Dustproof and waterproof shielding electric cabinet

Abstract

The utility model relates to a dustproof and waterproof shielding electric cabinet comprising a cabinet body and a door body, the door body is used for shielding a front side opening of the cabinet body, the front side opening of the cabinet body vertically extends outwards to form a continuous frame-shaped protruding edge, and the tail end of the frame-shaped protruding edge vertically folds outwards to form a bending flange. An inner frame edge and an outer frame edge which are both of a rectangular structure are arranged in the middle of the inner side wall of the door body in a protruding mode, a frame-shaped groove channel is formed between the outer frame edge and the inner frame edge and used for allowing the bent turnup to enter, and a shielding rubber strip is arranged in the frame-shaped groove channel. According to the utility model, after the door body and the box body are closed, the dustproof and waterproof sealing effects of the equipment are improved through the mutual matching of the bent turnup and the frame-shaped channel formed by the outer frame edge and the inner frame edge, and the shielding rubber strip is also arranged in the frame-shaped channel, so that the radiation isolation effect is good, and other external equipment can be normally used.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical control box equipment, specifically, it demonstrates a dustproof, waterproof, and shielded electrical control box. Background Technology

[0002] An electrical control box is a box used to install and protect electrical equipment and control systems. In order to ensure the stable operation of the components inside the electrical control box, it is necessary to have certain protective properties such as waterproof, dustproof and electromagnetic shielding. However, the existing electrical control boxes have poor protective performance.

[0003] For example, Chinese patent CN207543440U discloses an outer casing electrical control box, the structure of which includes an electrical control box body, an electrical control box door, a hinge, a handle, a lock body, a latch, an electrical mounting plate, a rubber sealing strip, and a rear shell. The electrical control box body has an electrical control box door at the front, and a handle on the front of the electrical control box door. The handle is detachably connected to the electrical control box door, and a lock body is provided on the handle. The lock body has a latch, and the latch is welded to the lock body. The electrical control box door is fixedly connected to the electrical control box body by a hinge. An electrical mounting plate is provided in the middle of the electrical control box body, and the electrical mounting plate is fixedly connected by a mounting plate fixing nut. A rubber sealing strip is provided around the electrical control box body. The rear shell includes a mounting plate fixing nut, mounting holes, and a waterproof rubber gasket.

[0004] However, the existing technology only achieves its waterproof purpose by setting a rubber sealing strip around the main body of the electrical control box. However, the dustproof, waterproof and electromagnetic shielding design of the entire electrical control box is poor, which will affect the service life of the electrical control box. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof, waterproof, and shielded electrical control box with a simple and practical structure, and good dustproof, waterproof, and shielding effects.

[0006] The technical solution is as follows:

[0007] A dustproof and waterproof shielded electrical control box includes a box body and a door. One side of the door is rotatably connected to one side of the outer surface of the box body. The box body has a front opening, and the door is used to cover the front opening. The front opening of the box body extends vertically outward to form a continuous frame-shaped protrusion. The end of the frame-shaped protrusion folds vertically outward to form a bent flange. The inner sidewall of the door has an inner frame edge and an outer frame edge, both of which are rectangular, protruding from the middle. The outer frame edge is larger than the inner frame edge and the outer frame edge is concentric with the inner frame edge. The outer frame edge and the inner frame edge form a frame-shaped channel for accommodating the bent flange. A shielding rubber strip is installed inside the frame-shaped channel. A shielding cover protrudes outward from the middle of the inner sidewall of the door.

[0008] Furthermore, the outer perimeter of the inner sidewall of the door is vertically folded inward to form a frame-shaped shielding edge, the width of which is greater than the width of the outer and inner frame edges. This effectively prevents dust, rainwater, and other external contaminants from entering the enclosure, thus meeting dustproof and waterproof protection requirements.

[0009] Furthermore, the surface of the door body is provided with a plurality of reserved mounting holes in the middle array. The reserved mounting holes are used to install some devices such as indicator lights and buttons.

[0010] Furthermore, the shielding cover covers several of the pre-reserved mounting holes, and the shielding cover contains several auxiliary mounting strips. The door has several pre-reserved mounting holes; without treatment, these numerous openings would pose an electromagnetic leakage problem. Therefore, a shielding cover is added to the back of the door to provide electromagnetic shielding.

[0011] Furthermore, an automatic door opening and closing mechanism is provided between the door and the housing. This mechanism includes a first mounting base, a second mounting base, and a pneumatic spring. The first and second mounting bases are respectively located on the inner wall of the door and the inner wall of the housing. The main body of the pneumatic spring is rotatably connected to the second mounting base, and the output end of the pneumatic spring is rotatably connected to the first mounting base. Thus, the pneumatic spring provides support, cushioning, braking, and angle adjustment between the door and the housing, facilitating the opening and closing of the door. Furthermore, based on the characteristics of the pneumatic spring, after opening the door, it can be easily rotated and fixed at any angle, facilitating subsequent operation and maintenance.

[0012] Furthermore, the bottom surface of the housing is provided with a plurality of connector openings in an array to facilitate the assembly of multiple sets of connectors.

[0013] Furthermore, several nameplate openings are distributed around the connector opening to facilitate the mounting of nameplates on the connector.

[0014] Furthermore, a pair of vertically arranged wall-mounted mounting plates are provided on the left and right sides of the back of the enclosure, and the wall-mounted mounting plates are connected to the enclosure via vibration isolators. Vibration isolators reduce the transmission of equipment vibration, thereby reducing wear and fatigue caused by vibration and extending the service life of the equipment.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: after the door and the box are closed, the set bending and flange and the frame-shaped channel formed by the outer frame edge and the inner frame edge cooperate with each other to improve the dustproof and waterproof sealing effect of the equipment. In addition, a shielding rubber strip is also set in the frame-shaped channel to make the radiation isolation effect good, so that other external equipment can be used normally. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of a dustproof, waterproof, shielded electrical control box according to an embodiment of this utility model;

[0017] Figure 2 This is a partial schematic diagram of the location of the front opening of the box in an embodiment of this utility model;

[0018] Figure 3 This is a partial schematic diagram of the middle position of the door in an embodiment of this utility model;

[0019] Figure 4 This is a partial schematic diagram of the shielding cover according to an embodiment of the present invention;

[0020] The relevant markings in the attached diagram are: 1-box body, 2-door body, 3-shielding cover body, 4-wall mounting plate, 11-frame-shaped protruding edge, 12-bent flange, 13-second mounting base, 14-connector opening, 15-label opening, 21-inner frame edge, 22-outer frame edge, 23-frame-shaped channel, 24-frame-shaped shielding edge, 25-first mounting base, 26-reserved mounting hole, 31-auxiliary mounting strip, 41-vibration isolator. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] This utility model provides a dustproof and waterproof shielded electrical control box to solve the technical problems mentioned in the background art, so that the equipment has good anti-magnetic interference effect and dustproof and waterproof effect.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown. Specifically, it mainly includes a box body 1 and a door body 2. One side of the door body 2 is rotatably connected (using a hinge) to one side of the outer surface of the box body 1. The interior of the box body 1 is hollow and has an opening on the front, while the door body 2 is used to cover the front opening of the box body 1.

[0024] An automatic door opening and closing mechanism is installed between the upper part of the door body 2 and the housing 1. This mechanism includes a first mounting base 25, a second mounting base 13, and a pneumatic spring (not shown in the figure; the pneumatic spring is a standard component). The first mounting base 25 and the second mounting base 13 are respectively located on the inner wall of the door body 2 and the inner wall of the housing 1. The main body of the pneumatic spring is rotatably connected to the second mounting base 13, and the output end of the pneumatic spring is rotatably connected to the first mounting base 25. Thus, the pneumatic spring provides support, buffering, braking, and angle adjustment between the door body and the housing, facilitating the opening and closing of the door. Furthermore, based on the characteristics of the pneumatic spring, after opening the door, it can be easily rotated and fixed at any angle, facilitating subsequent operation and maintenance.

[0025] In this design, a continuous frame-shaped protruding edge 11 extends vertically outward from the front opening of the housing 1. The end of the frame-shaped protruding edge 11 continues to fold vertically outward to form a bent flange 12. The frame-shaped protruding edge and the bent flange are integrally formed and bent. Correspondingly, an inner frame edge 21 and an outer frame edge 22, both rectangular in structure, protrude from the middle of the inner sidewall of the door 2. The inner frame edge and the outer frame edge are integrally formed, and the size of the outer frame edge 22 is larger than the size of the inner frame edge 21. Furthermore, the outer frame edge 22 and the inner frame edge 21 are concentric, and the width of the outer frame edge 22 is the same as the width of the inner frame edge 21. There is a gap between the outer frame edge 22 and the inner frame edge 21, and the outer frame edge 22 and the inner frame edge 21 will form a continuous frame-shaped channel 23. When the door 2 and the box 1 are closed, the frame-shaped channel 23 can be used to accommodate the entry of the bent flange 12, forming a sealing and protective effect. A shielding rubber strip (not shown in the figure) is also set in the frame-shaped channel 23 to play a certain shielding effect.

[0026] In addition, the outer perimeter of the inner wall of the door 2 is vertically folded inward to form a frame-shaped shielding edge 24. The frame-shaped shielding edge and the door are integrally formed and bent from a single sheet metal part. The width of the frame-shaped shielding edge 24 is greater than the width of the outer frame edge 22 and the inner frame edge 21. In this way, when the door and the enclosure are closed, the frame-shaped shielding edge can still contact the outer wall of the enclosure, which can further effectively prevent dust, rainwater, etc. from outside the equipment from entering the enclosure, thus meeting the dustproof and waterproof protection requirements.

[0027] Furthermore, the surface of the door 2 is provided with several reserved mounting holes 26 in the middle array. The reserved mounting holes are used to install some devices such as indicator lights and buttons.

[0028] The inner wall of the door 2 has an outwardly protruding shielding cover 3 in the middle. The shielding cover 3 covers several pre-reserved mounting holes 26 from the back. The shielding cover 3 also has several auxiliary mounting strips 31 for mounting devices. The door has several pre-reserved mounting holes. If no treatment is done, there will be electromagnetic leakage problems due to so many openings on the door. Therefore, a shielding cover is added to the back of the door to play the role of electromagnetic shielding.

[0029] In addition, the bottom surface of the housing 1 is provided with a number of connector openings 14 for mounting multiple sets of connectors; furthermore, several nameplate openings 15 are distributed around the connector openings 14 for mounting nameplates on the connectors.

[0030] The enclosure 1 has a pair of vertically arranged wall-mounted mounting plates 4 on the left and right sides of its rear side. The wall-mounted mounting plates 4 are connected to the enclosure 1 by vibration isolators 41. The vibration isolators are steel wire rope vibration isolators, which reduce the transmission of equipment vibration, reduce wear and fatigue caused by vibration, and thus extend the service life of the equipment.

[0031] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A dustproof and waterproof shield electric control box, comprising a box body and a door body, one side of the door body is rotatably connected to one side of the outer surface of the box body, the front side of the box body is open, and the door body is used for shielding the open front side of the box body, characterized in that: The front side opening position of the box body vertically extends outward to form a continuous frame-shaped convex edge, and the end of the frame-shaped convex edge is vertically folded outward to form a bent flange. The middle position of the inner side wall of the door body is provided with an inner frame edge and an outer frame edge, both of which are rectangular in structure. The size of the outer frame edge is larger than that of the inner frame edge, and the outer frame edge is concentric with the inner frame edge. A frame-shaped channel is formed between the outer frame edge and the inner frame edge, which is used to accommodate the bent flange, and a shielding rubber strip is arranged in the frame-shaped channel. An outwardly protruding shielding cover is arranged at the middle position of the inner side wall of the door body.

2. A dust and water resistant shielded electrical control box according to claim 1, wherein The outer peripheral edge of the inner side wall of the door body is vertically folded inward to form a frame-shaped shielding edge, and the width of the frame-shaped shielding edge is greater than the width of the outer frame edge and the inner frame edge.

3. The dustproof and waterproof shield electric control box according to claim 1, characterized in that, A plurality of reserved mounting holes are arranged in the middle of the surface of the door body.

4. The dustproof and waterproof shield electric control box according to claim 3, characterized in that, The shielding cover covers a plurality of the reserved mounting holes, and the shielding cover has a plurality of auxiliary mounting strips inside.

5. The dust and water resistant shielded electrical control box of claim 1, wherein, An automatic opening and closing door mechanism is arranged between the door body and the box body, and the automatic opening and closing door mechanism includes a first mounting seat, a second mounting seat, and a pneumatic spring. The first mounting seat and the second mounting seat are arranged on the inner wall of the door body and the inner wall of the box body, respectively. The main body end of the pneumatic spring is rotatably connected to the second mounting seat, and the output end of the pneumatic spring is rotatably connected to the first mounting seat.

6. A dust and water resistant shielded electrical control box according to claim 1, wherein A plurality of connector openings are arranged in the bottom surface of the box body.

7. A dust and water resistant shielded electrical control box according to claim 6, wherein A plurality of sign openings are also distributed around the connector openings.

8. A dust and water resistant shielded electrical control box according to claim 1, wherein A pair of vertically arranged wall mounting plates are arranged on the left and right sides of the back surface of the box body, and the wall mounting plates are connected to the box body through a vibration isolator.

Images