CN220066511U - A low-voltage electrical cabinet for outdoor electrical infrastructure - Google Patents

Abstract

The utility model relates to a low-voltage electrical cabinet for an outdoor electrical infrastructure, and belongs to the technical field of electrical equipment. The utility model realizes the integration of the cabinet body in the prior outdoor electric infrastructure system and ensures the timely release of the hot air pressure in the cabinet body by functionally dividing the internal space of the single cabinet body, and solves the problems that the outdoor electric infrastructure system occupies large space and has high cost, some circuits are exposed between electric cabinets and the internal hot air pressure rises suddenly in short time when short circuit explosion occurs in equipment in the cabinet of the outdoor electric infrastructure system, but the hot air pressure cannot be released timely.

Description

A low voltage electrical cabinet for outdoor electrical infrastructure

Technical field

The utility model relates to a low-voltage electrical cabinet used for outdoor electrical infrastructure, belonging to the technical field of electrical equipment.

Background technique

Outdoor electrical infrastructure systems, such as electrical equipment related to road command, are equipped with multiple electrical cabinets, each electrical cabinet is equipped with separate electrical related components, resulting in a large space and high cost; and some lines are exposed in the electrical cabinet in between, it is easy to be damaged by the environment or man-made damage; furthermore, if the equipment in the cabinet of the outdoor electrical infrastructure system is short-circuited and explodes, the internal hot air pressure will rise sharply for a short time. If the hot air pressure is not released in time, it will cause damage to the equipment in the cabinet. Severe damage occurs, which may endanger nearby pedestrians.

Utility model content

The purpose of this utility model is to propose a low-voltage electrical cabinet for outdoor electrical infrastructure in view of the problems existing in the above-mentioned prior art, functionally divide the internal space of a single cabinet, and introduce gas flow on this basis The system realizes the integration of cabinets in the outdoor electrical infrastructure system and ensures that the hot air pressure in the cabinet can be released in time.

In order to achieve the above objectives, the present invention first provides a low-voltage electrical cabinet for outdoor electrical infrastructure, including a single cabinet, and also includes creating a safe air flow path to release the hot air pressure in the cabinet to the cabinet in a short time. At least two gas flow systems outside the body, at least part of each of the gas flow systems is provided on the outer wall of the cabinet; each of the gas flow systems includes hot air pressure flowing in the cabinet along a safe air flow path Three guide parts that offset at least part of the hot air pressure during the process. The three guide parts and the outer wall of the cabinet jointly constitute the air flow safety path, and the three guide parts are arranged in the air flow. Different positions of the flow safety path are in contact with the hot air pressure in turn; the cabinet includes four components respectively used to configure low-voltage electrical metering and distribution equipment, configure low-voltage control equipment, configure energy storage equipment and extend to one or more There are wire channels in each line trough and differentiated spaces configured with information interaction equipment. All of the differentiated spaces are located in different spatial areas within the cabinet, and each of the differentiated spaces is configured with at least one of the gas flow systems.

In order to achieve the above purpose, the present invention further provides a low-voltage electrical cabinet for outdoor electrical infrastructure, including a single cabinet, and also includes creating a safe air flow path to release the hot air pressure in the cabinet to the cabinet in a short time. A single gas flow system outside the body, at least a part of the gas flow system is provided on the outer wall of the cabinet; the gas flow system includes at least a partial offset of the hot air pressure in the cabinet when it flows along the air flow safety path. The three guide parts of the hot air pressure, the three guide parts and the outer wall of the cabinet jointly constitute the air flow safety path, and the three guide parts are arranged at different positions of the air flow safety path and in sequential contact with the hot air pressure; the cabinet includes four wire channels respectively used for configuring low-voltage electrical metering and distribution equipment, configuring low-voltage control equipment, configuring energy storage equipment, and extending to one or more line troughs. , a differentiated space for configuring information interaction equipment, all of the differentiated spaces are interconnected and located in different spatial areas within the cabinet, and only one of the differentiated spaces is configured with the gas flow system.

In some embodiments, the cabinet further includes: a door provided on each corresponding differentiated space and used to open the corresponding differentiated space.

In some embodiments, the cabinet includes:

A first differentiated space for configuring the low-voltage electrical metering and the power distribution equipment. The low-voltage electrical metering and the power distribution equipment adopt electric meters and circuit breaker panels respectively. The first differentiated space includes a space for accommodating the a first divided one-branch space of the electric meter and a first divided two-branch space accommodating the circuit breaker panel;

The cabinet also includes:

A first main door provided on the first differentiated space and used to open the first differentiated space;

A first auxiliary door provided on the first divided into a branch space and used to open the first divided into a branch space; and

A second auxiliary door is provided on the first divided into two branch spaces and used to open the first divided into two branch spaces.

In some embodiments, at least one door is configured with a closing mechanism that tightly closes the door and the corresponding opening portion of the cabinet, and the door is connected to the associated opening portion of the cabinet through the corresponding closing mechanism. In the closed state or the released state, the closing mechanism can only be opened by authorized personnel of the corresponding door rear element.

In some embodiments, the cabinet includes:

A third differentiated space for configuring the energy storage device and wire channels extending to one or more line troughs, the energy storage device; the energy storage device uses a first battery that provides backup power to other differentiated spaces and The second battery, and the number of the wire channels is two, and they are respectively a first wire channel that provides power connection components to the first differentiated space, and a second wire channel that provides power connection components to other differentiated spaces except the first differentiated space. lane; the third divided space includes a third divided branch space for accommodating the first lane and a third divided two branch space for accommodating the second lane;

The cabinet also includes:

a third main door provided on the third differentiated space and used to open the first differentiated space;

A first auxiliary door provided on the third divided into a branch space and used to open the third divided into a branch space; and

A second auxiliary door is provided on the two-branch space in the third area and used to open the two-branch space in the third area.

In some embodiments, the cabinet further includes: at least one power connector disposed on at least one side wall of the cabinet, wherein one type of power connector is configured to receive power from an external power source and transmit the power To the components within the cabinet, another type of power connector is configured to transmit power from the components within the cabinet to at least one external power device.

In some embodiments, the three guide parts are an inner plate, a plurality of baffles, and a surface plate in order of contact with the hot air pressure. The inner plate is fixedly provided on at least one of the cabinets. On the inner surface of the wall with openings, the inner panel and the adjacent main panel of the cabinet are separated by a first distance, and all the baffles are arranged on the outer surface of the wall of the cabinet and are adjacent to the The openings and openings in the wall are all maintained in a tilted posture with the same direction. The surface plate is arranged on the outer surface of the wall of the cabinet and is located outside the baffle and is spaced a second distance from the outer surface of the wall of the cabinet. distance, the surface plate and the baffle cooperate with each other and jointly form a flow guide structure that guides the hot air pressure to flow along the outer surface of the wall of the cabinet.

In some embodiments, one end of each baffle is rotatably disposed on the outer surface of the wall of the cabinet;

When the baffle contacts the hot air pressure, the baffle moves from a closed position to an open position in an outward direction away from the interior of the cabinet;

When the hot air pressure is completely released, the baffle moves from the open position to the closed position in an inward direction close to the interior of the cabinet.

In some embodiments, the top edge and both sides of the surface panel are fixedly connected to the outer surface of the wall of the cabinet, so that the surface panel and the wall of the cabinet form a ventilation structure with an opening. The opening of the ventilation structure is located at the bottom edge of the surface panel.

Compared with the existing technology, the significant advantages of this utility model are:

The low-voltage electrical cabinet of this utility model functionally divides the internal space of a single cabinet. Considering that too many separated spaces are caused by too fine a functional division, it is not conducive to actual manufacturing and installation. Based on the general different configurations of different electrical equipment, The unit's staff performs installation and maintenance, the areas where the electrical equipment functions, and the space separation will be considered due to the internal use of partitions that occupy the internal space of the cabinet. The cabinet is divided into four for low-voltage electrical metering and distribution. electrical equipment, low-voltage control equipment, energy storage equipment, wire channels extending to one or more line troughs, and information interaction equipment. This enables one cabinet to accommodate multiple electrical equipment and reduces the need to accommodate some outdoor equipment. The space requirements for electrical infrastructure and the visual impact of various cabinets require a small overall footprint. All differentiated spaces are located in different spatial areas within the cabinet to avoid mutual interaction between equipment or components in low-voltage electrical cabinets and reduce circuit exposure. Outside the cabinet, it is easy to install, maintain and repair, and reduces the costs associated with manufacturing and installing multiple cabinets to accommodate such equipment; on the basis of the functional division of the cabinet space, a gas flow system is configured, that is, through three The cooperation between the guide part and the cabinet forms a safe path for air flow, allowing the hot air pressure to be discharged from the inside of the cabinet to the outside of the cabinet. In this process, by regulating the flow direction of the hot air pressure in the differentiated space of the cabinet, the damage of the hot air pressure to the components inside the cabinet is also reduced. Furthermore, the three guide parts can reduce the damage of the hot air pressure to the cabinet itself; its beneficial effects are: realizing the integration of the cabinet in the current outdoor electrical infrastructure system and ensuring that the hot air pressure in the cabinet can be released in time, solving the problem of The outdoor electrical infrastructure system occupies a large space and is expensive, some lines are exposed between electrical cabinets, and if the equipment in the cabinet of the outdoor electrical infrastructure system is short-circuited and explodes, the internal hot air pressure will rise sharply in a short time, but it cannot be done in time. Issues with releasing hot air pressure.

Description of the drawings

Figure 1 is a perspective view of a low-voltage electrical cabinet in an embodiment of the present invention.

Figure 2A is a front view of the low-voltage electrical cabinet in Figure 1.

FIG. 2B is a front view of a low-voltage electrical cabinet with multiple doors according to an embodiment of the present invention.

Figure 3A is a side view of the low-voltage electrical cabinet in Figure 1.

Figure 3B is another side view of the low-voltage electrical cabinet in Figure 1 .

Figure 4 is a perspective view of another low-voltage electrical cabinet according to an embodiment of the present invention.

FIG. 5A is a side view of the low-voltage electrical cabinet in FIG. 4 .

FIG. 5B is another side view of the low-voltage electrical cabinet in FIG. 4 .

Figure 6 is a side cross-sectional view of the gas flow system in one embodiment of the present invention.

Figure 7 is a side cross-sectional view of the gas flow system in an embodiment of the present invention where a short-circuit explosion occurs.

Figure 8 is a plan view of the gas flow system in one embodiment of the present invention.

Figure 9 is a rear view of the gas flow system in one embodiment of the present invention.

Figure 10 is a front view of the gas flow system in one embodiment of the present invention.

Figure 11 is a partial view of a low-voltage electrical cabinet with a gas flow system according to an embodiment of the present invention.

Detailed ways

Embodiment 1

The low-voltage electrical cabinet of the utility model is used as a part of the outdoor electrical infrastructure.

As shown in Figure 1, a low-voltage electrical cabinet 100 is provided. The low-voltage electrical cabinet 100 includes a base 102 and a protective cover 104. The base 102 and the protective cover 104 are located at the bottom and top of the low-voltage electrical cabinet respectively; in addition, the low-voltage electrical cabinet 100 includes a base 102 and a protective cover 104. The electrical cabinet also includes a plurality of differentiated spaces, for example, a first differentiated space 110 , a second differentiated space 120 , a third differentiated space 130 and a fourth differentiated space 140 . Each differentiated space may include different components, for example, different electronic components may be arranged in each differentiated space, and all differentiated spaces are located in different spatial areas within the cabinet. In one embodiment, each differentiated space of the low-voltage electrical cabinet 100 performs different functions to facilitate targeted care and maintenance.

The low-voltage electrical cabinet 100 is made of a wide range of materials. For example, in one embodiment, the low-voltage electrical cabinet 100 is made of stainless steel. In other embodiments, the low-voltage electrical cabinet 100 can also be made of plastic or a composite material with a certain hardness. become. The finished shell of the low-voltage electrical cabinet 100 should be strong and durable and able to adapt to harsh outdoor environments, such as hail and dust, to protect the internal components of the low-voltage electrical cabinet 100 .

In one embodiment, low-voltage electrical metering and distribution equipment is configured in the first compartment 110 , low-voltage control equipment is configured in the second compartment 120 , and energy storage equipment for storing electricity is configured in the third compartment 130 and wire channels extending to one or more wire slots. Communication equipment for information exchange is arranged in the fourth differentiated space 140 . Therefore, compared with the existing technology that uses multiple low-voltage electrical cabinets to configure low-voltage electrical metering and distribution equipment, low-voltage control equipment, energy storage equipment, communication equipment, etc., the low-voltage electrical cabinet 100 serves as a single cabinet. The structural space of the existing single low-voltage electrical cabinet is improved, so that the low-voltage electrical cabinet 100 can integrate the above-mentioned multiple different components, achieving the purpose of arranging multiple components in the low-voltage electrical cabinet 100 in a limited space. Therefore, a single low-voltage electrical cabinet The use of 100 reduces the number of low-voltage electrical cabinets that should be used, reduces the area of outdoor land occupied by low-voltage electrical cabinets, provides additional space for other equipment, and also reduces economic costs. Moreover, the low-voltage electrical cabinet 100 The internal space layout is reasonable and more beautiful.

As shown in FIG. 2A , in one embodiment, a front surface of a low-voltage electrical cabinet 100 is provided, an electric meter 212 and a circuit breaker panel 214 are disposed in the first compartment 110 , and a low-voltage control device 222 is disposed in the second compartment 120 . , for example, a control device for controlling roadside lights and one or more electrical transfer switches for connection to a generator or other supporting power source.

The first battery 232A, the second battery 232B and the first wire channel 233 and the second wire channel 235 are configured in the third partition space 130. The first wire channel 233 and the second wire channel 235 can provide access to various power service entrances and distribution. Interfaces for electrical wiring conduits or combinations thereof. The first battery 232A and the second battery 232B are used to provide continuous power to various components contained in the low-voltage electrical cabinet 100 (eg, components contained in the fourth compartment 140) in the event of power loss or other disturbances, therefore , the low-voltage electrical cabinet 100 can provide power to electronic component equipment, such as an electronic monitoring system or a wireless communication system contained in the low-voltage electrical cabinet 100, in the event of a normal power supply system failure.

In one embodiment, different components in the first compartmentalized space 110 , the second differentiated space 120 , the third differentiated space 130 and the fourth differentiated space 140 are all replaceable, so that a single group of components can be removed and not used. Different components can be replaced without affecting the use of other components in each differentiated space.

As mentioned above, the third divided space 130 includes the first lane 233 and the second lane 235 . The first wireway 233 provides power components (eg, wires, cables, or other electrical connectors) to the first differentiated space 110 , and the second wireway 235 may provide components for power distribution to other differentiated spaces within the low-voltage electrical cabinet 100 ( For example, wires, cables or other electrical connectors). Advantageously, this design can separate the low-voltage electrical metering and distribution equipment in the first differentiated space 110 of the low-voltage electrical cabinet 100 from components of other differentiated spaces, and this separation can serve as a safety precaution. For example, such separation may allow users (eg, personnel) to know which specific area they are in the low voltage electrical cabinet 100 .

In one embodiment, each differentiated space has one or more doors, such as generally shown in Figure 1 . Figure 2B provides an exemplary view of a front surface 202A of a low voltage electrical cabinet 100 having a plurality of doors. As shown in Figures 5A-6, each door may include a handle 600, and each differentiated space may include one or more doors to provide shelter from external forces (eg, rain) and also provide a safety feature. to reduce unnecessary damage to internal components. In one embodiment, the door may be equipped with one or more windows 106 . As shown in FIGS. 2A and 2B , the first differentiated space 110 may include two doors (door 216A and door 216B), the second differentiated space 120 may include a door 226 , and the third differentiated space 130 may include a door 236 . In addition, the differentiated space may also include one or more inner doors, such as the door 238A and the door 238B of the third differentiated space 130, where the doors 238A and 238B are represented by dotted lines to illustrate that they may be located behind the door 236. For example, if With door 236 open, the user can access doors 238A and 238B.

As shown in Figure 1, in one embodiment, one or more doors have a closing mechanism 160. The closing mechanism 160 is intended to securely close the door and its attached portion; without the closing mechanism 160, the door and its attached portion can be easily opened; each closing mechanism 160 can be the same closing mechanism structure, or one or more Each closing mechanism 160 may include different closing mechanism structures. The closing mechanism 160 may be a latch. In one embodiment, the closing mechanism 160 may be used to reduce the chance of inadvertent opening of the corresponding door. Additionally, the closing mechanism 160 may include one or more security measures (e.g., via scanning devices) to limit access to authorized personnel. .

As shown in FIGS. 1 and 2A and 2B, in the first partition space 110, the first partition space includes a first partition branch space for accommodating the electric meter and a first partition two branch space for accommodating the circuit breaker panel, door 216A. As the first auxiliary door, it is arranged on the first divided branch space and is used to open the door of the first divided branch space. Therefore, 216A can provide access to the electric meter 212; as the second auxiliary door, door 216B is arranged Door 216B may provide access to the circuit breaker panel 214 on the first divided two-leg space and for opening the first divided two-leg space door. The first differentiated space 110 may include any number of doors. For example, first differentiated space 110 may include a single door for electric meter 212 and circuit breaker panel 214 . Rather, the first differentiated space 110 circuit breaker panel 214 may include more than two doors, such as multiple doors for accessing different portions of the circuit breaker panel 214 . Similarly, with respect to the second differentiated space 120, a door 226 may provide access to one or more panels contained within the differentiated space. Additionally, the third differentiated space 130 may include a plurality of doors, with each door providing access to a different portion of the third differentiated space 130 .

Regarding the third differentiated space 130, door 236 may provide general access to the third differentiated space 130, and doors 238A, 238B may further provide access to the first lane 233 and the second lane 235, respectively. In one embodiment, a user may access first electrical raceway 233 through door 236 and door 238A, and access second electrical raceway 235 through door 236 and door 238B. In one embodiment, the one or more closing mechanisms may include one or more fasteners located around the door. For example, the closing mechanism for doors 238A, 238B may include a plurality of screws located around the perimeter of doors 238A, 238B to securely secure the doors. Therefore, the door is in a tightly closed state or a loosened state with the associated opening portion of the cabinet through the corresponding closing mechanism.

In one embodiment, a user may access portions of the low voltage electrical cabinet 100 based on the type of user or the action the user is performing. Specifically, access may be provided through a closing mechanism located on or near the door. For example, components contained behind doors 216A and 238A may only be accessible by electrical service providers working on electrical service components and behind-the-door components, and components contained behind doors 226 and 238B may only be accessible by users working on electrical distribution. access. The low voltage electrical cabinet 100 provides similar safety advantages of locating these components in separate and distinct cabinets by separating the low voltage service and distribution components in order to provide a safety measure that reduces the risk of a user accidentally exposing one or the other. As a further example, an electrical service provider may not have access to fourth compartmentalized space 140, however, users engaged in surveillance and communications distribution may access fourth compartmented space 140 and have restricted access to elements included behind door 216A and door 238A. The ability to limit user access as described herein advantageously prevents accidental exposure or tampering of elements.

As FIG. 3A provides an exemplary view of the side surface 302A of the low-voltage electrical cabinet 100, in one embodiment, the side surface 302A may be located on a side adjacent to the second differentiated space 120. FIG. 3B provides an exemplary view of side surface 302B of low voltage electrical cabinet 100 . As shown in Figures 3A and 3B, side surface 302A may include one or more power connectors, such as power connector 152, power connector 154, and power connector 156, while side surface 302B may not include one or more power connectors, such as power connector 152. Power connector 154 and power connector 156. Furthermore, in one embodiment, the side surface 302A and the side surface 302B relate to the fourth differentiated space 140 and the panel 108 . In one embodiment, the doors of the fourth differentiated space 140 on both side surfaces 302A and 302B may provide access to the same differentiated space.

In one embodiment, the low voltage electrical cabinet 100 may include partitioning components for separating components in distinct spaces within the low voltage electrical cabinet 100 . As shown in FIGS. 3A and 3B , the components in the first distinguishing space 110 , the second distinguishing space 120 and the third distinguishing space 130 can be separated from the components in the fourth distinguishing space by the separating component 246 , that is, the separating component 246 can Designed to provide a barrier between elements contained within the first, second, and third differentiated spaces 110 , 120 , and 130 and the fourth differentiated space 140 . Spacer component 246 may be made from a variety of materials, such as non-conductive materials or metal alloys. In some cases, the separation member 246 includes one or more open holes to transmit power, other signals, or other signals between the first, second, and third 130 and fourth 140 differentiated spaces 110 , 120 , 140 . other. For example, the partition member 246 includes one or more openings to allow power transmission between the first battery 232A, the first battery 232B and the fourth differentiated space 140 .

The low voltage electrical cabinet 100 includes one or more power connectors, such as power connector 152, power connector 154, and power connector 156, to enable providing or receiving power under various circumstances. In one embodiment, the power connector 152 may be configured to receive power, such as to provide power to one or more components located within the low voltage electrical cabinet 100 , for example, the power connector 152 may be configured to receive energy from an external generator. Additionally, power connector 154 and power connector 156 may provide external power to various power sources, such as 30A, 60A, or some other current amount. In one embodiment, the power connector 154 and the power connector 156 may provide power to electrical components located near the low-voltage electrical cabinet 100, such as lighting, audio equipment, and power tools. In an example, power connector 154 and power connector 156 may be configured to provide a magnitude of power. For example, power connection 154 may be configured to provide 30A of power, while power connector 156 may be configured to provide 60A of power.

As shown in Figure 1, in one embodiment, the fourth differentiated space 140 includes one or more doors, similar to that discussed with reference to Figure 2B. Additionally, the fourth differentiated space 140 may include one or more containment mechanisms to limit any unwanted external exposure, limit access by unauthorized users, or both. As shown in FIG. 3A , the fourth differentiated space 140 includes one or more circuits and one or more electronic component loading devices 242 . One or more lines may provide access or connection to electronic devices within the fourth differentiated space 140. Additionally, one or more electronic component loading devices 242 may be used to accommodate or support one or more components contained within the fourth differentiated space 140 . In one embodiment, the fourth compartment 140 may include a power supply 244 mounted on the electronic component loading device 242 to provide power distribution for the electronic components contained in the fourth compartment 140 , such as any power supply 244 mounted on the electronic component loading device 242 electronic components on. In an embodiment, power supply 244 may be configured to receive power from one or more of circuit breaker panel 214, first battery 232A, and second television 232B.

In one embodiment, the low-voltage electrical cabinet 100 can form airflow in the cabinet to ensure that the temperature or humidity of components in the cabinet is in a normal state. The low voltage electrical cabinet 100 may include one or more air flow forming devices and one or more air flow holes 158 , such as vents in the panel 108 . In one embodiment, an airflow forming device or combination of airflow holes 158 may provide air into the low voltage electrical cabinet 100 or exhaust any exhaust air generated by the low voltage electrical cabinet 100 , and the airflow forming device may be located on top of the low voltage electrical cabinet 100 . Air flow holes 158 may be located in the bottom of the low voltage electrical cabinet 100 .

In one embodiment, the base 102 may be made of one or more solid materials that weigh less than the weight of the low voltage electrical cabinet 100 . For example, base 102 may include concrete, brick, various metal alloys. Base 102 may include a plurality of conduits. A plurality of conduits may provide paths for electrical wires, power cables, fiber optics, etc. to connect to the low voltage electrical cabinet 100 .

Embodiment 2

As shown in FIG. 4 , in one embodiment, the top of the low-voltage electrical cabinet 100 has an opening 585 . The protective cover 104 is disposed at the opening 585 of the low-voltage electrical cabinet 100 and has a gap in this area, that is, the protective cover 104 is not airtight to the low-voltage electrical cabinet 100, so that when the air flow device located in the base 102 moves the air It is discharged from the opening 585 of the protective cover 104 .

As shown in FIGS. 5A and 5B , in one embodiment, a side view of the low voltage electrical cabinet 100 is provided. Referring to FIG. 5A , the low-voltage electrical cabinet 100 includes each handle 600 of the door in the first differentiated space 110 , the second differentiated space 120 and the third differentiated space 130 . Referring to FIG. 5B , shown as a single member extending outwardly from the low voltage electrical cabinet 100 and downwardly from the connection point, other examples of the low voltage electrical cabinet 100 may include providing functionality to assist the user in opening the first differentiated space 110 , the second differentiated space 120 With any one of the doors in the third differentiated space 130, the handle on the low-voltage electrical cabinet 100 can also be of other types or shapes.

As shown in Figure 6, based on the above embodiment, the low-voltage electrical cabinet 100 also includes several gas flow systems 101 that create safe air flow paths to release the hot air pressure inside the cabinet to the outside of the cabinet in a short time. Each gas flow system At least part of 101 is arranged on the outer wall of the cabinet;

Each gas flow system 100 includes three guide parts that offset at least part of the hot gas pressure when the hot gas pressure in the cabinet flows along the air flow safety path. The three guide parts and the outer wall of the cabinet jointly form the air flow safety path, and, The three guide parts are arranged at different positions of the airflow safety path and are in sequential contact with the hot air pressure. Each differentiated space is configured with at least one gas flow system. In one embodiment, all the differentiated spaces are connected to each other, and only one differentiated space is equipped with a gas flow system, which can also achieve the purpose of timely releasing the hot air pressure in the cabinet.

The three guide parts of the gas flow system 101 are the inner plate 125, the plurality of baffles 135, and the surface plate 143 respectively. The location of the gas flow system 101 in the low-voltage electrical cabinet 100 is not specifically limited.

The gas flow system 101 is configured on the front wall 107 of the low-voltage electrical cabinet 100 . The inner panel 125 of the gas flow system 101 is attached to and separated from the inner surface 119 of the front wall 107 by a first distance 127 with an intermediate piece 129 . Since the middle piece 129 allows the inner panel 125 to be spaced apart from the inner surface 119 of the front wall 107 by the first distance 127, the four sides of the inner panel 125 directly communicate with the space inside the cabinet.

As shown in FIGS. 6 and 9 , in one embodiment, four gaskets are used as intermediate pieces 129 , one at each corner of the inner panel 125 , to connect the inner panel 125 to the inner surface of the front wall 107 . Surfaces 119 are spaced a first distance 127 apart. However, it should be understood that more or less middleware 129 may be used.

As shown in Figure 9, the inner plate 125 is attached to the inner surface 119 of the front wall 107 through screws 131 and nuts 133. Specifically, four sets of screws 131 and nuts 133 are used to attach the inner plate 125 to the front wall with openings. The inner surface 119 of 107 is one set at each corner of the inner panel 125 . However, it should be understood that more or fewer sets of screws 131 and nuts 133 may be used. The inner plate 125 serves as a first guide for the gas flow system 101 .

The intermediate guide portion of the gas flow system 101 includes a plurality of baffles 135, which are integrally included on the front wall 107 and are adjacent to and parallel to the inner plate 125. All baffles 135 are adjacent to the openings of the wall and remain in the same direction. leaning posture. The baffle 135 is designed to direct any airflow 135 leaving the baffle in a downward position. The airflow 141 leaving the baffle 135, as shown in Figure 9, is due to an extremely short-term (less than 1 second) short circuit explosion 123 Cause, this sometimes happens in low voltage electrical cabinets 100. When a short circuit explosion 123 occurs, the resulting pressure and hot gases released from the short circuit explosion 123 are able to escape around the inner panel 125, which is open on all four sides as mentioned before, and are then directed A downward direction through multiple baffles 135 .

As shown in FIGS. 6 and 7 , the flap 135 integrally contained within the front wall 107 is shown to be fixed and remains open at all times between the interior and exterior of the low voltage electrical cabinet 100 . If the shutter 135 is movable about a horizontal axis, the shutter 135 can be used for the same purpose as previously described, allowing the shutter 135 to be used when sufficient airflow 141 from within the cabinet caused by a short circuit explosion 123 The flap 135 moves from the closed position to the open position in an outward direction away from the interior of the low voltage electrical cabinet 100 and then, when the air flow 141 is stopped due to the pressure from the short circuit explosion 123 and the complete release of the gas, the flap 135 will rotate about the horizontal axis Return to the closed position until they stop parallel to the front wall 107.

As shown in FIGS. 6 and 7 , the second guide portion of the gas flow system 101 includes a surface plate 143 . The surface plate 143 is welded to the outer surface 121 of the front wall 107 and is positioned immediately adjacent and parallel to the baffle 135 on the outside of the baffle 135 . Surface panel 143 vents gas pressure out of low voltage electrical cabinet 100 . As shown in FIGS. 8-10 , the outer panel 143 is welded to the top edge 147 , the sides 149 and 151 and to the outer surface 121 of the front wall 107 such that the bottom edge 153 of the surface panel 143 is open to the outside environment and allows to be The airflow 141 guided out of the baffle 135 exits from the bottom edge 153 of the surface plate 143 and is directed downward again. Similar to the inner panel 125 , the surface panel 143 is spaced a second distance 145 from the outer surface 121 of the front wall 107 . The surface panel 143 and the baffle 135 cooperate with each other and together form a flow guide structure that guides the gas 141 to flow along the outer surface of the wall of the cabinet.

Figure 8 shows a plan view of the present gas flow system 101, showing the inner plate 125, the plurality of baffles 135 and the surface 143. As shown in Figure 9, an explosion 123 occurs in the cabinet due to a short circuit of the low-voltage electrical equipment contained in the cabinet. The airflow 141 generated by the pressure and hot gases released by the explosion can surround the opening edges 125a, 125b, 125b, inner panels. 125 of 125c and 125d. Due to the first distance 127, the airflow 141 is able to escape around the opening edge of the inner panel 125, which is spaced from the inner wall surface 119 of the cabinet.

As shown in Figure 10, the airflow 141 leaves the electrical cabinet from the bottom edge 153 of the surface panel 143, and the top edge 147, the side edges 149 and the side edges 151 of the surface panel 143 are welded to the outer surface 121 of the low-voltage electrical cabinet 100 of the front wall 107. On the side wall 115, only the bottom edge 153 is left open to the outside world, so that the surface panel 143 and the wall of the cabinet form a ventilation structure with an opening, allowing the airflow 141 to be discharged in one direction. Due to the second distance 145 , the airflow 141 is able to escape from the open bottom edge 153 of the surface panel 143 . Referring to Figures 6-8, the surface panel 143 is spaced apart from the outer wall surface 121 of the cabinet. The inner panel 125 and the baffle 135 are adjacent to, parallel to and behind the outer panel 143 . Their position behind the side wall 115 of the cabinet is indicated by dashed lines in Figure 10 .

As shown in FIG. 11 , the low-voltage electrical cabinet 100 may have more or less gas flow systems 101 configured at different locations on the wall of the low-voltage electrical cabinet 100 , such as side walls 115 and 117 , top wall 111 or bottom wall 113 , as previously mentioned, low voltage equipment housed within the low voltage electrical cabinet 100 may experience a short circuit, which may result in a short circuit explosion 123, with an airflow 141 caused by the pressure and hot gases of the explosion eventually leaving the machine through the bottom edge 153 of the surface panel 143 Low voltage electrical cabinet 100, creating a safe path to release the pressure and hot gases generated by the short circuit explosion 123.

In addition to the above-mentioned embodiments, the present invention may also have other implementation modes. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present utility model.

Claims (10)

1. A low-voltage electrical cabinet for outdoor electrical infrastructure, including a single cabinet, characterized in that: it also includes at least two devices that create a safe air flow path to release the hot air pressure inside the cabinet to the outside of the cabinet in a short time. A gas flow system, at least a part of each gas flow system is provided on the outer wall of the cabinet; each gas flow system includes at least offset during the flow of hot air pressure in the cabinet along the air flow safety path. Part of the three guide parts of the hot air pressure, the three guide parts and the outer wall of the cabinet jointly constitute the air flow safety path, and the three guide parts are arranged on the air flow safety path at different positions and in sequential contact with the hot air pressure; the cabinet includes four respectively used to configure low-voltage electrical metering and distribution equipment, configure low-voltage control equipment, configure energy storage equipment and extend to one or more line slots. Lines and differentiated spaces are configured with information interaction equipment. All of the differentiated spaces are located in different spatial areas within the cabinet, and each of the differentiated spaces is configured with at least one of the gas flow systems. 2. A low-voltage electrical cabinet for outdoor electrical infrastructure, including a single cabinet, characterized in that it also includes creating a safe air flow path to release the hot air pressure inside the cabinet to a single gas outside the cabinet for a short time. Flow system, at least part of the gas flow system is provided on the outer wall of the cabinet; the gas flow system includes a device that at least offsets part of the hot gas pressure when the hot gas pressure in the cabinet flows along the safe air flow path. Three guide parts, the three guide parts and the outer wall of the cabinet jointly constitute the air flow safety path, and the three guide parts are arranged at different positions of the air flow safety path and sequentially In contact with the hot air pressure; the cabinet includes four wire channels and configuration information respectively used for configuring low-voltage electrical metering and distribution equipment, configuring low-voltage control equipment, configuring energy storage equipment, and extending to one or more line troughs. As for the differentiated spaces of interactive equipment, all the differentiated spaces are interconnected and located in different spatial areas within the cabinet, and only one of the differentiated spaces is configured with the gas flow system. 3. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 1 or 2, characterized in that: the cabinet further includes a cabinet provided on each corresponding differentiated space and used to open the corresponding Doors that differentiate spaces. 4. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 3, characterized in that: the cabinet includes a first differentiated space for configuring the low-voltage electrical metering and the power distribution equipment, and the Low-voltage electrical metering and the power distribution equipment adopt electric meters and circuit breaker panels respectively. The first divided space includes a first divided branch space for accommodating the electric meter and a first divided two branch space for accommodating the circuit breaker panel. ; The cabinet also includes a first main door provided on the first divided space and used to open the first divided space; provided on a branch space of the first divided space and used to open the first divided space; A first auxiliary door that differentiates one branch space; and a second auxiliary door that is provided on the first compartment that differentiates between two branches and is used to open the first compartment that differentiates between two branches. 5. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 4, wherein at least one door is equipped with a closing mechanism that tightly closes the door with the corresponding opening of the cabinet, and the door passes through The corresponding closing mechanism and the associated opening part of the cabinet are in a closed state or a released state. 6. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 3, characterized in that: the cabinet includes a third wire channel for configuring the energy storage device and extending to one or more wire troughs. Three divided spaces, the energy storage equipment; the energy storage equipment adopts a first battery and a second battery that provide backup power to other divided spaces, and the number of the lines is two and each is to the first divided space. Provide a first wire path of the power connection component, and provide a second wire path of the power connection component to other partition spaces except the first partition space; the third partition space includes a third partition for accommodating the first partition space. A branch space and a third divided two-branch space that accommodates the second line; the cabinet also includes a third main door provided on the third divided space and used to open the first divided space; The first auxiliary door is located on the first branch space of the third partition and is used to open the first branch space of the third partition; and is provided on the two-branch space of the third partition and is used to open the two branches of the third partition. The second secondary door of the space. 7. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 1 or 2, characterized in that: the cabinet further includes at least one power connector provided on at least one side wall of the cabinet, One type of power connector is configured to receive power from an external power source and transmit the power to the components within the cabinet, and the other type of power connector is configured to connect all The components in the cabinet transmit power to at least one external power device. 8. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 4, characterized in that: the three guide parts are an inner panel, a plurality of baffles, and a surface in order of contact with the hot air pressure. Panel, the inner panel is fixedly disposed on the inner surface of at least one wall with openings of the cabinet, the inner panel is separated from adjacent main panels of the cabinet by a first distance, and all of the The baffle is disposed on the outer surface of the wall of the cabinet and is adjacent to the opening of the wall and is maintained in an inclined posture with the same direction. The surface plate is disposed on the outer surface of the wall of the cabinet and is located on the The outside of the baffle is spaced a second distance away from the outer surface of the wall of the cabinet, and the surface plate and the baffle cooperate with each other to guide the hot air pressure along the outer surface of the wall of the cabinet. A flow guide structure for flow in one direction. 9. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 8, wherein one end of each baffle is rotatably disposed on the outer surface of the wall of the cabinet; when the When the baffle contacts the hot air pressure, the baffle moves from the closed position to the open position in an outward direction away from the inside of the cabinet; when the hot air pressure is completely released, the baffle moves along the direction close to the cabinet. The body moves inwardly from the open position to the closed position. 10. The low-voltage electrical cabinet for outdoor electrical infrastructure according to claim 8, characterized in that: the top edge and both sides of the surface panel are fixedly connected to the outer surface of the wall of the cabinet, so that the surface panel The panel and the wall of the cabinet form a ventilation structure with an opening, and the opening of the ventilation structure is located at the bottom edge of the surface panel.