Grounding structure of courtyard machine

Abstract

The utility model provides a grounding structure of a courtyard machine, the courtyard machine comprises a chassis, an evaporator vertically arranged on the chassis, and an electric appliance box, two ends of the evaporator are provided with evaporator side plates, and a wind shield is arranged between the two ends of the evaporator. The grounding structure comprises a grounding continuity structure formed by sequentially and fixedly connecting an evaporator side plate, a wind shield and a chassis in a conductive mode, and the chassis is connected to a grounding piece on the electric appliance box through a grounding wire. According to the utility model, the evaporator side plate, the wind shield and the chassis are sequentially and fixedly connected in a conductive manner to form a grounding continuity structure, so that only one grounding wire needs to be led out from the chassis of the courtyard machine, and a courtyard machine pipeline can be reliably grounded after one grounding wire from the evaporator to the chassis is canceled.

Description

Technical Field

[0001] The utility model belongs to the field of air conditioners, and more specifically relates to a grounding structure of a ceiling air conditioner. Background Art

[0002] A ceiling air conditioner is also known as a ceiling air conditioner or a ceiling-mounted or embedded air conditioner. Because ceiling air conditioners save space and are aesthetically pleasing, they are widely used. As the indoor portion of the air conditioning unit, the ceiling air conditioner is connected to the outdoor unit via piping. Due to safety requirements, the indoor portion of the ceiling air conditioner piping needs to be reliably grounded. Traditional industry practice is to connect two grounding wires to the indoor portion of the ceiling air conditioner: one grounding wire extending from the evaporator side panel to the chassis, and the other grounding wire extending from the chassis to the electrical box. These two grounding wires are commonly referred to as the evaporator ground wire and the chassis ground wire. Because the screws on the evaporator side panel used to secure the evaporator ground wire are set vertically, securing the evaporator ground wire is difficult. Utility Model Content

[0003] The purpose of the utility model is to provide a grounding structure for a roof crane, so as to solve the problems in the prior art of requiring a large number of grounding wires and inconvenient operation when grounding a roof crane.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a grounding structure for a rooftop machine, wherein the rooftop machine includes a chassis, an evaporator uprightly arranged on the chassis, and an electrical box, evaporator side plates are installed at both ends of the evaporator, and a windshield is provided between the two ends of the evaporator, and the grounding structure includes: a grounding continuity structure formed by conductively and fixedly connecting the evaporator side plates, the windshield and the chassis in sequence, and the chassis is connected to the grounding plate on the electrical box through a grounding wire.

[0006] Furthermore, the evaporator side plate and the wind shield are conductively and fixedly connected by screws.

[0007] Furthermore, the evaporator side plate is provided with an inner folded edge for fitting the inner side surface of the evaporator, and the wind shield is provided with a baffle side folded edge for fitting the inner folded edge, and screw holes are provided on the inner folded edge and the baffle side folded edge.

[0008] Furthermore, the evaporator side plate and the wind shield are conductively and fixedly connected by a snap connection.

[0009] Furthermore, the evaporator side plate and the wind shield are conductively and fixedly connected by welding.

[0010] Furthermore, the windshield is conductively and fixedly connected to the chassis by screw connection.

[0011] Furthermore, the windshield is provided with a bottom fold of the baffle for fitting into the inner surface of the chassis, and the bottom fold of the baffle is provided with a screw hole.

[0012] Furthermore, the number of the bottom folded edges of the baffle is two.

[0013] Furthermore, the windshield is conductively and fixedly connected to the chassis by welding.

[0014] Furthermore, the evaporator side plates and the wind shield are sheet metal parts.

[0015] Compared with the prior art, the beneficial effect of the grounding structure of the overhead machine provided by the utility model is that: the utility model forms a grounding continuity structure by conductively and fixedly connecting the evaporator side plate, the wind shield and the chassis in sequence. Only one grounding wire needs to be led out from the chassis of the overhead machine, so that the overhead machine pipeline can be reliably grounded after eliminating the grounding wire from the evaporator to the chassis, thereby reducing the number of ground wires of the overhead machine and eliminating the setting of the evaporator ground wire routing layout, reducing costs, reducing processing steps, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A perspective view of a roof hoist provided in a preferred embodiment of the present utility model, with some structures not shown;

[0018] Figure 2 A side view of an evaporator side plate provided in a preferred embodiment of the present utility model;

[0019] Figure 3 A three-dimensional diagram of an evaporator side plate provided in a preferred embodiment of the present utility model;

[0020] Figure 4 A front view of a windshield provided in a preferred embodiment of the present utility model;

[0021] Figure 5 A bottom view of a windshield provided in a preferred embodiment of the present utility model;

[0022] Figure 6 A three-dimensional diagram of the evaporator side plate and the evaporator after being conductively fixedly connected to each other in a preferred embodiment of the present invention;

[0023] Figure 7 A three-dimensional diagram of the evaporator side plate and the windshield plate after being conductively fixedly connected according to the preferred embodiment of the present invention;

[0024] Among them, the main marks of the drawings in the figure are:

[0025] 1. Chassis;

[0026] 2. Evaporator;

[0027] 3. Evaporator side plate; 31. Avoidance hole; 32. Inner folding edge;

[0028] 4. Wind deflector; 41. Side fold of deflector; 42. Bottom fold of deflector;

[0029] 5. Screw holes;

[0030] 6. Screws;

[0031] 7. Grounding hole. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The ceiling unit is also called a ceiling unit or a ceiling-mounted or embedded air conditioner. Since the ceiling unit can save space and is more beautiful, it is widely used. As the indoor part of the air-conditioning unit, the ceiling unit is connected to the outdoor unit through a pipe. Based on safety requirements, the indoor part of the ceiling unit needs to be reliably grounded. The traditional industry practice is to lead two ground wires to the indoor part of the ceiling unit, namely the evaporator ground wire and the chassis ground wire. The evaporator ground wire is led out from the evaporator side panel and connected to the chassis, and the chassis ground wire is led out from the chassis and connected to the electrical box. Since the screws on the evaporator side panel for fixing the evaporator ground wire are set vertically, it is difficult to operate the evaporator ground wire when fixing it. Based on this, the utility model cancels the evaporator ground wire through the grounding continuity design in the ceiling unit, reduces the number of ceiling unit ground wires, and also eliminates the setting of the evaporator ground wire wiring layout, thereby reducing the ceiling unit processing procedures, reducing costs, and improving production efficiency.

[0034] Please also refer to Figures 1 to 7 The utility model provides a grounding structure for a rooftop hood, wherein the rooftop hood includes a chassis 1, an evaporator 2 vertically arranged on the chassis 1, and an electrical box, evaporator side panels 3 are installed at both ends of the evaporator 2, and a windshield 4 is provided between the two ends of the evaporator 2; the grounding structure includes: a grounding continuity structure formed by conductively and fixedly connecting the evaporator side panels 3, the windshield 4 and the chassis 1 in sequence, and the chassis 1 is connected to the grounding plate on the electrical box through a grounding wire.

[0035] The advantage of this design is that a grounding continuity structure is formed by conductively and fixedly connecting the evaporator side plate 3, the windshield 4 and the chassis 1 in sequence. Only one grounding wire needs to be led out from the chassis 1 of the overhead crane, so that the overhead crane pipeline can be reliably grounded after eliminating the grounding wire from the evaporator 2 to the chassis 1.

[0036] In some embodiments of the present invention, Figure 1 As shown, the evaporator 2 is internally provided with multiple evaporation pipelines. An arc-shaped connecting pipeline is installed at each end of the evaporator 2 to connect the two evaporation pipelines, as well as a fluid input pipeline or fluid output pipeline for connecting only one evaporation pipeline. The evaporator 2 has an arc-shaped structure, and the two ends of the evaporator 2 are connected by a windshield 4. The windshield 4 and the inner side of the evaporator 2 enclose an air duct.

[0037] In an optional embodiment of the present invention, Figure 2 、 Figure 3 As shown, the evaporator side plate 3 is provided with an avoidance hole 31 for the passage of the overhead machine pipeline (including the aforementioned arc-shaped connecting pipeline, fluid input pipeline and fluid output pipeline, etc.). The two evaporator side plates 3 are fixed to the two ends of the evaporator 2 by means of pipeline expansion fixing, so that the evaporator side plates 3 and the overhead machine pipeline are tightened while ensuring the grounding continuity between the evaporator side plates 3 and the overhead machine pipeline.

[0038] In an optional embodiment of the present invention, the evaporator side plate 3 and the wind shield 4 are electrically connected and fixed by screw connection. When the evaporator side plate 3 and the wind shield 4 are fastened by screws 6, ground continuity between the evaporator side plate 3 and the wind shield 4 is achieved.

[0039] Preferably, if Figures 1 to 4 As shown, the evaporator side panel 3 is provided with an inner folded edge 32 for contacting the inner side surface of the evaporator 2, and the windshield 4 is provided with a baffle side folded edge 41 for contacting the inner folded edge 32. The inner folded edge 32 and the baffle side folded edge 41 are provided with screw holes 5. Screws 6 are inserted through the screw holes 5 of the inner folded edge 32 and the baffle side folded edge 41 simultaneously, thereby achieving a conductive and fixed connection between the evaporator side panel 3 and the windshield 4 via a screw connection.

[0040] It should be understood that there are two evaporator side panels 3 and one windshield 4. Each evaporator side panel 3 is provided with an inner hem 32 and an outer hem on its front and back sides, respectively. The inner hem 32 is designed to fit the inside of the evaporator 2, while the outer hem is designed to fit the outside of the evaporator 2. The inner hem 32 of each evaporator side panel 3 is provided with a screw hole 5, while the outer hem does not need to be provided with a screw hole 5. The windshield 4 is provided with side hems 41 on both its left and right sides, each of which has a screw hole 5.

[0041] In an optional embodiment of the present invention, the evaporator side plate 3 and the wind shield 4 are electrically connected and fixed by a snap connection. When the evaporator side plate 3 and the wind shield 4 are snap connected, ground continuity between the evaporator side plate 3 and the wind shield 4 is achieved.

[0042] It should be understood that there are two evaporator side panels 3 and one windshield 4. Each evaporator side panel 3 is provided with an inner folded edge 32 and an outer folded edge on its front and rear sides, respectively. The inner folded edge 32 is designed to fit the inner side of the evaporator 2, while the outer folded edge is designed to fit the outer side of the evaporator 2. Each evaporator side panel 3 is provided with a conductive elastic snap on its inner folded edge 32. The windshield 4 is provided with baffle side folds 41 on its left and right sides, each of which has a groove. The conductive elastic snaps snap into place in the corresponding grooves, achieving a conductive, fixed connection between the evaporator side panel 3 and the windshield 4.

[0043] In an alternative embodiment of the present invention, the evaporator side panels 3 and the windshield 4 are electrically conductively fixedly connected by welding. This welding connection also ensures ground continuity between the evaporator side panels 3 and the windshield 4. Furthermore, welding requires minimal structural modification to the evaporator side panels 3 and the windshield 4, resulting in greater cost savings.

[0044] In an optional embodiment of the present invention, the windshield 4 is electrically connected to the chassis 1 by screws 6. When the windshield 4 and the chassis 1 are fastened together by screws 6, ground continuity between the windshield 4 and the chassis 1 is achieved.

[0045] Preferably, if Figure 1 、 Figure 5 As shown, the windshield 4 is provided with a bottom flange 42 for contacting the inner surface of the chassis 1. The bottom flange 42 is provided with screw holes 5, and the chassis 1 also has screw holes 5. Screws 6 are inserted through the screw holes 5 of the bottom flange 42 and the chassis 1 simultaneously, thereby achieving a conductive and fixed connection between the windshield 4 and the chassis 1 via screw connection.

[0046] The number of the baffle bottom folded edges 42 can be set to be multiple. Preferably, the number of the baffle bottom folded edges 42 is two.

[0047] In an alternative embodiment of the present invention, the windshield 4 is electrically and securely connected to the chassis 1 via welding. This welding connection also ensures ground continuity between the windshield 4 and chassis 1. Furthermore, welding requires minimal structural modification to the windshield 4 and chassis 1, resulting in greater cost savings.

[0048] In some embodiments of the present invention, the evaporator side panels 3 , the windshield 4 and the chassis 1 are made of conductive materials, wherein the evaporator side panels 3 and the windshield 4 are sheet metal parts.

[0049] Preferably, if Figure 1 As shown, the windshield 4 is a sheet metal part with an irregular structure and multiple folds. In actual applications, the structural shape of the windshield 4 can be designed to match the structural shape of the evaporator 2. The evaporator 2 provided by the utility model can adopt a special evaporator structure. The windshield 4 can be designed to match the actual needs. While the two ends of the evaporator 2 are connected through the windshield 4, sufficient installation space for the overhead pipe is guaranteed.

[0050] For a better understanding, let’s combine Figures 1 to 7 A complete description of the skylight machine and its grounding structure provided by the preferred embodiment of the utility model is given below:

[0051] The ceiling machine includes a chassis 1, an evaporator 2 upright on the chassis 1, and an electrical box located above the evaporator 2. Evaporator side panels 3 are installed at both ends of the evaporator 2, and a windshield 4 is provided between the two ends of the evaporator 2. The evaporator side panels 3, the windshield 4 and the chassis 1 are all sheet metal parts.

[0052] The evaporator side plate 3 is fixed to both ends of the evaporator 2. The evaporator side plate 3 is provided with an avoidance hole 31 for the passage of the ceiling machine pipeline. The front and rear sides of the evaporator side plate 3 are respectively provided with an inner folding edge 32 and an outer folding edge. The inner folding edge 32 is used to fit the inner side of the evaporator 2, and the outer folding edge is used to fit the outer side of the evaporator 2. Only the inner folding edge 32 is provided with a screw hole 5.

[0053] The windshield 4 has an irregular, multi-edge structure, with side hems 41 on each side. These hems 41 are designed to mate with the inner hems 32 of the evaporator side panels 3 and have screw holes 5 formed in them. The bottom of the windshield 4 has two spaced-apart bottom hems 42 formed at intervals. These hems 42 mate with the inner surface of the chassis 1 and have screw holes 5 formed in them. The chassis 1 also has screw holes 5 formed in these hems.

[0054] The chassis 1 is provided with a grounding hole 7 for leading out a grounding wire (ie, a chassis ground wire).

[0055] After the overhead unit is assembled, the evaporator side panels 3 and windshield 4 are electrically connected and fixed using screws. Windshield 4 is also electrically connected and fixed to chassis 1 using screws. This creates a grounding continuity structure through the sequential electrically connected evaporator side panels 3, windshield 4, and chassis 1. Only one grounding wire is required for the overhead unit. One end of the grounding wire is fixed to chassis 1, and the other end is connected to the grounding plate on the electrical box. This grounding wire is also called the chassis ground wire, and the engineering ground wire is connected to the grounding plate on this electrical box. The overhead unit piping grounding path is: overhead unit piping → evaporator side panels 3 → windshield 4 → chassis 1 → grounding plate on the electrical box → power ground. This path ensures reliable grounding of the overhead unit piping.

[0056] The utility model can reduce a grounding wire from the evaporator to the chassis in the skylight machine, thereby reducing costs, reducing processing steps, and improving production efficiency.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A grounding structure for a roof crane, wherein: The ceiling machine includes a chassis, an evaporator upright on the chassis, and an electrical box. Evaporator side panels are installed at both ends of the evaporator, and a wind shield is provided between the two ends of the evaporator. It is characterized in that the grounding structure includes: a grounding continuity structure formed by conductively and fixedly connecting the evaporator side panels, the wind shield and the chassis in sequence, and the chassis is connected to the grounding plate on the electrical box through a grounding wire.

2. The grounding structure of the overhead crane according to claim 1, characterized in that: The evaporator side plate and the wind shield are electrically and fixedly connected by screw connection.

3. The grounding structure of the overhead crane according to claim 2, characterized in that: The evaporator side plate is provided with an inner folded edge for fitting the inner side surface of the evaporator, and the wind shield is provided with a baffle side folded edge for fitting the inner folded edge. The inner folded edge and the baffle side folded edge are provided with screw holes.

4. The grounding structure of the overhead crane according to claim 1, wherein: The evaporator side plate and the wind shield are electrically and fixedly connected by a snap connection.

5. The grounding structure of the overhead crane according to claim 1, characterized in that: The evaporator side plate and the wind shield are electrically and fixedly connected by welding.

6. The grounding structure of a roof hoist according to claim 1, wherein: The windshield is electrically and fixedly connected to the chassis by screw connection.

7. The grounding structure of a roof hoist according to claim 6, wherein: The windshield is provided with a baffle bottom fold for fitting into the inner surface of the chassis, and the baffle bottom fold is provided with a screw hole.

8. The grounding structure of a roof hoist according to claim 7, wherein: The number of the bottom folding edges of the baffle is two.

9. The grounding structure of a roof hoist according to claim 1, wherein: The windshield is electrically and fixedly connected to the chassis by welding.

10. The grounding structure of a roof hoist according to claim 1, wherein: The evaporator side plates and the wind shield are sheet metal parts.

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