CN114552311B - Safety frame with module power switch - Google Patents
Safety frame with module power switch Download PDFInfo
- Publication number
- CN114552311B CN114552311B CN202210091089.1A CN202210091089A CN114552311B CN 114552311 B CN114552311 B CN 114552311B CN 202210091089 A CN202210091089 A CN 202210091089A CN 114552311 B CN114552311 B CN 114552311B
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- CN
- China
- Prior art keywords
- switch
- module
- socket
- plug
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012212 insulator Substances 0.000 claims description 39
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a safety rack with a module power switch, which comprises a chassis, a plurality of modules assembled in the chassis and a printed board fixed below a chassis bottom plate, wherein the printed board distributes power for a socket on the chassis bottom plate through a plurality of module power circuits distributed on the printed board; when the module is inserted, the push rod of the module switch compresses the elastic reset body to move to the closed position under the pushing of the module, and when the module is inserted in place, the module switch is in the closed state, and the corresponding module power circuits are communicated. Before the module is inserted, the socket is not electrified, and after the module is inserted, the push rod of the switch of the module is pressed, so that the switch is closed to supply power to the module, and the module is prevented from being plugged in and pulled out in an electrified mode.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a safety frame with a module power switch.
Background
The rack is widely applied as a modular connector, and the power distribution of the rack is realized by connecting an external inlet wire (+), an external inlet wire (-) to a power main switch of the rack, connecting an internal lead to a backboard at the bottom of a chassis of the rack; and finally, distributing the power supply to the contact pieces of all the sockets at the bottom of the chassis of the rack through copper-clad printed wires inside the backboard. The end parts of the modules assembled in the chassis of the rack are provided with plugs, and the plugs are connected with sockets in the chassis to supply power to the modules.
However, the above power supply scheme has the following drawbacks: 1) Live plug and arc discharge may cause safety accidents and damage to the contact. In the working process of the rack, once the power supply main switch is closed, the +poles and the-poles of all the sockets are powered, the module is equivalent to electric equipment, if the switch of the module is in a closed state at the moment, in the inserting process, the current is powered on the module through the socket and the plug, the current is suddenly changed, and the current is suddenly changed from 0 to the maximum, namely: the contact is easily damaged by charged insertion and arc discharge. Similarly, during the module extraction process, the current is changed from maximum to 0, and arcing discharge is also very easy to occur, so that the contact is damaged.
2) The contacts of the socket are charged and may get an electric shock if the finger touches. If the metal foreign matters are short-circuited in +pole and-pole, discharge and arc are easily generated, and fire disaster is caused.
Disclosure of Invention
In order to solve the above problems, the present invention provides a safety rack with a module power switch, which adds a normally closed switch or a switch connector on a +pole circuit of a power circuit corresponding to each socket on a back plate, and a push rod of the normally closed switch or the switch connector extends into a chassis, so that the normally closed switch or the switch connector can be synchronously closed under the pushing of the module when the module is inserted, and is synchronously opened when the module is separated.
The aim and the technical problems of the invention are realized by adopting the following technical proposal. The invention provides a safety rack with a module power switch, which comprises a chassis, a plurality of modules assembled in the chassis and a printed board fixed below a chassis bottom plate, wherein the printed board supplies power to sockets on the chassis bottom plate, which are matched with the modules, through a plurality of module power circuits distributed on the printed board; when the module is inserted, the push rod of the module switch compresses the elastic reset body to move to the closed position under the pushing of the module, and when the module is inserted in place, the module switch is in the closed state, and the corresponding module power circuits are communicated.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
The safety frame with the module power switch is connected to the positive electrode power circuit of the single module power circuit.
The safety frame with the module power switch comprises a base, a push rod and a reset spring, wherein two binding posts are fixed on the base, two contacts are arranged on the push rod, the reset spring is fixed between the base and the push rod, and tail parts of the two binding posts are connected to a +pole power circuit of the module power circuit.
The safety rack with the module power switch is a switch type connector, the switch type connector comprises a switch plug and a switch socket, the front end of the switch plug is plugged in, the tail of a contact piece in the switch plug is conducted, the switch plug and the switch socket are kept in a disconnected state under the action of an elastic reset body, and the push rod is positioned on the switch plug.
The safety rack with the module power switch is characterized in that axial limit is realized between the switch plug and the switch socket through cooperation of the clamping table and exploitation, so that the switch plug and the switch socket are prevented from being separated from each other under the action of the elastic reset body, and the length of the clamping groove meets the requirement of relative movement of the switch plug and the switch socket during insertion.
The safety rack with the module power switch comprises a socket insulator and two pins fixed in the socket insulator, wherein at least two connecting pieces extending along the axial direction are further arranged on the socket insulator, the elastic resetting bodies are positioned in the socket insulator and distributed along the connecting pieces, and the connecting pieces penetrate through positioning holes at the front end of the switch plug to fix the switch connector on a bottom plate of a machine box.
The safety rack with the module power switch comprises a plug insulator at the front end and a push rod at the rear end, wherein two jacks communicated with the tail are arranged in the plug insulator, the push rod comprises a plugging part at the front end and a force application part at the rear end, two positioning holes are symmetrically distributed on two sides of the plugging part, and the force application part can penetrate through a chassis bottom plate to extend into the chassis.
In the aforementioned safety rack with the module power switch, the clamping table is arranged on the periphery of the plugging part, and the socket insulator is provided with a corresponding clamping groove.
The safety frame with the module power switch is characterized in that the push rod and the plug insulator are matched through the clamping table and the clamping groove to realize connection positioning.
The safety frame with the module power switch, wherein the part of the tail part of the contact pin extending out of the socket insulator is bent twice and then extends along the axial direction of the socket insulator and is supported on a supporting table on the socket insulator, and the supporting table is also provided with a groove for preventing the contact pin from deflecting.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention can achieve quite technical progress and practicability, has wide industrial application value, and has at least the following advantages:
The invention adds at least one separate normally closed switch or switch-type connector to the + pole circuit of a single module. This may be accomplished by the "+ pole" of the receptacle being unpowered and the "-pole" being powered prior to insertion of the module. After the module is inserted, the module presses the push rod of the switch or the switch type connector to realize the closing of the switch or the contact of the contact pin of the switch type connector with the jack, so as to supply power to the module. Therefore, in the module inserting process, even if a switch of the module is in a closed state, a module power circuit is not communicated, current is not generated between a plug and a socket of the module, and arc discharge and contact damage are not caused.
Drawings
FIG. 1 is a circuit diagram of a power distribution circuit of a safety chassis with a modular power switch of the present invention;
FIG. 2 is a schematic diagram of a module switch of a safety housing with a module power switch according to embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of the open state of a module switch of a safety housing with a module power switch according to embodiment 2 of the present invention;
FIG. 4 is a schematic diagram showing a closed state of a module switch of a safety housing with a module power switch according to embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of a safety housing with a modular power switch according to embodiment 2 of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a bottom view of FIG. 5;
FIG. 8 is a cross-sectional view of FIG. 5;
fig. 9 is a sectional view showing a state in which a safety housing having a module power switch according to embodiment 2 of the present invention is plugged in.
[ Main element symbols description ]
1: Case (S)
2: Module
3: Bottom plate
4: Printed board
5: Main switch of power supply
6: Module switch
7: Base seat
8: Binding post
9: Reset spring
10: Contact point
11: Push rod
12: Socket insulator
13: Contact pin
14: Connecting rod
15: Elastic resetting body
16: Push rod insulator
17: Plug insulator
18: Jack (Jack)
19: Conducting wire
20: Clamping table
21: Clamping groove
22: Flat gasket
23: Spring gasket
24: Positioning hole
25: Supporting table
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following detailed description refers to the specific implementation, structure, characteristics and effects of the safety rack with the module power switch according to the invention with reference to the accompanying drawings and the preferred embodiments.
Referring to fig. 1-9, which are schematic structural views of each part of a safety rack with a module power switch according to the present invention, the rack includes a chassis 1 and a plurality of modules 2 assembled in the chassis, plugs are disposed at ends of the modules 2, and sockets adapted to the plugs of the modules 2 are disposed on a bottom plate 3 of the chassis 1. The lower part of the bottom plate 3 of the chassis 1 is also provided with a printed board 4 for connecting with each socket connector, the printed board 4 is connected with a power main switch 5 fixed on the chassis through an internal lead, and the power main switch 5 is connected with an external inlet wire so as to introduce an external power supply.
The printed board 4 distributes the power introduced by the power switch 5 to the sockets of each module through each module power circuit in the printed board 4, the printed board 4 is also provided with a module switch 6 for controlling the on-off of each module power circuit, the module switch 6 is a normally closed switch, and is provided with a reset piece for keeping the switch in an off state and a push rod for driving the switch to be closed, when the module 2 is inserted into the chassis 1, the push rod of the module switch 6 passes through the bottom plate 3 and even the chassis 1, and at the moment, the module switch is in the off state, and the power circuit of the corresponding module socket is disconnected; when the module 2 is inserted into the chassis 1, the push rod of the module switch 6 compresses the reset piece under the pushing of the module 2, when the module 2 is inserted in place, the module switch 6 is in short circuit, the power circuit where the module switch 6 is positioned is closed, and current is generated between the socket and the plug; the module switch 6 can realize independent control of each module power supply and prevent electric arcs generated by live plugging.
In the embodiment of the present invention, the module switch 6 is located on the +pole power supply circuit of the single module, but is not limited thereto.
In embodiment 1 of the present invention, the module switch 6 is a normal normally closed switch, and includes a base 7, two terminals 8 fixed on the base 7, a push rod 11, a return spring 9 fixed between the push rod 11 and the base 7, and two contacts 10 fixed on the push rod 11. In the embodiment, the base 7 is fixed on the chassis bottom plate 3, the push rod 11 penetrates through the bottom plate 3 to extend into the chassis under the action of the reset spring 9, and the tail part of the binding post 8 is connected to a positive electrode circuit of the module power supply circuit; when the module 2 is inserted into the chassis 1, the push rod 11 compresses the reset spring 9 to move towards the base 7 under the action of the module 2, when the module 2 is inserted in place, the contact 10 is contacted with the binding post 8, the module switch 6 is short-circuited, and the module power circuit is conducted. In the embodiment of the invention, the module switch 6 can close short circuit only when the module 2 is plugged in place, so that the conduction of the module power supply circuit is realized, and the embodiment has the function of controlling the module power supply circuit to prevent live plugging and unplugging and also has the function of identifying the plugged module in place.
In embodiment 2 of the present invention, the module switch 6 is a switch-type connector, and the switch-type connector includes a switch plug and a switch socket that are plugged at the front end, wherein an elastic reset body 15 that provides a separating force for the switch plug and the switch socket is disposed between the switch plug and the switch socket, the switch plug and the switch socket are kept in a disconnected state under the action of the elastic reset body 15, and an axial limit is implemented between the switch plug and the switch socket by matching the clamping table 20 and the clamping slot 21, so as to prevent the switch plug and the switch socket from being separated from each other, and the length of the clamping slot 21 is not less than the moving distance of the switch plug and the switch socket during plugging. Two contact pins 13 are arranged in the socket insulator 12 of the switch socket, and the tail parts of the contact pins 13 extend out of the socket insulator 12 and are connected with a positive electrode circuit of a module power supply circuit on the printed board 4. The switch plug comprises two jacks 18 for adapting to the contact pins 12, and the tail parts of the two jacks 18 are communicated, so that when the plug 12 is plugged into the jacks 18, the switch type connector is in a short circuit state, and a module power circuit is conducted. In this embodiment, the tail portions of the two insertion holes 18 are conducted through the wires 19, but is not limited thereto.
In this embodiment, at least two axially extending connecting elements 14 are also provided on the socket insulator 12, by means of which connecting elements 14 the fastening of the switch-type connector to the base plate 3 is achieved. The elastic restoring body 15 is a spring, and two elastic restoring bodies are respectively sleeved on one connecting piece 14, and a flat gasket 22 and a spring gasket 23 are further arranged between the connecting piece 14 and the rear end face of the socket insulator 12 so as to prevent the connecting piece 14 from loosening in a vibration environment. In this embodiment, the connecting member 14 is a screw, but is not limited thereto.
The switch plug includes a plug insulator 17 at a front end and a push rod insulator 16 at a rear end, wherein the jack 18 and the wire 19 are fixed in the plug insulator 17, and the plug insulator 17 and the push rod 16 are detachably connected through a clamping table and a clamping groove in this embodiment, but not limited thereto.
The push rod insulator 17 comprises a plugging part at the front end and a force application part at the rear end, wherein the periphery of the plugging part is provided with a clamping table 20, two sides of the plugging part are also provided with positioning holes 24 for the connecting pieces 14 to pass through, when the switch connector is fixed, the rear end face of the plugging part is contacted with the end face of the bottom plate 3, the force application part passes through the bottom plate 3 and even the chassis, when the module is installed, the push rod insulator 17 moves to one side of the socket insulator under the pushing of the module 2 and is synchronously plugged with the connector in the chassis, so that the independent control of each module power supply is realized, and the live plugging is prevented.
In this embodiment, in order to facilitate the soldering of the pins 13 to the printed board 4, the tail portions of the pins 13 are bent twice and then finally extend along the axial direction of the socket insulator 5, and are soldered perpendicularly to the printed board 4. That is, in this embodiment, the entire contact pin 13 has a U-shaped structure. In order to ensure the welding reliability between the pin 13 and the printed board 4 and prevent the tail of the pin 13 from swinging, a supporting table 25 for supporting the tail of the pin 13 along the axial extension of the socket insulator is further arranged outside the socket insulator 5, and two grooves for accommodating the pin 13 and limiting the deflection of the pin 13 are arranged on the supporting table 25, and the pin 13 is limited in the grooves.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a safety frame with module switch, its includes quick-witted case, assembles a plurality of modules in quick-witted incasement and fixes the printed board below the machine case bottom plate, and this printed board distributes the power for the socket on the machine case bottom plate through a plurality of module power circuits that distribute on it, its characterized in that: a plurality of module switches for controlling the on-off of a single module power circuit are also fixed below the chassis base plate, one end of each module switch is fixed on the printed board, and when a module is not inserted, a push rod at the other end of each module switch penetrates through the chassis base plate to extend into the chassis under the drive of the elastic reset body, and at the moment, the module switch is kept in an off state; when the module is inserted, the push rod of the module switch compresses the elastic reset body to move to the closed position under the pushing of the module, and when the module is inserted in place, the module switch is in the closed state, and the corresponding module power circuits are communicated.
2. The safety frame with a modular power switch of claim 1, wherein: wherein the module switch is connected to the + pole circuit of the single module power supply circuit.
3. The safety frame with a modular power switch of claim 2, wherein: the module switch comprises a base, a push rod and a reset spring, wherein two binding posts are fixed on the base, two contacts are arranged on the push rod, the reset spring is fixed between the base and the push rod, and tail parts of the two binding posts are connected to a positive electrode circuit of the module power supply circuit.
4. The safety frame with a modular power switch of claim 2, wherein: the module switch is a switch type connector, the switch type connector comprises a switch plug and a switch socket, the front ends of the switch plug and the switch socket are inserted in opposite directions, the tail parts of two contact pieces in the switch plug are conducted, the switch plug and the switch socket are kept in an off state under the action of an elastic reset body, and the push rod is positioned on the switch plug.
5. The safety frame with a modular power switch of claim 4, wherein: the switch plug and the switch socket are axially limited by the cooperation of the clamping table and the clamping groove, so that the switch plug and the switch socket are prevented from being separated from each other under the action of the elastic resetting body, and the length of the clamping groove meets the requirement of relative movement of the switch plug and the switch socket during insertion.
6. The safety frame with a modular power switch of claim 5, wherein: the switch socket comprises a socket insulator and two contact pins fixed in the socket insulator, the elastic reset body is positioned in the socket insulator, at least two connecting pieces extending along the axial direction are further arranged on the socket insulator, and the connecting pieces penetrate through positioning holes on the switch plug to fix the switch connector on a chassis base plate.
7. The safety frame with a modular power switch of claim 6, wherein: the switch plug comprises a plug insulator at the front end and a push rod at the rear end, two jacks communicated with the tail are arranged in the plug insulator, the push rod comprises a plugging part at the front end and a force application part at the rear end, two sides of the plugging part are respectively provided with a positioning hole, and the force application part can penetrate through a chassis bottom plate to extend into the chassis under the action of an elastic reset body.
8. The safety frame with a modular power switch of claim 7, wherein: the periphery of the inserting part is provided with a clamping table, and the socket insulator is provided with a corresponding clamping groove.
9. The safety frame with a modular power switch of claim 7, wherein: the push rod and the plug insulator are connected and positioned through the cooperation of the clamping table and the clamping groove.
10. The safety frame with a modular power switch of claim 5, wherein: the part of the tail part of the contact pin, which extends out of the socket insulator, is bent, axially extends along the socket insulator and is supported on a supporting table on the socket insulator, and a groove for preventing the contact pin from deflecting is further formed in the supporting table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210091089.1A CN114552311B (en) | 2022-01-26 | 2022-01-26 | Safety frame with module power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210091089.1A CN114552311B (en) | 2022-01-26 | 2022-01-26 | Safety frame with module power switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114552311A CN114552311A (en) | 2022-05-27 |
| CN114552311B true CN114552311B (en) | 2024-06-25 |
Family
ID=81673928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210091089.1A Active CN114552311B (en) | 2022-01-26 | 2022-01-26 | Safety frame with module power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114552311B (en) |
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| CN201160179Y (en) * | 2007-11-09 | 2008-12-03 | 富士康(昆山)电脑接插件有限公司 | Coaxial connector |
| CN201536461U (en) * | 2009-11-04 | 2010-07-28 | 中国北车股份有限公司大连电力牵引研发中心 | Control chassis |
| EP2566181A1 (en) * | 2011-08-31 | 2013-03-06 | 3M Innovative Properties Company | Functional module for a telecommunication strip for a telecommunications system |
| DE102011081977A1 (en) * | 2011-09-01 | 2013-03-07 | Endress + Hauser Process Solutions Ag | Plug for use with socket for connecting Ethernet cables, has housing receiving electrical plug-in contact and comprising internal and external screw threads for moving electrical plug-in contact along longitudinal axis of housing |
| JP5523416B2 (en) * | 2011-09-07 | 2014-06-18 | 茂治郎 清水 | Connector for energization |
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| TW201608587A (en) * | 2014-08-28 | 2016-03-01 | jin-xiong Chu | Pressing type switch |
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| CN113571977A (en) * | 2021-07-01 | 2021-10-29 | 中国电力科学研究院有限公司 | Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof |
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| CN214205935U (en) * | 2020-08-10 | 2021-09-14 | 北京硅基远航科技有限公司 | Server and circuit board thereof |
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| CN215008801U (en) * | 2021-03-23 | 2021-12-03 | 高邮市德尔门特电器厂 | Electric vehicle charger socket |
Also Published As
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| CN114552311A (en) | 2022-05-27 |
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