Patent Publication Number: US-2022235693-A1

Title: Vehicle heat exchanger

Description:
TECHNICAL FIELD 
     The present invention relates to a heat exchanger for a motor vehicle provided on the front surface of an engine room of the vehicle, and, more particularly, to a heat exchanger for a motor vehicle including a sealing member provided on the circumference of the heat exchanger in order to prevent driving-induced wind from leaking to the outside of the heat exchanger without passing through the heat exchanger. 
     BACKGROUND ART 
     In recent automobile development, methods for improving productivity by reducing the number of parts and processes are being studied. In this recent automobile development, among the methods for improving productivity, a technology of assembling a plurality of parts, respectively, to form an assembly in an assembly line, that is, modularization, is proposed. Among them, representative examples may include a modular front end module by assembling a cooling module including a radiator, a capacitor, and a fan/shroud, and a bumper including a headlamp and a bumper beam. 
       FIG. 1  is an exploded perspective view of a general front end module, and  FIG. 2  is a perspective view of a general front end module. As illustrated, the front end module is modularized including a cooling module M that includes a radiator R, a capacitor C, and a fan shroud F in a cooling module mounting part  11  of the carrier  10  with the carrier  10  as a center thereof, headlamps mounted on both sides of the carrier  10  in a vehicle width direction, and a bumper beam mounted on the front surface of the carrier  10 . 
     In this case, as an air guide  20  is formed in front of the carrier  10 , a larger amount of air flows into the cooling module M by guiding the air flowing into the cooling module M from the outside during high-speed driving of the vehicle, and prevents the air discharged into an engine room through the cooling module M from re-introducing into the cooling module M when the vehicle is driving at low speed, thereby improving the heat dissipation performance of the capacitor C and the radiator R. 
     On the other hand, a gap G is generated in a coupling portion of the capacitor C and the air guide  20  as illustrated, and the driving-induced wind does not pass through the capacitor C and the radiator R, and degrades the heat exchange performance of the cooling module M when bypassed through the gap G. 
     Even in the case of a front end module in which an air guide is installed, since the heat exchange performance degrades when driving-induced wind exits through a circumference of a driving-induced wind inlet surface of the carrier and a circumference of the heat exchanger, it is required to develop a technology for preventing the driving-induced wind from leaking along the circumference of the heat exchanger. 
     DISCLOSURE 
     Technical Problem 
     The present invention provides a heat exchanger for a motor vehicle in which a sealing member is provided along a circumference of the heat exchanger to prevent driving-induced wind from leaking along the circumference of the heat exchanger. 
     In addition, the present invention provides a heat exchanger for a motor vehicle in which a sealing member includes a body made of a resin material, which is easily mounted on the heat exchanger, and a sealing part made of a rubber material that is coupled to the body and extends outward. 
     In particular, the present invention provides a heat exchanger for a motor vehicle in which a sealing part made of a rubber material extends to a front side of the vehicle to prevent the heat exchanger from sliding or separation when the heat exchanger is mounted on a carrier or when the air guide is attached to the heat exchanger. 
     In addition, the present invention provides a heat exchanger for a motor vehicle with improved a fixing force and sealing performance by configuring a sealing part made of a rubber material in multiple rows. 
     Technical Solution 
     According to the present invention, a heat exchanger for a motor vehicle coupled to an inner surface of a heat exchanger mounting part of a carrier or an air guide including a heat exchanger mounting part having an air inlet formed therein includes a sealing member configured to be disposed between a circumference of the heat exchanger and the heat exchanger mounting part to seal a coupling part between the heat exchanger and the heat exchanger mounting part. 
     The sealing member may include: a resin body configured to be coupled to the heat exchanger; and a sealing part made of a rubber material configured to have one end coupled to the body and the other end being in close contact with the heat exchanger mounting part. 
     The sealing part may be formed to allow the other end extending to the heat exchanger mounting part, and to inclinedly extend to a front side of the vehicle. 
     The sealing part may include: a first sealing part configured to have one end fixed to a front side of the vehicle on the body and the other end extending to the heat exchanger mounting part; and a second sealing part configured to have one end fixed to the first sealing part of the body on a rear side of the vehicle at a predetermined distance and the other end extending to the heat exchanger mounting part. 
     The first sealing part may be formed to allow the other end to extend to the heat exchanger mounting part, and to inclinedly extend to a front side of the vehicle, and the second sealing part is formed to allow the other end to extend to the heat exchanger mounting part, and to inclinedly extend to the rear side of the vehicle. 
     The first and second sealing parts may be formed to allow the other end to extend to the heat exchanger mounting part, and to inclinedly extend to the front side of the vehicle. 
     Inclinations of the first and second sealing parts may be 25 to 35° with respect to a horizontal plane. 
     The sealing part may have an annular cross section in a form that a pair of first and second sealing parts is disposed to be spaced apart along front and rear directions of the vehicle, and each one end portion and the other end portion are connected to each other. 
     The body may include a coupling groove recessed to be fitted into the protrusion of the heat exchanger. 
     The coupling groove formed in the body may be fitted into the protrusion of the support provided at a lower end of the heat exchanger. 
     The body may be integrally formed with at least one separation prevention protrusion protruding inward from an inner surface of the coupling groove. 
     The separation prevention protrusion may be formed to protrude from the inner surface of the coupling groove on the front side of the vehicle toward the rear side of the vehicle or from the inner surface of the coupling groove on the rear side of the vehicle toward the front side of the vehicle. 
     The separation prevention protrusion may be inclined in an opposite direction to a coupling direction of the heat exchanger as the separation prevention protrusion goes toward an end portion to facilitate coupling by elastic deformation during fitting of the heat exchanger, and prevent the heat exchanger from separating by an elastic restoring force after the coupling. 
     The heat exchanger may include a support for fixing the heat exchanger to a carrier of the vehicle, the body may be fitted into the support, and the support may be provided on an upper side or a lower side, or both the upper and lower sides of the heat exchanger. 
     Effect of the Invention 
     According to the present invention with the above configuration, a heat exchanger for a motor vehicle is configured to basically prevent driving-induced wind from leaking to an outside of a circumference of the heat exchanger through a sealing member and allow the driving-induced wind to pass through the heat exchanger, thereby improving the heat exchange performance of the heat exchanger. 
     In addition, a sealing member includes a body made of a resin material which is coupled to a heat exchanger, and a rubber sealing part extending outwardly from the body for sealing, thereby improving assembling performance of a sealing member and improving durability through firm fixation. 
     In addition, a sealing part is formed to extend to a front side of a vehicle to prevent deformation when assembling or due to driving-induced wind, thereby improving sealing performance. 
     In addition, a sealing part is configured in a plurality of rows, thereby improving a fixing force of a sealing member and also improving sealing performance. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is an exploded perspective view of a general front end module. 
         FIG. 2  is a schematic partial cross-sectional view of a conventional front end module. 
         FIG. 3  is a perspective view of a front end module including a heat exchanger for a motor vehicle according to an embodiment of the present invention. 
         FIG. 4  is a schematic partial cross-sectional view illustrating a coupled state of the heat exchanger for a motor vehicle and an air guide according to a first embodiment of the present invention. 
         FIG. 5  is a side view of a sealing member of the heat exchanger for a motor vehicle according to the first embodiment of the present invention. 
         FIG. 6  is a schematic partial cross-sectional view illustrating a coupled state of a heat exchanger for a motor vehicle and an air guide according to a second embodiment of the present invention. 
         FIG. 7  is a side view of a sealing member of the heat exchanger for a motor vehicle according to the second embodiment of the present invention. 
         FIG. 8  is a side view of a sealing member of a heat exchanger for a motor vehicle according to a third embodiment of the present invention. 
         FIG. 9  is a schematic partial cross-sectional view illustrating a coupled state of a heat exchanger for motor vehicle and an air guide according to a fourth embodiment of the present invention. 
         FIG. 10  is a side view of a sealing member of the heat exchanger for a motor vehicle according to the fourth embodiment of the present invention. 
         FIG. 11  is a schematic partial cross-sectional view illustrating a coupled state of a heat exchanger for a motor vehicle and an air guide according to a fifth embodiment of the present invention. 
         FIG. 12  is a side view of a sealing member of the heat exchanger for a motor vehicle according to the fifth embodiment of the present invention. 
         FIG. 13  is a coupled cross-sectional view of a support and a sealing member of a heat exchanger for a motor vehicle according to a sixth embodiment of the present invention. 
         FIG. 14  is a coupled cross-sectional view of a support and a sealing member of a heat exchanger for a motor vehicle according to a seventh embodiment of the present invention. 
         FIG. 15  is a coupled cross-sectional view of a support and a sealing member of a heat exchanger for a motor vehicle according to an eighth embodiment of the present invention. 
         FIG. 16  is a transversal cross-sectional view (cross section taken along AA′) of  FIG. 15 . 
         FIG. 17  is a front view of an inside of a sealing member of the heat exchanger for a motor vehicle according to the eighth embodiment of the present invention. 
         FIG. 18  is a schematic partial cross-sectional view (upper side of the heat exchanger) illustrating a coupled state of the heat exchanger for a motor vehicle and the air guide according to the first embodiment of the present invention. 
     
    
    
     DESCRIPTION OF REFERENCE SIGNS 
     FEM: Front end module 
     CR: Carrier 
       100 : Heat exchanger 
       150 ,  150   a,    150   b,    150   c:  Support 
       151 : Fastening part 
       152 : Fastening protrusion 
       155 : Fixed protrusion 
       200 : Air guide 
       300 ,  400 ,  500 ,  600 ,  700 ,  800 : Sealing member 
       310 ,  410 ,  510 ,  610 ,  710 ,  810 : Body 
       320 ,  420 ,  520 ,  620 ,  720 ,  820 : Sealing part 
       421 ,  521 ,  621 : First sealing part 
       422 ,  522 ,  622 : Second sealing part 
       815 : Fixing part 
     BEST MODE 
     Hereinafter, before describing a heat exchanger for a motor vehicle of the present invention as described above, first, a front end module (FEM) that includes the heat exchanger for a motor vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings. 
       FIG. 3  illustrates a perspective view of the front end module (FEM) including a heat exchanger  100  for a motor vehicle according to an embodiment of the present invention. Typically, the front end module (FEM) includes a carrier, a heat exchanger, an air guide, a headlight, a bumper beam, and a bumper, but only the carrier, the heat exchanger and the air guide are illustrated in the drawings for convenience. 
     As illustrated, the front end module FEM includes a carrier CR on which the heat exchanger  100  such as a cooling module is mounted. The carrier CR includes a front panel that has a substantially rectangular frame shape for mounting the heat exchanger, and a support panel that is formed to extend to left and right sides of the front surface panel and is provided with a headlamp mounting part. In addition, an air guide  200  for guiding air and preventing backflow is formed in front of the front surface panel of the carrier CR. 
     The air guide  200  formed in front of the carrier CR guides air flowing in from the front toward the heat exchanger  100 , and prevents air discharged to an engine room through the heat exchanger  100  from back-flowing toward the heat exchanger  100 . In addition, the air guide  200  is configured to be separated and fixed to the carrier CR. 
     The air guide  200  may be configured to include an upper horizontal blade  210  formed in a horizontal direction on an upper side of the heat exchanger  100 , a lower horizontal blade  220  formed in a horizontal direction on a lower side thereof, one vertical blade  230  formed in a vertical direction between one end portion of the upper horizontal blade  210  in a vehicle width direction and one end portion of the lower horizontal blade  220  in the vehicle width direction, and the other vertical blade  240  formed in the vertical direction between the other end portion of the upper horizontal blade  210  in the vehicle width direction and the other end portion of the lower horizontal blade  220  in the vehicle width direction. 
     In this case, a circumference portion of the heat exchanger  100  for a motor vehicle of the present invention is coupled to a heat exchanger mounting part  250  formed an inner surface of the air guide  200  on a rear side. In this case, sealing members  300 ,  400 ,  500 ,  600 , and  700  are further included to seal a gap formed in a coupling portion of the heat exchanger  100  and the air guide  200 . In the case of the front end module (FEM) without the air guide  200 , the heat exchanger  100  may be coupled to the heat exchanger mounting part formed on the front panel of the carrier CR. In the drawing, the sealing members  300 ,  400 ,  500 ,  600 , and  700  are shown to be provided only at a lower end portion of the heat exchanger  100  and an inner surface of a rear side of the lower horizontal blade  220  of the air guide  200 , but may also be provided in a rear coupling portion of the upper horizontal blade  210 , one vertical blade  230 , and the other vertical blade  240 . 
     The sealing members  300 ,  400 ,  500 ,  600 , and  700  of the above configuration seals the gap formed between the circumference portion of the heat exchanger  100  and the heat exchanger mounting part  250  formed on the inner surface of the heat exchanger  100  to prevent driving-induced wind from leaking through the gap without passing through the heat exchanger. 
     Hereinafter, the heat exchanger  100  for a motor vehicle of the present invention including the sealing members  300 ,  400 ,  500 ,  600 , and  700  according to various embodiments as described above will be described in detail with reference to the drawings. 
     First Embodiment (Basic Type) 
       FIG. 4  is a schematic partial cross-sectional view illustrating a coupling structure of a heat exchanger  100  and an air guide  200  according to a first embodiment of the present invention, and  FIG. 5  is a side view of a sealing member  300  according to the first embodiment of the present invention. 
     As illustrated, a support  150  for fixing the heat exchanger  100  to a carrier is provided at a lower end of the heat exchanger  100 . The heat exchanger  100  may be, for example, a radiator for a vehicle. An additional heat exchanger  105  such as a capacitor for a vehicle may be provided in front of the heat exchanger  100  for a motor vehicle. 
     In this case, the heat exchanger  100  according to the first embodiment of the present invention includes a sealing member  300  that prevents driving-induced wind from leaking through a gap  250  formed between a lower end of the heat exchanger  100  and a lower horizontal blade  220  of the air guide  200 . Accordingly, the sealing member  300  may be coupled to the lower end of the heat exchanger  100  and provided between the heat exchanger  100  and the air guide  200 . 
     Specifically, the sealing member  300  may include a body  310  fitted into a protrusion  151  of a support  150  provided at the lower end of the heat exchanger  100 , and a sealing part  320  extending from the body  310  and sealing a coupling part between the heat exchanger  100  of the air guide  200 . The body  310  may be made of a resin material for firmly coupling with the heat exchanger  100 , and the sealing part  320  may be made of a rubber material to firmly seal the gap  250  between the heat exchanger  100  and the air guide  200 . Therefore, the sealing member  300  may be manufactured in a double injection type that is easy to mold different materials. 
     Hereinafter, the detailed shape and configuration of the sealing member  300  according to the above-described first embodiment will be described in detail with reference to the drawings. 
     Referring to  FIG. 5 , the sealing member  300  includes the body  310  fitted into the heat exchanger  100 , and the sealing part  320  for sealing a coupling portion between the heat exchanger  100  and the air guide  200  by being coupled to the lower end of the heat exchanger  100 . 
     The body  310  includes a coupling groove  311  recessed downward from above so that the protrusion  151  of the support  150  is fitted, and a separation prevention protrusion  312 , which prevents separation when fitting into the support  150 , provided on an inner surface of the coupling groove  311 . 
     An upper end portion of the body  310  includes an inclined part  315  formed to be inclined toward the coupling groove  311  as it goes downward to guide the support  150  to the coupling groove  311  when coupled with the support  150 . 
     The separation prevention protrusion  312  may be made of the same or similar rubber material as the sealing part  320 . The separation prevention protrusion  312  may be integrally molded by a double injection or extrusion method when the body  310  is molded. The support  150  may be formed along the vehicle width direction to correspond to the lower end portion of the heat exchanger  100 . A cross section of the support  150  is configured to be ‘U’-shaped, with an opened portion facing downward. The coupling groove  311  may be continuously formed along the vehicle width direction to correspond to the support  150 . The coupling groove  311  is configured to be fitted into the protrusion  151  formed on the front side of the vehicle among the pair of protrusions. 
     A plurality of separation prevention protrusions  312  are disposed to be spaced apart in the vertical direction. The separation prevention protrusion  312  may be formed to protrude inward from the inner surface of the coupling groove  311 . More specifically, the separation prevention protrusion  312  may be formed to protrude from the inner surface of the coupling groove  311  on the front side of the vehicle toward the rear side of the vehicle, and may be formed to protrude from the inner surface of the coupling groove  311  on the rear side of the vehicle toward the front side of the vehicle. The separation prevention protrusions  312  may be continuously formed in the vehicle width direction or may be formed to be spaced apart from each other at regular intervals. In addition, the separation prevention protrusion  312  may inclinedly extend to have a predetermined inclination in the opposite direction to which the body  310  is coupled, that is, downward. This facilitates the fitting of the support  150  through bending deformation when the body  310  is inserted, and after the support  150  is coupled, prevents the support  150  from separating from the body  310  by a friction force and an elastic restoring force. 
     The sealing part  320  is formed to extend downward from the lower end of the body  310  on the front side of the vehicle. The sealing part  320  is formed to have a certain inclination toward the front side when extending downward. That is, the sealing part is formed to extend in a direction opposite to the flow direction of the driving-induced wind, and thus, the sealing part  320  is deformed by the driving-induced wind to prevent leakage from occurring. 
     The inclination of the sealing part  320  may be about 25 to 35° with respect to the horizontal plane. This is because, when the inclination is less than 25°, the sealing performance deteriorates, and when the inclination exceeds 35°, deformation due to driving-induced wind may occur. 
     The coupling structure of the heat exchanger  100  and the sealing part  320  is applicable to the support provided on the upper side of the heat exchanger  100 . Referring to  FIG. 18 , a protrusion  151 ′ of a support  150 ′ protrudes upward, and a sealing member  300 ′ is formed symmetrically with the above-described sealing member  300  to be coupled to the protrusion  151 ′. Accordingly, the sealing members  300  and  300 ′ may be provided on the lower side or the upper side of the heat exchanger  100 , or both the lower side and the upper side thereof. 
     Second Embodiment (Two-Row Sealing Type) 
       FIG. 6  is a schematic partial cross-sectional view illustrating a coupling structure of a heat exchanger  100  and an air guide  200  according to a second embodiment of the present invention, and  FIG. 7  is a side view of a sealing member  400  according to the second embodiment of the present invention. 
     As illustrated, a support  150  for fixing the heat exchanger  100  to a carrier is provided at a lower end of the heat exchanger  100 . The heat exchanger  100  may be, for example, a radiator for a vehicle. An additional heat exchanger  105  such as a capacitor for a vehicle may be provided in front of the heat exchanger  100  for a motor vehicle. 
     In this case, in the heat exchanger  100  according to the second embodiment of the present invention includes a sealing member  400  that prevents driving-induced wind from leaking through a gap  250  formed between a lower end of the heat exchanger  100  and a lower horizontal blade  220  of the air guide  200 . Accordingly, the sealing member  400  may be coupled to the lower end of the heat exchanger  100  and provided between the heat exchanger  100  and the air guide  200 . 
     Specifically, the sealing member  400  may include a body  410  fitted to a protrusion  151  of a support  150  provided at the lower end of the heat exchanger  100 , and a sealing part  420  extending from the body  410  and sealing a coupling part between the heat exchanger  100  and the air guide  200 . The body  410  may be made of a resin material for firmly coupling with the heat exchanger  100 , and the sealing part  420  may be made of a rubber material to firmly seal the gap  250  between the heat exchanger  100  and the air guide  200 . Therefore, the sealing member  300  may be manufactured in a double injection type that is easy to mold different materials. 
     Hereinafter, the detailed shape and configuration of the sealing member  400  according to the above-described first embodiment will be described in detail with reference to the drawings. 
     Referring to  FIG. 7 , the sealing member  400  includes the body  410  fitted to the heat exchanger  100 , and the sealing part  420  for sealing a coupling portion between the heat exchanger  100  and the air guide  200  by being coupled to the lower end of the heat exchanger  100 . 
     The body  410  includes a coupling groove  411  recessed downward from above so that the protrusion  151  of the support  150  is fitted, and a separation prevention protrusion  412 , which prevents separation when fitting into the support  150 , provided on an inner surface of the coupling groove  411 . The separation prevention protrusion  412  may be made of the same or similar rubber material as the sealing part  420 . The separation prevention protrusion  412  may be integrally molded by a double injection or extrusion method when the body  410  is molded. A plurality of separation prevention protrusions  412  are disposed to be spaced apart in the vertical direction, and may basically extend in a lateral direction as an extension direction, but may extend to have a predetermined inclination in the opposite direction to which the body  410  is coupled, that is, downward. 
     The sealing part  420  includes a first sealing part  421  extending downward from the front side of the vehicle on a lower end of the body  410  and a second sealing part  422  extending downward from a center side on the lower end of the body  410 . That is, the sealing part  420  has a two-row structure, so that, when the air guide  200  is coupled to the heat exchanger  100 , assembly performance may be improved, and sealing performance may be improved by minimizing deformation of the sealing part  420  when coupled. 
     In addition, the first sealing part  421  is formed to have a certain inclination toward the front side when extending downward. That is, the sealing part is formed to extend in a direction opposite to the flow direction of the driving-induced wind, and thus, the first sealing part  421  is deformed by the driving-induced wind to prevent leakage from occurring. 
     In addition, the second sealing part  422  is formed to have a certain inclination toward the rear side when extending downward. This improves assembly stability when the air guide  200  is coupled and makes the sealing part  420  form a symmetrical structure to improve fixing stability. 
     The inclination of the first and second sealing parts  421  and  422  may be about 25 to 35° with respect to the horizontal plane. This is because, when the inclination is less than 25°, the sealing performance deteriorates, and when the inclination exceeds 35°, deformation due to driving-induced wind may occur. 
     Third Embodiment (Two-Row Symmetrical Sealing Type) 
     Referring to  FIG. 8 , the sealing member  500  includes the body  510  fitted to the heat exchanger  100 , and the sealing part  520  for sealing a coupling portion between the heat exchanger  100  and the air guide  200  by being coupled to the lower end of the heat exchanger  100 . 
     The body  510  includes a coupling groove  511  recessed downward from above so that the protrusion  151  of the support  150  is fitted, and a separation prevention protrusion  512 , which prevents separation when fitting into the support  150 , provided on an inner surface of the coupling groove  511 . The separation prevention protrusion  512  may be made of the same or similar rubber material as the sealing part  520 . The separation prevention protrusion  512  may be integrally molded by a double injection or extrusion method when the body  510  is molded. 
     The sealing part  520  includes a first sealing part  521  extending downward from an end portion of the front side of the vehicle on a lower end of the body  510  and a second sealing part  522  extending downward from an end portion of the rear side of the vehicle on the lower end of the body  510 . 
     In this case, the first sealing part  521  is formed to have a certain inclination toward the front side when extending downward. That is, the sealing part is formed to extend in a direction opposite to the flow direction of the driving-induced wind, and thus, the first sealing part  521  is deformed by the driving-induced wind to prevent leakage from occurring. 
     In addition, the second sealing part  522  is formed to have a certain inclination toward the rear side when extending downward. This improves assembly stability when the air guide  200  is coupled and makes the sealing part  520  form a symmetrical structure to improve fixing stability. 
     The sealing member  500  of the third embodiment has a more perfect symmetrical structure than the sealing member  400  of the second embodiment described above, and therefore, has the advantage that the sealing member  500  may be more stably fixed between the heat exchanger  100  and the air guide  200 . 
     Fourth Embodiment (Two-Row Leakage Prevention Type) 
       FIG. 9  is a schematic partial cross-sectional view illustrating a coupling structure of a heat exchanger  100  and an air guide  200  according to a fourth embodiment of the present invention, and  FIG. 10  is a side view of a sealing member  600  according to the fourth embodiment of the present invention. 
     As illustrated, a support  150  for fixing the heat exchanger  100  to a carrier is provided at a lower end of the heat exchanger  100 . The heat exchanger  100  may be, for example, a radiator for a vehicle. An additional heat exchanger  105  such as a capacitor for a vehicle may be provided in front of the heat exchanger  100  for a motor vehicle. 
     In this case, the sealing member  600  may include a body  610  fitted to a protrusion  151  of a support  150  provided at the lower end of the heat exchanger  100 , the heat exchanger  100  extending from the body  610 , and a sealing part  620  extending from the body  610  and sealing a coupling part between the heat exchanger  100  and the air guide  200 . 
     Referring to  FIG. 10 , the body  610  includes a coupling groove  611  recessed downward from above so that the protrusion  151  of the support  150  is fitted, and a separation prevention protrusion  612 , which prevents separation when fitting into the support  150 , provided on an inner surface of the coupling groove  611 . The separation prevention protrusion  612  may be made of the same or similar rubber material as the sealing part  620 . The separation prevention protrusion  612  may be integrally molded by a double injection or extrusion method when the body  610  is molded. A plurality of separation prevention protrusions  612  are disposed to be spaced apart in the vertical direction, and may basically extend in a lateral direction as an extension direction, but may extend to have a predetermined inclination in the opposite direction to which the body  610  is coupled, that is, downward. 
     The sealing part  620  includes a first sealing part  621  extending downward from the front side of the vehicle on a lower end of the body  610  and a second sealing part  622  extending downward from a center side on the lower end of the body  610 . That is, the sealing part  620  has a two-row structure, so that, when the air guide  200  is coupled to the heat exchanger  100 , assembly performance may be improved, and sealing performance may be improved by minimizing deformation of the sealing part  620  when coupled. 
     In addition, the first sealing part  621  is formed to have a certain inclination toward the front side when extending downward. That is, the sealing part is formed to extend in a direction opposite to the flow direction of the driving-induced wind, and thus, the first sealing part  621  is deformed by the driving-induced wind to prevent leakage from occurring. 
     In addition, the second sealing part  622  is also formed to have a certain inclination toward the front side when extending downward. Accordingly, as each of the two-row sealing parts is formed to be inclined toward the front side of the vehicle, the first and second sealing parts  621  and  622  are deformed by the driving-induced wind, thereby further preventing leakage from occurring. 
     Fifth Embodiment (Two-Row Contact Area Increasing Type) 
       FIG. 11  is a schematic partial cross-sectional view illustrating a coupling structure of a heat exchanger  100  and an air guide  200  according to a fifth embodiment of the present invention, and  FIG. 12  is a side view of a sealing member  700  according to the fifth embodiment of the present invention. 
     The sealing member  700  according to the fifth embodiment of the present may include a body  710  fitted to a protrusion  151  of a support  150  provided at the lower end of the heat exchanger  100 , and a sealing part  720  extending from the body  710  and sealing a coupling part between the heat exchanger  100  and the air guide  200 . 
     Referring to  FIG. 12 , the body  710  includes a coupling groove  711  recessed downward from above so that the protrusion  151  of the support  150  is fitted, and a separation prevention protrusion  712 , which prevents separation when fitting into the support  150 , provided on an inner surface of the coupling groove  711 . The separation prevention protrusion  712  may be made of the same or similar rubber material as the sealing part  720 . The separation prevention protrusion  712  may be integrally molded by a double injection or extrusion method when the body  710  is molded. A plurality of separation prevention protrusions  712  are disposed to be spaced apart in the vertical direction, and may basically extend in a lateral direction as an extension direction, but may extend to have a predetermined inclination in the opposite direction to which the body  710  is coupled, that is, downward. 
     The sealing part  720  is formed to extend downward on the lower end of the body  710 . In this case, the sealing parts  720  are formed in the form of two rows extending downward from the front and rear sides of the vehicle, and the lower ends thereof are connected to each other. For example, the sealing part  720  may be formed in an annular shape extending along a longitudinal direction. In the case where the sealing part  720  is formed in the annular shape, when the air guide  200  is coupled to the heat exchanger  100 , the friction force is reduced to improve assembly performance, and when coupled, the contact area between the lower end of the sealing part  720  and the air guide  200  may be increased to improve sealing performance. 
     Sixth Embodiment (Support Fastening Part Recessed Type) 
       FIG. 13  is a schematic cross-sectional view illustrating a coupling structure of a support  150   a  and a sealing member  300  of a heat exchanger according to a sixth embodiment of the present invention. 
     Although the configuration of the sealing member  300  according to the first embodiment is described in the drawings, the sealing member of other embodiments is also applicable. 
     The sealing member  300  includes a body  310  and a sealing part  320  as described above, and the body  310  is provided with a separation prevention protrusion  312 . The support  150   a  may be formed along a vehicle width direction to correspond to a lower end portion of the heat exchanger  100 . A coupling groove  311  of the body  310  may be continuously formed along the vehicle width direction to correspond to the support  150   a.    
     A plurality of separation prevention protrusions  312  are disposed to be spaced apart in the vertical direction. The separation prevention protrusion  312  may be formed to protrude inward from an inner surface of the coupling groove  311 . More specifically, the separation prevention protrusion  312  may be formed to protrude from the inner surface of the coupling groove  311  on the front side of the vehicle toward the rear side of the vehicle, and may be formed to protrude from the inner surface of the coupling groove  311  on the rear side of the vehicle toward the front side of the vehicle. The separation prevention protrusions  312  may be continuously formed in the vehicle width direction or may be formed to be spaced apart from each other at regular intervals. In addition, the separation prevention protrusion  312  may inclinedly extend to have a predetermined inclination in the opposite direction to which the body  310  is coupled, that is, downward. This facilitates the fitting of the support  150   a  through bending deformation when the body  310  is inserted, and after the support  150   a  is coupled, prevents the support  150   a  from separating from the body  310  by a friction force and an elastic restoring force. 
     In this case, the separation prevention protrusion  312  is configured to further include a fastening part  151  recessed inward from the outer surface of the support  150   a  so that the end portion of the separation prevention protrusion  312  is inserted after the body  310  is inserted on the support  150   a.  The fastening part  151  may be formed in the form of a groove or may be formed in the form of a hole. In addition, the separation prevention protrusion  312  may be formed in the form of a slot along the vehicle width direction. The fastening part  151  may be formed to be recessed from an outer surface of the front side of the vehicle toward the rear side of the vehicle or from an outer surface of the vehicle toward the front side of the vehicle. In addition, the fastening part  151  may be formed on both the outer surfaces of the front and rear sides of the vehicle. As described above, through the configuration of the fastening part  151 , the end portion of the separation prevention protrusion  312  may be configured to be inserted to further improve an adhesion force of the support  150   a  and the sealing member  300 . 
     Seventh Embodiment (Support Fastening Protrusion Type) 
       FIG. 14  is a schematic cross-sectional view illustrating a coupling structure of a support  150   b  and a sealing member  300  of a heat exchanger according to a seventh embodiment of the present invention. 
     Although the configuration of the sealing member  300  according to the first embodiment is described in the drawings, the sealing member of other embodiments is also applicable. 
     The sealing member  300  includes a body  310  and a sealing part  320  as described above, and the body  310  is provided with a separation prevention protrusion  312 . The support  150   b  may be formed along a vehicle width direction to correspond to a lower end portion of the heat exchanger  100 . A coupling groove  311  of the body  310  may be continuously formed along the vehicle width direction to correspond to the support  150   b.    
     A plurality of separation prevention protrusions  312  are disposed to be spaced apart in the vertical direction. The separation prevention protrusion  312  may be formed to protrude inward from an inner surface of the coupling groove  311 . More specifically, the separation prevention protrusion  312  may be formed to protrude from the inner surface of the coupling groove  311  on the front side of the vehicle toward the rear side of the vehicle, and may be formed to protrude from the inner surface of the coupling groove  311  on the rear side of the vehicle toward the front side of the vehicle. The separation prevention protrusions  312  may be continuously formed in the vehicle width direction or may be formed to be spaced apart from each other at regular intervals. In addition, the separation prevention protrusion  312  may inclinedly extend to have a predetermined inclination in the opposite direction to which the body  310  is coupled, that is, downward. This facilitates the fitting of the support  150   b  through bending deformation when the body  310  is inserted, and after the support  150   b  is coupled, prevents the support  150   b  from separating from the body  310  by a friction force and an elastic restoring force. 
     In this case, the separation prevention protrusion  312  is configured to further include a fastening protrusion  152  protruding outward from the outer surface of the body  310  so that the end portion of the separation prevention protrusion  312  is engaged after the body  310  is inserted on the support  150   b.  As long as the fastening protrusion  152  has a configuration that may be engaged with the end portion of the separation prevention protrusion  312 , a shape of the fastening protrusion  152  is not limited, and the fastening protrusion  152  may be a hook-type protrusion as an example. The fastening protrusion  152  may be formed to protruding from an outer surface of the front side of the vehicle toward the front side of the vehicle or from an outer surface of the rear side of the vehicle toward the rear side of the vehicle. In addition, the fastening protrusion  151  may be formed on both the outer surfaces of the front and rear sides of the vehicle. As described above, through the configuration of the fastening protrusion  152 , the end portion of the separation prevention protrusion  312  may be configured to be engaged to further improve an adhesion force of the support  150   b  and the sealing member  300 . 
     Eighth Embodiment (Support and Body Fixing Type) 
       FIG. 15  is a schematic cross-sectional view illustrating a coupling structure of a support  150   c  and a sealing member  800  of a heat exchanger according to an eighth embodiment of the present invention. 
     The sealing member  800  includes a body  810  and a sealing part  820  as described above, and the body  810  is provided with a separation prevention protrusion  812 . The support  150   c  may be formed along a vehicle width direction to correspond to a lower end portion of the heat exchanger  100 . A coupling groove  811  of the body  810  may be continuously formed along the vehicle width direction to correspond to the support  150   c.    
     A plurality of separation prevention protrusions  812  are disposed to be spaced apart in the vertical direction. The separation prevention protrusion  812  may be formed to protrude inward from an inner surface of the coupling groove  811 . More specifically, the separation prevention protrusion  812  may be formed to protrude from the inner surface of the coupling groove  811  on the front side of the vehicle toward the rear side of the vehicle, and may be formed to protrude from the inner surface of the coupling groove  811  on the rear side of the vehicle toward the front side of the vehicle. The separation prevention protrusions  812  may be continuously formed in the vehicle width direction or may be formed to be spaced apart from each other at regular intervals. In addition, the separation prevention protrusion  812  may inclinedly extend to have a predetermined inclination in the opposite direction to which the body  810  is coupled, that is, downward. This facilitates the fitting of the support  150   c  through bending deformation when the body  810  is inserted, and after the support  150   c  is coupled, prevents the support  150   c  from separating from the body  810  by a friction force and an elastic restoring force. 
     In this case, after the body  810  is inserted on the support  150   c,  the separation prevention protrusion  812  is configured to further include a fixed protrusion  155  protruding outward from the outer surface of the body  810  to be fitted into a fixing part  815  formed on the body  810 . A shape of the fixed protrusion  155  is not limited as long as it is a configuration that may be fitted into the fixing part  815 . The fastening protrusion  155  may be formed to protrude from an outer surface of the front side of the vehicle toward the rear side of the vehicle or from an outer surface of the rear side of the vehicle toward the rear side of the vehicle. In addition, the fastening protrusion  155  may be formed on both the outer surfaces of the front and rear sides of the vehicle. The fixing part  815  is formed on the inner surface of the body  810 , and is configured in the form of a groove or a hole so that the fixed protrusion  155  may be fitted when the sealing member  800  is coupled to the support  150   c.  As described above, through the configuration of the fixing protrusion  155  and the fixing part  815 , the support  150   c  is configured so that it may be engaged with the body  810  of the sealing member  800 , thereby further improving an adhesion force of the support  150   c  and the sealing member  300 . 
     The present invention is not to be construed as being limited to the above-mentioned exemplary embodiment. The present invention may be applied to various fields and may be variously modified by those skilled in the art without departing from the scope of the present invention claimed in the claims. Therefore, it is obvious to those skilled in the art that these alterations and modifications fall in the scope of the present invention.