CN210082872U

CN210082872U - Overhead unit for overhead air conditioner and overhead air conditioner

Info

Publication number: CN210082872U
Application number: CN201920409573.8U
Authority: CN
Inventors: 刘四虎; 谢文波; 陈建民
Original assignee: Domec Zhuhai Technology Co Ltd
Current assignee: Domec Zhuhai Technology Co Ltd; Dometic Zhuhai Technology Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-02-18
Anticipated expiration: 2029-03-28
Also published as: DE112020001585T5; WO2020192746A1

Abstract

The utility model relates to an overhead unit for overhead air conditioner, this overhead unit set up on the outer wall of roof, a serial communication port, the overhead unit includes upper cover and chassis subassembly, wherein the chassis subassembly includes chassis and covering, works as the upper cover is installed on the chassis subassembly just the overhead unit sets up when on the roof, the covering covers at least that the chassis surface exposes in the upper cover with part outside the roof. The overhead unit is advantageous for installation of the overhead unit on a roof because the new chassis assembly, i.e., the combination of the chassis and the overlay over it, enables the chassis using a non-metallic material, such as EPP foam, to pass the ball pressure test due to the presence of the overlay, thereby achieving a light weight of the chassis to reduce the weight of the overhead unit while complying with safety regulations. The utility model discloses still relate to an overhead air conditioner, this overhead air conditioner is the overhead air conditioner that is used for the vehicle.

Description

Overhead unit for overhead air conditioner and overhead air conditioner

Technical Field

The utility model relates to an overhead air conditioner technical field particularly, relates to an overhead air conditioner that is used for overhead air conditioner's overhead unit and has this overhead unit.

Background

Overhead air conditioners are typically comprised of an overhead unit, an air distribution box and a plurality of connected air ducts. In particular, the overhead unit is arranged on the roof, for example on the outer wall of the roof, by means of its chassis, which has an air outlet; the air distribution box with the air inlet upper air duct is arranged on the inner wall surface of the roof, and the air outlet of the chassis is communicated with the air inlet upper air duct of the air distribution box through the opening of the roof by a plurality of connecting air pipes. For overhead air conditioners, the weight of the overhead unit on the outer wall of the roof is very important for installation. Thus, replacing an existing metal chassis or injection molded chassis with a lighter weight foam chassis is advantageous for installation. However, safety regulations require that the chassis must pass the ball pressure test, but current foams do not meet the requirements of passing the ball pressure test.

SUMMERY OF THE UTILITY MODEL

In view of the above drawbacks of the prior art overhead air conditioners, a first aspect of the present invention is directed to a new overhead unit of an overhead air conditioner, which is intended to solve at least to some extent the above technical problems of the related art.

In order to achieve the above object, a first aspect of the present invention provides an overhead unit for an overhead air conditioner, the overhead unit being disposed on an outer wall surface of a roof, characterized in that the overhead unit includes an upper cover and a chassis assembly, wherein the chassis assembly includes a chassis and a cover, when the upper cover is mounted on the chassis assembly and the overhead unit is disposed on the roof, the cover covers at least a portion of a surface of the chassis exposed to the upper cover and the roof.

The overhead unit for an overhead air conditioner according to the first aspect of the present invention, since a new chassis assembly, i.e., a combination of a chassis and a cover covering thereon, is employed, the chassis employing a non-metallic material, e.g., EPP foam, can pass a ball pressure test due to the presence of the cover, thereby achieving a light weight of the chassis to reduce the weight of the overhead unit while complying with safety regulations, which is advantageous for the installation of the overhead unit on a roof.

According to an aspect of the utility model, the chassis is provided with the back-off that stretches out from the basal portion on this chassis, the bottom of covering is provided with the frame, wherein the back-off with the frame cooperatees in order to fix chassis and covering.

According to an aspect of the utility model, the bottom of covering is provided with the stretching strap that extends between the frame, just the chassis is provided with and is used for holding the recess of stretching strap.

According to an aspect of the present invention, the number of the pull straps is two or more.

According to an aspect of the invention, the thickness of the covering is 1.5mm to 3 mm.

According to an aspect of the utility model, the degree of depth of back-off is 4mm to 10 mm.

According to an aspect of the present invention, the depth of the undercut is preferably 6 mm.

According to an aspect of the invention, the chassis is an EPP chassis.

According to an aspect of the present invention, the covering member is a plastic covering member or a metal covering member.

According to a second aspect of the present invention, an overhead air conditioner is provided, which is an overhead air conditioner for a vehicle, and has an overhead unit according to the first aspect of the present invention.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is an exploded view of a chassis assembly of an overhead unit according to a first aspect of the present invention;

FIG. 2 is an enlarged partial cross-sectional view of the base plate undercut cooperating with the cover element rim to secure the base plate and cover element;

FIG. 3 is an enlarged partial cross-sectional view of the cover drawstring received secured in the recess of the chassis;

fig. 4 is a perspective view of a chassis assembly of an overhead unit according to a first aspect of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

An overhead unit for an overhead air conditioner according to the present invention will be described with reference to the accompanying drawings.

Fig. 1 shows an exploded view of an exemplary embodiment of a chassis assembly 1 of an overhead unit according to the present invention. This chassis assembly 1 comprises a chassis 2 and a cover 3, wherein the cover 3 has at its bottom a rim 31 extending towards the inside of the cover 3, which rim 31 is intended to cooperate with an undercut 21 protruding outwards from the base of said chassis 2 to be fixed to each other to form a chassis assembly 1 according to the invention. Specifically, as shown in fig. 2, the depth of the undercut 21 is greater than the thickness of the cover 3, and the length of the bottom surface of the undercut 21 is greater than the width distance between the rims 31, such as the inverted T-like shape shown in the drawings. When the chassis 2 and cover 3 are assembled, the chassis undercuts 21 protrude from the space between the rims 31 due to the resilience of the material, e.g. EPP foam, and the rims 31 snap between the chassis base and the undercuts. This achieves a fixation between the chassis 2 and the cover 3. Alternatively, the reverse buckle 21 may also be any other structural shape capable of realizing the buckling fixation with the frame 31, for example, a trapezoid-like shape.

In some embodiments, the thickness of the cover 3 may be between 1.5mm to 3mm, while the depth of the undercut 21 may be between 4mm to 10 mm. In a preferred embodiment, the depth of the undercut 21 may be 6 mm.

Additionally or alternatively, as shown in FIG. 1, the cover 3 may have a first pull tape 32 and a second pull tape 33 extending between the borders 31. The

draw tapes

32 and 33 may be used to maintain the structural stability of the cover 3. For example, during the assembly of the chassis 2 and the cover 3, the draw tape prevents the lateral frame of the cover 3 from being deformed laterally outwards, thus ensuring the fit between the chassis 2 and the cover 3. Furthermore, as shown in fig. 3, the base plate 2 is provided with a first recess 22 and a second recess 23 for receiving the pull straps 32 and 33 (wherein the recesses 22 and 23 are provided on the undercut in the case of an undercut), so that the base plate 2 and the cover 3 can also be fixed by the cooperation of the

pull straps

32 and 33 and the recesses 22 and 23.

However, it will be appreciated by those skilled in the art that the cooperating structure of the inverted buckle and the frame or the cooperating structure of the drawstring and the groove described in the above embodiments may be used alone to fix the chassis 2 and the cover 3. When the draw tape is used alone, it may extend directly between the side frames of the cover, with the recess accommodating the draw tape being provided directly on the base of the chassis. Further, it should also be understood that, although the above figures exemplarily show that the number of the pull tapes is two, the pull tapes may alternatively take any other number, for example three or more. Correspondingly, the number of the grooves arranged on the chassis can be adjusted according to the number of the pull belts arranged on the covering part.

Fig. 4 shows a perspective view of a chassis assembly of an overhead unit according to a first aspect of the invention. Wherein the cover covers at least a portion of the surface of the chassis exposed to the outside of the upper cover and the roof, wherein the cover is made of a material, such as a plastic or metal material, which enables the chassis of a non-metallic material, such as an EPP foam material, to pass a ball pressure test, thereby achieving a light weight of the chassis to reduce the weight of the overhead unit while complying with safety regulations, which is advantageous for the installation of the overhead unit on the roof.

The embodiments shown in the above figures and described above are merely exemplary and may be secured using adhesives or screws in addition to the cooperating structure of the undercuts and bezel and/or the cooperating structure of the draw tape and groove disclosed above. In the embodiment with adhesive or screw fixation, the cover 3 may have only side frames, i.e. without the borders and/or drawstrings of the above described embodiments, which means that it covers only the part of the floor surface exposed outside the upper cover and the roof.

Alternatively, in another embodiment, the bottom of the cover 3 may be provided to have the same structure as the base of the chassis 2. The cover 3 in this embodiment has a strong structural stability. This means that the cover covers, in addition to the part of the surface of the chassis exposed to the upper cover and the roof, also the part of the chassis not exposed to the outside due to the presence of the roof, i.e. the base of the chassis.

It should be understood that any of the above embodiments of the means for securing the chassis to the cover may be used alone or in combination with one another without departing from the scope of the present invention.

Furthermore, the present invention also proposes an overhead air conditioner for a vehicle, which has the overhead unit in any of the above-described embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An overhead unit for an overhead air conditioner disposed on an outer wall surface of a roof, comprising an upper cover and a chassis assembly, wherein the chassis assembly comprises a chassis and a cover covering at least a portion of a chassis surface exposed to the outside of the upper cover and the roof when the upper cover is mounted on the chassis assembly and the overhead unit is disposed on the roof.

2. The overhead unit of claim 1 wherein the chassis is provided with an undercut extending outwardly from a base of the chassis and the cover is provided with a rim at a bottom of the cover, wherein the undercut cooperates with the rim to secure the chassis to the cover.

3. The overhead unit of claim 2 wherein the bottom of the cover is provided with a draw strap extending between the side frames and the chassis is provided with a recess for receiving the draw strap.

4. The overhead unit of claim 3, wherein the number of pull straps is two or more.

5. The overhead unit of claim 1 or 2, wherein the cover has a thickness of 1.5mm to 3 mm.

6. The overhead unit of claim 2, wherein the depth of the undercut is 4mm to 10 mm.

7. The overhead unit of claim 6, wherein the depth of the undercut is 6 mm.

8. The overhead unit of claim 1 or 2, wherein the chassis is an EPP chassis.

9. The overhead unit of claim 1 or 2, wherein the cover is a plastic cover or a metal cover.

10. An overhead air conditioner which is an overhead air conditioner for a vehicle and has an overhead unit according to any of the preceding claims.