Knob holder for air conditioning units that allows easy replacement of damaged knob assemblies due to impact

Abstract

The present invention relates to a knob holder for an air conditioning system that facilitates the easy replacement of a knob assembly damaged by impact. The knob holder to which the adjustment knob is coupled comprises a hollow lower body, a hollow upper body spaced apart from the upper end of the lower body, and a breaking means connecting the upper surface of the opposing lower body and the lower surface of the upper body. The breaking means is composed of a plurality of ribs inclined in one direction. When a load of 30 kgf or more and 40 kgf or less is applied to the adjustment knob by the ribs inclined in one direction, the central part of the ribs breaks simultaneously with the upper body moving toward the lower body, causing the adjustment knob to enter the interior of a mounting hole provided in the front panel. Consequently, in the event of a vehicle accident, secondary accidents caused by a person inside the vehicle colliding with the adjustment knob protruding from the front panel can be prevented to the maximum extent. Furthermore, it complies with the European Union's vehicle interior equipment standards, allowing for expectations of export potential. Additionally, unlike conventional methods, a circular breaking groove is formed on a PCB board, and the breaking groove provided on the PCB board Since the knob holder to which the adjustment knob is attached does not move upon breaking, even if the knob holder enters the mounting hole of the front panel due to carelessness during the manufacturing process or transportation, only the knob holder can be replaced, thereby reducing after-sales service costs; by forming a breaking groove on the upper surface of the rib, the central part of the rib can be easily broken by the breaking groove; and by forming a concave groove in the central part on the upper and lower surfaces of the rib, the connection strength between the lower body and the upper body can be increased by using the rib equipped with the groove, and the central part of the rib constituting the knob holder can be easily broken by impact applied to the adjustment knob; and the breaking means comprises a first rib body protruding vertically with a thickness of 1 / 2 the thickness of the upper surface of the lower body, and a movable hole part formed on the upper part of the first rib body such that a fixed hole is provided on the upper part and a movable hole is provided on the lower part by a catch part formed protruding on the inner surface, andBy comprising a second rib body that protrudes vertically with a thickness of half the thickness of the lower surface of the upper body corresponding to the first rib body, and a movable fixing bar formed protruding from the lower outer surface of the second rib body to penetrate the movable hole, the upper body moves up and down depending on the direction in which the movable fixing bar moves; thus, even if the upper body moves to the lower body due to the process of assembling the knob assembly or driver negligence, the moved upper body can be moved back up with a simple operation, thereby reducing the maintenance costs of the knob assembly.

Description

Technology Field

[0001] The present invention relates to a knob holder for an air conditioning system that facilitates the easy replacement of a knob assembly damaged by impact. More specifically, the knob holder to which an adjustment knob is coupled comprises a hollow lower body, a hollow upper body spaced apart from the upper end of the lower body, and a breaking means connecting the upper surface of the opposing lower body and the lower surface of the upper body. The breaking means is composed of a plurality of ribs inclined in one direction. When a load of 30 kgf or more and 40 kgf or less is applied to the adjustment knob by the ribs inclined in one direction, the central part of the rib forming the breaking means breaks, and simultaneously, the upper body moves toward the lower body, causing the adjustment knob to be drawn into the interior of a mounting hole provided in the front panel. Consequently, in the event of a vehicle accident, secondary accidents caused by a person inside the vehicle colliding with an adjustment knob protruding from the front panel can be prevented to the maximum extent. Furthermore, it complies with the European Union's vehicle interior equipment standards, allowing for expectations of export potential. Additionally, unlike conventional methods that form a circular breaking groove on a PCB board The present invention relates to a knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, wherein the knob holder to which the adjustment knob is attached is not moved as the breaking groove provided on the PCB board breaks, so that even if the knob holder enters the mounting hole of the front panel due to carelessness during the manufacturing process or transportation, only the knob holder can be replaced, thereby reducing after-sales service costs; by forming a breaking groove on the upper surface of the rib, the central part of the rib can be easily broken by the breaking groove; and by forming a concave groove in the central part on the upper and lower surfaces of the rib, the connection strength between the lower body and the upper body can be increased by using the rib equipped with the groove, and the central part of the rib constituting the knob holder can be easily broken by impact applied to the adjustment knob. Background Technology

[0003] Generally, an air conditioning system is a device that allows the temperature and humidity of a vehicle to be controlled by turning an air conditioner installed inside the vehicle on and off.

[0004] A control device connected to the air conditioner was installed inside the vehicle to control the air conditioner using the said air conditioner.

[0005] FIGS. 10 and FIGS. 11 illustrate a control device capable of controlling a conventional air conditioner.

[0006] The above control device is composed of a front panel (100) having a mounting hole (101) as shown in FIG. 10, a rear panel (110) coupled to the front panel (100), a PCB board (120) mounted between the front panel (100) and the rear panel (110), and a knob assembly rotatably installed in the mounting hole (101).

[0007] The above knob assembly is mounted so as to protrude from the front of the front panel (100), and the knob assembly consists of a knob holder (140) which is rotatably coupled to the mounting hole (101) and an adjustment knob (141) which is coupled to the front end of the knob holder (140).

[0008] A switch module (130) electrically connected to a knob holder (140) is installed on the PCB board (120), and a plurality of broken grooves (121) formed in an annular shape spaced apart from the switch module (130) are formed on the PCB board (120).

[0009] At this time, it is noted that a rotor device connecting the knob holder (140) and the switch module (130) is provided, although not shown in the drawing.

[0010] Since the above-mentioned breaking groove (121) is formed in an annular shape on the PCB board (120), when an impact is applied to the adjustment knob (141), the breaking groove (121) breaks, and as shown in Fig. 11 (b), the PCB board (120) with the knob holder (140) mounted on it moves backward, so the adjustment knob (141) protruding from the front of the front panel (100) is pushed into the interior of the mounting hole (101), thereby preventing passengers in the vehicle from being injured by hitting the adjustment knob (141) due to a vehicle accident.

[0011] In particular, interior components installed in passenger and commercial vehicles sold in the European Union (EU), such as dashboard parts, door panels, and gear levers, are required to have rounded corners and restricted protrusions to prevent injury to occupants in the event of an accident.

[0012] The regulations for protrusions stipulate that 1) the height of the protrusion must not exceed 9.5 mm, and 2) if the height of the protrusion exceeds 9.5 mm, it must break under a load of 30 kgf or more and 40 kgf or less and sink to less than 9.5 mm.

[0013] In addition, it is stipulated that all parts protruding more than 9.5 mm in a position where a person could hit their head inside the vehicle in the event of a vehicle accident must fracture as shown above and sink in to less than 9.5 mm.

[0014] In order to comply with such European Union regulations, a plurality of annularly formed fracture grooves (121) are formed on the PCB substrate (120).

[0015] Therefore, when an impact is applied to the adjustment knob (121) due to a vehicle accident, the PCB board (120) on which the switch module (130) is installed is broken in the fracture groove (121), and thus the adjustment knob (141) constituting the knob assembly is introduced into the mounting hole (101) provided in the front panel (100), thereby allowing compliance with European Union regulations.

[0016] However, in the past, a fracture groove (121) was formed in the PCB board (120), and as the PCB board (120) was fractured by the fracture groove (121), the knob holder (140) to which the adjustment knob (141) was attached moved backward. Consequently, when the adjustment knob (141) was pushed into the mounting hole (101) provided in the front panel (100) due to an impact applied to the adjustment knob (141) during the process of manufacturing the control device or transporting the manufactured control device, a problem arose in which the knob holder (140) and the PCB board (9120) to which the knob holder (140) is attached had to be replaced simultaneously.

[0017] As such, since the knob holder (140) and the PCB board (120) must be replaced simultaneously, not only is the replacement of the knob assembly difficult, but the problem of increased after-sales service costs has also arisen. The problem to be solved

[0019] Accordingly, the present invention, designed to solve the above-mentioned problems, comprises a knob holder to which an adjustment knob is coupled, which is formed in a hollow shape, a hollow upper body spaced apart from the upper end of the lower body, and a breaking means connecting the upper surface of the opposing lower body and the lower surface of the upper body. The breaking means is composed of a plurality of ribs inclined in one direction. Consequently, when a load of 30 kgf or more and 40 kgf or less is applied to the adjustment knob by the ribs inclined in one direction, the central part of the ribs breaks simultaneously with the upper body moving toward the lower body, causing the adjustment knob to be drawn into the interior of the mounting hole provided in the front panel. This allows for maximum prevention of secondary accidents caused by a person inside the vehicle colliding with the adjustment knob protruding from the front panel in the event of a vehicle accident. Furthermore, it complies with the European Union's vehicle interior equipment standards, allowing for expectations of export potential. Additionally, unlike conventional methods where a circular breaking groove is formed on a PCB board and the knob holder to which the adjustment knob is coupled moves as the breaking groove provided on the PCB board breaks, the manufacturing process Even if the knob holder enters the mounting hole of the front panel due to carelessness during processing or transportation, only the knob holder can be replaced, thereby reducing after-sales service costs. Furthermore, by forming a breaking groove on the upper surface of the rib, the central part of the rib can be easily broken by the breaking groove. Additionally, by forming a concave groove in the central part on the upper and lower surfaces of the rib, the connection strength between the lower body and the upper body can be increased by using the rib equipped with the groove, and the central part of the rib constituting the knob holder can be easily broken by impact applied to the adjustment knob. The breaking means comprises a first rib body protruding vertically with a thickness of 1 / 2 the thickness of the upper surface of the lower body, a movable hole part formed on the upper part of the first rib body such that a fixed hole is provided on the upper part and a movable hole on the lower part by a catch part formed protruding on the inner surface, and a second rib body protruding vertically with a thickness of 1 / 2 the thickness of the lower surface of the upper body corresponding to the first rib body. Rib body and,The purpose is to provide a knob holder for an air conditioning unit that facilitates easy replacement of a knob assembly damaged by impact, configured such that a movable fixing bar is formed protruding from the lower outer surface of the second rib body so as to penetrate the movable hole portion. Since the upper body moves up and down according to the direction in which the movable fixing bar moves, even if the upper body moves to the lower body due to the process of assembling the knob assembly or driver negligence, the moved upper body can be moved back up with simple operation, thereby reducing the maintenance costs of the knob assembly. means of solving the problem

[0021] The present invention for achieving the above objective is,

[0022] A PCB board on which a switch module is installed;

[0023] A knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, comprising: a knob holder having an adjustment knob coupled to the upper part and a lower part installed on a PCB board to accommodate a switch module, and electrically connected to said switch module;

[0024] The above knob holder is,

[0025] A lower body formed in a hollow shape;

[0026] An upper body formed as a hollow spaced apart from the upper end of a lower body;

[0027] It is characterized by comprising a breaking means connecting the upper surface of the facing lower body and the lower surface of the upper body, wherein, upon impact applied to the adjusting knob, the breaking means breaks and simultaneously the upper body moves toward the lower body, so that the adjusting knob, which is mounted protruding from the front panel, is introduced into the mounting hole provided in the front panel. Effects of the invention

[0029] According to the present invention, the knob holder to which the adjustment knob is coupled comprises a hollow lower body, a hollow upper body spaced apart from the upper end of the lower body, and a plurality of ribs formed to be inclined in one direction and connecting the upper surface of the lower body and the lower surface of the upper body. When a load of 30 kgf or more and 40 kgf or less is applied to the adjustment knob by the ribs inclined in one direction, the central part of the ribs breaks and the upper body moves toward the lower body, causing the adjustment knob to be drawn into the interior of the mounting hole provided in the front panel. Therefore, in the event of a vehicle accident, the effect of preventing secondary accidents caused by a person inside the vehicle colliding with the adjustment knob protruding from the front panel can be expected to the maximum extent.

[0030] In addition, it meets the European Union's vehicle interior installation standard that if the height of the protruding mold exceeds 9.5mm, it must break under a load of 30kgf or more and 40kgf or less and sink to less than 9.5mm, thereby maximizing export effectiveness.

[0031] In addition, since the knob holder with the adjustment knob attached is not moved when the groove provided on the PCB board is broken as in the conventional method by forming a circular groove on the PCB board, even if the knob holder is introduced into the front panel due to carelessness during the manufacturing process or transportation, only the knob holder can be replaced, so the effect of reducing after-sales service costs can be expected.

[0032] In addition, by forming a fracture groove on the upper surface of the rib, the central part of the rib can be easily fractured by the fracture groove.

[0033] In addition, by forming a concave groove in the center of the upper and lower surfaces of the rib, the bonding strength between the lower body and the upper body can be increased by using the rib equipped with the groove, and the effect of facilitating the breakage of the central part of the rib constituting the knob holder by the impact applied to the adjustment knob can be expected.

[0034] In addition, the breaking means comprises a first rib body protruding vertically with a thickness of half the thickness of the upper surface of the lower body, a moving hole portion formed on the upper part of the first rib body such that a fixed hole is provided on the upper part and a moving hole on the lower part by means of a locking portion formed protruding on the inner surface, a second rib body protruding vertically with a thickness of half the thickness of the lower surface of the upper body corresponding to the first rib body, and a moving fixing bar protruding from the lower outer surface of the second rib body to penetrate the moving hole portion. Since the upper body moves up and down according to the direction in which the moving fixing bar moves, even if the upper body moves to the lower body due to the process of assembling the knob assembly or due to the driver's inattention, the moved upper body can be moved back up with a simple operation, thereby allowing the effect of reducing the maintenance cost of the knob assembly to be expected. Brief explanation of the drawing

[0036] FIG. 1 is a drawing illustrating a first embodiment of a knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 2 is a drawing illustrating the operating state of a first embodiment of a knob holder for an air conditioning device, which facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 3 is a drawing showing a fracture groove formed in the rib of a first embodiment of a knob holder for an air conditioning device, which facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 4 is an operating state diagram illustrating the operating state of a rib having a breaking groove of a first embodiment of a knob holder for an air conditioning device, which facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 5 is a drawing showing a groove formed in the rib of a first embodiment of a knob holder for an air conditioning device, which facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 6 is an operating state diagram illustrating that a rib is broken by a groove of a first embodiment of a knob holder for an air conditioning device, which facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 7 is an exploded perspective view of a second embodiment of a knob holder for an air conditioning device in which the knob assembly damaged by impact according to the present invention is easily replaced. FIG. 8 is a combined perspective view illustrating a second embodiment of a knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 9 is an operating state diagram of a second embodiment of a knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact according to the present invention. FIG. 10 is a partially enlarged perspective view showing a conventional knob holder in a combined state. FIG. 11 is a simplified diagram of the operating state illustrating the operation of a conventional knob holder. Specific details for implementing the invention

[0037] Hereinafter, a preferred embodiment of the present invention will be described using the attached FIGS. 1 to 9.

[0038] First, prior to describing the present invention, the same reference numerals are used for components identical to those in the prior art, so the description of duplicate reference numerals will be omitted.

[0039] The present invention is formed with a breaking means (40) in a knob holder (10) that is electrically connected to a switch module (130) while being coupled with an adjustment knob (141).

[0040] FIGS. 1 to 6 illustrate a first embodiment of the breaking means (40), and FIGS. 7 to 9 illustrate a second embodiment of the breaking means (40) of the present invention. The first embodiment and the second embodiment will be described respectively.

[0042] ◈ First Embodiment ◈

[0043] According to the drawings above, the first embodiment of the present invention is,

[0044] A PCB board (120) on which a switch module (130) is installed;

[0045] A knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, comprising: a knob holder (10) having an adjustment knob (141) coupled to the upper part and a lower part installed on a PCB board (120) to accommodate a switch module (130), and electrically connected to the switch module (130).

[0046] The above knob holder (10) is,

[0047] A lower body (20) formed in a hollow shape;

[0048] An upper body (30) formed in a hollow shape spaced apart from the upper end of the lower body (20);

[0049] It is characterized by comprising a breaking means (40) connecting the upper surface (21) of the lower body (20) facing the lower body (30) and the lower surface (31) of the upper body (30), such that when an impact is applied to the adjusting knob (141), the breaking means (40) breaks and simultaneously the upper body (30) moves toward the lower body (40), and the adjusting knob (141), which is mounted protrudingly on the front panel (100), is configured to enter the mounting hole (101) provided in the front panel (100).

[0050] And the above-mentioned breaking means (40) is,

[0051] It is characterized by being composed of a plurality of ribs (50) formed at an angle in one direction so as to connect the upper surface (21) of the lower body (20) facing the lower body (30) and the lower surface (31) of the upper body (30).

[0053] The present invention forms a breaking means (40) on a knob holder (10) to which an adjustment knob (141) is coupled at the top.

[0054] By forming the above-mentioned breaking means (40) in the knob holder (10), when an impact (130 kgf ~ 140 kgf) is applied to the adjusting knob (141), the breaking means (40) breaks and the adjusting knob (141) is introduced into the mounting hole (101) provided in the front panel (100) as shown in FIG. 2 (a) and (b).

[0055] The above knob holder (10) is composed of a lower body (20) formed in a hollow shape as shown in FIG. 1, an upper body (20) formed in a hollow shape spaced apart from the lower body (20), and a breaking means (40) connecting the lower body (20) and the upper body (30).

[0056] A coupling part (32) is formed on the outer surface of the upper body (30) to be coupled to the inner surface of the adjustment knob (141).

[0057] The above-mentioned breaking means (40) has a rib (50) formed to be inclined in one direction as shown in (a) and (b) of FIG. 1.

[0058] By forming the rib (50), which is the breaking means (40), in a slanted direction, the central part of the rib (50) is broken by the impact applied to the adjustment knob (141), and at the same time, the upper body (30) moves toward the lower body (20). This minimizes interference with the movement of the upper body (30) caused by the broken rib.

[0059] By forming the rib (50), which is the breaking means (40), in a direction inclined as in (a) and (b) of FIG. 1, when an impact is applied to the adjustment knob (141) which is coupled to protrude into the mounting hole (101) of the front panel (100) as in (a) of FIG. 2, the central part of the rib (50) is easily broken.

[0060] Because the central part of the above rib (50) is broken by an impact applied to the adjustment knob (141), the upper body (30) moves in the direction of the lower body (20), and thus the adjustment knob (141) coupled to the upper body (30) so as to protrude from the front panel (100) is introduced into the interior of the mounting hole (101) provided in the front panel (100).

[0062] Meanwhile, FIGS. 3 and 4 show a triangular fracture groove (60) formed in the central part of the upper surface of a rib (50) that is formed at an angle in one direction.

[0063] The above-mentioned fracture groove (60) is formed in the central part of the upper surface of the rib (50) in the drawing, but although not shown in the drawing, the above-mentioned fracture groove (60) is formed in the central part of the lower surface of the rib (50).

[0064] Alternatively, it is disclosed that it can be formed in the upper surface and lower surface central portion of the above rib (50).

[0065] By forming a triangular fracture groove (60) in the middle part of the rib (50), the width of the middle part of the rib (50) becomes smaller compared to the width of the upper and lower parts of the rib (50), and as a result, when an impact is applied to the adjustment knob (141), the middle part of the rib (50) is fractured around the fracture groove (60).

[0066] Because the middle part of the rib (50) is broken by the above-mentioned breaking groove (60), the upper body (30) moves to the lower body (20), and thus the adjustment knob (141) coupled to the upper body (30) is introduced into the mounting hole (101) provided in the front panel (100) in the direction in which the upper body (30) moves.

[0068] Meanwhile, FIGS. 5 and 6 show that a groove (61) is formed on the upper and lower surfaces of the rib (50).

[0069] The above groove (61) is formed such that the width of the central part gradually decreases from the top and bottom of the rib (50).

[0070] In this way, by forming a groove (61) on the upper and lower surfaces of the rib (60), the width of the central part of the rib (60) gradually decreases compared to the width of the upper and lower parts of the rib (60). Consequently, when an impact is applied to the adjustment knob (141), the rib (50) breaks around the central part of the groove (61), and the adjustment knob (141), which is formed to protrude from the upper surface of the front panel (100), is introduced into the interior of the mounting hole (101) provided in the front panel (100).

[0071] In addition, by forming a groove (61) on the upper and lower surfaces of the rib (50) such that the width of the central part of the rib (50) gradually decreases compared to the width of the upper and lower parts of the rib (50), the bonding force between the lower body (20) and the upper body (30) constituting the knob holder (10) can be increased by using the rib (50) equipped with the groove (61).

[0073] ◈ Second Embodiment ◈

[0074] FIGS. 7 to 9 illustrate a second embodiment of the present invention, and the same reference numerals are used for the same components as in the first embodiment, so the description of duplicate reference numerals is omitted.

[0075] According to the drawing above, another embodiment of the breaking means (40) of the present invention is,

[0076] A plurality of first rib bodies (70) formed vertically on the upper surface (21) of the lower body (20);

[0077] A movable hole (71) formed to penetrate in the longitudinal direction in the upper central part of the first rib body (70);

[0078] A plurality of second rib bodies (80) formed vertically on the lower surface (31) of the upper body (30) corresponding to the first rib body (70);

[0079] It is composed of a movable fixing bar (81) formed to protrude from the lower outer surface of the second rib body (70) so as to penetrate the movable hole portion (71), and

[0080] A hemispherical locking part (72) is formed protrudingly so that a connecting hole (73) is provided on the inner upper side of the moving hole part (71),

[0081] A fixing hole (74) in which a movable fixing bar (81) is fixed through the upper inner side of the movable hole part (71) centered on the catch part (72), and

[0082] It is characterized by having a moving hole (75) connected to the fixed hole (74) and the connecting hole (73) configured to be provided in the longitudinal direction at the inner lower part of the moving hole section (71).

[0084] Another embodiment of the breaking means (40) of the present invention is,

[0085] A plurality of first rib bodies (70) are vertically formed on the upper surface (21) of the lower body (20) constituting the knob holder (10), and a plurality of second rib bodies (80) are formed on the lower surface (31) of the upper body (30) corresponding to the first rib bodies (70).

[0086] And a moving hole portion (71) is formed in the longitudinal direction on the outer upper part of the first rib body (70), and a moving fixing bar (81) that penetrates the moving hole portion (71) is formed in the central part of the lower outer surface of the second rib body (80).

[0087] The first rib body (70) is formed to protrude vertically so as to have a thickness half the size of the upper surface (21) of the lower body (20), and

[0088] The second rib body (80), formed on the lower surface (31) of the upper body (30) corresponding to the first rib body (70), is formed to protrude vertically so as to have a thickness of 1 / 2 compared to the thickness of the lower surface (31) of the upper body (30).

[0089] When the lower body (20) and the upper body (30) are combined using the first rib body (70) and the second rib body (80), the inner surface of the first rib body (70) and the outer surface of the second rib body (80) are in close contact with each other, and at the same time, the first rib body (70) and the second rib body (80) are prevented from protruding to the outer and inner surfaces of the knob holder (10).

[0090] A movable hole portion (71) is formed in the longitudinal direction on the upper part of the first rib body (70), and a movable fixing bar (81) that penetrates the movable hole portion (71) is formed to protrude from the central part of the lower outer surface of the second rib body (80).

[0091] A hemispherical locking part (72) is formed protruding from the inner upper portion of the above-mentioned moving hole part (71), so that a connecting hole (73) is provided between the locking parts (72).

[0092] By forming the above-mentioned locking part (72) on the inner upper side of the moving hole part (71), a fixing hole (74) is provided in the inner upper side of the moving hole part (71) by means of the locking part (72) to be fixed through the moving fixing bar (81), and a moving hole (75) is provided in the longitudinal direction in the inner lower side of the moving hole part (71).

[0094] The operating state of the second embodiment of the present invention, configured in this manner, is described as follows.

[0095] First, Figures 6 (a) and (b) illustrate the initial state of the lower body (20) and the upper body (30).

[0096] The initial state of the lower body (20) and the upper body (30) is such that, as shown in Fig. 6 (b), a movable fixing bar (81) formed to protrude from the lower outer circumference of the second rib body (80) is coupled to pass through a fixing hole (74) provided on the inner upper part of the movable hole portion (71).

[0097] As the above-mentioned movable fixing bar (81) is coupled to pass through the fixing hole (74), the lower part of the movable fixing bar (81) is caught on the upper part of the catch (72) provided on the upper inner side of the movable hole part (71), so that the adjustment knob (141) coupled to the knob holder (10) is mounted so as to protrude into the mounting hole (101) provided in the front panel (100) as shown in FIG. 7 (a).

[0098] In this state, when an impact (130 kgf to 140 kgf) is applied to the adjustment knob (141) as in (a) of FIG. 7, the movable fixing bar (81) constituting the breaking means (40) moves to the connecting hole (73) by causing the locking part (72) provided on the inner side of the moving hole part (71) to spread to both sides of the first rib body (70) by the impact applied to the adjustment knob (141), and the movable fixing bar (81) moved to the connecting hole (73) moves to the inner bottom of the moving hole (75) by the impact applied to the adjustment knob (141).

[0099] Because the moving hole (75) moves to the inner bottom due to the impact applied to the adjustment knob (141) by the above-mentioned moving fixing bar (81), the upper body (30) moves to the lower body (20) as shown in (b) of FIG. 7, so that the adjustment knob (141) protrudingly mounted in the mounting hole (101) of the front panel (100) can be introduced into the interior of the mounting hole (101).

[0100] Accordingly, when the first rib body (70) and the second rib body (80) are combined so that the movable fixing bar (81) is positioned over the upper part of the catch (72), the adjustment knob (141) coupled to the knob holder (10) as in FIG. 7 (a) is coupled so as to protrude into the mounting hole (101) provided in the front panel (100).

[0101] When the above-mentioned movable fixing bar (81) moves to the lower inner side of the moving hole part (71) through the connecting hole (73) provided in the catch part (72) as in Fig. 7 (b), the adjusting knob (141) coupled to the knob holder (10) is introduced into the interior of the mounting hole (101) provided in the front panel (100). Therefore, even if the upper body (30) moves to the lower body (20) due to the process of assembling the knob assembly or driver's inattention, the upper body (30) can be moved again so that the movable fixing bar (81) is caught on the upper part of the catch part (72), thus allowing for the expectation of reducing the maintenance cost of the knob holder (10). Explanation of the symbols

[0103] 10: Knob holder, 20: Lower body, 21: Top surface, 30: Top body, 31: Bottom surface, 32: Joint, 40: Breaking means, 50: Rib, 60: Fracture groove, 61: Recess, 70: 1st rib body, 71: Moving hole part, 72: Locking part, 73: Connecting hole, 74: Fixed hole, 75: Movable hole, 80: Second rib body, 81: Moving fixed bar, 100: Front panel, 101: Mounting hole, 110: Rear panel, 120: PCB board, 121: Breaking groove section, 130: Switch module, 140: Knob holder, 141: Adjustment knob,

Claims

Claim 1 A knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, comprising: a PCB board (120) on which a switch module (130) is installed; and a knob holder (10) having an adjustment knob (141) coupled to the upper part and installed on the PCB board (120) to accommodate the switch module (130) at the lower part, and electrically connected to the switch module (130); wherein the knob holder (10) comprises: a lower body (20) formed in a hollow shape; and an upper body (30) formed in a hollow shape spaced apart from the upper end of the lower body (20); A knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, characterized in that it comprises a breaking means (40) connecting the upper surface (21) of a lower body (20) facing the lower body (30) and the lower surface (31) of the upper body (30); wherein, upon impact applied to the adjustment knob (141), the breaking means (40) breaks and the upper body (30) moves to the lower body (40) simultaneously, and the adjustment knob (141) mounted protruding from the front panel (100) is introduced into the mounting hole (101) provided in the front panel (100); and the breaking means (40) is composed of a plurality of ribs (50) formed inclined in one direction to connect the upper surface (21) of the lower body (20) facing the lower body (30) and the lower surface (31) of the upper body (30). Claim 2 delete Claim 3 A knob holder for an air conditioning device that facilitates easy replacement of a broken knob assembly, characterized in that, in claim 1, a triangular fracture groove (60) is further formed in the central part of the upper surface of the rib (50). Claim 4 A knob holder for an air conditioning device that facilitates easy replacement of a damaged knob assembly, characterized in that, in claim 1, a groove (61) with a central portion concave is further formed on the upper and lower surfaces of the rib (50). Claim 5 A knob holder for an air conditioning device that facilitates easy replacement of a knob assembly damaged by impact, comprising: a PCB board (120) on which a switch module (130) is installed; and a knob holder (10) having an adjustment knob (141) coupled to the upper part and installed on the PCB board (120) to accommodate the switch module (130) at the lower part, and electrically connected to the switch module (130); wherein the knob holder (10) comprises: a lower body (20) formed in a hollow shape; and an upper body (30) formed in a hollow shape spaced apart from the upper end of the lower body (20); It is composed of a breaking means (40) connecting the upper surface (21) of the lower body (20) facing the lower body (30) and the lower surface (31) of the upper body (30); and is configured such that, upon impact applied to the adjustment knob (141), the breaking means (40) breaks and simultaneously the upper body (30) moves toward the lower body (40), and the adjustment knob (141), which is mounted protrudingly on the front panel (100), is introduced into the mounting hole (101) provided in the front panel (100); and the breaking means (40) comprises a plurality of first rib bodies (70) formed vertically on the upper surface (21) of the lower body (20); and a moving hole portion (71) formed to penetrate in the longitudinal direction in the upper central part of the first rib body (70); A knob holder for an air conditioning device that facilitates easy replacement of a damaged knob assembly, comprising: a plurality of second rib bodies (80) formed vertically on the lower surface (31) of an upper body (30) corresponding to a first rib body (70); and a movable fixing bar (81) formed protruding from the lower outer surface of the second rib body (70) so as to penetrate the movable hole portion (71); wherein a hemispherical locking portion (72) is formed protrudingly so as to provide a connecting hole (73) on the inner upper side of the movable hole portion (71), and a fixing hole (74) through which the movable fixing bar (81) is fixed on the inner upper side of the movable hole portion (71) centered on the locking portion (72), and a movable hole (75) connected to the fixing hole (74) and the connecting hole (73) is provided longitudinally on the inner lower side of the movable hole portion (71).

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