Fresh air frequency conversion control device

Abstract

The utility model discloses a fresh air frequency conversion control device, and relates to the field of frequency conversion switch controllers. The device comprises a device shell and a bottom plate, a side plate is fixedly arranged on one side, close to the device shell, of the bottom plate along the periphery, a spring clamping piece is arranged on the side plate, the device shell is clamped with the bottom plate through the spring clamping piece and a clamping groove, and a clamping mechanism is arranged on one side of the spring clamping piece. The limiting strips slide in the sliding grooves, when the extending ends of the limiting strips are clamped with the clamping blocks on the inner sides of the side plates, an additional fixing mechanism is formed, connection between the device shell and the bottom plate is further fixed, the whole device is more stable, meanwhile, the limiting strips further play a role in limiting the spring clamping pieces, and the service life of the device is prolonged. The possibility of deformation of the spring clamping sheet caused by external acting force is reduced, so that the mounting structure stability of the device shell and the bottom plate is greatly improved, and the reliability and durability of the device in the long-term use process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of frequency conversion switch controller, concretely is a fresh air frequency conversion control device. BACKGROUND

[0002] Fresh air frequency conversion switch controller is a kind of intelligent equipment, can monitor and adjust indoor air quality in real time, according to the intelligent control of indoor and outdoor environmental parameters, the operation of fresh air system, it uses frequency conversion technology, adjusts wind speed and power according to demand, realizes energy saving and high efficiency, controller also has the intelligent function such as use time reminder, improves the use convenience, through manual or automatic mode, user can easily adjust fresh air introduction amount, ensure that indoor air is fresh and comfortable.

[0003] The fresh air frequency conversion switch controller of the prior art is usually divided into a bottom mounting plate and an outer buckle shell during installation and use, and the bottom mounting plate and the outer buckle shell are connected and fixed by a snap buckle connection, which is difficult to maintain the installation stability during actual use, and the outer buckle shell is easily detached due to the bumping of external objects, reducing the installation and use convenience of the switch controller. UTILITARIAN CONTENT

[0004] Therefore, the utility model aims at providing a fresh air frequency conversion control device to solve the technical problem of insufficient stability of single snap buckle connection, which may cause the outer buckle shell to fall off.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fresh air frequency conversion control device, comprising a device shell and a bottom plate, the side of the bottom plate close to the device shell is fixedly provided with a side plate along the outer periphery, a spring card is arranged on the side plate, the device shell is snap-fit with the bottom plate through the spring card and a clamping groove, and a clamping mechanism is arranged on one side of the spring card.

[0006] The clamping mechanism comprises a sliding slot, a limiting strip is slidably connected to the inner side of the sliding slot, a protruding block is fixedly connected to the top of the limiting strip on one side and penetrates the sliding slot, a clamping block is fixedly connected to the inner side of the side plate and the corresponding position of the extending end of the limiting strip, and the clamping block is snap-fit with the limiting strip.

[0007] By adopting the above technical scheme, the device shell and the bottom plate are quickly snap-fit through the cooperation of the spring card and the clamping groove, greatly improving the installation efficiency.

[0008] Further, the limiting strip is located on the inner side of the spring card, and the limiting strip abuts against the spring card.

[0009] By adopting the above technical scheme, the design of the limiting strip being located at the inner side of the spring card effectively limits the deformation range of the spring card, and prevents the spring card from being excessively deformed due to excessive external force, thereby preventing the device shell from falling off.

[0010] Further, the convex block is a rectangular block structure, and a plurality of anti-skid teeth are arranged equidistantly on the surface.

[0011] By adopting the above technical scheme, the convex block is the force point of the operator on the limiting strip, and the rectangular block structure makes the convex block have a large contact area and can bear the force applied by the operator, thereby ensuring that the limiting strip can stably slide in the sliding groove.

[0012] Further, an air slot is formed on the surface of the device shell and opposite to the position of the convex block, so as to provide a movement space for the convex block.

[0013] By adopting the above technical scheme, the air slot provides sufficient movement space for the convex block, so that the convex block can smoothly slide and drive the limiting strip to be clamped or separated from the clamping block during the installation or disassembly process, thereby greatly improving the convenience of operation.

[0014] Further, the bottom plate is bolted with a reserved installation slot outside, and a plurality of wiring terminals are arranged equidistantly on the back of the bottom plate.

[0015] By adopting the above technical scheme, the device can be firmly fixed at a specified position, and is not prone to shaking or falling off, thereby improving the installation stability of the device.

[0016] Further, a display panel is arranged on the surface of the device shell, a PLC control panel is installed on the inner side of the device shell, and the display panel is electrically connected with a fresh air system fan.

[0017] By adopting the above technical scheme, the display panel enables the user to intuitively understand the working state and operating parameters of the device, thereby facilitating the user to monitor and manage the device, and at the same time, the electrical connection between the display panel and the fresh air system fan realizes real-time monitoring and control of the running state of the fan, thereby improving the automation degree and intelligent level of the fresh air system.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] The utility model discloses a carding mechanism, first, the limit strip slides in the sliding slot, when its extension end and the clamping block of the inner side of the baffle are carded, formed an additional fixed mechanism, further fixed the connection of device shell and bottom plate, make the whole device more stable, simultaneously, the limit strip still plays the limiting action to spring card, effectively limited the deformation range of spring card, reduced the possibility that spring card deformed by external force, thereby greatly improved the installation structure stability of device shell and bottom plate, ensured the reliability and durability of device in the long -term use process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the back structure schematic diagram of the utility model;

[0022] Figure 3 It is the explosion structure schematic diagram of the utility model;

[0023] Figure 4 It is the inside structure schematic diagram of device shell of the utility model;

[0024] Figure 5 It is the utility model Figure 3 The enlarged structure schematic diagram of A place in the utility model.

[0025] In the drawing: 1, device shell;2, bottom plate;3, wiring end;4, baffle;5, spring card;6, card slot;7, carding mechanism;701, sliding slot;702, limit strip;703, protruding block;704, clamping block;705, empty slot;8, display panel. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiment of the utility model will be described clearly and completely in combination with the drawings in the embodiment of the utility model. The embodiment described below is exemplary, and is only used for explaining the utility model, and can not be understood as the limitation of the utility model. Example one:

[0027] A kind of fresh air variable frequency control device, as shown in Figures 1-5 It includes device shell 1 and bottom plate 2, and bottom plate 2 is close to the side of device shell 1 and is fixedly arranged with baffle 4 along periphery, baffle 4 is provided with spring card 5, device shell 1 is carded with bottom plate 2 by spring card 5, card slot 6, and one side of spring card 5 is provided with carding mechanism 7;

[0028] The engaging mechanism 7 comprises a sliding groove 701, the inner side of the sliding groove 701 is slidingly connected with a limiting strip 702, one side of the top of the limiting strip 702 is penetratingly connected with a protruding block 703 through the sliding groove 701 and is fixedly connected with the protruding block 703, the inner side of the side plate 4 and the corresponding position of the extending end of the limiting strip 702 are fixedly connected with a clamping block 704, the clamping block 704 is engaged with the limiting strip 702, the new air variable frequency control device realizes the quick engagement of the device shell 1 and the bottom plate 2 through the cooperation of the spring clamping piece 5 and the clamping groove 6, greatly improves the installation efficiency, at the same time, the setting of the engaging mechanism 7 further enhances the stability of the connection, ensures that the device will not appear loose or fall off in the long-term use process, effectively improves the overall reliability and durability of the device.

[0029] Referring to Figure 2 , Figure 3 , Figure 5 , the limiting strip 702 is located on the inner side of the spring clamping piece 5, and the limiting strip 702 is in abutment with the spring clamping piece 5, the design that the limiting strip 702 is located on the inner side of the spring clamping piece 5 effectively limits the deformation range of the spring clamping piece 5, prevents the device shell 1 from falling off due to excessive deformation of the spring clamping piece 5 caused by excessive external force, at the same time, the abutment of the limiting strip 702 and the spring clamping piece 5 also enhances the overall stability of the engaging mechanism 7, makes the connection of the device shell 1 and the bottom plate 2 more firm and reliable, improves the shock resistance and service life of the device.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , the protruding block 703 is a rectangular block structure, and a plurality of anti-skid teeth are equidistantly arranged on the surface of the protruding block 703, the protruding block 703 is the force point of the operator on the limiting strip 702, the rectangular block structure makes the protruding block 703 have a larger contact area, can bear the force applied by the operator, ensures that the limiting strip 702 can stably slide in the sliding groove 701, at the same time, the anti-skid teeth equidistantly arranged on the surface of the protruding block 703 increase the friction force between the hands of the operator and the protruding block 703, so that the operator can more easily and accurately control the movement of the limiting strip 702 when sliding the limiting strip 702, realizes the quick sliding of the limiting strip 702, improves the convenience and efficiency of the operation.

[0031] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4The surface of the device shell 1 is provided with a hollow groove 705 opposite to the position of the protrusion 703, so as to provide a movement space for the protrusion 703. The hollow groove 705 provides sufficient movement space for the protrusion 703, so that the protrusion 703 can smoothly slide and drive the limiting strip 702 to be clamped or separated from the clamping block 704 during installation or disassembly, greatly improving the convenience of operation. At the same time, the existence of the hollow groove 705 also avoids the interference or wear between the protrusion 703 and the device shell 1 under stress, protects the shell structure of the device, and prolongs the service life of the device. Embodiment two:

[0032] Referring to Figure 1 , Figure 2 , Figure 3 The bottom plate 2 is bolted with the reserved mounting groove of the outside, and the back of the bottom plate 2 is equidistantly arranged with a plurality of terminal blocks 3, so that the device can be firmly fixed at the specified position and is not easy to shake or fall off, improving the installation stability of the device. At the same time, the equidistant arrangement of the terminal blocks 3 on the back of the bottom plate 2 facilitates the connection and fixation with the external circuit, making the wiring of the device more neat and orderly, reducing the risk of wiring error or looseness, and improving the safety and reliability of the device.

[0033] Referring to Figure 1 , Figure 3 The surface of the device shell 1 is provided with a display panel 8, and the inner side of the device shell 1 is provided with a PLC control panel. The display panel 8 is electrically connected with the fresh air system fan. The arrangement of the display panel 8 enables the user to intuitively understand the working state and operating parameters of the device, facilitating the user to monitor and manage the device. At the same time, the electrical connection of the display panel 8 with the fresh air system fan realizes real-time monitoring and control of the fan operating state, improving the automation degree and intelligent level of the fresh air system. In addition, the installation of the PLC control panel also makes the control of the device more accurate and stable, ensuring the normal operation and good performance of the fresh air system.

[0034] The implementation principle of the embodiment is that the device shell 1 is connected and fixed through the side plate 4 on the bottom plate 2. The spring card 5 arranged on the side plate 4 cooperates with the clamping groove 6 on the device shell 1 to preliminarily realize the clamping of the device shell 1 and the bottom plate 2. In order to enhance the stability of the connection, the clamping mechanism 7 is also arranged on the side plate 4. The limiting strip 702 slides in the sliding groove 701, and when the extension end is clamped with the clamping block 704 on the inner side of the side plate 4, the connection between the device shell 1 and the bottom plate 2 is further fixed. Due to the limiting of the limiting strip 702 to the spring card 5, the possibility of deformation of the spring card 5 caused by external force is reduced, so as to improve the stability of the installation structure of the device shell 1 and the bottom plate 2.

[0035] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A fresh air variable frequency control device, characterized in that: The utility model provides a device shell (1) and bottom plate (2) including, bottom plate (2) is close to the side of device shell (1) and is fixedly arranged with the side plate (4) along the periphery, be provided with spring card (5) on side plate (4), device shell (1) is clamped with bottom plate (2) through spring card (5), card slot (6), one side of spring card (5) is provided with clamping mechanism (7); The clamping mechanism (7) includes a sliding slot (701), a limiting strip (702) is slidably connected to the inner side of the sliding slot (701), a protrusion (703) is fixedly connected to the top side of the limiting strip (702) by penetrating the sliding slot (701), a clamping block (704) is fixedly connected to the inner side of the side plate (4) and the corresponding position of the extending end of the limiting strip (702), and the clamping block (704) is clamped with the limiting strip (702).

2. The fresh air variable frequency control device according to claim 1, characterized in that: The limiting strip (702) is located on the inner side of the spring card (5), and the limiting strip (702) abuts with the spring card (5).

3. The fresh air variable frequency control device according to claim 1, characterized in that: The protrusion (703) is a rectangular block structure, and a plurality of anti-skid teeth are equidistantly arranged on the surface of the protrusion (703).

4. The fresh air variable frequency control device according to claim 1, characterized in that: The surface of the device shell (1) is provided with a hollow groove (705) at a position opposite to the protrusion (703) to provide a movement space for the protrusion (703).

5. The fresh air variable frequency control device according to claim 1, characterized in that: The bottom plate (2) is bolted with a reserved mounting groove of the outside, and a plurality of wiring terminals (3) are equidistantly arranged on the back of the bottom plate (2).

6. The fresh air variable frequency control device according to claim 1, characterized in that: The surface of the device shell (1) is provided with a display panel (8), a PLC control panel is installed on the inner side of the device shell (1), and the display panel (8) is electrically connected with a fresh air system fan.

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