Compressor and vehicle repair device including same

Abstract

A compressor according to an embodiment of the present disclosure may include: a motor configured to generate power; a connector device connected to the motor and provided to rotate; a cylinder in which a compression space for compressing air is formed; and a piston connected to one side of the connector device, configured to reciprocate between a top dead center and a bottom dead center in the compression space according to the rotation of the connector device, and configured to compress air in the compression space, wherein the cylinder includes an exhaust port for discharging air inside the compression space to the outside and an intake port for introducing outside air into the compression space.

Description

Compressor and vehicle repair device including the same

[0001] The present invention relates to a compressor and a vehicle repair device including the same, and more particularly to a compressor having cylinders and valves that can improve space efficiency and increase durability by simplifying the configuration of intake and exhaust valves, and a vehicle repair device including the same.

[0002] Compressors are essential mechanical devices used in various industrial fields to generate high pressure by compressing air or to control the flow of air or fluids in specific systems. Generally, compressors are widely utilized in air tools, factory automation systems, cooling systems, and vehicle engines. In particular, the demand for small compressors is increasing as they are widely used in household or commercial electronics, medical devices, air purifiers, and vehicle repair equipment.

[0003] Conventional compressor technology was developed primarily by compressing air using an eccentric shaft connected to a motor. In this method, the eccentric shaft performs circular motion driven by the rotation of the motor, and a piston connected to the eccentric shaft reciprocates inside the cylinder. During the reciprocating motion of the piston, the air inside the cylinder undergoes two main stages.

[0004] In the first stage, the piston moves in one direction, reducing the internal space of the cylinder and compressing the air. The compressed air is expelled from the cylinder through the exhaust port.

[0005] In the second stage, the piston moves in the opposite direction, expanding the internal space of the cylinder again, at which point external air is drawn into the cylinder through the intake valve. This structure fundamentally defines the operating principle of a compressor and has been utilized in most conventional technologies.

[0006] However, there were various limitations and disadvantages in Patent Document 1 (Japanese Registered Patent Publication No. 5636032), to which this conventional technology was applied. In particular, major problems arose in the structure and installation method of the intake valve. In the compressor device disclosed in Patent Document 1, a method was adopted in which the intake valve is formed on the piston itself.

[0007] Specifically, a through hole was formed in the piston to allow external air to enter, and a plate valve for opening and closing this through hole was fixed to the piston. Although this structure was initially considered a relatively simple design, the following problems emerged during use.

[0008] First, the structure integrating the intake valve into the piston resulted in an increase in the piston's volume. This contributed to an increase in the overall size of the compressor and acted as a significant constraint in the development of modern compressors, where miniaturization is a critical design requirement.

[0009] Second, there was a durability issue with the plate valve. During compressor operation, the piston and valve must withstand repetitive high-speed motion and pressure changes, which made the plate valve highly susceptible to damage. In particular, prolonged use resulted in valve wear, fatigue accumulation, cracking, or complete failure, leading to performance degradation and requiring frequent maintenance.

[0010] Third, the complexity of the manufacturing process increased during the process of forming through holes in the piston and fixing the valve. As the piston is a component requiring high precision, the process of forming the through holes and valve fixing parts resulted in longer machining times and increased costs. Furthermore, this manufacturing process acted as a factor increasing the defect rate, ultimately leading to a decrease in productivity.

[0011] Although various improvement measures have been studied to address the problems of the conventional technology described above, they still fall short of resolving the fundamental issues of the intake valve structure. To overcome these shortcomings of the conventional technology, the present invention proposes a new intake valve structure. Through this, the invention aims to realize a compressor and a vehicle repair device including the same, which improve manufacturing process efficiency, facilitate maintenance, and enable a compact design.

[0012] A compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor capable of miniaturization by simplifying the valve structure.

[0013] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor in which both the exhaust hole and the intake hole are machined into the cylinder so that manufacturing efficiency can be improved.

[0014] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor with excellent durability by manufacturing the intake valve from a flexible material.

[0015] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor that allows outside air to flow smoothly into the cylinder during the intake process by utilizing the shape of the intake valve.

[0016] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor that can improve exhaust and intake efficiency by aligning the driving direction of the piston with the relative positions of the exhaust hole and intake hole of the cylinder.

[0017] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor that can simultaneously secure airtightness and durability by having the intake valve made of a flexible material.

[0018] In addition, the compressor according to one embodiment of the present invention aims to solve the problem of providing a compressor capable of improving manufacturing efficiency and reducing the defect rate by machining both the exhaust hole and the intake hole on the flat surface of the cylinder.

[0019] In addition, the vehicle repair device according to one embodiment of the present invention aims to solve the problem of providing a vehicle repair device including the aforementioned compressor.

[0020] To solve the aforementioned problem, a compressor according to one embodiment of the present invention comprises: a motor that generates power; a connector device configured to rotate and connected to the motor; a cylinder having a compression space formed therein in which air is compressed; and a piston connected to one side of the connector device, which reciprocates between top dead center and bottom dead center in the compression space according to the rotation of the connector device and compresses the air inside the compression space; wherein the cylinder may include an exhaust port for discharging air inside the compression space to the outside; and an intake port for introducing air outside the compression space into the inside.

[0021] Additionally, the cylinder includes a cylinder side forming an outer surface; and a cylinder plane disposed at one end in the longitudinal direction of the cylinder side and forming the compression space together with the cylinder side; and the exhaust port and the intake port may be disposed spaced apart from each other on the cylinder plane.

[0022] Additionally, it further includes an intake valve located in the intake port to restrict the movement of air through the intake port, and the intake valve may be coupled to the inner side of the cylinder plane.

[0023] In addition, the intake port is composed of a plurality of intake holes penetrating the cylinder plane, the plurality of intake holes are arranged radially, the intake valve is formed of a flexible material, and when the air inside the compression space is lower than a preset intake pressure, it is spaced apart from the plurality of intake holes so that air outside the compression space flows into the compression space, and when the air inside the compression space is higher than the intake pressure, it can block the movement of air through the plurality of intake holes.

[0024] Additionally, the cylinder further includes a planar fixing portion extending toward the piston from the center of the plurality of intake holes arranged radially on the inner surface of the cylinder plane, and the intake valve may include a valve body arranged to face the plurality of intake holes; and a valve fixing hole formed to penetrate the center of the valve body, into which the planar fixing portion is inserted and fixed.

[0025] Additionally, the intake valve may include a plurality of guide recesses that are recessed on one side of the valve body facing the cylinder plane and are located between the circumference of the valve body and the valve fixing hole.

[0026] Additionally, the plurality of guide recesses extend in the radial direction of the valve body, and the plurality of guide recesses may be spaced radially inward from the circumference of the valve body.

[0027] In addition, the plurality of guide recesses may be arranged so as not to overlap along the penetration direction of the plurality of intake holes.

[0028] Meanwhile, the intake valve may include a plurality of valve protrusions formed to protrude from one surface of the valve body facing the cylinder plane and configured to be insertable into at least some of the plurality of intake holes.

[0029] In addition, the plurality of valve protrusions may be formed to correspond to each of the plurality of intake holes.

[0030] Additionally, the planar fixing part includes a cylinder-shaped fixing part projection protruding from the cylinder plane; and a fixing part head formed at the end of the fixing part projection; wherein the diameter of the fixing part head is formed to be larger than the diameter of the fixing part projection and the diameter of the valve fixing hole, and the diameter of the fixing part projection may be formed to be larger than the diameter of the valve fixing hole.

[0031] Additionally, the piston includes a piston body positioned facing the cylinder plane; and a piston holder extending from the piston body and connected to the connector device; and when the connector device rotates in one direction, when the piston body moves from the bottom dead center to the top dead center, one side of the piston body is arranged to be inclined downward with respect to the cylinder plane so as to move closer to the cylinder plane, and when the piston body moves from the top dead center to the bottom dead center, one side of the piston body is arranged to be inclined upward with respect to the cylinder plane so as to move away from the cylinder plane.

[0032] Additionally, the exhaust port may be located further from the piston body than the intake port when the piston body moves from the bottom dead center to the top dead center, and the intake port may be located further from the piston body than the exhaust port when the piston body moves from the top dead center to the bottom dead center.

[0033] In addition, the exhaust port and the intake port are arranged on both sides of the first diameter direction so as to be spaced apart from each other along the first diameter direction of the cylinder plane on the cylinder plane, and the first diameter direction may be provided perpendicular to the axial direction of the rotation axis of the connector device.

[0034] In addition, a vehicle repair device according to one embodiment of the present invention may be formed to include the aforementioned compressor.

[0035] A compressor according to one embodiment of the present invention has the effect of providing a compressor capable of miniaturization by simplifying the valve structure.

[0036] In addition, the compressor according to one embodiment of the present invention has the effect of providing a compressor in which both the exhaust hole and the intake hole are machined into the cylinder, thereby improving manufacturing efficiency.

[0037] In addition, the compressor according to one embodiment of the present invention has the effect of providing a compressor with excellent durability by making the intake valve out of a flexible material.

[0038] In addition, the compressor according to one embodiment of the present invention has the effect of providing a compressor that allows outside air to flow smoothly into the cylinder during the intake process by utilizing the shape of the intake valve.

[0039] In addition, the compressor according to one embodiment of the present invention has the effect of providing a compressor in which exhaust and intake efficiency can be improved by aligning the driving direction of the piston with the relative positions of the exhaust hole and the intake hole of the cylinder.

[0040] In addition, the compressor according to one embodiment of the present invention has the effect of providing a compressor that can simultaneously ensure airtightness and durability by having the intake valve made of a flexible material.

[0041] In addition, the compressor according to one embodiment of the present invention has the effect of improving manufacturing efficiency and reducing the defect rate by machining both the exhaust hole and the intake hole on the flat surface of the cylinder.

[0042] In addition, a vehicle repair device according to one embodiment of the present invention has the effect of providing a vehicle repair device including the aforementioned compressor.

[0043] FIG. 1 illustrates a vehicle repair device to which a compressor according to one embodiment of the present invention is applied.

[0044] FIG. 2 is an exploded view of a vehicle repair device to which a compressor according to one embodiment of the present invention is applied.

[0045] FIG. 3 illustrates a cylinder, piston, and intake valve of a compressor according to one embodiment of the present invention.

[0046] FIG. 4 shows a cross-section of a compressor according to one embodiment of the present invention. FIG. 4(a) shows the intake valve closing the intake port, and FIG. 4(b) shows the intake valve opening the intake port.

[0047] FIG. 5 illustrates an intake valve according to one embodiment of the present invention.

[0048] FIG. 6 illustrates an intake valve according to another embodiment of the present invention.

[0049] FIG. 7 illustrates an intake valve according to another embodiment of the present invention.

[0050] Hereinafter, embodiments are described in detail with reference to the attached drawings. However, various modifications may be made to the embodiments, and thus the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, and substitutions to the embodiments are included within the scope of the rights.

[0051] Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed forms, and the scope of this specification includes modifications, equivalents, or substitutions that fall within the technical concept.

[0052] Terms such as "first" or "second" may be used to describe various components, but these terms should be interpreted solely for the purpose of distinguishing one component from another. For example, the first component may be named the second component, and similarly, the second component may be named the first component.

[0053] When it is stated that a component is "connected" to another component, it should be understood that it may be directly connected to or coupled with that other component, or that there may be other components in between.

[0054] The terms used in the embodiments are for illustrative purposes only and should not be interpreted as intended to be limiting. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0055] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the embodiments pertain. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0056] In addition, when describing with reference to the attached drawings, identical components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. In describing the embodiments, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the embodiments, such detailed description is omitted.

[0057] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0058] In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the embodiments of the present invention.

[0059] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are exemplary, and therefore the present invention is not limited to the depicted details. Furthermore, in describing the present invention, if it is determined that a detailed description of related known technology may unnecessarily obscure the essence of the present invention, such detailed description is omitted. Where terms such as "includes," "has," or "is made up" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it includes cases where it includes the plural unless specifically stated otherwise.

[0060] In interpreting the components, they are interpreted to include a margin of error even in the absence of a separate explicit statement.

[0061] In the case of describing a positional relationship, for example, when the positional relationship between two parts is described using expressions such as 'on,' 'upper,' 'lower,' or 'next to,' one or more other parts may be located between the two parts unless 'immediately' or 'directly' is used.

[0062] When elements or layers are referred to as "on" another element or layer, this includes cases where another layer or element is placed directly on top of or in between. Throughout the specification, the same reference numerals refer to the same components.

[0063] The size and thickness of each component shown in the drawings are illustrated for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the illustrated components.

[0064] The features of each of the various embodiments of the present invention may be combined or combined with one another, either partially or wholly, and as will be fully understood by those skilled in the art, various technical interlocking and operation are possible, and each embodiment may be implemented independently of one another or together in an interlocking relationship.

[0065] FIG. 1 illustrates a vehicle repair device with a compressor applied according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of a vehicle repair device with a compressor applied according to one embodiment of the present invention.

[0066] Based on FIGS. 1 and 2, a vehicle repair device to which a compressor according to one embodiment of the present invention is applied will be described.

[0067] A vehicle repair device according to one embodiment of the present invention may include a case (2) that accommodates a compressor (1). The case (2) may be composed of an upper case (21) and a lower case (22). A receiving space is formed in the lower case (22), and the compressor (1) may be mounted in the receiving space.

[0068] The compressor (1) compresses air, and the generated compressed air can be supplied to the outside through an exhaust passage (not shown). The compressor (1) may be configured to include a motor (M), a cylinder (100), and a piston (200). The piston (200) reciprocates inside the cylinder (100) and can compress the air inside the cylinder (100).

[0069] The case (2) can be manufactured in various forms. FIG. 1 illustrates an example in which the case (2) is manufactured in the shape of a rectangular prism. The motor (M) can be selected from among several motors capable of operating with the DC power supply (DC 12V) of a vehicle. It is not limited to this, and the motor (M) can be driven by receiving power from various power sources. In addition, the motor (M) can be powered by a battery mounted in the case (2).

[0070] A vehicle repair device according to one embodiment of the present invention can be used to repair a vehicle by utilizing air compressed in a compressor (1). For example, high-pressure air generated in a compressor (1) according to one embodiment of the present invention can be used to seal a hole in a tire.

[0071] Meanwhile, a compressor according to one embodiment of the present invention may include a motor (M) that generates power, a connector device (C) configured to be connected to the motor and rotate, a cylinder (100) in which a compression space is formed inside in which air is compressed, and a piston (200) connected to one side of the connector device (C), which reciprocates between the top dead center and the bottom dead center in the compression space according to the rotation of the connector device (C) and compresses the air inside the compression space.

[0072] Various configurations may be applied to the connector device (C) above. FIG. 2 illustrates that the connector device (C) according to the present invention is composed of a driving gear (C1), an operating gear (C2), and an operating shaft (C3). The driving gear (C1) is connected to a motor and can rotate directly by the motor. The operating gear (C2) can rotate by meshing with the driving gear (C1). Additionally, the operating shaft (C3) can be eccentrically fixed to the operating gear (C2). The operating shaft (C3) is connected to a piston (200) and can cause the piston (200) to reciprocate between top dead center and bottom dead center.

[0073] In addition to the examples described above, various mechanical devices may be applied to the connector device (C) as long as it is configured to reciprocate the piston (200) between top dead center and bottom dead center. Various configurations may be applied to the connector device (C) that can convert the rotational motion of the motor (M) into the reciprocating motion of the piston (200) between top dead center and bottom dead center.

[0074] FIG. 3 illustrates a cylinder, piston, and intake valve of a compressor according to one embodiment of the present invention. FIG. 4 shows a cross-section of a compressor according to one embodiment of the present invention. FIG. 4(a) illustrates a state in which the intake valve closes the intake port, and FIG. 4(b) illustrates a state in which the intake valve opens the intake port. FIG. 5 illustrates an intake valve according to one embodiment of the present invention. FIG. 6 illustrates an intake valve according to another embodiment of the present invention. FIG. 7 illustrates an intake valve according to another embodiment of the present invention.

[0075] A compressor according to various embodiments of the present invention will be described with reference to FIGS. 1 to 7.

[0076] The cylinder (100) may include an exhaust port (101) for discharging air inside the compression space to the outside and an intake port (102) for introducing air outside the compression space into the inside. When the piston (200) moves from bottom dead center to top dead center, the air in the compression space may be compressed. If the pressure in the compression space is higher than a preset compression pressure, the compressed air in the compression space may be discharged by an exhaust valve (400) installed in the exhaust port (101). Additionally, when the piston (200) moves from top dead center to bottom dead center, air outside the compression space may be introduced into the compression space through the intake port (102).

[0077] Both the exhaust port (101) and the intake port (102) can be formed in the cylinder (100), and placing both configurations in the cylinder (100) has the effect of improving manufacturing efficiency. In addition, compared to forming the intake port (102) in the piston, the process is simplified and the required space is reduced, so the volume of the cylinder (100) and the piston (200) can be reduced.

[0078] Additionally, the cylinder (100) includes a cylinder side (110) forming an outer surface and a cylinder plane (120) disposed at one end in the longitudinal direction of the cylinder side (110) and forming the compression space together with the cylinder side (110), and the exhaust port (101) and the intake port (102) may be disposed spaced apart from each other on the cylinder plane (120).

[0079] Perforations can be performed on a specific surface to form an exhaust port (101) and an intake port (102). When forming the exhaust port (101) and the intake port (102) on the cylinder plane (120), the efficiency of the manufacturing process can be improved because perforations are performed on a flat surface. In addition, there is an effect of reducing the defect rate in the manufacturing process.

[0080] Additionally, the compressor (1) further includes an intake valve (300) located in the intake port (102) to restrict the movement of air through the intake port (102), and the intake valve (300) can be coupled to the inside of the cylinder plane (120). Since the intake valve (300) is located to the inside of the cylinder plane (120), it has the effect of preventing the volume of the compressor (1) from increasing due to the intake valve (300).

[0081] Meanwhile, an exhaust valve (400) is installed in the exhaust port (101) so that when the pressure inside the compression space is higher than the compression pressure, the compressed air inside the compression space can be discharged to the outside.

[0082] The intake port (102) is composed of a plurality of intake holes (102h) penetrating the cylinder plane (120), and the plurality of intake holes (102h) can be arranged radially. By arranging the plurality of intake holes (102h) radially, there is an effect of reducing flow resistance when air from outside the compression space flows into the interior.

[0083] The plurality of intake holes (102h) can be spaced apart from each other by equal intervals along a circular trajectory. That is, the plurality of intake holes (102h) can be arranged along the circumferential direction. Through this, air flow efficiency can be improved when air from outside the compression space flows into the interior.

[0084] In addition, a plurality of intake holes (102h) are provided so that sufficient air can be introduced into the cylinder (100) without forming the size of each intake hole (102h) large.

[0085] Additionally, the intake valve (300) is formed of a flexible material and is spaced apart from the plurality of intake holes (102h) when the air inside the compression space is lower than the preset intake pressure, so that air outside the compression space can flow into the compression space. Additionally, when the air inside the compression space is higher than the intake pressure, the intake valve (300) can close the plurality of intake holes (102h) to block the movement of air through the plurality of intake holes.

[0086] FIG. 4(a) illustrates a state in which the air inside the compression space is higher than the intake pressure. The intake valve (300) is in close contact with the cylinder plane (120) and can block the movement of air through a plurality of intake holes (102h).

[0087] FIG. 4(b) illustrates a state in which the air inside the compression space is lower than the intake pressure, and the intake valve (300) is spaced apart from the plurality of intake holes (102h), so that air outside the compression space flows into the compression space.

[0088] Referring to FIG. 4(a) and FIG. 4(b), the intake valve (300) is made of a flexible material, so its shape can be flexibly deformed according to the pressure difference, and it has the effect of being able to open or close a plurality of intake holes (102h).

[0089] Since the intake valve (300) is formed of a flexible material, it has the effect of effectively sealing the surroundings to maintain airtightness when blocking the flow of air through the plurality of intake holes (102h). In addition, since the intake valve (300) is made of a flexible material, it can be sufficiently compressed by a pressure difference, thereby improving airtightness.

[0090] In addition, the intake valve (300) is formed of a flexible material so that it can be flexibly compressed and restored without being damaged even when in contact with the piston (200). This has the effect of improving the durability of the compressor (1).

[0091] Additionally, the cylinder (100) further includes a planar fixing part (121) extending toward the piston from the center of the plurality of intake holes arranged radially on the inner surface of the cylinder plane (120), and the intake valve (300) may include a valve body (310) arranged to face the plurality of intake holes (102h) and a valve fixing hole (320) formed to penetrate the center of the valve body (310) and into which the planar fixing part (121) is inserted and fixed.

[0092] Referring to FIG. 5, the intake valve (300) may include a valve body (310) and a valve fixing hole (320). The valve body (310) is shown in the form of a disc, but is not limited thereto and can be manufactured in various shapes that can effectively open and close the intake port (102).

[0093] The intake valve (300) can be fixed inside the cylinder (100) in a manner where a flat fixing part (121) is inserted into the valve fixing hole (320) without a separate fastening member. Since no separate fastening member is involved, the volume required for fixing with a fastening member can be reduced. Therefore, there is an effect of reducing the overall size of the compressor (1).

[0094] Additionally, the intake valve (300) may include a plurality of guide recesses (330) that are recessed on one side of the valve body (310) facing the cylinder plane (120) and are located between the circumference of the valve body (310) and the valve fixing hole (320).

[0095] Referring to FIG. 6, the intake valve (300) may include a valve body (310), a valve fixing hole (320), and a plurality of guide recesses (330). The plurality of guide recesses (330) may be manufactured using a mold for manufacturing the intake valve (300). Additionally, the guide recesses (330) may be implemented by removing a part of the valve body (310). However, the above-described manufacturing method is merely an example, and it is understood that the guide recesses (330) can be formed in various ways.

[0096] In FIG. 6, the guide recess (330) is provided in a straight shape, but is not limited thereto, and the guide recess (330) can be formed in a spiral shape. By doing so, the speed of air flowing into the cylinder (100) can be increased.

[0097] The above guide recess (330) has the effect of guiding the flow of air when air from outside the compression space is introduced through a plurality of intake holes (102h), thereby improving the air intake effect. Through this, sufficient air can be introduced into the compression space. Therefore, the performance of the compressor (1) can be improved.

[0098] Additionally, the plurality of guide recesses (330) extend radially from the valve body (310), and the plurality of guide recesses (330) may be spaced radially inward from the circumference of the valve body (310).

[0099] If the guide recess (330) is spaced radially inward from the circumference of the valve body (310), the airtightness of the intake valve (300) can be prevented from being weakened by the guide recess (330). Since a recessed shape such as the guide recess (330) is prevented from being formed on the circumferential surface of the valve body (310), air can be prevented from leaking out through the recessed part.

[0100] Accordingly, the intake valve (300) can effectively close the intake port (102) when the air in the compression space is compressed, thereby improving the compression efficiency of the compressor (1). At the same time, the intake valve (300) can improve intake efficiency through the guide recess (330). That is, the shape of the guide recess (330) described above has the effect of improving the compression and intake efficiency of the compressor (1).

[0101] Additionally, the plurality of guide recesses (330) may be arranged so as not to overlap along the through-direction of the plurality of intake holes (102h). When the intake valve (300) is in close contact with the cylinder plane (120) to close the plurality of intake holes (102h), the plurality of guide recesses (330) and the plurality of intake holes (102h) may be prevented from overlapping each other.

[0102] A single intake hole (102h) may be arranged between a pair of adjacent guide recesses (330). Additionally, the plurality of guide recesses (330) and the plurality of intake holes (102h) may be arranged alternately. In this way, when the intake holes (102h) and guide recesses (330) are arranged alternately so as not to overlap each other, the sealing performance of the intake valve (300) is improved, and the compression efficiency of the compressor (1) is increased.

[0103] Meanwhile, the intake valve (300) may include a plurality of valve protrusions (340) formed to protrude from one surface of the valve body (310) facing the cylinder plane (120) and configured to be insertable into at least some of the plurality of intake holes (102h).

[0104] Referring to FIG. 7, the intake valve (300) may include a valve body (310), a valve fixing hole (320), and a plurality of valve protrusions (340). The valve protrusions (340) may be insertable into the plurality of valve holes (102h).

[0105] When the intake valve (300) opens the plurality of intake holes (102h), the valve projection (340) may be spaced apart from the intake holes (102h). On the other hand, when the intake valve (300) closes the plurality of intake holes (102h), the valve projection (340) may be inserted into the intake holes (102h).

[0106] Additionally, the plurality of valve protrusions (340) may be formed to correspond to each of the plurality of intake holes (102h). For example, if there are 8 intake holes (102h), the valve protrusions (340) may also be formed in 8. Additionally, the valve protrusions (340) may be arranged in a position where they can be inserted into the intake holes (102h) when the valve body (310) is in close contact with the cylinder plane (120).

[0107] In this way, the valve projection (340) can maximize the effect of the intake valve (300) closing the intake port (102). This has the effect of improving the compression efficiency of the compressor (1). If the intake valve (300) is formed of a flexible material, the valve projection (340) can be flexibly compressed and smoothly inserted into the intake hole (102h).

[0108] Since the intake valve (300) is made of a flexible material, when exhausting compressed air inside the cylinder (100), a part of the intake valve (300) can be inserted into the intake hole (102h) side by the air pressure regardless of the presence or absence of the valve protrusion (340). However, the airtightness can be further improved by providing the valve protrusion (340).

[0109] Additionally, the planar fixing part (121) includes a cylinder-shaped fixing part projection (122) protruding from the cylinder plane (120) and a fixing part head (123) formed at the end of the fixing part projection (122), and the diameter of the fixing part head (123) is formed to be larger than the diameter of the fixing part projection (122) and the diameter of the valve fixing hole (320), and the diameter of the fixing part projection (122) can be formed to be larger than the diameter of the valve fixing hole (320).

[0110] Due to this difference in diameter, the intake valve (300) can be fitted into the flat fixing part (121) when fastened. The intake valve (300) can be formed of a flexible material to facilitate the fitting. However, since the diameter of the valve fixing hole (320) is provided to be the smallest after the fitting is completed, it is possible to prevent a gap from forming between the valve fixing hole (320) and the circumference of the fixing part projection (122). In addition, it has the effect of preventing the intake valve (300) from detaching from the flat fixing part (121).

[0111] Additionally, the piston (200) includes a piston body (210) positioned facing the cylinder plane (120) and a piston holder (220) extending from the piston body (210) and connected to the connector device (C). When the connector device (C) rotates in one direction, the piston body (210) moves from the bottom dead center to the top dead center, and one side of the piston body (210) is arranged to be inclined downward relative to the cylinder plane (120) so as to move closer to the cylinder plane (120). When the piston body (210) moves from the top dead center to the bottom dead center, one side of the piston body (210) is arranged to be inclined upward relative to the cylinder plane (120) so as to move away from the cylinder plane (120).

[0112] The piston holder (220) may include a holder body (221) extending from the piston body (210) and a holder hole (222) formed through the holder body (221). An operating shaft (C3) may be fastened to the holder hole (222). An operating shaft (C3) may be inserted and fastened to the holder hole (222).

[0113] Instead of moving vertically up and down within the compression space, the piston (200) can move back and forth between the top dead center and the bottom dead center while following a specific trajectory. At this time, the piston body (210) can move up and down with the cylinder plane (120) forming a predetermined angle.

[0114] While the piston (200) moves from the bottom dead center to the top dead center, that is, during the process in which the air inside the compression space is compressed, the piston body (210) and the cylinder plane (120) can form a positive angle.

[0115] On the other hand, while the piston (200) moves from top dead center to bottom dead center, that is, during the process of air flowing into the compression space, the piston body (210) and the cylinder plane (120) may form a negative angle.

[0116] When the above piston (200) reaches the top dead center and bottom dead center, the piston body (210) and the cylinder plane (120) can be arranged side by side.

[0117] The exhaust port (101) is positioned further away from the piston body (210) than the intake port (102) when the piston body (210) moves from the bottom dead center to the top dead center, and the intake port (102) can be positioned further away from the piston body (210) than the exhaust port (101) when the piston body (210) moves from the top dead center to the bottom dead center.

[0118] That is, by designing the exhaust port (101) and intake port (102) where air flow occurs to be relatively far apart from the piston body (210), the effect of improving exhaust and intake efficiency can be achieved.

[0119] More specifically, when air is drawn into the compression space, the piston body (210) and the exhaust port (101) can be positioned further apart from the piston body (210) and the intake port (102) due to the inclination of the piston body (210).

[0120] Conversely, when exhausting air from the compression space, the piston body (210) and the intake port (102) can be positioned further apart from the piston body (210) and the exhaust port (101) due to the inclination of the piston body (210).

[0121] Through such a position design, the exhaust and intake effects of the compressor (1) can be improved.

[0122] The exhaust port (101) and the intake port (102) are arranged on both sides of the first diameter direction so as to be spaced apart from each other along the first diameter direction of the cylinder plane (120) on the cylinder plane (120), and the first diameter direction may be arranged perpendicular to the axial direction of the rotation axis of the connector device (C).

[0123] That is, the exhaust port (101) and the intake port (102) may be spaced apart from each other on both sides in the radial direction with respect to the center of the cylinder plane (120). At this time, the first radial direction may refer to a direction perpendicular to the axial direction of the rotation axis of the connector device (C). Accordingly, when the piston body (210) is positioned at an angle with respect to the cylinder plane (120), the spacing between the exhaust port (101) or the intake port (102) and the piston body (210) can be maximized. Through this, the exhaust and intake effects can be improved.

[0124] Although embodiments of the present invention have been described in more detail with reference to the attached drawings, the present invention is not necessarily limited to these embodiments and may be modified in various ways within the scope of the technical spirit of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of protection of the present invention shall be interpreted by the claims below, and all technical spirits within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0125] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims set forth below.

Claims

1. A motor that generates power; A connector device configured to be connected to and rotate the above motor; A cylinder in which a compression space is formed inside where air is compressed; and A piston connected to one side of the connector device, which reciprocates between the top dead center and bottom dead center in the compression space according to the rotation of the connector device, and which compresses the air inside the compression space; The above cylinder is An exhaust port for discharging air inside the above-mentioned compression space to the outside; and A compressor characterized by including an intake port for introducing air from outside the above-mentioned compression space into the interior.

2. In Paragraph 1, The above cylinder is Cylinder side forming the outer surface; and A cylinder plane disposed at one end in the longitudinal direction of the cylinder side and forming the compression space together with the cylinder side; A compressor characterized in that the exhaust port and the intake port are spaced apart from each other on the cylinder plane.

3. In Paragraph 2, It further includes an intake valve located in the intake port and restricting the movement of air through the intake port, and A compressor characterized in that the intake valve is coupled to the inner side of the cylinder plane.

4. In Paragraph 3, The above intake port is composed of a plurality of intake holes penetrating the cylinder plane, and the plurality of intake holes are arranged radially. A compressor characterized in that the intake valve is formed of a flexible material, and when the air inside the compression space is lower than a preset intake pressure, it is spaced apart from the plurality of intake holes to allow air outside the compression space to flow into the compression space, and when the air inside the compression space is higher than the intake pressure, it blocks the movement of air through the plurality of intake holes.

5. In Paragraph 4, The cylinder further includes a planar fixing portion extending toward the piston from the center of the plurality of intake holes arranged radially on the inner surface of the cylinder plane, and The intake valve comprises a valve body positioned to face the plurality of intake holes; and A compressor characterized by including a valve fixing hole formed to penetrate the center of the valve body, into which the planar fixing part is inserted and fixed.

6. In Paragraph 5, A compressor characterized in that the intake valve includes a plurality of guide recesses that are recessed on one surface of the valve body facing the cylinder plane and are located between the circumference of the valve body and the valve fixing hole.

7. In Paragraph 6, A compressor characterized in that the plurality of guide recesses extend in the radial direction of the valve body, and the plurality of guide recesses are spaced radially inward from the circumference of the valve body.

8. In Paragraph 7, A compressor characterized in that the plurality of guide recesses are arranged to prevent overlapping along the penetration direction of the plurality of intake holes.

9. In Paragraph 5, A compressor characterized in that the intake valve comprises a plurality of valve protrusions formed to protrude from one surface of the valve body facing the cylinder plane and configured to be insertable into at least some of the plurality of intake holes.

10. In Paragraph 9, A compressor characterized in that the plurality of valve protrusions are formed to correspond to each of the plurality of intake holes.

11. In Paragraph 5, The above-mentioned planar fixing part is A cylinder-shaped fixing projection protruding from the above cylinder plane; and It includes a fixing head formed at the end of the above-mentioned fixing projection; and The diameter of the above-mentioned fixed head is formed to be larger than the diameter of the above-mentioned fixed projection and the diameter of the above-mentioned valve fixing hole, and A compressor characterized in that the diameter of the fixed projection is formed to be larger than the diameter of the valve fixing hole.

12. In Paragraph 4, The above piston is A piston body positioned facing the above cylinder plane; and A piston holder extending from the piston body and connected to the connector device; comprising When the above connector device rotates in one direction, When the piston body moves from the bottom dead center to the top dead center, one side is arranged to be inclined downward with respect to the cylinder plane and approaches the cylinder plane, and A compressor characterized in that, when the piston body moves from the top dead center to the bottom dead center, one side is arranged to be inclined upward with respect to the cylinder plane and moves away from the cylinder plane.

13. In Paragraph 12, The exhaust port is positioned further from the piston body than the intake port when the piston body moves from the bottom dead center to the top dead center, and A compressor characterized in that the intake port is positioned further from the piston body than the exhaust port when the piston body moves from the top dead center to the bottom dead center.

14. In Paragraph 13, The exhaust port and the intake port are arranged on both sides of the first diameter direction so as to be spaced apart from each other along the first diameter direction of the cylinder plane on the cylinder plane, and A compressor characterized in that the first diameter direction is perpendicular to the axial direction of the rotation axis of the connector device.

15. A vehicle repair device comprising a compressor according to paragraphs 1 through 14.

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