surface still retains a plurality of flow holes, that is, the space in which the pin on the main frame is inserted into the recessed hole on the end face of the motor still retains flow holes.

[0009] Furthermore, the motor housing extends to provide two symmetrical positioning portions, and the main frame is provided with two through holes that extend vertically relative to the positioning portions. A groove is provided near each of the two through holes. The two positioning portions extend through the two through holes on the main frame and are bent at their ends by a pressure tool to form two symmetrical positioning wings. These positioning wings can be pressed and fixed to the surface of the main frame, so that the motor can be assembled without the use of screws and can be stably fixed on the main frame.

[0010] Furthermore, a disassembly element can be used to separate the motor from the main frame. This involves inserting the disassembly element into the groove of the main frame and applying a reverse force to the positioning wing of the positioning part that is fastened to the main frame to deform it and release the fastening state. Then, the motor can be moved to change the relative position between the motor and the main frame, thus easily and quickly separating the motor from the main frame.

[0011] Furthermore, two symmetrical positioning portions are extended from the magnetic coil fitted on the motor housing. Each positioning portion has a narrowed neck section at its end, and a tail fin with the same width as the original positioning portion extends from the end of the neck section. The left and right sides of the main frame are also provided with two positioning grooves corresponding to the tail fins of the two positioning portions. The positioning grooves include a left groove and a right groove. The tail fin is located in the positioning groove of the main frame. The tail fin is then pressed together by a pressure tool so that it is recessed into the left and right grooves of the aforementioned positioning grooves, thus bending it to form a left tail fin and a right tail fin. The left tail fin and the right tail fin can be pressed together and fixed in the positioning groove of the aforementioned main frame, so that the motor can be assembled without the use of screws and can be stably fixed on the main frame.

[0012] Furthermore, a disassembly element is used to separate the motor from the main frame. This disassembly element is inserted into the positioning slot of the main frame, and a reverse force is applied to the left and right tail wings of the positioning part that are fastened to the main frame to release the fastening state. At the same time, the motor is moved to change the relative position of the motor and the main frame, so that the motor can be easily and quickly separated from the main frame.

[0013] Furthermore, the air compressor internal assembly is placed into the housing. The housing has a clamping part on the inner side wall of the upper and lower housings. The clamping part is a protrusion on the inner side wall of the housing. The wall surface of the protrusion restricts the tail wing of the aforementioned positioning part between the aforementioned motor and the main frame, so that the tail wing will not loosen during the operation of the air compressor or when it is accidentally dropped or hit by external force.

[0014] After adopting the above technical solution, the motor is snapped together with the main frame by at least one positioning part extending from the motor, so that the motor can be assembled without the use of screws and can be stably fixed on the main frame. Attached Figure Description

[0015] Figure 1 This is an exploded view of some components of the present invention;

[0016] Figure 2 This is an exploded view of some components from another angle of the present invention;

[0017] Figure 3 This is a perspective view of the present invention;

[0018] Figure 4 This is a cross-sectional plan view of the present invention;

[0019] Figure 5 This is a partially enlarged schematic diagram of the present invention and the use of a disassembly element;

[0020] Figure 6 This is a cross-sectional plan view of the motor of the present invention, in which a plurality of concave holes are engaged with a plurality of pins on the main frame and the two are engaged in opposite directions, while still retaining flow holes.

[0021] Figure 7 This is an exploded view of some components of another main frame and motor of the present invention;

[0022] Figure 8 yes Figure 7 Assembly diagram;

[0023] Figure 9 yes Figure 7 sectional plan view;

[0024] Figure 10 yes Figure 8 sectional plan view;

[0025] Figure 11yes Figure 10 A partial enlargement and a schematic diagram using a disassembled component;

[0026] Figure 12 yes Figure 8 A schematic diagram showing an air compressor built into the housing;

[0027] Figure 13 yes Figure 12 The sectional plan view.

[0028] Symbol explanation:

[0029] 10... Air compressor

[0030] 1...Main frame

[0031] 11...First positioning hole

[0032] 12...Second positioning hole

[0033] 121... Bearing

[0034] 13...perforation

[0035] 14...groove

[0036] 15... Positioning slot

[0037] 151...Left groove

[0038] 152...Right trench

[0039] 2... cylinder

[0040] 3...Gas storage base

[0041] 30...manifold

[0042] 31... Hose

[0043] 32... Pressure gauge

[0044] 4...motor

[0045] 41...Inner bearing housing

[0046] 42...Head end face

[0047] 420... concave hole

[0048] 43... Heat dissipation vent

[0049] 44...Magnetic coil

[0050] 45... Positioning section

[0051] 451... Positioning flank

[0052] 46... Positioning section

[0053] 461...Cervical segment

[0054] 47...tail wing

[0055] 471...Left tail wing

[0056] 472...right tail wing

[0057] 5... Piston body

[0058] 6... Transmission mechanism

[0059] 61...small gear

[0060] 62... Large Gear

[0061] 7...Matching surface

[0062] 70...flow hole

[0063] 8...box

[0064] 81...Pressure Section

[0065] 82...bumps

[0066] 9...Disassemble the components. Detailed Implementation

[0067] Please refer to the following first. Figure 12 The internal organs assembly of the air compressor 10 in this invention can be placed inside the hollow part of a housing 8. Please also refer to... Figures 1 to 3 As shown, the internal assembly of the air compressor 10 of the present invention includes a main frame 1, a cylinder 2 coupled to the main frame 1, a motor 4 assembled on the main frame 1, and a piston 5 that can be driven by the motor 4 to reciprocate within the cylinder 2.

[0068] The main frame 1 has a plurality of positioning holes, including a first positioning hole 11 and a second positioning hole 12. A small gear 61 located at the core end of the motor 4 extends through the first positioning hole 11 and houses the inner bearing seat 41 of the motor 4. A bearing 121 is installed in the second positioning hole 12. The cylindrical circumferential surface of the aforementioned motor 4 housing has two symmetrical, fully penetrating heat dissipation vents 43, which not only allow airflow between the inside and outside of the motor 4 housing but also achieve heat dissipation. The motor 4 is fitted with a metal magnetic ring 44, which, due to its magnetic conduction function, improves the efficiency of the motor 4 when it performs work.

[0069] The cylinder 2 can be integrally formed and attached to the main frame 1. A gas storage seat 3 is connected to the cylinder 2. The gas storage seat 3 is provided with at least one manifold 30, which can be equipped with a hose 31 for outputting gas and a pressure gauge 32.

[0070] A transmission mechanism 6 includes a large gear 62 with a weight block, which can mesh with the aforementioned small gear 61. The large gear 62 is connected to the aforementioned bearing 121 via a shaft (not shown in the conventional technical drawings). The transmission mechanism 6 can drive the piston body 5 to perform a reciprocating compression action in the aforementioned cylinder 2 to generate compressed air.

[0071] Cooperate Figures 1 to 3 As shown, the present invention is characterized in that: the motor 4 head end face 42, which is provided with a small gear 61 at one end, has a plurality of recessed holes 420 around the outer periphery of the inner bearing seat 41, and a plurality of pins 110 are also provided around the outer periphery of the first positioning hole 11 behind the main frame 1, corresponding to the aforementioned recessed holes 420. When the motor 4 is to be positioned on the main frame 1, it can engage the plurality of recessed holes 420 of the motor 4 head end face 42 with the plurality of pins 110 on the main frame 1, which can serve as the positioning of the motor 4 and strengthen the resistance to the rotational force when the motor 4 is running. After the motor 4 and the main frame 1 are engaged with each other, the engagement surface 7 still retains a plurality of flow holes 70 (see also the reference). Figure 6 The space where the pin 110 on the main frame 1 is inserted into the recess 420 of the end face 42 of the motor 4 still has a flow hole 70. At the same time, the inner bearing seat 41 of the end face 42 of the motor 4 is housed in the first positioning hole 11 on the main frame 1. The main frame 1 and the motor 4 are snapped together by at least one positioning part 45. That is, one end of the positioning part 45 extends from the motor 4, and the other end of the positioning part 45 is snapped onto the main frame 1, so that the motor 4 can be assembled without the use of screws and can be stably fixed on the main frame 1.

[0072] One embodiment of the present invention is as follows: Figures 1 to 4 As shown, the aforementioned motor 4 housing has two symmetrical positioning portions 45 extending from the head end face 42, and the main frame 1 has two through holes 13 that pass through the positioning portions 45. A groove 14 is provided near each of the two through holes 13. The aforementioned two positioning portions 45 extend through the two through holes 13 on the main frame 1 and two symmetrical positioning wings 451 are bent at the ends of the two positioning portions 45 by a pressure tool (not shown in the figure). The positioning wings 451 can be pressed and fixed to the surface of the aforementioned main frame 1, so that the motor 4 can be assembled without the use of screws and can be stably fixed on the main frame 1.

[0073] Please see Figure 5The present invention utilizes a disassembly element 9 to separate the coupled motor 4 from the main frame 1. Specifically, the disassembly element 9 extends into the groove 14 of the main frame 1 and applies a reverse force to the positioning wing 451 of the positioning part 45 that is fastened to the main frame 1, deforming it to release the fastening. Then, the motor 4 is moved to change its relative position to the main frame 1, thus easily and quickly separating the motor 4 from the main frame 1. The disassembly element 9 can be a common tool, such as a screwdriver.

[0074] Please see Figures 7 to 10 In another embodiment of the present invention, two symmetrical positioning portions 46 extend from the magnetic coil 44 fitted onto the motor 4 housing. Each positioning portion 46 has a narrowed neck section 461 at its end. A tail fin 47 of the same original width as the aforementioned positioning portion 46 extends from the end of the neck section 461. Two positioning grooves 15 are also provided on the left and right sides of the main frame 1 relative to the tail fin 47 of the two positioning portions 46. Each positioning groove 15 includes a left groove 151 and a right groove. 152. The aforementioned tail wing 47 is located in the positioning groove 15 of the main frame 1. A pressure tool (not shown in the figure) is used to press the tail wing 47 into the left groove 151 and right groove 152 of the positioning groove 15, bending it to form a left tail wing 471 and a right tail wing 472. The left tail wing 471 and right tail wing 472 can be pressed and fixed in the positioning groove 15 of the main frame 1, allowing the motor 4 to be assembled without screws and stably fixed to the main frame 1. Please refer to... Figure 11 In this embodiment, a disassembly element 9 can still be used to separate the combined motor 4 from the main frame 1. That is, the disassembly element 9 is inserted into the positioning groove 15 of the main frame 1, and a reverse force is applied to the left tail wing 471 and right tail wing 472 of the positioning part 46 that is fastened to the main frame 1 to release the fastening state. At the same time, the motor 4 is moved to change the relative position of the motor 4 and the main frame 1, so that the motor 4 can be easily and quickly separated from the main frame 1.

[0075] Please see Figure 12 and Figure 13 A schematic diagram showing the internal assembly of the air compressor 10 placed inside a housing 8. The housing 8 has a pre-set clamping part 81 on the inner side wall of the upper and lower housings. The clamping part 81 is a protrusion 82 on the inner side wall of the housing 8. The wall surface of the protrusion 82 can restrict the tail wing 47 of the positioning part 46 between the aforementioned motor 4 and the main frame 1, so that the tail wing 47 will not loosen during the operation of the air compressor 10 or when it is accidentally dropped or hit by external forces.

[0076] In summary, the present invention provides an air compressor 10 device. The motor 4 is engaged with a plurality of pins 110 on the main frame 1 by a plurality of recesses 420. These pins serve as positioning for the motor 4, enhancing the resistance to the rotational force of the motor 4 during operation. Furthermore, the motor 4 extends from at least one positioning part 45 and is snapped together with the main frame 1, allowing the motor 4 to be assembled without screws and stably fixed to the main frame 1. The internal assembly of the air compressor 10 is placed inside a housing 8. The clamping parts 81 pre-set on the inner sidewalls of the upper and lower housings of the housing 8 restrict the tail wing 47 of the positioning part 46 between the aforementioned motor 4 and the main frame 1, preventing the tail wing 47 from loosening during the operation of the air compressor 10 or during external impacts such as accidental landing.

Claims

1. An air compressor device, comprising an air compressor internal assembly and a housing for housing the air compressor internal assembly, the air compressor internal assembly comprising a main frame having a plurality of positioning holes, the plurality of positioning holes including a first positioning hole and a second positioning hole; a cylinder coupled to the main frame, with an air reservoir connected to the cylinder; a motor assembled to the main frame, a gear disposed at the motor core end extending through the first positioning hole of the main frame and housing the inner bearing seat of the motor within the first positioning hole; and a transmission mechanism assembled to the second positioning hole. The motor has a positioning hole, which drives a piston to reciprocate within a cylinder to generate compressed air. The motor extends with two positioning parts, which are snap-fitted to the main frame, allowing the motor to be assembled without screws and stably fixed to the main frame. The cylindrical circumferential surface of the motor housing has heat dissipation vents, allowing airflow both inside and outside the motor housing for heat dissipation. The motor is fitted with a metal magnetic ring, which, due to its magnetic properties, improves the motor's efficiency during operation. Its key features are: Two symmetrical positioning portions are provided extending from the magnetic coil fitted on the motor housing. Each positioning portion has a narrowed neck section at its end, and a tail fin with the same width as the original positioning portion extends from the end of the neck section. The left and right sides of the main frame are also provided with two positioning grooves relative to the tail fin of the two positioning portions. The positioning grooves include a left groove and a right groove. The tail fin is located in the positioning groove of the main frame. The tail fin is pressed into the left and right grooves of the positioning groove by a pressure tool, and bent to form a left tail fin and a right tail fin. The left tail fin and the right tail fin can be pressed and fixed in the positioning groove of the main frame, so that the motor can be assembled without screws and can be stably fixed on the main frame.

2. The air compressor device according to claim 1, characterized in that: The motor head end face with a gear at the core end has a plurality of recessed holes around the outer perimeter of the inner bearing seat, and a plurality of pins are also protruding around the outer perimeter of the first positioning hole at the rear of the main frame corresponding to the aforementioned recessed holes. When the motor is to be positioned on the main frame, the plurality of recessed holes on the motor head end face are engaged with the plurality of pins on the main frame to position the motor and strengthen the resistance to the rotational force when the motor is running.

3. The air compressor device according to claim 2, characterized in that: After the motor and the main frame are joined together, a plurality of flow holes remain on the joint surface, and flow holes remain in the space where the pin on the main frame is inserted into the recessed hole on the end face of the motor.

4. The air compressor device according to claim 1, characterized in that: The motor is separated from the main frame by using a disassembly element. The disassembly element extends into the positioning groove of the main frame and applies a reverse force to the left and right tail wings of the two positioning parts that are fastened to the main frame to release the fastening state. At the same time, the motor is moved to change the relative position of the motor and the main frame, so that the motor can be easily and quickly separated from the main frame.

5. The air compressor device according to claim 1, characterized in that: The air compressor internal assembly is placed into the box. The box has a clamping part on the inner side wall of the upper and lower shells. The clamping part is a protrusion on the inner side wall of the box. The wall surface of the protrusion restricts the tail wing of the aforementioned positioning part between the aforementioned motor and the main frame, so that the tail wing will not loosen during the operation of the air compressor or when it is accidentally dropped or hit by external force.

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