CN207517632U - Auto-manual moment trip switch - Google Patents

Abstract

This application involves field of electronic devices, a kind of auto-manual moment trip switch are disclosed, including the first relay assembly and the second relay assembly；Wherein, the first relay assembly includes first coil, sliding block, the first elastomeric element, the first contact and the second contact；It is provided on sliding block for the locking structure of lock slider position；First contact and sliding block physical connection；First and second contacts are electrically connected external circuit；Second relay assembly includes the second coil, the second elastomeric element and locks bar.Pass through the mutual cooperation of two relay assemblies, the auto switching of switch is realized, and it is all stable state to switch on and off, it is only necessary to which leading to electricity when state changes can be with, the state being switched on or switched off is maintained all not need to lasting energization, substantially increases the service life of relay.In addition with manual ON and the function of disconnecting.

Description

Manual-automatic integrated instant unhooking switch

Technical Field

The present application relates to the field of electronic devices, and more particularly, to electronic switching technology.

Background

A protection socket, also known as a leakage protection socket, is one of leakage switches. The switch can be automatically switched off as long as electric leakage, short circuit, current exceeding rated current, electric arc and the like in the circuit are detected.

An air switch, also known as an air circuit breaker, is one type of circuit breaker. The switch can be automatically switched off as long as the current in the circuit exceeds the rated current.

Air switches and protective sockets are very important electrical appliances in low-voltage distribution networks and electric traction systems, and integrate control and various protective functions.

The problem with air switches and protective sockets is that once disconnected, they can only be manually restored, cannot be automatically restored, and even cannot be restored by remote control.

The inventors of the present application have found that although relays can be used as an alternative to incorporating some sensors and control circuitry to achieve automatic turn-off and turn-on, relays can generally be put into one state when their coils are energized and maintained in another state when the coils are not energized. One of the states must be at the expense of a long energization of the relay coil if both the on and off are likely to be maintained for a long time. This results in a serious reduction in the life of the relay and a waste of electric power.

Disclosure of Invention

The application aims to provide a manual-automatic integrated instant unhooking switch, which realizes the automatic on-off of the switch, and the on-off state of the switch is maintained without continuous electrification.

In order to solve the above problems, the present application discloses a manual-automatic integrated momentary disconnect switch, comprising a first relay assembly and a second relay assembly; wherein,

the first relay assembly includes a first coil, a slider, a first elastic member, a first contact, and a second contact; the sliding block is provided with a locking structure for locking the position of the sliding block; the first contact is physically connected with the sliding block; the first and second contacts are electrically connected to an external circuit, respectively;

the second relay assembly includes a second coil, a second elastic member, and a lock-in lever;

when the first coil is electrified, the elastic force of the first elastic component is overcome, the sliding block is driven to slide, so that the first contact and the second contact are electrically conducted, at the moment, the locking structure moves to the front of the lock-in rod, and the lock-in rod extends into the locking structure under the driving of the second elastic component, so that the position of the sliding block is locked;

when the second coil is electrified, the elasticity of the second elastic component is overcome, the lock-in rod is driven to exit the locking structure, and the sliding block slides reversely under the drive of the first elastic component, so that the first contact and the second contact are disconnected.

In a preferred embodiment, the slide block further comprises a first button disposed on one side of the slide block, the first button pushes the slide block to slide when being pressed, so that the first and second contacts are electrically conducted, at the moment, the locking structure moves to the front of the lock-in rod, and the lock-in rod extends into the locking structure under the driving of the second elastic component to lock the position of the slide block.

In a preferred embodiment, a third resilient member is included, physically coupled to the first button, for urging the first button back to the predetermined position when the first button is released.

In a preferred embodiment, the lock-in device further comprises a second button arranged on one side of the lock-in rod, when the second button is pressed, the lock-in rod is pushed to exit the locking structure, and the sliding block slides reversely under the driving of the first elastic component, so that the first contact and the second contact are disconnected.

In a preferred embodiment, the lock-in lever has a first inclined surface at a middle portion thereof, and the second button has a second inclined surface at an end thereof, and the second button is pushed by the first inclined surface to withdraw the lock-in lever from the locking structure.

In a preferred embodiment, the button further comprises a fourth resilient member physically connected to the second button for urging the second button to return to the predetermined position when the second button is released.

In a preferred embodiment, the first elastic member and the second elastic member are springs.

In a preferred embodiment, the locking structure is an aperture shaped and sized to mate with the lock-in stem.

In a preferred embodiment, the control circuit is electrically connected to the first and second coils to control the electrical connection and disconnection of the first and second coils.

In a preferred example, the device further comprises a wireless receiving circuit, which is electrically connected with the control circuit, and is used for receiving the control command of the switch in a wireless mode and outputting the control command to the control circuit to control the electrical connection and disconnection of the first coil and the second coil.

Compared with the prior art, the embodiment of the application has at least the following differences and effects:

through the mutual cooperation of two relay subassemblies, realized the automatic break-make of switch, switch-on and disconnection are steady state moreover, only need when the state change circular telegram can, maintain the state of switch-on or disconnection and do not need continuous circular telegram. The service life of the relay is greatly prolonged, and electric energy is saved.

Furthermore, the manual button is arranged to push the sliding block to slide, the switch-on state of the switch can be recovered under the condition that electronic control fails or is inconvenient, and the practicability of the switch is greatly improved.

Furthermore, the middle part of the locking rod is provided with the cone, and the manual button is arranged to push the locking rod to exit from the locking structure through the cone, so that the on-state of the switch can be quickly disconnected under the condition of failure or inconvenience of electronic control, and the practicability of the switch is greatly improved.

The present specification describes a number of technical features distributed throughout the various technical aspects, and if all possible combinations of technical features (i.e. technical aspects) of the present specification are listed, the description is made excessively long. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and embodiments, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of technical features is technically impossible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, then the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.

Drawings

FIG. 1 is an exploded view of an embodiment of the instant unhook switch with manual-automatic integration;

FIG. 2 is a top view of an embodiment of the instant unhook switch of the present application;

fig. 3 a sectional view a-a of fig. 2 showing an automatic trip state of the manual-automatic integral instantaneous release switch according to the embodiment of the present application;

fig. 4 a sectional view B-B of fig. 2 showing an automatic trip state of the manual-automatic integral instantaneous release switch according to the embodiment of the present application;

FIG. 5 is a sectional view taken along line A-A of FIG. 2 illustrating an automatic locking state of the manual-automatic instant unhooking switch according to the embodiment of the present application;

FIG. 6 is a sectional view taken along line B-B of FIG. 2 illustrating an automatic locking state of the manual-automatic instant unhooking switch according to the embodiment of the present application;

fig. 7 a sectional view a-a of fig. 2 illustrating a manual trip state of a manual-automatic integral instantaneous release hook switch according to an embodiment of the present application;

fig. 8 is a cross-sectional view of C-C of fig. 2 illustrating a manual trip state of the manual-automatic integral instantaneous release hook switch according to the embodiment of the present application;

FIG. 9 is a sectional view taken along line A-A of FIG. 2 illustrating a manual locking state of the manual-automatic integral momentary release hook switch according to an embodiment of the present application;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 2 illustrating a manual locking state of the manual-automatic momentary release hook switch according to an embodiment of the present application;

fig. 11 is a sectional view a-a of fig. 2 showing an automatic trip state of the manual-automatic instantaneous release switch according to the embodiment of the present application;

FIG. 12 is a sectional view taken along line A-A of FIG. 2 illustrating an embodiment of the instant release switch of the present application in an automatic latched state;

FIG. 13 is a sectional view taken along line A-A of FIG. 2 illustrating a manual locking state of the instant unhooking switch of the embodiment of the present application;

fig. 14 a sectional view a-a of fig. 2 of a manual-automatic integral momentary release hook switch according to an embodiment of the present application in a manually released state.

The reference numerals are explained below:

1: upper cover

2: second push button (also known as unlocking button)

3: unlocking button spring

4: first push button (also known as locking push button)

5: button spring

6: PCB board

7: terminal pressing block

8: second relay assembly (also known as tripping relay assembly)

9: first relay assembly (also known as lock-in relay assembly)

10: arc extinguishing chamber

11: conductive sheet

12: terminal assembly

13: second contact

14: lower casing

15: mounting screw

16: rod

17: spring

18: lock-in rod

19: spring

20: sliding block

21: locking hole

22: first contact

23: contact hold-down spring

24: first coil

25: second coil

26: spring

27: tapered structure at middle part of lock-in rod

28: spring

29: first inclined plane (middle part of lock-in rod)

30: second inclined plane (lower end of second button)

Detailed Description

In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application may be implemented without these technical details and with various changes and modifications based on the following embodiments.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application relates to a manual-automatic integrated instant unhooking switch. In order to clearly illustrate this embodiment, the following description will be made with reference to preferred examples shown in fig. 1 to 10. Wherein fig. 1 is an exploded view of the switch, fig. 2 is a top view of the switch with three cutting wires a-A, B-B, C-C, and fig. 3 to 10 are sectional views in 4 states of automatic trip, automatic latch, manual trip, and manual latch, respectively.

The manual-automatic integrated instant unhooking switch comprises a first relay assembly 9 and a second relay assembly 8. Wherein,

the first relay assembly 9 includes a first coil 24, a slider 20, a first elastic member (e.g., a spring 19 in fig. 3), a first contact 22, and a second contact 13. The slide 20 is provided with a locking structure for locking the position of the slide 20, which in a preferred embodiment is a hole of a shape and size matching the lock-in lever 18, such as the hole 21 in fig. 3. The first contact 22 is physically connected to the slider 20. The first contact 22 and the second contact 13 are electrically connected to an external circuit, respectively, and for example, the first contact 22 and the second contact 13 are connected to a power line as a movable contact and a stationary contact of a manual-automatic instant unhooking switch. In the preferred embodiment shown in figures 8 and 10, there are two first contacts 22 and two second contacts 13, forming two pairs of contacts for controlling the live and neutral conductors of the power supply respectively. In fig. 3, spring 19 has an upward pushing effect on slider 20, first coil 24 has a downward attracting effect on rod 16 when energized, and rod 16 is physically connected to slider 20 so that first coil 24, when energized, causes slider 20 to move downward.

The second relay assembly 8 includes a second coil 25, a second elastic member (e.g., spring 17 in fig. 3), and a lock-in lever 18. In fig. 3, the spring 17 has a rightward pushing action on the lock-in lever 18, while the second coil 25 has a leftward attracting action on the lock-in lever 18 when energized.

When the first coil 24 is energized, the slider 20 is driven to slide downward against the upward elastic force of the first elastic member (e.g., the spring 17), and the first contact 22 is driven to be electrically connected to the first contact 22 and the second contact 13, and at this time, the locking structure (the hole 21) is just moved to the front of the lock-in rod 18, and the lock-in rod 18 is driven by the second elastic member (e.g., the spring 19) to extend into the locking structure (e.g., the hole 21), so as to lock the position of the slider 20. Then, even if the first coil 24 is de-energized, since the lock-in lever 18 has been inserted into the hole 21 (as shown in fig. 5), the elastic force of the spring 17 can be overcome, so that the first contact 22 and the second contact 13 can be maintained in electrical conduction (as shown in fig. 6).

When the second coil 25 is energized, the lock-in lever 18 is driven to exit the locking structure (e.g., the hole 21) against the elastic force of the second elastic member (e.g., the spring 19), and the slider 20 slides upward under the driving of the first elastic member (e.g., the spring 17) to drive the first contact 22, so that the first contact 22 and the second contact 13 are disconnected (as shown in fig. 3). Then even if the second coil 25 is de-energized, the slider 20 cannot be activated because the lock-in lever 18 has missed the hole 21, because the first coil 24 is also in the de-energized state, so the slider 20 keeps the first contact 22 and the second contact 13 open under the action of the spring 17 (as shown in fig. 4).

Through the ingenious mutual cooperation of two relay subassemblies, realized the automatic break-make of switch, switch-on and disconnection are steady state moreover, only need when the state change switch on the power down can, maintain the state of switch-on or disconnection and all need not lasting circular telegram. The service life of the relay is greatly prolonged, and electric energy is saved.

In a preferred embodiment, as shown in fig. 7, the instant unhooking switch for manual-automatic integration further comprises a first button 4 (in fig. 7, the first button 4 is pressed down) disposed on one side of the slider 20, and when the first button 4 is pressed down, the first button is in physical contact with the slider 20 (as shown in fig. 8), and pushes the slider 20 to slide downward, so that the first contact 22 and the second contact 13 are electrically conducted (as shown in fig. 8). The locking formation (aperture 21) is now moved just in front of the lock-in lever 18, and the lock-in lever 18 is driven by a second resilient member (e.g. spring 19) to extend into the locking formation (e.g. aperture 21) and thereby lock the position of the slider 20. Even if the first push button 4 is released, the third elastic member (e.g., the spring 26) is restored to its original position, and the latch-in lever 18 is inserted into the hole 21 (as shown in fig. 7) to overcome the elastic force of the spring 17, so that the first contact 22 and the second contact 13 are maintained to be electrically connected (as shown in fig. 8).

In a preferred embodiment, as shown in fig. 9, the manual-automatic instant unhooking switch further comprises a second button 2 disposed at one side of the lock-in lever 18, the second button 2 pushes the lock-in lever 18 to exit from the locking structure when pressed, and the slider 20 slides in a reverse direction under the driving of the first elastic member, so that the first and second contacts 13 are disconnected. Preferably, the middle of the lock-in lever 18 has a tapered structure 27, and one end (lower end) of the second button 2 has a slope, and when the second button 2 is pressed, the slope of the tapered structure 27 is pushed by the slope of the lower end of the second button 2, so that the lock-in lever 18 exits the locking structure. Even if the second push button 2 is then released, it springs back to its original position under the action of the fourth elastic means (such as spring 28, fig. 10), which cannot act on the slider 20 because the lock-in lever 18 has missed the hole 21, and because the first coil 24 is also in the de-energized state, the slider 20 keeps the first contact 22 and the second contact 13 open under the action of the spring 17 (fig. 10). In another embodiment, the lock-in lever 18 may not have the tapered structure 27, but a slope 29 is provided in the middle of the lock-in lever 18 corresponding to the slope 30 at the lower end of the second button 2, and when the second button 2 is pressed, the slope 29 at the middle of the lock-in lever 18 is pushed by the slope 30 at the lower end of the second button 2, so that the lock-in lever 18 exits the locking structure. Sectional views a-a of this scheme in the automatic trip state, the automatic latch state, the manual latch state, and the manual trip state are shown by fig. 11, 12, 13, and 14, respectively. The slope of the tapered structure 27 is essentially a preferred form of the slope 29.

The manual button is arranged to push the sliding block 20 to slide, so that the on state of the switch can be recovered under the condition that electronic control is invalid or inconvenient, and the practicability of the switch is greatly improved. The cone is arranged in the middle of the locking rod 18, and the manual button is arranged to push the locking rod 18 to exit from the locking structure through the cone, so that the on-state of the switch can be quickly disconnected under the condition that electronic control is invalid or inconvenient, and the practicability of the switch is greatly improved.

In a preferred embodiment, the resilient members are all metal springs. In other examples, the elastic member may be an elastic sheet, an elastic rubber, or other structures or materials such as a sponge.

In a preferred embodiment, the manual-automatic instant unhooking switch further comprises a control circuit electrically connected with the first coil 24 and the second coil 25 for controlling the first coil 24 and the second coil 25 to be switched on and off.

In a preferred embodiment, the manual-automatic integral instant unhooking switch further comprises a wireless receiving circuit, which is electrically connected to the control circuit, and is used for receiving the control command of the switch in a wireless manner, and outputting the control command to the control circuit for controlling the first coil 25 and the second coil 25 to be switched on and off.

The manual-automatic integrated instant unhooking switch has multiple application scenes. In a preferred embodiment, the manual-automatic integrated instant unhooking switch is applied to the on-off of a power supply and belongs to a power supply switch. In another example, the instant unhook switch may also be used for electrical signal lines as a switch for electrical signals.

The following summarizes several main dynamic working processes of the manual-automatic integrated instant unhooking switch:

the slider 20 is driven to move by electrifying the first relay assembly 9, at the moment, the locking structure moves to the front of the locking rod 18, the locking rod 18 is pushed into the locking structure of the slider 20 to lock the slider 20 under the action of the elastic force of the second elastic piece of the second relay assembly 8, the locking rod 18 is driven to exit from the locking structure of the slider 20 by the second relay assembly 8 through electric driving, the slider 20 exits from the locking state under the action of the elastic force of the first elastic piece of the first relay assembly 9, the two relay assembly assemblies are used circularly and matched with each other, and the combined function of automatic opening and automatic closing of a switch is realized. And the on-off state is a stable state, the relay assembly can be powered on only when the state is changed, and the on-off state is maintained without continuous power on, so that the service life of the relay assembly is greatly prolonged.

The slider 20 is driven to move by electrifying the first relay assembly 9, at the moment, the locking structure moves to the front of the locking rod 18, the locking rod 18 is pushed into the locking structure of the slider 20 to lock the slider 20 under the action of the elastic force of the second elastic piece of the second relay assembly 8, the locking rod 18 pushing the second relay assembly 8 is pushed to withdraw from the locking structure of the slider 20 by manually pressing an unlocking button, the slider 20 is withdrawn from the locking state under the action of the elastic force of the first elastic piece of the first relay assembly 9, the first relay assembly 9 is used and the manual unlocking button is used to push the second relay assembly 8 to be mutually matched, and the combined functions of automatic opening and manual closing of the switch are realized. And when the unlocking button is manually pressed, the unlocking button automatically and quickly returns under the action of the elastic force of the fourth elastic piece when the hand is released, and the use of the relay assembly is not influenced.

The sliding block 20 of the first relay assembly 9 is pushed to move by manually pressing the locking button, at the moment, the locking structure moves to the front of the locking rod 18, the locking rod 18 is pushed into the locking structure of the sliding block 20 to lock the sliding block 20 under the action of the elastic force of the second elastic piece of the second relay assembly 8, the locking rod 18 is driven to withdraw from the locking structure of the sliding block 20 through electric driving of the second relay assembly 8, and the sliding block 20 is withdrawn from the locking state under the action of the elastic force of the first elastic piece of the first relay assembly 9. The manual button pressing is used for pushing the first relay assembly 9 assembly and the second relay assembly 8 assembly to be matched with each other, and the combined function of manual opening and automatic closing of the switch is achieved. And when the button is pressed manually, the button can automatically and quickly return under the elastic force of the third elastic element when the hand is released, and the use of the relay assembly is not influenced.

The slide block 20 of the first relay assembly 9 is pushed to move by manually pressing the multi-binding button, at the moment, the locking structure moves to the front of the locking rod 18, the locking rod 18 is pushed into the locking structure of the slide block 20 to lock the slide block 20 under the action of the elastic force of the second elastic piece of the second relay assembly 8, the locking rod 18 of the second relay assembly 8 is pushed to withdraw from the locking structure of the slide block 20 by manually pressing the unlocking button, and the slide block 20 is withdrawn from the locking state under the action of the elastic force of the first elastic piece of the first relay assembly 9. The manual button pushing of the first relay assembly 9 and the manual button pushing of the unlocking button pushing of the second relay assembly 8 are matched with each other, so that the combined function of manual opening and manual closing of the switch is realized.

The preferences described above may be varied widely, for example in another example, the first button 4 and/or the second button 2 may be absent.

In the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like, are used merely to describe various individuals and are not to be construed as indicating or implying any order or relative importance among such individuals.

In the description of the present application, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Those of ordinary skill in the art will understand the specific meaning of the above terms in this application.

It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that a certain action is executed according to a certain element, it means that the action is executed according to at least the element, and two cases are included: performing the action based only on the element, and performing the action based on the element and other elements.

All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Further, it should be understood that various changes or modifications can be made to the present application by those skilled in the art after reading the above teachings of the present application, and these equivalents also fall within the scope of the claimed application.

Claims (10)

1. A manual-automatic integrated instant unhooking switch is characterized by comprising a first relay assembly and a second relay assembly; wherein,

the first relay assembly includes a first coil, a slider, a first elastic member, a first contact, and a second contact; the sliding block is provided with a locking structure for locking the position of the sliding block; the first contact is physically connected with the sliding block; the first and second contacts are respectively electrically connected with an external circuit;

the second relay assembly comprises a second coil, a second elastic component and a lock-in rod;

when the first coil is electrified, the elastic force of the first elastic component is overcome, the sliding block is driven to move, so that the first contact and the second contact are conducted electrically, at the moment, the locking structure moves to the front of the lock-in rod, and the lock-in rod extends into the locking structure under the driving of the second elastic component, so that the position of the sliding block is locked;

when the second coil is electrified, the elasticity of the second elastic component is overcome, the lock-in rod is driven to exit the locking structure, and the sliding block slides reversely under the driving of the first elastic component, so that the first contact and the second contact are disconnected.

2. The instant unhook switch of claim 1 further comprising a first button disposed on a side of said slider, said first button pushing said slider to slide when pressed to make said first and second contacts electrically conductive, wherein said locking structure moves in front of said lock-in rod, said lock-in rod driven by said second elastic member to extend into said locking structure to lock the position of said slider.

3. The automated manual momentary release hook switch of claim 2, further comprising a third resilient member physically coupled to the first button for urging the first button back to a predetermined position when the first button is released.

4. The automated manual momentary release hook switch according to claim 1, further comprising a second button disposed on one side of the lock-in lever, wherein when the second button is pressed, the lock-in lever is pushed to exit the locking structure, and the slider slides in a reverse direction under the driving of the first elastic member, so that the first and second contacts are opened.

5. The automated manual momentary release hook switch of claim 4, wherein the lock-in lever has a first inclined surface at a middle portion thereof, and the second button has a second inclined surface at an end thereof, and when the second button is pressed, the first inclined surface is pushed by the second inclined surface, so that the lock-in lever exits the locking structure.

6. The momentary disconnect switch of claim 4, further comprising a fourth resilient member in physical communication with the second button for urging the second button back to a predetermined position when the second button is released.

7. The switch of any one of claims 1 to 6, wherein the first and second resilient members are springs.

8. The switch of any one of claims 1 to 6, wherein said locking structure is a hole shaped and sized to mate with said lock-in lever.

9. The instant unhook switch of any one of claims 1-6, further comprising a control circuit electrically connected to the first and second coils for controlling the electrical switching of the first and second coils.

10. The automated manual moment unhook switch of claim 9, further comprising a wireless receiving circuit electrically connected to the control circuit, for receiving a control command of the switch in a wireless manner, and outputting the control command to the control circuit for controlling the electrical connection and disconnection of the first and second coils.