External heat dissipation device and switch electrical equipment using same

Abstract

The utility model provides an external heat radiation device and a switch electrical device using the same, comprising a box body, the box body comprises an air inlet channel and an air outlet channel, the lower end of the air inlet channel is provided with an installation part used for being installed and connected with a switch cabinet, and the installation part is provided with an air inlet; one side face of the air inlet channel is provided with an operation opening, and the operation opening is provided with a detachable operation plate. The air outlet channel is arranged on the front side face of the upper end of the air inlet channel and communicates with the air inlet channel. An air outlet is formed in the upper side face of the air outlet channel, and an avoiding area is arranged below the air outlet channel. The air draft fan is arranged in the air outlet channel and corresponds to the air outlet, and the air draft fan is provided with an independent first circuit on-off switch. The external heat dissipation device can be assembled on the switch cabinet, air draft processing is carried out on the switch cabinet, heat in the switch cabinet is exhausted, and heat dissipation and cooling of internal mechanism elements in the switch cabinet are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch electrical equipment, and in particular relates to an external heat dissipation device and a switch electrical equipment using the heat dissipation device. Background Art

[0002] Switchgear is an electrical device whose main function is to open and close, control and protect electrical equipment during the power generation, transmission, distribution and energy conversion of the power system. The internal mechanism of the switchgear will continue to generate heat during operation. The heat dissipation effect inside the switchgear is poor, resulting in excessively high internal temperature of the switchgear. The internal mechanism components are easily damaged when operating in a high temperature environment for a long time, which reduces the service life. Utility Model Content

[0003] In order to overcome the above technical defects, the utility model provides an external heat dissipation device and a switch electrical equipment using the heat dissipation device, which can solve the technical problem of how to dissipate heat for a switch cabinet in the prior art.

[0004] The utility model is implemented according to the following technical solutions:

[0005] The utility model provides an external heat dissipation device, which comprises:

[0006] The box body includes an air inlet channel and an air outlet channel, wherein:

[0007] The lower end of the air inlet channel is provided with a mounting portion for mounting and connecting with the switch cabinet, and the mounting portion is provided with an air inlet; a side surface of the air inlet channel is provided with an operation port, and the operation port is provided with a detachable operation panel;

[0008] The air outlet channel is arranged on the front side of the upper end of the air inlet channel and is connected to the air inlet channel; an air outlet is arranged on the upper side of the air outlet channel, and a avoidance area is arranged below the air outlet channel;

[0009] An exhaust fan is arranged in the air outlet channel and corresponds to the air outlet, and the exhaust fan is provided with an independent first circuit on-off switch.

[0010] Compared with the prior art, the external heat dissipation device of the present application can be assembled on the switch cabinet to perform exhaust treatment on the switch cabinet, extract the heat inside the switch cabinet, and realize heat dissipation and cooling of the internal mechanism components in the switch cabinet. At the same time, the avoidance area avoids the pressure relief port of the switch cabinet, and reserves sufficient space for the pressure relief of the switch cabinet; and the mounting part is operated through the operating port on the side of the air inlet channel to connect and fix the mounting part to the switch cabinet; in addition, the exhaust fan is provided with an independent first circuit on-off switch. During maintenance, the exhaust fan can be repaired and maintained by turning off the power to the exhaust fan. There is no need to turn off the power to the switch cabinet during maintenance, thereby avoiding local power outages in the power consumption area.

[0011] In one embodiment, the air inlet is provided with an air inlet filter plate.

[0012] In one embodiment, the operation panel is connected to the operation port by bolts;

[0013] The periphery of the air inlet is provided with a plurality of mounting holes for connecting with the switch cabinet.

[0014] In one embodiment, a wire hole is provided on the upper side of the air outlet channel.

[0015] In one embodiment, a vertical distance from a lower end of the air outlet channel to a lower end of the air inlet channel is 25 to 35 cm.

[0016] In one embodiment, the upper side of the air inlet channel is further provided with a pressure discharge port, the pressure discharge port is provided with a pressure discharge plate, the pressure discharge plate has a first long side and a second long side, the first long side is fixedly connected to the air inlet channel by a metal screw, and the second long side is connected to the air inlet channel by a plastic screw;

[0017] The pressure discharge plate is also provided with a plurality of strip holes, and the plurality of strip holes are distributed along the first long side.

[0018] The utility model also provides a switch electrical device, which includes:

[0019] The switch cabinet has an exhaust vent and a pressure relief vent on the top;

[0020] As described above, the external heat dissipation device is arranged on the top of the switch cabinet, and the air inlet of the external heat dissipation device is connected with the air outlet, so as to exhaust air from the switch cabinet; the avoidance area of ​​the external heat dissipation device is arranged correspondingly above the pressure relief port.

[0021] In one embodiment, a mounting opening is provided on the front side of the lower end of the switch cabinet;

[0022] The switch electrical equipment also includes an embedded heat dissipation device, which is arranged at the installation opening and located in the switch cabinet and is used for supplying air to the switch cabinet.

[0023] In one embodiment, the embedded heat dissipation device comprises:

[0024] A fan cover is installed on the installation opening and is located in the switch cabinet; the fan cover is provided with a receiving cavity, and the receiving cavity is communicated with the installation opening;

[0025] An air supply fan, which is arranged in the accommodating chamber, and the air supply fan is provided with an independent second circuit on-off switch;

[0026] A cover plate is detachably arranged at the installation opening, and an air inlet area is arranged on the cover plate.

[0027] In order to better understand and implement the present invention, the following figure is combined with the accompanying drawings to explain the present invention in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 It is a three-dimensional diagram of the external heat dissipation device of the utility model;

[0030] Figure 2 It is a side sectional view of the external heat dissipation device of the utility model;

[0031] Figure 3 It is a schematic diagram of the switch electrical equipment of the present utility model.

[0032] Description of reference numerals:

[0033] 10 housing, 110 air inlet channel, 111 mounting portion, 1111 air inlet, 1112 operating port, 1113 operating panel, 1114 air inlet filter plate, 1115 mounting hole, 1116 pressure relief port, 1117 pressure relief plate, 120 air outlet channel, 121 air outlet, 1211 first long side, 1212 second long side, 1213 strip hole, 122 avoidance zone, 123 wire hole, 20 exhaust fan, 30 switch cabinet, 321 fan cover, 322 air supply fan, 323 cover plate DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0036] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiments of the present application.

[0037] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0038] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0040] The utility model provides an external heat dissipation device, which comprises: a box body 10, which comprises an air inlet channel 110 and an air outlet channel 120, wherein the lower end of the air inlet channel 110 is provided with a mounting portion 111 for mounting and connecting with a switch cabinet 30, and the mounting portion 111 is provided with an air inlet 1111; one side of the air inlet channel 110 is provided with an operation port 1112, and the operation port 1112 is provided with a detachable operation panel 1113; the air outlet channel 120 is arranged on the front side of the upper end of the air inlet channel 110 and is communicated with the air inlet channel 110; the upper side of the air outlet channel 120 is provided with an air outlet 121, and a avoidance area 122 is provided below the air outlet channel 120; an exhaust fan 20 is arranged in the air outlet channel 120 and is arranged corresponding to the air outlet 121, and the exhaust fan 20 is provided with an independent first circuit on-off switch.

[0041] Compared with the prior art, the external heat dissipation device of the present application can be assembled on the switch cabinet 30 to perform exhaust treatment on the switch cabinet 30, extract the heat inside the switch cabinet 30, and achieve heat dissipation and cooling of the internal components in the switch cabinet 30. At the same time, the avoidance area 122 avoids the pressure relief port of the switch cabinet 30, and reserves sufficient space for the pressure relief of the switch cabinet 30; and the mounting portion 111 is operated through the operating port 1112 on the side of the air inlet channel 110 to connect and fix the mounting portion 111 to the switch cabinet 30; in addition, the exhaust fan 20 is provided with an independent first circuit on-off switch. During maintenance, the exhaust fan 20 can be repaired and maintained by turning off the power to the exhaust fan 20. There is no need to turn off the power to the switch cabinet 30 during maintenance, thereby avoiding local power outages in the power consumption area.

[0042] During use, the external cooling device may exhaust the switch cabinet 30 only when needed. Then, when the external cooling device is not working, dust in the external environment may enter the switch cabinet 30 through the air outlet 121. In order to avoid dust accumulation in the switch cabinet 30, in one embodiment, the air inlet 1111 is provided with an air inlet filter plate 1114, and the dust entering the switch cabinet 30 through the air inlet 1111 is isolated by the air inlet filter plate.

[0043] In one embodiment, the operating panel 1113 is connected to the operating port 1112 by bolts; a plurality of mounting holes 1115 for connecting to the switch cabinet 30 are provided on the periphery of the air inlet 1111; during the installation of the external heat dissipation device to the switch cabinet 30, the bolts on the operating panel 1113 are loosened and removed to expose the operating port 1112, and the worker then extends his hand into the air inlet channel 110 through the operating port 1112, and connects and fixes the mounting hole 1115 to the switch cabinet 30 with the help of a locking member, and finally installs the operating panel 1113 back to the operating port 1112, thus completing the entire installation process.

[0044] In one embodiment, a wire hole 123 is provided on the upper side of the air outlet channel 120 so that the wire of the independent first circuit on-off switch can pass through the wire hole 123 to be electrically connected to the exhaust fan 20, and the wire hole 123 has a tower-shaped sealing ring.

[0045] In one embodiment, the vertical distance from the lower end of the air outlet channel 120 to the lower end of the air inlet channel 110 is 25 to 35 cm, so as to reserve sufficient space for the pressure relief port of the switch cabinet 30 to relieve pressure and avoid collision with the external heat dissipation device when the pressure relief plate of the switch cabinet 30 is opened.

[0046] In one embodiment, a pressure relief port 1116 is further provided on the upper side of the air inlet channel 110, and the pressure relief port 1116 is provided with a pressure relief plate 1117, and the pressure relief plate 1117 has a first long side 1211 and a second long side 1212, the first long side 1211 is fixedly connected to the air inlet channel 110 by metal screws, and the second long side 1212 is connected to the air inlet channel 110 by plastic screws; the pressure relief plate 1117 is also provided with a plurality of strip holes 1213, and the plurality of strip holes 1213 are distributed along the first long side 1211.

[0047] Specifically, the switch cabinet 30 needs to be depressurized when an internal accident occurs. During the depressurization process, high-temperature and high-pressure gas is generated. The high-temperature and high-pressure gas impacts the pressure relief plate 1117 to open the pressure relief plate 1117. The high-temperature and high-pressure gas is released upward from the pressure relief port 1116 to avoid injuring operators in the front, back, left, and right. The plastic screws are melted by the impact of the high-temperature and high-pressure gas and then quickly open the pressure relief plate 1117. The metal screws always connect the pressure relief plate to the air inlet channel 110.

[0048] The utility model also provides a switch electrical equipment, which includes: a switch cabinet 30, with an exhaust port and a pressure relief port on the top; the external heat dissipation device as described above, which is arranged on the top of the switch cabinet 30, and the air inlet 1111 of the external heat dissipation device is connected with the exhaust port, so as to exhaust air from the switch cabinet 30; the avoidance area 122 of the external heat dissipation device is correspondingly arranged above the pressure relief port.

[0049] Specifically, when the switch cabinet 30 is in operation, the exhaust fan 20 is powered on and operated under the closed action of the independent first circuit on-off switch, and the air in the switch cabinet 30 enters the air inlet channel 110 from the air inlet 1111, and is drawn out to the outside of the switch cabinet 30 under the action of the exhaust fan 20 for heat dissipation. During maintenance, the exhaust fan 20 is powered off under the disconnection action of the independent first circuit on-off switch, and the maintenance personnel can perform maintenance on the exhaust fan 20 by removing the cover plate on the upper side of the air outlet channel 120. During the maintenance process, there is no need to power off the switch cabinet 30, thereby avoiding local power outages in the power consumption area.

[0050] In one embodiment, a mounting opening is provided on the front side of the lower end of the switch cabinet 30; the switch electrical equipment further comprises an embedded heat dissipation device, which is arranged at the mounting opening and located in the switch cabinet 30, and is used to supply air to the switch cabinet 30. The embedded heat dissipation device is installed in the switch cabinet 30 in an embedded manner, supplies air to the lower end of the switch cabinet 30, and cooperates with the external heat dissipation device to dissipate heat from the switch cabinet.

[0051] In one embodiment, the embedded heat dissipation device includes: a fan cover 321, which is installed on the installation port and located in the switch cabinet 30; the fan cover 321 is provided with a receiving cavity, and the receiving cavity is connected with the installation port; an air supply fan 322, which is arranged in the receiving cavity, and the air supply fan 322 is provided with an independent second circuit on-off switch; a cover plate 323, which is detachably arranged at the installation port, and the cover plate 323 is provided with an air inlet area. Specifically, the air supply fan 322 is used to supply or exhaust air to the switch cabinet 30, drive the air flow in the switch cabinet 30, and realize the heat dissipation and cooling of the internal components of the switch cabinet 30; and the air supply fan 322 is provided with an independent second circuit on-off switch. During maintenance, the air supply fan 322 can be repaired and maintained by disconnecting the power supply fan 322 and removing the cover plate 323. During the maintenance process, it is not necessary to disconnect the power supply to the switch cabinet 30, so as to avoid local power outages in the power consumption area.

[0052] In addition, the protection level of the external heat dissipation device of the present application is IP4X.

[0053] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. An external heat dissipation device, characterized in that: include: The box body includes an air inlet channel and an air outlet channel, wherein: The lower end of the air inlet passage is provided with a mounting portion for mounting and connecting with the switch cabinet, and the mounting portion is provided with an air inlet; a side surface of the air inlet passage is provided with an operation port, and the operation port is provided with a detachable operation panel; The air outlet channel is arranged on the front side of the upper end of the air inlet channel and is connected to the air inlet channel; an air outlet is arranged on the upper side of the air outlet channel, and a avoidance area is arranged below the air outlet channel; An exhaust fan is arranged in the air outlet channel and corresponds to the air outlet, and the exhaust fan is provided with an independent first circuit on-off switch.

2. The external heat dissipation device according to claim 1, characterized in that: The air inlet is provided with an air inlet filter plate.

3. The external heat dissipation device according to claim 1, characterized in that: The operation panel is connected to the operation port by bolts; The periphery of the air inlet is provided with a plurality of mounting holes for connecting with the switch cabinet.

4. The external heat dissipation device according to claim 1, characterized in that: A wire hole is provided on the upper side of the air outlet channel.

5. The external heat dissipation device according to claim 1, characterized in that: The vertical distance from the lower end of the air outlet channel to the lower end of the air inlet channel is 25 to 35 cm.

6. The external heat dissipation device according to claim 1, characterized in that: The upper side of the air inlet channel is also provided with a pressure discharge port, and the pressure discharge port is provided with a pressure discharge plate, and the pressure discharge plate has a first long side and a second long side, the first long side is fixedly connected to the air inlet channel by a metal screw, and the second long side is connected to the air inlet channel by a plastic screw; The pressure discharge plate is also provided with a plurality of strip holes, and the plurality of strip holes are distributed along the first long side.

7. A switch electrical device, characterized in that: include: The switch cabinet has an exhaust vent and a pressure relief vent on the top; The external heat dissipation device as described in any one of claims 1 to 6, wherein the external heat dissipation device is arranged on the top of the switch cabinet, and the air inlet of the external heat dissipation device is connected to the air outlet, so as to perform exhaust treatment on the switch cabinet; and the avoidance area of ​​the external heat dissipation device is correspondingly arranged above the pressure relief port.

8. The switch electrical device according to claim 7, characterized in that: A mounting opening is provided on the front side of the lower end of the switch cabinet; The switch electrical equipment also includes an embedded heat dissipation device, which is arranged at the installation opening and located in the switch cabinet and is used for supplying air to the switch cabinet.

9. The switchgear according to claim 8, characterized in that: The embedded heat dissipation device comprises: A fan cover is installed on the installation opening and is located in the switch cabinet; the fan cover is provided with a receiving cavity, and the receiving cavity is communicated with the installation opening; An air supply fan, which is arranged in the accommodating chamber, and the air supply fan is provided with an independent second circuit on-off switch; A cover plate is detachably arranged at the installation opening, and an air inlet area is arranged on the cover plate.

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