CN111555220A

CN111555220A - Terminal box

Info

Publication number: CN111555220A
Application number: CN202010413462.1A
Authority: CN
Inventors: 冯永亮; 张海鹏; 吴俊�; 李小龙
Original assignee: Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-08-18
Anticipated expiration: 2040-05-15
Also published as: CN111555220B

Abstract

The invention discloses a terminal box, which comprises a box body and a supporting seat, wherein the box body is detachably arranged on the supporting seat, the box body comprises a top plate, a bottom plate, a box door and three side plates which are sequentially connected, the top plate is arranged on the top end surface of the side plate, the bottom plate is arranged at the position, adjacent to the bottom end surface, of the side plate, the bottom plate and the bottom end surface of the side plate are distributed at intervals, a cavity is formed by the top plate, the side plates and the bottom plate in a surrounding mode, the cavity is used for accommodating electric elements and connecting wires, the bottom plate is provided with wire passing holes, the box door is rotatably arranged on one side of the cavity, each side plate comprises an inner layer plate and an outer layer plate, each inner layer plate is sequentially connected, the outer layer plates are correspondingly arranged on one side surface, away from the cavity, the outer layer plates and the inner layer, the electric element is arranged on one side surface of the inner layer plate, which is far away from the outer layer plate. The top plate and the outer plate can be replaced independently, and the service life is long.

Description

Terminal box

Technical Field

The invention relates to the technical field of distribution equipment boxes, in particular to a terminal box.

Background

The wiring terminal box is a switching construction line, marks branch lines and provides a convenient interface device for wiring and line inspection. Some terminal box housings installed outdoors are prone to corrosion due to long-term contact with rainwater and moisture in the air outside the box body, and therefore the terminal box needs to be replaced frequently. When the terminal box is replaced in the prior art, power needs to be cut off firstly, then the terminal box is replaced integrally, electric elements and wiring are removed from the old terminal box to the inside of a new terminal box, and finally power is connected, so that the operation is complex, and the production and life of users are greatly influenced by power failure.

Disclosure of Invention

The invention aims to: provided is a terminal box which can replace a top plate and an outer plate independently and has a long service life.

In order to achieve the purpose, the invention adopts the following technical scheme:

the terminal box comprises a box body and a supporting seat connected with an external supporting column, wherein the box body is detachably arranged on the supporting seat and comprises a top plate, a bottom plate, a box door and three side plates which are sequentially connected, the top plate is arranged on the top end face of each side plate, the bottom plate is arranged at the position, close to the bottom end face, of each side plate, the bottom plate and the bottom end faces of the side plates are distributed at intervals, a cavity is formed by the top plate, the side plates and the bottom plate in an enclosing mode and used for containing electric elements and connecting wires, the bottom plate is provided with a wire passing hole for the connecting wires to pass through, the box door is rotatably arranged on one side of the cavity, each side plate comprises an inner plate and an outer plate, each inner plate is sequentially connected, the outer plate is correspondingly arranged on one side face, away from the cavity, of the inner plate, and the outer plate and the inner plate are detachably connected through a first, the roof with the connection can be dismantled through second coupling assembling to the inner plating, just the roof is at the horizontal direction orientation the outside of box extends, electric elements sets up the inner plating deviates from a side of outer plating.

As a preferable aspect of the terminal box, a waterproof seal layer is provided in a gap between the top plate and the outer plate.

As a preferred technical solution of the terminal box, the first connection assembly includes a first connection screw, the top plate is provided with a first threaded connection hole in a penetrating manner, the inner plate is provided with a second threaded connection hole corresponding to the first threaded connection hole, and the first connection screw is screwed in the first threaded connection hole and the second threaded connection hole respectively;

and/or the presence of a gas in the gas,

the second connecting assembly comprises a second connecting screw, a third threaded connecting hole is formed in the outer layer plate in a penetrating mode, a fourth threaded connecting hole is formed in the third threaded connecting hole corresponding to the inner layer plate, and the second connecting screw is screwed in the third threaded connecting hole and the fourth threaded connecting hole respectively.

As an optimal technical scheme of the terminal box, the first connecting component comprises a first buckle groove and a first buckle protrusion matched and clamped with the first buckle groove, the first buckle protrusion is arranged on one side face of the side plate opposite to the top plate, the first buckle groove is arranged on the top end face of the inner layer plate, the second connecting piece comprises a second buckle groove and a second buckle protrusion matched and buckled with the second buckle groove, the second buckle protrusion is arranged on one side face of the inner layer plate opposite to the outer layer plate, and the second buckle groove is arranged on one side face of the outer layer plate opposite to the inner layer plate.

As a preferable technical solution of the terminal box, the first latching protrusion and the second latching protrusion each include a connecting portion and a latching portion that is latched by the first latching groove or the second latching groove, and a guide surface having an arc-shaped structure is provided between the latching portion and the connecting portion.

As a preferable technical solution of the terminal box, one side of the top plate departing from the side plate is inclined downwards from the middle part towards the outer part of the box body.

As a preferred technical scheme of the terminal box, the bottom plate is a grid plate, and a hydrophobic layer is arranged on one side surface of the inner layer plate, which is far away from the outer layer plate.

As a preferable technical scheme of the terminal box, the bottom plate is detachably connected to the inner plate through a third connecting screw, a groove is formed in the circumference of the bottom plate in a concave manner, and the groove and the side plate are surrounded to form the wire passing hole.

As a preferable technical solution of the terminal box, a humidity meter is provided inside the box body, and a ventilation fan is mounted on the bottom plate.

As a preferable technical solution of the terminal box, the box door is provided with a transparent window.

The invention has the beneficial effects that: can dismantle the connection through coupling assembling respectively between outer plywood and the inner plating and roof and the inner plating, when outer plywood is corroded, can dismantle outer plywood from the inner plating, install new outer plywood again, the terminal box of this kind of structure need not have a power failure and can accomplish the change to the outer plywood when the outer plywood is corroded to need not the change to the inner plating, avoid the removal to electric elements, be favorable to practicing thrift the cost. In addition, the bottom plate is located the inside of box, avoids rainwater direct contact bottom plate, and the use that has prolonged the bottom plate that can to a great extent is hit. Because the roof extends in the horizontal direction towards the outside of box, the rainwater is sheltered from to the accessible roof, avoids the interim outer plywood of rainwater.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic perspective view of a terminal box according to an embodiment.

Fig. 2 is a cross-sectional view of the terminal box according to the embodiment with the top plate removed.

Fig. 3 is a schematic structural diagram of the top plate according to the embodiment.

FIG. 4 is a schematic view of the connection of the outer and inner laminates according to the embodiment.

FIG. 5 is a cross-sectional view of an outer laminate according to an embodiment.

In the figure:

1. a box body; 11. a top plate; 12. a side plate; 121. an inner layer board; 122. an outer plate; 123. a hydrophobic layer; 13. a box door; 131. a perspective window; 14. a base plate; 141. a wire passing hole; 2. a supporting seat; 21. a support plate; 22. a first positioning post; 23. a second positioning column; 3. a ventilation fan; 4. a first snap groove; 5. a first snap projection; 6. a guide surface; 7. a second snap-fit groove; 8. the second buckle is convex.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 5, the present invention provides a terminal box, which includes a box body 1 and a supporting seat 2 connected to an external supporting column, wherein the box body 1 is detachably disposed on the supporting seat 2, and the box body 1 includes a top plate 11, a bottom plate 14, a box door 13, and three side plates 12 connected in sequence. The top plate 11 is disposed on the top end surface of the side plate 12, the bottom plate 14 is disposed at a position of the side plate 12 adjacent to the bottom end surface, the bottom plate 14 and the bottom end surface of the side plate 12 are distributed at intervals, the top plate 11, the side plate 12 and the bottom plate 14 enclose a cavity for accommodating an electrical component (not shown in the figure) and a connecting wire (not shown in the figure), the bottom plate 14 is provided with a wire passing hole 141 for the connecting wire to pass through, and the box door 13 is rotatably disposed on one side of the cavity. Each of the side plates 12 includes an inner plate 121 and an outer plate 122, each of the inner plates 121 is sequentially connected, the outer plate 122 is correspondingly disposed on a side surface of the inner plate 121 departing from the chamber, the outer plate 122 is detachably connected to the inner plate 121 through a first connecting assembly, the top plate 11 is detachably connected to the inner plate 121 through a second connecting assembly, the top plate 11 extends in a horizontal direction toward the outside of the box body 1, and the electrical element is disposed on a side surface of the inner plate 121 departing from the outer plate 122.

In order to ensure the structural strength of the box body 1, the top plate 11, the bottom plate 14, the box door 13 and the side plates 12 are all made of stainless steel. The side plate 12 includes an inner plate 121 and an outer plate 122, and since the outer plate 122 is located outside the box body 1, the outer plate 122 is in direct contact with rainwater and moisture in the air, so that the outer plate 122 is relatively easy to corrode. In this embodiment, the outer plywood 122 and the inner plywood 121 and the top plate 11 and the inner plywood 121 are detachably connected through the connecting assembly respectively, when the outer plywood 122 is corroded, the outer plywood 122 is detached from the inner plywood 121, a new outer plywood 122 is installed again, the terminal box with the structure can finish the replacement of the outer plywood 122 without power failure when the outer plywood 122 is corroded, the inner plywood 121 does not need to be replaced, the movement of an electric element is avoided, and the cost is saved. In addition, the bottom plate 14 is positioned in the box body 1, rainwater is prevented from directly contacting the bottom plate 14, and the service life of the bottom plate 14 can be effectively prolonged. Since the top plate 11 extends toward the outside of the case 1 in the horizontal direction, rainwater can be blocked by the top plate 11, and the rainwater temporary outer plate 122 is prevented.

In this embodiment, the two adjacent inner plates 121 are integrally formed, so as to prevent the water leakage phenomenon caused by the gap between the two adjacent inner plates 121. A waterproof sealant (not shown) is adhered between the two adjacent outer plates 122 to prevent rainwater from penetrating between the two outer plates 122.

A waterproof sealing layer (not shown) is disposed in a gap between the top plate 11 and the outer plate 122 to prevent the electric components inside the case 1 from being damaged due to water leakage at the position.

In one embodiment, the first connection assembly includes a first connection screw, the top plate 11 is provided with a first threaded connection hole, the inner plate 121 is provided with a second threaded connection hole corresponding to the first threaded connection hole, and the first connection screw is screwed in the first threaded connection hole and the second threaded connection hole respectively. The second connecting assembly comprises a second connecting screw, a third threaded connecting hole is formed in the outer layer plate 122 in a penetrating mode, a fourth threaded connecting hole is formed in the inner layer plate 121 corresponding to the third threaded connecting hole, and the second connecting screw is screwed in the third threaded connecting hole and the fourth threaded connecting hole respectively. In this embodiment, the top plate 11 and the inner plate 121 and the outer plate 122 and the inner plate 121 are connected by the connecting screws, so that the structural strength of the box body 1 is ensured.

Preferably, a first connection screw may be further connected between the top plate 11 and the outer plate 122 to prevent the top plate 11 and the outer plate 122 from being separated from each other.

In another embodiment, the first connecting assembly includes a first fastening groove 4 and a first fastening protrusion 5 engaged with the first fastening groove 4, the first fastening protrusion 5 is disposed on a side surface of the top plate 11 facing the side plate 12, the first fastening groove 4 is disposed on a top end surface of the inner plate 121, the second connecting member includes a second fastening groove 7 and a second fastening protrusion 8 engaged with the second fastening groove 7, the second fastening protrusion 8 is disposed on a side surface of the outer plate 122 facing the inner plate 121, and the second fastening groove 7 is disposed on a side surface of the inner plate 121 facing the outer plate 122. During specific installation, the top plate 11 and the inner plate 121 as well as the outer plate 122 and the outer plate 122 can be directly fastened with each other, so that the replacement speed of the outer plate 122 is greatly increased.

In order to avoid the separation phenomenon between the top plate 11 and the outer plate 122, a first snap component is disposed between the top plate 11 and the outer plate 122.

The first buckling bulge 5 and the second buckling bulge 8 respectively comprise a connecting part and a buckling part buckled by the first buckling groove 4 or the second buckling groove 7, and a guide surface 6 with an arc-shaped structure is arranged between the buckling part and the connecting part. The existence of guide face 6 can guide the protruding quick buckle of buckle to target in place, improves the efficiency of changing.

Wherein, the thickness of the inner layer plate 121 and the outer layer plate 122 is 1-5 cm.

The side surface of the top plate 11 departing from the side plate 12 is downwards inclined from the middle part to the outer part of the box body 1. The roof plate 11 with the structure can prevent rainwater from accumulating on the roof plate 11.

The bottom plate 14 is a grid plate, and a hydrophobic layer 123 is disposed on one side surface of the inner plate 121 facing away from the outer plate 122. Wherein, have a plurality of through-holes (not shown in the figure) on the grid board, this through-hole is as crossing the water hole, and when the air condensed and formed the drop on inner plate 121, the drop can flow downwards along inner plate 121's hydrophobic layer 123, because the bottom plate has the water hole, the drop accessible crosses the outside that the water hole flows to box 1, avoids the drop a large amount of gathering inside box 1, is favorable to keeping the inside drying of box 1.

In this embodiment, the bottom plate 14 is detachably connected to the inner plate 121 through a third connecting screw, a groove is recessed in the periphery of the bottom plate 14, and the groove and the side plate 12 surround to form the wire passing hole 141. Because bottom plate 14 third connecting screw can dismantle with inner plate 121 and be connected, after the use of a certain time, can change bottom plate 14, the recess encloses with curb plate 12 and establishes and form and cross line hole 141, and this kind of design is placed and need not remove the connecting wire and can be changed bottom plate 14.

In this embodiment, a humidity meter (not shown) is disposed inside the casing 1, and the ventilation fan 3 is mounted on the bottom plate 14. The humidity meter detects the humidity inside the box body 1, when the humidity inside the box body 1 is large, the humidity meter is started, because the bottom plate 14 is the grid plate, and the bottom end face of the side plate 12 of the bottom plate 14 is provided with a gap, the through hole on the grid plate can have the ventilation function at the same time, when the ventilation fan 3 is started, the ventilation can be carried out from the through hole in the grid plate, the design can enhance the air convection inside the box body 1, and the ventilation hole does not need to be additionally arranged in the box body 1.

Specifically, the door 13 is connected to the outer plate 122 through a hinge, and the door 13 is provided with a transparent window 131, through which the electric components inside the cabinet 1 can be viewed through the transparent window 131.

The supporting seat 2 comprises a supporting plate 21 welded with the external supporting column, a first positioning column 22 and a second positioning column 23 are convexly arranged on the upper surface of the supporting plate 21, a first positioning hole for the first positioning column 22 to be in splicing fit is formed in the inner layer plate 121, a second positioning hole for the second positioning column 23 to be in splicing fit is formed in the outer layer plate 122, and openings of the first positioning hole and the second positioning hole are located on the bottom end face of the side plate 12. In this embodiment, the first positioning hole and the second positioning hole are both blind holes. The depth of the first positioning hole is equal to the height of the first positioning column 22, and the depth of the second positioning hole is equal to the height of the second positioning column 23.

In order to have a sufficient positioning force between the support plate 21 and the cabinet 1, the depth of the first positioning hole and the depth of the second positioning hole are 1/2-2/3 of the height of the side plate 12.

In this embodiment, the supporting plate 21 is a grating plate, and the grating plate has a plurality of through holes. The supporting plate 21 is provided with a grating plate, so that rainwater is prevented from being accumulated on the supporting plate 21; on the other hand, the through holes of the supporting plate 21 are communicated with the through holes on the bottom plate 14, so that the circulation of air inside the box body 1 is enhanced, and water drops are prevented from being gathered inside the box body 1.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A terminal box is characterized by comprising a box body and a supporting seat connected with an external supporting column, wherein the box body is detachably arranged on the supporting seat and comprises a top plate, a bottom plate, a box door and three side plates which are sequentially connected, the top plate is arranged on the top end face of each side plate, the bottom plate is arranged at the position, close to the bottom end face, of each side plate, the bottom plate and the bottom end face of each side plate are distributed at intervals, a cavity is formed by the top plate, the side plates and the bottom plate in an enclosing mode and used for containing electric elements and connecting wires, a wire passing hole for the connecting wires to pass through is formed in the bottom plate, the box door is rotatably arranged on one side of the cavity, each side plate comprises an inner layer plate and an outer layer plate, the inner layer plates are sequentially connected, and the outer layer plates are correspondingly arranged on one side face, away from the, and the outer plywood with the connection can be dismantled through first coupling assembling to the inner plating, the roof with the connection can be dismantled through second coupling assembling to the inner plating, just the roof is in the horizontal direction orientation the outside of box extends, electric elements sets up the inner plating deviates from a side of outer plywood.

2. The terminal box according to claim 2, wherein a gap between the top plate and the outer plate is provided with a waterproof seal layer.

3. The terminal box according to claim 1, wherein the first connection assembly includes a first connection screw, the top plate has a first threaded connection hole therethrough, the inner plate has a second threaded connection hole corresponding to the first threaded connection hole, and the first connection screw is screwed into the first threaded connection hole and the second threaded connection hole respectively;

and/or the presence of a gas in the gas,

4. The terminal box of claim 1, wherein the first connecting assembly includes a first fastening groove and a first fastening protrusion engaged with the first fastening groove, the first fastening protrusion is disposed on a side of the top plate opposite to the side plate, the first fastening groove is disposed on a top end surface of the inner plate, the second connecting member includes a second fastening groove and a second fastening protrusion engaged with the second fastening groove, the second fastening protrusion is disposed on a side of the outer plate opposite to the inner plate, and the second fastening groove is disposed on a side of the inner plate opposite to the outer plate.

5. The terminal box according to claim 4, wherein each of the first and second catching projections includes a connecting portion and a catching portion that the first or second catching groove catches, and an arc-shaped guide surface is provided between the catching portion and the connecting portion.

6. The terminal box according to claim 1, wherein a side of the top plate facing away from the side plate is inclined downward from the middle portion toward an outer portion of the box body.

7. The terminal box of claim 1, wherein the bottom plate is a grid plate and a side of the inner plate facing away from the outer plate is provided with a hydrophobic layer.

8. The terminal box according to claim 7, wherein the bottom plate is detachably connected to the inner plate by a third connecting screw, a groove is formed in a circumference of the bottom plate, and the groove and the side plate surround to form the wire passing hole.

9. The terminal box according to claim 8, wherein a humidity meter is provided inside the box body, and a ventilation fan is mounted on the bottom plate.

10. The terminal box according to any one of claims 1 to 9, wherein the box door is provided with a see-through window.