Wire inlet valve assembly for electrical cabinet and electrical cabinet

Abstract

The embodiment of the utility model provides a wire inlet valve assembly for an electrical cabinet and the electrical cabinet. The inlet wire valve assembly comprises a shell, a plurality of first plug ports, a plurality of hinge holes, a first stroke hole and a second stroke hole, wherein the first stroke hole and the second stroke hole are formed in the extending direction of the shell; the valve is movably coupled in the shell and comprises a plurality of second plugging ports; the first bolt is coupled to the valve and is arranged in the first stroke hole; the connecting rod assembly comprises a hinged end and a sliding end, the hinged end is coupled in the hinged hole, and the sliding end is slidably coupled in the second stroke hole; the first elastic piece is coupled between the sliding end and the first bolt and is arranged to be stretched to accumulate force so as to drive the valve to move from the shielding position to the opening position through the first bolt when the sliding end slides in the direction away from the hinge hole, and in the opening position, the multiple first insertion openings are aligned with the multiple second insertion openings correspondingly; and a plurality of conductors can be inserted. Therefore, the reliability and the operation convenience can be improved.

Description

Technical Field

[0001] The exemplary embodiments disclosed herein generally relate to the field of electrical equipment, and particularly to an inlet valve assembly for an electrical cabinet and the electrical cabinet itself. Background Technology

[0002] Switchgear, as power distribution and control equipment in power systems, is widely used in high and low voltage power grids and industrial automation. Existing switchgear drawers are typically mounted on switchgear supports using guide rails or sliding mechanisms, allowing them to switch between engaged and disengaged states to achieve electrical connection or disconnection. When the drawer is pushed into the engaged state, the corresponding interface inside the switchgear opens for conductor insertion, establishing an electrical connection; conversely, when the drawer is removed, the connection automatically disconnects, and the corresponding interface closes, ensuring the safety of maintenance personnel. Utility Model Content

[0003] In a first aspect of this disclosure, an inlet valve assembly for an electrical cabinet is provided. The inlet valve assembly includes: a housing including a plurality of first insertion ports, a hinge hole, and a first travel hole and a second travel hole arranged along an extension direction of the housing, wherein the first travel hole is arranged between the hinge hole and the second travel hole in the extension direction; a valve movably coupled within the housing and including a plurality of second insertion ports; a first pin coupled to the valve and arranged within the first travel hole for movement along the extension direction within the first travel hole; a linkage assembly including a hinged end and a sliding end, the hinged end being rotatably coupled in the hinge hole about its own axis, and the sliding end being slidably coupled in the second travel hole; and a first elastic element coupled between the sliding end and the first pin and arranged to be stretched and stored during sliding of the sliding end away from the hinge hole to move the valve from a covered position to an open position via the first pin, in which the plurality of first insertion ports are respectively aligned with the plurality of second insertion ports for insertion of a plurality of conductors.

[0004] In the embodiments according to this disclosure, the first and second stroke holes arranged on the housing work in coordination with the hinged and sliding ends of the linkage assembly, combined with the energy storage and reset function of the first elastic element, to achieve precise control of the door from the covered position to the open position. This not only ensures the reliability of the conductor connection and operational safety, but also significantly reduces space occupation through a compact structural design, while simplifying the manufacturing and assembly process and reducing production costs, thereby comprehensively improving the safety, practicality, and economy of the electrical cabinet. Other benefits will be described below in conjunction with corresponding embodiments.

[0005] In some embodiments, the inlet valve assembly further includes: a second elastic member coupled between the first pin and the housing, and adapted to be stretched and stored to move the valve from the shielded position to the open position by the first pin, so as to restore the valve from the open position to the shielded position when the external force is removed by the linkage assembly, thereby moving the valve from the open position to the shielded position via the first pin.

[0006] In some embodiments, the linkage assembly includes: a first rod including a hinged end and a first mating end; and a second rod including a sliding end and a second mating end, the second mating end of the second rod being rotatably coupled to the first mating end of the first rod.

[0007] In some embodiments, the second rod includes a coupling hole disposed at the sliding end, and the inlet valve assembly further includes a second pin disposed through the coupling hole within a second travel hole, wherein the length of the second travel hole is greater than the length of the first travel hole.

[0008] In some embodiments, the second rod includes a connecting portion disposed adjacent to the coupling hole, adapted for coupling a first elastic element between the connecting portion and the first pin.

[0009] In some embodiments, the housing further includes: a fixing hole disposed adjacent to the hinge hole; the inlet valve assembly further includes: a third pin coupled to the fixing hole, wherein a second elastic element is coupled between the first pin and the third pin.

[0010] In some embodiments, the housing further includes: a receiving cavity adapted to receive a valve; and a mounting groove disposed on one side of the receiving cavity in a width direction perpendicular to the extending direction, adapted to partially receive a linkage assembly.

[0011] In some embodiments, a plurality of first insertion ports are arranged on a mounting wall on one side of the receiving cavity, the mounting wall being parallel to the extension direction and the width direction, and the valve includes a shielding wall parallel to the mounting wall and a pair of support walls perpendicular to the shielding wall, wherein a plurality of second insertion ports are arranged on the shielding wall.

[0012] In some embodiments, the valve further includes a locking portion disposed on a support wall adjacent to the mounting groove in one of a pair of support walls and adapted for locking by a first pin.

[0013] In some embodiments, the valve further includes a clearance portion disposed on a support wall adjacent to the mounting groove in one of a pair of support walls at a position corresponding to the second travel hole.

[0014] In a second aspect of this disclosure, an electrical cabinet is provided. The electrical cabinet includes: a support; a drawer coupled to the support and adapted to switch between an engaged state and an disengaged state, the drawer including a plurality of conductors; and an inlet valve assembly according to the first aspect described above, coupled to the support and arranged in a position corresponding to the drawer, adapted to switch the drawer to an engaged state, wherein the drawer actuates a linkage assembly of the inlet valve assembly to open the valve of the inlet valve assembly to allow the plurality of conductors to be inserted into the inlet valve assembly.

[0015] It should be understood that the content described in this content section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0017] Figure 1 A schematic diagram of the structure of an electrical cabinet according to some embodiments of the present disclosure is shown;

[0018] Figure 2 A schematic diagram of a door in a shielded position according to some embodiments of the present disclosure is shown;

[0019] Figure 3 A cross-sectional view of a door in a shielded position according to some embodiments of the present disclosure is shown;

[0020] Figure 4 An exploded view of an inlet valve assembly according to some embodiments of the present disclosure is shown;

[0021] Figure 5 A schematic diagram of a door in the open position according to some embodiments of the present disclosure is shown; and

[0022] Figure 6 A schematic diagram of the linkage assembly of a drawer in an engaged state is shown according to some embodiments of the present disclosure. Detailed Implementation

[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0024] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". Other explicit and implicit definitions may also be included below. The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0025] As mentioned earlier, existing switchgear primarily employs various mechanical structures to achieve the opening and closing functions of the drawers. For example, existing switchgear uses a linkage mechanism to open and close the corresponding interfaces inside the switchgear; simultaneously, a torsion spring achieves opening and resetting within a certain stroke, and a compression spring completes the idle operation within a second stroke. This structure is labor-intensive to assemble and has high manufacturing costs.

[0026] Existing switchgear also uses a sliding block mechanism to open and close corresponding interfaces inside the switchgear. However, this type of solution has problems such as complex structure, large number of parts, resulting in high assembly difficulty and increased cost. In addition, the sliding block mechanism has relatively high friction.

[0027] Existing switch cabinets also use a sliding block mechanism, but they employ two springs with different force values ​​to achieve a single-stroke opening and a two-stroke empty-stroke resetting. This sliding block mechanism is complex in structure and involves significant forces in both strokes, which may negatively impact the insertion and removal of drawers, reducing ease of use.

[0028] In addition, the existing switch cabinets use large-sized plastic parts, which greatly occupies internal space and reduces space utilization.

[0029] To address, or at least partially address, the aforementioned problems or other potential problems of conventional switchgear solutions, embodiments of this disclosure provide an inlet valve assembly for an electrical cabinet and an electrical cabinet solution. According to an embodiment of this disclosure, the inlet valve assembly includes a housing. The housing includes a plurality of first insertion interfaces, a hinge hole, and a first travel hole and a second travel hole arranged along the extending direction of the housing, wherein the first travel hole is arranged between the hinge hole and the second travel hole in the extending direction. Further, the inlet valve assembly also includes a valve. The valve is movably coupled within the housing and includes a plurality of second insertion interfaces.

[0030] Furthermore, the inlet valve assembly also includes a first latch. The first latch is coupled to the valve and disposed within a first travel hole to move along an extension direction within the first travel hole. Furthermore, the inlet valve assembly also includes a linkage assembly. The linkage assembly includes a hinged end and a sliding end, the hinged end being rotatably coupled in a hinge hole about its own axis, and the sliding end being slidably coupled in a second travel hole. The inlet valve assembly also includes a first elastic element. The first elastic element is coupled between the sliding end and the first latch and is arranged to be stretched and stored during sliding of the sliding end away from the hinge hole to move the valve from a blocked position to an open position via the first latch. In the open position, a plurality of first connectors are aligned with a plurality of second connectors for insertion of a plurality of conductors.

[0031] In this way, through the coordinated action of the first and second stroke holes on the housing and the hinged and sliding ends of the linkage assembly, precise control of the valve from the covered position to the open position is achieved. When the valve moves to the open position, the first and second insertion interfaces align, allowing multiple conductors to be inserted to complete the electrical connection. This not only ensures the reliability of the conductor connection but also effectively isolates live parts through the closed state of the valve in the covered position, improving safety during operation.

[0032] Secondly, the compact structure of this inlet valve assembly significantly reduces space requirements. Compared to existing electrical cabinets with numerous components and large space requirements, this inlet valve assembly features a simple and rational component layout, avoiding redundant structures and further improving the space utilization rate inside the electrical cabinet, making it suitable for space-constrained applications.

[0033] Furthermore, the inlet valve assembly simplifies the assembly process and reduces assembly time and costs through the direct coupling of the first pin to the valve and the arrangement of the first elastic element.

[0034] The following will combine Figure 1 The following describes an example structure of the electrical cabinet 100. According to an embodiment of this disclosure, the electrical cabinet 100 generally includes a bracket 110, a drawer 120, and an inlet valve assembly 130. These three components work together to achieve efficient cooperation between the drawer 120 and the inlet valve assembly 130, ensuring reliable electrical connections and ease of operation.

[0035] Specifically, the bracket 110, serving as the supporting structure for the electrical cabinet 100, can be made of metallic materials, such as steel plate or aluminum alloy, to provide suitable strength and stability. The drawer 120 is coupled to the bracket 110 and can be flexibly switched between an engaged and disengaged state via a sliding or roller mechanism. The drawer 120 is provided with multiple conductors, which can be copper busbars or other conductive elements, for transmitting power or signals. The engaged state of the drawer 120 refers to its complete insertion into the bracket 110 and connection to the internal circuitry of the electrical cabinet 100, while the disengaged state refers to the drawer 120 being pulled out for maintenance or replacement.

[0036] Furthermore, the inlet valve assembly 130 is coupled to the bracket 110 and positioned corresponding to the drawer 120 to ensure that the drawer 120 can operate in coordination with it when switching states. The inlet valve assembly 130 is a movable mechanical structure used to control the channels through which multiple conductors enter.

[0037] During operation, when drawer 120 switches from the extended state to the engaged state, the movement of drawer 120 drives the linkage assembly 133 of the inlet valve assembly 130 to actuate via mechanical contact or thrust. The movement of linkage assembly 133 further opens the valve 132 of the inlet valve assembly 130, thereby exposing the connection area inside the inlet valve assembly 130. At this time, multiple conductors on drawer 120 can be inserted into the inlet valve assembly 130 to establish an electrical connection with its terminals or busbars. When drawer 120 switches back to the extended state, linkage assembly 133 can return to its initial position via a reset mechanism (such as a spring), and valve 132 closes accordingly to protect the internal structure and prevent the entry of foreign objects.

[0038] In some embodiments, the bracket 110 may be provided with guide rails or positioning grooves to guide the sliding of the drawer 120 and ensure its alignment with the inlet door assembly 130. Furthermore, the contact portion of the drawer 120 that abuts against the linkage assembly 133 may have a raised structure.

[0039] It is understood that the linkage assembly 133 and valve 132 of the incoming line valve assembly 130 described herein are only for the purpose of clearly describing the working process of the electrical cabinet 100, and the specific structure and working process of the incoming line valve assembly 130 will be described in detail below.

[0040] The following will combine Figures 1 to 6 To describe the specific structure of the incoming line valve assembly 130. For example... Figures 1 to 6 As shown, the inlet valve assembly 130 for electrical cabinet 100 according to an embodiment of the present disclosure generally includes a housing 131, a valve 132, a first pin 134, a connecting rod assembly 133, and a first elastic member 135.

[0041] Specifically, the housing 131, as a supporting structure, is provided with multiple first insertion interfaces 1311, hinge holes 1312, and first travel holes 1313 and second travel holes 1314 arranged sequentially along the extending direction A of the housing 131. The first travel hole 1313 is located between the hinge hole 1312 and the second travel hole 1314, providing guiding space for the movement of subsequent components. The valve 132 is movably coupled within the housing 131 and is provided with multiple second insertion interfaces 1321 for cooperating with the first insertion interfaces 1311 to realize the insertion connection of multiple conductors.

[0042] The first pin 134 is fixedly coupled to the valve 132 and passes through the first travel hole 1313. It can move within the first travel hole 1313 along the extending direction A of the housing 131, thereby driving the valve 132 to complete the position switching. The linkage assembly 133 includes a hinge end 1333 and a sliding end 1334. The hinge end 1333 is rotatably connected to the housing 131 through the hinge hole 1312 and can rotate about its own axis. The sliding end 1334 is slidably coupled within the second travel hole 1314 and slides along the second travel hole 1314 as the drawer 120 is inserted or pulled out. The first elastic element 135 is coupled between the sliding end 1334 and the first pin 134, serving to store force and reset. In some embodiments, the first elastic element 135 can be a tension spring.

[0043] During operation, in the initial state, the valve 132 is in the shielded position, and multiple first insertion ports 1311 and second insertion ports 1321 are misaligned, preventing the insertion of multiple conductors and ensuring electrical isolation and safety. (See [link to relevant documentation]). Figure 2 and Figure 3 When drawer 120 is inserted, the sliding end 1334 of the linkage assembly 133 is subjected to force and slides away from the hinge hole 1312 along the second stroke hole 1314. At this time, the first elastic element 135 is stretched and stores elastic potential energy. Through the transmission action of the first pin 134, the movement of the door 132 is synchronized with the sliding end 1334. The first pin 134 moves along the first stroke hole 1313, driving the door 132 to gradually move from the covered position to the open position. In the open position, the multiple second insertion interfaces 1321 on the door 132 are precisely aligned with the multiple first insertion interfaces 1311 on the housing 131, thereby allowing multiple conductors (e.g., copper busbars) to be inserted to achieve electrical connection. See [link to relevant documentation]. Figure 5 During reverse operation, as drawer 120 is pulled out, sliding end 1334 slides in the opposite direction along second stroke hole 1314, first elastic element 135 releases stored elastic potential energy, and pushes door 132 from open position to shielded position via first latch 134, restoring the initial protective state.

[0044] like Figure 3 and Figure 4As shown, in some embodiments, the inlet valve assembly 130 further includes a second elastic element 136. Specifically, the second elastic element 136, such as a tension spring or a similar elastic element, is coupled between the first pin 134 and the housing 131, with its two ends respectively fixed to preset connection points on the first pin 134 and the housing 131. The second elastic element 136 complements the first elastic element 135, jointly ensuring the stability and reliability of the valve 132 under different operating conditions.

[0045] During operation, when drawer 120 is inserted and the sliding end 1334 is driven to slide along the second travel hole 1314 via linkage assembly 133, the first latch 134 moves within the first travel hole 1313 along the extending direction A of housing 131, causing the door 132 to gradually move from the covered position to the open position. During this period, the second elastic element 136 is stretched and accumulates elastic potential energy, while the multiple first insertion interfaces 1311 align with the second insertion interfaces 1321, allowing multiple conductors to be inserted to complete the electrical connection.

[0046] When drawer 120 is pulled out and the external force is removed from linkage assembly 133, the second elastic element 136 releases its stored elastic potential energy, generating a restoring force, as linkage assembly 133 no longer applies driving force. This restoring force acts on valve 132 through first pin 134, pushing valve 132 to move in the opposite direction along first travel hole 1313, smoothly returning it to the covered position from the open position. In the covered position, first connector 1311 and second connector 1321 are repositioned, cutting off multiple conductor paths and restoring the initial protective state. At the same time, the first elastic element 135 can also assist in the reset when sliding end 1334 moves in the opposite direction, thus forming a dual elastic mechanism.

[0047] In some embodiments, the linkage assembly 133 includes a first link 1331 and a second link 1332. The first link 1331 includes a hinge end 1333 and a first mating end 1335, wherein the hinge end 1333 is rotatably coupled to the housing 131 through a hinge hole 1312 on the housing 131, allowing the first link 1331 to rotate freely about the axis of the hinge end 1333, providing a pivot point for the entire linkage assembly 133. The first mating end 1335 serves as an interface for connection with the second link 1332.

[0048] The second rod 1332 includes a sliding end 1334 and a second mating end 1336. The sliding end 1334 is slidably coupled to the second stroke hole 1314 of the housing 131 and can slide along the extension direction A of the second stroke hole 1314 to respond to the insertion or extraction of the drawer 120. The second mating end 1336 is rotatably connected to the first mating end 1335 of the first rod 1331, for example, by means of a pin or hinge structure, so that a rotational fit is formed between the first rod 1331 and the second rod 1332.

[0049] During operation, when drawer 120 is inserted, it abuts against the connection between the first mating end 1335 and the second mating end 1336, causing external force to act on the sliding end 1334 of the second rod 1332. The sliding end 1334 slides away from the hinge hole 1312 along the second stroke hole 1314. The second mating end 1336 of the second rod 1332 then drives the first mating end 1335 of the first rod 1331 to move. Since the hinge end 1333 of the first rod 1331 is fixed to the hinge hole 1312, the first rod 1331 rotates around the hinge end 1333, creating a lever effect. This movement transmits the force to the first latch 134 through the first elastic element 135, thereby driving the door 132 from the covered position to the open position, aligning the first insertion interface 1311 and the second insertion interface 1321, allowing multiple conductors of drawer 120 to be inserted. During reverse operation, drawer 120 is pulled out, sliding end 1334 slides in the opposite direction along second stroke hole 1314, and the rotational engagement of first rod 1331 and second rod 1332 is adjusted in the opposite direction. Under the combined action of first elastic element 135 and second elastic element 136, after multiple conductors are moved out, door 132 returns to the shielded position.

[0050] like Figure 4 As shown, in some embodiments, a coupling hole 1337 is provided on the sliding end 1334 of the second rod 1332. This coupling hole 1337 extends along the thickness direction of the second rod 1332. The inlet valve assembly 130 includes a second pin 135, which passes through the coupling hole 1337 on the second rod 1332 and is arranged within the second travel hole 1314 of the housing 131. The second pin 135 slidably engages with the second travel hole 1314, allowing the sliding end 1334 of the second rod 1332 to move within the second travel hole 1314 along the extending direction A of the housing 131. Furthermore, the length of the second travel hole 1314 is greater than the length of the first travel hole 1313 to ensure that the sliding stroke of the second rod 1332 can fully cover the entire movement requirement of the valve 132 from the covered position to the open position, while providing greater adjustment space for the movement of the linkage assembly 133.

[0051] During operation, when drawer 120 is inserted, external force pushes the second rod 1332, causing the second pin 135 to slide along the second travel hole 1314 away from the hinge hole 1312, thus moving the second rod 1332 as a whole. The second mating end 1336 of the second rod 1332, through rotational connection with the first mating end 1335 of the first rod 1331, converts the sliding motion into the rotational motion of the first rod 1331, which in turn drives the door 132 from the covered position to the open position via the first elastic element 135 and the first pin 134. At this time, the second travel hole 1314 provides sufficient sliding range for the second pin 135, ensuring that the door 132 can be fully opened, aligning the first insertion interface 1311 with the second insertion interface 1321 for multiple conductors to be inserted. When drawer 120 is pulled out, the second pin 135 slides in the opposite direction along the second travel hole 1314, and under the restoring force of the first elastic element 135 and the second elastic element 136, the door 132 smoothly returns to the covered position.

[0052] It should be noted that when the first insertion interface 1311 and the second insertion interface 1321 are aligned, the first latch 134 stops moving, while the second latch 135 can continue to slide an additional distance within the second travel hole 1314, ensuring that the linkage assembly 133 is fully extended and preventing the linkage assembly 133 from affecting the insertion of the drawer 120. Simultaneously, when the external force on the linkage assembly 133 is removed, the second latch 135 slides an additional distance in the opposite direction to ensure that after the multiple conductors have moved out of the housing 131, the door 132 switches from the open position to the closed position. In other words, [the following text is incomplete and requires further context: "will..."] Figure 6 The status of the incoming line valve assembly 130 is via Figure 5 The state of the incoming line valve assembly 130 in the middle is switched to Figure 2 The status of the incoming line valve assembly 130.

[0053] like Figure 5 As shown, in some embodiments, the second rod 1332 has a connecting portion 1338 located near the coupling hole 1337. This connecting portion 1338 can be a lug, hook, or similar structure, for secure coupling to one end of the first elastic member 135. The first elastic member 135, such as a tension spring, has its other end coupled to the first pin 134, forming an elastic transmission chain from the connecting portion 1338 of the second rod 1332 to the first pin 134. Through the provision of the connecting portion 1338, the first elastic member 135 can be stretched or released during the sliding action of the second rod 1332, ensuring smooth movement and reset of the valve 132 during opening and closing.

[0054] In some embodiments, the housing 131 is provided with a fixing hole 1315, which is arranged adjacent to the hinge hole 1312, for example by drilling or pre-forming it on the surface of the housing 131. The inlet valve assembly 130 also includes a third pin 138, which is coupled to the fixing hole 1315. A second elastic element 136, such as a tension spring, is coupled at one end to the first pin 134 and at the other end to the third pin 138, forming an elastic reset path from the first pin 134 to the third pin 138. Through the arrangement of the fixing hole 1315 and the third pin 138, the second elastic element 136 can be effectively stretched and restored during the movement of the valve 132, ensuring the smooth execution of the reset action.

[0055] During operation, when drawer 120 is inserted, the first latch 134, driven by linkage assembly 133, moves along the first travel hole 1313, causing the door 132 to switch from the covered position to the open position. During this period, the second elastic element 136 is stretched due to the displacement of the first latch 134, and the third latch 138 remains fixed in the fixing hole 1315 of the housing 131, allowing the second elastic element 136 to accumulate elastic potential energy. When the door 132 reaches the open position, the first insertion interface 1311 aligns with the second insertion interface 1321, allowing multiple conductors to be inserted to complete the electrical connection. After drawer 120 is pulled out and the external force is removed from linkage assembly 133, the second elastic element 136 releases the stored elastic potential energy, generating a restoring force. Since the third pin 138 is fixed to the housing 131, the restoring force acts on the valve 132 through the first pin 134, pushing the valve 132 to move in the opposite direction along the first travel hole 1313, resetting from the open position to the shielded position, restoring the initial protective state, which cooperates with the reset function of the first elastic element 135.

[0056] Continuing with the description of housing 131 above, in some embodiments, housing 131 includes a receiving cavity and a mounting groove 1310. The receiving cavity is formed inside housing 131 as a closed or semi-closed space adapted to receive a valve 132 and restrict its range of motion, allowing the valve 132 to move smoothly between a covered position and an open position along the extending direction A of housing 131. The mounting groove 1310 is arranged in a width direction B perpendicular to the extending direction A of housing 131, located on one side of the receiving cavity, and its shape and size are designed to partially receive the linkage assembly 133, thereby providing space for the rotation and sliding of the linkage assembly 133.

[0057] During operation, when drawer 120 is inserted, the first rod 1331 of the linkage assembly 133 rotates around the hinge hole 1312, and the second rod 1332 slides along the second travel hole 1314 via the second pin 135. These movements occur within the mounting groove 1310, which provides lateral support and guidance for the linkage assembly 133, preventing it from deviating from its predetermined trajectory. Simultaneously, the first pin 134, driven by the linkage assembly 133, moves within the first travel hole 1313, causing the door 132 in the receiving cavity to switch from a covered position to an open position, aligning the first insertion interface 1311 with the second insertion interface 1321 for multiple conductors to be inserted. When drawer 120 is pulled out, the linkage assembly 133 moves in the opposite direction within the mounting groove 1310, the first elastic element 135 and the second elastic element 136 release their restoring force, and the door 132 returns to the covered position within the receiving cavity, restoring the protective state.

[0058] like Figure 5 As shown, in some embodiments, the receiving cavity of the housing 131 is provided with a mounting wall 1301. This mounting wall 1301 is parallel to the extension direction A and the width direction B of the housing 131, forming a support surface. A plurality of first connectors 1311 are arranged regularly on the mounting wall 1301, for example, distributed along the extension direction A, for mating with a plurality of conductors. A valve 132 is movably coupled within the receiving cavity. The valve 132 includes a shielding wall 1302 and a pair of support walls 1303, wherein the shielding wall 1302 is parallel to the mounting wall 1301, and a plurality of second connectors 1321 are arranged on the shielding wall 1302, corresponding to the arrangement of the first connectors 1311. The pair of support walls 1303 are perpendicular to the shielding wall 1302, located on both sides of the shielding wall 1302, extending into the interior of the receiving cavity, and cooperating with the structure of the housing 131 to support the movement of the valve 132 and limit its offset.

[0059] During operation, when the valve 132 is in the shielded position, the second insertion interface 1321 on the shielding wall 1302 is misaligned with the first insertion interface 1311 on the mounting wall 1301. The shielding wall 1302 covers the first insertion interface 1311, preventing multiple conductors from being inserted and ensuring electrical isolation and safety. When the drawer 120 is inserted, the first pin 134 is driven by the linkage assembly 133 to move along the first stroke hole 1313, causing the valve 132 to slide within the receiving cavity until it reaches the open position. At this time, the multiple second insertion interfaces 1321 on the shielding wall 1302 are precisely aligned with the multiple first insertion interfaces 1311 on the mounting wall 1301, forming a through hole that allows multiple conductors to pass through and complete the electrical connection. The support wall 1303 slides against the inner wall of the receiving cavity (for example, the protrusion 1324 on the support wall 1303 engages with the sliding groove on the inner wall of the receiving cavity), ensuring that the valve 132 moves smoothly and without deviation along the extension direction A. When drawer 120 is pulled out, the door 132 moves in the opposite direction under the restoring force of the elastic element, and the blocking wall 1302 returns to the blocking state.

[0060] like Figure 5 As shown, in some embodiments, the valve 132 further includes a latching portion 1322. This latching portion 1322 is disposed on the support wall 1303 near the mounting groove 1310. The latching portion 1322 can be a groove, a slot, or a similar structure, adapted to engage with the first pin 134, allowing the first pin 134 to be fixed to the valve 132. The latching portion 1322 also transmits the driving force of the linkage assembly 133 to the valve 132, enabling precise movement of the blocking wall 1302.

[0061] During operation, when drawer 120 is inserted, linkage assembly 133 drives first pin 134 to move along first travel hole 1313 via first elastic element 135. First pin 134 is engaged in locking part 1322, directly applying force to support wall 1303 adjacent to mounting groove 1310, causing the entire door 132 to slide within the receiving cavity. The blocking wall 1302 then moves from the blocked position to the open position, aligning second insertion interface 1321 with first insertion interface 1311 on mounting wall 1301, allowing multiple conductors to be inserted. When drawer 120 is pulled out, first pin 134 moves in the opposite direction under the restoring force of first elastic element 135 and second elastic element 136, pushing door 132 back to its original position via locking part 1322, and blocking wall 1302 returns to its blocked state.

[0062] In some embodiments, the valve 132 further includes a clearance portion 1323. This clearance portion 1323 is disposed on the support wall 1303 near the mounting groove 1310, and its position corresponds to the second travel hole 1314 on the housing 131. The clearance portion 1323 may be in the form of a notch, recess, or perforation, etc., to provide sufficient movement space for the second pin 135 within the second travel hole 1314, preventing the support wall 1303 from colliding with or interfering with the second pin 135 during the movement of the valve 132.

[0063] During operation, the clearance portion 1323 ensures that the second pin 135 can move freely within the second travel hole 1314 without being obstructed by the support wall 1303. The valve 132 switches from the covered position to the open position, aligning the second insertion interface 1321 with the first insertion interface 1311 to allow multiple conductors to be inserted. When the drawer 120 is pulled out, the second pin 135 slides in the opposite direction along the second travel hole 1314. The clearance portion 1323 also provides space for the movement of the second pin 135. Under the restoring force of the first elastic member 135 and the second elastic member 136, the valve 132 returns to the covered position.

[0064] Various implementations of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed implementations. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The terminology used herein is chosen to best explain the principles, practical applications, or improvements to technology in the market, or to enable others skilled in the art to understand the various implementations disclosed herein.

Claims

1. A line inlet valve assembly for an electrical cabinet, characterized by Comprising: a housing (131) comprising a plurality of first plug interfaces (1311), a hinge hole (1312), and a first stroke hole (1313) and a second stroke hole (1314) arranged along an extension direction (A) of the housing (131), wherein the first stroke hole (1313) is arranged between the hinge hole (1312) and the second stroke hole (1314) in the extension direction (A); a shutter (132) movably coupled within the housing (131) and comprising a plurality of second plug interfaces (1321); a first latch (134) coupled on the shutter (132) and arranged within the first stroke hole (1313) to move within the first stroke hole (1313) along the extension direction (A); a linkage assembly (133) comprising a hinge end (1333) rotatably coupled in the hinge hole (1312) about its own axis, and a sliding end (1334) slidably coupled within the second stroke hole (1314); and a first elastic member (135) coupled between the sliding end (1334) and the first latch (134) and arranged to be stretched to drive the shutter (132) from a shielding position to an open position via the first latch (134) during a sliding of the sliding end (1334) in a direction away from the hinge hole (1312), in which the plurality of first plug interfaces (1311) are respectively aligned with the plurality of second plug interfaces (1321) for a plurality of conductors to be inserted.

2. The wire entry valve assembly of claim 1, wherein, Further comprising: a second elastic member (136) coupled between the first latch (134) and the housing (131) and adapted to be stretched to store energy when the first latch (134) drives the shutter (132) from the shielding position to the open position, to restore to drive the shutter (132) from the open position to the shielding position via the first latch (134) when the linkage assembly (133) is free from external force.

3. The inlet valve assembly of claim 1, wherein, The linkage assembly (133) comprises: a first rod (1331) comprising the hinge end (1333) and a first mating end (1335); and a second rod (1332) comprising the sliding end (1334) and a second mating end (1336), the second mating end (1336) of the second rod (1332) being rotatably coupled to the first mating end (1335) of the first rod (1331).

4. The inlet valve assembly of claim 3, wherein The second rod (1332) comprises: a coupling hole (1337) arranged at the sliding end (1334), and The wire inlet shutter assembly further comprises: a second latch (137) arranged within the second stroke hole (1314) through the coupling hole (1337), and a length of the second stroke hole (1314) is greater than a length of the first stroke hole (1313).

5. The inlet valve assembly of claim 4, wherein, The second rod (1332) comprises: A connecting portion (1338) disposed adjacent to the coupling hole (1337) is adapted for the first elastic member (135) to be coupled between the connecting portion (1338) and the first plug (134).

6. The inlet valve assembly of claim 2, wherein, The shell (131) further comprises: A fixing hole (1315) disposed adjacent to the hinged hole (1312); The inlet valve (132) assembly further comprises: A third plug (138) coupled into the fixing hole (1315), wherein the second elastic member (136) is coupled between the first plug (134) and the third plug (138).

7. The incoming wire shutter assembly according to any one of claims 1-6, characterized in that, The shell (131) further comprises: An accommodating cavity adapted for accommodating the valve (132); and A mounting slot (1310) disposed on one side of the accommodating cavity along a width direction (B) perpendicular to the extension direction (A) and adapted for partially accommodating the linkage assembly (133).

8. The wire inlet valve assembly of claim 7, wherein, A plurality of first plug-in interfaces (1311) are disposed on a mounting wall (1301) on one side of the accommodating cavity, the mounting wall (1301) being parallel to the extension direction (A) and the width direction (B), and The valve (132) comprises a shielding wall (1302) parallel to the mounting wall (1301) and a pair of support walls (1303) perpendicular to the shielding wall (1302), wherein the plurality of second plug-in interfaces (1321) are disposed on the shielding wall (1302).

9. The wire entry valve assembly of claim 8, wherein, The valve (132) further comprises: A clamping portion (1322) disposed on a support wall (1303) adjacent to the mounting slot (1310) in the pair of support walls (1303) and adapted for clamping the first plug (134).

10. The wire entry valve assembly of claim 8, wherein, The valve (132) further comprises: An avoiding portion (1323) disposed on a support wall (1303) adjacent to the mounting slot (1310) in the pair of support walls (1303) corresponding to the second stroke hole (1314).

11. An electrical cabinet, characterized in that Comprise: A bracket (110); A drawer (120) coupled to the bracket (110) and adapted to switch between an engaged state and a removed state, and the drawer (120) comprises a plurality of conductors; And The inlet valve assembly (130) according to any one of claims 1-10 is coupled to the bracket (110) and disposed at a position corresponding to the drawer (120), adapted for the drawer (120) to switch to the engaged state, the drawer (120) driving the linkage assembly (133) of the inlet valve assembly to act, to open the valve (132) of the inlet valve assembly (130), to allow the plurality of conductors to be inserted into the inlet valve assembly (130).

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