Module plugging and unplugging structure

Abstract

The present invention discloses a module plugging and unplugging structure, which includes a first plugging module having a first end face. Slots are provided on the first end face and are arranged oppositely. The slots have first clamping portions arranged in a first direction. A plurality of grooves are also recessed on the first end face, and each groove has a first guiding surface and a second guiding surface arranged oppositely along the first direction. A second plugging module includes a housing on which a receiving cavity for receiving the first plugging module is formed. And a locking mechanism is elastically connected to the housing in the first direction and can move relative to the receiving cavity in the first direction. The locking mechanism includes a latch matching the slots and an ejecting portion matching the grooves. Both the latch and the ejecting portion are located in the receiving cavity. The latch has a second clamping portion arranged in the first direction and cooperating with the first clamping portion. The present invention can mutually convert the longitudinal movement and the lateral movement of two modules, and the force is balanced during the conversion process, realizing efficient plugging between the modules.

Description

Technical Field

[0001] The present invention relates to module plugging in an automated system, and particularly to a module plugging and unplugging structure. Background Art

[0002] Most modules in an automated system are plug-in modules and are connected to a bus system or a bridging system. Therefore, it is required that the module can be stably inserted and connected to the bus system, and at the same time, the module is convenient to plug and unplug.

[0003] In an existing ejecting mechanism, an inserting module can be inserted into a connector or a base by converting the moving direction - converting longitudinal movement into lateral movement. When unlocking, the inserting module is also ejected by converting lateral movement into longitudinal movement. However, the disadvantage of the existing technology is that the ejecting mechanism is a slender strip structure and the force is unbalanced; and during the process of module plugging and unplugging, since the module and the connector are not stably connected, the electrical signal transmission between the module and the connector is unstable and error signals are easily generated.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a module plugging and unplugging structure, which can convert the longitudinal movement and lateral movement of the module with each other through a movable locking mechanism and an ejecting part thereon, and the force is balanced during the conversion process, so as to realize efficient plugging and unplugging between the module and the connector or the base.

[0006] To achieve the above purpose, an embodiment of the present invention provides a module plugging and unplugging structure, including a first plugging module, a second plugging module and a locking mechanism.

[0007] The first plugging module has a first end face, on which opposite slots are provided. The slots have first clamping parts arranged in the same direction in a first direction. A plurality of grooves are also recessed on the first end face, and each groove has a first guiding surface and a second guiding surface arranged oppositely along the first direction respectively.

[0008] The second plugging module includes a housing, and an accommodation cavity for accommodating the first plugging module is formed on the housing.

[0009] The locking mechanism is elastically connected to the housing in a first direction and is movable relative to the receiving cavity in the first direction. The locking mechanism includes a latch that matches the slot and a top portion that matches the groove. Both the latch and the top portion are located within the receiving cavity. The latch has a second latching portion arranged in the same direction in the first direction.

[0010] During the insertion process of the first insertion module and the second insertion module, the top portion drives the locking mechanism to move relative to the receiving cavity in the first direction under the action of the second guiding surface. The latch is received in the slot and the second latching portion abuts against the first latching portion in the insertion direction, realizing the locking of the first insertion module and the second insertion module. When the locking mechanism moves in the first direction under an external force, the second latching portion disengages from the first latching portion. At the same time, the top portion jacks up the first insertion module under the action of the first guiding surface, completing the unlocking of the first insertion module and the second insertion module.

[0011] In one or more embodiments of the present invention, the receiving cavity has a bottom surface, and a plurality of through holes are formed in the bottom surface. The locking mechanism is disposed on the side of the bottom surface away from the receiving cavity. The latch and the top portion pass through the through holes and are located within the receiving cavity. The through holes have a certain length in the first direction, so that the locking mechanism can drive the latch and the top portion to move in the first direction to realize locking and unlocking.

[0012] In one or more embodiments of the present invention, the locking mechanism is elastically connected to the bottom surface through a tension spring, and the tension spring is in a natural or stretched state.

[0013] In one or more embodiments of the present invention, the top portion has a first top surface and a second top surface that cooperate with the first guiding surface and the second guiding surface. The first top surface is configured as a stepped surface, the second top surface is configured as an inclined surface, and both the first guiding surface and the second guiding surface are configured as inclined surfaces.

[0014] In one or more embodiments of the present invention, the latch includes a support leg, and the second latching portion is disposed at the end of the support leg.

[0015] In one or more embodiments of the present invention, a first connector is fixed on the first end surface, and a second connector is fixed in the receiving cavity. When the first insertion module and the second insertion module are inserted, the first connector and the second connector are electrically connected.

[0016] In one or more embodiments of the present invention, a moving contact piece is further provided on the locking mechanism, and the moving contact piece is disposed on a surface of the locking mechanism opposite to the ejecting portion in the insertion direction.

[0017] In one or more embodiments of the present invention, the moving contact piece includes a fixing portion and a contact portion. The fixing portion is disposed on the locking mechanism through a connecting member. The contact portion extends away from the ejecting portion along the insertion direction from both ends of the fixing portion, so that the contact portion protrudes partially from the surface of the locking mechanism.

[0018] In one or more embodiments of the present invention, a circuit board is disposed in the housing of the second plug-in module, and a static contact piece is disposed at a predetermined position on the circuit board. The contact portion of the moving contact piece is in contact with the static contact piece in the locked state, and the first connector is electrically connected to the second connector; the contact portion of the moving contact piece is separated from the static contact piece during the unlocking process, and the first connector and the second connector are not powered on.

[0019] In one or more embodiments of the present invention, the locking structure includes a driving member and a locking member that are fixedly stacked. The fixing portion of the moving contact piece is disposed between the driving member and the locking member. A slot is formed in the locking member, and the contact portion passes through the slot and protrudes partially from the surface of the locking member.

[0020] In one or more embodiments of the present invention, a gap is provided between the locking member and the driving member at the installation position of the moving contact piece, and the size of the gap is greater than or equal to the thickness of the fixing portion of the moving contact piece.

[0021] In one or more embodiments of the present invention, the connecting member includes a boss disposed at the installation position. A first limiting hole is provided on the fixing portion of the moving contact piece, and a second limiting hole is provided at the installation position on the locking member. The boss passes through the first limiting hole and the second limiting hole, so that the moving contact piece is relatively fixed between the locking member and the driving member.

[0022] In one or more embodiments of the present invention, the moving contact piece is a resilient reed piece, and the contact portion includes a sliding foot having a smooth arc surface. The moving contact piece can abut against the locking mechanism under the action of the second plug-in module.

[0023] In the above embodiment, this setting method can make the moving contact piece receive less force during the initial assembly of the second plug-in module, more effectively protect the elastic function of the moving contact piece, and ensure the contact stability of the second plug-in module.

[0024] In one or more embodiments of the present invention, a support portion is further provided on the locking mechanism, and a jack corresponding to the position of the support portion is formed on the housing of the second plugging module. By toggling the support portion through the jack, the locking mechanism can be driven to move in the first direction.

[0025] In other embodiments of the present invention, the support portion can pass through the jack and partially protrude from the surface of the jack, and the jack has a certain length in the first direction, so that the support portion moves in the first direction under an external force to drive the locking mechanism to move.

[0026] Compared with the prior art, the module plugging and unplugging structure of the embodiments of the present invention has the following advantages:

[0027] (1) The insertion of the first plugging module is automatically locked by the buckle on the locking mechanism and the slot on the first plugging module, and the tension spring provides tension to maintain the locked state, effectively reducing the operation steps, reducing the cost, and simultaneously reducing the risk of connection failure of the connector caused by non-locking.

[0028] (2) The longitudinal movement of the first plugging module and the lateral movement of the locking mechanism are mutually converted through the movable locking mechanism and the ejecting portion thereon to automatically eject the first plugging module, and the force is balanced during the conversion process, which can effectively reduce the operation steps, reduce the cost, and realize the efficient plugging between the module (the first plugging module) and the connector or the base (the second plugging module).

[0029] (3) The contact or separation between the moving contact piece and the static contact piece is realized through the movement of the moving contact piece to control the electrical conduction between the two plugging modules, which can effectively solve the problem of unstable connection signals or error signals generated during the module plugging process.

[0030] (4) The locking mechanism uses a combination of two parts (the locking part and the driving part), effectively improving the strength of the locking mechanism. One part (the driving part) controls the movement, and one part (the locking part) controls self-locking and ejecting unlocking. This combination can better realize the realization of multiple functions of sliding and self-locking / unlocking.

[0031] (5) The locking mechanism and the second plugging module are connected by two tension springs, which can make the locking mechanism receive uniform force during sliding, and simultaneously obtain greater force to meet the locking requirements.

[0032] (6) By unlocking and ejecting the first plugging module through the locking mechanism, up to 96-pin three-row plugging modules can be synchronously detached and lifted.

[0033] (7) The module plugging and unplugging structure of the present invention is a power-on and power-off mechanism applicable to a gas corrosion environment, and has the functions of inserting the redundant IO module first and then powering on, and removing it after powering off first. Brief Description of the Drawings

[0034] Figure 1 is a perspective view of a module plug-in structure according to an embodiment of the present invention;

[0035] Figure 2 is a sectional view (front view) of a module plug-in structure according to an embodiment of the present invention;

[0036] Figure 3 is a sectional view (perspective view) of a module plug-in structure according to an embodiment of the present invention;

[0037] Figure 4 is a perspective view of a first plug-in module according to an embodiment of the present invention;

[0038] Figure 5 is a sectional view (front view) of a first plug-in module according to an embodiment of the present invention;

[0039] Figure 6 is a perspective view of a second plug-in module according to an embodiment of the present invention;

[0040] Figure 7 is a perspective view of a locking mechanism according to a first perspective of an embodiment of the present invention;

[0041] Figure 8 is a perspective view of a locking mechanism according to a second perspective of an embodiment of the present invention;

[0042] Figure 9 is an exploded view of a locking mechanism according to an embodiment of the present invention;

[0043] Figure 10 is a sectional view of a locking mechanism according to a second perspective of an embodiment of the present invention;

[0044] Figures 11-12 is a schematic diagram of unlocking a module plug-in structure using a tool according to an embodiment of the present invention. Detailed Embodiments

[0045] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. However, it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0046] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0047] In the present invention, the first direction is Figure 1 the x-axis direction in Figure 1 and the plug-in direction is the z-axis direction in

[0048] As Figure 1 shown, a preferred embodiment of the present invention provides a module plugging and unplugging structure, including a first plugging module 1, a second plugging module 2 and a locking mechanism 3. The locking mechanism 3 is installed in the second plugging module 2. When the first plugging module 1 is plugged into the second plugging module 2, the locking mechanism 3 can lock the first plugging module 1. When unlocking is required, an external force acts on the locking mechanism 3, and the locking mechanism 3 moves and ejects the first plugging module 1 to complete the detachment between the first plugging module 1 and the second plugging module 2.

[0049] Referring Figures 2-5 to the figure shown, the first plugging module 1 has a first end face 11. A long-strip-shaped first installation groove 111 is formed in the middle of the first end face 11, and a first connector 12 is fixedly installed in the first installation groove 111.

[0050] On the first end face 11, slots 112 are respectively formed at both ends along the long side direction of the long-strip-shaped first installation groove 111. Locking holes 1121 are arranged in the same direction in the slots 112, and a first clamping portion 1122 of the slot 112 is formed below the locking holes 1121. On the first end face 11, two grooves 113 are respectively recessed on each side of the long side of the first installation groove 111. Each groove 113 respectively has a first guiding surface 1131 and a second guiding surface 1132 arranged oppositely in the x-axis direction. Both the first guiding surface 1131 and the second guiding surface 1132 are configured as inclined surfaces, and the inclination degree of the first guiding surface 1131 is less than that of the second guiding surface 1132.

[0051] A guiding groove 13 is further formed on the side wall of the first plugging module 1 along the z-axis direction for guiding the plugging of the first plugging module 1 and the second plugging module 2.

[0052] Referring Figure 2 and Figure 6 to the figures shown, the second plugging module 2 includes a housing 21, and a receiving cavity 211 for receiving the first plugging module 1 is formed on the housing 21. The receiving cavity 211 has a bottom surface 2111. A plurality of first through holes 2112a and second through holes 2112b are formed at positions corresponding to the slots 112 and the grooves 113 on the bottom surface 2111. The first through holes 2112a correspond to the slots 112, and the second through holes 2112b correspond to the grooves 113. The first through holes 2112a and the second through holes 2112b are used for some components on the locking mechanism 3 to pass through to cooperate with the slots 112 and the grooves 113 to lock and unlock the first plugging module 1 and the second plugging module 2.

[0053] A second mounting groove 2113 is formed in the middle of the bottom surface 2111. A second connector 22 is fixedly installed in the second mounting groove 2113. When the first plugging module 1 is plugged into the second plugging module 2, electrical connection is established between the first connector 12 and the second connector 22.

[0054] On the side wall of the accommodation cavity 211, a protruding guiding column 2114 is provided along the z-axis direction. The guiding column 2114 cooperates with the guiding groove 13 of the first plugging module 1 to guide the first plugging module 1 during plugging in the z-axis direction.

[0055] An installation cavity 212 is further formed in the housing 21. A circuit board 2121 is arranged in the installation cavity 212. Fixed contact pieces are arranged at specified positions on the circuit board 2121. The fixed contact pieces can be pins on the installation circuit board 2121.

[0056] Reference Figure 2 、 Figure 3 、 Figures 7-10 As shown, the locking mechanism 3 is configured as a frame structure and is arranged on the side of the bottom surface 2111 of the accommodation cavity away from the accommodation cavity 211. The locking mechanism 3 is elastically connected to the bottom surface 2111 through a tension spring 31, so that the locking mechanism 3 can move back and forth relative to the accommodation cavity 211 in the x-axis direction.

[0057] In a specific embodiment, there are two tension springs 31, and the tension springs 31 are in a natural or stretched state, capable of maintaining a strong locking force between the locking mechanism 3 and the first plugging module 1.

[0058] The locking mechanism 3 includes a driving member 32 and a locking member 33 that are fixedly stacked. Spaces for the second connector 22 to pass through are provided in the middle of both the driving member 32 and the locking member 33.

[0059] Reference Figure 2 and Figure 7 As shown, at both ends of the locking member 33 along the x-axis direction, there are fastening buttons 331 that match the slots 112, and on both sides of the locking member 33 along the x-axis direction, there are ejecting portions 332 that match the grooves 113. When the locking mechanism 3 is installed on the bottom surface 2111 of the accommodation cavity, both the fastening buttons 331 and the ejecting portions 332 respectively pass through the second through holes 2112b and the first through holes 2112a and extend into the accommodation cavity 211.

[0060] Among them, both the first through holes 2212a and the second through holes 2112b have a certain length in the x-axis direction. This length ensures that after the ejecting portions 332 and the fastening buttons 331 are inserted into the first through holes 2212a and the second through holes 2112b, the ejecting portions 332 and the fastening buttons 331 still have moving spaces in the x-axis direction. This moving space allows the locking mechanism 3 to drive the fastening buttons 331 and the ejecting portions 332 to move in the x-axis direction to achieve locking and unlocking.

[0061] The insertion buckle 331 includes a support leg 3311 and a second clamping portion 3312 provided at the end of the support leg 3311. The two second clamping portions 3312 are also arranged along the same direction. The second clamping portion 3312 is clamped with the first clamping portion 1122 to achieve locking between the modules.

[0062] The ejecting portion 332 has a first ejecting surface 3321 and a second ejecting surface 3322 that respectively cooperate with the first guiding surface 1131 and the second guiding surface 1132. The first ejecting surface 3321 is configured as a stepped surface, and the second ejecting surface 3322 is configured as an inclined surface. The first guiding surface 1131 cooperates with the first ejecting surface 3321 of the ejecting portion 332 to eject the first plugging module 1.

[0063] In the above embodiment, during the insertion process of the first plugging module 1 and the second plugging module 2, the ejecting portion 332 drives the locking mechanism 3 to move in the x-axis direction relative to the accommodating cavity 211 under the action of the second guiding surface 1132. The insertion buckle 331 is received in the slot 112, and the second clamping portion 3312 abuts against the first clamping portion 1122 in the z-axis direction to achieve locking between the first plugging module 1 and the second plugging module 2. When the locking mechanism 3 moves in the x-axis direction under an external force, the second clamping portion 3312 is disengaged from the first clamping portion 1122. At the same time, the ejecting portion 332 lifts the first plugging module 1 under the action of the first guiding surface 1131 to complete the unlocking of the first plugging module 1 and the second plugging module 2.

[0064] Reference Figure 8 As shown, the locking mechanism 3 further includes a moving contact piece 34 provided between the locking piece 33 and the driving piece 32. The moving contact piece 34 is disposed on the surface of the locking piece 33 opposite to the ejecting portion 332 in the z-axis direction.

[0065] Reference Figure 9 and Figure 10 As shown, specifically, a gap 341 is provided at the installation position of the moving contact piece 34 between the locking piece 33 and the driving piece 32. The size of the gap 341 is slightly larger than the thickness of the moving contact piece 34. This design enables the moving contact piece 34 to still move slightly up and down after the moving contact piece 34 is installed.

[0066] On the surface of the driving piece 32 in contact with the locking piece 33, a boss 321 is provided at the installation position of the moving contact piece 34. A first limiting hole 342 is provided on the moving contact piece 34, and a second limiting hole 333 is provided on the locking piece 33 at the installation position. The boss 321 passes through between the first limiting hole 342 and the second limiting hole 333 so that the moving contact piece 34 is relatively fixed between the locking piece 33 and the driving piece 32. Thus, the driving piece 32 can drive the moving contact piece 34 to achieve lateral movement, which is consistent with the movement of the locking mechanism 3.

[0067] The movable contact piece 34 includes a fixed part 343 and a contact part 344. The contact part 344 extends from both ends of the fixed part 343 in the z-axis direction away from the ejecting part 332, so that part of the contact part 344 protrudes from the surface of the locking piece 33.

[0068] Specifically, a slot 334 is formed at a position on the locking piece 33 corresponding to the contact part 344 of the movable contact piece. The contact part 344 passes through the slot 334 and part of it protrudes from the surface of the locking piece 33.

[0069] The movable contact piece 34 is a resilient reed. The contact part 344 includes a sliding foot with a smooth arc surface. When the first plug-in module 1 is plugged into the second plug-in module 2, the sliding foot contacts the static contact piece on the circuit board 2121 in the second plug-in module 2, realizing the electrical conduction between the first connector 12 and the second connector 22.

[0070] In the above embodiment, this setting method can make the movable contact piece 34 receive less force during the initial assembly of the second plug-in module 2, which is more beneficial to protecting the elastic function of the movable contact piece 34 and ensuring the basic stability of the second plug-in module 2.

[0071] The movable contact piece 34 moves back and forth under the drive of the driving piece 32 and touches the static contact piece on the circuit board 2121 in the second plug-in module 2. When the static contact piece contacts the movable contact piece 34, the first connector 12 and the second connector 22 are energized. When the first plug-in module 1 is in the process of being inserted or lifted, the static contact piece is separated from the movable contact piece 34, and the signals of the first connector 12 and the second connector 22 are disconnected.

[0072] The number of static contact pieces is two. The static contact pieces and the second connector 22 are on the same PCBA. There is a circuit inside the PCBA that enables the two static contact pieces to be electrically connected to the second connector 22 respectively. However, in this circuit, the two static contact pieces are not electrically connected. The overall electrical conduction of the circuit is realized by the sliding feet at both ends of the movable contact piece contacting the two static contact pieces at the same time. Synchronously, the first connector 12 and the second connector 22 are also electrically connected when plugged. After the movable contact piece 34 contacts the static contact piece, a complete electrical conduction circuit is formed, thereby realizing the control of the energization of the second connector 22 and the first connector 12.

[0073] On both sides of the driving piece 32 in the x-axis direction, there are tension spring mounting grooves 322. A tension spring 31 is installed in the tension spring mounting grooves 322. One end of the tension spring 31 is connected to the driving piece 32, and the other end is connected to the bottom surface 2111 of the accommodating cavity, for enabling the locking mechanism 3 to return to its original position under the pulling force of the tension spring 31 after being displaced.

[0074] Reference Figure 11 and Figure 12As shown, the driver 32 has a support portion 323. The housing of the second plug-in module 2 has a socket 213 corresponding to the position of the support portion 323. By moving the support portion 323 through the socket 213, the locking mechanism 3 can be driven to move in the x-axis direction. The positions of the socket 213 and the support portion 323 are determined by the specific installation location of the first plug-in module 1. An external tool, such as a screwdriver, is inserted into the socket 213 and, by squeezing the support portion 323, the locking mechanism 3 is driven to move laterally.

[0075] In other embodiments of the present invention, the support portion 323 can pass through the socket 213 and partially protrude from the surface of the shell 21, and the socket 213 has a certain length in the x-axis direction, so that the support portion 323 moves along the x-axis direction under the action of external force, driving the locking mechanism 3 to move.

[0076] The modular plug-in structure of the present invention operates as follows:

[0077] When the first plug-in module 1 is inserted into the second plug-in module 2, in the locked state, the first ejection surface 3321 of the ejection portion 332 does not contact the groove 113 on the first end face 11 of the first plug-in module 1. The movable contact 34 contacts the stationary contact, and power is supplied to the first connector 12 and the second connector 22. A screwdriver is inserted into the socket 213 of the second plug-in module 2, and the end of the screwdriver presses against the support portion 323 to unlock the connector.

[0078] refer to Figure 11 and Figure 12 As shown, a screwdriver passes through the socket 213 of the second plug-in module 2 and abuts the support portion 321, causing the driving member 32 to move laterally, thereby driving the locking member 33 to move laterally. As a result, the latch 331 on the locking member 33 disengages from the latch hole 1121 of the slot 112, disengaging the movable contact 34 from the stationary contact. This de-energizes the first connector 12 and the second connector 22. The first ejection surface 3321 of the locking member 33 slides along the first guide surface 1131 of the groove 113, thereby ejecting the first plug-in module 1 from the second plug-in module 2. Since the first plug-in module 1 is not powered during the ejection process, no unstable signal is generated.

[0079] After the first plug-in module 1 is pushed out, the driving member 32 is restored to its original position under the tension of the tension spring 31 , and the moving contact piece 34 is connected to the static contact piece again.

[0080] When the first plugging module 1 is plugged onto the second plugging module 2 again, the second ejecting surface 3322 of the ejecting portion 332 contacts the second guiding surface 1132 of the groove 113. The second guiding surface 1132 presses the ejecting portion 332, causing the ejecting portion 332 to drive the locking mechanism 3 to move horizontally. The moving contact piece 34 disengages from the static contact piece. After the first connector 12 is stably in contact with the second connector 22, that is, when the first plugging module 1 is stably installed on the second plugging module 2, the second engaging portion 3312 of the plug buckle 331 engages with the first engaging portion 1122 of the slot 112, and the moving contact piece 34 is in contact with the static contact piece again, and the module is powered on.

[0081] In addition, after the first plugging module 1 is plugged onto the second plugging module 2, the tension spring 31 on the locking mechanism 3 is not fully reset. The tension spring 31 has a certain pulling force, which tightens the locking mechanism 3, thereby ensuring that the first plugging module 1 and the locking mechanism 3 are locked tightly.

[0082] Compared with the prior art, the module plugging and unplugging structure of the embodiment of the present invention has the following advantages:

[0083] (1) The insertion of the first plugging module is automatically locked by the plug buckle on the locking mechanism and the slot on the first plugging module, and the locking state is maintained by the pulling force provided by the tension spring, effectively reducing the operation steps, reducing the cost, and simultaneously reducing the risk of connection failure of the connector caused by non-locking.

[0084] (2) Through the movable locking mechanism and the ejecting portion thereon, the longitudinal movement of the first plugging module is converted into the lateral movement of the locking mechanism to perform automatic ejection of the first plugging module. Moreover, the force is balanced during the conversion process, which can effectively reduce the operation steps, reduce the cost, and achieve efficient plugging between the module (the first plugging module) and the connector or the base (the second plugging module).

[0085] (3) By moving the moving contact piece to contact or separate from the static contact piece, the electrical conduction between the two plugging modules is controlled, which can effectively solve the problem of unstable connection signals or error signals generated during the module plugging process.

[0086] (4) The locking mechanism uses a combination of two parts (the locking part and the driving part), effectively improving the strength of the locking mechanism. One part (the driving part) controls the movement, and one part (the locking part) controls self-locking and ejection unlocking. This combination can better realize the realization of multiple functions of sliding and self-locking / unlocking.

[0087] (5) The locking mechanism and the second plugging module are connected by two tension springs, which can make the locking mechanism receive uniform force during sliding, and simultaneously obtain greater force to meet the locking requirements.

[0088] (6) Unlock and eject the first plug-in module through the locking mechanism, which can meet the synchronous detachment and lifting of up to 96-pin three-row plug-in modules.

[0089] (7) The plugging and unplugging structure of this module is a power-on and power-off mechanism applicable to gas corrosion environments, so as to achieve the functions of redundant IO modules inserting first and then powering on, and powering off first and then being taken out.

[0090] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the invention, as well as various different selections and changes. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A module plugging and unplugging structure, characterized in that, Comprising: A first plugging module having a first end face, on which there are oppositely arranged slots. The slots have first latching portions arranged in a first direction. There are also several grooves recessed on the first end face. Each groove has oppositely arranged first guiding surfaces and second guiding surfaces along the first direction respectively. A second plugging module including a housing on which there is a receiving cavity for receiving the first plugging module. And A locking mechanism elastically connected to the housing in the first direction and movable relative to the receiving cavity in the first direction. The locking mechanism includes a latch matching with the slot and an ejecting portion matching with the groove. Both the latch and the ejecting portion are located in the receiving cavity. The latch has a second latching portion arranged in the first direction and cooperating with the first latching portion. During the plugging process of the first plugging module and the second plugging module, the ejecting portion drives the locking mechanism to move relative to the receiving cavity in the first direction under the action of the second guiding surface. The latch is received in the slot and the second latching portion abuts against the first latching portion in the plugging direction, realizing the locking of the first plugging module and the second plugging module. When the locking mechanism moves in the first direction under an external force, the second latching portion disengages from the first latching portion. At the same time, the ejecting portion jacks up the first plugging module under the action of the first guiding surface, completing the unlocking of the first plugging module and the second plugging module. A first connector is fixed on the first end face, and a second connector is fixed in the receiving cavity. When the first plugging module and the second plugging module are plugged, the first connector can be electrically connected to the second connector. The locking mechanism includes a driving member and a locking member fixedly stacked. The locking member is provided with a latch matching with the slot and an ejecting portion matching with the groove. The locking mechanism further includes a moving contact piece arranged between the locking member and the driving member. The moving contact piece includes a fixing portion and a contacting portion. The fixing portion of the moving contact piece is configured to be between the driving member and the locking member, and the contacting portion extends away from the ejecting portion along the plugging direction from both ends of the fixing portion. There is a gap at the installation position of the moving contact piece between the locking member and the driving member, and the size of the gap is greater than or equal to the thickness of the fixing portion of the moving contact piece. A slot hole is opened at a position on the locking member corresponding to the contacting portion of the moving contact piece, and the contacting portion passes through the slot hole and partially protrudes from the surface of the locking member. A circuit board is arranged in the housing of the second plugging module, and a static contact piece is arranged at a predetermined position on the circuit board. The contacting portion of the moving contact piece is in contact with the static contact piece in the locked state, and the first connector and the second connector are electrically conducted. The contacting portion of the moving contact piece is separated from the static contact piece during the unlocking process, and the first connector and the second connector are not powered on.

2. The module plugging and unplugging structure according to claim 1, wherein The moving contact piece is arranged on a surface of the locking mechanism opposite to the ejecting portion in the plugging direction.

3. The module plugging and unplugging structure according to claim 1, characterized in that, The fixing portion is arranged on the locking mechanism through a connecting piece.

4. The module plugging and unplugging structure according to claim 3, wherein The connecting member includes a boss arranged at the installation position, a first limiting hole is provided on the fixing portion of the movable contact piece, a second limiting hole is provided on the locking member and at the installation position, and the boss is passed between the first limiting hole and the second limiting hole to relatively fix the movable contact piece, the locking member and the driving member.

5. The module plugging and unplugging structure according to claim 1, wherein The movable contact piece is an elastic spring piece, the contact portion includes a sliding foot with a smooth arc surface, and the movable contact piece can be abutted against the locking mechanism under the action of the second plug-in module.

6. The module plugging and unplugging structure according to claim 1, wherein, The locking mechanism is further provided with a supporting portion, and a socket corresponding to the position of the supporting portion is provided on the housing of the second plug-in module. The supporting portion is moved through the socket to drive the locking mechanism to move in the first direction.

Images