CN204302748U - A kind of electric appliance control box based on flameproof principle - Google Patents
A kind of electric appliance control box based on flameproof principle Download PDFInfo
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- CN204302748U CN204302748U CN201420746305.2U CN201420746305U CN204302748U CN 204302748 U CN204302748 U CN 204302748U CN 201420746305 U CN201420746305 U CN 201420746305U CN 204302748 U CN204302748 U CN 204302748U
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Abstract
The utility model belongs to boat-carrying explosion-proof technology field, is specifically related to a kind of electric appliance control box based on flameproof principle, and object is to provide a kind of electric appliance control box being suitable for boat-carrying.It is characterized in that: comprise flameproof cabinet (1), flame proof aobvious control assembly (2), control circuit module (3), circuit isolation module (4) and binding post (5); Wherein, control circuit module (3), circuit isolation module (4) and binding post (5) are arranged in flameproof cabinet (1); Flame proof aobvious control assembly (2) is arranged on flameproof cabinet (1) outside end face, is connected with control circuit module (3); Control circuit module (3) is also connected with circuit isolation module (4); Circuit isolation module (4) is also connected with external equipment; Binding post (5) is connecting circuit isolation module (4) and external equipment respectively.The utility model adopts the main box of optimizing structure, and makes full use of body structure inner space, reduces the volume of electric appliance control box.
Description
Technical field
The utility model belongs to boat-carrying explosion-proof technology field, is specifically related to a kind of electric appliance control box based on flameproof principle.
Background technology
In colliery, gas station, the explosive place such as oiler, electric appliance control box need possess explosion-proof performance, existing explosion-proof electric apparatus case or function singleness, be only applicable to stationary applica-tions, or complex structure, and be mostly and reach explosion-proof performance and the too dispersion of being arranged by the connection jaws with external equipment, be unfavorable for equipment wiring and maintenance.
If the patent No. is 201310028584.9 mine anti-explosion electric control cabinet mentioned, box house adopts strip-shaped bracket support structure and fixed part, the shortcoming existed is when internal part is more, strip-shaped bracket complex structure, and parts all in one plane, oversize on casing length, width.
If the patent No. is the 201120575836.6 Flameproof and intrinsically safe PLC integrating control casees mentioned, the shortcoming of existence is that the connection jaws on casing top is not easy to wiring and maintenance, and does not arrange shock-damping structure, cannot adapt to requirement peculiar to vessel to external connection port dispersion.
Summary of the invention
The purpose of this utility model is to provide a kind of electric appliance control box based on flameproof principle being suitable for boat-carrying.
The utility model is achieved in that
Based on an electric appliance control box for flameproof principle, it comprises flameproof cabinet, flame proof aobvious control assembly, control circuit module, circuit isolation module and binding post; Wherein, control circuit module, circuit isolation module and binding post are arranged in flameproof cabinet; Flame proof aobvious control assembly is arranged on the outside end face of flameproof cabinet, and with control circuit model calling, control circuit module is also connected with circuit isolation module, and circuit isolation module is also connected with external equipment, and binding post is connecting circuit isolation module and external equipment respectively.
Flameproof cabinet as above comprises main box, main chamber upper cover, wire connection cavity upper cover, anti-explosion packing gland and bumper assembly; Wherein, the cuboid box-shaped that main box is welded by corrosion resistant plate, comprises main chamber and wire connection cavity, and control circuit module and circuit isolation module are arranged in main chamber; Binding post is arranged in wire connection cavity.
Back and the sidewall in main chamber as above are equipped with fixed head, and control circuit module and circuit isolation module are arranged on fixed head.
Main chamber as above upper cover is monoblock corrosion resistant plate, and be arranged on main box front end face top, upper cover offers multiple hole; Upper exterior surface is provided with handle, and inner surface is provided with chute, is provided with a circle rubber ring near the edge of inner surface.
Wire connection cavity upper cover as above is monoblock corrosion resistant plate, and be arranged on main box front end face bottom, outer surface is provided with handle, is provided with a circle rubber ring near inner surface edge.
Anti-explosion packing gland as above is arranged on bottom main box, and it is explosion-proof armouring stuffing-box, and adopt multilayer gland structure, explosion-proof filler is filled in anti-explosion packing gland inside.
Bumper assembly as above is arranged on main box rear portion end face, is made up of damper and installing plate, and damper is fixedly connected with main box, installing plate; Damper selects steel rope damper or rubber absorbers.
Explosion-proof aobvious control assembly as above is by showing control elements and proof assembl is formed.
Control circuit module as above comprises power subsystem, control unit, signal processing unit and driver element; Wherein, power subsystem is connected with control unit, signal processing unit, driver element and external equipment; Control unit is also aobvious with signal processing unit, driver element and flame proof to be controlled assembly and is connected, and signal processing unit is also connected with circuit isolation module; Driver element is also connected with circuit isolation module.
Control unit as above adopts single-chip microcomputer, PLC or embedded control chip to realize, signal processing unit adopts existing signal amplification circuit, signaling conversion circuit, signal integer circuit, signal filter circuit to realize, driver element adopts signal amplification circuit and signaling conversion circuit to realize, and power subsystem adopts power switch, transformer and power panel to realize.
The beneficial effects of the utility model are:
The utility model adopts the main box of optimizing structure, and makes full use of body structure inner space, reduces the volume of electric appliance control box, by adopting binding post, achieving external cable and concentrating input and output, being convenient to wiring, maintenance.Adopt control circuit module, be integrated with controlling functions, by the setting of control circuit module, circuit isolation module, enable the input/output signal of electric appliance box to various external equipment process and control, function obtains integrated.The electric appliance control box based on flameproof principle that the utility model proposes can have the place of requirement of explosion proof to use various.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of electric appliance control box based on flameproof principle of the present utility model;
Fig. 2 is the structure principle chart of control circuit module in Fig. 1;
In figure: 1. flameproof cabinet, 2. flame proof aobvious control assembly, 3. control circuit module, 4. circuit isolation module, 5. binding post, 6. main box, 7. main chamber upper cover, 8. wire connection cavity upper cover, 9. anti-explosion packing gland, 10. bumper assembly, 11. main chambeies, 12. wire connection cavities, 13. through wires holes, 14. dampers, 15. installing plates, 16. fixed heads.
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of electric appliance control box based on flameproof principle of the present utility model is introduced:
As shown in Figure 1, a kind of electric appliance control box based on flameproof principle, comprises flameproof cabinet 1, flame proof aobvious control assembly 2, control circuit module 3, circuit isolation module 4 and binding post 5.Wherein, flameproof cabinet 1 is for the protection of control circuit module 3, circuit isolation module 4 and binding post 5, and control circuit module 3, circuit isolation module 4 and binding post 5 are arranged on flameproof cabinet 1, and flameproof cabinet 1 is for realizing flame proof protection.Flame proof aobvious control assembly 2 is connected with control circuit module 3, receives the information forwarded from control circuit module 3, and for needing detection signal to show, it is also for inputting instruction, and implement control, it is arranged on the outside end face of flameproof cabinet 1.Control circuit module 3 is also connected with circuit isolation module 4, its receive from circuit isolation module 4 external signal and from flame proof show control assembly 2 input instruction to its according to setting program process, export control signal to circuit isolation module 4, output information is to flame proof aobvious control assembly 2.Circuit isolation module 4 is also connected with external equipment, for carrying out filtering, noise isolation to the signal of input, then sends it to control circuit module 3 or external equipment.Binding post 5 is connecting circuit isolation module 4 and external equipment respectively, as the connection hinge of circuit isolation module 4 with external equipment inlet wire, avoids outside inlet wire to be directly connected with control circuit module 5 and the maintenance that causes and difficulty.
In the present embodiment, flameproof cabinet 1 comprises main box 6, main chamber upper cover 7, wire connection cavity upper cover 8, anti-explosion packing gland 9 and bumper assembly 10.Wherein, the cuboid box-shaped that main box 6 is welded by corrosion resistant plate, casing is main chamber 11 and wire connection cavity 12 by baffle for separating, and main chamber 11 is positioned at top, installs control circuit module 3 and circuit isolation module 4.Wire connection cavity 12 is positioned at bottom, and install binding post 5, dividing plate is provided with through wires hole 13, for line between two chambers.
Back and the sidewall in main chamber 11 are equipped with fixed head 16, and control circuit module 3 and circuit isolation module 4 are arranged on fixed head 16.Fixed head 16 is connected with casing by screw, and control circuit module 3 and circuit isolation module 4 are arranged on fixed head 16 by guide rail or screw, can realizing circuit device subregion, three-dimensional to arrange, the space of inner chamber is fully utilized.
Arrange binding post 5 in wire connection cavity 12, for reducing number of terminals, can select double layers of terminals, for convenience of dismounting, terminal can select card rail installing type.Binding post 5 adopts existing product to realize, and according to external equipment explosion-resistance characteristic, can be divided into intrinsic safety district and non-intrinsic safety district.
On dividing plate, through wires hole 13 is connected with the wire of wire connection cavity 12 for main chamber 11, by intrinsic safety and the non-intrinsic safety characteristic of signal transmission on wire, 2 and above through wires hole 13 can be set, intrinsic safety wire and non-intrinsic safety wire are separated, the size of through wires hole 13 should adjust according to the overall size of the wire passed.
Main chamber upper cover 7 is monoblock corrosion resistant plate, and be arranged on main box 6 front end face top, upper cover offers multiple hole, for arranging flame proof aobvious control assembly 2; Upper exterior surface is provided with handle, and inner surface is provided with chute, and the wire showing control assembly 2 for flame proof is fixed, and is provided with a circle rubber ring near the edge of inner surface, for sealing.Wire connection cavity upper cover 8 is monoblock corrosion resistant plate, and be arranged on main box 6 front end face bottom, outer surface is provided with handle, is provided with a circle rubber ring near inner surface edge, for sealing.
Main chamber 11 upper cover 7 plate, between wire connection cavity 12 upper cover 8 plate and main box 6, adopt screw carry out connections compression, guarantee the sealing of casing, flame proof.
Anti-explosion packing gland 9 is arranged on bottom main box 6, and it is explosion-proof armouring stuffing-box, adopts multilayer gland structure, is clamped by cable, uses explosion-proof filler to fill simultaneously, ensures the reliable connection of cable and the positiver sealing of casing.
Bumper assembly 10 is arranged on main box 6 rear portion end face, is made up of damper 14 and installing plate 15, and damper 14 and main box 6, installing plate 15 are with bolts.Damper 14 can select steel rope damper or rubber absorbers, installing plate 15 for explosion-proof electric apparatus case and mounting surface as the installation of wall.
Explosion-proof aobvious control assembly 2 is made up of aobvious control elements and proof assembl, and as required, aobvious control elements can be the acousto-optic hint such as indicator lamp, buzzer element, or the actuation member such as button, switch.Proof assembl adopts the universal product to realize
Control circuit module 3 comprises power subsystem, control unit, signal processing unit and driver element.Wherein, power subsystem is control unit, signal processing unit, driver element and external equipment provide power supply, adopts existing techniques in realizing by power switch, transformer and power panel.Control unit is also aobvious with signal processing unit, driver element and flame proof to be controlled assembly and is connected, it receives the signal carrying out circuit isolation module 4 isolation processing through signal processing unit processes, comprise sensor signal, the status signal of executing agency and other equipment input signals outside, also receive the input instruction showing control assembly 2 from flame proof, control unit is to above-mentioned signal and input instruction according to setting program process, export control signal to driver element, the status signal of output executing mechanism is to flame proof aobvious control assembly 2.The signals such as the control instruction that other equipment input signals outside refer to " starting to refuel ", flame proof aobvious control assembly 2 inputs instruction and refers to the command signals such as " suddenly stopping " instruction, and sensor signal refers to the signals such as pressure signal.Referring to according to setting program process herein: if the pressure of pressure sensor collection is greater than 0.4MPa, then export the control signal of shut electromagnetic valve; If receive the control instruction of " starting to refuel ", then export the control signal opening magnetic valve; If receive " suddenly stopping " instruction, then export the control signal of emergency shutdown pump group.Control unit can adopt single-chip microcomputer, PLC or embedded control chip to load and realize according to the program of prior art according to its function weaving.Signal processing unit is also connected with circuit isolation module 4, and it carries out signal amplification, analog-to-digital conversion, signal shaping and filtering process to the signal of the external equipment from circuit isolation module 4, then sends it to control unit.External equipment herein comprises sensor, executing agency and miscellaneous equipment.Signal processing unit can adopt existing signal amplification circuit, signaling conversion circuit, signal integer circuit, signal filter circuit to form, and to different input signals, the built-up circuit of signal processing unit can adjust.Driver element is also connected with circuit isolation module 4, and driver element amplifies the output signal from control unit, conversion process, then sends it to circuit isolation module 4, and it adopts existing signal amplification circuit and signaling conversion circuit composition.Circuit isolation module 4 receives to the control signal of the transmission of the input signal of external equipment and driver element, above-mentioned signal is isolated, then it is sent to signal processing unit and external equipment respectively, it can adopt power isolation circuit and signal isolation circuit to realize.As required, the optional power supply guard grating of power isolation circuit, to limit the electric current of single group power supply, control signal buffer circuit can adopt the circuit be made up of photoelectric coupling, isolated amplifier etc., and signal of communication buffer circuit can select communication security grid.
The utility model adopts the main box of optimizing structure, and makes full use of body structure inner space, reduces the volume of electric appliance control box, by adopting binding post, achieving external cable and concentrating input and output, being convenient to wiring, maintenance.Adopt control circuit module, be integrated with controlling functions, by the setting of control circuit module, circuit isolation module, enable the input/output signal of electric appliance box to various external equipment process and control, function obtains integrated.What the utility model proposes can have the place of requirement of explosion proof to use various based on the electric appliance control box in flame proof institute.
Claims (10)
1. based on an electric appliance control box for flameproof principle, it is characterized in that: it comprises flameproof cabinet (1), flame proof aobvious control assembly (2), control circuit module (3), circuit isolation module (4) and binding post (5); Wherein, control circuit module (3), circuit isolation module (4) and binding post (5) are arranged in flameproof cabinet (1); Flame proof aobvious control assembly (2) is arranged on flameproof cabinet (1) outside end face, be connected with control circuit module (3), control circuit module (3) is also connected with circuit isolation module (4), circuit isolation module (4) is also connected with external equipment, and binding post (5) is connecting circuit isolation module (4) and external equipment respectively.
2. a kind of electric appliance control box based on flameproof principle according to claim 1, is characterized in that: described flameproof cabinet (1) comprises main box (6), main chamber upper cover (7), wire connection cavity upper cover (8), anti-explosion packing gland (9) and bumper assembly (10); Wherein, the cuboid box-shaped that main box (6) is welded by corrosion resistant plate, comprise main chamber (11) and wire connection cavity (12), control circuit module (3) and circuit isolation module (4) are arranged in main chamber (11); Binding post (5) is arranged in wire connection cavity (12).
3. a kind of electric appliance control box based on flameproof principle according to claim 2, it is characterized in that: back and the sidewall in described main chamber (11) are equipped with fixed head (16), and control circuit module (3) and circuit isolation module (4) are arranged on fixed head (16).
4. a kind of electric appliance control box based on flameproof principle according to claim 2, is characterized in that: described main chamber upper cover (7) is monoblock corrosion resistant plate, and be arranged on main box (6) front end face top, upper cover offers multiple hole; Upper exterior surface is provided with handle, and inner surface is provided with chute, is provided with a circle rubber ring near the edge of inner surface.
5. a kind of electric appliance control box based on flameproof principle according to claim 2, it is characterized in that: described wire connection cavity upper cover (8) is monoblock corrosion resistant plate, be arranged on main box (6) front end face bottom, outer surface is provided with handle, is provided with a circle rubber ring near inner surface edge.
6. a kind of electric appliance control box based on flameproof principle according to claim 2, it is characterized in that: described anti-explosion packing gland (9) is arranged on main box (6) bottom, it is explosion-proof armouring stuffing-box, adopt multilayer gland structure, it is inner that explosion-proof filler is filled in anti-explosion packing gland (9).
7. a kind of electric appliance control box based on flameproof principle according to claim 2, it is characterized in that: described bumper assembly (10) is arranged on main box (6) rear portion end face, be made up of damper (14) and installing plate (15), damper (14) is fixedly connected with main box (6), installing plate (15); Damper (14) selects steel rope damper or rubber absorbers.
8. a kind of electric appliance control box based on flameproof principle according to claim 1, is characterized in that: described flame proof aobvious control assembly (2) is made up of aobvious control elements and proof assembl.
9. a kind of electric appliance control box based on flameproof principle according to claim 1, is characterized in that: described control circuit module (3) comprises power subsystem, control unit, signal processing unit and driver element; Wherein, power subsystem is connected with control unit, signal processing unit, driver element and external equipment; Control unit is also aobvious with signal processing unit, driver element and flame proof to be controlled assembly and is connected, and signal processing unit is also connected with circuit isolation module (4); Driver element is also connected with circuit isolation module (4).
10. a kind of electric appliance control box based on flameproof principle according to claim 9, it is characterized in that: described control unit adopts single-chip microcomputer, PLC or embedded control chip to realize, signal processing unit adopts existing signal amplification circuit, signaling conversion circuit, signal integer circuit, signal filter circuit to realize, driver element adopts signal amplification circuit and signaling conversion circuit to realize, and power subsystem adopts power switch, transformer and power panel to realize.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106994285A (en) * | 2015-11-26 | 2017-08-01 | 日本派欧尼株式会社 | electrical installation unit |
CN112055494A (en) * | 2020-09-09 | 2020-12-08 | 深圳市尚为照明有限公司 | Explosion-proof emergency power supply device |
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2015
- 2015-03-02 CN CN201420746305.2U patent/CN204302748U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106994285A (en) * | 2015-11-26 | 2017-08-01 | 日本派欧尼株式会社 | electrical installation unit |
CN112055494A (en) * | 2020-09-09 | 2020-12-08 | 深圳市尚为照明有限公司 | Explosion-proof emergency power supply device |
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