Anti-condensation vertical intelligent grounding box
By using insulation layer and partition structure in the cable grounding box, the circuit short circuit problem caused by water droplet condensation is solved, and the stable operation of the cable grounding box and the reliability of data acquisition is achieved.
Patent Information
- Application Number
- CN202422102872.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing cable grounding box is prone to condensation due to temperature difference and high humidity in the external environment, resulting in short circuits of internal circuits and aging of equipment, especially the data acquisition equipment in the intelligent grounding box is easily damaged.
An anti-condensation vertical intelligent grounding box is designed, adopting an insulation layer and partition structure. The insulation layer reduces heat transfer. The partition has a flow guide surface and a drainage channel. Water droplets enter the drainage channel along the flow guide surface and are discharged out of the box to avoid circuit short circuit.
It effectively reduces water droplet condensation, protects circuit and data acquisition equipment, ensures the stable operation of the equipment and can continuously collect cable line information.
Smart Images

Figure CN223246264U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grounding boxes, in particular to an anti-condensation vertical intelligent grounding box. Background Art
[0002] Cable grounding boxes are used for protective grounding of cable sheaths, eliminating the adverse effects of overvoltage and overcurrent on cable line operation. With the advancement of technology, cable grounding boxes now not only provide grounding services but also collect and transmit line information in a timely manner.
[0003] When cable grounding boxes are exposed to the elements for extended periods, temperature differences can cause water vapor in the air to cool and condense into droplets when it encounters the inner walls of the box. Furthermore, if the water vapor content in the air is too high, exceeding the air's moisture capacity, the water will also condense into droplets. These droplets can accelerate the aging of components within the box and may even cause short circuits, leading to equipment failure and burnout. Utility Model Content
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an anti-condensation vertical intelligent grounding box that can reduce the generation of water droplets inside the grounding box and prevent the circuit inside the grounding box from short-circuiting due to water droplets.
[0005] According to an embodiment of the present invention, the anti-condensation vertical intelligent grounding box includes: a box body, the box body includes a first end and a second end opposite to each other, and the second end of the box body is provided with a box cover;
[0006] a heat-insulating layer, the heat-insulating layer being arranged on the box cover;
[0007] A partition is arranged inside the box body, and the partition is located on the side close to the box cover. The partition is connected to the inner wall of the box body to separate the box body into different spaces. The partition has a raised guide surface, and the raised direction of the guide surface is toward the box cover. The partition is provided with a drainage channel, and the drainage channel is connected to the guide surface. The drainage channel also extends to the outside of the box body.
[0008] According to the embodiment of the utility model, the anti-condensation vertical intelligent grounding box has at least the following beneficial effects: grounding facilities for cables and other electrical equipment are provided in the box; the thermal insulation layer can reduce heat transfer and maintain the temperature inside the box stable. Due to the small temperature change, even if the air in the box contains moisture, it is in an unsaturated state and difficult to condense; the thermal insulation layer serves as the first layer of protection, and the partition in the box serves as the second layer of protection; even if there is moisture condensation to form water droplets, the water droplets will appear on the surface of the partition, and enter the drainage channel along the guide surface, and finally be discharged out of the box, avoiding the circuit inside the grounding box from short-circuiting due to water droplets.
[0009] According to some embodiments of the present invention, the partition includes a first connecting frame for connecting to the box body, the first connecting frame is provided with an arc-shaped connecting wall, the connecting wall is docked with the first connecting frame, and the outer side wall of the connecting wall forms the guide surface.
[0010] According to some embodiments of the present invention, a circle of guide grooves is provided at the joint between the first connecting frame and the connecting wall. The guide grooves are located in the first connecting frame. The guide grooves are provided with at least one diversion point. Starting from the diversion point, the depth of the guide grooves gradually decreases in the direction away from the diversion point within the guide grooves.
[0011] According to some embodiments of the present invention, the first connecting frame is provided with a water outlet, the water outlet is located at the drainage point, a conduit is provided, one end of the conduit is connected to the water outlet, and the other end of the conduit is connected to the outside of the box.
[0012] According to some embodiments of the present invention, an isolation plate is provided inside the box body, and the isolation plate is arranged between the first end of the box body and the partition, the isolation plate is connected to the inner wall of the box body, and the partition is connected to the isolation plate, the space between the isolation plate and the first end of the box body is the first zone, and the space between the isolation plate and the partition is the second zone.
[0013] According to some embodiments of the present invention, the isolation plate includes a second connecting frame, which is connected to the inner wall of the box body. The second connecting frame is provided with a raised plate surface, which is docked with the second connecting frame to form a accommodating cavity. The plate surface protrudes toward the first end of the box body, and the second connecting frame is attached to the first connecting frame.
[0014] According to some embodiments of the present invention, a sealing groove is provided on a side surface of the first connecting frame facing the second connecting frame. The sealing groove is provided around the circumference of the first connecting frame, and a sealing ring is provided in the sealing groove.
[0015] According to some embodiments of the present invention, at least two positioning posts are provided on a side surface of the second connecting frame facing the first connecting frame, and the first connecting frame is correspondingly provided with positioning holes, and the positioning posts are used to pass through the positioning holes.
[0016] According to some embodiments of the present invention, the cross-section of the box cover is an angular structure.
[0017] According to some embodiments of the present invention, the thermal insulation layer is provided on a side surface of the box cover located inside the box body, and the thermal insulation layer includes any one of an asbestos layer, a glass wool layer or a polyurethane layer.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0020] Figure 1 This is a structural diagram of an anti-condensation vertical intelligent grounding box according to an embodiment of the present utility model;
[0021] Figure 2 This is a schematic cross-sectional view of the second end of the box body and the box cover according to an embodiment of the present invention;
[0022] Figure 3 This is a schematic structural diagram of a partition according to an embodiment of the present utility model;
[0023] Figure 4 This is a structural diagram of the guide groove and the water outlet of an embodiment of the utility model;
[0024] Figure 5 This is a schematic diagram of the bottom structure of the partition according to an embodiment of the present utility model;
[0025] Figure 6 This is a schematic structural diagram of an isolation plate according to an embodiment of the present invention.
[0026] Figure Number:
[0027] Box body 100 , box cover 110 , insulation layer 200 , partition 300 , drainage channel 301 , first connecting frame 310 , guide groove 311 , water outlet 312 , sealing groove 313 , positioning hole 314 , isolation plate 400 , accommodating cavity 401 , second connecting frame 410 , positioning column 411 . DETAILED DESCRIPTION
[0028] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0032] Cable grounding boxes are specialized devices used for protective grounding of the cable sheath, eliminating the adverse effects of overvoltage and overcurrent on cable line operation. When long high-voltage cables are in operation, alternating current flows through the cable, generating magnetic flux lines that intersect the cable's shield, generating an induced voltage. The magnitude of this induced voltage is proportional to the cable length and the current flowing through it. Therefore, in long cables, the cumulative induced voltage can reach levels that pose a threat to personal safety. Furthermore, if a short circuit occurs, or if the cable is subjected to overvoltage or lightning strikes, the induced voltage on the shield is even higher, potentially even capable of breaking through the cable sheath insulation. Therefore, reliable and effective grounding is essential for the cable shield. The shield of long cables is connected to a cable grounding box, typically with multiple boxes spaced along the line. This grounding eliminates the adverse effects of overvoltage and overcurrent on cable line operation.
[0033] With the advancement of technology, cable grounding boxes now not only provide grounding services but also collect and transmit line information in a timely manner. These boxes typically have a high-voltage area and a low-voltage area. The high-voltage area is used to ground the cable shield, while the low-voltage area is equipped with intelligent equipment to collect data on cable operation. For example, data such as the cable's operating current and voltage, as well as temperature and humidity within the box, can be collected.
[0034] Cable grounding boxes are often exposed to the elements. Temperature differences can cause water vapor in the air to cool and condense into droplets when it encounters the inner walls of the box. Furthermore, if the water vapor content in the air is too high, exceeding the air's moisture capacity, the water will also condense into droplets. These droplets can accelerate the aging of components within the box and may even cause circuit shorts, leading to equipment failure and burnout. In smart grounding boxes equipped with data acquisition equipment, these droplets can also damage the equipment and cause it to fail, preventing it from collecting and transmitting cable line information in a timely manner.
[0035] Reference Figure 1 and Figure 2 As shown, an anti-condensation vertical intelligent grounding box according to an embodiment of the present invention includes a box body 100 , an insulation layer 200 and a partition 300 .
[0036] The housing 100 includes a first end and a second end that are opposite each other. The second end of the housing 100 is provided with a housing cover 110. The housing 100 is installed vertically, with the first end of the housing 100 being fixed to a mounting surface, such as a concrete foundation. The second end of the housing 100 is located opposite the first end, i.e., the second end is the top of the housing 100. The housing cover 110 is provided at the second end of the housing 100. When the housing cover 110 is opened, it can be used as an auxiliary inspection port for the housing 100.
[0037] The insulation layer 200 is provided on the box cover 110. Since current flows through the grounded cable, this current has a thermal effect, generating heat within the box 100. The heated air within the box 100 has a low density and flows toward the top of the box 100, specifically toward the box cover 110. This creates a relatively large temperature difference at the box cover 110, making it more likely for the moisture-laden hot air to condense and form water droplets at the second end of the box 100. Therefore, the insulation layer 200 is provided on the box cover 110 to reduce heat transfer, maintain a stable temperature at the second end of the box 100, and prevent condensation.
[0038] The partition 300 is arranged inside the box body 100, and the partition 300 is located on the side close to the box cover 110. The partition 300 is connected to the inner wall of the box body 100 to separate the box body 100 into different spaces. The partition 300 has a raised guide surface, and the raised direction of the guide surface is toward the box cover 110. The partition 300 is provided with a drainage channel 301, which is connected to the guide surface. The drainage channel 301 also extends to the outside of the box body 100.
[0039] Similarly, since hot air rises near the lid 110, condensation is more likely to form on the lid 110. A partition 300 is positioned near the lid 110 to prevent water droplets from reaching the first end of the housing 100. The grounding for the cable shield and data acquisition equipment can be located between the partition 300 and the first end of the housing 100. Generally, due to the insulation layer 200 on the lid 110, the temperature inside the housing 100 is relatively stable, making condensation less likely. Even in extreme environments, if condensation forms inside the housing 100, water droplets will appear on the side between the partition 300 and the lid 110. The water droplets slide down the guide surface of the partition 300 under the force of gravity, falling into the drainage channel 301 adjacent to the guide surface. They ultimately flow out of the housing 100 through the drainage channel, preventing the water droplets from short-circuiting the circuitry within the grounding box. Therefore, the smart grounding box installed in the outdoor environment can also operate safely and stably, without reducing the service life of electrical components such as data acquisition equipment, while realizing the collection and return of cable line data.
[0040] Reference Figure 3 and Figure 5 As shown, it can be understood that the partition 300 includes a first connecting frame 310 for connecting to the box body 100. The first connecting frame 310 is provided with an arc-shaped connecting wall, which is connected to the first connecting frame 310, and the outer wall of the connecting wall forms a guide surface.
[0041] The connecting wall is a thin wall made of the same material as the first connecting frame 310. Its arc-shaped shape effectively diverts condensation from the center of the first connecting frame 310 to the sides. Furthermore, the arc-shaped connecting wall creates a storage space, increasing the volume between the partition 300 and the first end of the housing 100, further utilizing the space within the housing 100 to accommodate data acquisition equipment.
[0042] Reference Figure 4 As shown, it can be understood that a circle of guide grooves 311 is provided at the junction of the first connecting frame 310 and the connecting wall. The guide grooves 311 are located in the first connecting frame 310. The guide grooves 311 are provided with at least one diversion point. Starting from the diversion point, the depth of the guide grooves 311 gradually decreases in the direction away from the diversion point in the guide grooves 311.
[0043] In some embodiments, the guide groove 311 serves as part of the drainage channel 301. The guide groove 311 is provided at the junction of the first connecting frame 310 and the connecting wall. After water droplets fall along the guide surface, they can directly enter the guide groove 311, reducing the flow path of the water droplets to reduce the risk of water droplets leaking into the circuit. In the guide groove 311, there is at least one drainage point, the groove depth of which is the deepest, that is, the relative height of the drainage point is the lowest. Under the action of gravity, the water droplets can be collected at the drainage point along the guide groove 311, making it easier to divert the water flow from the drainage point to the outside of the box 100. Of course, the drainage points of the guide groove 311 can be multiple. Preferably, a drainage point is provided at the center of the short side of the first connecting frame 310, that is, two drainage points are provided on the first connecting frame 310, located on the two opposite short sides of the first connecting frame 310.
[0044] It is understandable that, in some embodiments, the structure for directing the water flow out of the box 100 includes a conduit and a water outlet 312 .
[0045] The first connection frame 310 is provided with a water outlet 312 , which is located at a drainage point and is provided with a conduit, one end of which is connected to the water outlet 312 , and the other end of which is connected to the outside of the box body 100 .
[0046] The drainage point is at its lowest relative height, gathering water droplets to form a stream. Water outlet holes 312 are provided at the drainage point, allowing water to flow out unpowered through these holes. A soft rubber hose can be used for the conduit, and the conduit can be laid at gradually lower heights to ensure smooth water flow. In this embodiment, the guide groove 311, outlet holes 312, and conduit together form the drainage channel 301.
[0047] It should be understood that in other embodiments, since the first connecting frame 310 is connected to the box body 100, the opening direction of the water outlet 312 is designed so that the outlet of the water outlet 312 can be directly led to the side wall of the box body 100. At this time, the corresponding hole is opened in the side wall of the box body 100, so that the water flow of the water outlet 312 can be directly led to the outside of the box body 100.
[0048] Reference Figure 2 and Figure 6 As shown, it can be understood that an isolation plate 400 is provided inside the box body 100, and the isolation plate 400 is arranged between the first end of the box body 100 and the partition 300. The isolation plate 400 is connected to the inner wall of the box body 100, and the partition 300 is connected to the isolation plate 400. The space between the isolation plate 400 and the first end of the box body 100 is the first zone, and the space between the isolation plate 400 and the partition 300 is the second zone.
[0049] The isolation plate 400 is used to separate the space inside the box 100 into a first zone and a second zone. The box 100 is installed vertically, and the first end of the box 100 is connected to the installation base. The first end of the box 100 is the lower part of the box 100. The first zone is located at the lower part of the box 100 and can be used for grounding the cable shielding layer, including but not limited to grounding terminals, cable connectors extending into the box 100, etc. The first zone is a high-voltage zone. The second zone is located at the upper part of the box 100. The second zone can be used for the installation of data acquisition equipment. The second zone is a low-voltage zone. The isolation plate 400 serves to isolate the high-voltage zone from the low-voltage zone. When there is an abnormality such as a fault in the data acquisition equipment, the staff can repair the equipment in the low-voltage zone, and the isolation plate 400 serves to protect it.
[0050] Furthermore, the cover 110 is bolted to the housing 100, making it easy to remove the cover 110 and access the low-voltage area through the upper opening of the housing 100. Preferably, the bolts connecting the cover 110 and the housing 100 are equipped with anti-tamper screws at opposite corners, requiring only specialized personnel to remove them using tools. This allows personnel to maintain data acquisition equipment in the low-voltage area without shutting down the power supply or opening the housing door, while also preventing them from being exposed to the safety risks of the high-voltage area.
[0051] It should be understood that the partition 300 is connected to the isolation plate 400, and the isolation plate 400 is further connected to the box body 100. In fact, the partition 300 is indirectly connected to the box body 100, and it should also be understood that the partition 300 is connected to the box body 100.
[0052] Reference Figure 6 As shown, it can be understood that the isolation plate 400 includes a second connecting frame 410, which is connected to the inner wall of the box body 100, and the second connecting frame 410 is provided with a raised plate surface, which is docked with the second connecting frame 410 to form a accommodating cavity 401, and the plate surface is raised toward the first end direction of the box body 100, and the second connecting frame 410 is attached to the first connecting frame 310.
[0053] The raised panel creates a cavity 401 within the isolation plate 400, which can be used as a mounting space for data acquisition equipment. Furthermore, the cavity 401 and the space formed by the arc-shaped connecting wall can be combined, allowing the isolation plate 400 and the partition 300 to fully protect the data acquisition equipment. The first and second connection frames 310 and 410 are placed adjacent to each other, providing a seal.
[0054] Specifically, it is understandable that a sealing groove 313 is provided on one side of the first connection frame 310 facing the second connection frame 410 . The sealing groove 313 is provided around the circumference of the first connection frame 310 , and a sealing ring is provided in the sealing groove 313 .
[0055] The sealing ring may be an O-ring. An O-ring is a sealing ring with a circular cross-section. The sealing ring may be made of rubber.
[0056] It is understandable that at least two positioning posts 411 are provided on a surface of the second connection frame 410 facing the first connection frame 310 , and the first connection frame 310 is correspondingly provided with positioning holes 314 , and the positioning posts 411 are used to penetrate the positioning holes 314 .
[0057] The cooperation between the positioning posts 411 and the positioning holes 314 facilitates the rapid positioning of the isolation plate 400 and the partition plate 300 during assembly, and is beneficial to the fitting of the first connection frame 310 and the second connection frame 410 to improve the sealing effect therebetween.
[0058] It's understood that the cross-section of the lid 110 is angular. Specifically, in the cross-section of the lid 110, the top of the lid 110 and the two connecting points of the lid 110 and the housing 100 together form a virtual triangle. This angular structure of the lid 110 facilitates directing water from the external environment to the bottom of the housing 100 for drainage. For example, rainwater falling onto the lid 110 flows out along the inclined surface of the lid 110, rather than pooling at the top and causing corrosion and rust.
[0059] In addition, the box cover 110 with an angular structure has better stability, higher structural strength, and is not easily deformed.
[0060] It is understandable that the thermal insulation layer 200 is provided on one side surface of the box cover 110 located inside the box body 100 , and the thermal insulation layer 200 includes any one of an asbestos layer, a glass wool layer or a polyurethane layer.
[0061] Typically, the box cover 110 is made of metal, which has higher heat transfer performance than air. The insulation layer 200 is provided on one side of the box cover 110 located inside the box body 100, thereby trapping heat in the air inside the box body 100 before it reaches the box cover 110. The insulation layer 200 can be formed by laying a layer of asbestos, a layer of glass wool, or a layer of polyurethane on the inner surface of the box cover 110.
[0062] Furthermore, a waterproof layer can be provided. The waterproof layer includes, but is not limited to, waterproof coils, composite waterproof coatings, and the like. The waterproof layer is provided on the surface of the insulation layer 200, that is, the insulation layer 200 is positioned between the waterproof layer and the surface of the box cover 110. The waterproof layer must be laid flat and free of cracks, and must fully cover the surface of the insulation layer 200. The waterproof layer is used to prevent external moisture from entering the box body 100.
[0063] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. An anti-condensation vertical intelligent grounding box, characterized in that: include: A box body (100), the box body (100) comprising a first end and a second end opposite to each other, the second end of the box body (100) being provided with a box cover (110); a heat-insulating layer (200), the heat-insulating layer (200) being disposed on the box cover (110); A partition (300) is provided inside the box body (100), and the partition (300) is located on a side close to the box cover (110). The partition (300) is connected to the inner wall of the box body (100) to separate the box body (100) into different spaces. The partition (300) has a raised guide surface, and the raised direction of the guide surface faces the box cover (110). The partition (300) is provided with a drainage channel (301), and the drainage channel (301) is connected to the guide surface. The drainage channel (301) also extends to the outside of the box body (100).
2. The anti-condensation vertical intelligent grounding box according to claim 1, characterized in that: The partition (300) comprises a first connecting frame (310) for connecting to the box body (100), the first connecting frame (310) being provided with an arc-shaped connecting wall, the connecting wall being connected to the first connecting frame (310), and the outer sidewall of the connecting wall forming the guide surface.
3. The anti-condensation vertical intelligent grounding box according to claim 2, characterized in that: A circle of guide grooves (311) is provided at the joint between the first connecting frame (310) and the connecting wall. The guide grooves (311) are located on the first connecting frame (310). The guide grooves (311) are provided with at least one guide point. Starting from the guide point, the depth of the guide grooves (311) gradually decreases in a direction away from the guide point within the guide grooves (311).
4. The anti-condensation vertical intelligent grounding box according to claim 3, characterized in that: The first connection frame (310) is provided with a water outlet hole (312), the water outlet hole (312) is located at the drainage point, and is provided with a conduit, one end of the conduit is connected to the water outlet hole (312), and the other end of the conduit is connected to the outside of the box (100).
5. The anti-condensation vertical intelligent grounding box according to claim 2, characterized in that: An isolation plate (400) is provided inside the box body (100), and the isolation plate (400) is arranged between the first end of the box body (100) and the partition (300). The isolation plate (400) is connected to the inner wall of the box body (100), and the partition (300) is connected to the isolation plate (400). The space between the isolation plate (400) and the first end of the box body (100) is a first zone, and the space between the isolation plate (400) and the partition (300) is a second zone.
6. The anti-condensation vertical intelligent grounding box according to claim 5, characterized in that: The isolation plate (400) includes a second connecting frame (410), the second connecting frame (410) is connected to the inner wall of the box body (100), the second connecting frame (410) is provided with a raised plate surface, the plate surface and the second connecting frame (410) are docked to form a receiving cavity (401), the plate surface is raised toward the first end of the box body (100), and the second connecting frame (410) is attached to the first connecting frame (310).
7. The anti-condensation vertical intelligent grounding box according to claim 6, characterized in that: A sealing groove (313) is provided on a surface of one side of the first connecting frame (310) facing the second connecting frame (410). The sealing groove (313) is arranged around the circumference of the first connecting frame (310), and a sealing ring is provided in the sealing groove (313).
8. The anti-condensation vertical intelligent grounding box according to claim 6, characterized in that: At least two positioning posts (411) are provided on a surface of one side of the second connection frame (410) facing the first connection frame (310), and the first connection frame (310) is correspondingly provided with a positioning hole (314), and the positioning posts (411) are used to penetrate the positioning hole (314).
9. The anti-condensation vertical intelligent grounding box according to claim 1, characterized in that: The cross-section of the box cover (110) is an angular structure.
10. The anti-condensation vertical intelligent grounding box according to claim 1, characterized in that: The thermal insulation layer (200) is provided on a surface of one side of the box cover (110) located inside the box body (100), and the thermal insulation layer (200) comprises any one of an asbestos layer, a glass wool layer, or a polyurethane layer.