CN220440168U - Drawer type switch cabinet and electrical equipment - Google Patents
Drawer type switch cabinet and electrical equipment Download PDFInfo
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- CN220440168U CN220440168U CN202321416932.5U CN202321416932U CN220440168U CN 220440168 U CN220440168 U CN 220440168U CN 202321416932 U CN202321416932 U CN 202321416932U CN 220440168 U CN220440168 U CN 220440168U
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- 238000004891 communication Methods 0.000 claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 45
- 101710170230 Antimicrobial peptide 1 Proteins 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Abstract
The utility model discloses a drawer type switch cabinet and electrical equipment, comprising: the cabinet body is provided with a plurality of unit cells, light-transmitting areas which are communicated from top to bottom are arranged among the unit cells, and pluggable switch drawers are arranged in the unit cells; the optical communication modules are respectively arranged at the top and the bottom of the switch drawer and are positioned in the light transmission area; the external communication interface is positioned at the top of the cabinet body and is connected with the communication interface of the switch drawer of the uppermost Fang Shanyuan grid; the shading device is movably arranged on the front face of the cabinet body. The switch drawers do not need wiring, are simple to install, debug and maintain, solve the problem that the communication above and below is invalid after any switch drawer fails, and the front side of the cabinet body is provided with the shading device, so that the external world can be prevented from entering the cabinet body through the front gap of the switch drawer to influence the receiving of optical signals, and the reliability of the communication in the cabinet is ensured.
Description
Technical Field
The utility model relates to the field of switch cabinets, in particular to a drawer type switch cabinet and electrical equipment.
Background
The drawer type switch cabinet is a switch cabinet in which electrical components of an access line loop are all installed in a extractable drawer, the drawer type switch cabinet is suitable for industrial and mining enterprises and high-rise buildings with high power supply reliability, as a centralized control power distribution center, along with the development of power distribution technology, more and more electric energy collection and intelligent monitoring equipment in each switch drawer switch cabinet are provided at present, data transmission is carried out between adjacent drawers and between the drawers and external equipment through cabling, so that complicated and messy wiring in the switch cabinet is caused, installation and debugging are inconvenient, and when any drawer is extracted and overhauled due to faults, communication is interrupted between the drawers above and below the drawer, and the integral data collection and monitoring of the switch cabinet are affected. Some manufacturers consider that wireless communication modules such as bluetooth, WIFI and optical communication are adopted to transmit data between drawers, however, the wireless communication modules such as bluetooth or WIFI are easily interfered by external electromagnetic signals and internal electromagnetic signals, and the optical communication modules are easily affected by natural light injected between gaps of the drawers, which can affect communication quality.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the drawer type switch cabinet and the electrical equipment provided by the utility model adopt optical communication to transmit data, wiring is not needed, any drawer is drawn out, communication among drawers in the switch cabinet is not influenced, and meanwhile, the drawer type switch cabinet is not influenced by external natural light.
An embodiment of a drawer type switch cabinet according to a first aspect of the present utility model includes: the cabinet body is provided with a plurality of cells, light-transmitting areas which are communicated from top to bottom are arranged among the cells, pluggable switch drawers are arranged in the cells, and internal communication interfaces are arranged in the switch drawers and used for connecting internal electric energy collection monitoring equipment; the optical communication modules are respectively arranged at the top and the bottom of the switch drawer and positioned in the light transmission area, and are connected with communication interfaces corresponding to the inside of the switch drawer; the external communication interface is positioned at the top of the cabinet body and is connected with the communication interface of the switch drawer of the uppermost Fang Shanyuan grid; the shading device is movably arranged on the front face of the cabinet body and used for shading light.
The drawer type switch cabinet provided by the embodiment of the first aspect of the utility model has at least the following beneficial effects:
according to the embodiment of the utility model, the light transmission areas which are communicated from top to bottom are formed among the unit grids, the optical communication modules are arranged at the top and the bottom of each switch drawer, the adjacent switch drawers realize data transmission through the optical communication modules opposite to the light transmission areas, the uppermost switch drawer is used for integrating the data of all the switch drawers in the switch cabinet and then communicating with external equipment through the external communication interfaces at the top of the cabinet body, so that the data interaction between the inside and outside of the cabinet is realized, wiring is not needed between the switch drawers, the installation, the debugging and the maintenance are simple, the interaction of optical communication between the upper switch drawer and the lower switch drawer can still be realized through the light transmission areas after any switch drawer is pulled out, the problem that the communication between the upper side and the lower side of the switch drawer fails after any switch drawer fails is solved, and in addition, the front of the cabinet body is provided with the shading device, the influence on the light signal receiving caused by the outside entering the cabinet body through the gaps at the front of the switch drawers is avoided, and the reliability of the communication in the cabinet is ensured.
According to some embodiments of the utility model, the partition boards of the cells are all provided with light holes, and all the light holes are located on the same vertical line.
According to some embodiments of the utility model, the optical communication module comprises an optical signal transmitting module, an optical signal receiving module, an MCU, a pre-emphasis transmitting circuit and a post-equalization receiving circuit, wherein the MCU is connected with the input end of the pre-emphasis transmitting circuit, the output end of the pre-emphasis transmitting circuit is connected with the input end of the optical signal transmitting module, the output end of the optical signal receiving module is connected with the input end of the post-equalization receiving circuit, and the output end of the post-equalization receiving circuit is connected with the MCU.
According to some embodiments of the utility model, the optical signal transmitting module comprises an infrared laser diode and a driving circuit, and an output end of the pre-emphasis transmitting circuit is connected with the infrared laser diode through the driving circuit.
According to some embodiments of the utility model, the optical signal receiving module includes a photodiode and a low noise amplifier, and the photodiode is connected to an input terminal of the post-equalization receiving circuit through the low noise amplifier.
According to some embodiments of the present utility model, the pre-emphasis transmitting circuit includes a triode Q1, a triode Q2, a resistor R1, a resistor R2, a capacitor C1 and a capacitor C2, the MCU is connected to the base of the triode Q1 through a capacitor C3, the emitter of the triode Q1 is grounded through a resistor R8, the emitter of the triode Q1 is grounded through a resistor R1 and a capacitor C1 sequentially connected in series, the collector of the triode Q1 is connected to a power supply terminal VCC through a resistor R6, the collector of the triode Q1 is connected to the base of the triode Q2 through a capacitor C4, the emitter of the triode Q2 is grounded through a resistor R12, the emitter of the triode Q2 is grounded through a resistor R2 and a capacitor C2 sequentially connected in series, the collector of the triode Q2 is connected to the power supply terminal VCC through a resistor R10, and the collector of the triode Q2 is connected to the optical signal transmitting module.
According to some embodiments of the present utility model, the post-equalization receiving circuit includes a capacitor C22, a capacitor C25, a resistor R21, a resistor R23, and a differential amplifier AMP1, an output positive electrode of the optical signal receiving module is connected to a non-inverting terminal of the differential amplifier AMP1 through the capacitor C21, the resistor R21, and the resistor R22 which are sequentially connected in series, the capacitor C22 is connected in parallel to two ends of the resistor R21, an output negative electrode of the optical signal receiving module is connected to an inverting terminal of the differential amplifier AMP1 through a capacitor C24, a resistor R23, and a resistor R24 which are sequentially connected in series, the capacitor C25 is connected in parallel to two ends of the resistor R23, and an output terminal of the differential amplifier AMP1 is connected to the MCU through the capacitor C23 and the capacitor C26, respectively.
According to some embodiments of the utility model, the shade device is a visor or a blind.
According to some embodiments of the utility model, the external communication interface is an aviation plug.
An electrical device according to an embodiment of the second aspect of the utility model comprises a drawer-type switch cabinet as described above.
The electrical device according to the embodiment of the second aspect of the utility model has at least the following advantages:
according to the embodiment of the utility model, the light transmission areas which are communicated from top to bottom are formed among the unit grids, the optical communication modules are arranged at the top and the bottom of each switch drawer, the adjacent switch drawers realize data transmission through the optical communication modules opposite to the light transmission areas, the uppermost switch drawer is used for integrating the data of all the switch drawers in the switch cabinet and then communicating with external equipment through the external communication interfaces at the top of the cabinet body, so that the data interaction between the inside and outside of the cabinet is realized, wiring is not needed between the switch drawers, the installation, the debugging and the maintenance are simple, the interaction of optical communication between the upper switch drawer and the lower switch drawer can still be realized through the light transmission areas after any switch drawer is pulled out, the problem that the communication between the upper side and the lower side of the switch drawer fails after any switch drawer fails is solved, and in addition, the front of the cabinet body is provided with the shading device, the influence on the light signal receiving caused by the outside entering the cabinet body through the gaps at the front of the switch drawers is avoided, and the reliability of the communication in the cabinet is ensured.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic diagram of an internal structure of a drawer type switch cabinet according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a drawer-type switch cabinet according to an embodiment of the present utility model;
FIG. 3 is a top view of a spacer between cells in an embodiment of the utility model;
FIG. 4 is a schematic block diagram of an optical communication module according to an embodiment of the present utility model;
FIG. 5 is a schematic circuit diagram of a pre-emphasis transmit circuit in accordance with an embodiment of the present utility model;
fig. 6 is a schematic circuit diagram of a post-equalization receiving circuit according to an embodiment of the present utility model.
Reference numerals:
the cabinet body 100, the switch drawer 110, the internal communication interface 111, the partition plate 120, the light hole 121, the optical communication module 200, the optical signal transmitting module 210, the optical signal receiving module 220, the MCU230, the pre-emphasis transmitting circuit 240, the post-equalization receiving circuit 250, the external communication interface 300 and the shading device 400.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 and 2, a drawer type switch cabinet, comprising: the cabinet body 100, a plurality of optical communication modules 200, external communication interfaces 300 and shade 400, wherein, a plurality of cells have been seted up on the cabinet body 100, pluggable switch drawer 110 has been placed respectively in every cell, be provided with inside communication interface 111 in switch drawer 110 in order to be used for connecting inside electric energy collection supervisory equipment, top-down through light transmission area has been seted up between the cell, a plurality of optical communication modules 200 set up respectively in the top and the bottom of switch drawer 110 and all are located the regional place of light transmission area, optical communication module 200 links to each other with the inside communication interface 111 of corresponding switch drawer 110, when the adjacent switch drawer 110 is installed in the cell, the optical communication module 200 of upper switch drawer 110 bottom can correspond with the optical communication module at below switch drawer 110 top, establish the communication link through mutual light receiving and transmitting, the transmission electric energy data, external communication interface 300 is located the top of cabinet body 100 and with the inside communication interface of the switch drawer 110 of Fang Shanyuan check, only the switch drawer 110 of top need be through the cable connection top to the external communication interface 300, all be through the optical communication drawer 200 to realize that the other communication data transmission links are passed through to other communication devices through the switch drawer 110 after the optical communication drawer 110 is all to other switch drawers. In order to facilitate the pulling and inserting, the unit cell can be made larger than the switch drawer 110, and external lamplight or natural light can be taken in from the gaps on the front face of the unit cell of the cabinet body after the unit cell is installed, so that the light shielding device 400 is movably installed on the front face of the cabinet body 100, light is shielded, and the influence of external light on the transmission of the optical signals in the cabinet is avoided.
According to the embodiment of the utility model, the light transmission areas which are communicated from top to bottom are formed among the unit cells, the optical communication modules 200 are arranged at the top and the bottom of each switch drawer 110, the adjacent switch drawers 110 realize data transmission through the optical communication modules 200 opposite to the light transmission areas, the uppermost switch drawer 110 is used for integrating the data of all the switch drawers 110 in the switch cabinet and then communicating with external equipment through the external communication interface 300 at the top of the cabinet body 100, so that the data interaction between the inside and outside of the cabinet is realized, wiring is not needed between the switch drawers 110, the installation, the debugging and the maintenance are simple, and after any switch drawer 110 is pulled out, the optical communication interaction between the upper switch drawer 110 and the lower switch drawer 110 can still be realized through the light transmission areas, the problem that the communication between the upper side and the lower side of any switch drawer 110 fails after the failure is solved, and the shading device 400 is arranged on the front of the cabinet body 100, the influence on the light signal receiving of the cabinet body 100 caused by the external entering the cabinet body 100 through the gaps on the front side of the switch drawers 110 is avoided, and the reliability of the communication in the cabinet is ensured.
Referring to fig. 3, the light-transmitting area of the embodiment of the present utility model adopts the following design: the same position of each partition board 120 of each unit cell is provided with one light hole 121, so that all the light holes 121 are positioned on the same vertical line to form a light transmission area which is penetrated from top to bottom, thus, light signals are only transmitted in the light transmission area, other parts of the partition boards can also play a role of blocking light, only signals sent by corresponding light communication modules are ensured between two switch drawers 110, and the reliability of signal receiving is improved.
Specifically, referring to fig. 4, in the embodiment of the present utility model, the optical communication module 200 includes an optical signal transmitting module 210, an optical signal receiving module 220, an MCU230, a pre-emphasis transmitting circuit 240 and a post-equalization receiving circuit 250, where the cpu 230 is connected to an input end of the pre-emphasis transmitting circuit 240, an output end of the pre-emphasis transmitting circuit 240 is connected to an input end of the optical signal transmitting module 210, an output end of the optical signal receiving module 220 is connected to an input end of the post-equalization receiving circuit 250, and an output end of the post-equalization receiving circuit 250 is connected to the MCU230. In order to improve the bandwidth, the present embodiment modulates the signal output by the MCU through the pre-emphasis transmitting circuit 240, compensates the high frequency component of the output signal through the pre-emphasis transmitting circuit 240, improves the effective bandwidth of the transmitting end, and improves the effective bandwidth of the receiving end through the post-equalization receiving circuit 250.
Specifically, referring to fig. 5, in the embodiment of the present utility model, the pre-emphasis transmitting circuit 240 includes a triode Q1, a triode Q2, a resistor R1, a resistor R2, a capacitor C1 and a capacitor C2, where the MCU230 is connected to the base of the triode Q1 through a capacitor C3, the emitter of the triode Q1 is grounded through a resistor R8, the emitter of the triode Q1 is grounded through a resistor R1 and a capacitor C1 sequentially connected in series, the collector of the triode Q1 is connected to the power supply terminal VCC through a resistor R6, the collector of the triode Q1 is connected to the base of the triode Q2 through a capacitor C4, the emitter of the triode Q2 is grounded through a resistor R2 and a capacitor C2 sequentially connected in series, the collector of the triode Q2 is connected to the power supply terminal VCC through a resistor R10, and the collector of the triode Q2 is connected to the optical signal transmitting module 210. The effective bandwidth of the transmitting end can be improved by adjusting the resistance and the capacitance of the resistor R1, the capacitor C1, the resistor R2 and the capacitor C2.
Specifically, referring to fig. 6, the post-equalization receiving circuit 250 includes a capacitor C22, a capacitor C25, a resistor R21, a resistor R23, and a differential amplifier AMP1, where an output positive electrode of the optical signal receiving module 220 is connected to an in-phase end of the differential amplifier AMP1 through the capacitor C21, the resistor R21, and the resistor R22 that are sequentially connected in series, the capacitor C22 is connected in parallel with two ends of the resistor R21, an output negative electrode of the optical signal receiving module 220 is connected to an inverting end of the differential amplifier AMP1 through a capacitor C24, a resistor R23, and a resistor R24 that are sequentially connected in series, the capacitor C25 is connected in parallel with two ends of the resistor R23, and an output end of the differential amplifier AMP1 is connected to the MCU230 through the capacitor C23 and the capacitor C26, respectively. The effective bandwidth of the receiving end can be improved by adjusting the resistor R21, the capacitor C22, the resistor R23 and the capacitor C25.
Specifically, in the embodiment of the present utility model, the optical signal sending module 210 includes an infrared laser diode and a driving circuit, and the output end of the pre-emphasis sending circuit 240 is connected to the infrared laser diode through the driving circuit. The optical signal receiving module 220 includes a photodiode and a low noise amplifier, and the photodiode is connected to an input terminal of the post-equalization receiving circuit 250 through the low noise amplifier.
Specifically, referring to fig. 1, in the embodiment of the present utility model, a light shielding plate 400 is used, and the light shielding plate is connected to the front surface of the cabinet 100 through a hinge, and when the light shielding plate shields the front surface of the cabinet 100 during normal operation, when the switch drawer 110 needs to be maintained or pulled out, the light shielding plate is opened first, and then the operation of opening and closing the drawer 110 is performed. A folding window shade may be used in addition to the window shade to block the front of the cabinet 100.
In the embodiment of the utility model, the external communication interface 300 is an aviation plug, so that the wiring is convenient.
The utility model also relates to an electrical device comprising the drawer type switch cabinet of the embodiment.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A drawer-type switch cabinet, comprising:
the intelligent cabinet comprises a cabinet body (100), wherein a plurality of unit grids are arranged on the cabinet body (100), light-transmitting areas which are communicated from top to bottom are arranged among the unit grids, pluggable switch drawers (110) are arranged in the unit grids, and an internal communication interface (111) is arranged in the switch drawers (110) and used for connecting internal electric energy collection monitoring equipment;
the optical communication modules (200) are respectively arranged at the top and the bottom of the switch drawer (110) and are positioned in the light transmission area, and the optical communication modules (200) are connected with the internal communication interfaces (111) corresponding to the switch drawer (110);
an external communication interface (300), wherein the external communication interface (300) is positioned at the top of the cabinet body (100) and is connected with the communication interface of the switch drawer (110) of the uppermost Fang Shanyuan grid;
the shading device (400) is movably arranged on the front surface of the cabinet body (100) and used for shading light.
2. The drawer-type switch cabinet according to claim 1, wherein the partition plates (120) of the unit cells are all provided with light holes (121), and all the light holes (121) are located on the same vertical line.
3. The drawer switch cabinet according to claim 1, wherein the optical communication module (200) comprises an optical signal transmitting module (210), an optical signal receiving module (220), an MCU (230), a pre-emphasis transmitting circuit (240) and a post-equalization receiving circuit (250), the MCU (230) is connected to an input end of the pre-emphasis transmitting circuit (240), an output end of the pre-emphasis transmitting circuit (240) is connected to an input end of the optical signal transmitting module (210), an output end of the optical signal receiving module (220) is connected to an input end of the post-equalization receiving circuit (250), and an output end of the post-equalization receiving circuit (250) is connected to the MCU (230).
4. A drawer-type switch cabinet according to claim 3, wherein the optical signal transmission module (210) comprises an infrared laser diode and a driving circuit, and the output end of the pre-emphasis transmission circuit (240) is connected with the infrared laser diode through the driving circuit.
5. A drawer-type switch cabinet according to claim 3, wherein the optical signal receiving module (220) comprises a photodiode and a low noise amplifier, the photodiode being connected to the input of the post-equalization receiving circuit (250) through the low noise amplifier.
6. A drawer-type switch cabinet according to claim 3, wherein the pre-emphasis transmitting circuit (240) comprises a triode Q1, a triode Q2, a resistor R1, a resistor R2, a capacitor C1 and a capacitor C2, the MCU (230) is connected with the base electrode of the triode Q1 through the capacitor C3, the emitter electrode of the triode Q1 is grounded through the resistor R8, the emitter electrode of the triode Q1 is grounded through the resistor R1 and the capacitor C1 which are sequentially connected in series, the collector electrode of the triode Q1 is connected with a power supply end VCC through the resistor R6, the collector electrode of the triode Q1 is connected with the base electrode of the triode Q2 through the capacitor C4, the emitter electrode of the triode Q2 is grounded through the resistor R12 which is sequentially connected in series, the collector electrode of the triode Q2 is connected with the power supply end through the resistor R10, and the collector electrode of the triode Q2 is connected with the optical signal transmitting module (210).
7. A drawer-type switch cabinet according to claim 3, wherein the rear equalization receiving circuit (250) comprises a capacitor C22, a capacitor C25, a resistor R21, a resistor R23 and a differential amplifier AMP1, the positive electrode of the output end of the optical signal receiving module (220) is connected to the non-inverting end of the differential amplifier AMP1 through the capacitor C21, the resistor R21 and the resistor R22 which are sequentially connected in series, the capacitor C22 is connected in parallel with the two ends of the resistor R21, the negative electrode of the output end of the optical signal receiving module (220) is connected to the inverting end of the differential amplifier AMP1 through a capacitor C24, a resistor R23 and a resistor R24 which are sequentially connected in series, the capacitor C25 is connected in parallel with the two ends of the resistor R23, and the output end of the differential amplifier AMP1 is connected to the MCU (230) through the capacitor C23 and the capacitor C26, respectively.
8. Drawer-type switch cabinet according to claim 1, characterized in that the shading means (400) is a shading plate or a shading curtain.
9. The drawer-type switch cabinet of claim 1, wherein the external communication interface (300) is an aviation plug.
10. An electrical apparatus comprising a drawer-type switch cabinet as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416932.5U CN220440168U (en) | 2023-06-05 | 2023-06-05 | Drawer type switch cabinet and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416932.5U CN220440168U (en) | 2023-06-05 | 2023-06-05 | Drawer type switch cabinet and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220440168U true CN220440168U (en) | 2024-02-02 |
Family
ID=89699220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321416932.5U Active CN220440168U (en) | 2023-06-05 | 2023-06-05 | Drawer type switch cabinet and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220440168U (en) |
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2023
- 2023-06-05 CN CN202321416932.5U patent/CN220440168U/en active Active
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