CN105977808B - A novel switch board for power transmission and distribution occasion - Google Patents

A novel switch board for power transmission and distribution occasion Download PDF

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Publication number
CN105977808B
CN105977808B CN201610428929.3A CN201610428929A CN105977808B CN 105977808 B CN105977808 B CN 105977808B CN 201610428929 A CN201610428929 A CN 201610428929A CN 105977808 B CN105977808 B CN 105977808B
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China
Prior art keywords
integrated circuit
resistance
handle
cabinet
power transmission
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Application number
CN201610428929.3A
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Chinese (zh)
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CN105977808A (en
Inventor
陈立
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GUANGZHOU KINGROAD ELECTRICAL EQUIPMENT CO Ltd
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Guangzhou Kingroad Electrical Equipment Co ltd
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Priority to CN201610428929.3A priority Critical patent/CN105977808B/en
Publication of CN105977808A publication Critical patent/CN105977808A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306Accessories, e.g. windows
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/023Handles; Grips

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Distribution Board (AREA)

Abstract

The invention relates to a novel power distribution cabinet for power transmission and distribution occasions, which comprises a cabinet body and a side door mechanism arranged on one side of the cabinet body, wherein a display screen, a plurality of status indicators and an input/output mechanism are sequentially arranged on the front surface of the cabinet body from top to bottom, a clamping block is inserted into a second notch in a lock column through a spring in a handle unit to realize the sealing of the side door, the clamping block is separated from the second notch by pulling the handle to open the side door, the mounting mechanism is simple, convenient and rapid to operate, the practicability of the power distribution cabinet is greatly improved, and moreover, a signal processing circuit has the function of adjustable gain, the acquisition of input signals of different grades can be met, and the reliability of the signal processing circuit is improved.

Description

A kind of novel distribution cabinet for power transmission and distribution occasion
Technical field
The present invention relates to a kind of novel distribution cabinets for power transmission and distribution occasion.
Background technology
Power distribution cabinet is the general designation of motor control center, and as the final stage device of distribution system, power distribution cabinet use is in load Occasion more dispersed, circuit is less, and the occasion that motor control center concentrates for load, circuit is more.
In order to understand the specific works situation of power distribution cabinet in further detail, the side of power distribution cabinet is typically provided with side door, by beating Power distribution cabinet interior examination internal components operation conditions can be entered by opening side door operating personnel, but in existing power distribution cabinet, side door Installing mechanism is complicated, inconvenient victory.Meanwhile power distribution cabinet is poor for power network signal processing capacity, at internal signal The signal that reason module can be handled is single, processing operation cannot be carried out to the signal of a variety of different intensity grades simultaneously, to make The practicability of power distribution cabinet decreases.
Invention content
The technical problem to be solved by the present invention is to:For overcome the deficiencies in the prior art, it provides and a kind of being used for power transmission and distribution The novel distribution cabinet of occasion.
The technical solution adopted by the present invention to solve the technical problems is:A kind of new distribution for power transmission and distribution occasion Cabinet, including cabinet and the side door mechanism in cabinet side is set, if the front of the cabinet be equipped with successively from top to down display screen, Dry status indicator lamp and input/output mechanism;
The side door mechanism includes side door and lock pillar, and the side door is equipped with installing mechanism, the installing mechanism and lock pillar It connects, several second recesses is equipped with close to the side of installing mechanism on the lock pillar;
If the installing mechanism includes handle unit, vertically arranged fixed column, two horizontally disposed horizon bars, solid carbon dioxides Spring, several horizontally disposed connecting rods, vertically arranged pull rod and several fixture blocks of flat setting, two horizon bar difference Be arranged in the both sides up and down of fixed column, the handle unit is arranged between two horizon bars, the fixed column by spring with Handle unit connects, and the side far from fixed column in handle unit is arranged in the connecting rod, and the handle unit passes through connecting rod It is connect with pull rod, the fixture block is fixed on side of the pull rod far from handle unit, the number of the quantity of the fixture block and the second recess It measures equal and corresponds, the fixture block is matched with corresponding second recess, and the spring is in compressive state;
It is equipped with signal processing module in the cabinet, signal processing circuit, the letter are equipped in the signal processing module Number processing circuit includes integrated circuit, the 5th resistance, the 6th resistance, the 7th resistance, the first capacitance, the second capacitance and third electricity Hold, the model 1B31 of the integrated circuit, the probe power end of the integrated circuit is grounded by bridge circuit, the collection It is connect with bridge circuit at the input terminal of circuit, the external -15V DC voltage power supplies of negative power end of the integrated circuit are described The negative power end of integrated circuit passes through the first capacitance and the second capacity earth, the common end grounding of the integrated circuit, institute respectively The external 15V DC voltage power supplies of power end of integrated circuit are stated, the reference edge of the integrated circuit passes through third capacity earth, institute The threshold values end for stating integrated circuit is connected by 333.3 times of threshold values ends of the 5th resistance and integrated circuit, the bridge of the integrated circuit The adjustable end for the series circuit and integrated circuit that excitation output adjustable side is made up of the 6th resistance and the 7th resistance connects;
The handle unit includes handle and two fixed cells, and the handle is arranged between spring and connecting rod, institute State top and bottom end that fixed cell is fixed on handle, the fixed cell includes vertically arranged fixed link and vertically arranged Shaft, the handle are connect by fixed link with shaft, and groove is equipped with close to the side of handle unit in the horizon bar, described The one end of shaft far from handle is arranged in groove.
Preferably, the bridge circuit includes first resistor, second resistance, 3rd resistor and the 4th resistance, the collection Series circuit, 3rd resistor and the 4th electricity being made up of respectively first resistor and second resistance at the probe power end of circuit The series circuit ground connection of resistance composition, the positive input terminal of the integrated circuit is connect with first resistor and second resistance respectively, described The negative input end of integrated circuit is connect with 3rd resistor and the 4th resistance respectively.
Preferably, staff observes operation for convenience, the input/output mechanism includes switch, work light And loud speaker.
Preferably, in order to reduce frictional force when handle movement, the shaft is equipped with pulley, the diameter of the pulley It is equal with the width of groove.
Preferably, catching handle in order to facilitate staff, it is equipped with close to the side of fixed column in the handle several The shape of first recess, first recess is semicircle.
Preferably, fixture block is inserted into the second recess for convenience, one end of the fixture block is round end.
Preferably, so that fixture block is deformed upon in order to avoid colliding when fixture block is repeatedly inserted into the second recess, described The opening of two recesses is horn mouth.
Preferably, in order to reinforce showing, the status indicator lamp includes dichromatic LED.
The invention has the advantages that the novel distribution cabinet for being used for power transmission and distribution occasion is made by the spring in handle unit Fixture block is inserted into the second recess in lock pillar, realizes the closing of side door, so that fixture block is detached from the second recess by pull handle, makes side door It opens, the installing mechanism is simple to operate quick, greatly improves the practicability of power distribution cabinet, moreover, signal processing electricity Road has the function of adjustable gain, disclosure satisfy that the acquisition of different grades of input signal, and improve signal processing circuit can By property.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 2 is the structural schematic diagram of the side door mechanism of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 3 is the structural schematic diagram of the installing mechanism of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 4 is the structural schematic diagram of the handle unit of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 5 is the structural schematic diagram of the horizon bar of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 6 is the structural schematic diagram of the lock pillar of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
Fig. 7 is the circuit diagram of the signal processing circuit of the novel distribution cabinet for power transmission and distribution occasion of the present invention;
In figure:1. cabinet, 2. display screens, 3. side door mechanisms, 4. status indicator lamps, 5. switches, 6. work lights, 7. raise Sound device, 8. installing mechanisms, 9. lock pillars, 10. fixed columns, 11. horizon bars, 12. springs, 13. handle units, 14. connecting rods, 15. Pull rod, 16. fixture blocks, 17. first recesses, 18. fixed links, 19. shafts, 20. pulleys, 21. handles, 22. second recesses, 23. sides Door, 24. grooves, U1. integrated circuits, R1. first resistors, R2. second resistances, R3. 3rd resistors, the 4th resistance of R4., R5. the Five resistance, the 6th resistance of R6., the 7th resistance of R7., the first capacitances of C1., the second capacitances of C2., C3. third capacitances.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
As shown in Fig. 1-Fig. 7, a kind of novel distribution cabinet for power transmission and distribution occasion, including cabinet 1 and setting are in cabinet 1 one The front of the side door mechanism 3 of side, the cabinet 2 is equipped with display screen 2, several status indicator lamps 4 and inputs defeated successively from top to down Go out mechanism;
The side door mechanism 3 includes side door 3 and lock pillar 9, and the side door 3 is equipped with installing mechanism 8, the installing mechanism 8 It is connect with lock pillar 9, several second recesses 22 is equipped with close to the side of installing mechanism 8 on the lock pillar 9;
The installing mechanism 8 includes handle unit 13, vertically arranged 10, two horizontally disposed horizon bars of fixed column 11, several horizontally disposed springs 12, several horizontally disposed connecting rods 14, vertically arranged pull rod 15 and several fixture blocks 16, Two horizon bars 11 are separately positioned on the both sides up and down of fixed column 10, and the handle unit 13 is arranged in two horizon bars 11 Between, the fixed column 10 is connect by spring 12 with handle unit 13, and the setting of the connecting rod 14 is separate in handle unit 13 The side of fixed column 10, the handle unit 13 are connect by connecting rod 14 with pull rod 15, and the fixture block 16 is fixed on pull rod 15 Side far from handle unit 13, the quantity of the fixture block 16 is equal with the quantity of the second recess 22 and corresponds, the card Block 16 is matched with corresponding second recess 22, and the spring 12 is in compressive state;
It is equipped with signal processing module in the cabinet 1, signal processing circuit, the letter are equipped in the signal processing module Number processing circuit includes integrated circuit U1, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the first capacitance C1, the second capacitance The model 1B31 of C2 and third capacitance C3, the integrated circuit U1, the probe power end of the integrated circuit U1 passes through electricity Bridge circuit is grounded, and the input terminal of the integrated circuit U1 connect with bridge circuit, and the negative power end of the integrated circuit U1 is external- The negative power end of 15V DC voltage power supplies, the integrated circuit U1 passes through the first capacitance C1 and the second capacitance C2 ground connection, institute respectively State the common end grounding of integrated circuit U1, the external 15V DC voltage power supplies of power end of the integrated circuit U1, the integrated electricity The reference edge of road U1 is grounded by third capacitance C3, and the threshold values end of the integrated circuit U1 passes through the 5th resistance R5 and integrated circuit 333.3 times of threshold values ends of U1 connect, and the bridge excitation output adjustable side of the integrated circuit U1 passes through the electricity of the 6th resistance R6 and the 7th The series circuit of resistance R7 compositions is connect with the adjustable end of integrated circuit U1.
Preferably, the bridge circuit includes first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance The probe power end of R4, the integrated circuit U1 respectively by the series circuit of first resistor R1 and second resistance R2 compositions, The series circuit ground connection of 3rd resistor R3 and the 4th resistance R4 compositions, the positive input terminal of the integrated circuit U1 are electric with first respectively Resistance R1 is connected with second resistance R2, and the negative input end of the integrated circuit U1 connects with 3rd resistor R3 and the 4th resistance R4 respectively It connects.
Preferably, staff observes operation for convenience, the input/output mechanism includes switch 5, work instruction Lamp 6 and loud speaker 7.
Preferably, in order to ensure that handle unit 13 smoothly moves, the handle unit 13 includes handle 21 and two Fixed cell, the handle 21 are arranged between spring 12 and connecting rod 14, and the fixed cell is fixed on the top of handle 21 And bottom end, the fixed cell include vertically arranged fixed link 18 and vertically arranged shaft 19, the handle 21 passes through solid Fixed pole 18 is connect with shaft 19, and groove 24 is equipped with close to the side of handle unit 13 in the horizon bar 11, and the shaft 19 is remote One end from handle 21 is arranged in groove 24.
Preferably, in order to reduce frictional force when handle 21 moves, the shaft 19 is equipped with pulley 20, the pulley 20 diameter is equal with the width of groove 24.
Preferably, catching handle 21 in order to facilitate staff, set close to the side of fixed column 10 in the handle 21 There are several first recesses 17, the shape of first recess 17 is semicircle.
Preferably, fixture block 16 is inserted into the second recess 22 for convenience, one end of the fixture block 16 is round end.
Preferably, so that fixture block 16 is deformed upon in order to avoid colliding when more than 16 the second recess 22 of insertion of fixture block, The opening of second recess 22 is horn mouth.
Preferably, in order to reinforce showing, the status indicator lamp 6 includes dichromatic LED.
When power distribution cabinet is run, when relevant staff needs module operation conditions each into 1 interior examination of cabinet, lead to The side that handle 21 is pull towards to fixed column 10 is crossed, to make the fixture block 16 of 15 side of pull rod pull out the second recess 22 in lock pillar 9, Side door 23 can be removed at this time, to facilitate staff to enter inside cabinet 1.When needing to close side door 23, pull handle 21, while making the fixture block 16 on pull rod 15 to whose the second recess 22, it looses one's grip, at this time under the reset response of spring 12, fixture block 16 Into inside the second recess 22, to which side door 23 be got up by the block of lock pillar 9.During block, due to handle unit 13 Top and bottom end be equipped with fixed cell, moved in the groove 24 in horizon bar 11 by the shaft 19 on fixed cell, It thereby may be ensured that handle 21 moves in the same plane, moving process can be effectively reduced using in shaft 19 pulley 20 The frictional force of middle generation, meanwhile, one end of fixture block 16 into the second recess 22 uses the design of round end, small using round end top Design, be not only avoided that the case where fixture block 16 sharply generates destruction to the second recess 22, while it is accurate to be also beneficial to fixture block 16 Ground enters in the second recess 22, and the opening of the second recess 22 can also be effectively prevented long-time service using the design of horn shape Generating collision leads to the deformation situation of the second recess 22.The novel distribution cabinet for being used for power transmission and distribution occasion passes through in handle unit 13 Spring 12 make fixture block 16 be inserted into lock pillar 9 in the second recess 22, realize side door 23 closing, fixture block is made by pull handle 21 16 are detached from the second recess 22, and side door 23 is made to open, and the installing mechanism 8 is simple to operate quick, greatly improves power distribution cabinet Practicability.
In the signal processing module of cabinet 1, the signal of different intensity grades is carried out by internal signal processing circuit Processing operation.The measuring signal of sensor is transformed to 0-1OV voltage outputs by the circuit, in addition after power supply, internal reference voltage It is predisposed to 1OV, bridge excitation output adjustable side increases bridge excitation output voltage when being connected to the adjustable end of integrated circuit U1, if reducing Bridge driving voltage exports, then accesses resistance between the threshold values end of integrated circuit U1 and 333.3 times of threshold values ends.Bridge measuring bridge is defeated Go out signal to send to the instrumentation amplifier inside integrated circuit U1 by the positive input terminal and negative input end of integrated circuit U1.Amplifier Gain is determined by the resistance between the bridge excitation output adjustable side of integrated circuit U1 and adjustable end, is adjusted the 7th resistance R7, that is, is adjusted Save the gain of amplifier.
Compared with prior art, which is made by the spring 12 in handle unit 13 Fixture block 16 is inserted into the second recess 22 in lock pillar 9, realizes the closing of side door 23, so that fixture block 16 is detached from second by pull handle 21 Recess 22 makes side door 23 open, and the installing mechanism 8 is simple to operate quick, greatly improves the practicability of power distribution cabinet, not only In this way, signal processing circuit has the function of adjustable gain, it disclosure satisfy that the acquisition of different grades of input signal, improve letter The reliability of number processing circuit.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.

Claims (8)

1. a kind of novel distribution cabinet for power transmission and distribution occasion, which is characterized in that including cabinet (1) and be arranged in cabinet (1) one The front of the side door mechanism (3) of side, the cabinet (1) is equipped with display screen (2), several status indicator lamps (4) successively from top to down And input/output mechanism;
The side door mechanism (3) includes side door (3) and lock pillar (9), and the side door (3) is equipped with installing mechanism (8), the installation Mechanism (8) is connect with lock pillar (9), and several second recesses (22) are equipped with close to the side of installing mechanism (8) on the lock pillar (9);
The installing mechanism (8) includes handle unit (13), vertically arranged fixed column (10), two horizontally disposed horizon bars (11), several horizontally disposed springs (12), several horizontally disposed connecting rods (14), vertically arranged pull rod (15) and several Fixture block (16), two horizon bars (11) are separately positioned on the both sides up and down of fixed column (10), and the handle unit (13) sets It sets between two horizon bars (11), the fixed column (10) is connect by spring (12) with handle unit (13), the connection Bar (14) setting handle unit (13) far from fixed column (10) side, the handle unit (13) by connecting rod (14) with Pull rod (15) connects, and the fixture block (16) is fixed on side of the pull rod (15) far from handle unit (13), the fixture block (16) Quantity is equal with the quantity of the second recess (22) and corresponds, and the fixture block (16) matches with corresponding second recess (22), The spring (12) is in compressive state;
It is equipped with signal processing module in the cabinet (1), signal processing circuit, the signal are equipped in the signal processing module Processing circuit include integrated circuit (U1), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the first capacitance (C1), Second capacitance (C2) and third capacitance (C3), the model 1B31 of the integrated circuit (U1), the biography of the integrated circuit (U1) Sensor power end is grounded by bridge circuit, and the input terminal of the integrated circuit (U1) is connect with bridge circuit, the integrated electricity The negative power end of the external -15V DC voltage power supplies of negative power end on road (U1), the integrated circuit (U1) passes through the first electricity respectively Hold (C1) and the second capacitance (C2) ground connection, the common end grounding of the integrated circuit (U1), the power supply of the integrated circuit (U1) External 15V DC voltage power supplies, the reference edge of the integrated circuit (U1) is held to be grounded by third capacitance (C3), the integrated electricity The threshold values end on road (U1) is connect by the 5th resistance (R5) with 333.3 times of threshold values ends of integrated circuit (U1), the integrated circuit (U1) series circuit and integrated circuit that bridge excitation output adjustable side is made up of the 6th resistance (R6) and the 7th resistance (R7) (U1) adjustable end connection;
The handle unit (13) includes handle (21) and two fixed cells, and handle (21) setting is in spring (12) and even Between extension bar (14), the fixed cell is fixed on the top and bottom end of handle (21), and the fixed cell (21) includes vertical The fixed link (18) and vertically arranged shaft (19) of setting, the handle (21) are connected by fixed link (18) and shaft (19) It connects, is equipped with groove (24) close to the side of handle unit (13) in the horizon bar (11), the shaft (19) is far from handle (21) one end setting is in groove (24).
2. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that the bridge circuit includes First resistor (R1), second resistance (R2), 3rd resistor (R3) and the 4th resistance (R4), the sensor of the integrated circuit (U1) Series circuit, 3rd resistor (R3) and the 4th resistance that power end is made up of first resistor (R1) and second resistance (R2) respectively (R4) the series circuit ground connection formed, the positive input terminal of the integrated circuit (U1) respectively with first resistor (R1) and second resistance (R2) it connects, the negative input end of the integrated circuit (U1) is connect with 3rd resistor (R3) and the 4th resistance (R4) respectively.
3. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that the input/output mechanism Including switch (5), work light (6) and loud speaker (7).
4. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that set on the shaft (19) There are pulley (20), the diameter of the pulley (20) equal with the width of groove (24).
5. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that leaned in the handle (21) The side of nearly fixed column (10) is equipped with several first recesses (17), and the shape of first recess (17) is semicircle.
6. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that the one of the fixture block (16) End is round end.
7. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that second recess (22) Opening be horn mouth.
8. being used for the novel distribution cabinet of power transmission and distribution occasion as described in claim 1, which is characterized in that the status indicator lamp (6) include dichromatic LED.
CN201610428929.3A 2016-06-16 2016-06-16 A novel switch board for power transmission and distribution occasion Active CN105977808B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610428929.3A CN105977808B (en) 2016-06-16 2016-06-16 A novel switch board for power transmission and distribution occasion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610428929.3A CN105977808B (en) 2016-06-16 2016-06-16 A novel switch board for power transmission and distribution occasion

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Publication Number Publication Date
CN105977808A CN105977808A (en) 2016-09-28
CN105977808B true CN105977808B (en) 2018-09-28

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203193132U (en) * 2013-03-19 2013-09-11 唐天利 Safety power distribution cabinet
CN204809689U (en) * 2015-06-26 2015-11-25 镇海建设集团有限公司 Block terminal of convenient transport

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201270377Y (en) * 2008-08-08 2009-07-08 上海华声电气研究所 Safe type power distribution cabinet
CN202162729U (en) * 2011-07-19 2012-03-14 温州维科生物实验设备有限公司 Clamping device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203193132U (en) * 2013-03-19 2013-09-11 唐天利 Safety power distribution cabinet
CN204809689U (en) * 2015-06-26 2015-11-25 镇海建设集团有限公司 Block terminal of convenient transport

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Effective date of registration: 20180816

Address after: Room C211, No. 89 Zhongshan Road, Tianhe District, Guangzhou City, Guangdong Province

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