KR20240050057A - Door for air conditioning apparatus and air conditioning apparatus for vehicle comprising the same - Google Patents

Abstract

Disclosed is a door for an air conditioning device improved to have the same level of strength against torsional force as a conventional door for an air conditioning device while reducing the amount of deformation after ejecting a mold, and an air conditioning device for a vehicle including the same.
The door for an air conditioning device includes a rotating shaft rotatably disposed inside the air conditioning case; a plate connected to the rotating shaft and rotating with the rotating shaft to open and close a space inside the air conditioning case; and a rib disposed on the plate along the longitudinal direction of the plate to support the plate. It includes, wherein the ribs include: a fillet portion disposed in a corner area formed at a portion where the plate and the rib meet and connecting the plate and the rib; Includes.

Description

Door for air conditioning device and air conditioning device for vehicle including the same {DOOR FOR AIR CONDITIONING APPARATUS AND AIR CONDITIONING APPARATUS FOR VEHICLE COMPRISING THE SAME}

The present invention relates to a door for an air conditioning device and an air conditioning device for a vehicle including the same.

Automotive air conditioning systems are installed for the purpose of cooling and heating the car interior, or removing frost that accumulates on the windshield during rainy weather or winter, so that the driver can secure front and rear visibility.

Such an air conditioning device for a vehicle may include an air conditioning case having a plurality of openings to allow outside air to enter and indoor air to discharge, and an air conditioning device door disposed inside the air conditioning case.

Among them, the door for the air conditioning device is rotatably disposed inside the air conditioning case to open and close the internal space of the air conditioning case and to control the direction of movement of air.

A door for a conventional air conditioning device may include a plate disposed inside the air conditioning case and rotated to change the internal flow path of the air conditioning case.

Conventional doors for air conditioning devices perform mold work by setting the thickness of the plate to approximately 3T (3mm). In this case, the amount of shrinkage due to cooling after taking out the mold product increases, which increases the amount of deformation of the plate. There is. For this purpose, ribs may generally be installed on the outer surface of the plate to suppress damage from twisting force when the air conditioning device door rotates. A plurality of ribs are installed on the plate, and the plurality of ribs are spaced apart from each other.

However, in conventional doors for air conditioning devices, if the distance between ribs spaced apart from each other is greater than the thickness of the ribs, the cost of manufacturing a mold for shaping the molded product increases.

Therefore, the need for a door for an air conditioning device that includes a plate that has less deformation after mold ejection compared to a door for a conventional air conditioning device and has an equivalent level of strength against torsional force compared to a door for a conventional air conditioning device is increasing. there is.

The present invention is intended to solve the above problems, and the purpose of the embodiments of the present invention is to improve air conditioning so that the amount of deformation after mold ejection is small and the strength against torsional force is equivalent to that of a door for a conventional air conditioning device. The object is to provide a device door and a vehicle air conditioning device including the same.

A door for an air conditioning device according to an embodiment of the present invention includes a rotating shaft rotatably disposed inside an air conditioning case; a plate connected to the rotating shaft and rotating with the rotating shaft to open and close a space inside the air conditioning case; and a rib disposed on the plate along the longitudinal direction of the plate to support the plate. It includes, wherein the ribs include: a fillet portion disposed in a corner area formed at a portion where the plate and the rib meet and connecting the plate and the rib; Includes.

The fillet portion may have a shape in which the cross-sectional area increases in a direction from the center toward the end.

The fillet portion may be formed at an end of the rib on the side where the driving portion is disposed.

The thickness of the rib may be the same as the thickness of the plate.

The ribs protrude outward from the rotation axis, and include a first rib protruding to one side between the plates; and a second rib protruding from the other side between the plates; It includes, and the fillet portion may be disposed on the first rib.

The ribs may be provided in plural numbers and spaced apart from each other on the plate, and the thickness of the ribs and the distance between each rib may have the same length.

Additionally, a vehicle air conditioning device according to an embodiment of the present invention includes an air conditioning case; and a door for an air conditioning device disposed inside the air conditioning case. It includes, wherein the door for the air conditioning device includes: a rotating shaft rotatably disposed inside the air conditioning case; a plate connected to the rotating shaft and rotating with the rotating shaft to open and close a space inside the air conditioning case; and a rib disposed on the plate along the longitudinal direction of the plate to support the plate. It includes, wherein the ribs include: a fillet portion disposed in a corner area formed at a portion where the plate and the rib meet and connecting the plate and the rib; Includes.

The fillet portion may have a shape in which the cross-sectional area increases in a direction from the center toward the end.

The thickness of the rib may have a thickness corresponding to the thickness of the plate.

The rib includes: a first rib protruding from the plate in a direction toward the center of the rotation axis; and a second rib protruding from the plate in a direction toward the edge of the rotation axis. and the fillet portion may be disposed on the first rib. The rib may include a protrusion protruding from an end of the second rib to the outside of the second rib along a direction in which the second rib extends; It further includes, and the protrusion may contact the inner wall surface of the air conditioning case.

According to an embodiment of the present invention, the stiffness of the end portion of the rib that meets the rotation axis on the side to which the driving unit is connected can be increased by arranging the fillet portion in the corner area formed at the intersection between the plate and the rotation axis. Accordingly, since stress such as torsional force generated in the corner area is distributed through the fillet portion, the probability of damage to the rotation axis and plate corresponding to the corner area can be reduced.

Additionally, according to an embodiment of the present invention, the thickness of each rib and the distance between ribs may have the same length. Therefore, the cost of mold manufacturing can be reduced as the distance between ribs increases in the mold manufacturing stage.

In addition, according to an embodiment of the present invention, since the thickness of the rib is the same as the thickness of the plate, when the plate is rotated together with the rotation axis, the torsional force transmitted from the rotation axis to the plate is lower than when the thickness of the rib is thinner than the thickness of the plate. As the withstanding force increases, the probability of the plate being damaged can be reduced.

1 is a cross-sectional view showing the inside of an air conditioning case of a vehicle air conditioning device according to an embodiment of the present invention.
Figure 2 is a perspective view of a door for an air conditioning device.
Figure 3 is an enlarged view showing part A of Figure 2 from the front.
Figure 4 is a cross-sectional view taken along line BB in Figure 3.
Figure 5 is a diagram showing a protrusion disposed on the second rib.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as “at least one (or more than one) of A, B, and C,” it is combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only used to distinguish the component from other components, and are not limited to the essence, order, or order of the component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also is connected to the other component. It may also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.

Additionally, when described as being formed or disposed “on top or bottom” of each component, top or bottom refers not only to cases where two components are in direct contact with each other, but also to one component. This also includes cases where another component described above is formed or disposed between two components. In addition, when expressed as “top (above) or bottom (bottom)”, it can include not only the upward direction but also the downward direction based on one component.

Hereinafter, an air conditioning device door and a vehicle air conditioning device including the same will be described in detail with reference to the attached drawings. However, regardless of the drawing symbols, identical or corresponding components will be assigned the same reference numbers and duplicate descriptions thereof will be omitted. Do this.

Figure 1 is a cross-sectional view showing the inside of an air conditioning case of a vehicle air conditioning system according to an embodiment of the present invention, Figure 2 is a perspective view of the door for the air conditioning system, and Figure 3 is an enlarged view showing part A of Figure 2 from the front. , and FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3.

Referring to FIGS. 1 to 4 , the vehicle air conditioning device 100 according to an embodiment of the present invention is connected to a rotating shaft 142 and a rotating shaft 142 rotatably disposed inside the air conditioning case 120, A plate 144 that rotates with the rotation axis 142 to open and close the space inside the air conditioning case 120, and a rib 146 disposed on the plate 144 along the longitudinal direction of the plate 144 to support the plate 144. ) includes.

The air conditioning case 120 may be provided with an empty interior to accommodate a blower unit (not shown) and an evaporator (not shown). A plurality of openings may be formed in the air conditioning case 120 to be used as a passage for bringing in outside air and as a passage for discharging the air contained therein to the outside.

The door 140 for an air conditioning device may include a rotating shaft 142, a plate 144, and a rib 146.

The rotation shaft 142 may be rotatably disposed inside the air conditioning case 120. Additionally, the rotation shaft 142 may be connected to a driving unit (not shown) such as an actuator disposed inside the air conditioning case 120 and rotated by the operation of the driving unit (not shown). Here, the driving unit (not shown) is disposed on either one end or the other end of the rotation shaft 142. The rotation axis 142 may be provided in a cylindrical shape, but is not limited thereto. A plurality of rotation shafts 142 are provided. The rotation axis 142 may be disposed on both sides of the plate 144.

Plate 144 may be connected to the rotation shaft 142. The plate 144 may be rotated together with the rotation axis 142 by rotation of the rotation axis 142. The plate 144 can open and close the internal space of the air conditioning case 120 by rotating. As a result, the internal flow path of the air conditioning case 120 may be changed.

The plate 144 may include a first plate 144a and a second plate 144b arranged to have an expansion angle between 90° and 120°. The first plate 144a and the second plate 144b may be provided in a rectangular shape, but are not limited thereto.

The ribs 146 may be disposed on the outer and inner surfaces of the plate 144 along the longitudinal direction of the plate 144, respectively. The ribs 146 may be disposed on the plate 144 to support the plate 144. The ribs 146 are disposed between the rotation axes 142 disposed on both sides of the plate 144, and have a length that contacts the rotation axis 142 and the other rotation axis 142 along the longitudinal direction of the plate 144. You can have

Referring to FIG. 4 , the thickness T1 of the rib 146 may be equal to the thickness T2 of the plate 144 . Therefore, when the plate 144 is rotated together with the rotation axis 142, the thickness T1 of the rib 146 is thinner than the thickness T2 of the plate 144 than when the plate 144 is rotated from the rotation axis 142 to the plate 144. The force withstanding the transmitted torsional force may be increased, thereby reducing the probability that the plate 144 will be damaged. In addition, when the thickness T1 of the rib 146 and the thickness T2 of the plate 144 are the same, each The gap between the ribs 146 is widened, allowing smooth ejection of the mold product.

The ribs 146 may include a first rib 146a and a second rib 146b.

Referring to FIG. 3, the first rib 146a may protrude to one side between the plates 144. The first rib 146a may include a 1-1 rib 146a1, a 1-2 rib 146a2, and a 1-3 rib 146a3.

The 1-1 rib 146a1 may be disposed on the first plate 144a. The 1-2 rib 146a2 may be disposed on the second plate 144b. The 1-3 rib 146a3 may be disposed between the 1-1 rib 146a1 and the 1-2 rib 146a2. Additionally, the 1-3 rib 146a3 may be disposed at a portion where the first plate 144a and the second plate 144b are connected. The 1-1 rib 146a1, the 1-2 rib 146a2, and the 1-3 rib 146a3 may be arranged to be parallel to each other, as shown in FIG. 4 . In particular, the force to withstand stress that may occur at a portion where the first plate 144a and the second plate 144b meet and connect to each other through the 1-3 rib 146a3 can be increased.

The 1-1 rib (146a1), the 1-2 rib (146a2), and the 1-3 rib (146a3) are spaced apart from the first plate (144a) and the second plate (144b), and the 1-1 rib (146a1), the thickness (T1) of the 1-2 rib (146a2) and the 1-3 rib (146a3) and the distance (D) between the 1-1 rib (146a1) and the 1-2 rib (146a2) Alternatively, the distance D between the 1-2 rib 146a2 and the 1-3 rib 146a3 may have the same length.

This is the distance (D) between the 1-1 rib (146a1) and the 1-2 rib (146a2) or the distance between the 1-2 rib (146a2) and the 1-3 rib (146a3) in the mold manufacturing stage. This may mean that the cost required to manufacture the mold increases as (D) moves away. Therefore, the thickness T1 of the 1-1 rib (146a1), the 1-2 rib (146a2), and the 1-3 rib (146a3) is divided into the 1-1 rib (146a1) and the 1-2 rib (146a2). ), or by setting it to have the same length as the distance (D) between the 1-2 ribs (146a2) and the 1-3 ribs (146a3), the cost for mold manufacturing can be reduced. there is.

The second rib 146b may protrude to the other side between the plates 144. The second ribs may be spaced apart with the plate 144 therebetween. Accordingly, the second rib 146b may have a shape symmetrical to the first rib 146a with respect to the center of the rotation axis 142. The second rib 146b may be provided in a configuration that corresponds to that of the first rib 146a.

Below, a structure that distributes stress generated at the area where the rotation axis 142 and the plate 144 meet and connect will be described.

The rib 146 may include a fillet portion 147. The fillet portion 147 may be disposed on the first rib 146a. The fillet portion 147 may be disposed in a corner area C formed where the plate 144 and the rotation axis 142 meet. The fillet portion 147 may be formed in the 1-1 rib 146a1 and the 1-2 rib 146a2, respectively.

The fillet portion 147 may have a shape in which the cross-sectional area gradually increases in a direction from the center of the 1-1 rib 146a1 or the 1-2 rib 146a2 toward the end. Additionally, the fillet portion 147 may have a shape that protrudes from the edge of the rotation axis 142 in a direction toward the center of the rotation axis 142. The fillet portions 147 formed on the 1-1 rib 146a1 and the 1-2 rib 146a2 may be provided in a curved shape so that their ends face each other.

As shown in FIG. 3, the fillet portion 147 is disposed in the corner area C formed at the intersection of the plate 144 and the rotation axis 142, thereby forming the 1-1 rib 146a1 and the 1-2 rib 146a1. The rigidity of the ends of the ribs 146a2 may be increased. Accordingly, stress such as torsional force generated in the corner region C formed where the plate 144 and the rotation axis 142 meet can be distributed through the fillet portion 147. Accordingly, the probability that the rotation axis 142 and the plate 144 corresponding to the corner area C will be damaged may be reduced.

Additionally, the fillet portion 147 may be formed at an end of the rib 146 on the side where the driving unit (not shown) is disposed. More specifically, the rotation axis 142 is connected to a driving unit (not shown) disposed inside the air conditioning case (not shown). At this time, the fillet part 147 is connected to the rotation axis 142 to which the driving unit (not shown) is connected. It may be formed at the end of the 1-1 rib 146a1 on the side in contact with. Additionally, the fillet portion 147 may be formed at the end of the 1-2 rib 146a2 on the side in contact with the rotation shaft 142 to which the driving unit (not shown) is connected.

When the air conditioning device door 140 is rotated, the driving force generated by the driving unit (not shown) is transmitted directly to the corner area C formed at the intersection of the plate 144 and the rotating shaft 142 through the rotating shaft 142. It can be. Accordingly, deformation of the corner area C due to the driving force generated from the driving unit (not shown) can be prevented through the fillet portion 147.

The air conditioning device 100 for a vehicle according to an embodiment of the present invention has a fillet portion 147 disposed at the ends of the 1-1 rib 146a1 and the 1-2 rib 146a2 formed on the door 140 for the air conditioning device. By increasing the durability of the air conditioning device door 140 by increasing its rigidity, the lifespan of the air conditioning device door 140 can be maintained. Accordingly, the cost of repairing the vehicle air conditioning device 100 can be reduced, and the reliability of the vehicle air conditioning device 100 can be improved.

Below, the protrusion will be described.

Figure 5 is a diagram showing a protrusion disposed on the second rib.

Referring to FIG. 5, the rib 146 may further include a protrusion 146c. The protrusion 146c may be disposed at the end of the second rib 146b. More specifically, the protrusion 146c is located on the outside of the second rib 146b at the end of the second rib 146b along the direction in which the second rib 146b extends from the plate 144. may protrude. The protrusion 146c may be disposed on any one of the plurality of second ribs 146b other than the centrally disposed second rib 146b. The protrusion 146c may be provided to have a length along the longitudinal direction of the second rib 146b.

The protrusion 146c may contact the inner wall surface (not shown) of the air conditioning case 120. When contacting the inner wall surface (not shown) of the air conditioning case 120, air leakage through a gap between the rotating shaft 142 and the inner wall surface (not shown) of the air conditioning case 120 can be prevented. In addition, when the air conditioning device door 140 is rotated, the inner wall surface (not shown) of the air conditioning case 120 is overrotated so that the protrusion 146c can rotate within a set range. A stopper (not shown) may be provided to prevent this.

100: Vehicle air conditioning device 120: Air conditioning case
140: Door for air conditioning device 142: Rotating shaft
144: plate 144a: first plate
144b: second plate 146: rib
146a: 1st rib 146a1: 1-1 rib
146a2: 1st-2nd rib 146a3: 1st-3rd rib
146b: second rib 147: fillet portion
C: Corner area D: Distance between each rib
T1: Thickness of rib T2: Thickness of plate

Claims (11)

A rotating shaft rotatably disposed inside the air conditioning case;
a plate connected to the rotating shaft and rotating with the rotating shaft to open and close a space inside the air conditioning case; and
A rib disposed on the plate along the longitudinal direction of the plate to support the plate; Including,
The ribs are,
a fillet portion disposed in a corner area formed where the plate and the rib meet and connecting the plate and the rib; A door for an air conditioning device including. According to paragraph 1,
A door for an air conditioning device, wherein the fillet portion has a shape where the cross-sectional area increases in the direction from the center toward the end. According to paragraph 1,
The door for an air conditioning device, wherein the fillet portion is formed at an end of the rib on the side where the driving portion is disposed. According to paragraph 1,
A door for an air conditioning device, characterized in that the thickness of the rib is the same as the thickness of the plate. According to paragraph 2,
The rib is formed to protrude outward from the rotation axis,
a first rib protruding to one side between the plates; and
a second rib protruding from the other side between the plates; Including,
A door for an air conditioning device, wherein the fillet portion is disposed on the first rib. According to paragraph 1,
The ribs are provided in plural numbers and spaced apart from the plate,
A door for an air conditioning device, characterized in that the thickness of the ribs and the distance between each rib have the same length. air conditioning case; and
A door for an air conditioning device disposed inside the air conditioning case; Including,
The door for the air conditioning device is,
a rotating shaft rotatably disposed inside the air conditioning case;
a plate connected to the rotating shaft and rotating with the rotating shaft to open and close a space inside the air conditioning case; and
A rib disposed on the plate along the longitudinal direction of the plate to support the plate; Including,
The ribs are,
a fillet portion disposed in a corner area formed where the plate and the rib meet and connecting the plate and the rib; A vehicle air conditioning device comprising a. In clause 7,
An air conditioning device for a vehicle, wherein the fillet portion has a shape in which the cross-sectional area increases in the direction from the center toward the end. In clause 7,
An air conditioning device for a vehicle, wherein the rib has a thickness corresponding to the thickness of the plate. In clause 7,
The rib is formed to protrude outward from the rotation axis,
a first rib protruding to one side between the plates; and
a second rib protruding from the other side between the plates; Including,
The fillet portion is disposed on the first rib. According to clause 10,
The ribs are,
a protrusion protruding outwardly from an end of the second rib along the direction in which the second rib extends; It further includes,
The protrusion is in contact with an inner wall surface of the air conditioning case.

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