Modules and drawers for protecting socket contacts

Abstract

The utility model relates to the field of electrical equipment, and specifically discloses a module for protecting socket contacts, characterized in that it comprises: a base shell, fixedly arranged around the socket contacts; an external cover plate, fixed to the base shell, provided with a first through hole configured to be passed through by the plug contact of a plug device; an intermediate cover plate, adjacently arranged on the inner side of the external cover plate and provided with a second through hole corresponding to the first through hole; a driving mechanism, configured to drive the intermediate cover plate to move between a blocking position and an open position parallel to the external cover plate, in which the first through hole is completely blocked by the intermediate cover plate, and in which the first through hole is completely unblocked by the intermediate cover plate, and when the plug device moves toward the socket contact, the driving mechanism is actuated by the plug device, thereby driving the intermediate cover plate to move from the blocking position to the open position. The module according to the utility model has a higher protection level. The utility model also proposes a drawer cabinet.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a module for protecting socket contacts and a drawer cabinet. Background Art

[0002] In the electrical field, a drawer cabinet can be used for power distribution and power conversion. The drawer cabinet has a drawer-type structure, which includes a cabinet frame and a drawer that can be received in a drawer accommodating space of the cabinet frame, and the cabinet frame and the drawer are respectively provided with electrical components and electrical circuits.

[0003] As for the specific structure and operation of the drawer cabinet, a socket may be provided on the cabinet frame, and a socket contact is provided in the socket. On the other hand, a plug device may be provided on the drawer, and a plug contact is provided in the plug device. For example, the socket is arranged on a vertical wall of the drawer accommodating space, and the plug device is arranged at a corresponding position on the drawer. The plug contact protrudes from the surface of the drawer, and is configured so that when the drawer moves in the drawer accommodating space, the plug contact contacts with the socket contact to establish an electrical connection, or the plug contact contacts with the socket contact are out of contact to release the electrical connection.

[0004] In existing drawer cabinets, a protection module is generally provided at the socket, which can cover most of the structure of the socket, leaving only a socket for the plug contact to connect with the socket contact. However, in existing drawer cabinets, the protection level of the socket is low, for example, only IP2X level protection is achieved.

[0005] Therefore, it is still desirable to have a solution that provides a higher level of protection for a drawer cabinet or similar equipment. Utility Model Content

[0006] In view of the above problems, according to the first aspect of the utility model, a module for protecting socket contacts is proposed, characterized in that it comprises: a base shell, the base shell is fixedly arranged around the socket contact to form an access opening for accessing the socket contact; an external cover plate, the external cover plate is fixed to the base shell and covers the access opening, and one or more first through holes are provided on the external cover plate, and the first through holes are configured to be passed through by the plug contacts of the plug device; an intermediate cover plate, the intermediate cover plate is adjacently arranged on the inner side of the external cover plate, and is provided with holes corresponding to the one or more first through holes. One or more second through holes, the intermediate cover plate can be moved between a blocking position and an open position parallel to the outer cover plate, wherein in the blocking position, the first through hole is completely blocked by the intermediate cover plate, and in the open position, the first through hole is completely unblocked by the intermediate cover plate, so that the socket contact can be accessed via the first through hole and the second through hole; a driving mechanism, the driving mechanism is configured to drive the movement of the intermediate cover plate between the blocking position and the open position, wherein when the plug device moves toward the socket contact, the driving mechanism is actuated by the plug device, thereby driving the intermediate cover plate to move from the blocking position to the open position.

[0007] According to the module of the first aspect of the utility model, the socket contact is exposed to the external environment only when the plug contact is about to pass through or has passed through the first through hole of the external cover plate, and the first through hole on the external cover plate is blocked by the intermediate cover plate when the plug contact leaves the external cover plate, thereby achieving a higher protection level. In particular, since the intermediate cover plate is adjacently arranged on the inner side of the external cover plate, the protection level of the module can reach a higher level of IP42D, for example.

[0008] The module according to the present invention may have one or more of the following features.

[0009] According to one embodiment, preferably, the module includes a spring, wherein one end of the spring is connected to the base housing and the other end is connected to the intermediate cover plate, and the spring is configured to bias the intermediate cover plate to a blocking position. According to the module of this embodiment, a spring force toward the blocking position is applied to the intermediate cover plate by the spring, so that when the plug contact leaves the external cover plate, the intermediate cover plate is pushed to cover the first through hole on the external cover plate, thereby playing a blocking role.

[0010] According to one embodiment, preferably, the driving mechanism is a connecting rod mechanism. The module according to this embodiment adopts a reliable mechanical structure to actuate the middle cover plate.

[0011] According to one embodiment, preferably, the driving mechanism comprises a driven portion, wherein when the intermediate cover is in the blocking position, the driven portion protrudes away from the socket contact relative to the outer cover, and when the plug device moves toward the socket contact, the plug device drives the intermediate cover to move from the blocking position to the open position by pushing the driven portion. The module according to this embodiment adopts a reliable mechanical structure and driving principle to realize the actuation of the intermediate cover.

[0012] According to one embodiment, preferably, the driving mechanism comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the base housing, the first end of the second connecting rod is rotatably connected to the intermediate cover plate, the second end of the first connecting rod and the second end of the second connecting rod are rotatably connected to each other to define a connecting rod hinge, wherein the driven part of the driving mechanism is the connecting rod hinge. The module according to this embodiment realizes the actuation of the intermediate cover plate with fewer components and a reliable mechanical structure.

[0013] According to one embodiment, preferably, the base shell includes a first rotating shaft rotatably connected to the first end of the first connecting rod, the outer peripheral surface of the first rotating shaft includes a first arc surface, a first side surface, a second arc surface and a second side surface arranged in sequence, wherein the first arc surface and the second arc surface are arranged relative to each other and have a common center and radius, the first side surface and the second side surface are both located within the reference cylinder defined by the first arc surface and the second arc surface, the first end of the first connecting rod includes a receiving channel and a rotating hole, wherein one end of the receiving channel is open at the end of the first end of the first connecting rod, the other end of the receiving channel is connected to the rotating hole, the width of the receiving channel is less than the diameter of the rotating hole and the diameter of the reference cylinder, and the first rotating shaft can be received in the rotating hole through the receiving channel, so that the first connecting rod can rotate relative to the first rotating shaft. According to the module of this embodiment, when installing, the first end of the first connecting rod can be simply installed to the first rotating shaft, and when the drawer cabinet is actually working or repaired, the first connecting rod will not fall off the first rotating shaft, ensuring the reliability of the entire device.

[0014] According to one embodiment, preferably, the intermediate cover plate includes a second rotating shaft rotatably connected to the first end of the second connecting rod, the outer peripheral surface of the second rotating shaft includes a first arc surface, a first side surface, a second arc surface and a second side surface arranged in sequence, wherein the first arc surface and the second arc surface are arranged relative to each other and have a common center and radius, the first side surface and the second side surface are both located within the reference cylinder defined by the first arc surface and the second arc surface, the first end of the second connecting rod includes a receiving channel and a rotating hole, wherein one end of the receiving channel is open at the end of the first end of the second connecting rod, the other end of the receiving channel is connected to the rotating hole, the width of the receiving channel is less than the diameter of the rotating hole and the diameter of the reference cylinder, and the second rotating shaft can be received in the rotating hole through the receiving channel, so that the second connecting rod can rotate relative to the second rotating shaft. According to the module of this embodiment, when installing, the first end of the second connecting rod can be simply installed to the second rotating shaft, and when the drawer cabinet is actually working or repaired, the second connecting rod will not fall off the second rotating shaft, ensuring the reliability of the entire device.

[0015] According to one embodiment, preferably, the second end of the first connecting rod and the second end of the second connecting rod respectively have through holes, the driving mechanism further includes a snap pin, the snap pin includes a first protrusion protruding radially outward at the first end of the snap pin and a plurality of arms spaced apart from each other at the second end of the snap pin, one or more of the plurality of arms have a second protrusion protruding radially outward at the second end of the snap pin, so that the second end of the snap pin can pass through the through hole by elastic deformation of the plurality of arms toward each other, and the snap pin rotatably connects the second end of the first connecting rod and the second end of the second connecting rod to each other through the first protrusion and the second protrusion. According to the module of this embodiment, when installing, the first connecting rod and the second connecting rod can be simply connected to each other, and when the drawer cabinet is actually working or overhauled, the first connecting rod and the second connecting rod will not be separated, thereby ensuring the reliability of the entire device.

[0016] According to one embodiment, preferably, the movement of the middle cover plate between the blocking position and the open position defines a transverse direction, the base shell is provided with an elongated guide protrusion extending along the transverse direction, the middle cover plate is provided with a guide groove extending along the transverse direction, the guide protrusion is received in the guide groove to guide the movement of the middle cover plate between the blocking position and the open position. According to the module of this embodiment, the movement of the middle cover plate between the blocking position and the open position can maintain a stable movement direction.

[0017] According to one embodiment, preferably, the edge of the first through hole is provided with a chamfer for guiding the plug contact. According to the module of this embodiment, the plug contact can be more easily inserted into the first through hole and the second through hole, while protecting various components from damage.

[0018] According to a second aspect of the utility model, a drawer cabinet is proposed, comprising: a cabinet frame; a socket fixedly arranged on the cabinet frame, the socket comprising socket contacts; a drawer capable of moving relative to the cabinet frame, the drawer comprising a plug device, the plug contacts of the plug device being configured to be plugged into the socket contacts of the socket, characterized in that the drawer cabinet also comprises any of the aforementioned modules.

[0019] The drawer cabinet according to the second aspect of the utility model also has an improved protection level accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0021] Figure 1A and Figure 1B A perspective view of a drawer cabinet according to the present invention is shown, which schematically shows a drawer. Figure 1A In the drawer, the drawer is completely in the drawer storage space. Figure 1B In the drawer, the drawer is partially pulled out of the drawer receiving space. Figure 1C for Figure 1B A partial enlarged view of .

[0022] Figure 2A shows a cross-sectional view of the drawer cabinet according to the utility model along the horizontal direction, Figure 2B for Figure 2A A partial enlarged view of .

[0023] Figure 3 An exploded perspective view of a module according to the present invention and a socket fixedly arranged on a cabinet frame are shown.

[0024] Figure 4A and Figure 4B A perspective view of a module according to the present invention is shown. Figure 4A In the middle cover, the middle cover is in the blocking position. Figure 4B The middle cover is in the open position.

[0025] Figure 5A and Figure 5B A perspective view of a module according to the present invention is shown without showing the external cover. Figure 5A In the middle cover, the middle cover is in the blocking position. Figure 5B The middle cover is in the open position.

[0026] Figure 6 It is a cross-sectional view of the module according to the present invention along the vertical direction and the lateral direction, showing the guide protrusions and the corresponding guide grooves.

[0027] Fig. 7A A cross-sectional view showing a first end of a first connecting rod and a first rotation axis of a module according to the present invention is shown, FIG. 7B to FIG. 7D The figure shows the process of installing the first connecting rod of the module according to the present invention.

[0028] Fig. 8A A partially exploded view of a module according to the present invention is shown, specifically showing a snap pin, Figure 8B for Fig. 8A A partial enlarged view of .

[0029] Reference numerals list

[0030] 100 modules

[0031] 110 base housing

[0032] 111 Access opening

[0033] 112 Buckle slot

[0034] 113 Guide protrusion

[0035] 115 snap-on piece

[0036] 116 first spring receiving portion

[0037] 117 Buckle pin receiving portion

[0038] 120 First rotation axis

[0039] 121 The first arc surface of the first rotation axis

[0040] 122 The second arc surface of the first rotation axis

[0041] 123 First side of the first rotation axis

[0042] 124 Second side of the first rotation axis

[0043] 125 Reference cylinder for the first rotation axis

[0044] 1250 Diameter of the reference cylinder about the first axis of rotation

[0045] 126 Width of the first rotation axis

[0046] 130 External cover

[0047] 131 First through hole

[0048] 132 Edge of the first through hole

[0049] 140 Middle cover

[0050] 141 Second through hole

[0051] 142 snap-on piece

[0052] 143 Guide slot

[0053] 1431 Guide groove wall

[0054] 1432Wall of the guide groove

[0055] 144 Connecting rod receiving slot

[0056] 145 Buckle pin receiving portion

[0057] 146 second spring receiving portion

[0058] 150 Second rotation axis

[0059] 200 Drive mechanism

[0060] 201 Driven part

[0061] 202 connecting rod hinge

[0062] 210 First connecting rod

[0063] 211 First end portion of the first connecting rod

[0064] 212 second end portion of the first connecting rod

[0065] 213 Receiving channel of the first connecting rod

[0066] 2130 Width of receiving channel

[0067] 214 Rotation hole of the first connecting rod

[0068] 2140 Diameter of the rotating hole of the first connecting rod

[0069] 215 Through hole of first connecting rod

[0070] 220 Second connecting rod

[0071] 221 First end portion of the second connecting rod

[0072] 222 second end portion of the second connecting rod

[0073] 225 Through hole of second connecting rod

[0074] 250 snap pin

[0075] 251 First end of the snap pin

[0076] 252 second end of the snap pin

[0077] 253 First Bump

[0078] 254 Arm

[0079] 255 Second bulge

[0080] 300 Spring

[0081] 301 First end of spring

[0082] 302 Second end of spring

[0083] 400 sockets

[0084] 410 socket contacts

[0085] 500 Plug device

[0086] 510 plug contacts

[0087] 520 Drawers

[0088] 600 Drawer Chest

[0089] 610 Cabinet Frame

[0090] 615 drawer storage space

[0091] 620 Cabinet Board

[0092] 625 Buckle slot

[0093] 700 Screws

[0094] L Horizontal direction

[0095] L1 First transverse direction

[0096] L2 Second lateral direction

[0097] D Drawer moving direction

[0098] D1 Drawer moving direction

[0099] D2 Drawer removal direction DETAILED DESCRIPTION

[0100] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in combination with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0101] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to direct connections, but may include indirect connections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0102] The present invention will be described in detail below by describing exemplary embodiments.

[0103] Figure 1A and Figure 1B FIG. 2 shows a perspective view of a drawer cabinet 600 according to the present invention. The drawer cabinet 600 includes a cabinet frame 610, a socket 400, a drawer 520 and a module 100. Figure 1A and Figure 1B As shown, the cabinet frame 610 defines a plurality of drawer accommodating spaces 615 for accommodating drawers, and the plurality of drawer accommodating spaces 615 are vertically arranged in the cabinet frame 610. The drawers can move relative to the cabinet frame 610, for example, into or out of the corresponding drawer accommodating spaces 615. Figure 1A and Figure 1B Only one drawer 520 is schematically shown. Figure 1A In the embodiment, the drawer 520 is completely located in a drawer receiving space 615. Figure 1B In the embodiment, the drawer 520 is partially moved out of the drawer accommodating space 615 .

[0104] Figure 1A and Figure 1BAlso shown are the sockets 400 mounted on the cabinet frame 610 and the module 100 according to the present invention for protecting the socket contacts 410 of the sockets 400. The module 100 is used to protect the socket contacts 410, as described in detail later. For example, for each socket 400 on the drawer cabinet 600, the module 100 can be set accordingly, thereby providing protection for the socket contacts 410 of all the sockets 400.

[0105] Figure 1C for Figure 1B A partial enlarged view of the Figure 1B and Figure 1C , the corresponding module 100 in the drawer receiving space 615 where the drawer 520 is located is shown as being separated from the socket 400 to show the socket 400. The socket 400 is fixedly arranged on the cabinet frame 610. Specifically, as shown in FIG. Figure 1C As shown, the innermost surface of the drawer receiving space 615 is defined by a cabinet plate 620, on which the socket 400 is fixedly disposed, and the socket 400 includes a socket contact 410 (see also Figure 2A and Figure 2B ). On the other hand, see Figure 1C The other drawer accommodating space 615 of the drawer is not shown, and the installed module 100 basically surrounds the socket 400 on the cabinet plate 620, so that external objects (such as the plug contact 510 of the plug device 500) can only pass through the first through hole 131 and the second through hole 141 (see Figure 3 ) is connected to the socket 400 and the socket contact 410.

[0106] Continue to refer Figure 1C The drawer 520 includes a plug device 500, and the plug device 500 includes a plug contact 510. According to the utility model, the plug contact 510 of the plug device 500 is configured to be plugged with the socket contact 410 of the socket 400. As the drawer 520 moves along the drawer moving-in direction D1, that is, moves toward the socket contact 410, the plug contact 510 passes through the first through hole 131 and the second through hole 141 on the module 100 and plugs with the socket contact 410. In the case where the plug contact 510 has been plugged with the socket contact 410, as the drawer 520 moves along the drawer moving-out direction D2, that is, moves away from the socket contact 410, the plug contact 510 and the socket contact 410 will be out of contact, and the plug contact 510 moves out of the module 100, as described in detail below. The drawer moving direction D1 is opposite to the drawer moving direction D2 , and both are collectively referred to as the drawer moving direction D, which is jointly defined by the drawer accommodating space 615 and the drawer 520 .

[0107] Figure 2AA cross-sectional view along a horizontal direction of a drawer cabinet 600 according to the present invention is shown, wherein the cross-section passes through a drawer 520 . Figure 2B for Figure 2A An enlarged partial view of the vicinity of the connector device 500 is shown. Figure 2A and Figure 2B The socket 400, the plug device 500, and the socket contacts 410 and the plug contacts 510 plugged into each other are all shown. Figure 2A and Figure 2B The location of module 100 is indicated in FIG.

[0108] Figure 3 FIG. 4 shows an exploded perspective view of the module 100 according to the present invention and a socket 400 fixedly arranged on a cabinet frame 610. Figure 3 It is further shown that the socket 400 is fixedly arranged on the cabinet plate 620. On the other hand, the module 100 includes a base housing 110, an outer cover plate 130, an intermediate cover plate 140 and a drive mechanism 200. Specifically, the base housing 110 is fixedly arranged around the socket 400 to form an access opening 111 for accessing the socket contact 410 of the socket 400. For example, a snap-on piece 115 is provided on the base housing 110, and a snap-on groove 625 is provided on the cabinet plate 620, so that the base housing 100 is fixed to the cabinet plate 620 and surrounds the socket contact 410 by snapping the snap-on piece 115 into the snap-on groove 625. It should be noted that in the embodiments of the various figures, the socket 400 shown has four socket contacts 410, but the utility model is not intended to limit the number of the socket contacts 410.

[0109] Also refer to Figure 4A and Figure 4B , the external cover plate 130 is fixed to the base housing 110 and covers the access opening 111. For example, the external cover plate 130 can be fixed to the base housing 110 by screws 700. The external cover plate 130 is provided with one or more first through holes 131 (four first through holes 131 in the figure), and the first through holes 131 are configured to pass through the plug contacts 510 of the plug device 500. Among them, the edges 132 of the first through holes 131 can be provided with chamfers for guiding the plug contacts 510, and the first through holes 131 can be larger than the corresponding cross-sectional dimensions of the plug contacts 510.

[0110] Also refer to Figure 5A and Figure 5B, the middle cover plate 140 is disposed adjacently to the inner side of the outer cover plate 130, that is, disposed in the space defined by the outer cover plate 130, the base shell 110 and the cabinet plate 620. According to an embodiment of the utility model, the middle cover plate 140 can be disposed with a small spacing from the outer cover plate 130, and the spacing is, for example, less than 0.2 mm, less than 0.1 mm, or less than 0.05 mm. According to an embodiment of the utility model, the middle cover plate 140 can be disposed to contact with the outer cover plate 130, but can still slide relative to the outer cover plate 130, and the above arrangement can further improve the protection level of the module 100.

[0111] Continue to refer Figure 3 , the middle cover plate 140 is provided with one or more second through holes 141 corresponding to the one or more first through holes 131. According to the utility model, the middle cover plate 140 can move between a blocking position and an open position parallel to the outer cover plate 130. In the blocking position, the first through hole 131 is completely blocked by the middle cover plate 140, and in the open position, the first through hole 131 is not blocked by the middle cover plate 140 at all. In other words, in the blocking position, the through hole area surrounded by each second through hole 141 of the middle cover plate 140 does not overlap with the through hole area surrounded by the corresponding first through hole 131 of the outer cover plate 130, and in the open position, the through hole area surrounded by each second through hole 141 of the middle cover plate 140 completely covers the through hole area surrounded by the corresponding first through hole 131 of the outer cover plate 130. Thus, in the open position, the socket contact 410 can be accessed via the first through hole 131 and the second through hole 141.

[0112] Still reference Figure 3 , the middle cover plate 140 has a snap piece 142, and the base housing 110 is provided with a corresponding snap groove 112. The middle cover plate 140 is mounted on the base housing 110 by receiving the snap piece 142 in the snap groove 112. The snap piece 142 is restricted in the snap groove 112 so that the snap piece 142 can only move in the transverse direction L, so that the middle cover plate 140 is not completely fixed relative to the base housing 110, but can move relative to the base housing 110 in the transverse direction L. In addition, the size of the middle cover plate 140 is also set to enable it to move in the transverse direction L in the space surrounded by the outer cover plate 130, the base housing 110 and the cabinet panel 620.

[0113] Figure 3 Also shown is a drive mechanism 200, which is configured to drive the movement of the intermediate cover 140 between the blocking position and the open position. As described in detail below, when the plug device 500 moves toward the socket contact 410, the drive mechanism 200 is actuated by the plug device 500, thereby driving the intermediate cover 140 to move from the blocking position to the open position.

[0114] Next, refer to Figure 4A , 4B , 5A, 5B, further illustrate the working principle of the driving mechanism 200. Figure 4A and Figure 4B A perspective view of a module 100 according to the present invention is shown. Figure 4A In the middle cover plate 140, the middle cover plate 140 is in the blocking position. Figure 4B , the middle cover 140 is in an open position. Figure 5A and Figure 5B A perspective view of the module 100 according to the present invention is shown, and the outer cover plate 130 is hidden to show the middle cover plate 140. Figure 5A In the middle cover plate 140, the middle cover plate 140 is in the blocking position. Figure 5B , the middle cover 140 is in an open position.

[0115] According to the utility model, the driving mechanism 200 is a connecting rod mechanism. Specifically, the driving mechanism 200 includes a first connecting rod 210 and a second connecting rod 220. The first end 211 of the first connecting rod is rotatably connected to the base housing 110, the first end 221 of the second connecting rod is rotatably connected to the intermediate cover plate 140, and the second end 212 of the first connecting rod and the second end 222 of the second connecting rod are rotatably connected to each other to define a connecting rod hinge 202. Further, the size and arrangement of the first connecting rod 210 and the second connecting rod 220 are set so that, when the intermediate cover plate 140 is in the blocking position, there is a first angle between the first connecting rod 210 and the second connecting rod 220, and the second end 212 of the first connecting rod and the second end 222 of the second connecting rod both protrude relative to the outer cover plate 130 in a direction away from the socket contact 410. In other words, when the intermediate cover plate 140 is in the blocking position, the connecting rod hinge 202 protrudes away from the socket contact 410 relative to the outer cover plate 130.

[0116] Further, according to Figure 4A and Figure 5A When the connecting rod hinge portion 202 is pushed toward the socket contact 410, the connecting rod hinge portion 202 moves toward the socket contact 410, the angle between the first connecting rod 210 and the second connecting rod 220 increases, and the second connecting rod 220 further pushes the middle cover plate 140 to move from the blocking position to the open position along the first transverse direction L1 ( Figure 4B and Figure 5B). Thus, when the plug device 500 moves toward the socket contact 410, the plug device 500 can drive the middle cover plate 140 to move from the blocking position to the open position by pushing the connecting rod hinge portion 202. Therefore, in the embodiment shown in the drawings, the connecting rod hinge portion 202 serves as the driven portion 201 of the driving mechanism 200, thereby realizing the driving of the middle cover plate 140 with a small number of components and a reliable mechanical structure. On the other hand, according to an embodiment not shown in the utility model, the driven portion 201 can also be other parts of the driving mechanism 200, as long as the driven portion 201 can be similarly pushed by the plug device 500 so that the driving mechanism 200 drives the middle cover plate 140 to perform the aforementioned movement.

[0117] Continue to refer Figure 4B and Figure 5B When the middle cover 140 is in the open position, the angle between the first link 210 and the second link 220 can be increased to about 180 degrees, so that the first link 210 and the second link 220 are substantially in a straight line. As a result, the plug device 500 can be as close to the socket contact 410 as possible, for example, the surface of the non-plug contact 510 of the plug device 500 is close to the surface of the outer cover 130, and most of the plug contact 510 is inserted behind the middle cover 140.

[0118] on the other hand, Figure 4A and Figure 5A It is shown that in the blocking position, the first through holes 131 are completely blocked by the middle cover plate 140 , that is, the through hole area surrounded by each second through hole 141 of the middle cover plate 140 does not overlap with the through hole area surrounded by the corresponding first through holes 131 of the outer cover plate 130 . Figure 4B and Figure 5B It is shown that in the open position, the first through holes 131 are completely unblocked by the middle cover plate 140 , and the through hole areas surrounded by the second through holes 141 of the middle cover plate 140 completely cover the through hole areas surrounded by the corresponding first through holes 131 of the outer cover plate 130 .

[0119] However, it should be understood that according to the embodiment shown in the drawings, the blocking position or the open position of the middle cover plate 140 corresponds to a position range of the middle cover plate 140 along the transverse direction L. In other words, when the middle cover plate 140 is in a first position range along the transverse direction L, the middle cover plate 140 is in the blocking position, and when the middle cover plate 140 is in a second position range different from the first position range along the transverse direction L, the middle cover plate 140 is in the open position. In addition, when the middle cover plate 140 is in a third position range between the first position range and the second position range, the middle cover plate 140 is in a transition position. In the transition position, the through hole area surrounded by each second through hole 141 of the middle cover plate 140 partially covers the through hole area surrounded by the corresponding first through hole 131 of the outer cover plate 130. In fact, as the plug device 500 moves toward the socket contact 410 and pushes the connecting rod hinge 202, the middle cover plate 140 goes through three position ranges of the blocking position, the transition position and the open position. Therefore, according to the present invention, the size of the second through hole 141 is larger than the size of the corresponding first through hole 131 .

[0120] Figure 6 The module 100 includes a spring 300 (see also Figure 3 ). The first end 301 of the spring 300 is connected to the base housing 110, and the second end 302 of the spring 300 is connected to the middle cover 140. Specifically, the first end 301 of the spring 300 is received in the first spring receiving portion 116 of the base housing 110, and the second end 302 of the spring 300 is received in the second spring receiving portion 146 of the middle cover 140 on the side facing the socket contact 410. Thus, the spring 300 is configured to bias the middle cover 140 to the blocking position. In other words, when the plug device 500 leaves the module 100, the spring 300 pushes the middle cover 140 to move to the blocking position along the lateral direction L.

[0121] Figure 6 Also shown are an elongated guide protrusion 113 extending in the transverse direction L provided on the base housing 110, and a guide groove 143 extending in the transverse direction L provided on the side of the intermediate cover 140 facing the socket contact 410. The guide groove 143 is defined by two parallel walls 1431, 1432. The guide protrusion 113 is received in the guide groove 143 to guide the intermediate cover 140 to move more stably. According to the utility model, the length of the elongated guide protrusion 113 can be greater than 3.5 times its width.

[0122] Fig. 7A 1 shows a cross-sectional view of the first end 211 of the first connecting rod and the first rotation axis 120 of the module 100 according to the present invention, FIG. 7B to FIG. 7D The process of installing the first connecting rod 210 of the module 100 according to the present invention is shown.

[0123] like Fig. 7A As shown, the first rotation axis 120 is a cylinder, and the outer circumferential surface of the first rotation axis 120 includes a first arc surface 121, a first side surface 123, a second arc surface 122, and a second side surface 124 arranged in sequence, wherein the first arc surface 121 and the second arc surface 122 are arranged opposite to each other and have a common center and radius, thereby defining a reference cylinder 125, and the first side surface 123 and the second side surface 124 are both located within the reference cylinder 125 defined by the first arc surface 121 and the second arc surface 122. Specifically, the first side surface 123 and the second side surface 124 may be two planes parallel to each other, and intersect with the reference cylinder 125 to form the first rotation axis 120.

[0124] Still reference Fig. 7A The first end portion 211 of the first connecting rod includes a receiving channel 213 and a rotating hole 214, one end of the receiving channel 213 is open at the end of the first end portion 211 of the first connecting rod, and the other end of the receiving channel 213 is connected to the rotating hole 214, so that the receiving channel 213 and the rotating hole 214 together form a U-shaped opening. The width 2130 of the receiving channel 213 is smaller than the diameter 2140 of the rotating hole 214 and the diameter 1250 of the reference cylinder 125, and the first rotating shaft 120 can be received in the rotating hole 214 through the receiving channel 213, so that the first connecting rod 210 can rotate relative to the first rotating shaft 120.

[0125] So, if Fig. 7A The first connecting rod 210 and the first rotating shaft 120 shown can be used FIG. 7B to FIG. 7D Installation method. Figure 7B As shown, the first end portion 211 of the first connecting rod is close to the first rotation axis 120. Figure 7C As shown, the first end 211 of the first connecting rod further approaches the first rotating shaft 120, so that the first rotating shaft 120 enters the receiving channel 213, and the first rotating shaft 120 moves relative to the receiving channel 213 with its first side surface 123 and the second side surface 124 facing the side wall of the receiving channel 213, until the first rotating shaft 120 enters the rotating hole 214. Fig.7D As shown, the first connecting rod 210 rotates around the first rotating shaft 120. Fig.7D After the angle is reached, the first rotating shaft 120 cannot be separated from the first connecting rod 210 via the receiving channel 213. Therefore, after the first connecting rod 210 and the second connecting rod 220 are connected to each other, the first connecting rod 210 cannot be separated from the base housing 110, thereby ensuring the reliability of the device.

[0126] It should be noted that according to the present invention, the second connecting rod 220 can be mounted to the middle cover plate 140 in the same or similar manner via the second rotating shaft 150 located on the middle cover plate 140. Figures 7B-7D The steps shown apply correspondingly to the second connecting rod 220 and the second rotation axis 150 .

[0127] Fig. 8A FIG. 1 shows a partially exploded view of the module 100 according to the present invention, specifically showing the snap pin 250 , Figure 8B for Fig. 8A The snap pin 250 is configured to rotatably connect the second end 212 of the first link and the second end 222 of the second link to each other.

[0128] Specifically, the second end 212 of the first link and the second end 222 of the second link have through holes 215, 225, respectively. On the other hand, the snap pin 250 includes a first protrusion 253 protruding radially outward at the first end 251 of the snap pin and a plurality of arm portions 254 (two arm portions 254 are shown in the drawings) spaced apart from each other at the second end 252 of the snap pin, one or more of the plurality of arm portions 254 having a second protrusion 255 protruding radially outward at the second end 252 of the snap pin, so that the second end 252 of the snap pin can pass through the through holes 215, 225 in sequence by elastic deformation of the plurality of arm portions 254 toward each other, and the snap pin 250 rotatably connects the second end 212 of the first link and the second end 222 of the second link to each other through the first protrusion 253 and the second protrusion 255.

[0129] Therefore, according to the above description, the module 100 according to the utility model can be easily installed on the cabinet frame 610. For example, firstly, the base housing 110 is installed on the cabinet plate 620 by the cooperation of the snap piece 115 and the snap groove 625, then, the middle cover plate 140 is installed on the base housing 110 by the cooperation of the snap piece 142 and the snap groove 112, and then, by combining the above description, the module 100 can be easily installed on the cabinet frame 610. Figures 7B-7D 8 , the first connecting rod 210 and the second connecting rod 220 are installed, and finally, the outer cover plate 130 is fixed to the base housing 110 by screws 700. The entire assembly process requires only minimal tool assistance, and the assembly process is convenient and fast.

[0130] The above describes in detail the exemplary implementation of the module for protecting the socket contacts and the drawer cabinet proposed by the present invention with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed by the present invention can be combined in various ways without exceeding the protection scope of the present invention.

Claims

1. A module for protecting socket contacts, characterized in that: include: A base housing (110), the base housing (110) being fixedly disposed around the socket contact (410) to form an access opening (111) for accessing the socket contact (410); an external cover plate (130), the external cover plate (130) being fixed to the base housing (110) and covering the access opening (111), the external cover plate being provided with one or more first through holes (131), the first through holes (131) being configured to be passed through by the plug contacts (510) of the plug device (500); an intermediate cover plate (140), the intermediate cover plate (140) being arranged adjacent to the inner side of the outer cover plate (130) and being provided with one or more second through holes (141) corresponding to the one or more first through holes (131), the intermediate cover plate (140) being movable parallel to the outer cover plate (130) between a blocking position and an open position, wherein in the blocking position, the first through hole (131) is completely blocked by the intermediate cover plate (140), and in the open position, the first through hole (131) is completely unblocked by the intermediate cover plate (140), so that the socket contact (410) can be accessed via the first through hole (131) and the second through hole (141); A drive mechanism (200) is configured to drive the middle cover plate (140) to move between a blocking position and an open position, wherein when the plug device (500) moves toward the socket contact (410), the drive mechanism (200) is actuated by the plug device (500), thereby driving the middle cover plate (140) to move from the blocking position to the open position.

2. The module according to claim 1, characterized in that The module (100) comprises a spring (300), wherein one end of the spring is connected to the base housing (110) and the other end is connected to the intermediate cover (140), and the spring (300) is configured to bias the intermediate cover (140) to a blocking position.

3. The module according to claim 2, characterized in that The driving mechanism (200) is a connecting rod mechanism.

4. The module according to claim 3, characterized in that The driving mechanism (200) comprises a driven portion (201), wherein when the intermediate cover plate (140) is in a blocking position, the driven portion (201) protrudes away from the socket contact (410) relative to the outer cover plate (130), and when the plug device (500) moves toward the socket contact (410), the plug device (500) drives the intermediate cover plate (140) to move from the blocking position to the open position by pushing the driven portion (201).

5. The module according to claim 4, characterized in that The driving mechanism (200) includes a first connecting rod (210) and a second connecting rod (220), wherein the first end (211) of the first connecting rod is rotatably connected to the base shell (110), the first end (221) of the second connecting rod is rotatably connected to the intermediate cover plate (140), the second end (212) of the first connecting rod and the second end (222) of the second connecting rod are rotatably connected to each other to define a connecting rod hinge portion (202), wherein the driven portion (201) of the driving mechanism is the connecting rod hinge portion (202).

6. The module according to claim 5, characterized in that The base shell (110) includes a first rotating shaft (120) rotatably connected to the first end portion (211) of the first connecting rod, and the outer peripheral surface of the first rotating shaft (120) includes a first arc surface (121), a first side surface (123), a second arc surface (122) and a second side surface (124) arranged in sequence, wherein the first arc surface (121) and the second arc surface (122) are arranged opposite to each other and have a common center and radius, and the first side surface (123) and the second side surface (124) are both located within a reference cylinder (125) defined by the first arc surface (121) and the second arc surface (122). The first end portion (211) of the first connecting rod includes a receiving channel (213) and a rotating hole (214), wherein one end of the receiving channel (213) is open at the end of the first end portion of the first connecting rod, and the other end of the receiving channel (213) is connected to the rotating hole (214), the width of the receiving channel (213) is smaller than the diameter of the rotating hole (214) and the diameter of the reference cylinder (125), and the first rotating axis (120) can be received in the rotating hole (214) through the receiving channel (213), so that the first connecting rod (210) can rotate relative to the first rotating axis (120).

7. The module according to claim 5, characterized in that The intermediate cover plate (140) comprises a second rotating shaft (150) rotatably connected to the first end portion (221) of the second connecting rod, the outer peripheral surface of the second rotating shaft (150) comprises a first arc surface, a first side surface, a second arc surface and a second side surface which are arranged in sequence, wherein the first arc surface and the second arc surface are arranged opposite to each other and have a common center and radius, and the first side surface and the second side surface are both located within a reference cylinder defined by the first arc surface and the second arc surface, The first end (221) of the second connecting rod includes a receiving channel and a rotating hole, wherein one end of the receiving channel is open at the end of the first end of the second connecting rod, and the other end of the receiving channel is connected to the rotating hole, the width of the receiving channel is smaller than the diameter of the rotating hole and the diameter of the reference cylinder, and the second rotating axis (150) can be received in the rotating hole through the receiving channel, so that the second connecting rod (220) can rotate relative to the second rotating axis (150).

8. The module according to claim 5, characterized in that The second end portion (212) of the first connecting rod and the second end portion (222) of the second connecting rod have through holes (215, 225) respectively. The driving mechanism (200) further comprises a buckle pin (250), wherein the buckle pin (250) comprises a first protrusion (253) radially protruding outward at the first end portion (251) of the buckle pin and a plurality of arm portions (254) spaced apart from each other at the second end portion (252) of the buckle pin, wherein one or more of the plurality of arm portions (254) are arranged at the buckle pin. The second end (252) of the buckle pin has a second protrusion (255) protruding radially outward, so that the second end (252) of the buckle pin can pass through the through holes (215, 225) through the elastic deformation of the multiple arms (254) toward each other, and the buckle pin (250) rotatably connects the second end (212) of the first connecting rod and the second end (222) of the second connecting rod to each other through the first protrusion (253) and the second protrusion (255).

9. The module according to claim 1, characterized in that The movement of the middle cover plate (140) between the blocking position and the open position is limited in a transverse direction (L), the base shell (110) is provided with an elongated guide protrusion (113) extending along the transverse direction (L), the middle cover plate (140) is provided with a guide groove (143) extending along the transverse direction (L), and the guide protrusion (113) is received in the guide groove (143) to guide the movement of the middle cover plate (140) between the blocking position and the open position.

10. The module according to claim 1, characterized in that An edge (132) of the first through hole (131) is provided with a chamfer for guiding the plug contact (510).

11. A drawer cabinet, comprising: Cabinet frame (610); A socket (400) is fixedly arranged on the cabinet frame (610), and the socket (400) includes a socket contact (410); A drawer (520) is movable relative to the cabinet frame (610), the drawer (520) comprising a plug device (500), the plug contact (510) of the plug device (500) being configured to be plugged into the socket contact (410) of the socket, Characterized in that the drawer cabinet (600) further comprises a module (100) according to any one of claims 1 to 10.

Images