CN113299500A

CN113299500A - Low-cost circuit on-off controller

Info

Publication number: CN113299500A
Application number: CN202110688923.0A
Authority: CN
Inventors: 李雷夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-08-24
Also published as: WO2022267352A1; CN115917689A

Abstract

The invention provides a low-cost circuit on-off controller, which comprises a shell and a contact box, wherein the contact box comprises a fixed contact part, a movable contact part, an execution part and a connecting part, the contact box is detachably assembled on the shell through the connecting part, the fixed contact part is provided with more than one group of fixed contacts, the movable contact part is provided with a movable contact which can be contacted with and separated from the more than one group of fixed contacts, and the execution part acts on the movable contact to enable the movable contact to be contacted with and separated from the fixed contacts so as to open and close different energizing paths. The invention has the advantages of high integration level and convenient use, the contact part is modularly designed into the contact box, the contact box and the shell are detachably connected together by adopting a split structure, and once a fault is generated due to the contact problem during use, the whole on-off controller does not need to be replaced, the use can be recovered by directly replacing a new contact box, and the electrical maintenance cost is greatly reduced.

Description

Low-cost circuit on-off controller

Technical Field

The invention belongs to the technical field of circuit on-off control equipment, and particularly relates to a low-cost circuit on-off controller.

Background

In modern manufacturing plants, a great deal of various automatic control devices are used, and the control operation of the automatic devices uses a great number of electric control components, wherein the most used, most common and most common automatic control devices are various control relays and contactors which are respectively used for controlling the on-off of signals and electric power loops, so that the circuits achieve various control logics set as expected.

Generally, the life of relays and contactors is generally determined by the life of their electrical contacts, and once contact erosion or wear occurs, the performance of the relays and contactors must be greatly affected, and repair or replacement of the contacts is considered to restore the performance of the relays or contactors. The existing traditional relay and contactor have the advantages that the electric contact of the traditional relay and contactor is connected with the relay and the contactor body into an integral structure, the traditional relay and contactor cannot be detached and replaced independently, the relay or the contactor must be replaced integrally when the contact is replaced, and the use cost of a user is wasted.

In addition, the current commercially available relays and contactors can only correspond to a single input voltage, and when the input voltage changes due to circuit changes, original hardware cannot be used continuously, so that resource waste is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the low-cost circuit on-off controller, the contact part is designed in a modularized manner, the contact box and the shell adopt a split structure, when in use, once a fault is generated due to the contact problem, the whole on-off controller does not need to be replaced, and the on-off controller can be recovered to be used only by directly replacing a new contact box, so that the low-cost circuit on-off controller has the advantages of low cost and simplicity in operation.

In order to achieve the above object, the present invention provides a low-cost on-off controller for an electric circuit, comprising a housing and a contact box including a fixed contact portion, a movable contact portion, an actuator portion and a connecting portion, the contact box being detachably attached to the housing through the connecting portion, wherein the fixed contact portion has one or more fixed contacts, the movable contact portion has a movable contact capable of contacting with and separating from the one or more fixed contacts, and the actuator portion acts on the movable contact to contact with and separate from the fixed contact to open and close different energizing paths.

As another embodiment of the present invention, the contact box further includes an elastic portion for resetting the actuator.

As another specific embodiment of the present invention, the contact box has a first wall and a second wall facing each other, and the actuator and the elastic portion are located between the first wall and the second wall, wherein the actuator is capable of pressing and releasing the elastic portion while sliding reciprocally between the first wall and the second wall, and the movable contact is provided on the actuator.

In another embodiment of the present invention, the fixed contact and the movable contact are arranged in this order in the sliding direction of the actuator.

The scheme can be provided with two or more fixed contacts, and the two or more fixed contacts are linearly distributed along the sliding direction of the executing part and/or are linearly distributed along the direction perpendicular to the sliding direction of the executing part; the actuating part can slide along the actuating part, and the actuating part can slide along the actuating part.

As another specific embodiment of the present invention, the contact box further includes a limiting portion, the limiting portion is located in the contact box and cooperates with an outer wall of the contact box to form a sliding slot, and the actuating portion is always located in the sliding slot.

As another embodiment of the present invention, the connection portion and the housing are connected by inserting, clamping, locking, magnetic and/or screw fitting.

As another embodiment of the present invention, the housing is provided with a movable portion, and the outer wall of the contact box is provided with a first through groove, wherein the movable portion or the actuating portion can penetrate through the first through groove and the movable portion and the actuating portion are detachably connected together.

In another embodiment of the present invention, an electromagnet capable of operating the movable portion is disposed in the housing, and when the electromagnet is energized, the electromagnet can drive the movable portion to operate to drive the actuating portion.

In another embodiment of the present invention, the movable portion drives the actuator in a rotational mode or a push-pull mode.

As another specific embodiment of the present invention, the electromagnetic switch further includes a selection switch for adapting the voltage of the circuit connected to the electromagnet, and the selection switch is mounted on the housing and is used for switching the resistance value of the circuit connected to the electromagnet.

The invention has the following beneficial effects:

according to the invention, the contact part is in a modular design, the contact box and the shell are in a split structure and are detachably connected together, so that once a fault is generated due to a contact problem during use, the whole on-off controller does not need to be replaced, the use can be recovered only by directly replacing a new contact box, the shell part, particularly an electromagnet assembly, can be better reserved, the generation of waste is reduced, and the cost of electrical maintenance is greatly reduced.

The contact box provided by the invention has the advantages of convenience in use and high integration level, the contact box is quickly connected with the shell of the on-off controller through the connecting part, the assembly and replacement processes are facilitated, all contacts are positioned in the contact box, the overall structure is compact, the movable contact is in contact with and separated from the fixed contact in the contact box to open and close different power-on paths, the modularization degree is high, and the popularization and the use are facilitated.

The invention is provided with the selector switch, can adaptively adjust different input control voltages, does not need to replace control relays or contactors with different voltage grades, can select different input control voltages through the selector switch, can be continuously used when the circuit voltage is changed, does not need to replace new products, can be used when an electric cabinet is transformed and upgraded, and has optimal cost.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the structure of an embodiment 1 of the on-off control of the present invention;

FIG. 2 is a schematic diagram of the structure of embodiment 1 of the on-off control of the present invention;

FIG. 3 is a schematic structural diagram of a case in embodiment 1 of the on-off control of the present invention;

FIG. 4 is a side schematic view of FIG. 3;

FIG. 5 is a schematic view of the structure of a contact box in embodiment 1 of the on-off controller of the present invention;

FIG. 6 is a schematic right side view of FIG. 5 showing a distribution of contacts;

FIG. 7 is a right side schematic view of FIG. 5 showing another contact distribution;

FIG. 8 is a voltage selection schematic of embodiment 1 of the on-off control of the present invention;

FIG. 9 is a schematic diagram of the construction of embodiment 2 of the on-off control of the present invention;

FIG. 10 is a schematic diagram of the construction of embodiment 2 of the on-off control of the present invention;

FIG. 11 is a schematic view showing contacts in embodiment 2 of the on-off controller of the present invention;

fig. 12 is a schematic diagram of voltage selection in embodiment 2 of the on-off controller of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, as used herein, refer to and are used in a descriptive sense only and not for purposes of limitation, the terms "upper", "lower", "left", "right", and the like are used in a descriptive sense only and are not intended to indicate or imply that the referenced device or feature must have a particular orientation, configuration, and operation in a particular orientation; accordingly, the scope of the invention is not limited to the specific embodiments disclosed below.

Example 1

The embodiment provides an on-off controller, in particular to a relay, which comprises a shell 100 and a detachable contact box 200 as shown in figures 1-8;

the housing 100 provides a mounting structure for mounting the entire on-off controller, and the mounting structure of the housing 100 in the present embodiment is suitable for the prior art and will not be described herein.

The contact box 200 provides replaceable contacts, wherein the contact box 200 is provided with a connecting part 210, the housing 100 is provided with a connecting matching part 110, and the connecting part 210 and the housing 100 can be connected in a plug-in fit, a clamping fit, a locking fit, a magnetic fit and/or a threaded fit;

in this embodiment, the connecting portion 210 includes two connecting locking lugs 211 and an lug seat 212 having a threaded hole, two connecting locking slots 111 and a threaded hole 112 are provided on the housing 100, the two connecting locking lugs 211 are first matched with the two connecting locking slots 111, and then the two connecting locking lugs are passed through the two threaded holes for locking by a connecting bolt, so as to fixedly mount the contact box 200 on the housing 100, the connecting portion 210 is intended to mount the contact box 200 on the housing 100, and other mounting manners capable of mounting the contact box 200 on the housing 100 are also possible, which are not listed here.

The contact box 200 further includes a fixed contact part 220, a movable contact part 230, an actuator part 240, and an elastic part 250;

the fixed contact part 220 is provided with more than one group of fixed contacts 221, and each group of fixed contacts 221 comprises a fixed common end contact 221-1, a fixed normally open contact 221-2 and a fixed normally closed contact 221-3; the movable contact point portion 230 has movable contacts 231 that can be brought into contact with and separated from the one or more sets of fixed contacts 221, and each set of movable contacts 231 includes a movable common-end contact 231-1, a movable normally-open contact 231-2, and a movable normally-closed contact 231-3.

The actuator 240 acts on the movable contact 231 to make the movable contact 231 contact with and separate from the fixed contact 221 to open and close different conducting paths, and the switching process is as shown in fig. 1-2, specifically, in fig. 1, the fixed normally closed contact 221-3, the movable normally closed contact 231-3, the movable common end contact 231-1, and the fixed common end contact 221-1 form a conducting loop, in fig. 2, the movable contact 230 acts under the action of the actuator 240, and in fig. 2, the fixed normally open contact 221-2, the movable normally open contact 231-2, the movable common end contact 231-1, and the fixed common end contact 221-1 form a conducting loop.

Different numbers of contact terminals may be provided in this embodiment depending on the particular use, as shown in fig. 6-7, wherein the structure of fig. 6 is adapted for a relatively small current-carrying capacity having four sets of fixed contacts 221 and four sets of movable contacts 231, and the structure of fig. 7 is adapted for a relatively large current-carrying capacity having two sets of fixed contacts 221 and two sets of movable contacts 231.

As shown in fig. 5, the contact box 200 is a square shape as a whole, and has a first wall 201 and a second wall 202 facing each other up and down, an actuator 240 and an elastic portion 250 are located between the first wall 201 and the second wall 202, the actuator 240 is preferably a slide actuator, a movable contact 231 on the movable contact 230 is provided on the actuator 240, the elastic portion 250 is preferably a spring, and the actuator 240 can press and release the elastic portion 250 while sliding back and forth between the first wall 201 and the second wall 202.

Accordingly, a cut-out groove 241 is provided at the lower end of the actuator 240, one end of the elastic part 250 is located in the cut-out groove 241, the other end of the elastic part 250 abuts against the second wall 202, and the elastic part 250 is always in a compressed state.

Further, the fixed contacts 220 are arranged in the sliding direction of the actuator 240 in a row of the fixed contacts 221, and the movable contacts 230 are arranged in the sliding direction of the actuator 240 in a row of the movable contacts 231, i.e., in the vertical direction in the drawing.

Still further, the contact box 200 in this embodiment further includes a limiting portion for limiting the up-and-down sliding of the actuating portion 240, the limiting portion is preferably located in the contact box 200 and cooperates with the left sidewall of the contact box 200 to form a sliding slot, the actuating portion 240 is always located in the sliding slot, and in other examples, the limiting portion may also be a rail structure.

In order to forcibly switch different current-carrying paths, in another example of the present invention, a contact non-electric state closing and holding mechanism may be further provided on the contact box 200, for example, a self-reset mechanical button (protruding out of the first wall 201) is provided at the upper end of the actuator 240, and the button is pressed to switch the current-carrying state, which is particularly suitable for performing related operations during circuit fault inspection or device fault inspection.

The casing 100 in this embodiment provides a power source for the execution portion 240 to slide, and the specific structure is as shown in fig. 3, and the specific structure includes a bracket 120, a first spring 130, an electromagnet 140, and a movable portion 150, and the specific movable portion 150 is an armature oscillating bar, where the bracket 120 is vertically disposed in the casing 100, one end of the armature oscillating bar is hinged to the bracket 120, and one end of the armature oscillating bar is connected to the casing 100 through the first spring 130, the electromagnet 140 is located on the casing 100, and the armature oscillating bar is located above the electromagnet 140, and when the electromagnet 140 is powered on, the armature oscillating bar can be pulled in to rotate the armature oscillating bar.

Specifically, a first through groove 203 is formed in the left side wall of the contact box 200, a groove 246 is formed in the executing portion 240 close to the first through groove 203, a second through groove 101 matched with the first through groove 203 in shape is formed in the case 100 close to the first through groove 203, the other end of the armature oscillating bar penetrates through the second through groove 101, the first through groove 203 and the groove 246 to be in inserting fit, the armature oscillating bar is connected with the executing portion 240, and reciprocating oscillation of the armature oscillating bar is converted into up-and-down sliding of the executing portion 240.

The casing 100 in this embodiment further includes a selector switch for adapting the voltage of the circuit connected to the electromagnet 140, the selector switch is installed on the casing 100 to change the resistance of the circuit connected to the circuit, and the selectable gear of the selector switch is determined according to the requirement, specifically, as shown in the four diagrams in fig. 8, where the selector switch is a knob switch, and the voltage corresponding to different numbers, for example, the original control circuit voltage is 12 volts, and is changed into 24 volts after transformation, and if the selector switch is a general control relay, the original 12 volt relay must be replaced by a new 24 volt relay, and in this embodiment, the selector switch is only required to be adjusted from "12" to "24" for normal use, thereby avoiding the replacement of the relay, and greatly saving the cost. The resistance value of the access circuit is changed by rotating the selection switch, and when the external voltage is changed, the proper voltage can be selected through the corresponding voltage gear to supply the coil for normal use.

Example 2

The present embodiment provides an on-off controller, specifically a contactor, as shown in fig. 9 to 12, including a housing 300 and a detachable contact box 400, the main differences between the present embodiment and embodiment 1 are that the connection mode is different and the driving mode of an executing part is different, other structures not involved only need to be adapted on the basis of embodiment 1 or the prior art, and the following contents of the present embodiment mainly address different points.

Wherein, the contact box 400 is provided with a connecting portion 410, the housing 300 is provided with a connecting matching portion, the contact box 400 and the housing 300 are connected in a screw-thread matching manner, as shown in fig. 9, the connecting portion 410 in this embodiment includes two connecting locking lugs 411, each connecting locking lug 411 is provided with a screw hole or a through hole, the housing 300 is provided with two lug seats 311, each lug seat 311 is provided with a screw hole or a through hole, and the contact box 400 is fixedly mounted on the housing 300 by means of, for example, bolts.

The contact box 400 further includes a fixed contact part 420, a movable contact part 430, an actuator part 440, and an elastic part 450;

wherein the fixed contact part 420 has more than one set of fixed contacts 421, the movable contact part 430 has movable contacts 431 capable of contacting with and separating from the more than one set of fixed contacts 421, the fixed contacts 421 and the movable contacts 431 which are matched with each other are preferably arranged up and down, the executive part 440 acts on the movable contacts 431 to make the movable contacts 431 contact with and separate from the fixed contacts 421 so as to open and close different conducting paths;

the actuator 440 is preferably a slide actuator 440, the movable contact 431 of the movable contact 430 is disposed on the actuator 440, the elastic member 450 is preferably a spring, and the actuator 440 can press and release the elastic member 450 while reciprocating up and down.

Further, the contact box 400 in the present embodiment is located above the chassis 300 as a whole, the actuating portion 440 is T-shaped, the actuating portion 440 has a horizontal supporting portion 441 and a vertical sliding portion 442, the movable contacts 431 on the movable contact portion 430 are preferably distributed on the supporting portion 441 in a horizontal array, and the number of contact terminals may be set according to specific use cases, for example, three sets of cases shown in fig. 10; a spring (elastic portion) is fitted over the sliding portion 442, and both ends of the spring are respectively in contact with the support portion 441 and the second wall 402 of the contact case 400, and the spring is always in a compressed state.

Still further, the housing 300 in this embodiment provides a power source for the sliding of the executing portion 440, and a specific structure is as shown in fig. 9, a sliding slot 310, a second spring 320, an electromagnet 330 and a movable portion 340 are arranged in the housing 300, wherein the movable portion 340 is an armature slider, the armature slider is slidably arranged in the sliding slot 310 up and down, two ends of the second spring 320 are respectively abutted against the electromagnet 330 and the armature slider, wherein a lower end of the sliding portion 442 penetrates out of the contact box 400 (specifically, a second hole portion is arranged on the contact box 400) to be connected with the armature slider, specifically, for example, a clamping manner of an inverted T-shaped block shown in fig. 9 is adopted, in other examples, a connecting manner of a dovetail groove 350 may also be adopted to form a connecting structure convenient to detach, as shown in fig. 10.

In the non-energized state, the electromagnet 330 does not generate an acting force on the armature slider, the armature slider is kept at the uppermost end of the sliding chute 310 under the action of the second spring 320, and a normally open contact (which may not be available) in the fixed contact part 420 is connected into the circuit or the circuit is disconnected; in a power-on state, the electromagnet 330 generates acting force on the armature slider, the armature slider overcomes the action of the second spring 320 and slides to be attracted with the electromagnet 330, at the moment, the armature slider drives the execution part 440 to slide downwards integrally, and the normally closed contact in the fixed contact part 420 is connected into a circuit; in this way, by controlling whether the electromagnet 330 is energized or not, the reciprocating slide of the armature slider is converted into the vertical slide of the actuator 440, and the movable contact 431 and the fixed contact 421 are brought into contact with and separated from each other to open and close different energization paths.

As shown in fig. 11, in this embodiment, more than one set of auxiliary normally open and normally closed contacts 460 may be provided to be used as contacts of the conduction control circuit.

The housing 300 in this embodiment further includes a selection switch for adapting the voltage of the circuit accessed by the electromagnet 330, the selection switch is installed on the housing 300 to change the resistance value of the accessed circuit, the gear position selectable by the selection switch is determined according to the requirement, specifically, as shown in the three diagrams in fig. 12, wherein the selection switch is a shift switch, the voltage corresponding to different numbers, for example, the voltage of the original main control circuit is 110 v, and is changed into 220 v after transformation, if the selection switch is a general contactor, the original 110 v contactor must be replaced by a new 220 v contactor, and the embodiment can be normally used only by selecting the selection switch as "220", thereby avoiding the replacement of the contactor, and greatly saving the cost. The resistance value of the access circuit is changed by switching the selection switch, and when the external voltage is changed, the proper voltage can be selected through the corresponding voltage gear to supply the coil for normal use.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

1. A low-cost on-off controller for an electric circuit, comprising a housing and a contact box, wherein the contact box comprises a fixed contact part, a movable contact part, an actuator part and a connecting part, the contact box is detachably assembled on the housing through the connecting part, the fixed contact part comprises more than one set of fixed contacts, the movable contact part comprises movable contacts capable of contacting with and separating from the more than one set of fixed contacts, and the actuator part acts on the movable contacts to make the movable contacts contact with and separate from the fixed contacts so as to open and close different energizing paths.

2. The low cost on-off circuit controller of claim 1 wherein said contact box further comprises a spring for resetting said actuator.

3. The low-cost on-off circuit controller according to claim 2, wherein said contact box has a first wall and a second wall facing each other, said actuator and said elastic portion are located between said first wall and said second wall, wherein said actuator is capable of pressing and releasing said elastic portion while sliding reciprocally between said first wall and said second wall, and said movable contact is provided on said actuator.

4. The low-cost on-off circuit controller according to claim 1, wherein said fixed contact and said movable contact are arranged in order in a sliding direction of said actuator.

5. The low-cost on-off circuit controller according to claim 1, wherein said contact housing further comprises a limiting portion, said limiting portion being located within said contact housing and cooperating with an outer wall of said contact housing to form a slide slot, said actuating portion being located within said slide slot at all times.

6. The low-cost circuit on-off controller of claim 1, wherein the connection portion is connected to the housing in a plug-fit, snap-fit, magnetic, and/or threaded engagement.

7. The low-cost on-off circuit controller according to claim 1, wherein said housing is provided with a movable portion, and an outer wall of said contact box is provided with a first through-groove therethrough, wherein said movable portion or said actuator portion can pass through said first through-groove and said movable portion and said actuator portion are detachably connected together.

8. The low-cost on-off circuit controller according to claim 7, wherein an electromagnet capable of operating said movable portion is provided in said housing, and when said electromagnet is energized, said movable portion is driven to operate to drive said actuator.

9. The low-cost on-off circuit controller according to claim 8, wherein said movable portion drives said actuator in a rotating manner or a push-pull manner.

10. The low-cost on-off circuit controller according to claim 1, further comprising a selection switch for adapting a voltage level of a circuit connected to said electromagnet, said selection switch being mounted on said housing for switching a resistance value of said circuit connected thereto.