CN110661232B

CN110661232B - Three-phase multifunctional protector

Info

Publication number: CN110661232B
Application number: CN201911116971.1A
Authority: CN
Inventors: 刘耀龙
Original assignee: Microelectronics Union Hubei Technology Co ltd
Current assignee: Microelectronics Union Hubei Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2022-04-12
Anticipated expiration: 2039-11-15
Also published as: CN110661232A

Abstract

The invention discloses a three-phase multifunctional protector, and belongs to the technical field of electronics. A three-phase multifunctional protector comprises a shell, a control assembly, a cover opening assembly and a locking assembly; the invention is matched with a plastic shell type air circuit breaker with high section capacity to form the plastic shell type air circuit breaker with low price, small volume, light weight and excellent performance, and is a reasonable choice for ship design, manufacture and use departments. The cover opening assembly is arranged in the shell, and the cover opening assembly is driven to control the opening and closing of the cover opening assembly, so that the maintenance of a protection circuit in the shell and the replacement of electronic elements are facilitated, and the problems that a traditional protector is large in size, heavy in weight and inconvenient to install in a place with dense equipment are avoided. The locking assembly is arranged on the front side of the shell, and can be used for locking a lead connected with equipment such as a current transformer, a voltage transformer and the like, so that the lead is prevented from being broken due to vibration stress generated by ship navigation, and the normal operation of the invention is ensured.

Description

Three-phase multifunctional protector

Technical Field

The invention relates to the technical field of electronics, in particular to a three-phase multifunctional protector.

Background

At present, middle-size and small-size boats and ships main distribution board adopts frame-type air circuit breaker mostly, as the protection switch of generator, when electric wire netting transmission or load stowage are unbalanced, the input of power transmission to consumer easily produces the abnormal power supply condition such as lack of phase, excessive pressure or undervoltage, for guaranteeing three-phase load's normal operating, current relay is adopted usually, voltage relay, time relay, thermal protection relay, lack looks protector and earth-leakage protector carry out the undervoltage to three-phase load, the decompression, excessive pressure and lack the looks protection, because the low-voltage apparatus component that above mode adopted is many, the wiring is complicated, occupy a large amount of quotation installation space, and the function is still imperfect, the commonality is not strong, thereby restricted its use widely. In view of this, we propose a three-phase multifunctional protector.

Disclosure of Invention

1. Technical problem to be solved

The present invention is directed to a three-phase multifunctional protector, which solves the above problems.

2. Technical scheme

A three-phase multifunctional protector comprises a shell, a control assembly, a cover opening assembly and a locking assembly;

the control assembly is arranged on the upper part of the shell and is used for installing the control module;

the cover opening assembly is arranged in the shell, is fixedly connected with the control assembly and is used for operating the control assembly to open and close;

the locking assembly is arranged at the lower end of the front side of the shell and used for locking the lead.

Preferably, the inside cavity of casing forms the installation cavity, the subassembly that uncaps sets up in the installation cavity, the spread groove has been seted up to casing front side lower extreme, locking component sets up in the spread groove, the radiating groove has been seted up to the casing outer wall, radiating groove and installation cavity intercommunication, and the heat dissipation fan is installed to the radiating groove.

Preferably, the control assembly is including setting up in the inboard roof in casing upper portion, the size of roof size and the inboard size of size looks adaptation in casing upper portion, just two spring pins are installed to the roof front end symmetry, the cooperation of the cotter way joint that spring pin and shells inner wall were seted up.

Preferably, still install the display screen on the roof, the pilot lamp is installed to display screen one side, a plurality of control keys are installed to the pilot lamp front side, the prompt board is installed to control key one side, be carved with the instructions on the prompt board, display screen, pilot lamp and control key all are connected with the protection circuit who installs in the installation intracavity through the wire.

Preferably, the cover opening assembly comprises a connecting rod arranged in the mounting cavity, two supporting seats are symmetrically arranged at the end parts of two sides of the connecting rod, the inner wall of the lower end of each supporting seat is tightly welded with the end part of the connecting rod, the top surface of the upper end of each supporting seat is fixed with the bottom surface of the top plate through a fixing screw in a screwed mode, and two guide pillars are welded on the outer wall of the lower end of each supporting seat in an up-down symmetrical structure.

Preferably, a guide plate is arranged on the outer side of the support seat, the guide plate is fixedly arranged on the inner wall of the shell, a guide groove in sliding fit with the guide pillar is formed in the guide plate, the guide groove is a through groove and consists of a vertical guide groove and an arc-shaped guide groove, the lower end of the arc-shaped guide groove is communicated with the middle of the vertical guide groove, and the distance from the lower end of the arc-shaped guide groove to the end part of the vertical guide groove is the same as the distance between the two guide pillars.

Preferably, the subassembly of uncapping still includes the rotary rod that sets up in the casing outside, the rotary rod tip passes casing outer wall and deflector in proper order and inside extends to the inboard and is connected with the transfer line, the transfer line upper end is rotated with the rotary rod tip and is connected, the transfer line lower extreme is connected with the driven lever, the driven lever lower extreme is rotated with the transfer line lower extreme through the round pin axle and is connected, the connecting rod tip is located to the driven lever upper end cover.

Preferably, the locking assembly comprises a locking seat arranged in the connecting groove, a plurality of thread grooves are linearly and equidistantly formed in the locking seat, and tightening screws matched with the thread grooves are arranged in the thread grooves.

Preferably, a wire bundling groove is further formed in the thread groove, the interior of the tightening screw is of a hollow structure, and an avoiding groove is formed in the position, relative to the wire bundling groove, of the tightening screw.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the invention combines with the plastic shell type air circuit breaker with high section capacity to form the engine device with low price, small volume, light weight, excellent performance and perfect protection characteristic, which is a reasonable choice for ship design, manufacture and use departments. The protector can press keys to set the required protection values of undervoltage/overvoltage, pre-alarm, long delay, short delay, over-frequency/under-frequency and inverse power/unloading by only inputting the power value of the generator and the transformation ratio of the current transformer, and the action time of the invention can be changed according to the requirement, and the display screen can be used for displaying the three-phase voltage, the three-phase current, the frequency, the power and the inverse power.

2. The cover opening assembly is arranged in the shell, and the cover opening assembly is driven to control the opening and closing of the cover opening assembly, so that the maintenance of a protection circuit in the shell and the replacement of electronic elements are facilitated, and the problems that a traditional protector is large in size, heavy in weight and inconvenient to install in a place with dense equipment are avoided.

3. The locking assembly is arranged on the front side of the shell, and can be used for locking a lead connected with equipment such as a current transformer, a voltage transformer and the like, so that the lead is prevented from being broken due to vibration stress generated by ship navigation, and the normal operation of the invention is ensured.

Drawings

FIG. 1 is a right side schematic view of the overall structure of the present invention;

FIG. 2 is a left side schematic view of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 4 is a schematic partial structural breakdown of the present invention;

FIG. 5 is a schematic view of the locking assembly of the present invention, shown disassembled;

the reference numbers in the figures illustrate: the heat dissipation device comprises a shell 1, a mounting cavity 101, a connecting groove 102, a heat dissipation groove 103, a heat dissipation fan 104, a control assembly 2, a top plate 201, a spring pin 202, a display screen 203, an indicator light 204, a control key 205, a prompt plate 206, a cover opening assembly 3, a connecting rod 301, a supporting seat 302, a fixing screw 303, a guide pillar 304, a guide plate 305, a guide groove 306, a rotating rod 307, a driving rod 308, a driven rod 309, a pin shaft 310, a locking assembly 4, a locking seat 401, a threaded groove 402, a tightening screw 403, a wire bundling groove 404 and an avoiding groove 405.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

a three-phase multifunctional protector comprises a shell 1, a control component 2, a cover opening component 3 and a locking component 4;

the control assembly 2 is arranged at the upper part of the shell 1 and is used for installing a control module;

the cover opening assembly 3 is arranged in the shell 1, is fixedly connected with the control assembly 2 and is used for operating the control assembly 2 to open and close;

the locking assembly 4 is installed at the lower end of the front side of the housing 1 and used for locking the wire.

The inside cavity of casing 1 forms installation cavity 101, and the subassembly 3 that uncaps sets up in installation cavity 101, and connecting groove 102 has been seted up to 1 front side lower extreme of casing, and locking Assembly 4 sets up in connecting groove 102, and radiating groove 103 has been seted up to 1 outer wall of casing, and radiating groove 103 communicates with installation cavity 101 to install heat dissipation fan 104 in radiating groove 103.

The control assembly 2 comprises a top plate 201 arranged on the inner side of the upper portion of the shell 1, the size of the top plate 201 is matched with the size of the inner side of the upper portion of the shell 1, two spring pins 202 are symmetrically arranged at the front end of the top plate 201, and the spring pins 202 are in clamping fit with pin grooves formed in the inner wall of the shell 1.

The top plate 201 is further provided with a display screen 203, one side of the display screen 203 is provided with an indicator lamp 204, the front side of the indicator lamp 204 is provided with a plurality of control keys 205, one side of each control key 205 is provided with a prompt board 206, the prompt board 206 is carved with operation instructions, and the display screen 203, the indicator lamp 204 and the control keys 205 are all connected with a protection circuit arranged in the installation cavity 101 through wires. It should be noted that the protection circuit of the present invention operates as follows: 1. external signals (current and voltage) pass through a current transformer and a voltage transformer, are subjected to operation processing by a sampling chip HT7038, are processed by a CPU STC8f2k32S, and are driven by a drive IC TM1640 to be displayed on a nixie tube YH-18. 2 the parameters can be adjusted by inputting the high and low levels of the 4 tact switches into the CPU STC8f2k 32S. 3. External signals (current and voltage) pass through a current transformer and a voltage transformer, are subjected to operation processing by a sampling chip HT7038, are compared with a set value by CPU STC8f2k32S operation, and are driven by a driving triode S8050 to drive an over-frequency/under-frequency relay and an inverse power/unloading relay.

Uncap subassembly 3 is including setting up in the inside connecting rod 301 of installation cavity 101, and connecting rod 301 both sides tip symmetry is equipped with two supporting seats 302, and supporting seat 302 lower extreme inner wall and connecting rod 301 tip closely weld, and supporting seat 302 upper end top surface is fixed through set screw 303 and roof 201 bottom surface spiro union to be symmetrical structure welding about supporting seat 302 lower extreme outer wall has two guide pillars 304.

The supporting seat 302 is provided with a guide plate 305 on the outer side, the guide plate 305 is fixedly arranged on the inner wall of the shell 1, a guide groove 306 in sliding fit with the guide pillar 304 is formed in the guide plate 305, the guide groove 306 is a through groove, the guide groove 306 is composed of a vertical guide groove and an arc-shaped guide groove, the lower end of the arc-shaped guide groove is communicated with the middle of the vertical guide groove, and the distance from the lower end of the arc-shaped guide groove to the end of the vertical guide groove is the same as the distance between the two guide pillars 304.

The cover opening assembly 3 further comprises a rotating rod 307 arranged outside the housing 1, the end of the rotating rod 307 sequentially penetrates through the outer wall of the housing 1 and the inside of the guide plate 305 to extend to the inner side and is connected with a driving rod 308, the upper end of the driving rod 308 is rotatably connected with the end of the rotating rod 307, the lower end of the driving rod 308 is connected with a driven rod 309, the lower end of the driven rod 309 is rotatably connected with the lower end of the driving rod 308 through a pin shaft 310, and the upper end of the driven rod 309 is sleeved on the end of the connecting rod 301. It is noted that the driving rod 308 and the driven rod 309 are arranged in a V-shape in the present invention.

The locking assembly 4 includes a locking seat 401 disposed in the connecting groove 102, the locking seat 401 is linearly and equidistantly provided with a plurality of thread grooves 402, and the thread grooves 402 are provided with tightening screws 403 engaged with the threads thereof.

A binding groove 404 is further formed in the thread groove 402, the interior of the tightening screw 403 is of a hollow structure, and an avoiding groove 405 is formed in the position, opposite to the binding groove 404, of the tightening screw 403.

The working principle of the cover opening assembly 3 is as follows: rotating the rotating rod 307, the end of the rotating rod 307 drives the transmission rod 308, the transmission rod 308 drives the driven rod 309 to rotate around the pin shaft 310, at this time, the upper end of the driven rod 309 pushes the connecting rod 301, the connecting rod 301 drives the two supporting bases 302 to respectively slide upwards on the guiding plates 305, after the guiding post 304 positioned at the upper side rises to the upper end of the vertical guiding slot, the transmission rod 308 drives the driven rod 309 to rotate, at this time, the guiding post 304 positioned at the lower side enters the arc-shaped guiding slot, and the top plate 201 rotates along with the supporting base 302, so that the top plate 201 is opened from the inner side of the upper part of the housing 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A three-phase multifunctional protector is characterized in that: comprises a shell (1), a control component (2), a cover opening component (3) and a locking component (4);

the control assembly (2) is arranged at the upper part of the shell (1) and is used for installing a control module;

the cover opening assembly (3) is arranged in the shell (1), is fixedly connected with the control assembly (2) and is used for operating the control assembly (2) to open and close;

the locking assembly (4) is arranged at the lower end of the front side of the shell (1) and used for locking a wire;

the cover opening assembly (3) comprises a connecting rod (301) arranged in the installation cavity (101), two supporting seats (302) are symmetrically arranged at the end parts of two sides of the connecting rod (301), the inner wall of the lower end of each supporting seat (302) is tightly welded with the end part of the connecting rod (301), the top surface of the upper end of each supporting seat (302) is fixedly connected with the bottom surface of the top plate (201) through a fixing screw (303), and two guide columns (304) are welded on the outer wall of the lower end of each supporting seat (302) in an up-and-down symmetrical structure;

a guide plate (305) is arranged on the outer side of the supporting seat (302), the guide plate (305) is fixedly arranged on the inner wall of the shell (1), a guide groove (306) in sliding fit with the guide post (304) is formed in the guide plate (305), the guide groove (306) is a through groove, the guide groove (306) is composed of a vertical guide groove and an arc-shaped guide groove, the lower end of the arc-shaped guide groove is communicated with the middle of the vertical guide groove, and the distance from the lower end of the arc-shaped guide groove to the end part of the vertical guide groove is the same as the distance between the two guide posts (304);

uncap subassembly (3) still including setting up in rotary rod (307) in casing (1) outside, rotary rod (307) tip passes casing (1) outer wall and deflector (305) inside and extends to the inboard and is connected with transfer line (308) in proper order, transfer line (308) upper end is rotated with rotary rod (307) tip and is connected, transfer line (308) lower extreme is connected with follower lever (309), follower lever (309) lower extreme is rotated through round pin axle (310) and transfer line (308) lower extreme and is connected, connecting rod (301) tip is located to follower lever (309) upper end cover.

2. A three-phase multifunctional protector according to claim 1, characterized in that: casing (1) inside cavity forms installation cavity (101), the subassembly (3) of uncapping sets up in installation cavity (101), spread groove (102) have been seted up to casing (1) front side lower extreme, locking Assembly (4) set up in spread groove (102), radiating groove (103) have been seted up to casing (1) outer wall, radiating groove (103) and installation cavity (101) intercommunication, and install heat dissipation fan (104) in radiating groove (103).

3. A three-phase multifunctional protector according to claim 2, characterized in that: the control assembly (2) is including setting up in roof (201) of casing (1) upper portion inboard, the size of a dimension of roof (201) and the inboard size of a dimension of casing (1) upper portion looks adaptation, just two spring catch (202) are installed to roof (201) front end symmetry, spring catch (202) and the cotter way joint cooperation that casing (1) inner wall was seted up.

4. A three-phase multifunctional protector according to claim 3, characterized in that: still install display screen (203) on roof (201), pilot lamp (204) are installed to display screen (203) one side, a plurality of control key (205) are installed to pilot lamp (204) front side, prompt board (206) are installed to control key (205) one side, be carved with the service instruction on prompt board (206), display screen (203), pilot lamp (204) and control key (205) all are connected with the protection circuit who installs in installation cavity (101) through the wire.

5. A three-phase multifunctional protector according to claim 1, characterized in that: locking subassembly (4) are including setting up locking seat (401) in connecting groove (102), it has seted up a plurality of thread grooves (402) to be linear equidistant on locking seat (401), be equipped with in thread groove (402) rather than screw-thread fit's shrink screw (403).

6. A three-phase multifunctional protector according to claim 5, characterized in that: still be equipped with beam line groove (404) in thread groove (402), tightening screw (403) are inside hollow structure, just avoidance groove (405) has been seted up to the position of tightening screw (403) relative beam line groove (404).