Fixing assembly for maintenance plate of vertical box body of air conditioning unit
By combining a structure of rivet nuts, nylon washers, and semi-threaded bolts with an insulation layer design, the problems of increased costs and low efficiency of maintenance doors for vertical air conditioning units are solved. This achieves flexible fixing and prevents cold bridging, improving maintenance efficiency and reducing costs.
Patent Information
- Application Number
- CN202423178865.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Due to space constraints, traditional access doors for vertical air conditioning units increase costs and reduce maintenance efficiency, especially in the maintenance of fan motors.
The system employs a combination of rivet nuts, nylon washers, semi-threaded bolts, and door panel fixing buttons, along with an insulation layer design, to achieve flexible fixing and sealing of the inspection panel and prevent cold bridging.
It offers high flexibility, secure fixing, and protection against cold bridging, making full use of the enclosure space, improving maintenance efficiency, and reducing costs.
Smart Images

Figure CN223740957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air conditioning unit technical field, especially a kind of vertical box maintenance plate fixing assembly for air conditioning unit. BACKGROUND
[0002] In modern air conditioning equipment, the inside of the box usually contains several key components, such as filters, cooling coils and fan motors. The need for regular maintenance and repair of these components cannot be ignored, so appropriate access panels must be provided in the design to facilitate inspection and replacement by maintenance personnel. However, due to the specific structural limitations of vertical units, especially in the maintenance of fan motors, additional access doors are often required.
[0003] For larger vertical units, the upper space is relatively sufficient, and an access door can be easily installed on the top. However, in small vertical units, due to limited space, the unit often needs to be raised to install the access door. This solution not only increases costs, but also affects the actual installation space of the customer. Moreover, the door frame structure of the access door limits the available maintenance space, and the actual maintenance space of the access door is usually 50mm less than the actual opening space, which further reduces the maintenance efficiency.
[0004] In view of the above problems, in order to improve the convenience and effectiveness of maintenance, the present application proposes a maintenance plate fixing form that is highly flexible, firmly fixed, prevents cold bridges, fully utilizes the maintenance space of the box panel, and reduces costs. This form can replace the traditional access door, thereby solving the various limitations faced by vertical units during maintenance. SUMMARY
[0005] The purpose of the utility model is to provide a vertical box maintenance plate fixing assembly for air conditioning unit, to solve the defect that additional access doors are often required due to the specific structural limitations of vertical units, especially in the maintenance of fan motors.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a vertical box maintenance plate fixing assembly for air conditioning unit, comprising an air conditioner box inner plate and a maintenance plate; the outer side of the air conditioner box inner plate is provided with a maintenance plate, and the connection part of the maintenance plate and the air conditioner box inner plate is provided with an auxiliary structure; the upper and lower ends of the maintenance plate are provided with a fixing structure; the fixing structure comprises a rivet nut, a nylon gasket, a half-thread bolt and a door plate fixing button; the rivet nut is opened in the inside of the air conditioner box inner plate; the outer side of the air conditioner box inner plate is provided with a nylon gasket; one side of the nylon gasket is provided with a door plate fixing button; one end of the half-thread bolt penetrates the nylon gasket and the door plate fixing button and is inserted into the inside of the rivet nut.
[0007] Preferably, the outer side of the half-threaded bolt is provided with external threads, the inner side of the rivet nut is provided with internal threads, and the half-threaded bolt and the rivet nut are in threaded connection.
[0008] Preferably, the inner diameter of the door plate fixing knob is larger than the outer diameter of the half-threaded bolt, and the half-threaded bolt and the door plate fixing knob form a plug-in structure.
[0009] Preferably, the door plate fixing knob is provided with four groups, and the four groups of door plate fixing knobs are symmetrically distributed around the access plate.
[0010] Preferably, the auxiliary structure includes a first heat preservation layer, a tuyere support and a second heat preservation layer, the first heat preservation layer is installed around one side of the access plate, the second heat preservation layer is installed around one side of the access plate, and the tuyere support is installed around the inside of one side of the inner plate of the air conditioner box.
[0011] Preferably, the second heat preservation layer is provided with multiple groups, and the multiple groups of second heat preservation layers are symmetrically distributed around the access plate.
[0012] Preferably, the material of the first heat preservation layer and the second heat preservation layer is thermal insulation cotton.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1. Strong flexibility:
[0015] The access plate fixing form of the technology is that after the rivet nut is pulled on the pull rivet hole reserved in the inner plate of the air conditioner box, the access plate is placed in the access plate hole of the inner plate of the air conditioner box, and the half-threaded bolt is sequentially fixed through the door plate fixing knob, the nylon gasket and the rivet nut. The height of the nylon gasket here can be freely adjusted according to the actual structure and size of the access plate, and the size of the access plate is allowed to be adjusted and optimized according to the actual needs of different models, thereby providing higher flexibility to adapt to various types of fan motors and other maintenance requirements of equipment that needs to be overhauled.
[0016] 2. Firm fixation:
[0017] Compared with the traditional access plate, the access plate fixing mode of the technology adopts a more stable fixing mode. The nylon gasket is combined with the door plate fixing knob and is pressed on the access plate with the second heat preservation layer. The external half-threaded bolt fixes the access plate firmly on the inner plate of the air conditioner box through the internal rivet nut, effectively preventing deformation or loosening.
[0018] 3. Cold bridge prevention and tight sealing:
[0019] The fixing mode of the maintenance plate adopts half-threaded bolts and rivet nuts, and the air layer formed between the two and the foaming material around effectively constitute a heat insulation layer, preventing cold bridges, and meanwhile, the second heat preservation layer is pasted around the maintenance plate, the sealing effect is better, and the cold bridge effect is also achieved to a certain extent.
[0020] 4. Make full use of the maintenance space of the box plate:
[0021] Through the unique design, the novel maintenance plate fixing form of the air conditioner box improves the utilization rate of the inner plate of the air conditioner box, as long as the space above the vertical unit can accommodate the maintenance plate hole, the space can be used for actual maintenance, so that the actual maintenance size is equal to the opening size, thereby reducing the waste of space and materials, and realizing more compact design. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a front view structure schematic diagram of the utility model;
[0023] Figure 2 It is a front view structure schematic diagram of the utility model;
[0024] Figure 3 It is a nylon gasket structure schematic diagram of the utility model;
[0025] Figure 4 It is a half-threaded bolt structure schematic diagram of the utility model;
[0026] Figure 5 It is a door plate fixing button structure schematic diagram of the utility model.
[0027] In the drawing: 1, air conditioner box inner plate; 2, maintenance plate; 3, auxiliary structure; 301, first heat preservation layer; 302, air port support; 303, second heat preservation layer; 4, fixed structure; 401, rivet nut; 402, nylon gasket; 403, half-threaded bolt; 404, door plate fixing button. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0029] The embodiment of the utility model provides a kind of for air conditioning unit vertical box maintenance plate fixing assembly, such as Figures 1-5As shown, including air conditioner box inner plate 1 and access panel 2; The outer side of the air conditioner box inner plate 1 is provided with the access panel 2, the connecting part of the access panel 2 and the air conditioner box inner plate 1 is provided with auxiliary structure 3, the upper and lower ends of the access panel 2 are provided with fixed structure 4; Fixed structure 4 includes rivet nut 401, nylon gasket 402, half-thread bolt 403 and door plate fixing button 404, rivet nut 401 is opened in the inside of air conditioner box inner plate 1, the outside of air conditioner box inner plate 1 is provided with nylon gasket 402, one side of nylon gasket 402 is provided with door plate fixing button 404, one end of half-thread bolt 403 penetrates nylon gasket 402 and door plate fixing button 404 and is inserted into the inside of rivet nut 401, the outside of half-thread bolt 403 is provided with external thread, the inside of rivet nut 401 is provided with internal thread, half-thread bolt 403 and rivet nut 401 form threaded connection, the inner diameter of door plate fixing button 404 is greater than the outer diameter of half-thread bolt 403, half-thread bolt 403 and door plate fixing button 404 form insertion structure, door plate fixing button 404 is provided with four groups, four groups of door plate fixing button 404 are symmetrically distributed around the access panel 2, auxiliary structure 3 includes first thermal insulation layer 301, air port support 302 and second thermal insulation layer 303, first thermal insulation layer 301 is installed at both ends of one side of access panel 2, second thermal insulation layer 303 is installed around one side of access panel 2, air port support 302 is installed around the inside of one side of air conditioner box inner plate 1, second thermal insulation layer 303 is provided with multiple groups, multiple groups of second thermal insulation layer 303 are symmetrically distributed around the access panel 2, the material of first thermal insulation layer 301 and second thermal insulation layer 303 is thermal insulation cotton.
[0030] Specifically, in this embodiment: in use, the fixed form of the access panel 2 means that after the rivet nut 401 is pulled on the pull rivet hole reserved in the air conditioner box inner plate 1, the access panel 2 is placed in the access panel hole in the inside of the air conditioner box inner plate 1, and then the half-thread bolt 403 is sequentially passed through the door plate fixing button 404, the nylon gasket 402 and the rivet nut 401, so that the fixing is completed, the height of the nylon gasket 402 here can be freely adjusted according to the actual structure and size of the access panel 2, and the size of the access panel 2 allows size adjustment and optimization according to the actual needs of different models, thereby providing higher flexibility to adapt to various types of fan motors and other maintenance requirements of equipment that needs to be overhauled;
[0031] Compared with the traditional access panel 2, the fixing mode of the access panel 2 of the present technology adopts a more stable fixing mode, the combination of the nylon gasket 402 and the door plate fixing button 404 is pressed on the access panel 2 with the second thermal insulation layer 303, and the external half-thread bolt 403 fixes the access panel 2 on the air conditioner box inner plate 1 through the internal rivet nut 401, which can effectively prevent deformation or loosening;
[0032] The fixing mode of the maintenance plate 2 adopts the semi-threaded bolt 403 connected with the rivet nut 401, the air layer formed between the semi-threaded bolt 403 and the rivet nut 401 and the foaming material around the semi-threaded bolt 403 and the rivet nut 401 effectively constitute a heat insulation layer, preventing cold bridge, meanwhile, the second heat insulation layer 303 is pasted around the maintenance plate 2, the sealing effect is better, and the cold bridge is prevented to a certain extent;
[0033] Through the unique design, the fixing mode of the novel maintenance plate 2 improves the utilization rate of the air conditioner box inner plate 1, as long as the space above the vertical unit can accommodate the maintenance plate hole, the space can be used for actual maintenance, so that the actual maintenance size is equal to the opening size, thereby reducing the waste of space and material, and realizing a more compact design.
[0034] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A maintenance plate fixing assembly for an air conditioning unit vertical cabinet, comprising an air conditioner cabinet inner plate (1) and a maintenance plate (2); Its characterized in that: The outer side of the air conditioner cabinet inner plate (1) is provided with the maintenance plate (2), and the connecting part of the maintenance plate (2) and the air conditioner cabinet inner plate (1) is provided with an auxiliary structure (3), and the upper and lower ends of the maintenance plate (2) are provided with a fixing structure (4); The fixing structure (4) comprises a rivet nut (401), a nylon gasket (402), a half-thread bolt (403) and a door plate fixing knob (404), the rivet nut (401) is opened in the inner part of the air conditioner cabinet inner plate (1), the outer side of the air conditioner cabinet inner plate (1) is provided with the nylon gasket (402), one side of the nylon gasket (402) is provided with the door plate fixing knob (404), and one end of the half-thread bolt (403) penetrates the nylon gasket (402) and the door plate fixing knob (404) and is inserted into the inner part of the rivet nut (401).
2. The access panel securing assembly for a packaged air conditioning unit of claim 1, wherein: The outer side of the half-thread bolt (403) is provided with external threads, the inner side of the rivet nut (401) is provided with internal threads, and the half-thread bolt (403) and the rivet nut (401) are in threaded connection.
3. The access panel securing assembly for a packaged air conditioning unit of claim 2, wherein: The inner diameter of the door plate fixing knob (404) is greater than the outer diameter of the half-thread bolt (403), and the half-thread bolt (403) and the door plate fixing knob (404) form an insertion structure.
4. The access panel securing assembly for a packaged air conditioning unit of claim 1, wherein: The door plate fixing knob (404) is provided with four groups, and the four groups of door plate fixing knobs (404) are symmetrically distributed around the maintenance plate (2).
5. The access panel securing assembly for a packaged air conditioning unit of claim 4, wherein: The auxiliary structure (3) comprises a first heat preservation layer (301), an air inlet support (302) and a second heat preservation layer (303), the first heat preservation layer (301) is installed around one side of the maintenance plate (2), the second heat preservation layer (303) is installed around one side of the maintenance plate (2), and the air inlet support (302) is installed around the inner part of one side of the air conditioner cabinet inner plate (1).
6. The access panel securing assembly for a packaged air conditioning unit of claim 5, wherein: The second heat preservation layer (303) is provided with multiple groups, and the multiple groups of second heat preservation layers (303) are symmetrically distributed around the maintenance plate (2).
7. The access panel securing assembly for a packaged air conditioning unit of claim 5, wherein: The materials of the first heat preservation layer (301) and the second heat preservation layer (303) are heat preservation cotton.