Intake apparatus of a vehicle

Abstract

The intake device of a vehicle according to the disclosed invention comprises: a door portion that controls the opening and closing of an outside air inlet through which outside air of the vehicle enters and an inside air inlet through which inside air of the vehicle enters; an intake portion that inhales outside air and inside air in communication with the door portion; and a partition portion provided between the door portion and the intake portion, which provides resistance to the flow of inside air generated during the opening operation of the inside air inlet to linearly control the mixing rate of inside air relative to the rate of inside air inflow. With this configuration, the mixing rate of inside air relative to the rate of inside air inflow can be linearly controlled, thereby contributing to the improvement of intake performance.

Description

Technology Field

[0001] The present invention relates to an intake device for a vehicle. Background Technology

[0002] Generally, air conditioning systems are devices designed to maintain a comfortable indoor environment by controlling the temperature, humidity, and circulation of indoor air. They are primarily applied inside buildings or vehicles to regulate temperature and improve indoor air quality. Such systems are installed in vehicles to maintain the interior at an appropriate temperature or to ensure clear visibility while driving by compensating for temperature and humidity differences between the inside and outside of the vehicle.

[0003] Vehicle air conditioning systems cool or heat the vehicle interior by using indoor and outdoor air to cool or heat it through heat exchange, and then supplying it to the vehicle interior. Such vehicle air conditioning systems are equipped with blowers to draw in air from the vehicle interior or exterior, and the blowers are equipped with intake devices to selectively open or close the inflow of indoor or outdoor air. Meanwhile, in recent years, there has been a continuous demand for research to improve the performance of blowers for vehicles even during high-speed driving. The problem to be solved

[0004] The objective of the present invention is to provide an intake device for a vehicle that can improve performance by linearly controlling the internal mixing rate. means of solving the problem

[0005] An intake device for a vehicle according to the present invention for achieving the above objective comprises: a door portion that controls the opening and closing of an external air inlet through which external air of the vehicle is introduced and an internal air inlet through which internal air of the vehicle is introduced; an intake portion that communicates with the door portion to suck in the external air and the internal air; and a partition portion provided between the door portion and the intake portion to provide resistance to the flow of the internal air generated during the opening operation of the internal air inlet, thereby linearly controlling the mixing rate of the internal air relative to the inflow rate of the internal air.

[0006] Additionally, the door portion may include an intake body in which the outside air inlet and the inside air inlet are formed through each other adjacently, and an outlet for discharging the incoming outside air and the inside air is formed through; a first door provided inside the intake body to control the opening and closing of the outside air inlet; and a second door provided inside the intake body to control the opening and closing of the inside air inlet.

[0007] In addition, the first door may have a fan shape that rotates around a first axis axially connected to the interior of the intake body and has an arc length corresponding to the width of the outside air inlet.

[0008] In addition, the second door has an area capable of covering the internal intake port and rotates around a second axis axially connected to the interior of the intake body, and at least a portion of the rotation path of the second door may face the intake port.

[0009] In addition, one end of the second door is axially coupled to the intake body and the other end is provided as a rotating end, so as to be rotatable between an open position that opens the internal air inlet and a closed position that closes the internal air inlet, and a sliding door that can slide radially relative to the second door may be provided at the other end of the second door.

[0010] Additionally, one end of the second door is axially coupled to the interior of the intake body, and the other end is guided by a guide rail provided along the inner surface of the intake body, and the guide rail may include a first rail extending straight from the internal air inlet toward the suction part and a second rail extending curved from the first rail toward the external air inlet.

[0011] In addition, the suction part is provided with a suction port communicating with the door part, and the partition part may be provided with at least one adjacent to the suction port between the internal air inlet and the suction port.

[0012] In addition, the bulkhead may have a height lower than the height between the door and the intake port.

[0013] In addition, the total length of the above bulkhead may be in the range of 40% or more and 80% or less of the length of the suction part based on the longitudinal direction parallel to the above internal inlet.

[0014] In addition, when a plurality of the above bulkheads are provided, the spacing between the plurality of bulkheads may be smaller than or equal to the length of one of the bulkheads.

[0015] In addition, the thickness of the above partition may be 30% or less of the length from the suction port to the corner of the suction part.

[0016] In addition, the above-mentioned partition may include at least one partition provided in the space between the above-mentioned air inlet and the above-mentioned suction part to regulate the flow of the above-mentioned air flowing into the suction part by pressure generated from the above-mentioned air inlet.

[0017] An intake device for a vehicle according to another preferred aspect of the present invention may include a first door for opening and closing an external air inlet for external air to be introduced, a second door for opening and closing an internal air inlet for internal air to be introduced, and a door portion provided with an outlet for discharging the external air and the internal air, an intake portion provided with an intake port communicating with the outlet for inhaling the external air and the internal air, and a partition portion that interferes with the flow of the internal air mixed into the intake port to linearly control the mixing rate of the internal air relative to the inflow rate of the internal air introduced into the intake portion.

[0018] Additionally, the first door rotates around a first axis axially connected to the interior of the intake body and has a fan shape with an arc length corresponding to the width of the outside air inlet, and the second door rotates around a second axis axially connected to the interior of the intake body and has an area capable of covering the inside air inlet, and at least a portion of the rotation path of the second door may face the intake part.

[0019] Additionally, one end of the second door is axially coupled to the interior of the intake body, and the other end is guided by a guide rail provided along the inner surface of the intake body, and the guide rail may include a first rail extending straight from the internal air inlet toward the suction part and a second rail extending curved from the first rail toward the external air inlet.

[0020] In addition, at least one partition may be provided between the internal air inlet and the suction port, adjacent to the suction port.

[0021] In addition, the bulkhead may have a height lower than the height between the door and the intake port.

[0022] In addition, the total length of the above bulkhead may be in the range of 40% or more and 80% or less of the length of the suction part based on the longitudinal direction parallel to the above internal inlet.

[0023] In addition, when a plurality of the above bulkheads are provided, the spacing between the plurality of bulkheads may be smaller than or equal to the length of one of the bulkheads.

[0024] In addition, the thickness of the above partition may be 30% or less of the length from the suction port to the corner of the suction part. Effects of the invention

[0025] According to the present invention having the above-described configuration, the baffle can block the increase in the internal air mixing rate entering the intake port due to pressure changes caused by the increase in the intake area resulting from the opening of the internal air inlet. As a result, the internal air mixing rate with respect to the internal air inflow rate can be linearly controlled, thereby contributing to the improvement of intake performance.

[0026] In addition, the baffle section adjacent to the intake port is provided with a simple structure that generates resistance to the incoming air, making it easy to control the mixing rate of the air with a simple structure.

[0027] In addition, various embodiments are possible within the size range of the partition that does not block the flow of internal air mixed into the intake port, which is advantageous for ensuring versatility of use. Brief explanation of the drawing

[0028] FIG. 1 is a front view schematically illustrating an intake device of a vehicle according to a preferred embodiment of the present invention. FIG. 2 is a schematic plan view illustrating an intake device of a vehicle according to one embodiment shown in FIG. 1. Figure 3 is a schematic cross-sectional view taken by cutting along the line AA shown in Figure 2. FIG. 4 is a schematic cross-sectional view taken by cutting along the BB line shown in FIG. 2. FIG. 5 is a schematic plan view illustrating a modified example of an intake device of a vehicle according to one embodiment shown in FIG. 1. FIG. 6 is a graph schematically illustrating the internal air mixing rate with respect to the internal air inflow rate of the intake device of a vehicle according to one embodiment shown in FIG. 1. Specific details for implementing the invention

[0029] Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. However, the concept of the present invention is not limited to such an embodiment, and the concept of the present invention may be proposed differently by adding, changing, or deleting components constituting the embodiment, and such are also included within the concept of the invention.

[0031] Referring to FIG. 1, an intake device (1) of a vehicle according to a preferred embodiment of the present invention includes a door portion (10), an intake portion (50), and a bulkhead portion (80).

[0032] The door section (10) controls the inflow of outside air (F) entering from outside the vehicle and inside air (R) entering from inside the vehicle. This door section (10) includes an intake body (20), a first door (30), and a second door (40).

[0033] An intake body (20) is provided in the path of outside air (F) and inside air (R). In this intake body (20), an outside air inlet (21) and an inside air inlet (22) are formed through each other adjacently, and an outlet (23) through which outside air (F) and inside air (R) are discharged is formed at a position facing the outside air inlet (21). Here, at least a portion of the inside air inlet (22) may be formed through the intake body (20) so as to face the outlet (23). A grill (not shown) for filtering the incoming outside air (F) and inside air (R) may be provided in the outside air inlet (21) and the inside air inlet (22), but is not a limitation.

[0034] The outside air (F) and inside air (R) discharged through the outlet (23) of the intake body (20) are provided with a filter (24) provided at the outlet (23). It is preferable that this filter (24) be provided at the outlet (23) having a filtering area corresponding to the width of the outlet (23).

[0035] The first door (30) is provided inside the intake body (20) to control the opening and closing of the outside air inlet (21). This first door (30) rotates around a first axis (31) axially connected inside the intake body (20) and has a fan shape with an arc length corresponding to the width of the outside air inlet (21).

[0036] The first door (30) rotates around the first axis (31) between an outside air opening position that opens the outside air inlet (21) and an outside air closing position that closes the outside air inlet (21). For reference, FIG. 1 shows the outside air closing position where the first door (30) closes the outside air inlet (21). Additionally, the first door (30) may be connected to a power means, such as an actuator not shown, so that the rotational force is controlled, thereby allowing the opening range of the outside air inlet (21) to be adjusted.

[0037] The second door (40) is provided inside the intake body (20) to control the opening and closing of the internal air inlet (22). The second door (40) has an area capable of covering the internal air inlet (22) and rotates around a second shaft (41) axially connected inside the intake body (20), and at least a portion of the rotation path of the second door (40) faces the suction part (50).

[0038] The second door (40) is rotated around the second axis (41) at one end, and the rotation radius of the other end is guided by the guide rail (42). As the other end of the second door (40) is rotated around the second axis (41), it can rotate between an internal opening position that opens the internal inlet (22) and an internal closing position that closes the internal inlet (22).

[0039] At the other end of the second door (40), a sliding door (43) is provided to slide radially in the direction of the second door (40) to adjust the radius length of the second door (40). As this sliding door (43) slides radially in the direction of the second door (40), it moves along a guide rail (42) provided along the inner circumference of the intake body (20).

[0040] The guide rail (42) extends along the inner circumference of the intake body (20) from the internal air inlet (22) toward the interior of the intake body (20). The guide rail (42) includes a first rail (42a) that extends in a straight line from the internal air inlet (22) toward the suction part (50), and a second rail (42b) that extends in a curved line from the first rail (42a) toward the external air inlet (21). Here, the first rail (42a) of the guide rail (42) may extend in a straight line with a certain distance from the discharge port (23). Meanwhile, the second rail (42b) of the guide rail (42) extends to a position adjacent to the first axis (31) of the first door (30), so that the first door (30) and the second door (40) do not interfere with each other during mutual opening and closing operations.

[0041] Meanwhile, when the sliding door (43) moves along the first rail (42a) and the second rail (42b) in conjunction with the rotation of the second door (40), it slides away from the second door (40) to vary the rotation radius of the second door (40). At this time, the second door (40) and the sliding door (43) are positioned as a kind of partition that guides the flow of outside air (F) and inside air (R) between the outside air inlet (21) and the inside air inlet (22).

[0042] More specifically, regarding the second door (40), as the sliding door (43) moves along the first rail (42a) toward the second rail (42b), it is gradually discharged from the second door (40), thereby expanding the rotation radius of the second door (40). As a result, as the second door (40) is rotated to an internal opening position that opens the internal air inlet (22) 100%, the sliding door (43) slides away from the second door (40), extending the rotation radius and partitioning the space between the external air inlet (21) and the internal air inlet (22) like a partition wall.

[0043] Additionally, the sliding door (43) connected to the second door (40) passes through the first rail (42a) of the guide rail (42), thereby maintaining a certain distance between the second door (40) and the exhaust port (23). As a result, outside air (F) introduced through the outside air inlet (21) flows into the space between the second door (40) and the exhaust port (23), thereby blocking the generation of ram air that flows into the vehicle interior through the inside air inlet (22).

[0044] For reference, the second door (40), like the first door (30), is also connected to a driving means such as an actuator not shown, so that the rotational force is controlled, and the opening range of the internal air inlet (22) by the second door (40) is controlled between 0 and 100%. Meanwhile, the rotational force of the first door (30) and the second door (40) is controlled simultaneously, so that the outside air (F) and the inside air (R) can be simultaneously introduced into the interior of the intake body (20).

[0045] The suction part (50) is connected to the door part (10) to suck in outside air (F) and inside air (R), and includes a suction body (60) and a motor (70).

[0046] The intake body (60) is a type of intake chamber in which an intake port (61) communicating with the exhaust port (23) is formed through one side facing the exhaust port (23) of the intake body (20). As shown in FIG. 2, the intake port (61) is formed through the top of the intake body (60) in the shape of a circular hole.

[0047] The motor (70) is provided inside the suction body (60) and generates suction force. By rotating around the motor shaft (71), the motor (70) provides suction force to the connected door part (10) to suck in outside air (F) and inside air (R).

[0048] The partition section (80) is provided between the door section (10) and the suction section (50) to block the excessive inflow of internal air (R) occurring during the opening operation of the internal air inlet (22), thereby linearly controlling the mixing rate of internal air (R) into the suction section (50). This partition section (80) is a type of partition that interferes with the flow of internal air (R) entering the suction section (50) through the internal air inlet (22) opened by the second door (40). Additionally, the partition section (80) is provided adjacent to the suction port (61), and at least one is provided in the space between the suction port (61) and the internal air inlet (22).

[0049] As illustrated in FIG. 2, in this embodiment, two partition sections (80) are provided adjacent to the suction port (61). At this time, as illustrated in FIG. 3, the partition section (80) is provided adjacent to the suction port (61) on one side of the suction port (61) facing the internal air inlet (22), thereby controlling the mixing rate of the internal air (R) flowing from the internal air inlet (22) to the suction port (61). More specifically, the partition section (80) is provided in the space between the internal air inlet (22) and the suction section (50) to generate resistance to the internal air (R) flowing into the internal air inlet (22), thereby blocking sudden pressure changes.

[0050] For reference, as the second door (40) rotates along the guide rail (42) to open the internal air inlet (22), the suction area of ​​the internal air (R) widens at the point when the second door (40) faces the suction port (61). At this time, the internal air inlet (22) may be open by approximately 20%. When the suction area of ​​the internal air (R) widens in this way, the high pressure near the existing internal air inlet (22) is relieved, and the flow rate of the internal air (R) increases instantaneously, thereby increasing the mixing rate of the internal air (R). To block the non-linear change in the mixing rate of the internal air (R) caused by this instantaneous high pressure of the internal air (R), a partition (80) is provided near the suction port (61) and faces the internal air inlet (22) to provide resistance. That is, by arbitrarily controlling the pressure of the internal air (R) sucked from the internal air inlet (22) to the suction port (61) through the partition (80), the high pressure of the internal air (R) is prevented from being lowered instantaneously.

[0051] These bulkhead sections (80) are described in more detail with reference to FIGS. 2 to 4 as follows.

[0052] First, as shown in FIG. 2, the partition section (80) is provided with a total length (L) that is between 40% and 80% of the length (L0) of the suction section (50) based on the longitudinal direction parallel to the internal inlet (22). That is, when one or more partition sections (80) are provided, the total length (L), which is the sum of the lengths of all partitions, is smaller than the length (L0) of the suction section (50). The gap (G) between these partition sections (80) is less than or equal to the length of a single partition section (80). In addition, the thickness (D) of the partition section (80) is 30% or less of the length (D0) from the suction port (61) to the corner of the suction section (50).

[0053] Referring to FIG. 3, the partition (80) has a height (H) lower than the height (H0) between the door (10) and the intake port (61). Preferably, it has a height (H) lower than the height (H0) between the filter (24) provided at the outlet (23) of the door (10) and the intake port (61).

[0054] The range of the total length (L), gap (G), height (H), and thickness (D) of the partition (80) is such that the internal air (R) flowing into the suction body (60) is not blocked from being sucked into the suction port (61). If the total length (L), gap (G), height (H), and thickness (D) of the partition (80) deviate from the above-described range, the internal air (R) may be trapped between the partition (80) and the corner of the suction body (60).

[0055] Meanwhile, the partition (80) can be varied within a range of total length (L), spacing (G), height (H), and thickness (D) that does not block the flow of internal air (R) mixed into the suction port (61). That is, the size of the partition (80) can be varied according to various internal air (R) mixing conditions within a range of total length (L), spacing (G), height (H), and thickness (D) that does not exceed the range described above.

[0056] Meanwhile, in this embodiment, as shown in FIG. 4, two partition sections (80) are provided side by side between the corners of the suction port (61) and the suction section (50). However, the number of partition sections (80) is just an example, and various modified embodiments are possible as shown in FIG. 5 (a) and (b).

[0057] For example, as shown in FIG. 5(a), four partition sections (180) may be provided in the suction body (60) in a mutually longitudinally parallel manner adjacent to the suction port (61). Additionally, as shown in FIG. 5(b), one partition section (280) may be provided in the suction body (60) adjacent to the suction port (61). The partition sections (180) and (280) illustrated in FIG. 5(a) and (b) have an overall length (L), spacing (G), height (H), and thickness (D) as described with reference to FIG. 2 and FIG. 3.

[0058] For reference, the location of the partition (80) adjacent to the intake port (61) is not limited to only the locations shown in FIGS. 1 to 5, and can be modified to various locations adjacent to and spaced apart from the intake port (61).

[0059] The intake operation of outside air (F) and inside air (R) of the intake device (1) of a vehicle according to the present invention having the above configuration will be explained with reference to FIG. 1.

[0060] As shown in FIG. 1, the outside air inlet (21) is opened or closed by the rotation of the first door (30), and the inside air inlet (22) is opened or closed by the rotation of the second door (40). At this time, the opening or closing range of each of the outside air inlet (21) and the inside air inlet (22) is adjusted according to the rotation direction and rotation angle of the first door (30) and the second door (40).

[0061] Meanwhile, when the second door (40) rotates along the guide rail (42) and passes the position facing the suction port (61), the mixing rate of the internal air (R) with respect to the inflow rate of the internal air (R) intended to flow into the suction port (61) can be introduced non-linearly, as shown in FIG. 6 (a). More specifically, as the suction area of ​​the internal air (R) widens, the high pressure on the side of the internal air inlet (22) is relieved, causing the mixing rate of the internal air (R) with respect to the inflow rate of the internal air (R) to increase instantaneously. At this time, the partition (80) provided adjacent to the suction port (61) generates resistance to the flow rate of the internal air (R) intended to flow into the suction port (61) due to the increased pressure. As a result, the mixing rate of the internal air (R) with respect to the inflow rate of the internal air (R) is controlled linearly, as shown in FIG. 6 (b).

[0063] As described above, although the present invention has been explained with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0064] 1: Vehicle intake system 10: Door section 20: Intake body 21: Outside air inlet 22: Internal Inlet 23: Outlet 30: Door 1 40: 2nd door 50: Suction part 60: Suction body 70: Motor 80: Bulkhead F: Outside air R: Bet

Claims

Claim 1 An intake device for a vehicle comprising: a door portion for controlling the opening and closing of an outside air inlet through which outside air of the vehicle enters and an inside air inlet through which inside air of the vehicle enters; an intake portion communicating with the door portion to suck in the outside air and the inside air; and a partition portion provided between the door portion and the intake portion to provide resistance to the flow of the inside air generated during the opening operation of the inside air inlet, thereby linearly controlling the mixing rate of the inside air relative to the inflow rate of the inside air. Claim 2 The intake device of a vehicle according to claim 1, wherein the door portion comprises: an intake body in which the outside air inlet and the inside air inlet are formed through each other adjacently, and an outlet for discharging the introduced outside air and the inside air is formed through; a first door provided inside the intake body to control the opening and closing of the outside air inlet; and a second door provided inside the intake body to control the opening and closing of the inside air inlet. Claim 3 In paragraph 2, the first door rotates around a first axis axially connected to the interior of the intake body and has a fan-shaped form having an arc length corresponding to the width of the outside air inlet. Claim 4 In paragraph 2, the second door has an area capable of covering the internal intake port and rotates around a second axis axially connected to the interior of the intake body, wherein at least a portion of the rotation path of the second door faces the intake portion of the vehicle intake device. Claim 5 An intake device of a vehicle according to paragraph 2, wherein one end of the second door is axially coupled to the intake body and the other end is provided as a rotating end, so as to be rotatable between an open position for opening the internal air inlet and a closed position for closing the internal air inlet, and a sliding door capable of sliding radially relative to the second door is provided at the other end of the second door. Claim 6 In paragraph 2, one end of the second door is axially coupled to the interior of the intake body, and the other end is guided by a guide rail provided along the inner surface of the intake body, wherein the guide rail comprises a first rail extending straight from the internal air inlet toward the suction part and a second rail extending curvedly from the first rail toward the external air inlet. Claim 7 In claim 1, the intake portion is provided with an intake port communicating with the door portion, and the bulkhead portion is provided with at least one adjacent to the intake port between the internal air inlet and the intake port. Claim 8 In claim 7, the above bulkhead portion is a vehicle intake device having a height lower than the height between the door portion and the intake port. Claim 9 An intake device of a vehicle according to claim 7, wherein the total length of the bulkhead portion is in the range of 40% or more and 80% or less of the length of the intake portion based on the longitudinal direction parallel to the internal air inlet. Claim 10 In claim 7, when a plurality of the above bulkheads are provided, the gap between the plurality of bulkheads is less than or equal to the length of one of the bulkheads, in the intake device of a vehicle. Claim 11 In claim 7, the thickness of the bulkhead portion is 30% or less of the length from the intake port to the corner of the intake portion. Claim 12 The intake device of a vehicle according to claim 1, wherein the bulkhead portion is provided in the space between the internal air inlet and the intake portion, and includes at least one bulkhead that regulates the flow of internal air flowing into the intake portion by pressure generated from the internal air inlet. Claim 13 An intake device for a vehicle comprising: a door section having a first door for opening and closing an external air inlet for external air, a second door for opening and closing an internal air inlet for internal air, and an outlet for discharging the external air and the internal air; an intake section having an intake port communicating with the outlet for inhaling the external air and the internal air; and a partition section that interferes with the flow of the internal air mixed into the intake port to linearly control the mixing rate of the internal air relative to the inflow rate of the internal air entering the intake section. Claim 14 In claim 13, the first door rotates around a first axis axially connected to the interior of the intake body and has a fan shape having an arc length corresponding to the width of the outside air inlet, and the second door rotates around a second axis axially connected to the interior of the intake body having an area capable of covering the inside air inlet, wherein at least a portion of the rotation path of the second door faces the intake portion of the vehicle intake device. Claim 15 In claim 14, one end of the second door is axially coupled to the interior of the intake body, and the other end is guided by a guide rail formed along the inner surface of the intake body, wherein the guide rail comprises a first rail extending straight from the internal air inlet toward the intake portion and a second rail extending curvedly from the first rail toward the external air inlet. Claim 16 In paragraph 13, the above bulkhead is provided between the internal air inlet and the intake port, with at least one adjacent to the intake port, in an intake device of a vehicle. Claim 17 In paragraph 16, the above bulkhead portion is a vehicle intake device having a height lower than the height between the door portion and the intake port. Claim 18 An intake device of a vehicle according to claim 16, wherein the total length of the bulkhead portion is in the range of 40% or more and 80% or less of the length of the intake portion based on the longitudinal direction parallel to the internal air inlet. Claim 19 In paragraph 16, when a plurality of the above bulkheads are provided, the gap between the plurality of bulkheads is less than or equal to the length of one of the bulkheads, in the intake device of a vehicle. Claim 20 In claim 16, the thickness of the bulkhead portion is 30% or less of the length from the intake port to the corner of the intake portion.

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