JP6106459B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner.

  In general, a vehicle air conditioner is mounted on the front side in a vehicle, and is configured to dehumidify and cool air blown by a blower fan using an evaporator. When the vehicle air conditioner is an air mix system, part or all of the air that has passed through the evaporator is sent to the heater core via the air mix door and heated, and then mixed with the remaining air to reach a predetermined temperature. The conditioned air is generated, and the generated conditioned air is supplied to each outlet in the vehicle.

Said evaporator and heater core are accommodated in the case which forms the external shape of the air conditioning apparatus for vehicles. The evaporator is connected to a supply pipe that supplies a refrigerant of a refrigeration cycle that is driven by an engine and a discharge pipe that discharges the refrigerant that has been heated and heated by the evaporator. The heater core is connected to a supply pipe that supplies hot water obtained by cooling the engine and a discharge pipe that discharges cooling water that has undergone heat exchange at the heater core and has become low temperature .

  As described above, the piping connected to the evaporator and the heater core is drawn out of the case to the outside of the case. Outside the case, these pipes are fixed to the outer wall surface of the case using a bracket. For example, the fixing of piping shown in Patent Document 1 is such that the piping is sandwiched between a fixing bracket and an attaching / detaching bracket formed integrally with the case, and the attaching / detaching bracket is screwed to the fixing bracket.

JP 2003-136937 A

  However, in the conventional vehicle air conditioner, the fixing of the pipe to the case is performed by screwing the detachable bracket to the fixing bracket with a screw such as a tapping screw, which increases the number of parts and increases the number of assembly steps and increases the cost. There is a drawback of becoming. In order to eliminate such a defect, for example, a configuration in which a claw portion is provided on the detachable bracket and the detachable bracket and the fixed bracket are fixed by snap fitting is conceivable. However, in the snap fit, the fastening force is weak compared to screwing, and it is difficult to firmly fix the pipe. In particular, when the pipe is thermally contracted, a stress due to the thermal contraction of the pipe acts on the bracket, so that it is necessary to realize stronger fixation.

  The present invention has been made in view of the above-described problems. In an air conditioner for a vehicle, the number of parts associated with fixing a pipe to a case is reduced, the assembly process is simplified, and the pipe is firmly fixed. The purpose is to make it possible.

  The present invention adopts the following configuration as means for solving the above-described problems.

  1st invention is piping connected to the said heat exchanger with respect to the outer side of the case which encloses a heat exchanger by pinching with the 1st bracket piece and 2nd bracket piece which can be attached or detached with respect to each other. An air conditioner for a vehicle for fixing the first bracket piece and the second bracket piece, and a fixing portion having a crushing portion which is deformed when the pipe is held, and the first bracket piece. A plurality of claw portions provided on both sides of the fixing portion with respect to one of the bracket piece and the second bracket piece, and the fixing portion with respect to the other of the first bracket piece and the second bracket piece. One of the plurality of locking portions that are provided on both sides sandwiching the claw and the claw portion is locked, and the first bracket piece and the second bracket piece, the axial direction of the pipe with respect to the claw portion Installed separately Employing a use claw portion, a structure that comprises a said first bracket piece and the reinforcing locking portion of the reinforcing claw portion is engaged with is provided on the other of the second bracket piece.

  According to a second invention, in the first invention, the first bracket piece and the second bracket piece are sandwiched between the two pipes, and the first pipe is sandwiched between the two pipes. A configuration is adopted in which the bracket piece and the second bracket piece are in contact with each other, and the reinforcing claw portion and the reinforcing locking portion are disposed at a location between the two pipes.

  According to a third invention, in the first or second invention, an insertion protrusion provided on one of the first bracket piece and the second bracket piece, the first bracket piece, and the second bracket piece, The other is provided with an insertion hole into which the insertion protrusion is inserted.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the fixing unit includes a first fixing unit and a second fixing unit that are recessed to fix the two parallel pipes, and the first bracket piece. And the second bracket piece, a first contact surface formed on the outer side in the arrangement direction of the first fixing portion and the first fixing portion of the first fixing portion, and the arrangement of the second fixing portion. A second contact surface formed on the outer side in the direction, and a third contact surface formed between the first fixed portion and the second fixed portion, the first bracket piece and the second A first claw portion is formed as the claw portion on one of the first contact surfaces with the bracket piece, and the other first contact surface of the first bracket piece and the second bracket piece is on the first contact surface. A first locking portion for locking the first claw portion is formed as the locking portion, and the first bracket piece and the second block are formed. A second claw portion is formed as the claw portion on one of the second contact surfaces with the ket piece, and the other second contact surface of the first bracket piece and the second bracket piece is on the second contact surface. A second locking portion for locking the second claw portion is formed as the locking portion, and the third contact surface of one of the first bracket piece and the second bracket piece is A third claw portion is formed as a claw portion, and the third claw portion is locked as the locking portion on the other third contact surface of the first bracket piece and the second bracket piece. A third locking portion is formed, and the third abutting surface of one of the first bracket piece and the second bracket piece is spaced apart from the third claw portion in the axial direction of the pipe. The reinforcing claw portion is formed, and the third contact surface of the other of the first bracket piece and the second bracket piece is formed. Adopts the configuration that the reinforcing locking portion spaced in the axial direction of the pipe relative to the third engagement portion is formed.

  In a fifth aspect based on the fourth aspect, the insertion protrusion is provided on one of the first contact surface and the second contact surface of the first bracket piece and the second bracket piece. The insertion hole is configured to be provided in the first contact surface and the second contact surface of the other of the first bracket piece and the second bracket piece.

  In a sixth aspect based on the fifth aspect, the first bracket and the second bracket are provided on the vehicle front side of the case, and the return portion of the third claw portion and the reinforcing claw portion is a vehicle. A configuration is adopted in which it is formed so as to protrude forward.

  7th invention employ | adopts the structure that the front-end | tip of the said insertion protrusion protrudes rather than the return part provided in the front-end | tip of the said nail | claw part in any one of the said 3rd-6th invention.

  According to an eighth invention, in any one of the first to seventh inventions, the plurality of claw portions are configured such that the return portions provided at the tips of the claw portions are arranged in different directions. .

  According to a ninth invention, in any one of the first to eighth inventions, the flange in which the first bracket piece and the second bracket piece abut against the partition wall separating the compartment and the engine compartment from the compartment side. A configuration is adopted in which the reinforcing claw portion is disposed closer to the vehicle compartment side than the flange portion.

  According to a tenth aspect, in the ninth aspect, the first bracket piece and the second bracket piece are arranged with respect to each other around the boundary portion. A configuration is provided in which a stopper that restricts movement is provided.

  According to the present invention, in addition to the claw portion and the locking portion for snap-fitting the first bracket piece and the second bracket piece, the reinforcing bracket for snap-fitting the first bracket piece and the second bracket piece. A claw portion and a reinforcing locking portion are provided. For this reason, the first bracket piece and the second bracket piece are firmly fastened, and thereby the pipe is firmly fixed, as compared with the case where the reinforcing portion and the reinforcing locking portion are not provided. be able to. According to the present invention, since the pipe can be fixed without screwing, the assembly process can be simplified, and the pipe can be firmly fixed.

  Moreover, according to this invention, the nail | claw part for reinforcement is spaced apart and arrange | positioned with respect to the nail | claw part in the axial direction of piping. Therefore, when a load is applied to the first bracket piece or the second bracket piece from the axial direction of the pipe, the reinforcing claw portion serves as a support, and the first bracket piece and the second bracket piece are centered on the boundary portion. As a result, it can be prevented from rotating so as to break.

It is a perspective view of the air harmony device for vehicles concerning one embodiment of the present invention. (A) is the perspective view which expanded and showed the (A) part of FIG. 1, (b) is the perspective view which looked at the (A) part of FIG. 1 from the direction different from (a), ( c) is a top view of the portion (A). It is a side view when the fixed bracket is viewed from the direction in which the detachable bracket is mounted. (A) is a perspective view of the detachable bracket, (b) is a front view of the detachable bracket, and (c) is a right side view of the detachable bracket.

  Hereinafter, an embodiment of a vehicle air conditioner according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is appropriately changed in order to make each member a recognizable size.

  FIG. 1 is a perspective view of a vehicle air conditioner S according to an embodiment of the present invention. The vehicle air conditioner S has a case 1 that forms the outer shape of the vehicle air conditioner S. And the bracket 2 which makes the characteristic of this invention is provided in the location enclosed with the dashed-dotted line (A) of this case 1 outside.

  Before explaining the bracket 2, the accommodation contents of the case 1 will be explained. In the case 1, although not shown, a mechanism for generating and guiding conditioned air such as an evaporator, an air mix door, a heater core, and a damper is accommodated. Has been. That is, the case 1 includes an evaporator and a heater core that function as a heat exchanger.

  In such a vehicle air conditioner S, cold air is generated in the case 1 by dehumidifying and cooling the air by the evaporator. Then, a part or all of the generated cold air is sent to the heater core through the air mix door and heated, and then mixed with the remaining cold air to obtain conditioned air at a predetermined temperature. Next, the generated conditioned air is guided through each damper and the like, and is discharged from each outlet provided in the case 1.

  A supply pipe P1 and a discharge pipe P2 are connected to the heater core. In this heater core, hot water obtained by cooling the engine provided in the engine room is introduced into the case 1 through the supply pipe P1, and the heater core exchanges heat with the air flow in the case. The cooling water which has become is configured so as to be returned to the engine outside the case 1 via the discharge pipe P2.

  The supply pipe P1 and the discharge pipe P2 are outside the case 1 and at the bracket 2 at the front side of the case 1 (refer to “front” of the arrow in FIG. 1. 3 and FIG. 4C, which will be described later, extend in parallel to the engine room side. In the vehicle air conditioner S of the present embodiment, the supply pipe P1 and the discharge pipe P2 extending in parallel are fixed so as to be bundled by the bracket 2. In addition, in the case 1, an expansion valve for supplying refrigerant of the refrigeration cycle to the evaporator in the case and discharging the refrigerant that has been heat-exchanged by the evaporator to the engine side outside the case again expands the refrigerant. It is arranged via.

  Hereinafter, the bracket 2 will be described. The bracket 2 includes a fixed bracket 10 and a detachable bracket 20. One of the fixed bracket 10 and the detachable bracket 20 corresponds to the first bracket piece of the present invention, and the other corresponds to the second bracket piece of the present invention. The fixing bracket 10 and the detachable bracket 20 are detachable. The supply pipe P1 and the discharge pipe P2 are sandwiched and fixed to the outside of the case 1. Before describing the detailed structure of the fixed bracket 10 and the detachable bracket 20, the overall shape of the bracket 2 will be described.

  FIG. 2A is an enlarged perspective view of the portion (A) of FIG. The bracket 2 has a track shape as shown in the figure, and a supply pipe P1 is disposed below and a discharge pipe P2 is disposed above. Of the supply pipe P1 and the discharge pipe P2, the supply pipe P1 positioned below is located on the right side of the discharge pipe P2 positioned above. Therefore, when the bracket 2 is viewed from the front, the long axis is left It is in a slanted state. 2B is a perspective view when the bracket 2 is viewed from different directions, and FIG. 2C is a top view including the bracket 2. These figures will be used later as needed.

  The bracket 2 is divided into two along a line passing through the center position of the supply pipe P1 and the discharge pipe P2 (hereinafter, a dividing line L), and the right part shown in FIG. The left part is the detachable bracket 20. In the example shown in the drawing, the dividing line L is formed in a step shape because of the ease of forming the bracket 2 and the like (see FIG. 2A). Of course, the dividing line L may be a straight line that matches the major axis of the bracket 2.

  In the following description, of the boundary portion between the fixed bracket 10 and the detachable bracket 20 formed along the dividing line L, the portion below the position of the supply pipe P1 is referred to as “first boundary portion 2a” and discharged. A portion above the position of the pipe P2 is referred to as a “second boundary portion 2b” and a portion between the supply pipe P1 and the discharge pipe P2 is referred to as a “third boundary portion 2c”. The first boundary portion 2a is formed by contacting the first contact surface 10a provided on the fixed bracket 10 and the first contact surface 20a provided on the detachable bracket 20. Further, the second boundary portion 2 b is formed by abutting the second abutting surface 10 b provided on the fixed bracket 10 and the second abutting surface 20 b provided on the detachable bracket 20. Further, the third boundary portion 2 c is formed by abutting a third abutting surface 10 c provided on the fixed bracket 10 and a third abutting surface 20 c provided on the detachable bracket 20. The first contact surface 10a, the second contact surface 10b, and the third contact surface 10c are shown in FIG. 3 to be described later, and the first contact surface 20a, the second contact surface 20b, and the third contact surface. 10c is shown in FIG. 4 to be described later.

  Now, the fixed bracket 10 is formed integrally with the case 1. FIG. 3 is a side view of the fixed bracket 10 when viewed from the direction of the detachable bracket 20.

  As shown in FIG. 3, a first latching portion, which will be described later, is inserted into the first abutment surface 10 a of the fixed bracket 10 to be latched by a first pawl portion 21 (claw portion) provided on the detachable bracket 20. 11 (locking portion), a second locking portion 12 (locking) in which a second claw portion 22 (claw portion), which will be described later, provided on the detachable bracket 20 is inserted and locked to the second contact surface 10b. Part) and the third abutment surface 10c are inserted into and locked with a later-described third claw part 23 (claw part) and fourth claw part 24 (reinforcing claw part) provided on the detachable bracket 20, respectively. A third locking part 13 (locking part) and a fourth locking part 14 (reinforcing locking part) are provided.

  The third locking portion 13 and the fourth locking portion 14 are arranged in the axial direction of the supply pipe P1 and the discharge pipe P2 at the position of the bracket 2 in accordance with the third claw portion 23 and the fourth claw portion 24 of the detachable bracket 20. Are spaced apart from each other.

  Further, a first insertion protrusion 25 (described later) provided on the detachable bracket 20 is inserted into the fixed bracket 10 at a predetermined distance from the left side of the first locking portion 11 (see FIG. 3). A first insertion hole 15 is provided, and a second insertion protrusion 26 (described later) provided on the detachable bracket 20 is inserted to the left of the second locking portion 12 while maintaining a predetermined distance. An insertion hole 16 is provided.

  Further, the fixing bracket 10 is provided with a first fixing portion 17 into which a semicircular portion of the cross section of the supply pipe P1 is inserted between the first contact surface 10a and the third contact surface 10c. Between the 2nd contact surface 10b and the 3rd contact surface 10c, the 2nd fixing | fixed part 18 in which the semicircle part of the cross section of the discharge piping P2 is inserted is provided. Furthermore, the fixed bracket 10 can sufficiently withstand the stress when the detachable bracket 20 is mounted, and the supply pipe P1 and the discharge pipe P2 sandwiched by the detachable bracket 20 can be stably and firmly held. Reinforcing ribs 19 are integrally provided.

  Next, the detachable bracket 20 will be described. 4A and 4B are views showing the detachable bracket 20, wherein FIG. 4A is a perspective view, FIG. 4B is a front view, and FIG. 4C is a side view. The first abutment surface 20a of the detachable bracket 20 is integrally provided so that the first claw portion 21 protrudes at a position facing the first locking portion 11 provided on the fixed bracket 10. The second claw portion 22 is integrally provided on the second abutting surface 20b so that the second claw portion 22 protrudes at a position facing the second locking portion 12 provided on the fixed bracket 10. Then, the third claw portion 23 and the fourth claw portion 24 are disposed on the third contact surface 20c at positions facing the third locking portion 13 and the fourth locking portion 14 provided on the fixed bracket 10, respectively. Are integrally provided so as to protrude from each other.

  The third claw portion 23 and the fourth claw portion 24 are provided in the axial direction of the supply pipe P1 and the discharge pipe P2 at the position of the bracket 2. The third claw portion 23 and the fourth claw portion 24 are provided on the third abutting surface 20c that abuts the fixed bracket 10 between the supply pipe P1 and the discharge pipe P2. That is, the 3rd nail | claw part 23 and the 4th nail | claw part 24 are provided between the supply piping P1 and the discharge piping P2.

  The first claw portion 21, the second claw portion 22, the third claw portion 23, and the fourth claw portion 24 have respective first locking portions 11 and second locking portions provided at the distal end portions of the fixing bracket 10. 12, a return portion 21a, a return portion 22a, a return portion 23a, and a return portion 24a that are locked when inserted into the third locking portion 13 and the fourth locking portion 14, respectively, are integrally formed.

  The return portion 21a provided in the first claw portion 21 and the return portion 22a provided in the second claw portion 22 are formed so that the removal methods are opposite to each other. That is, the first claw portion 21 is formed so that the locked state is released when it moves downward in FIG. 4C, and the second claw portion 22 is formed so that the locked state is released when it moves upward. Yes. Thus, the return portion 21a of the first claw portion 21 and the return portion 22a of the second claw portion 22 are directed in different directions. Moreover, the return part 23a and the return part 24a provided in the 3rd nail | claw part 23 and the 4th nail | claw part 24 are formed so that a latching state may be removed when moving in the same direction. That is, in FIG.4 (c), when the 3rd nail | claw part 23 and the 4th nail | claw part 24 move to the left direction, it forms so that a latching state may be removed.

  When the first claw portion 21, the second claw portion 22, the third claw portion 23, and the fourth claw portion 24 are cut in a direction orthogonal to the protruding direction, the cross-sectional shape is a rectangular shape, and the first claw portion 21, the 2nd nail | claw part 22, the 3rd nail | claw part 23, and the 4th nail | claw part 24 are each comprised so that it may bend only to the short side direction of the rectangle. And the 1st nail | claw part 21 and the 2nd nail | claw part 22 are provided in the attachment / detachment bracket 20 so that the bracket 2 may bend in the direction of the dividing line L mentioned above (up-down direction in FIG.4 (c)). Further, the detachable bracket 20 has the third claw portion 23 and the fourth claw portion 24 in a direction perpendicular to the bending direction of the first claw portion 21 and the second claw portion 22 (left and right direction in FIG. 4C). Is provided. In addition, although the 3rd nail | claw part 23 and the 4th nail | claw part 24 were made into the direction orthogonal to the bending direction of the 1st nail | claw part 21 and the 2nd claw part 22, you may make it cross | intersect at an angle other than a right angle.

  Further, on the detachable bracket 20, a first insertion protrusion inserted into a first insertion hole 15 provided in the fixed bracket 10 is adjacent to the right side of the first claw portion 21 (see FIG. 4C). 25 and a second insertion protrusion 26 to be inserted into the second insertion hole 16 provided in the fixed bracket 10 is provided to the right of the second claw portion 22. The tip positions of the first insertion protrusion 25 and the second insertion protrusion 26 are formed so as to slightly protrude from the return portions 21 a and the return portions 22 a of the first claw portions 21 and the second claw portions 22.

  Further, the detachable bracket 20 has a crushing rib 27a (crushing portion) between which the semicircular portion of the cross section of the supply pipe P1 is inserted between the first contact surface 20a and the third contact surface 20c. The fixing portion 27 is provided, and a second crushing rib 28a (a crushing portion) into which a semicircular portion of the cross section of the discharge pipe P2 is inserted is provided between the second contact surface 20b and the third contact surface 20c. Two fixing portions 28 are provided. The crushing ribs may be provided on the first fixing part 17 and the second fixing part 18 provided on the fixing bracket 10.

  Furthermore, as shown in FIG. 2 (b), the detachable bracket 20 can sufficiently withstand the stress at the time of mounting to the fixed bracket 10, and the supply pipe P 1 sandwiched between the fixed bracket 10 and Reinforcing ribs 29a are provided so that the discharge pipe P2 can be held stably and firmly.

  Further, the detachable bracket 20 is provided with a contact rib 29b (stopper) disposed closer to the vehicle compartment side than the fourth claw portion 24. For example, when the fixed bracket 10 and the detachable bracket 20 are pushed from the engine room side, the abutment rib 29b has a boundary portion between the fixed bracket 10 and the detachable bracket 20 (that is, the first boundary portion 2a and the second boundary portion). The movement of the detachable bracket 20 is restricted so as not to rotate about the 2b and the third boundary 2c). Even if the detachable bracket 20 is pushed in by the contact rib 29b, the bracket 2 can be prevented from cracking at the boundary.

  The fixed bracket 10 and the detachable bracket 20 are provided with a flange portion 10d and a flange portion 20d. The flange portion 10d and the flange portion 20d are integrated by fixing the detachable bracket 20 to the fixing bracket 10, and are formed into a partition wall K (see FIG. 2C) that separates the vehicle compartment from the engine room. Contact from the passenger compartment side. In addition, the 4th nail | claw part 24 mentioned above is arrange | positioned rather than these flange parts 10d and the flange parts 20d at the vehicle interior side.

  In order to fix the supply pipe P1 and the discharge pipe P2 to the case 1 using the bracket 2 having the above structure, the supply pipe P1 is inserted into the first fixing portion 17 of the fixing bracket 10 and discharged to the second fixing portion 18. Pipe P2 is inserted. Next, when the first insertion protrusion 25 of the detachable bracket 20 is moved to the fixed bracket 10 side so as to face the first insertion hole 15 of the fixed bracket 10 and the second insertion protrusion 26 faces the second insertion hole 16, respectively. The detachable bracket 20 is moved toward the fixed bracket 10 while being guided and positioned by the first insertion protrusion 25 and the second insertion protrusion 26.

  By the above movement, the first claw portion 21 of the detachable bracket 20 is locked to the first locking portion 11 of the fixed bracket 10, the second claw portion 22 is locked to the second locking portion 12, and the third claw portion 23 is locked to the third locking portion. The fourth claw portion 24 is inserted into the portion 13 and the fourth locking portion 14 respectively. When further moved, the supply pipe P1 and the discharge pipe P2 abut against the crushing ribs 27a and crushing ribs 28a provided in the first fixing part 27 and the second fixing part 28. The rib 27a and the crushing rib 28a are deformed, the first claw portion 21 is the first locking portion 11, the second claw portion 22 is the second locking portion 12, and the third claw portion 23 is the third locking portion. 13, the fourth claw portion 24 is locked to the fourth locking portion 14.

  Thus, the supply pipe P1 is firmly sandwiched between the first fixing part 17 of the fixing bracket 10 and the first fixing part 27 of the detachable bracket 20, and the discharge pipe P2 is attached to and detached from the second fixing part 18 of the fixing bracket 10. The bracket 20 is firmly held between the second fixing portion 28 and fixed to the case 1. When it is necessary to remove the detachable bracket 20 attached to the fixed bracket 10, the first locking portion 11, the second locking portion 12, the third locking portion 13 and the fourth locking portion 14 Since the window which exposes the front-end | tip of the 1 nail | claw part 21, the 2nd nail | claw part 22, the 3rd claw part 23, and the 4th nail | claw part 24 is each provided, the 1st claw part 21, the 2nd nail | claw part 22, 3rd The claw part 23 and the fourth claw part 24 can be easily removed.

  According to the vehicle air conditioner S of the present embodiment as described above, the first claw portion 21, the second claw portion 22, the third claw portion 23 for snap fitting the fixed bracket 10 and the detachable bracket 20, In addition to the first locking part 11, the second locking part 12 and the third locking part 13, a fourth claw part 24 and a fourth locking part 14 for snap fitting the fixing bracket 10 and the detachable bracket 20. It has. For this reason, compared with the case where these 4th nail | claw parts 24 and the 4th latching | locking part 14 are not provided, the fixing bracket 10 and the attachment-and-detachment bracket 20 are fastened firmly, and, thereby, supply piping P1 and discharge piping P2 Can be firmly fixed. According to the vehicle air conditioner S of this embodiment, since the supply pipe P1 and the discharge pipe P2 can be fixed without screwing, the assembly process can be simplified, and further the supply The pipe P1 and the discharge pipe P2 can be firmly fixed.

  Further, according to the vehicle air conditioner S of the present embodiment, the fourth claw portion 24 is arranged away from the third claw portion 23 in the axial direction of the supply pipe P1 and the discharge pipe P2. Therefore, when a load is applied to the detachable bracket 20 from the axial direction of the supply pipe P1 and the discharge pipe P2, the fourth claw portion 24 serves as a support, and the fixed bracket 10 and the detachable bracket 20 are centered on the boundary portion. It can prevent turning so that it may break.

  Further, in the vehicle air conditioner S of the present embodiment, the third claw portion 23 and the fourth claw portion 24 are provided between the supply pipe P1 and the discharge pipe P2. Between the supply pipe P1 and the discharge pipe P2, for example, it is a place where the stress becomes the largest due to the influence of thermal expansion or the like between the supply pipe P1 and the discharge pipe P2. In the present embodiment, since the two claw portions (the third claw portion 23 and the fourth claw portion 24) are provided at the location, the fixing bracket 10 and the detachable bracket 20 can be stably fastened. It becomes.

  Moreover, in the vehicle air conditioner S of this embodiment, the 1st insertion protrusion 25 and the 2nd insertion protrusion 26 are provided. If the fixed bracket 10 and the detachable bracket 20 are rotated so as to be cracked around the boundary portion, the first insertion protrusion 25 and the second insertion protrusion 26 are supported, so that the bracket 2 is more likely to crack. It can be surely prevented.

  Further, in the vehicle air conditioner S of the present embodiment, the tip positions of the first insertion protrusion 25 and the second insertion protrusion 26 are the first claw portions 21 and the return portions 21a of the second claw portions 22 and It is formed so as to protrude slightly from the return portion 22a. For this reason, when the detachable bracket 20 is attached to the fixed bracket 10, the first insertion is performed before the first claw portion 21 and the second claw portion 22 are locked to the first locking portion 11 and the second locking portion 12. The tips of the protrusion 25 and the second insertion protrusion 26 are inserted into the first insertion hole 15 and the second insertion hole 16. For this reason, the first claw portion 21 and the second claw portion 22 can be easily positioned with respect to the first locking portion 11 and the second locking portion 12.

  Further, in the vehicle air conditioner S of the present embodiment, the return portion 21a of the first claw portion 21 and the return portion 22a of the second claw portion 22 are directed in different directions. Therefore, even when the positional relationship between the fixed bracket 10 and the detachable bracket 20 is shifted in the direction in which the first claw portion 21 is detached, the second claw portion 22 is not detached, and the position between the fixed bracket 10 and the detachable bracket 20 is not changed. Even when the relationship is shifted in the direction in which the second claw portion 22 is released, the first claw portion 21 is not released. As a result, it is possible to prevent the fixed bracket 10 and the detachable bracket 20 from being detached.

  Moreover, in the vehicle air conditioner S of this embodiment, the 4th nail | claw part 24 is arrange | positioned rather than these flange parts 10d and the flange parts 20d at the vehicle interior side. For this reason, even if it is a case where the flange part 10d and the flange part 20d are pushed from the engine room side, the 4th nail | claw part 24 becomes a support and it can prevent more reliably that the bracket 2 is cracked.

  Further, in the vehicle air conditioner S of the present embodiment, a contact rib 29b disposed on the vehicle compartment side with respect to the fourth claw portion 24 is provided. For this reason, if the fixed bracket 10 and the detachable bracket 20 are rotated so as to be cracked around the boundary portion, the contact rib 29b serves as a support, so that the bracket 2 can be more reliably prevented from cracking. it can.

  Further, in the vehicle air conditioner S of the present embodiment, the fixed bracket 10 and the detachable bracket 20 are provided on the vehicle front side of the case 1, and the return portion 23 a and the fourth claw portion 24 of the third claw portion 23. The return portion 24a is formed so as to protrude forward of the vehicle. For this reason, the detachable bracket 20 can be easily removed by pressing the third claw portion 23 and the fourth claw portion 24 from the opposite side of the case 1.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the above-described example, the first claw portion 21, the second claw portion 22, the third claw portion 23, the fourth claw portion 24, the first insertion protrusion 25, and the second insertion protrusion 26 are provided on the detachable bracket 20. The first locking portion 11, the second locking portion 12, the third locking portion 13, the fourth locking portion 14, the first insertion hole 15, and the second insertion hole 16 are provided in the fixed bracket 10. The first claw portion 21, the second claw portion 22, the third claw portion 23, the fourth claw portion 24, the first insertion protrusion 25, and the second insertion protrusion 26 are provided on the fixed bracket 10, and the first locking portion 11, the second locking part 12, the third locking part 13, the fourth locking part 14, the first insertion hole 15 and the second insertion hole 16 may be provided in the detachable bracket 20, but the above-mentioned Thus, each 1st nail | claw part 21, the 2nd nail | claw part 22, the 3rd claw part 23, the 4th nail | claw part 24, and the 1st insertion protrusion 2 And it is thus the time provided in the second inserting projection 26 a detachable bracket 20, is characterized that the molding is facilitated.

  In the above-described example, the third claw portion 23 and the fourth claw portion 24 are provided on the third contact surface 10c. However, the first contact surface 10a, the second contact surface 10b, or both are provided for reinforcement. A claw portion may be provided, and the fourth claw portion 24 may not be provided on the third contact surface 10c. However, as described above, when the fourth claw portion 24 is provided on the third contact surface 10c, the clamping force with respect to the supply pipe P1 and the discharge pipe P2 can be strengthened.

  Furthermore, in the above example, the heat exchange medium pipe fixed by the bracket 2 is the supply pipe P1 and the discharge pipe P2 for cooling water supplied to the heater core or discharged from the heater core. It may be a supply pipe and a discharge pipe for the refrigerant.

  DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Bracket, 2a ... 1st boundary part, 2b ... 2nd boundary part, 2c ... 3rd boundary part, 10 ... Fixed bracket, 10a ... 1st contact surface, 10b 2nd contact surface, 10c ... 3rd contact surface, 10d ... Flange, 11 ... 1st locking part (locking part), 12 ... 2nd locking part (locking part) , 13... 3rd locking part (locking part), 14... 4th locking part (reinforcing locking part), 15... 1st insertion hole, 16. First fixing portion, 18 ... second fixing portion, 19 ... reinforcing rib, 20 ... detachable bracket, 20a ... first contact surface, 20b ... second contact surface, 20c ... third contact Surface, 20d …… Flange part, 21 …… First claw part (claw part), 21a …… Return part, 22 …… Second claw part (claw part), 22a …… Return part, 23 …… Third nail Part (claw part), 23a …… Return , 24... 4th claw part (reinforcing claw part), 24a... Return part, 25... 1st insertion protrusion, 26... 2nd insertion protrusion, 27. ... crushing rib (crushing part), 28 ... second fixing part, 28a ... crushing rib (crushing part), 29a ... reinforcing rib, 29b ... abutment rib (stopper), L ... dividing line, P1 ... ... Supply piping, P2 ... Discharge piping, P2 ... Supply piping, K ... Partition, S ... Air conditioner for vehicles

Claims (11)

The vehicle air that fixes the pipe connected to the heat exchanger to the outside of the case containing the heat exchanger by sandwiching the first bracket piece and the second bracket piece that can be attached to and detached from each other. A harmony device,
A fixing portion provided on the first bracket piece and the second bracket piece and having a crushing portion that is deformed when the pipe is held;
A plurality of claw portions provided on both sides of the fixed portion with respect to one of the first bracket piece and the second bracket piece;
A plurality of locking portions which are provided on both sides of the fixed portion with respect to the other of the first bracket piece and the second bracket piece and to which the claw portion is locked;
A reinforcing claw portion installed on one of the first bracket piece and the second bracket piece, spaced apart from the claw portion in the axial direction of the pipe,
A reinforcing locking portion provided on the other of the first bracket piece and the second bracket piece and to which the reinforcing claw portion is locked ;
An insertion protrusion provided on one of the first bracket piece and the second bracket piece;
An insertion hole provided in the other of the first bracket piece and the second bracket piece and into which the insertion protrusion is inserted ;
As the fixing part, it has a first fixing part and a second fixing part that are recessed to fix two parallel pipes,
The first bracket piece and the second bracket piece include a first contact surface formed on an outer side in the arrangement direction of the first fixing portion and the second fixing portion of the first fixing portion, and the second A second contact surface formed on the outer side of the fixed portion in the arrangement direction, and a third contact surface formed between the first fixed portion and the second fixed portion,
A first claw portion is formed as the claw portion on the first contact surface of one of the first bracket piece and the second bracket piece, and the other of the first bracket piece and the second bracket piece. The first abutment surface is formed with a first locking portion for locking the first claw portion as the locking portion,
A second claw portion is formed as the claw portion on the second contact surface of one of the first bracket piece and the second bracket piece, and the other of the first bracket piece and the second bracket piece. The second abutment surface is formed with a second locking portion for locking the second claw portion as the locking portion,
A third claw portion is formed as the claw portion on the third contact surface of one of the first bracket piece and the second bracket piece, and the other of the first bracket piece and the second bracket piece. The third abutting surface is formed with a third locking portion for locking the third claw portion as the locking portion,
Further, the reinforcing claw portion is formed on the third contact surface of one of the first bracket piece and the second bracket piece so as to be separated from the third claw portion in the axial direction of the pipe. The reinforcing locking portion is spaced apart from the third locking portion in the axial direction of the pipe on the other third contact surface of the first bracket piece and the second bracket piece. Is formed . The vehicle air conditioner characterized by the above-mentioned. Nipping the two pipes in which the first bracket piece and the second bracket piece are parallel,
The first bracket piece and the second bracket piece are brought into contact with each other between the two pipes,
The vehicle air conditioner according to claim 1, wherein the reinforcing claw portion and the reinforcing locking portion are arranged at a location between the two pipes. The insertion protrusion is provided on one of the first contact surface and the second contact surface of the first bracket piece and the second bracket piece,
The said insertion hole is provided in the said 1st contact surface and the said 2nd contact surface of the other of the said 1st bracket piece and the said 2nd bracket piece. The Claim 1 or 2 characterized by the above-mentioned. Air conditioner for vehicles. The first bracket piece and the second bracket piece are provided on the vehicle front side of the case, and the third claw portion and the return portion of the reinforcing claw portion are formed so as to protrude forward of the vehicle. The vehicle air conditioner according to claim 3 . The air conditioning apparatus according to any one of claims 1 to 4, characterized in that protrudes from barb tip of the inserting projection is provided at the distal end of the claw portion. The vehicular air conditioner according to any one of claims 1 to 5 , wherein the plurality of claw portions are arranged so that return portions provided at tips of the claw portions are arranged in different directions. The first bracket piece and the second bracket piece include a flange portion that comes into contact with the partition wall separating the vehicle compartment and the engine compartment from the vehicle compartment side,
The vehicle air conditioner according to any one of claims 1 to 6, wherein the reinforcing claw portion is disposed closer to the passenger compartment side than the flange portion. It is disposed on the vehicle compartment side with respect to the reinforcing claw portion, and includes a stopper that restricts the first bracket piece and the second bracket piece from rotating with respect to each other about the boundary portion. The vehicle air conditioner according to claim 7 . The vehicle air that fixes the pipe connected to the heat exchanger to the outside of the case containing the heat exchanger by sandwiching the first bracket piece and the second bracket piece that can be attached to and detached from each other. A harmony device,
A fixing portion provided on the first bracket piece and the second bracket piece and having a crushing portion that is deformed when the pipe is held;
A plurality of claw portions provided on both sides of the fixed portion with respect to one of the first bracket piece and the second bracket piece;
A plurality of locking portions which are provided on both sides of the fixed portion with respect to the other of the first bracket piece and the second bracket piece and to which the claw portion is locked;
A reinforcing claw portion installed on one of the first bracket piece and the second bracket piece, spaced apart from the claw portion in the axial direction of the pipe,
A reinforcing locking portion provided on the other of the first bracket piece and the second bracket piece and to which the reinforcing claw portion is locked;
An insertion protrusion provided on one of the first bracket piece and the second bracket piece;
An insertion hole provided in the other of the first bracket piece and the second bracket piece and into which the insertion protrusion is inserted;
With
The distal end of the insertion protrusion protrudes beyond the return portion provided at the distal end of the claw portion.
A vehicle air conditioner characterized by the above . The vehicle air that fixes the pipe connected to the heat exchanger to the outside of the case containing the heat exchanger by sandwiching the first bracket piece and the second bracket piece that can be attached to and detached from each other. A harmony device,
A fixing portion provided on the first bracket piece and the second bracket piece and having a crushing portion that is deformed when the pipe is held;
A plurality of claw portions provided on both sides of the fixed portion with respect to one of the first bracket piece and the second bracket piece;
A plurality of locking portions which are provided on both sides of the fixed portion with respect to the other of the first bracket piece and the second bracket piece and to which the claw portion is locked;
A reinforcing claw portion installed on one of the first bracket piece and the second bracket piece, spaced apart from the claw portion in the axial direction of the pipe,
A reinforcing locking portion provided on the other of the first bracket piece and the second bracket piece and to which the reinforcing claw portion is locked;
With
The plurality of claw portions are arranged so that the return portions provided at the tips of the claw portions are directed in different directions.
A vehicle air conditioner characterized by the above . The vehicle air that fixes the pipe connected to the heat exchanger to the outside of the case containing the heat exchanger by sandwiching the first bracket piece and the second bracket piece that can be attached to and detached from each other. A harmony device,
A fixing portion provided on the first bracket piece and the second bracket piece and having a crushing portion that is deformed when the pipe is held;
A plurality of claw portions provided on both sides of the fixed portion with respect to one of the first bracket piece and the second bracket piece;
A plurality of locking portions which are provided on both sides of the fixed portion with respect to the other of the first bracket piece and the second bracket piece and to which the claw portion is locked;
A reinforcing claw portion installed on one of the first bracket piece and the second bracket piece, spaced apart from the claw portion in the axial direction of the pipe,
A reinforcing locking portion provided on the other of the first bracket piece and the second bracket piece and to which the reinforcing claw portion is locked;
A flange portion in which the first bracket piece and the second bracket piece abut against the partition wall separating the vehicle compartment and the engine compartment from the vehicle compartment side;
With
The reinforcing claw portion is disposed closer to the vehicle compartment than the flange portion.
A vehicle air conditioner characterized by the above.

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