External direct current reactor

Abstract

The utility model discloses an external direct current electric reactor which comprises a protective shell, an electric reactor body is arranged in the protective shell, heat dissipation openings used for heat dissipation and ventilation are formed in the two sides of the protective shell, and the external direct current electric reactor further comprises a rain shielding assembly connected to the upper portion of the protective shell. The baffle is rotated downwards until the baffle stops at the angle of covering the heat dissipation opening, the rain blocking effect is achieved, rainwater can be prevented from entering the protection shell, the waterproof function is achieved, the rain blocking plate is rotated upwards until the ventilation holes are not covered any more, heat dissipation and ventilation can be freely conducted in the protection shell through the heat dissipation opening, and water blocking and ventilation do not affect each other; by adopting the drainage grooves extending in the front-back direction, rainwater can be drained from the drainage grooves in the top plate to the front and back, the outflow amount of the rainwater flowing down from the two sides is reduced, the amount of the rainwater splashed on the heat dissipation openings in the two sides of the protective shell is reduced, and the situation that the rainwater enters the protective shell through the heat dissipation holes, and operation of equipment in the protective shell is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to an external direct current reactor. Background Art

[0002] DC reactor, also known as smoothing reactor, is mainly used on the DC side of the converter and has many applications in general-purpose inverters. The reactor has a DC reactor with AC component flowing through it. The main purpose is to limit the AC component superimposed on the DC reactor to a certain specified value, keep the rectified current continuous, reduce the current ripple value, improve the input power factor, and suppress the harmonics generated by the converter.

[0003] An external DC reactor with announcement number CN218826480U includes a reactor body, one side of the reactor body is fixedly connected with an L-shaped fixing clip, one side of the L-shaped fixing clip is provided with a protective component, and the protective component includes a threaded fastener. Through the cooperation of the top plate and the protective shell, not only the reactor body can be protected, but also rain can be shielded in rainy weather, which can make the external DC reactor safer, but the external DC reactor is provided with heat dissipation holes for heat dissipation. In rainy and snowy weather, water droplets can easily enter the protective shell through the heat dissipation holes, affecting the operation of the equipment in the protective shell. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art, and comprises a protective shell, wherein a reactor body is arranged inside the protective shell, and heat dissipation ports for heat dissipation and ventilation are provided on both sides of the protective shell, and also comprises: a rain shield assembly, wherein the rain shield assembly is connected above the protective shell, and both sides of the rain shield assembly are connected to an extension plate through a first damping shaft; a baffle, wherein the baffle is arranged inside the heat dissipation port, and the baffle is rotatably connected to a connecting assembly; a buffer assembly, wherein the buffer assembly is connected between the protective shell and the reactor body; the rain shield assembly comprises a top plate, wherein a drainage groove extending in a front-to-rear direction is provided on the top plate, and an included angle between a side groove wall of the drainage groove and a groove bottom is an obtuse angle.

[0005] As a further description of the above technical solution: a fixing clip is arranged inside the protective shell, the reactor body is detachably connected to the fixing clip by bolts, and a dehumidification box is arranged above the reactor body.

[0006] As a further description of the above technical solution: the baffle includes a first plate body and a second plate body, the first plate body is rotatably connected to the connecting assembly, the first plate body is a recessed plate recessed into the protective shell, and the second plate body is a raised plate protruding out of the protective shell.

[0007] As a further description of the above technical solution: the connecting assembly includes a mounting frame, a second damping shaft is arranged inside the mounting frame, and the second damping shaft is connected to the first plate body.

[0008] As a further description of the above technical solution: the buffer assembly includes a base and a buffer plate, a buffer spring and a damper are connected between the base and the buffer plate, and the bottom of the base is detachably connected to the protective shell.

[0009] As a further description of the above technical solution: a vent hole is provided on the dehumidification box, a placement drawer is arranged inside the dehumidification box, and a desiccant is placed inside the placement drawer.

[0010] As a further description of the above technical solution: an inspection door is provided on the protective shell.

[0011] As a further description of the above technical solution: the top plate is higher in the front and lower in the back, and the first damping shaft is detachably connected under the top plate.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] The utility model plays a rain-blocking role by rotating the baffle plate downward until it stops at an angle covering the heat dissipation opening, thereby preventing rainwater from entering the interior of the protective shell and realizing a waterproof function; the rain shield is rotated upward until the air vent is no longer covered, and the interior of the protective shell can freely dissipate heat and exchange air through the heat dissipation opening, and water blocking and air permeability do not affect each other; by adopting drainage grooves extending in the front-to-back directions, rainwater can be discharged to the front and rear from the drainage grooves on the top plate, reducing the outflow of rainwater from both sides and the amount of rainwater splashing on the heat dissipation openings on both sides of the protective shell, thereby preventing rainwater from entering the protective shell through the heat dissipation openings and affecting the operation of equipment in the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an external DC reactor in one embodiment of the utility model;

[0015] Figure 2 A cross-sectional view of an external DC reactor in one embodiment of the utility model;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the rain shielding component in the external DC reactor;

[0017] Figure 4 for Figure 2 A partial enlarged view of point A in the external DC reactor.

[0018] Legend:

[0019] 1. Protective shell; 2. Reactor body; 3. Heat dissipation port; 4. Rain shield assembly; 5. First damping shaft; 6. Extension plate; 7. Baffle; 8. Connection assembly; 9. Buffer assembly; 10. Fixing clip; 11. Bolt; 12. Dehumidification box; 13. Vent; 14. Drawer placement; 15. Inspection door; 41. Top plate; 42. Drain trough; 71. First plate body; 72. Second plate body; 81. Mounting frame; 82. Second damping shaft; 91. Base; 92. Buffer plate; 93. Buffer spring; 94. Damper. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. 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 cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-4 As shown, an external DC reactor of the utility model comprises a protective shell 1, a reactor body 2 is arranged inside the protective shell 1, heat dissipation ports 3 for heat dissipation and ventilation are opened on both sides of the protective shell 1, and also comprises: a rain shield component 4, the rain shield component 4 is connected to the top of the protective shell 1, and both sides of the rain shield component 4 are connected to the extension plate 6 through the first damping shaft 5; a baffle 7, the baffle 7 is arranged inside the heat dissipation port 3, and the baffle 7 is rotatably connected to the connecting component 8; a buffer component 9, the buffer component 9 is connected between the protective shell 1 and the reactor body 2; the rain shield component 4 comprises a top plate 41, a drainage groove 42 extending in the front-to-back direction is opened on the top plate 41, and the angle between the side groove wall of the drainage groove 42 and the groove bottom is an obtuse angle.

[0024] In this embodiment, when encountering rainy weather, by rotating the baffle plate 7 downward until it stops at an angle covering the heat dissipation port 3, it can play a role of blocking rain, preventing rain from entering the interior of the protective shell 1, and realizing the waterproof function. By rotating the rain shield plate upward until it no longer covers the air vents, the interior of the protective shell 1 can freely dissipate heat and ventilate through the heat dissipation port 3, and water blocking and ventilation do not affect each other. By adopting the drainage groove 42 extending in the front-to-back direction, rainwater can be discharged from the drainage groove 42 on the top plate 41 to the front and rear, reducing the outflow of rainwater from both sides, reducing the amount of rainwater splashing on the heat dissipation ports 3 on both sides of the protective shell 1, and preventing rainwater from entering the protective shell through the heat dissipation holes and affecting the operation of the equipment in the protective shell.

[0025] Among them, rotatable side extension plates 6 are provided on both sides of the top plate 41, and the side extension plates 6 can be extended and retracted according to needs to enhance the rainproof effect. The design is flexible and does not occupy excess placement space.

[0026] like Figure 1 and Figure 2 As shown, specifically, a fixing clip 10 is provided inside the protective shell 1, the reactor body 2 is detachably connected to the fixing clip 10 by bolts 11, and a dehumidification box 12 is provided above the reactor body 2; by using bolts 11 to detachably connect the reactor body 2 to the fixing clip 10, it is convenient to install and disassemble the reactor body 2, and to facilitate later maintenance.

[0027] like Figure 1 and Figure 4 As shown, specifically, the baffle 7 includes a first plate body 71 and a second plate body 72. The first plate body 71 is rotatably connected to the connecting assembly 8. The first plate body 71 is a recessed plate recessed into the protective shell 1, and the second plate body 72 is a raised plate protruding out of the protective shell 1. By adopting the first plate body 71 recessed into the protective shell 1 and the second plate body 72 protruding out of the protective shell 1, when rainwater falls on the first plate body 71, it can smoothly fall through the second plate body 72.

[0028] like Figure 1 and Figure 4 As shown, specifically, the connecting component 8 includes a mounting frame 81, a second damping shaft 82 is arranged inside the mounting frame 81, and the second damping shaft 82 is connected to the first plate body 71; the baffle 7 can be rotated by the second damping shaft 82 to adjust the angle of the baffle 7. When waterproofing is required on rainy days, the baffle 7 is rotated downward to cover the heat dissipation port 3 to prevent rainwater from entering the protective shell 1. When waterproofing is not required, the baffle 7 is rotated upward to expose the heat dissipation port 3 to ensure normal heat dissipation and ventilation in the protective shell 1.

[0029] like Figure 1 and Figure 2As shown, specifically, the buffer assembly 9 includes a base 91 and a buffer plate 92, a buffer spring 93 and a damper 94 are connected between the base 91 and the buffer plate 92, and the base 91 is detachably connected to the protective shell 1 at the bottom; the buffer spring 93 and the buffer plate 92 can buffer and reduce shock on the reactor body 2 above it, thereby enhancing the stability of the reactor body 2.

[0030] like Figure 1 and Figure 2 As shown, specifically, a vent 13 is provided on the dehumidification box 12, and a placement drawer 14 is provided inside the dehumidification box 12, and a desiccant is placed inside the placement drawer 14; by placing the desiccant inside the placement drawer 14, the inside of the protective shell 1 can be dehumidified through the vent 13, and by pulling the placement drawer 14, it can be seen that the placement drawer 14 pulls out the dehumidification box 12, so that the desiccant placed inside the placement drawer 14 can be replaced easily.

[0031] like Figure 1 and Figure 2 As shown, specifically, the protective shell 1 is provided with an inspection door 15 ; the inspection door 15 facilitates the inspection of the internal components of the protective shell 1 .

[0032] like Figure 1 and Figure 3 As shown, specifically, the top plate 41 is higher in the front and lower in the back, and the first damping shaft 5 is detachably connected to the bottom of the top plate 41; by adopting the top plate 41 that is higher in the front and lower in the back, rainwater is allowed to flow down to the rear of the protective shell 1 as much as possible, reducing the amount of rainwater flowing down from the front and splashing onto the inspection door 15, and reducing rainwater entering the protective shell 1 through the inspection door 15. The first damping shaft 5 is detachably connected to the bottom of the top plate 41, so that the first damping shaft 5 can be shielded by the top plate 41.

[0033] Working principle: The staff rotates the baffle plate 7 downward until it stops at an angle that covers the heat dissipation port 3, which plays a role in blocking rain and preventing rainwater from entering the protective shell 1 to achieve a waterproof function. The rain shield is rotated upward until it no longer covers the air vents, and the inside of the protective shell 1 can freely dissipate heat and ventilate through the heat dissipation port 3, and water blocking and ventilation do not affect each other. By adopting a drainage groove 42 extending in the front-to-back direction, rainwater can be discharged from the drainage groove 42 on the top plate 41 to the front and rear, reducing the amount of rainwater flowing down from both sides, reducing the amount of rainwater splashing on the heat dissipation ports 3 on both sides of the protective shell 1, and preventing rainwater from entering the protective shell through the heat dissipation holes and affecting the operation of the equipment in the protective shell.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An external DC reactor, comprising a protective shell (1), a reactor body (2) is arranged inside the protective shell (1), and heat dissipation ports (3) for heat dissipation and ventilation are provided on both sides of the protective shell (1), characterized in that: Also includes: A rain shield component (4), the rain shield component (4) being connected above the protective shell (1), and both sides of the rain shield component (4) being connected to an extension plate (6) via a first damping shaft (5); a baffle (7), the baffle (7) being arranged inside the heat dissipation port (3), the baffle (7) being rotatably connected to a connecting assembly (8); A buffer component (9), the buffer component (9) being connected between the protective shell (1) and the reactor body (2); The rain shield assembly (4) comprises a top plate (41), on which a drainage groove (42) extending in the front-rear direction is provided, and the angle between the side groove wall and the groove bottom of the drainage groove (42) is an obtuse angle.

2. The external DC reactor according to claim 1, characterized in that: A fixing clip (10) is arranged inside the protective shell (1), the reactor body (2) is detachably connected to the fixing clip (10) via bolts (11), and a dehumidification box (12) is arranged above the reactor body (2).

3. The external DC reactor according to claim 1, characterized in that: The baffle (7) comprises a first plate body (71) and a second plate body (72); the first plate body (71) is rotatably connected to the connecting assembly (8); the first plate body (71) is a recessed plate recessed into the protective shell (1); and the second plate body (72) is a raised plate raised out of the protective shell (1).

4. The external DC reactor according to claim 1, characterized in that: The connecting assembly (8) comprises a mounting frame (81), a second damping rotating shaft (82) is arranged inside the mounting frame (81), and the second damping rotating shaft (82) is connected to the first plate body (71).

5. The external DC reactor according to claim 1, characterized in that: The buffer assembly (9) comprises a base (91) and a buffer plate (92); a buffer spring (93) and a damper (94) are connected between the base (91) and the buffer plate (92); and the bottom of the base (91) is detachably connected to the protective shell (1).

6. The external DC reactor according to claim 2, characterized in that: The dehumidification box (12) is provided with a vent hole (13), and a placement drawer (14) is provided inside the dehumidification box (12), and a desiccant is placed inside the placement drawer (14).

7. The external DC reactor according to claim 1, characterized in that: The protective shell (1) is provided with an inspection door (15).

8. The external DC reactor according to claim 1, characterized in that: The top plate (41) is higher at the front and lower at the back, and the first damping shaft (5) is detachably connected to the bottom of the top plate (41).

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