Pushable self-locking switch module unit and hot plug system

Abstract

The utility model discloses a push type self-locking switch module unit and a hot plug system. A push type self-locking switch module unit comprises a plug-in base, a plug-in box and a switch module are installed above the plug-in base, the plug-in base is further provided with a rotatable push gear, and the axis of the push gear is arranged in the left-right direction; the propelling gear is arranged on the inserting base in the mode of moving in the axial direction, and an elastic self-locking set is further arranged between the inserting base and the propelling gear. The hot plug system comprises a mounting plate, the mounting plate is provided with a plurality of gear guide strips which are arranged at intervals along the left-right direction, each gear guide strip comprises a plurality of gear guide grooves which are arranged at intervals along the front-back direction, and the mounting plate is provided with a bus system and a plurality of push type switch module units. The plug-and-play function can be realized, the structure is simpler, the cost is lower, and the wide popularization can be realized.

Description

Technical Field

[0001] The utility model relates to a pushable self-locking switch module unit and a hot plug system, belonging to the technical field of low-voltage power distribution systems. Background Art

[0002] A hot-swappable electrical cabinet is an electrical device that allows component replacement without powering off. This design allows for quick replacement of faulty modules while the system is running without shutting down the entire system, improving system reliability and redundancy.

[0003] The Chinese invention patent with publication number: CN108281849B discloses a plug-and-play hot-swap system, which can realize the reciprocating movement of the switch element and the adapter on the base, and the hot-swap system can reciprocate to realize its "plug-and-play". However, the system can realize many functions, and for some simple use scenarios, the cost is relatively high. Utility Model Content

[0004] The utility model aims to provide a pushable self-locking switch module unit and a hot-swap system, which can realize plug-and-play, have a simpler structure, lower cost, and can be widely promoted.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A pushable self-locking switch module unit comprises a plug-in base, a plug-in box and a switch module are installed above the plug-in base, a rotatable propulsion gear is also provided on the plug-in base, and the axis of the propulsion gear is arranged in the left and right direction; the propulsion gear is axially movable on the plug-in base, and an elastic self-locking group is also provided between the plug-in base and the propulsion gear.

[0007] Optionally, a locking hole is provided on the side of the propulsion gear, and a locking protrusion is provided on the plug-in base; or, a locking protrusion is provided on the side of the propulsion gear, and a locking hole is provided on the plug-in base.

[0008] Optionally, the locking hole and / or the locking protrusion is provided with a chamfer; or, the locking hole and / or the locking protrusion is a curved surface.

[0009] Optionally, a plurality of locking holes or locking protrusions are evenly arranged on the side surface of the propulsion gear along the circumferential direction, and the number of the locking holes or locking protrusions is equal to the number of teeth of the gear.

[0010] Optionally, a gear groove is provided at the rear of the plug-in base, and ears are provided on both sides of the gear groove, and the propulsion gear is connected to the ears via a rotating shaft.

[0011] A hot-swap system includes a mounting plate, on which are provided a plurality of gear guide bars spaced apart along the left-right direction, each of the gear guide bars including a plurality of gear guide grooves spaced apart along the front-back direction, and a busbar system and a plurality of push-type switch module units as described above.

[0012] Optionally, the mounting plate is provided with a plurality of positioning slide groove groups, the positioning slide groove groups include at least one positioning slide groove respectively arranged on the left and right sides, the positioning slide groove includes a mounting portion on the rear side and a limiting portion on the front side; the lower end portion of the plug-in base is provided with an L-shaped positioning buckle, the positioning buckle can be moved along the positioning slide rail and is arranged in the positioning slot, and the bottom width of the positioning buckle is smaller than the mounting portion and larger than the limiting portion.

[0013] Optionally, the busbar system is provided with a plurality of inner grid plates arranged in sequence along the left-right direction, and the number and positions of the gear guide bars and the positioning slide groove groups correspond to the inner grid plates.

[0014] Optionally, the plug-in base and the mounting plate are detachably connected via locking bolts.

[0015] Optionally, the lower end portion of the propulsion gear extends downwardly out of the lower end surface of the plug-in base.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The pushable self-locking switch module unit and hot-swap system provided by the utility model help to ensure the correct alignment when inserting and removing the module, while providing the necessary push-pull force to keep the connection firm.

[0018] 2. The utility model provides a pushable self-locking switch module unit and hot-swap system, in which the gear is elastically fixed to the plug-in base, and the rotation position of the gear is fixed, thereby preventing the gear from rotating unnecessarily, which is convenient for installation.

[0019] 3. The hot-swap system provided by the utility model can move the push-type self-locking switch module unit in the left and right directions as needed to plug into the inner grille plates at different positions, and the mounting plate can also adapt to push-type self-locking switch module units of different specifications, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of a pushable self-locking switch module unit.

[0021] Figure 2 It is a structural schematic diagram of a hot-swap system.

[0022] Figure 3 It is a structural diagram of the propulsion gear.

[0023] Figure 4 It is a schematic diagram of the structure of the lug.

[0024] Markings in the figure: 1-plug-in base, 11-holding hole, 12-gear groove, 13-support ear, 14-positioning buckle, 15-locking protrusion, 2-plug-in box, 3-switch module, 4-advance gear, 41-rotating shaft, 42-locking hole, 5-mounting plate, 51-gear guide groove, 52-positioning slide groove, 6-busbar system, 61-inner grille plate, 7-operating lever. DETAILED DESCRIPTION

[0025] The utility model is described in detail below in conjunction with the accompanying drawings.

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] A pushable self-locking switch module unit, such as Figure 1 , 2 As shown, it includes a plug-in base 1, a plug-in box 2 and a switch module 3 are installed on the top of the plug-in base 1, and a rotatable propulsion gear 4 is also provided on the plug-in base 1, and the axis of the propulsion gear 4 is arranged along the left and right direction; the propulsion gear 4 is axially movable on the plug-in base 1, and an elastic self-locking group is also provided between the plug-in base 1 and the propulsion gear 4.

[0028] Specifically, the plug-in base 1 integrates the components of this unit into one, which is convenient for installation and disassembly. The plug-in box 2 realizes the electrical connection between the switch module 3 and the busbar system 6, and can connect the switch module 3 and the busbar with different electrical interfaces, so that incompatible components can be used together, and the conversion of voltage and current can be realized at the same time. When the propulsion gear 4 rotates, it is pushed by the reaction force of the gear and the gear guide groove 51 on the mounting plate 5, so that the plug-in base 1 moves forward and backward, and is inserted and pulled out of the busbar system 6. The axis of the propulsion gear 4 is arranged in the left and right direction, so as to ensure that the propulsion direction is the front and back direction, that is, the plug-in and pull-out direction, which helps to improve the reliability of the entire switch module 3 unit. Optionally, the switch module 3 is a single-pole or two-pole, three-pole, four-pole or other multi-pole switch, and the plug-in box 2 is matched with the switch module 3 accordingly.

[0029] In addition, when the propulsion gear 4 is not fixed, when the pushable self-locking switch module unit is placed in the positioning slot, the propulsion gear 4 rotates disorderly, and it is difficult to put it into the gear guide slot 51 at one time. It is often necessary to turn the propulsion gear 4 by hand to put it in, but it is very strenuous for the staff to lift the module unit with one hand. In this solution, an elastic self-locking group is used to first perform circumferential self-locking between the plug-in base and the propulsion gear 4, and then the propulsion gear 4 is placed on the propulsion gear 4 accordingly to prevent the propulsion gear 4 from rotating disorderly, facilitate installation, and greatly improve installation efficiency. When rotating, due to its elastic structure, the driving force is greater than the self-locking force, which drives the elastic component to deform, the self-locking temporarily fails, and the propulsion gear 4 completes the rotation.

[0030] As another specific implementation, Figure 3 , 4 As shown, the side of the propulsion gear 4 is provided with a locking hole 42, and the plug-in base 1 is provided with a locking protrusion 15; or, the side of the propulsion gear 4 is provided with a locking protrusion 15, and the plug-in base 1 is provided with a locking hole 42. The locking hole 42 and the locking protrusion 15 can prevent the propulsion gear 4 from rotating in the circumferential direction, and the structure is simple, the installation and disassembly process is convenient and fast, and the work efficiency can be improved. In this embodiment, the side of the propulsion gear 4 is provided with a locking hole 42, and the plug-in base 1 is provided with a locking protrusion 15.

[0031] As another specific embodiment, the locking hole 42 and / or the locking protrusion 15 are provided with chamfers; or, the locking hole 42 and / or the locking protrusion 15 are arcuate surfaces. The chamfers or arcuate surfaces can be used for axial guidance during circumferential rotation, so that the locking hole 42 and the locking protrusion 15 are first staggered in the left-right direction before rotation, and the shear force is prevented from causing damage to the locking protrusion 15. In this embodiment, the locking hole 42 and the locking protrusion 15 are both provided with chamfers.

[0032] As another specific embodiment, the side of the propulsion gear 4 is uniformly provided with a plurality of locking holes 42 or locking protrusions 15 along the circumferential direction, and the number of the locking holes 42 or locking protrusions 15 is equal to the number of teeth of the gear. When each tooth of the propulsion gear 4 rotates to the corresponding position, it can be locked by the cooperation of the locking hole 42 and the locking protrusion 15, which is convenient for installation and debugging. At the same time, the propulsion gear 4 can be locked in each groove of the gear guide groove 51 to prevent the push-type switch module 3 unit from moving during operation. Specifically, when the propulsion gear 4 is locked, that is, when any locking hole 42 and locking protrusion 15 are locked, the bottommost tooth of the propulsion gear 4 is vertically downward, corresponding to the state of being inserted into the gear guide groove 51. In this embodiment, the locking between different locking holes 42 and locking protrusions 15 corresponds to the locking of different teeth of the propulsion gear 4.

[0033] As another specific embodiment, a gear groove 12 is provided at the rear of the plug-in base 1, and ears 13 are provided on both sides of the gear groove 12, and the propulsion gear 4 is connected to the ears 13 through a rotating shaft 41. Specifically, the gear groove 12 can provide a rotation space for the propulsion gear 4, and the ears 13 can fix the propulsion gear 4. Further, the ears 13 are also connected to a connecting portion, which is connected to the plug-in base 1 through the connecting portion to ensure the structural stability of the ears 13. In addition, the locking hole or locking protrusion is provided on the inner side of the ears 13, corresponding to the position of the propulsion gear 4. At the same time, since the ears 13 are plate-shaped and have a certain elasticity, when the propulsion gear 4 rotates, the ears 13 can bend to a certain extent in the outward direction, and the locking protrusion 15 leaves the locking hole 42, thereby providing space for the rotation of the propulsion gear 4. When the propulsion gear 4 rotates to the corresponding position, the ears 13 reset inward, and the locking protrusion 15 is stuck in the locking hole 42 to achieve self-locking.

[0034] A hot-swap system, such as Figure 2 As shown, it includes a mounting plate 5, on which a plurality of gear guide bars are arranged at intervals along the left-right direction, each of the gear guide bars includes a plurality of gear guide grooves 51 arranged at intervals along the front-back direction, and the mounting plate 5 is provided with a busbar system 6 and a plurality of push-type switch module units as described above.

[0035] Specifically, the gear guide groove 51 is used to provide a reverse force when the propulsion gear 4 rotates, thereby pushing the propulsion gear 4 to move, and the propulsion gear 4 of each of the push-type switch module 3 units can be reciprocated through the gear guide bar to be detachably connected to the busbar system 6. Then, the busbar system 6 of the low-voltage power distribution cabinet can be directly inserted or unplugged, realizing plug-and-play.

[0036] As another specific embodiment, the mounting plate 5 is provided with at least one group of positioning slide grooves, the positioning slide groove group includes at least one positioning slide groove 52 respectively arranged on the left and right sides, the positioning slide groove 52 includes a mounting portion on the rear side and a limiting portion on the front side; the lower end of the plug-in base 1 is provided with an L-shaped positioning buckle 14, the positioning buckle 14 can be moved along the positioning slide rail and is arranged in the positioning slide groove 52, and the bottom width of the positioning buckle 14 is smaller than the mounting portion and larger than the limiting portion. Specifically, the positioning slide groove 52 realizes the functions of guiding and limiting, wherein the positioning buckle 14 is placed in the positioning slide groove 52 through the mounting portion, and is pushed forward along the positioning slide groove 52 to the limiting portion, and the limiting portion limits the positioning buckle 14 in the up and down directions.

[0037] As another specific embodiment, the busbar system is provided with a plurality of inner grid plates 61 arranged in sequence along the left and right directions, and the gear guide bar and the positioning slide groove group correspond to the number and position of the inner grid plates 61. That is, a gear guide bar and a positioning slide groove group are provided under each pole of the push-type switch module 3 unit. The push-type switch module 3 unit can be moved along the left and right directions as needed, and plugged with the inner grid plates 61 at different positions, and the mounting plate 5 can also adapt to push-type switch module 3 units of different specifications.

[0038] As another specific embodiment, the plug-in base 1 is detachably connected to the mounting plate 5 by a locking bolt. After the push-type switch module 3 unit is pushed to the designated position and plugged in, the plug-in base 1 is fixed on the mounting plate 5 to prevent the push-type switch module 3 unit from being accidentally pulled out during operation.

[0039] As another specific embodiment, the lower end of the propulsion gear 4 extends downwardly out of the lower end surface of the plug-in base 1. It can be ensured that in this embodiment, when the mounting plate 5 is a plane, the tooth tip below the propulsion gear 4 contacts the inner side surface of the gear guide groove 51 provided on the mounting plate 5. In other embodiments, if the gear guide groove 51 protrudes upwardly out of the upper plane of the mounting plate 5, the position of the propulsion gear 4 is adjusted upward accordingly.

[0040] As another specific embodiment, it also includes an operating rod 7 for driving the propulsion gear 4 to rotate. The propulsion gear 4 can be driven to rotate by the operating rod 7, and the propulsion gear 4 can be controlled to rotate with a small force through the lever principle. In addition, the operation of the operating rod 7 can isolate the dangerous area and reduce the risk of the user directly contacting the propulsion gear 4. Specifically, a push groove is provided between the teeth of the propulsion gear 4 in the radial direction, and the operating handle can be inserted into the push groove, and then contact the wall surface of the push groove to drive the propulsion gear 4 to rotate.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention is extended to any new features or any new combination disclosed in this specification, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

[0042] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

Claims

1. A pushable self-locking switch module unit, characterized in that: The invention comprises a plug-in base (1), a plug-in box (2) and a switch module (3) are installed on the top of the plug-in base (1), a rotatable propulsion gear (4) is also provided on the plug-in base (1), and the axis of the propulsion gear (4) is arranged in the left-right direction; the propulsion gear (4) is arranged on the plug-in base (1) so as to be movable in the axial direction, and an elastic self-locking group is also provided between the plug-in base (1) and the propulsion gear (4).

2. The pushable self-locking switch module unit according to claim 1, characterized in that: A locking hole (42) is provided on the side of the propulsion gear (4), and a locking protrusion (15) is provided on the plug-in base (1); or a locking protrusion (15) is provided on the side of the propulsion gear (4), and a locking hole (42) is provided on the plug-in base (1).

3. The pushable self-locking switch module unit according to claim 2, characterized in that: The locking hole (42) and / or the locking protrusion (15) are provided with chamfers; or, the locking hole (42) and / or the locking protrusion (15) are arc surfaces.

4. The pushable self-locking switch module unit according to claim 2, characterized in that: A plurality of locking holes (42) or locking protrusions (15) are evenly arranged on the side surface of the propulsion gear (4) along the circumferential direction, and the number of the locking holes (42) or locking protrusions (15) is equal to the number of teeth of the gear.

5. The pushable self-locking switch module unit according to claim 1, characterized in that: A gear groove (12) is provided at the rear of the plug-in base (1), and support ears (13) are respectively provided on both sides of the gear groove (12), and the propulsion gear (4) is connected to the support ears (13) via a rotating shaft (41).

6. A hot-swap system, characterized in that: It comprises a mounting plate (5), on which a plurality of gear guide bars are arranged at intervals along the left-right direction, each of the gear guide bars comprises a plurality of gear guide grooves (51) arranged at intervals along the front-back direction, and on which a busbar system (6) and a plurality of pushable switch module units as described in any one of claims 1 to 5 are provided.

7. The hot-swap system according to claim 6, wherein: The mounting plate (5) is provided with a plurality of positioning slide groove groups, the positioning slide groove groups include at least one positioning slide groove (52) respectively arranged on the left and right sides, the positioning slide groove (52) includes a mounting portion on the rear side and a limiting portion on the front side; the lower end portion of the plug-in base (1) is provided with an L-shaped positioning buckle (14), the positioning buckle (14) can be moved along the positioning slide rail and is arranged in the positioning slide groove (52), and the bottom width of the positioning buckle (14) is smaller than the mounting portion and larger than the limiting portion.

8. The hot-swap system according to claim 7, wherein: The busbar system (6) is provided with a plurality of inner grid plates (61) arranged in sequence along the left-right direction, and the number and position of the gear guide bars and the positioning slide groove groups correspond to the inner grid plates (61).

9. The hot-swap system according to claim 6, wherein: The plug-in base (1) and the mounting plate (5) are detachably connected via locking bolts.

10. The hot-swap system according to claim 6, wherein: The lower end of the propulsion gear (4) extends downwardly out of the lower end surface of the plug-in base (1).

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