CN1043924C

CN1043924C - Gas storing dryor used for air conditioner of vehicles

Info

Publication number: CN1043924C
Application number: CN93103555A
Authority: CN
Inventors: 古田卓司; 斎藤清亮
Original assignee: Fujikoki Corp
Current assignee: Fujikoki Corp
Priority date: 1993-02-26
Filing date: 1993-03-31
Publication date: 1999-06-30
Anticipated expiration: 2013-03-31
Also published as: JPH06249550A; KR0183418B1; JP3207584B2; CN1091701A; KR940019510A

Abstract

To make assembling simple with a small manhour and dissolve a problem, in which a refrigerant suction pipe disengages from and drops off a header, by having a header fitted into and secured to an opening at a top of a tank such that a central joint port of the header is assembled to be closely fitted onto an upper end portion of the suction pipe. A refrigerant suction pipe 23 and a filter section 40 are placed in a tank 1, and a header 31 is fitted into and secured to an opening at a top of the tank such that a central joint port 34 of the header is assembled to be closely fitted onto an upper end portion of the suction pipe 23. Mounted to a lower end portion of the refrigerant suction pipe 23 is a bearing member 24 which has a through hole 27 for suction of a refrigerant and abuts against a bottom surface 22 of the tank to support the refrigerant suction pipe 23 centrally of the tank. Therefore, assembling is made simple with a small manhour, and a problem, in which the refrigerant suction pipe 23 disengages from and drops off the header 31, can be dissolved.

Description

Gas storing dryor used for air conditioner of vehicles

The gas storage dryer that the motorcar air conditioner that the relevant liquid refrigerant that vehicle refrigeration system is used of the present invention can temporarily stop is used.

Fig. 5 described later represents the gas storage dryer that traditional vehicle refrigeration system is used, in the upper end is the bosom position of the container 1 of opening, the barrel-contoured filter part 3 of filter is set, this filter part 3 is by for removing the desiccant 2 of moisture content in the refrigerant, holds the mesh that has for the lower filter 3a of the felt of removing dust etc. and top filter 3a ' and with these or the round member 3b and the lid 3c of a plurality of apertures forms.

5 refrigerant draft tubes for running through from the centre hole of above-mentioned filter part 3, and have the securing filter fixed part 4 of above-mentioned round member 3b (forming), above-mentioned filter part 3 is fixed on the refrigerant draft tube 5 with the fixed plate 3d on the upper position that is embedded in above-mentioned lid 3c with the pipe bulge.

The upper end 12 of above-mentioned draft tube 5 is behind the coated aquaseal, sealed being fixed on the end cap 6 by carry out expander processing from the top.And for this end cap 6, above-mentioned draft tube 5 is suspended with the barrel-contoured filter part 3 of the filter on the filter fixed part 4 that is fixed on this draft tube 5 with suspending shapes in midair and is bearing in the said vesse 1.

Above-mentioned end cap 6 has and refrigerant suction pipe 7 bonded assembly inflow entrances 8, and and refrigerant discharge leader 11 bonded assembly flow exports 10, and it is fixing as shown in Figure 5 it to be entrenched in the upper end open portion of said vesse 1 welding.

And the liquid refrigerant from above-mentioned induction pipe 7 and inflow entrance 8 flows in the containers 1 by above-mentioned filter part 3, temporarily rests on the bottom of container 1.Rest on the liquid refrigerant of this container bottom from the lower ending opening portion 9 of above-mentioned draft tube 5 (with the bottom surface foot 13 of container 1 segment distance of being separated by) be sucked out, flow export 10 by above-mentioned end cap 6 flows out from exhaust tube 11, and in figure not the arrival evaporators such as temperature expansion valve of expression evaporate.

In above-mentioned traditional gas storage dryer, filter part 3 is assembled as filter box above-mentioned owing to need resemble in advance, and be fixed on the draft tube 5 and suspended in midair, thereby be necessary expander is carried out in the upper end 12 of draft tube 5, thereby can be fixed on the end cap 6 strongly.Thereby exist assembling to bother; Cause is carried out the expander of draft tube 5, and takes place the deletrious attritive powder of refrigerating cycle; Carry out insufficiently when reliable in the expander operation, can make the refrigerant draft tube 5 that is lifting filter part 3 fall down, drop in the container 1 from container 6; Make problems such as liquid refrigerant can not be sucked out.

The object of the invention is to provide assembling simple, and man-hour is few, the gas storing dryor used for air conditioner of vehicles that can avoid the refrigerant draft tube to come off from end cap.

According to gas storing dryor used for air conditioner of vehicles of the present invention, the container that comprises the upper end opening, the chimeric end cap that is fixed in this container upper end peristome, make the refrigerant that flows into from the refrigerant inflow entrance of above-mentioned end cap by being maintained at the filter part in this container, for taking out storing at the liquid refrigerant of said vesse bottom refrigerant outlet from above-mentioned end cap, be configured to run through from above-mentioned filter part, the upper end by intercalation the center of above-mentioned end cap engages the mouth on the refrigerant draft tube, be characterized in also comprising being configured to contact with said vesse inner bottom surface central portion, be positioned at above-mentioned refrigerant draft tube lower end, and have the supporting member of refrigerant sucking-off with through hole.

Gas storage dryer according to above-mentioned formation, then can be assembled into refrigerant draft tube and filter part are fixedly installed in the container, make in the chimeric upper end open portion that is fixed on this container of end cap, make the center joint mouth of this end cap and the upper end of draft tube form the sealing chimerism, therefore, relatively the draft tube upper end is carried out expander and is fixed on traditional gas storage dryer on the end cap, and it is simple to have an assembling, changes advantage few when taking a lot of work.

In addition, for above-mentioned such gas storage dryer of installing, owing to have the supporting member of refrigerant sucking-off with through hole in the installation of the bottom of refrigerant draft tube, this supporting member and container bottom contact, above-mentioned draft tube is bearing in the centre of container, so the loading that can support this draft tube and be fixed on filter part on this draft tube with above-mentioned supporting member.Even adopt upper end intercalation to engage in the mouth at the center of end cap with above-mentioned draft tube, form the leak free structure with containment member, the refrigerant draft tube easily is resolved from the problem that end cap comes off.

Simple declaration to accompanying drawing

Fig. 1 is the center buttock figure that schematically illustrates the recovery dryer that one embodiment of the invention air conditioner in car uses,

Fig. 2 is the block diagram of supporting member that is installed in the draft tube bottom of above-mentioned dryer,

Fig. 3 is the amplification profile of the above-mentioned dryer of expression center joint mouthful main portion,

Fig. 4 is the longitudinal diagram that is applicable to the various chieftains of above-mentioned dryer,

Fig. 5 is the center buttock figure that schematically illustrates traditional recovery dryer.

Embodiment

Below, 1-3 is specifically described one embodiment of the invention with reference to accompanying drawing.

Among Fig. 1,1 for the upper end is the container of opening, this container is formed cylindric, and its bottom surface 21 is formed have the flat basin shape that keeps bevelled dip plane 22a with flat central portion 22.

23 for being configured in the refrigerant draft tube of said vesse 1 central authorities, forms the filter retainer 4 of outside expansion at the roughly midway location along its short transverse.

24 for being installed in the supporting member of above-mentioned draft tube 23 bottoms, as the draft tube installing component, it is formed shape as shown in Figure 2, promptly form the chimeric mounting hole 25 that has with the contacted ladder endoporus 26 in the lower end of draft tube 23, refrigerant sucking-off through hole 27, this through hole 27 constitutes (also can be the horizontal clearance hole that the bottom with mounting hole 25 is communicated with) by the lateral opening lower end groove that is communicated with mounting hole 25, and dip plane, lower end 24a, this dip plane 24a, guiding supporting member 24 stops on the flat central portion 22 along above-mentioned dip plane 22a.This draft tube installation component is that the bottom central part 22 of supporting member 24 and said vesse 1 contacts, and as shown in Figure 1, above-mentioned draft tube is propped up centre at container.

40 is filter part, it is supported on the filter retainer 4 of above-mentioned draft tube 23 and remains in the container 1, be by forming with plectanes such as punch metal plate or dictyosomes, insert on the above-mentioned draft tube 23 and be fixed on the holding plate 28a on the filter retainer 4, put on this holding plate, be the lower filter 29 of felt of removing dust in the refrigerant etc., be filled on this lower filter, for removing a certain amount of desiccant 30 of moisture content in the refrigerant, topped on this desiccant 30, top filter 29a for felt of removing dust in the refrigerant etc., the centre hole that is formed by the plectane with punch metal plate with numerous logical liquid apertures or dictyosome etc. is inserted on the above-mentioned draft tube 23, topped pressing plate 28b on the filter 29a of top constitutes.

In addition, the peripheral part of above-mentioned holding plate 28a, pressing plate 28b and centre hole portion thereof are flange shape, and the outer peripheral face of flange and the interior perimeter surface of container 1 are contacted slightly, yet, also can not make above-mentioned holding plate 28a and pressing plate 28b be flange shape.In addition, make the internal diameter of external diameter container 1 of above-mentioned lower filter 29 and top filter 29a big slightly, make its external diameter generation elastic shrinkage and insert in the container 1, yet, also can make the internal diameter of the external diameter of lower filter 29 and top filter 29a and container 1 roughly the same.

31 for being entrenched in the said vesse 1 upper end open portion, its junction surface as shown in Figure 1, by the welding fixed end caps, this cover plate has for the inflow entrance 32 that refrigerant flows into the pipe arrangement (not shown) is installed, for being installed, refrigerant discharges the flow export 33 of pipe arrangement (not shown), be communicated with this flow export 33, intercalation engages mouth 34 at the center of the upper end of above-mentioned draft tube 23, in this inside that engages mouth 34 containment members 36 such as O type circle that the upper end that makes draft tube 23 forms gas tight seal are set, and fix by the riveting limits that the below top ends 35 with above-mentioned joint mouth 34 forms as shown in Figure 3.Therefore, in the time of on the upper end open portion of above-mentioned end cap 31 intercalations at container 1, the upper end that makes above-mentioned draft tube 23 in the endoporus 37 of above-mentioned joint mouth 34, is formed gas tight seals by containment member 36 by intercalation.

In addition, above-mentioned end cap 31 be the situation that structure form shown in Fig. 4 (a) is used in expression among Fig. 1, yet the application is not limited to this, can both be general for the end cap 31 of shape shown in Fig. 4 (b) or Fig. 4 (c) etc.

When the assembling of the gas storage dryer that carries out above-mentioned formation, earlier holding plate 28a and lower filter 29 are inserted logical being located on the draft tube 23 of its lower end mounting support member 24 from the upper end of draft tube 23, and it is stopped on the filter retainer 4, and then when intercalation is keeping the draft tube 23 of holding plate 28a and lower filter 29 in the upper end open portion insertion container 1 of container 1, the bottom of this draft tube 23, the part that is supporting member 24 slides along the dip plane 22a of container bottoms 21, and stop on the flat central portion 22 of container bottoms 21, on the other hand, utilize the elasticity of above-mentioned filter 29, the upper section of draft tube 23 is fixed on the centre of container 1.

Then, the desiccant 30 of specified amount is filled on the lower filter 29 from the upper end open portion of container 1, topped top filter 29a and pressing plate 28b, and then end cap 31 is entrenched in the upper end open portion of container 1.

At this moment,, this embedding center, draft tube upper end is engaged in the endoporus 37 of mouth 34, form gas tight seals by containment members such as O type circle 36 owing to the upper end of above-mentioned draft tube 23 has been fixed on the centre of container 1.In addition, make the suitable circulation gap that keeps between the bottom of the flat central portion 22 of container bottoms 21 and draft tube 23 as shown in Figure 1 with above-mentioned supporting member 34.

After above-mentioned end cap 31 being entrenched in the upper end open portion of container 1, wait with welding the junction surface of itself and container 1 is fixed, make said vesse 1 airtight.Therefore, the liquid phase refrigerant the refrigerant of the gas-liquid two-phase that flows into from inflow entrance 32 by filter part 40, eliminates wherein moisture content and dust, and liquid refrigerant 39 is trapped in the bottom of container 1.

Make the flow through through hole 27 of supporting member 24 of this liquid refrigerant 39, through in draft tube 23 and flow export 33 flow graphs not the temperature expansion valve of expression etc. locate.In addition, because that the junction surface of the upper end of draft tube 23 and end cap 31 has formed is airtight, therefore stagnates the gaseous refrigerant of staying container 1 top and can not let out to flow export one side leakage.

In the above-described embodiments, yet container 1 is a cylindrical shape, can not be cylindrical shape also.As long as make the shape of end cap 31 and filter part 40 etc. and container match just passable.

According to gas storing dryor used for air conditioner of vehicles of the present invention, can be assembled into refrigerant draft tube 23 and filter part 40 are arranged in the container 1, in the chimeric upper end open portion that is fixed on this container 1 of end cap 31, make the center of this end cap 31 engage mouthful 34 sealings and be entrenched on the upper end of draft tube 23.Carry out expander like this and to the draft tube upper end, and the traditional gas storage dryer that is fixed on the end cap compares, it is simple to have an assembling, advantage such as when not taking a lot of work.

In addition, for above-mentioned such stack-mounted gas storage dryer, owing to have the supporting member 24 of refrigerant sucking-off with through hole 27 in the installation of the bottom of refrigerant draft tube 23, this supporting member 24 and container bottom face 22 are contacted, above-mentioned draft tube 23 is bearing in the central part of container, so can and be fixed on the loading of the filter part 40 on this draft tube with this draft tube 23 of above-mentioned supporting member 24 supportings, and can guarantee suitable circulation gap between draft tube 23 and container bottom with above-mentioned supporting member 24.Therefore,, carry out the leak free structure, also can solve the problem that refrigerant draft tube 23 comes off from end cap 31 with containment member 36 even adopt upper end intercalation to engage on the mouth 34 at the center of end cap 31 with above-mentioned draft tube 23.

Claims

1. gas storing dryor used for air conditioner of vehicles, the container (1) that comprises the upper end opening, the chimeric end cap (31) that is fixed in this container upper end peristome, allow the refrigerant that flows into from the refrigerant inflow entrance (32) of above-mentioned end cap pass through, be maintained at the filter part (40) in the said vesse, for taking out storing at the liquid refrigerant of said vesse bottom refrigerant outlet from above-mentioned end cap, be configured to run through from above-mentioned filter part, the upper end is engaged the refrigerant draft tube (23) of mouth on (34) by intercalation at the center of above-mentioned end cap, it is characterized in that also comprising that being configured to the lower end contacts with said vesse inner bottom surface central portion (22), be positioned at above-mentioned refrigerant draft tube lower end, and have the supporting member (27) of refrigerant sucking-off with through hole.

2. according to the described dryer of claim 1, it is characterized in that said vesse inner bottom surface central portion (22) is a tabular surface.

3. according to the described dryer of claim 1, it is characterized in that said vesse inner bottom surface central portion (22), and the end and have and tilt in this container to this flat central portion for smooth, and with the slick and sly dip plane that links to each other of this central portion.