CN209888586U - Top-mounted unit of variable-frequency top-mounted air conditioner mounted on roof of vehicle and top-mounted air conditioner - Google Patents
Top-mounted unit of variable-frequency top-mounted air conditioner mounted on roof of vehicle and top-mounted air conditioner Download PDFInfo
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- CN209888586U CN209888586U CN201920113741.9U CN201920113741U CN209888586U CN 209888586 U CN209888586 U CN 209888586U CN 201920113741 U CN201920113741 U CN 201920113741U CN 209888586 U CN209888586 U CN 209888586U
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Abstract
The utility model relates to an install top-set unit at frequency conversion top-set air conditioner at vehicle top, this top-set unit include the chassis, and on the outside on this chassis was installed this top-set unit to the outer wall on roof, the automatically controlled box of frequency conversion was installed to the inboard on this chassis, and wherein this automatically controlled box of frequency conversion has the automatically controlled board of frequency conversion and installs the radiator above that, is provided with an opening on the wall of this automatically controlled box of frequency conversion, is provided with the installation frame around this opening in the outside of this wall, the automatically controlled board of frequency conversion is fixed through this installation frame with the radiator, and wherein the automatically controlled board setting of this frequency conversion is in this automatically controlled box of frequency conversion, and this radiator is followed the automatically controlled box wall of this frequency conversion is stretched out to the opening, its characterized in that is provided with through the installation frame and encapsulates at least one top. The above-described structure of the grounded metal enclosure enclosing the heat sink enables the overhead unit to employ a chassis of non-metallic material, thereby reducing the weight of the overhead unit.
Description
Technical Field
The utility model relates to an overhead air conditioning technology field particularly, relates to an install frequency conversion overhead air conditioner's on vehicle roof overhead unit and have the overhead air conditioner of this overhead unit.
Background
Air conditioners adopting the inverter technology are increasingly popular at present, because the inverter technology has the advantages of energy consumption saving, soft start, comfort, temperature maintenance through lower frequency, very quiet and the like. The applicant has pioneered the application of inverter technology to overhead air conditioning. For an dcp applied to an overhead air conditioner, which has a creepage distance of 1.7mm, according to the requirements of standard EN60335, it is not possible to touch a radiator of the dcp, such as an aluminum radiator, even if water droplets, such as rain water droplets or washing water droplets, touch the radiator and slide off, which is also unacceptable, because these water droplets may be charged after touching the radiator, and the sliding off charged water droplets may still be touched. Therefore, in the prior art, in order to satisfy safety standards to prevent the above-mentioned situation from occurring, the material of the housing under the radiator, i.e., the material of the chassis of the overhead unit, is a metal material, and the metal chassis is grounded, so that water droplets that hit the radiator and slide down pass through the grounded metal chassis without being electrified. However, for an overhead unit mounted on the outer wall surface of a roof, the weight is very important for mounting, so that a non-metallic chassis is more suitable for the overhead unit, but a chassis made of non-metallic material would make it impossible to ground, so that the above-mentioned situation of non-compliance with standard EN60335 occurs.
SUMMERY OF THE UTILITY MODEL
Since the existing inverter overhead air conditioner has the above drawbacks, according to the first aspect of the present invention, a new inverter overhead air conditioner's overhead unit is proposed, which aims at solving the above technical problems in the related art at least to a certain extent.
In order to achieve the above object, a first aspect of the present invention provides an overhead unit of a variable frequency overhead air conditioner installed on a roof of a vehicle, the overhead unit comprises a chassis, the outer side of the chassis is used for installing the overhead unit on the outer wall surface of a roof, the inner side of the chassis is provided with a variable frequency electric control box, wherein the variable-frequency electric control box is provided with a variable-frequency electric control board and a radiator arranged on the variable-frequency electric control board, the wall surface of the variable-frequency electric control box is provided with an opening, an installation frame is arranged on the outer side of the wall surface and surrounds the opening, the variable frequency electric control board and the radiator are fixed through the installation frame, wherein the frequency conversion electric control board is arranged in the frequency conversion electric control box, the radiator extends out of the wall surface of the frequency conversion electric control box from the opening, characterized in that a metal cover enclosing at least one cover surface of the heat sink is provided by the mounting frame as a grid surface, wherein the metal cover is grounded.
According to the utility model discloses an overhead unit for frequency conversion overhead air conditioner is owing to adopted the structure of the ground connection metal cover of encapsulating the radiator for can satisfy standard EN 60335's requirement, and consequently make according to the utility model discloses an overhead unit of first aspect can adopt non-metallic material's chassis, thereby lightens the weight of overhead unit, and this is favorable to the installation of overhead unit on the roof.
In addition, the overhead unit for inverter overhead air-conditioner according to the first aspect of the present invention may further have the following additional technical features:
according to an aspect of the present invention, the metal cover is preferably a metal mesh cover.
According to an aspect of the invention, the grid openings of the metal cover are preferably hexagonal holes.
According to one aspect of the invention, the distance between the two parallel sides of the hexagonal hole is preferably 3mm to 10 mm.
According to an aspect of the invention, the distance between two parallel sides of the hexagonal hole is more preferably 5 mm.
According to an aspect of the utility model, the metal covering is provided with first installation frame and rather than relative second installation frame, wherein all be provided with the hole site on first installation frame and the second installation frame, and the installation frame be provided with hole site matched with screw post on the installation frame, via the screw the hole site of installation frame with the screw post of installation frame comes the metal covering is fixed to on the automatically controlled box of frequency conversion.
According to the utility model discloses an aspect, the metal covering is connected with the earth connection through the grounding hole that sets up on one of them of its first installation frame or second installation frame, wherein the earth connection have with grounding hole matched with hole site, through the screw via the grounding hole is in order to realize with the hole site of this earth connection the ground connection of metal covering.
According to an aspect of the invention, the chassis of the overhead unit is a non-metallic chassis.
According to one aspect of the present invention, the non-metal chassis is a plastic chassis or an EPP foam chassis.
According to the present invention, in a second aspect, an overhead air conditioner is provided having 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 schematic view of a variable frequency electronic control box in an overhead unit according to a first aspect of the present invention;
fig. 2 is a schematic perspective view of a part of the overhead unit, i.e. the variable frequency control box and the chassis, according to the 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 in the above with reference to the drawings are exemplary and intended to illustrate the invention, but are not to be construed as limiting the invention.
The following describes an overhead unit of a variable frequency overhead air conditioner installed on a roof of a vehicle according to the present invention with reference to the accompanying drawings.
Fig. 1 shows an exploded schematic view of a variable frequency electronic control box 100 of an overhead unit according to a first aspect of the present invention. The variable-frequency electronic control box 100 comprises an electronic control box body 1 and an electronic control box cover 2, wherein the electronic control box body 1 is provided with an opening 4 on a wall surface 3 opposite to the electronic control box cover 2, an installation frame 5 is arranged on the outer side of the wall surface 3 around the opening 4, hole sites 6 around the opening 4 are arranged on the installation frame 5, the number of the hole sites is preferably 8, and the hole sites 6 are used for fixing an electronic control board 7 and a radiator 8. The heat sink 8 is mounted on the non-circuit surface 10 of the electronic control board 6 through the bottom plate 9, and the bottom plate 9 has holes 11 matching with the holes 6, so that the electronic control board 7 and the heat sink 8 are fixed by screwing screws into the holes 11 of the bottom plate 9 through the holes 6 of the mounting frame 5; wherein the electrical control board 6 is arranged inside the electrical control box body 1, and the heat sink 8 protrudes from the wall surface 3 from the opening 4. Preferably, when fixing the electronic control board 7 and the heat sink 8, a gasket 12 may be additionally provided between the bottom plate 9 and the mounting frame 5 and the gasket 12 is also provided with holes 13 matching with the holes 6 for fixing by screws. When the electrical box cover 2 is screwed to the electrical box body 1, a sealing ring 14 is usually arranged between the electrical box cover 2 and a waterproof ring 15 is arranged on the electrical box cover 2 to protect the electrical control board 6 in the box body. Wherein according to an exemplary embodiment of the present invention, the metal cover for enclosing the heat sink 8 is a metal mesh cover 16, the metal mesh cover 16 employs mesh openings in the form of hexagonal holes, wherein the distance between two parallel sides of the hexagonal holes preferably adopts 5 mm. The metal mesh enclosure 16 is provided with a first mounting frame 17 and a second mounting frame 18 opposite to the first mounting frame 17 at one end thereof, wherein two hole sites 19 and a ground hole 20 between the two hole sites 19 of the first mounting frame 17 are respectively provided at two ends of the first mounting frame 17 and the second mounting frame 18; in the exemplary embodiment, the mounting frame 5 is provided with four screw posts 21 respectively engaged with the four hole sites 19, as shown in fig. 1, a first side 51 of the mounting frame 5 is provided with two screw posts 21 engaged with the hole sites 19 of the first mounting frame 17, a second side 52 of the mounting frame 5 is provided with two screw posts 21 engaged with the second mounting frame 18, so as to fix the metal mesh enclosure 16 by screwing screws into the screw posts 21 through the hole sites 19, and the metal mesh enclosure 16 is connected with a grounding wire 22 through a grounding hole 20 provided thereon, wherein the grounding wire 22 has hole sites 23 engaged with the grounding hole 20, and the grounding wire 22 is fixed by screwing screws into the hole sites 23 and the grounding hole 20 to realize grounding of the metal mesh enclosure 16. Due to the adoption of the structure of the grounding metal mesh enclosure for encapsulating the radiator and the preferred hexagonal hole with the distance between the two parallel sides being 5mm (the preferred distance can ensure that water drops can directly drop from the hole through the mesh surface of the metal mesh enclosure when dropping), the requirement of the standard EN60335 can be met when the metal mesh enclosure is touched or the water drops dropping from the radiator and passing through the metal mesh are touched.
To facilitate understanding of the present invention and the brief description of the drawings, fig. 2 shows a schematic perspective view of only a portion of the overhead unit, i.e., only the variable frequency electronic control box 100 and the chassis 200 of the overhead unit. The inverter control box 100 is mounted on the inside of the chassis 200, and since the structure of the grounded metal cover is adopted to meet the requirement of the standard EN60335, so that the chassis 200 under the inverter control box 100 does not need to be grounded as in the prior art, the chassis 200 can be made of non-metal material, such as plastic or EPP foam, which can reduce the weight of the overhead unit and is beneficial for the installation of the overhead unit on the roof.
Furthermore, according to a variant of the invention, the mounting frame 5 may additionally be provided with a recess for receiving the rim of the metal cover 16, so that a good engagement of the mounting frame with the metal cover is obtained.
The embodiments shown in the figures and described above are only exemplary, and although they have been described with respect to an overhead unit according to the present invention using a grounding structure of a metal mesh, according to a variant of the present invention (not shown), the overhead unit may also use a grounding structure of a metal mesh that is not a mesh surface below the radiator (wherein the mesh surface is used for heat dissipation and the non-mesh surface is used for catching dripping water droplets).
Alternatively, the openings of the grid surface of the metal cover can be square holes, and the preferred opening size is also that the distance between two parallel edges of the square holes is preferably 3mm-10mm, and more preferably 5 mm. Alternatively, the openings of the grid surface of the metal cover can be circular holes, and the preferred opening size can be 3mm-10mm, more preferably 5mm, of the diameter.
Further, it should be understood that although the above figures exemplarily show that the metal cover is substantially rectangular parallelepiped, the metal cover may alternatively adopt other shape structures such as a hemisphere, a cone, and the like.
Although the above exemplary embodiments of the metal cover and the variable frequency electric control box of the overhead unit employ a fixing structure in which two hole sites are respectively provided on the first mounting frame and the second mounting frame and the mounting frame is provided with screw posts matched with the hole sites, any other number of hole sites and screw posts matched with the hole sites may alternatively be employed, such as one, three or more. Alternatively, the metal cover of the overhead unit according to the present invention may be mounted to the chassis by other fixing means such as a snap or an adhesive. In addition or alternatively, the connection between the metal cover and the ground wire may also be connected by other fixing means such as a snap or an adhesive.
Furthermore, the present invention also proposes an overhead air conditioner having the overhead unit of 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 (10)
1. An overhead unit of a variable frequency overhead air conditioner installed on a roof of a vehicle, the overhead unit comprising a chassis, the overhead unit being installed to an outer wall surface of the roof at an outer side of the chassis, a variable frequency electric control box being installed at an inner side of the chassis, wherein the variable frequency electric control box has a variable frequency electric control board and a radiator installed thereon, an opening being provided on a wall surface of the variable frequency electric control box, an installation frame being provided around the opening at an outer side of the wall surface, the variable frequency electric control board and the radiator being fixed by the installation frame, wherein the variable frequency electric control board is provided in the variable frequency electric control box, and the radiator protrudes from the opening out of the variable frequency electric control box wall surface, characterized in that a metal cover enclosing at least one cover surface of the radiator as a mesh surface is provided through the installation frame, wherein the metal cover is.
2. The overhead unit of claim 1, wherein the metal cage is a metal mesh cage.
3. The overhead unit of claim 1 or 2, wherein the metal cage grid openings are hexagonal holes.
4. The overhead unit of claim 3, wherein the distance between the two parallel sides of the hexagonal hole is 3mm-10 mm.
5. The overhead unit of claim 4, wherein the distance between the two parallel sides of the hexagonal hole is 5 mm.
6. The overhead unit of claim 1 or 2, wherein the metal cover is provided with a first mounting frame and a second mounting frame opposite to the first mounting frame, wherein the first mounting frame and the second mounting frame are provided with holes, and the mounting frame is provided with screw posts matching with the holes on the mounting frame, and the metal cover is fixed to the dcp box by screws through the holes of the mounting frame and the screw posts of the mounting frame.
7. The overhead unit of claim 6, wherein the metal cover is connected to a ground wire through a ground hole provided in one of the first or second mounting rims, wherein the ground wire has a hole site that mates with the ground hole, and wherein grounding of the metal cover is accomplished by screws through the ground hole and the hole site of the ground wire.
8. The overhead unit of claim 1 or 2 wherein the chassis of the overhead unit is a non-metallic chassis.
9. The overhead unit of claim 8, wherein the non-metallic chassis is a plastic chassis or an EPP foam chassis.
10. An overhead air conditioner, characterized in that it has an overhead unit according to any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113741.9U CN209888586U (en) | 2019-01-23 | 2019-01-23 | Top-mounted unit of variable-frequency top-mounted air conditioner mounted on roof of vehicle and top-mounted air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113741.9U CN209888586U (en) | 2019-01-23 | 2019-01-23 | Top-mounted unit of variable-frequency top-mounted air conditioner mounted on roof of vehicle and top-mounted air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN209888586U true CN209888586U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920113741.9U Active CN209888586U (en) | 2019-01-23 | 2019-01-23 | Top-mounted unit of variable-frequency top-mounted air conditioner mounted on roof of vehicle and top-mounted air conditioner |
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| CN (1) | CN209888586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455184A (en) * | 2020-11-30 | 2021-03-09 | 珠海格力电器股份有限公司 | Mounting assembly and vehicle-mounted air conditioner used for same |
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2019
- 2019-01-23 CN CN201920113741.9U patent/CN209888586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455184A (en) * | 2020-11-30 | 2021-03-09 | 珠海格力电器股份有限公司 | Mounting assembly and vehicle-mounted air conditioner used for same |
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