Electrical box
By installing a detachable switch protective cover in the electrical box and connecting it to the fixing pins on the mounting base, the problem of accidental contact with switch components inside the electrical box is solved, thereby improving the safety and ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HONGYAN GAIYIER ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-05-01
AI Technical Summary
In the field of electrical engineering, the operating interface of equipment inside electrical boxes is cramped, and personnel are prone to accidentally touching switching components, causing equipment shutdown and resulting in economic losses.
By installing a detachable connection structure between the switch protective cover and the mounting base plate in the electrical box, the switching components are physically isolated from other equipment using fixing pins, and the wires are stored in the wire storage cavity to avoid accidental contact and wire wear.
It effectively prevents accidental activation of switching components, reduces wire wear, improves equipment operation safety and aesthetics, and enhances connection stability and ease of operation.
Smart Images
Figure CN224191465U_ABST
Abstract
Description
An electrical box Technical Field
[0001] This utility model relates to the field of electrical engineering, and in particular to an electrical box. Background Technology
[0002] In the field of electrical engineering, electrical boxes serve as core control hubs, integrating switching elements, measuring instruments, protective electrical appliances, and other equipment. These devices achieve signal transmission and logic control through precise electrical wiring. However, with the increasing integration of functions, the operating interface inside the box is cramped, and personnel are prone to accidentally touching switching elements during operation, leading to equipment shutdown and economic losses. Summary of the Invention
[0003] To address the technical problem of accidental activation of switch components by operators, this invention provides an electrical box that isolates the switch components from other equipment, thereby reducing the risk of accidental activation.
[0004] The specific technical solution of this utility model is as follows: an electrical box, including a box body with a front opening and a front cover that closes to the opening of the box body. A mounting base plate is connected inside the box body to divide the box body from front to back into an electrical component placement cavity and a wire storage cavity. A switch element and a switch protective cover are detachably connected to the side of the mounting base plate facing the electrical component placement cavity. The switch element is located inside the switch protective cover. A wire passage is provided on the mounting base plate, and the wire connected to the switch element enters the wire storage cavity through the wire passage.
[0005] The switching element is equipped with a removable protective cover to physically isolate it from other equipment. When the switching element needs to be operated, simply open the front cover and remove the protective cover from the mounting base. After operation, the protective cover can be reinstalled on the mounting base, effectively preventing personnel from accidentally touching the switching element during other operations. The wires are stored in the wire storage cavity, separating them from the electrical components and avoiding frequent contact with the wires during operation, which could cause wear on the wire insulation. At the same time, the wire storage cavity is located behind the electrical component placement cavity, reducing the corrosion of the wires by moisture and dust, improving equipment operation safety, and also enhancing aesthetics.
[0006] Preferably, the outer side wall of the switch protective cover is provided with a connecting part, and a fixing pin and a first through-hole for the fixing pin to pass through are provided in the connecting part. A second through-hole for the fixing pin to pass through is provided on the mounting base plate. The fixing pin is inserted into the first through-hole and the second through-hole to realize the connection between the switch protective cover and the mounting base plate.
[0007] In the above technical solution, the switch protective cover and the mounting base are connected by fixing pins. The switch protective cover and the mounting base can be quickly connected and separated by simply inserting and removing the fixing pins. The connection structure is simple and the operation is convenient.
[0008] Preferably, the insertion end of the fixing pin is provided with an abutment portion. When the fixing pin is inserted into the second port, the fixing pin is rotated so that the front end of the abutment portion abuts against the surface of the mounting base plate near the wire storage cavity, preventing the fixing pin from dislodging from the second port.
[0009] In the above technical solution, an abutment part is provided on the fixing pin. Through the abutment part abutting against the mounting base plate, the fixing pin and the mounting base plate are quickly locked together, which improves the connection stability of the switch protective cover and effectively prevents the fixing pin from dislodging from the second port due to vibration or personnel contact, thus preventing the switch protective cover from falling off.
[0010] Preferably, the width of the abutting portion gradually narrows from front to back.
[0011] In the above technical solution, when the fixing pin is inserted into the second port, the narrow end, as the positioning end, is easier to align with the second port, and the width transition can play a guiding role during the insertion of the fixing pin, guiding the fixing pin to be smoothly inserted into the second port in the correct direction, thereby improving the connection efficiency.
[0012] Preferably, the end of the fixing pin away from the mounting base plate is provided with a slot in the shape of a line, a cross, or a star, so as to cooperate with an external tool to rotate the fixing pin.
[0013] In the above technical solution, the slot provides a stable connection point and force application point for external tools. External tools such as screwdrivers are inserted into the slot to drive the fixing pin to rotate, thereby locking the fixing pin with the mounting base plate. Compared with turning the fixing pin by hand, the rotation process is more labor-saving, efficient and controllable with the help of tools. The slot is set to a straight, cross or star shape, which can be adapted to a variety of common tools. In most environments, a suitable tool can be found to cooperate with the slot, which improves the applicability of the electrical box.
[0014] Preferably, the fixing pin is provided with a limiting sleeve. During the process of inserting the fixing pin into the connecting part, the limiting sleeve abuts against the first opening, restricting the fixing pin from being inserted further.
[0015] In the above technical solution, if the fixing pin is inserted too deeply, it will be difficult to remove; if it is inserted too shallowly, it will conflict with other components. By setting a limiting sleeve, the operator does not need to repeatedly adjust the insertion depth of the fixing pin. The operator only needs to insert the fixing pin until the limiting sleeve abuts against the first port to confirm that it is inserted in place, which improves the connection efficiency between the switch protective cover and the mounting base plate.
[0016] Preferably, the end of the connecting part away from the mounting base plate is provided with a guide groove with the opening facing forward, and the first through-hole is provided at the bottom of the guide groove. When the fixing pin is inserted into the connecting part, the guide groove guides the fixing pin.
[0017] In the above technical solution, a guide groove is set to guide the fixing pin when it is inserted into the first port. After the fixing pin successfully passes through the first port, the guiding effect of the guide groove continues to play a role, so that the fixing pin can be inserted into the second port in a predetermined direction, thereby improving the connection efficiency between the switch protective cover and the mounting base plate.
[0018] Preferably, the guide groove is provided with an opening on the side away from the switch protective cover.
[0019] In the above technical solution, the guide groove is set with an opening on the side away from the switch protective cover, and the fixed needle is located in the guide groove with a large contact area, which makes it easy to pick up the fixed needle.
[0020] Preferably, the mounting base plate is connected to a meter on the side facing the electrical component placement cavity. The meter is located outside the switch protective cover. The front cover includes a protrusion with a viewing window that corresponds to the meter reading area.
[0021] In the above technical solution, the protrusion maintains a suitable distance between the viewing window and the meter, avoiding the viewing window being too close to the meter and affecting the reading of the meter data; at the same time, the protrusion expands the capacity of the electrical component placement cavity without increasing the volume of the cabinet, and improves the flexibility of the electrical component layout.
[0022] Preferably, the box body is provided with a door frame, the door frame is provided with an abutting surface, the front cover abuts against the abutting surface to cover the opening of the box body, and a sealing element is provided on the abutting surface to seal the gap between the door frame and the front cover.
[0023] In the above technical solution, a sealing element is set to seal the gap between the door frame and the front cover, reducing the entry of dust or moisture from the environment into the cabinet through the gap, and avoiding adverse effects on the electrical components and wires inside the cabinet.
[0024] Compared with the prior art, the present invention has the following advantages:
[0025] (1) Reduce the risk of accidental contact: The switch protective cover and the mounting base are connected by fixing pins. The switch protective cover and the mounting base can be quickly connected and separated by simply inserting and removing the fixing pins. The connection structure is simple and easy to operate, so as to achieve physical isolation of the switch element from other equipment. When it is necessary to operate the switch element, simply open the front cover and remove the switch protective cover from the mounting base. After the operation is completed, the switch protective cover is put back into the mounting base, which effectively prevents personnel from accidentally touching the switch element when performing other operations.
[0026] (2) The switch protection cover is stable and easy to install and remove; the switch protection cover and the mounting base are connected by fixing pins. The switch protection cover and the mounting base can be quickly connected and separated by simply inserting and removing the fixing pins. The fixing pins are provided with abutting parts. By abutting the mounting base with the abutting parts, the fixing pins and the mounting base can be quickly locked together, which improves the connection stability of the switch protection cover.
[0027] (3) High safety: The gap between the door frame and the front cover is sealed by a sealing element, which reduces the amount of dust or moisture in the environment that may enter the cabinet and cause adverse effects on the electrical components and wires inside the cabinet. The wires are stored in the wire storage cavity, which separates the wires from the electrical components and avoids frequent contact with the wires during operation, which may cause wear on the insulation layer of the wires. At the same time, the wire storage cavity is located behind the electrical component placement cavity, which reduces the corrosion of the wires by moisture and dust and improves the safety of equipment operation. Attached Figure Description
[0028] Figure 1 is a structural schematic diagram of the electrical box of this utility model;
[0029] Figure 2 is a front view of the electrical box of this utility model;
[0030] Figure 3 is a cross-sectional view at point cc in Figure 2;
[0031] Figure 4 is a schematic diagram of the internal structure of the electrical box of this utility model.
[0032] Figure 5 is a schematic diagram of the internal structure of the electrical box of this utility model.
[0033] Figure 6 is a structural schematic diagram of the switch protective cover of this utility model;
[0034] Figure 7 is a front view of the switch protective cover of this utility model;
[0035] Figure 8 is a structural schematic diagram of the fixing pin of this utility model.
[0036] The attached diagram is labeled as follows: 1. Box body; 11. Door frame; 12. Abutment surface; 13. Electrical component housing cavity; 14. Wire storage cavity; 2. Front cover; 21. Protrusion; 22. Opening; 3. Viewing window; 4. Sealing element; 5. Switch protective cover; 51. Connecting part; 53. Guide groove; 54. First opening; 6. Switch element; 7. Mounting base plate; 71. Wire passage; 72. Second opening; 8. Connecting support plate; 9. Fixing pin; 91. Slot; 92. Limiting sleeve; 93. Abutment part; 10. Electricity meter. Detailed Implementation
[0037] The present invention will be further described below with reference to embodiments. Unless otherwise specified, all devices, connection structures, and methods involved in this invention are known in the art.
[0038] Example 1
[0039] Referring to Figures 1 to 8, this utility model provides an electrical box, including a box body 1 with a front opening and a front cover 2 that closes to the opening of the box body 1. The front cover 2 is pivotally connected to the box body 1. The side of the front cover 2 away from the pivot axis is provided with an opening 22. The operator opens the front cover 2 through the opening 22. The box body 1 is connected to a mounting base plate 7 to divide the box body 1 from front to back into an electrical component placement cavity 13 and a wire storage cavity 14. A switch element 6 and a switch protective cover 5 are detachably connected to the side of the mounting base plate 7 facing the electrical component placement cavity 13. The switch element 6 is located inside the switch protective cover 5. A wire passage 71 is provided on the mounting base plate 7. The wire connected to the switch element 6 enters the wire storage cavity 14 through the wire passage 71. The bottom of the wire storage cavity 14 is provided with an outlet for the power supply wire to pass through the electrical box.
[0040] The switch element 6 is equipped with a removable switch protective cover 5 to physically isolate the switch element 6 from other equipment. When it is necessary to operate the switch element 6, simply open the front cover 2 and remove the switch protective cover 5 from the mounting base plate 7. After the operation is completed, the switch protective cover 5 is put back into the mounting base plate 7, which effectively prevents personnel from accidentally touching the switch element 6 during other operations. The wires are stored in the wire storage cavity 14, which separates the wires from the electrical components and avoids frequent contact with the wires during operation, which would cause wear on the insulation layer of the wires. At the same time, the wire storage cavity 14 is located behind the electrical component placement cavity 13, which reduces the corrosion of the wires by moisture and dust, improves the safety of equipment operation, and also improves the aesthetics.
[0041] In this embodiment, as shown in Figures 4, 6, and 7, a connecting portion 51 is provided on each of the left and right outer walls of the switch protective cover 5. The connecting portion 51 extends in the front-to-back direction and has the same length as the switch protective cover 5 in the front-to-back direction. A fixing pin 9 and a first opening 54 for the fixing pin 9 to pass through are detachably provided in the connecting portion 51. A corresponding second opening 72 for the fixing pin 9 to pass through is provided on the mounting base plate 7. The width of the first opening 54 and the second opening 72 is equal to the maximum width of the insertion end of the fixing pin 9. After the fixing pin 9 is inserted into the first opening 54 and the second opening 72, the insertion end extends into the wire storage cavity 14, thereby connecting the switch protective cover 5 and the mounting base plate 7. It can be understood that the length of the connecting portion 51 in the front-to-back direction can be longer or shorter than that of the switch protective cover 5, and the width of the first opening 54 and the second opening 72 can be greater than the maximum width of the insertion end of the fixing pin 9. The position of the connecting portion 51 can be flexibly adjusted according to the local operating interface inside the electrical box. In the figures, direction B is from back to front. The switch protective cover 5 and the mounting base plate 7 are connected by fixing pins 9. The switch protective cover 5 and the mounting base plate 7 can be quickly connected and separated by simply inserting and removing the fixing pins 9. The connection structure is simple and the operation is convenient. There is a connecting part 51 on each of the left and right outer walls of the switch protective cover 5 to improve the stability of the connection of the switch protective cover 5.
[0042] In another embodiment, the top of the switch protective cover 5 is provided with a connecting part 51. The connecting part 51 extends in the front-back direction and passes through the center of the upper outer wall. A fixing pin 9 and a first through-hole 54 for the fixing pin 9 to pass through are detachably provided in the connecting part 51. A second through-hole 72 for the fixing pin 9 to pass through is correspondingly provided on the mounting base plate 7. After the fixing pin 9 is inserted into the first through-hole 54 and the second through-hole 72, the inserted end extends into the wire storage cavity 14 to realize the connection between the switch protective cover 5 and the mounting base plate 7. The switch protective cover 5 is provided with only one connecting part 51. Compared with the design of multiple connecting parts 51, the structural complexity of the switch protective cover 5 is greatly reduced, which is convenient for processing. Moreover, only one fixing pin 9 is needed to realize the quick connection and separation of the switch protective cover 5 and the mounting base plate 7.
[0043] In this embodiment, as shown in Figures 6 and 7, the end of the connecting part 51 away from the mounting base plate 7 is provided with a guide groove 53 with an opening facing forward. The first through-hole 54 is located at the bottom of the guide groove 53. When the fixing pin 9 is inserted into the connecting part 51, the guide groove 53 guides the fixing pin 9. The guide groove 53 guides the fixing pin 9 when it is inserted into the first through-hole 54. After the fixing pin 9 successfully passes through the first through-hole 54, the guiding effect of the guide groove 53 continues to play a role, allowing the fixing pin 9 to smoothly insert into the second through-hole 72 along a predetermined direction, thereby improving the connection efficiency between the switch protective cover 5 and the mounting base plate 7. At the same time, during the process of the fixing pin 9 being inserted into the first through-hole 54, the side wall of the guide groove 53 can limit the deviation of the fixing pin 9 in its direction.
[0044] In this embodiment, as shown in Figure 6, the guide groove 53 has an opening on the side away from the switch protective cover 5. The fixing pin 9 has a large contact area within the guide groove 53, making it easy to pick up the fixing pin. When it is necessary to remove the switch protective cover 5, the operator can pinch the fixing pin 9 with their fingers at the U-shaped groove and pull it out. This operation method is both convenient and labor-saving. The side of the guide groove 53 closest to the switch protective cover 5 is recessed into the switch protective cover 5, making the structure of the switch protective cover 5 more compact and facilitating the layout of the operating interface.
[0045] In this embodiment, as shown in Figure 8, the insertion end of the fixing pin 9 is provided with an abutment portion 93. The abutment portion 93 extends outward in the width direction along the periphery of the insertion end of the fixing pin 9. After the fixing pin 9 is inserted into the second opening 72, the fixing pin 9 is rotated so that the front end of the abutment portion 93 abuts against the surface of the mounting base plate 7 near the wire storage cavity 14, preventing the fixing pin 9 from detaching from the second opening 72. It can be understood that when the fixing pin 9 is inserted into the second opening 72, there may also be a gap between the front end of the abutment portion 93 and the surface of the mounting base plate 7 near the wire storage cavity 14. By rotating the fixing pin 9, the front end of the abutment portion 93 and the second opening 72 are made to intersect in space, thereby achieving the anti-detachment function. The abutment portion 93 is provided on the fixing pin 9. Through the abutment of the abutment portion 93 with the mounting base plate 7, the fixing pin 9 and the mounting base plate 7 are quickly locked together, improving the connection stability of the switch protective cover 5 and effectively preventing the fixing pin 9 from detaching from the second opening 72 due to vibration or personnel contact, thus preventing the switch protective cover 5 from falling off.
[0046] In this embodiment, as shown in Figure 8, the width of the abutment portion 93 gradually narrows from front to back, and an inclined angle is provided between the front and rear ends for width transition. It is understood that the abutment portion 93 can also adopt an arc-shaped structure. When the fixing pin 9 is inserted into the second port 72, the narrow end, as the positioning end, is easier to align with the second port 72, and the width transition can play a guiding role during the insertion of the fixing pin 9, guiding the fixing pin 9 to smoothly insert into the second port 72 in the correct direction, thereby improving connection efficiency. In the figure, direction A represents the width direction.
[0047] In this embodiment, as shown in Figure 8, the end of the fixing pin 9 furthest from the mounting base plate 7 is provided with a star-shaped slot 91 to cooperate with external tools to rotate the fixing pin 9. It is understood that the slot 91 can also be designed as a straight line, a cross shape, or other shapes that can accommodate commonly used external tools. The slot 91 provides a stable connection point and force application point for external tools. When an external tool, such as a screwdriver, is inserted into the slot 91, it drives the fixing pin 9 to rotate, completing the locking of the fixing pin 9 with the mounting base plate 7. Compared to rotating the fixing pin 9 by hand, using a tool makes the rotation process more effortless, efficient, and controllable. Setting the slot 91 as a straight line, cross shape, or star shape allows it to accommodate a variety of common tools, ensuring that suitable tools can be found to cooperate with the slot 91 in most environments, thus improving the applicability of the electrical box.
[0048] In this embodiment, as shown in Figure 8, a limiting sleeve 92 is provided on the fixing pin 9. During the insertion of the fixing pin 9 into the connecting part 51, the limiting sleeve 92 abuts against the first opening 54, restricting the fixing pin 9 from being inserted further. If the fixing pin 9 is inserted too deeply, it will be difficult to remove; if it is inserted too shallowly, it will cause conflict with other components. The limiting sleeve 92 is provided so that the operator does not need to repeatedly adjust the insertion depth of the fixing pin 9. The operator only needs to insert the fixing pin 9 until the limiting sleeve 92 abuts against the first opening 54 to confirm that it is inserted in place, which improves the connection efficiency between the switch protective cover 5 and the mounting base plate 7.
[0049] In this embodiment, as shown in Figures 1 to 3, a meter 10 is connected to the side of the mounting base 7 facing the electrical component mounting cavity 13. The meter 10 is located outside the switch protective cover 5. The front cover 2 includes a protrusion 21, on which a viewing window 3 is provided. The viewing window 3 corresponds to the reading area of the meter 10. The protrusion 21 maintains a suitable distance between the viewing window 3 and the meter 10, avoiding the viewing window 3 being too close to the meter 10 and affecting the data reading of the meter 10. At the same time, the protrusion 21 expands the capacity of the electrical component mounting cavity 13 without increasing the volume of the housing 1, improving the flexibility of the electrical component layout.
[0050] In this embodiment, a door frame 11 is provided at the opening of the housing 1, and an abutment surface 12 is provided on the door frame 11. The front cover 2 abuts against the abutment surface 12 to close the opening of the housing 1. A sealing element 4 is provided on the abutment surface 12 to seal the gap between the door frame 11 and the front cover 2. In this embodiment, a black sealing strip is used as the sealing element 4. It is understood that sealing rings, sealing gaskets, and other commonly used sealing elements 4 that can seal gaps can also be used. The sealing element 4 can also be set on the front cover 2 at the position corresponding to the abutment surface 12. The sealing element 4 seals the gap between the door frame 11 and the front cover 2, reducing the entry of dust or moisture from the environment into the housing 1 through the gap, and preventing it from adversely affecting the electrical components and wires inside the housing 1.
[0051] In this embodiment, as shown in Figure 3, the mounting base plate 7 has symmetrical connecting brackets 8 on both sides of the side near the wire storage cavity 14. The mounting base plate 7 is connected to the housing 1 through the connecting brackets 8. This split structure, where the mounting base plate 7 and the housing 1 are connected by the connecting brackets 8, allows for independent manufacturing of each component during production and assembly, reducing overall manufacturing difficulty. The connecting brackets 8 effectively reduce the impact force transmitted to the electrical components, protecting them from excessive external force damage. Furthermore, this connection method allows for flexible adjustment of the size of the electrical component housing 13 and the wire storage cavity 14 by changing the size of the connecting brackets 8, helping to fully utilize the internal space of the electrical equipment. For example, if a larger electrical component is selected, the electrical component housing 13 can be appropriately enlarged.
[0052] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An electrical box, characterized in that, The box includes a front-opening housing (1) and a front cover (2) that closes to the opening of the housing (1). The housing (1) is connected to a mounting base plate (7) to divide the housing (1) from front to back into an electrical component placement cavity (13) and a wire storage cavity (14). The mounting base plate (7) facing the electrical component placement cavity (13) is detachably connected to a switch element (6) and a switch protective cover (5). The switch element (6) is located inside the switch protective cover (5). The mounting base plate (7) has a wire passage opening (71). The wire connected to the switch element (6) enters the wire storage cavity (14) through the wire passage opening (71).
2. An electrical box according to claim 1, characterized in that, The switch protective cover (5) has a connecting part (51) on its outer side wall. The connecting part (51) is provided with a fixing pin (9) and a first through-hole (54) for the fixing pin (9) to pass through. The mounting base plate (7) is provided with a second through-hole (72) for the fixing pin (9) to pass through. The fixing pin (9) is inserted into the first through-hole (54) and the second through-hole (72) to realize the connection between the switch protective cover (5) and the mounting base plate (7).
3. An electrical box according to claim 2, characterized in that, The insertion end of the fixing pin (9) is provided with an abutment part (93). When the fixing pin (9) is inserted into the second port (72), the fixing pin (9) is rotated so that the front end of the abutment part (93) abuts against the surface of the mounting base plate (7) near the wire storage cavity (14) to prevent the fixing pin (9) from dislodging from the second port (72).
4. An electrical box according to claim 3, characterized in that, The width of the abutting portion (93) gradually narrows from front to back.
5. An electrical box according to claim 3, characterized in that, The fixing pin (9) has a slot (91) in the shape of a line, cross, or star shape at the end away from the mounting base plate (7) to cooperate with external tools to rotate the fixing pin (9).
6. An electrical box according to claim 2, characterized in that, The fixing pin (9) is provided with a limiting sleeve (92). During the process of the fixing pin (9) being inserted into the connecting part (51), the limiting sleeve (92) abuts against the first opening (54) to restrict the fixing pin (9) from being inserted further.
7. An electrical box according to claim 2, characterized in that, The connecting part (51) has a guide groove (53) with its opening facing forward at one end away from the mounting base plate (7). The first through-hole (54) is located at the bottom of the guide groove (53). When the fixing pin (9) is inserted into the connecting part (51), the guide groove (53) guides the fixing pin (9).
8. An electrical box according to claim 7, characterized in that, The guide groove (53) is set with an opening on the side away from the switch protective cover (5).
9. An electrical box according to any one of claims 1 to 8, characterized in that, The mounting base plate (7) is connected to a meter (10) on the side facing the electrical component mounting cavity (13). The meter (10) is located outside the switch protective cover (5). The front cover (2) includes a protrusion (21) with a viewing window (3) on it. The viewing window (3) corresponds to the reading area of the meter (10).
10. An electrical box according to any one of claims 1 to 8, characterized in that, The box (1) is provided with a door frame (11), and the door frame (11) is provided with an abutment surface (12). The front cover (2) abuts against the abutment surface (12) to cover the opening of the box (1). The abutment surface (12) is provided with a sealing element (4) to seal the gap between the door frame (11) and the front cover (2).