Electric energy metering box for outdoor environment

Abstract

The invention relates to the technical field of electric energy metering boxes, in particular to an electric energy metering box for an outdoor environment. Comprising a machine box and a dehumidification device, the side wall of the machine box is rotationally connected with a main door and an auxiliary door, the dehumidification device is arranged in the machine box, the dehumidification device comprises a frame inserted in the machine box, a plurality of cylinders are fixedly connected in the frame, heating rods are inserted in the frame and the cylinders, a plurality of storage plates are inserted in the frame, and the storage plates are arranged in the machine box. An activated carbon plate is inserted into the storage plate, a plurality of wear-resisting devices are arranged on the side wall of the frame, each wear-resisting device comprises two rubber sleeves arranged on the surface of the heating rod in a sleeving mode, a ventilation device is arranged at the bottom end of the machine box, and the activated carbon plate in the dehumidification device actively adsorbs water vapor in the box to achieve dehumidification; and the heating rods are matched to heat and dry the activated carbon plate adsorbing water vapor and air in the box, so that reuse of the activated carbon plate is achieved, the maintenance cost is reduced, and the dual dehumidification effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of electricity metering box technology, and more specifically, to an electricity metering box for outdoor environments. Background Technology

[0002] An electricity metering box is a device used for measuring electricity consumption. It is mainly used to measure, record, and transmit electricity consumption data. Through measurement modules such as voltage transformers and current transformers, it collects parameters such as voltage and current of electrical equipment in real time and converts them into standard analog or digital signals.

[0003] According to existing technology, a significant portion of electricity metering boxes need to be installed and used in outdoor environments. In some areas, the air humidity is high, such as in the southern rainy season when the humidity reaches over 90% RH and there is a large temperature difference between day and night. This can easily lead to condensation inside the box. Since moisture can seep into the box through gaps, the moisture inside the box adheres to the surface of metal parts such as the meter terminals and current transformers, which can damage the insulation layer and cause leakage or short circuits. Summary of the Invention

[0004] This invention provides an energy metering box for outdoor environments. It achieves dehumidification by actively adsorbing moisture from the box using an activated carbon plate in its dehumidification device. A heating rod is then used to heat and dry the activated carbon plate and the air inside the box after the moisture has been adsorbed. This not only allows for the regeneration and reuse of the activated carbon plate, reducing maintenance costs, but also creates a dual dehumidification effect. This solves the problem mentioned in the background art: moisture can seep into the box through gaps, and the moisture inside the box adheres to the surfaces of metal components such as the meter terminals and current transformers, damaging the insulation layer and causing leakage or short circuits.

[0005] To achieve the above objectives, an outdoor energy metering box includes a casing and a dehumidification device. The casing has a main door and a secondary door rotatably connected to its side wall. The dehumidification device is located inside the casing and includes a frame inserted inside the casing. Multiple cylinders are fixedly connected inside the frame. Heating rods are inserted inside the frame and cylinders. Multiple storage plates are inserted inside the frame, and activated carbon plates are inserted inside the storage plates. The sidewall of the frame is provided with multiple wear-resistant devices, including two rubber sleeves that are fitted onto the surface of the heating rod. The two rubber sleeves are used to separate the outer sheath of the heating rod power cord from the frame. The bottom of the chassis is equipped with a ventilation device, which includes two fan groups located directly below the chassis. The two fan groups are used to drive the airflow inside the chassis.

[0006] In the above technical solution, the internal threaded connection between the storage plate and the frame has two mounting bolts, the surface of the storage plate has multiple ventilation slots, the inside of the storage plate has a baffle, the internal threaded connection between the storage plate and the baffle has two limiting bolts, the surface of the frame has multiple through holes, the surface of the chassis has a storage groove, the frame is inserted into the storage groove of the chassis, two support columns are fixedly connected to both sides of the chassis, the surface of the support columns is rotatably connected to a rotating block, and the rotating block and the internal threaded connection between the frame and a positioning bolt are provided.

[0007] Secondly, a sleeve block is fixedly connected to the side wall of the frame near the heating rod. Two rubber sleeves are inserted inside the sleeve block. Multiple locking pins are fixedly connected inside the sleeve block. The rubber sleeve is fitted onto the surface of the locking pins. A locking groove is opened on the surface of the rubber sleeve near the locking pin. The locking pin is inserted into the locking groove of the rubber sleeve. A pull block is fixedly connected to the side wall of the rubber sleeve.

[0008] Furthermore, based on the above, a guide plate is fixedly connected to the bottom of the chassis, and two fan assemblies are inserted inside the guide plate. Two fixing bolts are threadedly connected to the fan assemblies and the guide plate. Two cable routing holes are opened on the surface of the guide plate to provide a passage for the power cables of the fan assemblies. Two through slots are opened on the surface of the guide plate, and the two fan assemblies are respectively inserted into the two through slots of the guide plate. A fixing block is fixedly connected to the side wall of the guide plate, and a mesh plate is rotatably connected inside the fixing block. A magnetic strip is fixedly connected to the bottom of the guide plate, and the bottom end of the magnetic strip is magnetically attracted to the upper surface of the mesh plate.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: This outdoor power metering box uses an activated carbon plate in its dehumidification device to actively adsorb moisture from the box. A heating rod then heats and dries the activated carbon plate and the air inside the box after the moisture has been adsorbed. This design allows for the reuse of the activated carbon plate, reducing maintenance costs, and provides a dual dehumidification effect. The detachable connection between the storage plate and the frame, along with the fixing structure of the baffles and limit bolts, ensures sufficient contact between the activated carbon plate and the air to improve adsorption efficiency while preventing displacement and detachment, facilitating quick replacement. The ventilation device's fan assembly drives forced air circulation within the box through guide plates and slots, further enhancing dehumidification efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the frame generation structure in this invention; Figure 3 This is a partial structural schematic diagram of the dehumidification device in this invention; Figure 4This is a side view of the chassis structure in this invention; Figure 5 In this invention Figure 4 A schematic diagram of the structure at point A; Figure 6 This is a bottom view of the chassis structure in this invention; Figure 7 In this invention Figure 6 A schematic diagram of the structure at point B; Figure 8 This is a bottom view of the guide plate structure in this invention; Figure 9 In this invention Figure 8 A schematic diagram of the structure at point C.

[0011] The meanings of the labels in the diagram are as follows: 1. Chassis; 2. Main door; 3. Secondary door; 4. Dehumidifier; 401. Frame; 402. Cylinder; 403. Heating rod; 404. Storage plate; 405. Activated carbon plate; 406. Mounting bolt; 407. Baffle; 408. Limiting bolt; 409. Through hole; 410. Support column; 411. Rotating block; 412. Positioning bolt; 413. Storage slot; 5. Wear-resistant device; 51. Sleeve block; 52. Rubber sleeve; 53. Locking post; 54. Locking slot; 55. Pull block; 6. Ventilation device; 61. Guide plate; 62. Fan assembly; 63. Fixing bolt; 64. Cable routing hole; 65. Through groove; 66. Fixing block; 67. Mesh plate; 68. Magnetic strip. Detailed Implementation

[0012] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0013] Because moisture can seep into the enclosure through gaps, the moisture inside the enclosure can adhere to the surface of metal components such as the meter terminals and current transformers, which can damage the insulation layer and cause leakage or short circuits.

[0014] Therefore, in view of the above-mentioned problems, the present invention provides an energy metering box for outdoor environments, with reference to... Figures 1-5As shown, the device includes a chassis 1 and a dehumidification device 4. The side wall of the chassis 1 is rotatably connected to a main door 2 and a secondary door 3. The dehumidification device 4 is located inside the chassis 1 and includes a frame 401 inserted inside the chassis 1. The frame 401 provides a stable mounting carrier for the dehumidification components. Multiple cylinders 402 are fixedly connected inside the frame 401. Heating rods 403 are inserted inside the frame 401 and the cylinders 402. The cylinders 402 position and protect the heating rods 403, preventing them from directly contacting other components and causing local overheating damage. Multiple storage plates 404 are inserted inside the frame 401. Activated carbon plates 405 are inserted inside the storage plates 404. The activated carbon plates 405 actively adsorb moisture in the air inside the chassis 1 to achieve dehumidification. Combined with the active drying function of the heating rods 403, a dual dehumidification structure of passive adsorption and active drying is formed, which greatly improves the dehumidification efficiency. The internal threaded connection between the storage plate 404 and the frame 401 has two mounting bolts 406. The mounting bolts 406 enable the detachable connection between the storage plate 404 and the frame 401, facilitating the subsequent disassembly of the storage plate 404 for replacement or maintenance of the activated carbon plate 405. The surface of the storage plate 404 has multiple ventilation slots, which ensure that the air inside the casing 1 is in full contact with the activated carbon plate 405, thereby improving the adsorption efficiency of the activated carbon plate 405. A baffle 407 is inserted inside the storage plate 404. The internal threaded connection between the storage plate 404 and the baffle 407 has two limiting bolts 408. The cooperation between the baffle 407 and the limiting bolts 408 can firmly fix the position of the activated carbon plate 405, preventing the activated carbon plate 405 from shifting or falling off due to outdoor wind or slight vibration of the casing. The surface of the frame 401 has multiple through holes 409, which further enhance the air circulation inside and outside the frame 401, ensuring that the heat generated by the heating rod 403 can be quickly diffused to the entire area of ​​the chassis 1, avoiding local humidity residue, and also allowing the humid air to come into more full contact with the activated carbon plate 405. The surface of the chassis 1 has a storage slot 413, and the frame 401 is inserted into the storage slot 413 of the chassis 1. The storage slot 413 provides precise installation positioning for the frame 401, ensuring the assembly stability of the dehumidification device 4 and the chassis 1. Two support columns 410 are fixedly connected to both sides of the chassis 1. A rotating block 411 is rotatably connected to the surface of the support column 410. The support column 410 facilitates the rotation of the rotating block 411, thereby facilitating the disassembly of the frame 401 and reducing obstruction to the movement of the frame 401. A positioning bolt 412 is threadedly connected to the rotating block 411 and the frame 401. The positioning bolt 412 can fix the frame 401 and the rotating block 411 together, thereby reducing the possibility of lateral displacement of the frame 401.

[0015] Refer again Figure 5As shown, the side wall of the frame 401 is provided with multiple wear-resistant devices 5. The wear-resistant device 5 includes two rubber sleeves 52 that are fitted on the surface of the heating rod 403. The two rubber sleeves 52 are used to separate the outer sheath of the power cord of the heating rod 403 from the frame 401. The rubber sleeves 52 have good elasticity and wear resistance, and can directly isolate the metal contact surface between the outer sheath of the power cord and the frame 401, effectively avoiding frictional wear caused by equipment operation vibration or outdoor environmental bumps. A sleeve block 51 is fixedly connected to the side wall of the frame 401 near the heating rod 403. Two rubber sleeves 52 are inserted into the sleeve block 51. The sleeve block 51 provides installation and positioning space for the rubber sleeves 52, preventing the rubber sleeves 52 from shifting or falling off in outdoor strong winds, equipment vibrations, and other scenarios. Multiple locking posts 53 are fixedly connected inside the sleeve block 51. The rubber sleeves 52 are fitted onto the surface of the locking posts 53. A slot 54 is opened on the surface of the rubber sleeves 52 near the locking posts 53. The locking posts 53 are inserted into the slot 54 of the rubber sleeves 52. The snap-fit ​​structure between the locking posts 53 and the slot 54 can further strengthen the connection stability between the rubber sleeves 52 and the sleeve block 51. A pull block 55 is fixedly connected to the side wall of the rubber sleeve 52. The pull block 55 provides a convenient force point for the disassembly and replacement of the rubber sleeve 52. When the rubber sleeve 52 is worn and needs to be replaced after long-term use, there is no need to use complicated tools. Just pull the pull block 55 to quickly remove the rubber sleeve 52 from the sleeve block 51.

[0016] refer to Figures 6-9 As shown, a ventilation device 6 is provided at the bottom of the chassis 1. The ventilation device 6 includes two fan groups 62 located directly below the chassis 1. The two fan groups 62 are used to drive the airflow inside the chassis 1. The design of the dual fan groups 62 enhances the air circulation power, ensuring that the air in the chassis 1 can circulate quickly and avoiding local air stagnation that could lead to humidity accumulation or heat buildup. At the same time, the two fan groups 62 can also be used for air intake and exhaust respectively. A guide plate 61 is fixedly connected to the bottom of the chassis 1. The two fan groups 62 are inserted into the inside of the guide plate 61. The guide plate 61 provides a mounting and positioning carrier for the fan groups 62, ensuring that the fan groups 62 are installed in a neat position. The fan assembly 62 and the guide plate 61 are internally connected by two fixing bolts 63. The threaded connection is a reliable fixing method, which can strengthen the connection between the fan assembly 62 and the guide plate 61, and facilitate the disassembly, maintenance or replacement of the fan assembly 62. The surface of the guide plate 61 has two cable routing holes 64, which provide a passage for the power cables of the fan assembly 62. The cable routing holes 64 play a role in regulating and restraining the power cables. The surface of the guide plate 61 has two through slots 65, and the two fan assemblies 62 are respectively inserted into the two through slots 65 of the guide plate 61. The matching design of the through slots 65 and the fan assembly 62 ensures smooth airflow, allowing the fan assembly 62 to efficiently drive the air exchange inside and outside the chassis 1. A fixing block 66 is fixedly connected to the side wall of the guide plate 61. A mesh plate 67 is rotatably connected inside the fixing block 66. The mesh plate 67 can effectively block the through slot 65 and the fan assembly 62, preventing outdoor fallen leaves, dust and insects from entering the chassis 1. A magnetic strip 68 is fixedly connected to the bottom end of the guide plate 61. The bottom end of the magnetic strip 68 and the upper surface of the mesh plate 67 are magnetically attracted. The magnetic attraction between the magnetic strip 68 and the mesh plate 67 allows the mesh plate 67 to be quickly opened or closed without the aid of tools, making it easy to clean debris from the surface of the mesh plate 67 or to inspect the fan assembly 62.

[0017] The working principle of this invention: The activated carbon plate 405 in the storage plate 404 inside the frame 401, through the ventilation grooves on the surface of the storage plate 404 and the through holes 409 on the surface of the frame 401, makes full contact with the air inside the casing 1, actively adsorbing moisture in the air and reducing the humidity inside the casing; during this process, the baffle 407 and the limiting bolt 408 inside the storage plate 404 cooperate to fix the position of the activated carbon plate 405, preventing outdoor wind or casing vibration from causing the activated carbon plate 405 to shift, ensuring a stable adsorption area and guaranteeing adsorption efficiency; Once the activated carbon plate 405 has absorbed a certain amount of moisture, the heating rod 403 inside the frame 401 starts working. The heating rod 403 is positioned and the heat is evenly diffused through the cylinder 402 (to avoid local overheating and damage to components). The heat is transferred to the entire area of ​​the casing 1 through the through hole 409 of the frame 401. On the one hand, it heats and dries the humid air inside the casing, reducing the overall humidity; on the other hand, it heats and regenerates the activated carbon plate 405 after it has absorbed moisture, evaporating the moisture absorbed inside and restoring the adsorption capacity of the activated carbon plate 405, eliminating the need for frequent replacement and extending its service life. The frame 401 is double-fixed by the storage slot 413 of the casing 1 and the two side support columns 410, rotating blocks 411, and positioning bolts 412, ensuring its own position is stable during heating and adsorption, and avoiding the impact of outdoor environment on the continuity of dehumidification function. When it is necessary to replace the activated carbon plate 405, rotate the positioning bolt 412 out of the rotating block 411 and the frame 401, then rotate the rotating block 411 to move it away from the frame 401, and then remove the frame 401 from the chassis 1. After the frame 401 is removed, remove the mounting bolt 406 that connects the storage plate 404 to the frame 401, remove the storage plate 404, and then remove the baffle 407 and the limiting bolt 408. The activated carbon plate 405 can be replaced quickly. Two rubber sleeves 52, which are fitted onto the power cord of the heating rod 403, directly separate the outer sheath of the power cord from the metal wall of the frame 401. The elasticity and wear resistance of the rubber material prevent the power cord from rubbing against the frame 401 due to vibration during equipment operation or outdoor bumps. The sleeve block 51 on the side wall of the frame 401 provides installation and positioning space for the rubber sleeve 52. The locking post 53 inside the sleeve block 51 and the locking groove 54 on the surface of the rubber sleeve 52 engage to fix the position of the rubber sleeve 52. When the rubber sleeve 52 wears out after long-term use, it can be quickly removed from the sleeve block 51 and replaced by the pull block 55 on the side wall of the rubber sleeve 52. After the two fan groups 62 inside the bottom guide plate 61 of the chassis 1 are started, air circulation is achieved through the through groove 65 of the guide plate 61. It can be set to a one-in-one-out mode (one fan group 62 draws in dry air from the outside and the other fan group 62 exhausts humid air from the chassis) or a bidirectional accelerated circulation mode to drive the air inside the chassis 1 to flow rapidly. During this process, the air circulation accelerates the contact between the humid air inside the chassis and the activated carbon plate 405, improving the adsorption efficiency of the dehumidification device 4. On the other hand, it quickly exhausts the heat generated by the metering element to the outside of the chassis, avoiding the element from being affected by high temperature overload, thus achieving the dual functions of dehumidification and heat dissipation. The fan assembly 62 is positioned and installed via the guide plate 61, and securely connected with the fixing bolts 63 to prevent displacement of the fan assembly 62 due to outdoor environment. The cable routing holes 64 on the surface of the guide plate 61 provide a neat channel for the power cable of the fan assembly 62, preventing the power cable from being tangled and causing short circuit risk. The mesh plate 67 on the side wall of the guide plate 61 is fixed to the magnetic strip 68 by rotating the fixing block 66. During air circulation, it blocks the through groove 65 and the fan assembly 62, preventing outdoor leaves, dust, and insects from entering the chassis 1 and clogging the fan or contaminating the metering components, ensuring the normal operation of the fan assembly 62. When it is necessary to clean the mesh plate 67 or repair the fan assembly 62, the magnetically fixed mesh plate 67 can be lifted directly, which is convenient and ensures continuous and stable ventilation function.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor energy metering box, comprising a casing (1) and a dehumidification device (4), characterized in that: The side wall of the chassis (1) is rotatably connected to a main door (2) and a secondary door (3). The dehumidification device (4) is installed inside the chassis (1). The dehumidification device (4) includes a frame (401) inserted inside the chassis (1). Multiple cylinders (402) are fixedly connected inside the frame (401). Heating rods (403) are inserted inside the frame (401) and the cylinders (402). Multiple storage plates (404) are inserted inside the frame (401). Activated carbon plates (405) are inserted inside the storage plates (404). The sidewall of the frame (401) is provided with a plurality of wear-resistant devices (5). The wear-resistant devices (5) include two rubber sleeves (52) that are fitted on the surface of the heating rod (403). The two rubber sleeves (52) are used to separate the outer sheath of the power cord of the heating rod (403) from the frame (401). The bottom of the chassis (1) is provided with a ventilation device (6), which includes two fan groups (62) located directly below the chassis (1). The two fan groups (62) are used to drive the airflow inside the chassis (1).

2. The power metering box for outdoor environments according to claim 1, characterized in that: The internal threaded connection between the storage plate (404) and the frame (401) has two mounting bolts (406), and the surface of the storage plate (404) has multiple ventilation grooves.

3. The power metering box for outdoor environments according to claim 1, characterized in that: A baffle (407) is inserted inside the storage plate (404), and two limiting bolts (408) are threadedly connected inside the storage plate (404) and the baffle (407).

4. The power metering box for outdoor environments according to claim 1, characterized in that: The surface of the frame (401) has multiple through holes (409), and the surface of the chassis (1) has a storage groove (413). The frame (401) is inserted into the storage groove (413) of the chassis (1).

5. The power metering box for outdoor environments according to claim 1, characterized in that: Two support columns (410) are fixedly connected to both sides of the chassis (1). A rotating block (411) is rotatably connected to the surface of the support column (410). A positioning bolt (412) is threadedly connected to the rotating block (411) and the frame (401).

6. The power metering box for outdoor environments according to claim 1, characterized in that: A sleeve block (51) is fixedly connected to the side wall of the frame (401) near the heating rod (403). Two rubber sleeves (52) are inserted inside the sleeve block (51). Multiple locking posts (53) are fixedly connected inside the sleeve block (51). The rubber sleeves (52) are fitted onto the surface of the locking posts (53).

7. The power metering box for outdoor environments according to claim 6, characterized in that: The rubber sleeve (52) has a slot (54) near the locking post (53) on its surface. The locking post (53) is inserted into the slot (54) of the rubber sleeve (52). A pull block (55) is fixedly connected to the side wall of the rubber sleeve (52).

8. The power metering box for outdoor environments according to claim 1, characterized in that: The bottom of the chassis (1) is fixedly connected to a guide plate (61), and two fan assemblies (62) are inserted inside the guide plate (61). The fan assembly (62) and the guide plate (61) are internally threaded with two fixing bolts (63). The surface of the guide plate (61) has two cable routing holes (64), which are used to provide a passage for the power cables of the fan assembly (62).

9. The power metering box for outdoor environments according to claim 8, characterized in that: The guide plate (61) has two through slots (65) on its surface, and the two fan assemblies (62) are respectively inserted into the two through slots (65) of the guide plate (61).

10. The power metering box for outdoor environments according to claim 8, characterized in that: A fixing block (66) is fixedly connected to the side wall of the guide plate (61), and a mesh plate (67) is rotatably connected inside the fixing block (66). A magnetic strip (68) is fixedly connected to the bottom end of the guide plate (61), and the bottom end of the magnetic strip (68) and the upper surface of the mesh plate (67) are magnetically attracted.

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