A fresh air system frequency converter protection shell convenient to install

Abstract

The utility model relates to frequency converter protection equipment technical field and disclose a new trend system frequency converter protection shell convenient to installation, including case, first installation component and second installation component, case, first installation component is hinged in the side surface of case middle part, and second installation component is slidingly connected in the side surface of case upper portion, and the metal plate material of rectangular parallelepiped structure is made into case, and the side fixed mounting of first installation component has the docking piece, and the other side fixed mounting of first installation component has the hinged part, and the front end surface fixed setting of first installation component has the handle, and the handle is convenient to maintain and overhaul to internal frequency converter, and the docking piece includes right angle frame, spacing frame, arc piece, clamping block and straight groove block, and the electric push rod of the buckle of the utility model case extrudes straight groove block after clamping block changes the inclination angle and changes the design of spacing cancellation and the sliding guide rail design of second installation component, realizes the inspection or maintenance effect to internal frequency converter important components etc.

Description

Technical Field

[0001] This utility model relates to the technical field of inverter protection equipment, and in particular to an easy-to-install protective housing for a fresh air system inverter. Background Technology

[0002] In a fresh air system, the frequency converter is the core component for controlling the fan speed. Its normal operation is crucial to the energy saving and stability of the system. It is a device used to control the fan speed in a fresh air system. According to the needs of indoor and outdoor air quality, number of people, etc., the fresh air supply can be flexibly adjusted. By adjusting the power supply frequency, the motor speed is changed, thereby achieving precise control of the fresh air volume.

[0003] The protective housings for frequency converters used in existing fresh air systems on the market typically have the following problems:

[0004] The installation structure is complex. Most of the time, the mounting plate is fixed to the protective box with bolts. It requires the use of various tools such as screwdrivers. The installation steps are cumbersome and consume a lot of time and manpower.

[0005] 2. The protective casing has a low degree of integration with the fresh air system. After installation, there may be inaccurate docking with other components of the system, which may affect the overall operation of the fresh air system inside the casing. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an easy-to-install protective housing for a fresh air system frequency converter, solving problems such as inconvenient installation, poor protective performance, and inadequate heat dissipation in existing technologies.

[0007] This utility model provides the following technical solution:

[0008] A protective housing for a fresh air system inverter that is easy to install includes a chassis, a first mounting component, and a second mounting component. The first mounting component is hinged to the side of the middle part of the chassis, and the second mounting component is slidably connected to the side of the upper part of the chassis. The chassis is made of a rectangular metal plate. A connecting piece is fixedly installed on one side of the first mounting component, and a hinge is fixedly installed on the other side of the first mounting component. A handle is fixedly provided on the front end face of the first mounting component.

[0009] The docking component includes a right-angle bracket, a limiting bracket, an arc-shaped piece, a locking block, and a straight groove block. The side of the right-angle bracket is fixedly connected to the side of the first mounting component. The side wall of the right-angle bracket is fixedly connected to the limiting bracket. The side wall of the limiting bracket is fixedly connected to the arc-shaped piece. The side wall of the arc-shaped piece is fixedly connected to the locking block. The end face of the locking block is fixedly connected to the straight groove block. A stop block is fixedly provided on the inner wall of the chassis. The stop block is in close contact with the locking block. An electric push rod is fixedly provided on the inner wall of the chassis. A ball bearing is fixedly provided at the output end of the electric push rod. The ball bearing is slidably connected to the inner wall of the straight groove block.

[0010] Preferably, the hinge includes a connecting block and a rotating shaft, a bushing is fixedly provided on the inner wall of the chassis, the connecting block is fixedly connected to the side of the first mounting component, the rotating shaft is rotatably connected to the inner wall of the connecting block, and the upper and lower parts of the hinge are fixedly connected to the bushing.

[0011] Preferably, a sliding guide rail is fixedly provided on the inner wall of the upper part of the chassis, and a sliding plate corresponding to the sliding guide rail is provided on the sliding guide rail. The side of the sliding plate is slidably connected to the second mounting component. A sealing strip is fixedly provided on the side of the second mounting component. The sealing strip is an elastic sealing material, and the sealing strip is in close contact with the end face of the upper part of the chassis during the movement of the second mounting component.

[0012] Preferably, a square plunger is fixedly installed between the second mounting component and the sliding guide rail. The square plunger includes a first square plug and a second square plug. The first square plug is inserted into a square hole in the sliding guide rail, and the second square plug is inserted into a square hole in the second mounting component.

[0013] Preferably, a controller is fixedly installed on the front of the upper part of the chassis, a dustproof ventilation port is fixedly provided on the top of the chassis, a ventilation fan is installed at the lower part of the dustproof ventilation port, the ventilation fan is electrically connected to the dustproof ventilation port of the frequency converter, and an electric push rod is electrically connected to the controller.

[0014] Preferably, a side slide plate is fixedly provided on the upper side of the chassis, and the side slide plate is provided with two sets of inner grooves that are slidably connected to the upper and lower ends of the second mounting component.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, the electric push rod of the buckle of the chassis presses the straight groove block, and the buckle changes the tilt angle to cancel the limit design and the sliding guide rail design of the second installation component, so as to realize the rapid installation of the shell without tools, which greatly improves the installation efficiency and reduces the installation time and labor costs.

[0017] 2. In this utility model, the first mounting component that can be opened from the front of the chassis and the second mounting component on the side of the chassis can be slidably disassembled, and the dustproof ventilation port of the top chassis can be removed, so as to facilitate the maintenance and repair of the internal frequency converter, and better integrate the outer shell and the ventilation system, thus ensuring the overall operation of the system. Attached Figure Description

[0018] Figure 1 This is a first structural schematic diagram of the present utility model;

[0019] Figure 2 This is a second structural schematic diagram of the entire utility model;

[0020] Figure 3 This is a schematic diagram of the hinge component on the second mounting assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the docking component of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the agglomerate of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the skateboard of this utility model;

[0024] Figure 7 This is a schematic diagram of the planar structure of the second mounting component of this utility model;

[0025] Figure 8 This is a structural schematic diagram of the first square plug of this utility model.

[0026] In the diagram: 1. Chassis; 2. First mounting component; 3. Handle; 4. Second mounting component; 5. Connecting part; 501. Right-angle bracket; 502. Limit bracket; 503. Arc-shaped piece; 504. Locking block; 505. Straight groove block; 6. Hinge; 61. Connecting block; 62. Rotating shaft; 7. Stop block; 8. Electric push rod; 9. Ball bearing; 10. Bushing; 11. Sliding guide rail; 12. Slide plate; 13. Sealing strip; 14. Square plunger; 141. First square plug; 142. Second square plug; 15. Dustproof vent; 16. Controller; 17. Side slide plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-8 A protective housing for a fresh air system inverter that is easy to install includes a chassis 1, a first mounting component 2, and a second mounting component 4. The first mounting component 2 is hinged to the side of the middle part of the chassis 1, and the second mounting component 4 is slidably connected to the side of the upper part of the chassis 1. The chassis 1 is made of a rectangular metal plate. A connecting piece 5 is fixedly installed on one side of the first mounting component 2, and a hinge piece 6 is fixedly installed on the other side of the first mounting component 2. A handle 3 is fixedly provided on the front end face of the first mounting component 2, and the handle 3 facilitates the maintenance and repair of the internal inverter.

[0029] The docking component 5 includes a right-angle bracket 501, a limiting bracket 502, an arc-shaped piece 503, a locking block 504, and a straight groove block 505. The side of the right-angle bracket 501 is fixedly connected to the side of the first mounting component 2. The side wall of the right-angle bracket 501 is fixedly connected to the limiting bracket 502. The side wall of the limiting bracket 502 is fixedly connected to the arc-shaped piece 503. The side wall of the arc-shaped piece 503 is fixedly connected to the locking block 504. The end face of the locking block 504 is fixedly connected to the straight groove block 505. A stop block 7 is fixedly provided on the inner wall of the chassis 1. The stop block 7 is tightly connected to the locking block 504. A tight contact is maintained between the inner wall of the housing 1 and an electric push rod 8. A ball bearing 9 is fixedly mounted on the output end of the electric push rod 8. Since the electric push rod 8 is a telescopic component, it can compress the mating part 5. When the deformation reaches a certain extent, there is no contact between the locking block 504 and the stop block 7, causing the limiting function to fail. The ball bearing 9 slides along the inner wall of the straight groove block 505. During installation, after the inclined surface of the locking block 504 slides past the position of the ball bearing 9, the elastic reset of the arc-shaped piece 503 causes the stop block 7 to make tight contact with the locking block 504, thus limiting the movement. The second mounting component 4 is in position, and its end face has contacted the front face of the chassis 1. After being limited on both sides, the second mounting component 4 no longer rotates, completing the automatic installation of the second mounting component 4. During disassembly, the electric push rod 8 presses against the straight groove block 505, and the locking block 504 changes its tilt angle and is no longer limited by the stop block 7. When the handle 3 is pulled, the electric push rod 8 retracts, making it easier to inspect or maintain important components such as the frequency converter inside after opening the second mounting component 4. A sliding guide rail 11 is fixedly installed on the inner wall of the upper part of the chassis 1. A sliding plate 12 corresponding to the sliding guide rail 11 is installed on the sliding guide rail 11. The side of the sliding plate 12 is slidably connected to the second mounting component 4. A sealing strip 13 is fixedly installed on the side of the second mounting component 4. The sealing strip 13 is an elastic sealing material, and during the movement of the second mounting component 4, the sealing strip 13 is in close contact with the end face of the upper part of the chassis 1. The sealing strip 13 can effectively seal the gap between the door panel and the main body, preventing dust and moisture from entering and ensuring a good structural fit with the fresh air system.

[0030] The hinge 6 includes a connecting block 61 and a rotating shaft 62. A bushing 10 is fixedly installed on the inner wall of the chassis 1. The connecting block 61 is fixedly connected to the side of the first mounting component 2. The rotating shaft 62 is rotatably connected to the inner wall of the connecting block 61. The upper and lower parts of the hinge 6 are fixedly connected to the bushing 10. By rotating and adjusting the rotating shaft 62 and the connecting block 61, the second mounting component 4 can be easily installed while ensuring a seal with the chassis 1. A square plunger 14 is fixedly installed between the second mounting component 4 and the sliding guide rail 11. The square plunger 14 includes a first square plug 141 and a second square plug. The first square plug 141 is inserted into the square hole of the sliding guide rail 11, and the second square plug 142 is inserted into the square hole of the second mounting component 4. The second mounting component 4 and the sliding guide rail 11 are fixed and limited by the square plunger 14, so that the sliding guide rail can be installed without the need for inconvenient tools such as screws, reducing installation time and manpower. A side slide plate 17 is fixedly installed on the upper side of the chassis 1. The side slide plate 17 is provided with two sets of inner grooves that are slidably connected to the upper and lower ends of the second mounting component 4.

[0031] Based on Embodiment 1, please refer to the embodiments of this utility model. Figure 1 , Figure 2 and Figure 4 The controller 16 is fixedly installed on the front of the upper part of the chassis 1. The top of the chassis 1 is fixedly provided with a dustproof vent 15. A ventilation fan is installed at the lower part of the dustproof vent 15. The ventilation fan is electrically connected to the dustproof vent 15 of the frequency converter. The controller 16 is electrically connected to an electric push rod 8. By controlling the electronic components, the ventilation fan can dissipate the heat generated by the frequency converter in a timely manner, maintain the temperature inside the casing, improve the operating reliability and service life of the frequency converter, and the electric push rod 8 can support the disassembly and installation process of the snap-fit ​​structure.

[0032] Working principle:

[0033] Step 1: In order to achieve quick installation of the first installation component 2 and avoid the tight locking structure of the docking part 5 which makes it difficult to open the second installation component 4, the ball bearing 9 on the electric push rod 8 presses against the straight groove block 505, causing the position angle of the locking block 504 to tilt. It is no longer limited by the stop block 7. By gripping the handle 3 and flipping it outward, the second installation component 4 can be opened, which facilitates the maintenance and repair of the internal frequency converter.

[0034] Step two: Through the design of the sliding guide rail, the second mounting component 4 position can be quickly disassembled and installed. The end face of this mounting position is in close contact with the sealing strip 13, which effectively prevents the intrusion of dust and moisture and protects the electronic components of the internal frequency converter.

[0035] Step 3: The dustproof ventilation opening 15 is equipped with a removable protective net, which facilitates maintenance and repair of the top of the chassis 1, as well as cleaning and replacement of the dustproof net;

[0036] Step four: The operating power of the ventilation fan of the dustproof vent 15 is adjusted according to the heat generated by the frequency converter and other heat-generating components, so that the outer shell is better integrated with the fresh air system and the overall operating effect of the system is ensured.

Claims

1. A protective housing for a fresh air system frequency converter that is easy to install, comprising a chassis (1), a first mounting component (2), and a second mounting component (4), characterized in that: The first mounting component (2) is hinged to the side of the middle part of the chassis (1), and the second mounting component (4) is slidably connected to the side of the upper part of the chassis (1). The chassis (1) is made of metal plate with a cuboid structure. A docking part (5) is fixedly installed on one side of the first mounting component (2), and a hinge part (6) is fixedly installed on the other side of the first mounting component (2). A handle (3) is fixedly provided on the front end face of the first mounting component (2). The docking component (5) includes a right-angle bracket (501), a limiting bracket (502), an arc-shaped piece (503), a locking block (504), and a straight groove block (505). The side of the right-angle bracket (501) is fixedly connected to the side of the first mounting assembly (2), and the side wall of the right-angle bracket (501) is fixedly connected to the limiting bracket (502). The side wall of the limiting bracket (502) is fixedly connected to the arc-shaped piece (503), and the side wall of the arc-shaped piece (503) is fixedly connected to the limiting bracket (502). The end face of the card block (504) is fixedly connected to the straight groove block (505). A stop block (7) is fixedly provided on the inner wall of the chassis (1). The stop block (7) is in close contact with the card block (504). An electric push rod (8) is fixedly provided on the inner wall of the chassis (1). A ball bearing (9) is fixedly provided at the output end of the electric push rod (8). The ball bearing (9) is slidably connected to the inner wall of the straight groove block (505).

2. The protective housing for a fresh air system frequency converter that is easy to install according to claim 1, characterized in that: The hinge (6) includes a connecting block (61) and a rotating shaft (62). A bushing (10) is fixedly provided on the inner wall of the housing (1). The connecting block (61) is fixedly connected to the side of the first mounting assembly (2). The rotating shaft (62) is rotatably connected to the inner wall of the connecting block (61). The upper and lower parts of the hinge (6) are fixedly connected to the bushing (10).

3. The protective housing for a fresh air system frequency converter that is easy to install according to claim 1, characterized in that: A sliding guide rail (11) is fixedly installed on the inner wall of the upper part of the chassis (1). A sliding plate (12) corresponding to the sliding guide rail (11) is provided on the sliding guide rail (11). The side of the sliding plate (12) is slidably connected to the second mounting component (4). A sealing strip (13) is fixedly installed on the side of the second mounting component (4). The sealing strip (13) is an elastic sealing material, and during the movement of the second mounting component (4), the sealing strip (13) is in close contact with the end face of the upper part of the chassis (1).

4. The protective housing for a fresh air system frequency converter that is easy to install according to claim 3, characterized in that: A square plunger (14) is fixedly installed between the second mounting component (4) and the sliding guide rail (11). The square plunger (14) includes a first square plug (141) and a second square plug (142). The first square plug (141) is inserted into the square hole of the sliding guide rail (11), and the second square plug (142) is inserted into the square hole of the second mounting component (4).

5. The protective housing for a fresh air system frequency converter that is easy to install according to claim 2, characterized in that: A controller (16) is fixedly installed on the front of the upper part of the chassis (1). A dustproof ventilation port (15) is fixedly provided on the top of the chassis (1). A ventilation fan is installed at the lower part of the dustproof ventilation port (15). The ventilation fan is electrically connected to the dustproof ventilation port (15) of the frequency converter. An electric push rod (8) is electrically connected to the controller (16).

6. The protective housing for a fresh air system frequency converter that is easy to install according to claim 1, characterized in that: A side slide plate (17) is fixedly installed on the upper side of the chassis (1). The side slide plate (17) is provided with two sets of inner grooves that are slidably connected to the upper and lower ends of the second mounting component (4).

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