CN1935544A

CN1935544A - Dustproof cover for air condition of vehicle

Info

Publication number: CN1935544A
Application number: CN 200610139261
Authority: CN
Inventors: 鸟羽祐司
Original assignee: Keihin Dock Co Ltd
Current assignee: Keihin Dock Co Ltd
Priority date: 2005-09-20
Filing date: 2006-09-20
Publication date: 2007-03-28
Anticipated expiration: 2026-09-20
Also published as: JP4441468B2; JP2007083747A; CN100515812C

Abstract

The present invention provides a dustproof cover for air condition of vehicle. An evaporator (14) which is adopted for the air-conditioner (10) for a vehicle is provided with a connecting part (30) at ends of a pair of pipe arrangements (28a and 28b) in which the refrigerants circulate. A dust preventing cap (52) which prevents dust, dirt or the like from entering the inside of the evaporator (14) through the first and second hole sections (36 and 38) is fitted on the connecting part (30). The dust preventing cap (52) comprises a main body (54) equipped with a first and second fitting sections (56 and 58) which close the first and second holes (36 and 38), and a hook (60) which is formed in a manner to protrude from the main body (54), and pulled when the main body (54) is detached from the connecting part (30).

Description

The cover of dust that is used for air conditioner for vehicles

Technical field

The present invention relates to a kind of cover of dust that is used for air conditioner for vehicles, this cover of dust seals the path of cooling end in air conditioner for vehicles.

Background technology

In the past, in air conditioner for vehicles, evaporator and heater for heating air core with coolant air, and this is mixed with required blending ratio through the air of over cooling with through the air that heats, by optionally blowing, carry out the adjusting of the indoor temperature and humidity of described car from a plurality of blowing mouths towards the indoor opening of car.

The air conditioner for vehicles that comprises above-mentioned evaporator is disposed at the car indoor of separating with engine room by the vehicle next door, and is connected by pipe arrangement and link with compressor etc. in being arranged at described engine room.And, importing to evaporator by the refrigerant of compressor compresses via on high-tension side pipe arrangement and link, and in this evaporator, carry out interchange of heat with air, the pipe arrangement via low pressure side is circulated again into described compressor then.

In this evaporator, the end that for example constitutes the pipe arrangement of the high pressure side of refrigerant passage and low pressure side is connected with the mono-parts, is formed with the one group of connecting bore that is communicated with refrigerant passage on these parts.And the pipe arrangement of high pressure side and low pressure side is connected with link with the pipe arrangement of engine room side via described parts.At this moment, the connecting bore of parts is towards outside opening, therefore with evaporator with before the link of engine room side is connected, dusts etc. might be invaded the inside of evaporator by this connecting bore.

In order to prevent that dust etc. from invading evaporator inside like this, known have the connecting bore of pair parts to carry out the osed top lid.This lid is provided with respectively individually corresponding to one group of connecting bore, and seals described connecting bore (for example, opening flat 9-11733 communique with reference to the Japanese documentation spy) in the described connecting bore by inserting than the closure that the end face of described lid is given prominence to.

But, open in the prior art of flat 9-11733 communique the Japanese documentation spy, because the one group of connecting bore that is arranged at parts is installed independent lid respectively, thus the installation exercise complexity, and number of parts increases.

In addition, when taking off when covering from parts, owing to must take off described lid respectively individually, so the operating efficiency when causing the described lid of dismounting reduces for parts are connected with the connecting portion of engine room side.

On the other hand, when making lid when parts break away from, the head of being controlled this lid by the operator carries out drawing, so that this lid leaves from these parts, but wishing more reliably and easily should cover with respect to described parts takes off.

Summary of the invention

General objects of the present invention is to provide a kind of cover of dust that is used for air conditioner for vehicles, this cover of dust can load and unload easily with respect to the connecting portion of cooling end, and can be reliably at the end face opening of this connecting portion so that the intercommunicating pore of refrigerant circulation seal.

Description of drawings

To understand above and other objects of the present invention, feature and advantage more by following description taken together with the accompanying drawings, wherein accompanying drawing shows the preferred embodiments of the present invention in the mode of example.

Fig. 1 is illustrated in the air conditioner for vehicles of the cover of dust of having used first embodiment of the invention, makes the stereoscopic figure of cover of dust from the state of this air conditioner for vehicles disengaging.

Fig. 2 is the amplification stereogram that cover of dust that Fig. 1 is shown is installed in the state on the link of evaporator.

Fig. 3 is the amplification stereogram that the state that the cover of dust that makes Fig. 2 breaks away from from link is shown.

Fig. 4 is the amplification view that cover of dust that Fig. 1 is shown is installed on the state of link.

Fig. 5 is the local section enlarged side view of the state of cover of dust that Fig. 2 the is shown link that is installed on evaporator.

To be hook portion that Fig. 5 is shown pushed and the enlarged side view of the state that rotates to main body side by second housing Fig. 6.

Fig. 7 is the amplification stereogram that cover of dust that second embodiment of the invention is shown is installed in the state on the link of evaporator.

Fig. 8 is the amplification view that cover of dust that Fig. 7 is shown is installed on the state of link.

Fig. 9 is the enlarged side view that cover of dust that Fig. 7 is shown is installed on the state of link.

Figure 10 is the amplification stereogram that cover of dust that third embodiment of the invention is shown is installed in the state on the link of evaporator.

Figure 11 is the amplification view that cover of dust that Figure 10 is shown is installed on the state of link.

Figure 12 is the local section enlarged side view that cover of dust that Figure 10 is shown is installed on the state of link.

Figure 13 illustrates to make the exploded perspective view of cap assembly from the cover of dust monomer of the state of the main body disengaging of Figure 10.

The specific embodiment

In Fig. 1, the air conditioner for vehicles of the cover of dust of embodiment of the present invention is used in reference number 10 expressions.

As shown in Figure 1, this air conditioner for vehicles 10 comprises: the cover body 12 that constitutes the individual channel of air in inside; The evaporator (cooling end) 14 that is arranged at the inside of described cover body 12 and air is cooled off; And the heater core (not shown) that described air is heated.

Cover body 12 comprises first housing 16 of taking in evaporator 14 and heater core and second housing 18 that is installed on these evaporator 14 sidepieces.

Have top blast wind portion 20, defrosting blowing portion 22 and pin blowing portion 24 on first housing 16, the mixing wind that this top blast wind portion 20 will mix in this first housing 16 is sent near the indoor occupant's of car head; This defrosting blowing portion 22 is near described top blast wind portion 20 and blow near the front windshield of vehicle; This pin blowing portion 24 blows near the indoor occupant's of described car foot.

And forming roughly, the body 26 of the evaporator 14 of oblong case shape is inserted in first housing 16 by peristome (not shown).This evaporator 14 extends from the sidepiece of body 26, and has one group of link (connecting portion) 30 that is used to make pipe arrangement (path) 28a, the 28b of refrigerant circulation and is connected with the end of this

pipe arrangement

28a, 28b and is connected with pipe arrangement (not shown) from the engine room side.In addition, in

pipe arrangement

28a, 28b, by the refrigerant circulation after being disposed at not shown compressor (for example air compressor compressor) the institute's refrigerant compressed in the engine room and passing through interchange of heat.On the other hand, the pipe arrangement of engine room side is connected with not shown compressor etc., and its end links into an integrated entity via connecting portion.And described connecting portion is connected with the link 30 of air conditioner for vehicles 10, thus make refrigerant via described connecting portion and link 30 circulation in pipe arrangement.

Promptly, import to link 30 by the high-voltage refrigerant of a not shown compressor compresses pipe arrangement (not shown) and the connecting portion by the engine room side, and become the vaporific of low-temp low-pressure by expansion valve 32, then by supplying to the body 26 of evaporator 14 with pipe arrangement 28a of these link 30 bonded assemblys.In addition, the air that refrigerant circulates in body 26 and in cover body 12 carries out interchange of heat, and then the pipe arrangement that supplies to the engine room side by another pipe arrangement 28b and link 30 as low pressure side, thereby circulates to described compressor.

In addition, the part of link 30 and

pipe arrangement

28a, 28b is incorporated in second housing 18; Be built-in with expansion valve 32 in this link 30, this expansion valve 32 makes it become low pressure atomized by high-voltage refrigerant is sharply expanded.

As Fig. 1～shown in Figure 6, link 30 forms roughly rectangular shape, and the one end side is connected with an assembly pipe 28a, the 28b that is connected with body 26, and this

assembly pipe

28a, 28b separate with predetermined space.In addition, have plane attachment face (end face) 34 in the other end of link 30 side, (with reference to Fig. 3) is connected with the connecting portion (not shown) that is connected with compressor that is disposed at the engine room side etc. on described attachment face 34.In addition, the attachment face 34 of this link 30 is roughly extending on the vertical in air conditioner for vehicles 10, and forms plane.

On this link 30, have: in attachment face 34 side openings and first hole portion 36 that is connected with a pipe arrangement 28a and the second hole portion 38 that is connected with another pipe arrangement 28b; And be formed between the described first and

second hole portions

36,38, and with the tapped bore 42 (with reference to Fig. 5) that described link 30 and connecting portion (not shown) bonded assembly bolt (threaded portion) 40 are threaded.

Never graphic compressor is supplied with high-pressure refrigerant to the first hole portion 36, and simultaneously, predetermined space leaves with the described first hole portion 36 in the second hole portion 38 on general horizontal direction, and circulation has from the low pressure refrigerant of body 26 to described compressor cycle.In addition, the first hole portion 36 to be formed diameter littler than the second hole portion 38.

In addition, be provided with expansion valve 32 in the inside of link 30, this expansion valve 32 is used for the pressure of the high-pressure refrigerant that imports to the first hole portion 36 is controlled, and this expansion valve 32 is by freely being shifted not shown valve portion from the outstanding diaphragm portion 44 of the sidepiece of link 30.Can and supply to the body 26 of evaporator 14 by expansion valve 32 control presssures thus.

In link 30, different corresponding to interior all diameters of the first hole portion 36 and the second hole portion 38, the first hole portion, 36 sides are formed the narrow shape of width with respect to the second hole portion, 38 sides.

As shown in Figure 5, bolt 40 is made of the thru-bolt of the length that forms a shape, and the one end screws in tapped bore 42, and is fixed on the link 30 by nut 46, and simultaneously, the other end is from the attachment face 34 outstanding predetermined lengths of link 30.

As shown in Figure 1, second housing 18 is installed in the peristome (not shown) of first housing 16 that evaporator 14 is installed from the side, thereby this peristome is by 18 sealings of described second housing.In addition, take in the inside of second housing 18 from a part and the link 30 of

outstanding pipe arrangement

28a, 28b of the sidepiece of evaporator 14.In addition, second housing 18 has in the position of the upstream side of evaporator 14: be used for the importing path 48 that never graphic fan imports air; And towards the open pore 50 of attachment face 34 openings that are accommodated in the described link 30 of second housing, 18 in-to-ins.As Fig. 1～shown in Figure 3, this open pore 50 forms the slotted hole shape and has the big slightly aperture area of face area than the attachment face 34 of link 30.

Below, attachment face 34 that is installed on link 30 and the cover of dust 52 that seals the first and second hole portions (intercommunicating pore) 36,38 are described.

As Fig. 2～shown in Figure 5, this cover of dust 52 forms by having flexible resin prepared material, and comprises: with the main body (body) 54 of attachment face 34 butts of link 30; Be cylindric outstanding and be inserted into first and second fitting portions (insertion section) 56,58 in the first and

second hole portions

36,38 of this link 30 respectively with respect to described main body 54; And be configured to freely, and make cover of dust 52 when link 30 breaks away from, can be made for the hook portion 60 of dealer's drawing with respect to described main body 54 deflections.

Main body 54 forms tabular, as shown in Figure 4, its length dimension L1 be formed length dimension L2 than attachment face 34 slightly little (L1＜L2), and, with this length dimension L1 substantially the width dimensions W1 of vertical main body 54 be formed with the width dimensions W2 of attachment face 34 identical (W1  W2) substantially.In addition, main body 54 is formed identical (with reference to Fig. 5) substantially with the gauge of hook portion 60.

As shown in Figure 5 and Figure 6, this first and

second fitting portion

56,58 leaves predetermined space and disposes on the length direction of main body 54.And it is identical substantially with interior all diameters of the first hole portion 36 that the outer circumference diameter of first fitting portion 56 is formed; Outer peripheral face at described first fitting portion 56 is provided with a plurality of towards the outstanding rib 62 (with reference to Fig. 5 and Fig. 6) of radial outside.This rib 62 is provided with at interval along the outer peripheral face equal angles of first fitting portion 56.

In addition, second fitting portion 58 is configured in when first fitting portion 56 inserts the first hole portion 36 position relative with the second hole portion 38 of link 30, and forms identical with interior all diameter cardinal principles of this second hole portion 38.And, being provided with a plurality of ribs of giving prominence to towards radial outside 62 (with reference to Fig. 5 and Fig. 6) at the outer peripheral face of second fitting portion 58, this rib 62 is provided with at interval along the outer peripheral face equal angles of second fitting portion 58.

That is, when inserting first and second fitting

portions

56,58 respectively with respect to the first and

second hole portions

36,38, rib 62 is on one side along the displacement on one side of sliding of the inner peripheral surface of the described first and second hole portions 36,38.Therefore, first and second fitting

portions

56,58 are chimeric with the described first and

second hole portions

36,38 by forming than the big slightly described rib 62 of interior all diameters of the first and

second hole portions

36,38.

In addition,,, on the position between first fitting portion 56 and second fitting portion 58, form inserting hole 64, in described inserting hole 64, insert bolt 40 and the nut 46 that is threaded with tapped bore 42 in the substantial middle portion of main body 54 as Fig. 2 and shown in Figure 4.The diameter of this inserting hole 64 is set at bigger with the outer circumference diameter of the nut 46 of fixing this bolt 40 than described bolt 40.

On the other hand, hook portion 60 is arranged on an end of the main body 54 that is provided with second fitting portion 58 via one group of arm 66.The position, boundary that this hook portion 60 is set to this hook portion 60 and arm 66 is that fulcrum rotates freely, so as from respect to the erectility of described main body 54 approximate vertical near these main body 54 sides.In addition, hook portion 60 can from described erectility (with reference to Fig. 5) to the scopes of roughly 90 degree of the overlapping approximate horizontal state (with reference to Fig. 6) of main body 54 in rotation.In addition, the substantial middle portion of hook portion 60 forms and is cut into oblong-shaped and cross section and is U font roughly.

That is,, remain erectility (with reference to Fig. 5) under the effect of the elastic force that hook portion 60 is produced between itself and main body 54 with respect to this main body 54 approximate vertical not generally to these hook portion 60 applied loads; When the load that this hook portion 60 applied towards the direction of main body 54 sides, thereby hook portion 60 overcomes the elastic force of this hook portion 60 and becomes approximate horizontal state (with reference to Fig. 6) to rotating the most about 90 degree with the approaching direction of this main body 54.At this moment, hook portion 60 is fulcrum and rotational displacement with the junction surface of arm 66 and main body 54.

As shown in Figure 4, since arm 66 form towards the direction width that leaves from an end of main body 54 increase gradually two forked, so the outside width size W3 of bonded assembly hook portion 60 and inboard width dimensions W4 are set to width dimensions W1 than main body 54 big (W3, W4＞W1) via described arm 66.Thus, rotate and when overlapping, can avoid this hook portion 60 overlapping on its Width when hook portion 60 with main body 54 with main body 54 almost parallels.

The other end side that is provided with the main body 54 of first fitting portion 56 forms the tapered taper towards its top, and its end forms circular-arc.Thus, hook portion 60 rotate and with the overlapping approximate horizontal state of main body 54 under, can avoid the other end of the top of this hook portion 60 and main body 54 overlapping.

Like this, cover of dust 52 forms following shape, when becoming with main body 54 almost parallel states in that hook portion 60 is rotated (with reference to Fig. 6), can avoid this main body 54 and hook portion 60 overlapping shape on its length direction and Width that is:.Therefore, when making hook portion 60 turn to the approximate horizontal state, the size of the thickness direction of cover of dust 52 is increased.

In addition, when the length setting of hook portion 60 became with main body 54 almost parallel states for rotating when this hook portion 60, its top ends was positioned at all sides (with reference to Fig. 4) with respect to the open pore 50 of second housing 18.

The formation of the air conditioner for vehicles 10 of the cover of dust 52 of application embodiment of the present invention substantially as mentioned above.To after described cover of dust 52 is installed with respect to the link 30 of evaporator 14, second housing 18 is carried out the stack-mounted situation with respect to first housing 16 describe below.

At first, with respect to the evaporator 14 of in first housing 16, having taken in body 26, cover of dust 52 is installed on the attachment face 34 of its link 30.Particularly, control cover of dust 52 and make first and

second fitting portions

56,58 be positioned at described attachment face 34 sides, then this first fitting portion 56 is inserted in the first hole portion 36, simultaneously, second fitting portion 58 is inserted the second hole portion 38.At this moment, the rib 62 of first and second fitting

portions

56,58 inserts on one side along the inner peripheral surface slip of the first and

second hole portions

36,38 on one side, therefore described first and second fitting

portions

56,58 and the first and

second hole portions

36,38 are chimeric, thereby can prevent that cover of dust 52 from coming off with respect to link 30.

Like this, by in advance cover of dust 52 being installed on link 30, can prevent reliably that dust etc. from invading the inside of evaporator 14 from the outside by the first and

second hole portions

36,38.

Then, with respect to first housing 16 second housing 18 is installed from the side of link 30 sides.At this moment, the mode that becomes attachment face 34 sides of link 30 with open pore 50 makes second housing 18 close to first housing 16 on general horizontal direction, and the end of second housing 18 is installed on the peristome (not shown) of this first housing 16, simultaneously, link 30 and a part of

pipe arrangement

28a, 28b are accommodated in the inside of this second housing 18.

At this moment, along with second housing 18 is close to first housing, 16 sides, as shown in Figure 6, hook portion 60 is pushed to link 30 sides, thereby this hook portion 60 is rotated displacement on one side towards main body 54 sides on one side by near the internal face 18a the open pore 50 of this second housing 18.In other words, hook portion 60 is a fulcrum and slowly rotating and close to main body 54 sides with the position, boundary of itself and arm 66, thereby becomes the approximate horizontal state with this main body 54 almost parallels.

Then, when making second housing 18 further near first housing, 16 sides, thereby when making described second housing 18 be installed in the sidepiece of described first housing 16, because the length of hook portion 60 is set so that the top ends of this hook portion 60 is than the more inner all sides of the open pore 50 of second housing 18, therefore as shown in Figure 5, can remove the state that hook portion 60 is pushed by the internal face 18a of this second housing 18 downwards, thereby this hook portion 60 is rotated on the direction of leaving main body 54 under its elastic force effect.Thus, hook portion 60 reverts to the erectility with respect to main body 54 approximate vertical via open pore 50.

At last, an end side of bolt 40 is threaded with tapped bore 42 via the inserting hole 64 of cover of dust 52, and fastening by nut 46, thus make described bolt 40 to fix to described cover of dust 52 side-prominent states from attachment face 34.

At this moment, because the first and

second hole portions

36,38 of link 30 seals reliably by cover of dust 52, so the intrusions such as dust that also can avoid when hold-down bolt 40 being produced.

Then, at the link 30 that cover of dust 52 will be installed like this with before the connecting portion (not shown) of compressor that is connected in the engine room side etc. is connected, control the hook portion 60 of giving prominence to the outside by not shown operator from the open pore 50 of second housing 18, and drawing on the direction of leaving from described link 30.Thus, cover of dust 52 is broken away from from link 30.Particularly, first and second

fitting portions

56,58 of the first and

second hole portions

36,38 that are embedded in are broken away from.

In addition, make attachment face 34 butts of the link 30 after the connecting portion (not shown) that is connected in not shown compressor etc. breaks away from cover of dust 52, and after connecting the bolt 40 that inserts described link 30, connect by not shown secure component.Thus, the evaporator 14 of air conditioner for vehicles 10 is connected with connecting portion by link 30 with compressor that is disposed at engine room etc.

As mentioned above, in the first embodiment, attachment face 34 with respect to the link 30 of evaporator 14 is installed the cover of dust 52 of the first and

second hole portions

36,38 that can seal, simultaneously, rotation hook portion 60 freely is set on the main body 54 of this cover of dust 52, and, with respect to first housing 16 second housing 18 is installed, make the open pore 50 of described second housing 18 that described hook portion 60 faced from link 30 outstanding then to the outside.Thus, can be simultaneously and seal one group of first and

second hole portion

36,38 of link 30 easily by mono-cover of dust 52 is installed, and when not needing this cover of dust 52, can make its disengaging easily by drawing hook portion 60.

Its result, when the connecting portion of the compressor in making air conditioner for vehicles 10 and being connected in engine room etc. is connected, can shorten the production time that cover of dust 52 is broken away from from link 30, therefore and can carry out before this connection operation cover of dust 52 being installed in advance, can stop dust etc. to be invaded in the evaporator 14 as best one can.

In addition, even be equipped with on the attachment face 34 of link 30 outstanding fasteningly during, also can make this bolt 40 insert the inserting hole 64 that connects suitably to avoid described bolt 40 by on cover of dust 52, being provided with bolt 40.Therefore for link 30, also can reliably seal the first and

second hole portions

36,38 by described cover of dust 52 with bolt 40.

In addition, cover of dust 52 and the open pore 50 of second housing 18 that is installed on first housing 16 are near configuration.Therefore, when making described second housing 18 be installed on described first housing 16, can push hook portion 60 to main body 54 sides by this second housing 18 and make its rotational displacement near in advance the link 30 of cover of dust 52 being installed.At this moment, because hook portion 60 is to form with overlapping length dimension and the width dimensions of main body 54 can avoiding, therefore described hook portion 60 and main body 54 can be not overlapping on its thickness direction, thereby can suppress the increase of the gauge of cover of dust 52.Its result can prevent to contact with second housing 18 and cause the assembleability reduction owing to the thickness of cover of dust 52 increases caused this cover of dust 52, thereby can assemble first and second housings 16,18 well.

In addition, set the length of described hook portion 60, when making when hook portion 60 rotations and with main body 54 almost parallels, the inner peripheral surface of the open pore 50 of hook portion 60 to the second housings 18 in the inner part.Thus, when second housing 18 has been installed, described hook portion 60 can not pushed by the internal face 18a of second housing 18, thereby described hook portion 60 can be under its elastic force effect suitably reverts to erectility with respect to described main body 54 approximate vertical via open pore 50.Therefore, after second housing 18 has been installed, can make hook portion 60 outstanding towards the outside of open pore 50 once more, thereby the operator can utilize described hook portion 60 that cover of dust 52 reliably and is easily broken away from from link 30.

Below, the cover of dust that is used for air conditioner for vehicles 10 100 of second embodiment is as Fig. 7～shown in Figure 9.In addition, be marked with identical reference number and omit its detailed description for the inscape identical with the cover of dust 52 of above-mentioned first embodiment.

In the cover of dust 100 of this second embodiment, be with the difference of the cover of dust 52 of first embodiment, with an end bonded assembly hook portion 102 of main body 54 on be provided with first and second kinks 104,106, and be provided with to the other end side offset slightly with respect to an end of described main body 54.

In this cover of dust 100, the hook portion 102 that the cross section is roughly the U font is connected with an end of main body 54, and described hook portion 102 comprises: with the junction with described main body 54 is first kink 104 (with reference to Fig. 9) of fulcrum to the oblique predetermined angular of the other end inclination; And engage with described first kink 104 and be fulcrum to second kink 106 of vertical bending roughly with position, boundary with this first kink 104.That is, second kink 106 forms and main body 54 approximate vertical (with reference to Fig. 9).

By such structure, during when hook portion 102 rotations and with main body 54 almost parallels (the long and two-short dash line shape among Fig. 9), first kink 104 is that fulcrum is crooked highlightedly upward with the junction with

main body

54, and 106 bendings of second kink are and described main body 54 almost parallels.

Like this, on hook portion 102, set the length of first and second kinks 104,106 respectively arbitrarily, and, by changing the interface bit position of this first kink 104 and second kink 106, can rotate and, the apical position of described hook portion 102 is adjusted to the desired position in described hook portion 102 with main body 54 almost parallels, promptly when second housing 18 is installed.Promptly, can change impose a condition (for example length dimension) of described first and second kinks 104,106 according to inner peripheral surface shape and the internal face 18a of position and this second housing 18 and the gap between the main body 54 etc. of the open pore 50 of the position of the other end of main body 54, second housing 18.Thus can be reliably and prevent that easily hook portion 102 and main body 54 are overlapping and cause the gauge of cover of dust 100 to increase on its thickness direction.

In addition, as shown in Figure 7 and Figure 8, become the semicircle that constitutes by single radius by the end shape that makes hook portion 102, compare, can guarantee with the spacing distance of the inner peripheral surface of the open pore 50 of second housing 18 bigger with the hook portion 60 of the cover of dust 52 of first embodiment.Therefore, can further reliably prevent the extension that colludes, and can after second housing 18 is installed, make hook portion 102 outstanding to the outside once more via open pore 50 to the internal face 18a of second housing 18.

Below, the cover of dust that is used for air conditioner for vehicles 10 120 of the 3rd embodiment is as Figure 10～shown in Figure 13.In addition, be marked with identical reference number and omit its detailed description for the inscape identical with the cover of dust 52,100 of above-mentioned first and second embodiments.

In the cover of dust 120 of the 3rd embodiment, be with the difference of the cover of dust 52,100 of first and second embodiments, cover with cap assembly 126 and to insert the bolt 40 that connects in inserting hole 124, and described cap assembly 126 is engaged with described main body 122 is one.

In this cover of dust 120, have at one group of side-prominent flange part 128 of the interior week of inserting hole 124, this flange part 128 is set at the position (with reference to Figure 13) along the circumferentially spaced predetermined space of inserting hole 124.

In addition, as shown in figure 12, cap assembly 126 has formed bottom tube-like, and is installed to be an end that makes its opening and is positioned at bolt 40 sides, and is formed with the ring portion 130 of ring-type in the other end side.That is, the operator can make described cover of dust 120 easily break away from from link 30 by cap assembly 126 by drawing ring portion 130 on the direction of leaving from link 30.

End side at this cap assembly 126 is provided with from the first and second outstanding edge parts 132,134 of its outer peripheral face.This first and second edge part 132,134 is outstanding towards radial outside with predetermined length, and grouping is arranged on along on the position of the circumferentially spaced predetermined space of outer peripheral face.

First edge part 132 roughly forms at grade with an end of inserting the cap assembly 126 in the inserting hole 124; Second edge part 134 is formed with respect to this first edge part 132 and separates predetermined space (with reference to Figure 12) along the axis direction of described cap assembly 126.

In addition, as shown in figure 13, first edge part 132 is inserted in the inserting hole 124 and between one group of flange part 128, make described cap assembly 126 rotation predetermined angulars near the direction of flange part 128 respectively to described first and second edge parts 132,134 then.Thus, flange part 128 is inserted in respectively between one group of first edge part 132 and second edge part 134, and the fastening pawl 138 (with reference to Figure 13) that is formed at the end of this second edge part 134 engages with the end of flange part 128.

That is, the spacing distance of first and second edge parts 132,134 is set to identical or bigger slightly than the gauge of this flange part 128 substantially with the gauge of flange part 128.

Thus, when cap assembly 126 was restricted with respect to the rotation displacement of inserting hole 124, flange part 128 was fastened between first and second edge parts 132,134, thereby can limit the displacement of described cap assembly 126 on axis direction.Its result, cap assembly 126 becomes with main body 122 via inserting hole 124 installs the all-in-one-piece state.

By such structure, when bolt 40 is installed on link 30, can center on the bolt of giving prominence to from described link 30 40 easy and reliably by cap assembly 126.Therefore, can prevent that dust etc. is attached to the threaded portion 40a of the outer peripheral face that is engraved in bolt 40, can successfully carry out this connection operation thereupon when by described bolt 40 link 30 being connected in the connecting portion (not shown) of engine room side.

In addition, can make cover of dust 120 from link 30 one and disengaging easily by the ring portion 130 that is arranged at cap assembly 126.Therefore, can shorten production time when air conditioner for vehicles 10 is connected with the connecting portion that is connected in compressor etc. by link 30.

In addition, make cap assembly 126 rotate predetermined angular, can make cap assembly 126 and described main body 122 be mounted to one by so easy erecting work with respect to the main body 122 of cover of dust 120.

In addition, under the situation that does not need cap assembly 126, described cap assembly 126 is not installed with respect to the inserting hole 124 of main body 122, but can be as the cover of dust 120 that comprises described main body 122 and hook portion 60.

In addition, the cover of dust that is used for air conditioner for vehicles of the present invention is not limited to above-mentioned embodiment, can adopt various structures under the situation that does not break away from purport of the present invention.

Claims

1. cover of dust that is used for air conditioner for vehicles, this air conditioner for vehicles (10) has in cover body (12) air is cooled off to supply with the cooling end (14) of cold wind, in described air conditioner for vehicles (10), on described cooling end (14), be connected with and make one group of path (28a of refrigerant on-cycle, 28b), described cover of dust is installed on the connecting portion (30), described connecting portion (30) has respectively and this path (28a, 28b) the intercommunicating pore (36 that connects and be communicated with, 38), described cover of dust is to the described intercommunicating pore (36 in end face (34) upper shed of described connecting portion (30), 38) seal, the cover of dust of described air conditioner for vehicles is characterised in that

Described cover of dust comprises:

Body (54), this body (54) are installed on the end face (34) of described connecting portion (30), and have one group of insertion section (56,58) of inserting in the described intercommunicating pore (36,38); With

Hook portion (60,102,120), this hook portion (60,102,120) engages with respect to described body (54) predetermined oblique angle, and is set to rotate freely to this body (54) side,

When described body (54) rotated, on the end face (34) of described connecting portion (30), this hook portion (60,102,120) was configured in the outside of this body (54) of having avoided described body (54) in described hook portion (60,102,120).

2. the cover of dust that is used for air conditioner for vehicles according to claim 1 is characterized in that,

Described hook portion (60,102,120) uprightly is end face (34) approximate vertical with respect to described connecting portion (30) via the perforate (50) of the cover body (12) relative with the end face (34) of described connecting portion (30), and is exposed to the outside from described perforate (50).

3. the cover of dust that is used for air conditioner for vehicles according to claim 2 is characterized in that,

Internal face (18a) butt of described hook portion (60,102,120) and described cover body (12), thereby to described body (54) side rotational displacement.

4. the cover of dust that is used for air conditioner for vehicles according to claim 3 is characterized in that,

It is relative with the threaded portion (40) on the end face that is disposed at described connecting portion (30) (34) that described body (54) has, and be used to make the inserting hole (64) of this threaded portion (40) insertion.

5. the cover of dust that is used for air conditioner for vehicles according to claim 4 is characterized in that,

Described hook portion (60,102,120) is formed the hollow form that has excised the substantial middle portion relative with described body (54).

6. the cover of dust that is used for air conditioner for vehicles according to claim 5 is characterized in that,

The length dimension of described hook portion (60) is positioned at the length of described perforate (50) when being set to when this hook portion (60) rotation and with described body (54) almost parallel.

7. the cover of dust that is used for air conditioner for vehicles according to claim 6 is characterized in that,

The inboard width dimensions (W4) of described hook portion (60) is set to roughly the same or bigger than the width dimensions (W2) of described connecting portion (54) with the width dimensions (W2) of described connecting portion (54).

8. the cover of dust that is used for air conditioner for vehicles according to claim 5 is characterized in that,

Described hook portion (66,120) is connected via the end of one group of arm (66) with described body (54).

9. the cover of dust that is used for air conditioner for vehicles according to claim 6 is characterized in that,

Described hook portion (102) has: first kink (104) that engages with described body (54); And

Second kink (106) that bends and engage with respect to described first kink (104) predetermined oblique angle.

10. the cover of dust that is used for air conditioner for vehicles according to claim 6 is characterized in that,

Go up loading and unloading at described body (54) and be provided with cap assembly (126) freely, this cap assembly (126) is relative with the threaded portion that is installed on described connecting portion (30) (40), and around this threaded portion (40).