Protection structure for tapping unit

Abstract

The utility model discloses a protection structure for a tapping unit. The protection structure comprises a box body and a circuit break protection unit. The box body is provided with a protection opening. And the circuit break protection unit is arranged at the protection opening. The circuit break protection unit is provided with an air switch clamping seat and a housing main body. And the air switch clamping seat and the housing main body are respectively arranged on two sides of the protection opening. According to the utility model, the drainage groove for guiding the flow direction of the water drops is formed at the edge of the joint of the air switch clamping seat and the housing main body. And meanwhile, the bottom of the air switch clamping seat is provided with the slope surface matched with the drainage groove, so that water drops entering from the gap can flow to the slope surface under the drainage of the drainage groove and are guided to the outside through the slope surface, and the damage of the water drops to the circuit breaker is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission equipment, and in particular relates to a protection structure for a tapping unit. Background Art

[0002] The bus duct system is a power distribution device that efficiently transmits current. It is widely used in the power distribution systems of high-rise buildings and large-scale factories. In the computer room, the bus duct system is generally installed above the cabinet, and the tap unit is hung at the lower end of the bus duct but higher than the top of the cabinet.

[0003] For the convenience of use and maintenance, an openable observation window (PC transparent protective mask) is installed at the circuit breaker (circuit breaker) in the tap unit (plug-in box), where the observation window is hinged with the plug-in box to facilitate opening and closing by the worker. However, when the observation window is closed, although it can play a protective role, if it is opened when there are water droplets on the surface of the observation window, it will cause water droplets or foreign matter to enter the inside of the cover through the gap at the connection between the observation window and the cover, and then enter the inside of the tap unit, causing certain damage to the circuit breaker and the inside of the tap unit. At the same time, when the observation window is closed, there is a gap between the observation window and the cover because the observation window and the cover are hinged. There is a risk of water droplets and foreign matter entering through the gap. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a protection structure for a tapping unit to solve the technical problem that water drops and foreign matter easily enter through the gap between the observation window and the cover body and damage the circuit breaker.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] A protection structure for a tapping unit comprises a box body and a circuit breaker protection unit; the box body is provided with a protection opening, and the circuit breaker protection unit is arranged at the protection opening.

[0007] The circuit breaker protection unit comprises an open card holder and a housing body. The open card holder and the housing body are respectively installed on both sides of the protection opening. A drainage groove is provided at the edge where the open card holder and the housing body meet. A slope surface matching the drainage groove is provided at the bottom of the open card holder.

[0008] Furthermore, the bottom edge of the housing body is higher than the bottom edge of the slope surface, forming a drainage port for drainage.

[0009] Furthermore, the open card seat is provided with an installation slot for accommodating the circuit breaker. The housing body is installed at the opening of the installation slot to form a protective chamber with the installation slot; and a through hole for installing the circuit breaker is provided at the bottom of the installation slot.

[0010] Furthermore, the housing body includes a housing base and an observation window. The housing base is fixed at the protection opening and is provided with a clearance slot communicating with the mounting slot. The observation window is hingedly matched with the top edge of the housing base.

[0011] Furthermore, a waterproof edge is provided at the top edge of the protection opening, the outer end of which extends toward one side of the housing base and blocks the gap between the connection between the housing base and the door panel and the gap between the observation window and the housing base.

[0012] Furthermore, the box body includes an inner shell and a door panel installed at the opening of the inner shell; the protective opening is opened on the door panel.

[0013] Furthermore, the waterproof edge is formed integrally with the door panel and is arranged at the top edge of the protective opening by means of a bending method.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model forms a drainage groove for guiding the flow of water drops at the edge of the junction between the air switch holder and the housing body. At the same time, a slope surface matching the drainage groove is provided at the bottom of the air switch holder, so that water drops entering from the gap can flow to the slope surface under the drainage of the drainage groove and be guided to the outside through the slope surface, thereby preventing water drops from damaging the circuit breaker.

[0016] 2. The utility model provides a waterproof edge at the top edge of the protective opening. The outer end of the waterproof edge extends to one side of the housing base, and blocks the gap between the connection between the housing base and the door panel, and the hinge between the observation window and the housing base, so that when water drops on the bent edge, it flows into the drainage groove from both sides of the bent edge, thereby effectively preventing water drops from entering the installation groove when the observation window is opened, and preventing water drops from directly penetrating into the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the circuit breaker protection unit in the utility model in an open state;

[0019] Figure 3 It is a schematic diagram of the relative position of the waterproof edge and the base of the housing in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the hollow opening card seat and the cover shell base of the utility model;

[0021] Figure 5 It is an explosion diagram of the circuit breaker protection unit in the utility model.

[0022] Figure numerals: 1. Box body; 1-1. Inner shell; 1-2. Door panel; 2. Circuit breaker protection unit; 3. Air switch socket; 4. Cover body; 4-1. Cover base; 4-2. Observation window; 5. Drainage groove; 6. Slope surface; 7. Drainage outlet; 8. Waterproof edge. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, a protection structure for a tapping unit comprises a box body 1 and a circuit breaker protection unit 2. The circuit breaker protection unit 2 is used to protect the circuit breaker in the box body 1 and facilitate the staff to perform on-off operations.

[0026] like Figure 1 As shown, the box body 1 includes an inner shell 1-1 for mounting components, and a door panel 1-2 mounted at the opening of the inner shell 1-1. The door panel 1-2 is fixed to the inner shell 1-1 by bolts. A protective opening matching the circuit breaker is provided on the door panel 1-2 at the circuit breaker mounting position. The circuit breaker protection unit 2 is fixed at the protective opening to provide waterproof protection for the circuit breaker.

[0027] like Figure 2 , 3 As shown in Figures 5 and 6, the circuit breaker protection unit 2 includes a switch holder 3 and a housing body 4. The switch holder 3 and the housing body 4 are respectively installed on both sides of the protection opening. The switch holder 3 is provided with a mounting groove for accommodating the circuit breaker. The housing body 4 is installed at the opening of the mounting groove, and forms a protection chamber for protecting the circuit breaker with the mounting groove.

[0028] The bottom of the installation groove is provided with a plurality of clearance holes that match the cross-sectional dimensions of the circuit breaker. The circuit breaker is embedded in the clearance holes, and the inner ends extend into the protective chamber. The size of the clearance holes is the same as the cross-sectional dimensions of the empty opening, so that when the empty opening holder 3 is matched with the circuit breaker, it can not only protect the circuit breaker, but also fix the circuit breaker. Furthermore, the circuit breaker extends into the card cover by about 5 mm. The top surface of the installation groove extends outward, covering the top surface of the circuit breaker, thereby effectively preventing water droplets from entering the installation groove after tilting 15 degrees, directly dripping into the circuit breaker, and causing damage to the circuit breaker.

[0029] like Figure 3 and 5 As shown, the housing body 4 is installed so that it can be flipped along the top edge of the mounting groove, thereby realizing the opening of the protection chamber during the circuit breaker operation and the closure under normal conditions. Specifically, the housing body 4 includes a housing base 4-1 and an observation window 4-2. The housing base 4-1 is fixed at the protection opening by bolts, and is provided with a clearance groove that communicates with the mounting groove. The observation window 4-2 is hingedly matched with the top edge of the housing base 4-1. The protection chamber is opened or closed by flipping the observation window 4-2.

[0030] Further, such as Figure 4 As shown. The edge where the air-open card seat 3 and the cover shell base 4-1 meet forms a drainage groove 5 for entering the protective cavity. The water droplets entering the waterproof cavity flow along the drainage groove 5 and gradually flow to the bottom of the air-open card seat 3. The bottom of the air-open card seat 3 is provided with a slope surface 6 that matches the end of the drainage groove 5. The water droplets entering the protective chamber can flow to the slope surface 6 under the drainage of the drainage groove 5, and be guided to the outside through the slope surface 6. Furthermore, the bottom edge of the cover shell base 4-1 is higher than the bottom edge of the slope surface 6, forming a drain port 7 for drainage. The water droplets that flow to the bottom of the slope surface 6 flow to the outside through the drain port 7.

[0031] like Figure 3 and 4 As shown, a waterproof edge 8 is provided at the top edge of the protective opening. The waterproof edge 8 is integrally formed with the door panel 1-2, and is provided at the top edge of the protective opening by bending. The outer end of the waterproof edge 8 extends to one side of the cover base 4-1, and blocks the gap between the connection between the cover base 4-1 and the door panel 1-2, and the hinge between the observation window 4-2 and the cover base 4-1. The inner end of the waterproof edge 8 is aligned with the drainage groove 5. Furthermore, the inner end of the waterproof edge 8 is straight, and the outer end is provided with a bent edge that is bent upward. When water droplets fall on the bent edge, they flow into the drainage groove 5 from both sides of the bent edge, thereby effectively preventing water droplets from entering the mounting groove when the observation window is opened, and preventing water droplets from directly penetrating into the circuit breaker.

[0032] When the user flips up the observation window 4-2 to perform a circuit breaker operation, the water droplets attached to the observation window 4-2 will flow along the surface of the observation window 4-2 to the gap between the observation window 4-2 and the housing base 4-1 and enter. The water droplets entering the gap are blocked and drained by the bent edge on the waterproof edge 8, and flow to the drainage grooves 5 located on both sides of the waterproof edge 8. Under the drainage of the drainage grooves 5, they flow to the slope surface 6 and are guided to the outside through the slope surface 6, effectively preventing the water droplets entering the protection chamber from affecting the circuit breaker.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A protection structure for a tapping unit, comprising a box (1) and a circuit breaker protection unit (2); the box (1) is provided with a protection opening; the circuit breaker protection unit (2) is arranged at the protection opening, characterized in that: The circuit breaker protection unit (2) comprises an open card seat (3) and a housing body (4); the open card seat (3) and the housing body (4) are respectively mounted on two sides of the protection opening; a drainage groove (5) is provided at the edge where the open card seat (3) and the housing body (4) meet; and a slope surface (6) matching the drainage groove (5) is provided at the bottom of the open card seat (3).

2. A protection structure for a tapping unit according to claim 1, characterized in that: The bottom edge of the casing body (4) is higher than the bottom edge of the slope surface (6), forming a drainage port (7) for drainage.

3. A protection structure for a tapping unit according to claim 1, characterized in that: The open card seat (3) is provided with a mounting groove for accommodating a circuit breaker; the housing body (4) is installed at the opening of the mounting groove to form a protective chamber with the mounting groove; and a clearance through hole for installing the circuit breaker is provided at the bottom of the mounting groove.

4. A protection structure for a tapping unit according to claim 1, characterized in that: The housing body (4) comprises a housing base (4-1) and an observation window (4-2); the housing base (4-1) is fixed at the protection opening and is provided with a clearance slot communicating with the installation slot; the observation window (4-2) is hingedly matched with the top edge of the housing base (4-1).

5. A protection structure for a tapping unit according to claim 4, characterized in that: A waterproof edge (8) is provided at the top edge of the protective opening; the outer end of the waterproof edge (8) extends toward one side of the housing base (4-1) and blocks the gap between the connection between the housing base (4-1) and the door panel (1-2), and the hinge between the observation window (4-2) and the housing base (4-1).

6. A protection structure for a tapping unit according to claim 5, characterized in that: The box body (1) comprises an inner shell (1-1) and a door panel (1-2) installed at the opening of the inner shell (1-1); the protective opening is opened on the door panel (1-2).

7. A protection structure for a tapping unit according to claim 6, characterized in that: The waterproof edge (8) is integrally formed with the door panel (1-2) and is arranged at the top edge of the protective opening by means of a bending method.

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