CN114496601A - Switch assembly - Google Patents

Abstract

The present invention provides a switch assembly comprising: the first switch comprises a first electromagnet, a first contact, a first linkage bridge and a first position sensing element, and the first electromagnet is electrified to drive the first linkage bridge, so that the first linkage bridge drives the first contact to realize contact or disconnection, and the first linkage bridge triggers the first position sensing element; the second switch comprises a second electromagnet, a second contact, a second linkage bridge and a second position sensing element, and the second electromagnet is electrified to drive the second linkage bridge, so that the second linkage bridge drives the second contact to realize contact or disconnection, and the second linkage bridge triggers the second position sensing element; and a frame including a first mount and a second mount, the first and second switches being mounted in the first and second mounts, respectively. The switch assembly has the advantages of compact structure, simple installation and wiring and rich functions.

Description

Switch assembly

Technical Field

The invention relates to the technical field of electricity, in particular to a switch assembly.

Background

Switches are common electrical components in electrical circuits. Some switches have electromagnets, which can control the movement of a movable part through a magnetic field generated by the electromagnet, and then control the on/off of a circuit. However, when a plurality of switches are included in the circuit, the existing switches are often separated from each other, causing complication and inconvenience in mounting and wiring. In addition, the existing switch has a single function, and has no other additional functions except for realizing the on-off of a circuit, such as the function of sensing the movement of a movable part.

Disclosure of Invention

In order to solve the above problems, embodiments of the present invention are directed to providing a switch assembly capable of integrating two or more switches together and providing more rich functions to the switches.

The present invention provides a switch assembly comprising: the first switch comprises a first electromagnet, a first contact, a first linkage bridge and a first position sensing element, and the first electromagnet is electrified to drive the first linkage bridge, so that the first linkage bridge drives the first contact to realize contact or disconnection, and the first linkage bridge triggers the first position sensing element; the second switch comprises a second electromagnet, a second contact, a second linkage bridge and a second position sensing element, and the second electromagnet is electrified to drive the second linkage bridge, so that the second linkage bridge drives the second contact to realize contact or disconnection, and the second linkage bridge triggers the second position sensing element; and a frame including a first mount and a second mount, the first and second switches being mounted in the first and second mounts, respectively.

According to a specific embodiment of the invention, the first electromagnet comprises a first contact coil and a first disconnection coil, after the first contact coil is electrified, the first contact is connected, and after the first disconnection coil is electrified, the first contact is disconnected; the second electromagnet comprises a second contact coil and a second disconnection coil, the second contact realizes connection after the second contact coil is electrified, and the second contact realizes disconnection after the second disconnection coil is electrified.

According to a specific embodiment of the present invention, the first position sensing element comprises a first micro switch, when the first contact coil is energized and the first electromagnet drives the first link bridge to move to the end position, the first link bridge activates the first micro switch so that the first micro switch opens the circuit of the first contact coil and allows the circuit of the first disengagement coil to be closed, and when the first disengagement coil is energized and the first electromagnet drives the first link bridge to move to the end position, the first link bridge activates the first micro switch so that the first micro switch opens the circuit of the first disengagement coil and allows the circuit of the first contact coil to be closed; the second position sensing element includes a second microswitch that is activated by the second linkage bridge when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to the end position such that the second microswitch opens the circuit of the second contact coil and allows the circuit of the second trip coil to be closed, and activated by the second linkage bridge when the second trip coil is energized and the second electromagnet drives the second linkage bridge to move to the end position such that the second microswitch opens the circuit of the second trip coil and allows the circuit of the second contact coil to be closed.

According to a specific embodiment of the invention, the first position sensing element comprises a first position sensor, the first linkage bridge triggers the first position sensor when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to the end position, such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first disengagement coil to be closed, the first linkage bridge triggers the first position sensor when the first disengagement coil is energized and the first electromagnet drives the first linkage bridge to move to the end position, such that the first position sensor sends a signal to open the circuit of the first disengagement coil and allow the circuit of the first disengagement coil to be closed; the second position sensing element includes a second position sensor that triggers the second position sensor when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to the end position such that the second position sensor sends a signal to open the circuit of the second contact coil and allow the circuit of the second de-energizing coil to be closed, and when the second de-energizing coil is energized and the second electromagnet drives the second linkage bridge to move to the end position, the second linkage bridge triggers the second position sensor such that the second position sensor sends a signal to open the circuit of the second de-energizing coil and allow the circuit of the second de-energizing coil to be closed.

According to a specific embodiment of the present invention, the first switch further includes a first magnetic retaining structure, the first magnetic retaining structure includes a first movable member, a first contact position fixing member and a first disengagement position fixing member, the first movable member is connected to the first linkage bridge, when the first linkage bridge drives the first contact to achieve contact, the first movable member moves to contact with the first contact position fixing member and magnetically attracts, so as to maintain contact of the first contact, and when the first linkage bridge drives the first contact to achieve disengagement, the first movable member moves to contact with the first disengagement position fixing member and magnetically attracts, so as to maintain disengagement of the first contact; the second switch still includes second magnetism retaining structure, second magnetism retaining structure includes the second moving part, second contact position mounting and second throw off the position mounting, the second moving part is connected with second linkage bridge, when second linkage bridge drives the second contact and realizes the contact, the second moving part moves to and contacts position mounting contact and magnetism with the second, thereby keep the contact of second contact, when second linkage bridge drives the second contact and realizes throwing off, the second moving part moves to and throws off position mounting contact and magnetism with the second, thereby keep throwing off of second contact.

According to a specific embodiment of the present invention, the first and second movable members are each made of a permanent magnet, and the first and second contact-position fixing members and the first and second disengagement-position fixing members are each made of magnetic steel.

According to a particular embodiment of the invention, the first and second switches are mirror symmetrically mounted in the first and second mounting seats such that the first and second electromagnets are located near the outside of the frame and the first and second linkage bridges are located near the middle of the frame.

According to a specific embodiment of the present invention, the first mounting seat includes a first recess in which the first electromagnet, the first movable member, the first contact-position fixing member, the first disengagement-position fixing member are mounted, a first movable member, a first link bridge and a first position-sensing element are mounted in the first recess, and a first slide in which the first contact is mounted; the second mounting seat comprises a second notch, a second slide way and a second concave part, the second electromagnet, the second movable piece, the second contact position fixing piece and the second disengagement position fixing piece are mounted in the second notch, the second linkage bridge and the second position sensing element are mounted in the second slide way, and the second contact is mounted in the second concave part.

According to a specific embodiment of the present invention, the frame comprises an upper beam, a lower beam, a left beam, a right beam and a middle column, the upper beam, the left beam, the lower beam and the middle column surround the first mounting seat, and the upper beam, the right beam, the lower beam and the middle column surround the second mounting seat.

According to a specific embodiment of the invention, the first and second runners are arranged in parallel on both sides of the center pillar, the first recess is arranged between the first runner and the left beam, the second recess is arranged between the second runner and the right beam, the first recess is arranged between the first recess and the upper beam, and the second recess is arranged between the second recess and the upper beam.

According to a specific embodiment of the present invention, the frame further includes a bottom plate disposed at rear sides of the upper beam, the lower beam, the left beam, the right beam, and the center pillar as bottoms of the first and second mounting seats.

According to the switch assembly, the on-off of the switch and the triggering of the position sensing element are simultaneously realized through the linkage bridge, and the function of the switch assembly is increased. In addition, the two switches are mounted together by the frame to form the switch assembly, which is advantageous for increasing the compactness of the entire circuit structure requiring the two switches and facilitating the wiring and mounting of the entire circuit. Structurally, the switch assembly supports direct installation on a circuit board, supports high-voltage arc extinction through circuit setting to achieve contacts, and also supports function setting of a driving circuit and the switch assembly which are combined into a whole.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference characters generally refer to the same or similar parts.

FIG. 1 is a schematic diagram of a switch assembly according to an embodiment of the present invention;

FIG. 2 is a perspective view of a switch assembly according to one embodiment of the invention;

FIG. 3 illustrates a front view of the switch assembly according to the embodiment of FIG. 2;

FIG. 4 illustrates a right side view of the switch assembly according to the embodiment of FIG. 2;

fig. 5 is a top view of the switch assembly according to the embodiment of fig. 2.

Detailed Description

The present invention is described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, or alterations to the described embodiments, either in whole or in part, are possible and within the scope of the invention as claimed.

As used herein, the terms "first," "second," and the like are not intended to imply any order, quantity, or importance, but rather are used to distinguish one element from another. As used herein, the terms "a," "an," and the like are not intended to mean that there is only one of the described items, but rather that the description is directed to only one of the described items, which may have one or more. As used herein, the terms "comprises," "comprising," and other similar words are intended to refer to logical interrelationships, and are not to be construed as referring to spatial structural relationships. For example, "a includes B" is intended to mean that logically B belongs to a, and not that spatially B is located inside a. Furthermore, the terms "comprising," "including," and other similar words are to be construed as open-ended, rather than closed-ended. For example, "a includes B" is intended to mean that B belongs to a, but B does not necessarily constitute all of a, and a may also include C, D, E and other elements.

The terms "embodiment," "present embodiment," "an embodiment," "one embodiment," and "one embodiment" herein do not mean that the pertinent description applies to only one particular embodiment, but rather that the description may apply to yet another embodiment or embodiments. Those of skill in the art will understand that any of the descriptions given herein for one embodiment can be combined with, substituted for, or combined with the descriptions of one or more other embodiments to produce new embodiments, which are readily apparent to those of skill in the art and are intended to be within the scope of the present invention.

In various embodiments of the present invention, a switch may refer to a component capable of controlling the on/off of a circuit. Depending on the configuration, the switch may be classified into a switch including one or more contacts and a switch not including a contact. The switch without the contact is, for example, a proximity switch, and the switch achieves the purpose of controlling the on and off of the circuit by utilizing the sensitive characteristic of the displacement sensor to a proximity object. The switches can be classified into a wave switch, a band switch, a recording and playing switch, a power switch, a preselection switch, a limit switch, a control switch, a transfer switch, a disconnecting switch, a travel switch, a wall switch, an intelligent fire-proof switch and the like according to the purpose. According to the structural classification, the switches can be classified into micro switches, ship-type switches, toggle switches, push-button switches, membrane switches, point switches, and the like. According to the operation mode classification, the switch can be divided into a single-control switch, a double-control switch, a multi-control switch, a dimming switch, a speed regulation switch, a doorbell switch, an inductive switch, a touch switch, a remote control switch, an intelligent switch, a card-inserting electricity-taking switch and the like.

In the embodiments of the present invention, the switch assembly may refer to a structure in which at least two switches and (possibly) related components are combined together, and can perform a switching function and (possibly) an additional function.

The switch assembly of the invention can be applied, for example, in a protection circuit of a lithium battery pack, which is used for solving the problem of battery thermal runaway for a long time. The protection circuit includes a switch for preventing overcharge and a switch for preventing overdischarge. In the art, these two switches are usually separate, resulting in complexity of installation and trouble of wiring.

Fig. 1 shows a schematic structural diagram of a switch assembly 100 according to an embodiment of the present invention.

The switch assembly 100 according to the present embodiment includes: the first switch 101, the first switch 101 includes a first electromagnet 111, a first contact 131, a first linkage bridge 121 and a first position sensing element 141, the first electromagnet 111 drives the first linkage bridge 121 after being electrified, so that the first linkage bridge 121 drives the first contact 131 to realize contact or disconnection, and the first linkage bridge 121 triggers the first position sensing element 141; the second switch 102, the second switch 102 includes a second electromagnet 112, a second contact 132, a second linkage bridge 122, and a second position sensing element 142, the second electromagnet 112 drives the second linkage bridge 122 after being energized, so that the second linkage bridge 122 drives the second contact 132 to be contacted or separated, and the second linkage bridge 122 triggers the second position sensing element 142; and a frame 160, the frame 160 including a first mount 151 and a second mount 152, the first and second switches 101, 102 being mounted in the first and second mounts 151, 152, respectively.

According to the embodiment, the on-off of the switch and the triggering of the position sensing element are simultaneously realized through the linkage bridge, which is beneficial to increasing the functions of the switch assembly 100. In addition, the switch assembly 100 is formed by mounting two switches together through a frame, which is advantageous in increasing the compactness of the entire circuit structure requiring two switches and facilitating the wiring and mounting of the entire circuit.

In one embodiment, an electromagnet may refer to a device that generates a magnetic field when energized. In one embodiment, the electromagnet may include a core and a coil wound around the core, and the coil is energized to magnetize the core, so that the core generates a magnetic force like a magnet, and the magnetic force disappears after the coil is de-energized. According to the current form, the electromagnet can be divided into an alternating current electromagnet and a direct current electromagnet. The electromagnets may be classified into braking electromagnets, lifting electromagnets, valve electromagnets, traction electromagnets, etc. according to their uses.

In one embodiment, the contacts (131, 132) may refer to a structure capable of performing connection and disconnection of an electric circuit by contact and disconnection of two conductive members, respectively. According to the different movement modes of the contacts, the contacts can be divided into a contact consisting of a moving contact and a fixed contact (the moving contact moves to be in contact with the fixed contact), a contact consisting of two moving contacts (the two moving contacts approach each other until contacting), a contact consisting of a moving contact and two fixed contacts (the moving contact moves between the two fixed contacts), and the like. The contacts may be classified into a-type contacts, b-type contacts, and c-type contacts according to the contact structure. The a-type contact can be a normally open contact, that is, in a normal state, two contacts forming the contact are separated, and the contact is contacted after a switch button is pressed; the b-type contact can be a normally closed contact, namely, in a normal state, two contact terminals forming the contact are contacted, and the contact is disconnected when a switch button is pressed; the c-type contact can be characterized by comprising two fixed contacts and a moving contact, wherein the moving contact moves between the two fixed contacts, and when the moving contact is contacted with one fixed contact, a circuit is disconnected, and when the moving contact is contacted with the other fixed contact, the circuit is connected.

In one embodiment, the linkage bridge (121, 122) may refer to an intermediate transmission capable of driving or effecting linkage of two or more components, such as an intermediate component capable of effecting linkage of the contacts and the position sensing element (i.e., simultaneous actuation of the contacts and the position sensing element). In one embodiment, the linkage bridge may be an elongated rod-shaped member having one end connected to the contact and the other end connected to the position sensing element, the translational movement of the rod-shaped member causing both movement of the contact and activation of the position sensing element; or a pivotable member, one side of the pivot point is connected with the contact, the other side is connected with the position sensing element, and the pivoting of the pivotable member causes the movement of the contact and the triggering of the position sensing element; it may also refer to a resilient member having a resiliently movable portion that simultaneously connects the contacts and the position sensing element, which when moved, simultaneously causes movement of the contacts and activation of the position sensing element.

In one embodiment, the position sensing element (141, 142) may refer to an element having a position sensing function and capable of performing a corresponding action or response according to the sensed position information. In an embodiment, the position sensing element is independent of the contacts, i.e. the reaction of the contacts to the movement of the linkage bridge is not a reaction of the position sensing element. In one embodiment, the position sensing element may be used to sense the position or motion of the bridge and react or respond accordingly to changes in position or motion of the bridge. In one embodiment, the position sensing element may be referred to as a microswitch, in which case a subtle movement of the linkage bridge triggers a reaction of the microswitch, causing the microswitch to turn on or off; it may also refer to a proximity switch, in which case the movement of the ganged bridge towards or away from the proximity switch causes a reaction of the proximity switch, causing the proximity switch to take the action of making or breaking the circuit; the linkage bridge can also be a position sensor, in this case, the movement of the linkage bridge is sensed by the position sensor, and the position sensor sends different signals to a certain control circuit according to different movements of the linkage bridge; the linkage bridge control system can also be a camera, in this case, the motion of the linkage bridge is shot by the camera, the camera transmits the motion image of the linkage bridge to the control center, and the control center sends different instructions according to different actions of the linkage bridge.

In one embodiment, the electromagnet is powered on to drive the linkage bridge, which may mean that a magnetic field generated after the electromagnet is powered on acts on the linkage bridge to move the linkage bridge. In one embodiment, the electromagnet drives the linkage bridge after being electrified, and the realization mode can be that a magnetic field generated after the electromagnet is electrified passes through the iron core, so that the iron core is magnetized, and magnetic attraction force aiming at the linkage bridge is generated, so that the linkage bridge moves; the magnetic field that produces after the electro-magnet circular telegram can also be through the iron core for the iron core is magnetized, produces the magnetic attraction to a driving medium, makes the driving medium take place the motion, and the motion conduction of driving medium to the linkage bridge makes the linkage bridge take place the motion then.

In one embodiment, the linkage bridge brings the contacts into and out of contact, which may mean that movement of the linkage bridge causes movement of the relevant part of the contacts, which in turn causes the contacts to make and break contact, which can result in the closing and opening of the circuit. In an embodiment, the linkage bridge drives the contact to contact or separate, which may be implemented by operatively connecting the linkage bridge with a moving contact in the contact, and the movement of the linkage bridge drives the moving contact to move, so that the moving contact is contacted with or separated from a fixed contact in the contact; the movement of the linkage bridge can also cause a transmission component to move, and the movement of the transmission component causes the moving contact of the contact to move, so that the moving contact is contacted with or separated from the fixed contact; the linkage bridge may be operatively connected to the two movable contacts of the contact, and movement of the linkage bridge causes the two movable contacts to move toward or away from each other, thereby causing the contacts to be in contact with or separated from each other.

In one embodiment, the position sensing element is triggered by the bridge, which may mean that the bridge causes the position sensing element to react. In one embodiment, the position sensing element is triggered by the link bridge, and the link bridge moves to the vicinity of the position sensing element, and the position sensing element senses that the link bridge enters a sensing range and generates a corresponding reaction action; or the linkage bridge moves to a part contacting or pushing the position sensing element, the part converts the contact or pushing of the linkage bridge into a corresponding signal and transmits the signal to the position sensing element, and the position sensing element makes a corresponding reaction action; it is also possible that the position sensing element monitors the link bridge in real time, and once any movement of the link bridge occurs, the position sensing element generates a corresponding reaction action.

In an embodiment, the electromagnet is powered on to drive the linkage bridge, so that the linkage bridge drives the contact to be contacted or separated, and the linkage bridge triggers the position sensing element, which may mean that the electromagnet is powered on to drive the linkage bridge to move, such movement of the linkage bridge causes a part or a moving contact of the contact to move, thereby causing the contact to be contacted or separated, and the movement of the linkage bridge also causes the position sensing element to generate a certain reaction action.

In one embodiment, the frame 160 may refer to a structure that supports and/or protects the switch assembly 100 as a whole, is a separate piece that is specific to the switch assembly 100, and is not a more macroscopic structure, such as a frame or housing of an entire circuit, battery management system, or battery module. In an embodiment, a mounting seat may refer to a structure, such as a platform, a recess, a bracket, a housing, etc., that is capable of allowing an object to be mounted in a certain position and to perform a corresponding supporting and/or protecting function.

In an embodiment, the frame 160 includes the first and second mounting seats 151 and 152, which may mean that the frame 160 has a portion for mounting two switches in an overall structure, rather than the mounting structures of the two switches being separated from each other and regarded as one frame. In one embodiment, the frame 160 includes a first mounting seat 151 and a second mounting seat 152, which may mean that the two mounting seats form an integral part of the frame 160 and are connected together by other parts of the frame 160. In one embodiment, the frame 160 includes a first mounting seat 151 and a second mounting seat 152, which may be implemented by having two recesses for mounting two switches in a rigid integral structure of the frame 160, the two recesses being surrounded by a main body portion of the frame 160 structure, the two recesses forming the two mounting seats; alternatively, the plurality of rod-shaped support structures of the frame 160 may enclose a space sufficient to accommodate two switches, which are installed in the space and fixedly connected to the support structures of the frame 160 in multiple directions, and the space forms two mounting seats; alternatively, the frame 160 may be a sealed housing, the bottom of the housing has two bases, two switches are respectively mounted on the two bases and surrounded by the sealed housing, and the two bases and the space above the two bases form two mounting seats.

In one embodiment, the switch is installed in the mounting seat, which may mean that each component of the switch is fixed or connected to a corresponding position preset for the mounting seat, so that the switch can be stably installed in the mounting seat and perform a predetermined function. In an embodiment, the first and second switches 101 and 102 are respectively installed in the first and second installation seats 151 and 152, which may mean that the first switch 101 is installed in the first installation seat 151 and the second switch 102 is installed in the second installation seat 152.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 1 and may include one or more features of one or more of all of the embodiments described above.

According to the embodiment, the first electromagnet 111 comprises a first contact coil and a first disengagement coil, the first contact 131 is switched on after the first contact coil is electrified, and the first contact 131 is disengaged after the first disengagement coil is electrified; the second electromagnet 112 includes a second contact coil and a second release coil, the second contact 132 is turned on when the second contact coil is energized, and the second contact 132 is released when the second release coil is energized.

According to this embodiment, the coil of electro-magnet is the stack coil, including the different two sets of coils of winding direction, can realize the different magnetic force of direction respectively to be convenient for produce the different motion of direction. The switching of the magnetic force direction is realized through the superposed coils, the circuit can be simplified, and the generation of the magnetic force in different directions due to the need of the current in different directions is avoided.

In one embodiment, a coil may refer to a winding into which mutually insulated wires are wound. The coils may be classified into air-core coils, ferrite coils, iron-core coils, copper-core coils, and the like, according to the properties of the magnetizer. The coil may be classified into an antenna coil, an oscillation coil, a choke coil, a trap coil, a deflection coil, etc. according to the operational property. The coil may be classified into a single-layer coil, a multi-layer coil, a honeycomb coil, a stacked coil, etc. according to the winding structure. The superimposed coil may be a coil formed by winding two or more wires. In one embodiment, the contact coil may be a coil capable of generating a magnetic force to turn on the contact when energized. In one embodiment, the disengagement coil may be a coil that, when energized, generates a magnetic force that causes the contacts to disengage.

In one embodiment, the electromagnet comprises a contact coil and a release coil, which may mean that the coil of the electromagnet may be divided into two sections, i.e. wound by two wires that are not connected to each other. In one embodiment, the electromagnet comprises a contact coil and a release coil, which may mean that the coils of the electromagnet are superposed coils, and the superposed coils comprise two groups of coils with different winding directions. In an embodiment, the two groups of coils of the superposed coils may be two sections of coils distributed along the axial direction of the iron core, or two layers of coils distributed along the radial direction of the iron core.

In one embodiment, when the contact coil is energized, the contact is turned on, which may mean that, when the contact coil is energized, the electromagnet generates a magnetic force, and the magnetic force urges the linkage bridge to move in one direction, so that the linkage bridge drives the contact to turn on until the contact is closed, and the circuit is turned on. In an embodiment, the disconnection coil is electrified to disconnect the contacts, which may mean that after the disconnection coil is electrified, the electromagnet generates a magnetic force, and the magnetic force causes the linkage bridge to move towards the other direction, so that the linkage bridge drives the contacts to generate a disconnection action until the contacts are disconnected, and the circuit is disconnected.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 1 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the first position sensing element 141 comprises a first micro switch, when the first contact coil is energized and the first electromagnet 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 activates the first micro switch, so that the first micro switch opens the circuit of the first contact coil and allows the circuit of the first disengagement coil to be switched on, when the first disengagement coil is energized and the first electromagnet 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 activates the first micro switch, so that the first micro switch opens the circuit of the first disengagement coil and allows the circuit of the first contact coil to be switched on; the second position sensing element 142 includes a second microswitch that is activated by the second linkage bridge 122 when the second contact coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position, such that the second microswitch opens the circuit of the second contact coil and allows the circuit of the second trip coil to be completed, and that is activated by the second linkage bridge 122 when the second trip coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position, such that the second microswitch opens the circuit of the second trip coil and allows the circuit of the second trip coil to be completed. The switch assembly 100 according to the present embodiment senses the movement of the link bridge through the micro switch, facilitates sensing the position of the link bridge through low cost, and facilitates improving the sensitivity of position detection. Moreover, the circuit of the electromagnet is disconnected when the linkage bridge moves to the tail end position, so that the electric energy provided for the electromagnet is saved, and the system is particularly suitable for an isolated energy system. At the same time, allowing the circuit of the other coil to be switched on can increase the response speed of the electromagnet. This configuration may also allow both contacts to be opened simultaneously when necessary for emergency treatment.

In one embodiment, the micro switch may be a switch with a press pin capable of sensing external micro movement, a relatively small contact distance and a relatively high sensitivity, which is also called a sensitive switch or a snap switch. The microswitch is of a common type, a small type and a microminiature type according to the volume. According to the breaking form, the micro switch has a single connection type, a double connection type and a multiple connection type. According to the protection performance, the micro switch has a waterproof type, a dustproof type and an explosion-proof type. The micro switch has common type, direct current type, micro current type and large current type according to the breaking capacity. The micro switch has common type, high temperature resistant type and super high temperature resistant ceramic type according to the use environment. The micro switch is divided into a push-button type, a reed roller type, a lever roller type, a short movable arm type, a long movable arm type and the like according to the form of a press pin.

In one embodiment, the end position may refer to an end position or a dead point position of the range of motion. For example, the position of the upper dead point and the lower dead point of a piston moving in a cylinder is the end position. The object may have an end position, such as the highest point to which the end of the pendulum can swing; there may be two end positions, such as a rod-like structure that moves back and forth lengthwise, to the farthest and closest points to which one end can move; there may be three end positions, for example three corner positions on a track to which a trolley moving on a triangular track can move; there may be a plurality of end positions, for example a knob that can be rotated 360 degrees around a central point, each of which movement positions is possible as an end position.

In one embodiment, the movement of the bridge linkage to the end position may refer to the movement of the bridge linkage to or near the end position within its range of motion. In one embodiment, the electromagnet drives the linkage bridge to move to the end position, which may mean that the magnetic field generated by the electromagnet directly or indirectly acts on the linkage bridge to move the linkage bridge to the end position. In one embodiment, the electromagnet drives the linkage bridge to move to the end position, which may be implemented by passing a magnetic field generated by the electromagnet through the iron core, so that the iron core is magnetized to generate a magnetic attraction force for the linkage bridge, so that the linkage bridge moves to the end position; the magnetic field that the electro-magnet produced can also be through the iron core for the iron core is magnetized, produces the magnetic attraction to a driving medium, makes the driving medium take place the motion, and the motion conduction of driving medium to the linkage bridge makes the linkage bridge move to end position then.

In an embodiment, the micro switch disconnects the circuit of the coil, which may mean that the micro switch is connected to a circuit for supplying power to the coil, and the micro switch causes the circuit of the coil to be disconnected when the state of the micro switch is switched. In an embodiment, the microswitch opens the circuit of the coil, which may be achieved in that the microswitch is directly connected into the circuit of the coil, the operating state of the microswitch is changed from an on state to an off state, thereby causing the circuit of the coil to be opened; it is also possible that the microswitch is connected to a further circuit associated with the coil circuit, the element of which further circuit is able to control the coil circuit to be switched off after a transition of the operating state of the microswitch (from on to off or from off to on).

In one embodiment, the microswitch allows the circuit of the coil to be switched on, which may mean that, in the case where there may be other switches in the circuit in which the microswitch is located, the microswitch performs a closing operation, not necessarily causing the circuit to be powered on, but when the other switches are all closed, the circuit can be powered on.

In an embodiment, the microswitch opens a circuit of the contact coil and allows a circuit of the disconnection coil to be connected, which may mean that the microswitch includes a moving contact and two fixed contacts, the moving contact can be switched between a state of being in contact with one fixed contact and a state of being in contact with the other fixed contact, one of the fixed contacts is disposed in the circuit of the contact coil, the other fixed contact is disposed in the circuit of the disconnection coil, when the moving contact of the microswitch is switched from the state of being in contact with the fixed contact disposed in the circuit of the contact coil to the state of being in contact with the fixed contact disposed in the circuit of the disconnection coil, the circuit of the contact coil is opened, and the circuit of the disconnection coil is allowed to be connected, that is, the microswitch can be connected when other switches in the circuit of the disconnection coil are closed. In one embodiment, the microswitch opens the circuit that disengages the coil and allows the circuit that contacts the coil to be closed, as opposed to the situation described above.

In one embodiment, when the contact coil is energized and the electromagnet drives the linkage bridge to move to the end position, the linkage bridge actuates the microswitch, such that the microswitch opens the circuit contacting the coil and allows the circuit disconnecting the coil to be closed, which may mean that the linkage bridge is driven by the magnetic field generated by the electromagnet to move toward the end position where the connection is possible, and when the end position is reached, the linkage bridge moves a sensitive element (such as a push pin or a reed) of the microswitch, thereby causing the state of the microswitch to switch, which in turn causes the circuit supplying power to the contact coil to open, and causes the circuit supplying power to the disconnecting coil to be closed with the other switches in the circuit closed. In one embodiment, when the trip coil is energized and the electromagnet drives the bridge to move to the end position, the bridge actuates the microswitch, causing the microswitch to open the circuit of the trip coil and allow the circuit of the contact coil to close, as opposed to the above.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 1 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the first position sensing element 141 comprises a first position sensor, the first linkage bridge 121 triggers the first position sensor when the first contact coil is energized and the first electromagnet 111 drives the first linkage bridge 121 to move to the end position, such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first trip coil to be closed, the first linkage bridge triggers the first position sensor when the first trip coil is energized and the first electromagnet drives the first linkage bridge to move to the end position, such that the first position sensor sends a signal to open the circuit of the first trip coil and allow the circuit of the first contact coil to be closed; the second position sensing element 142 includes a second position sensor that is triggered by the second linkage bridge 122 when the second contact coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position such that the second position sensor sends a signal to open the circuit of the second contact coil and allow the circuit of the second disconnect coil to be closed, and that is triggered by the second linkage bridge 122 when the second disconnect coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position such that the second position sensor sends a signal to open the circuit of the second disconnect coil and allow the circuit of the second contact coil to be closed.

The switch assembly 100 according to the present embodiment senses the movement of the link bridge through the position sensor, which is advantageous to improve the accuracy of the determination of the position of the link bridge. Moreover, the circuit for sending a signal to disconnect the coil when the linkage bridge moves to the end position is advantageous for saving the electric energy supplied to the electromagnet, and is particularly suitable for an isolated energy system. At the same time, allowing the circuit of the other coil to be switched on can increase the response speed of the electromagnet. This configuration may also allow both contacts to be opened simultaneously when necessary for emergency treatment.

In one embodiment, the position sensor may refer to a sensor capable of sensing the position or position change of an object to be measured and converting it into an output signal. Position sensors can be broadly classified into two broad categories, touch sensors and proximity sensors. The contact sensor can be a sensor which can enable a measured object to react only by contacting a certain part of the sensor, and comprises a travel switch, a two-dimensional matrix position sensor and the like; the proximity sensor may be a sensor that can react with a measured object only when the measured object enters a certain setting range of the sensor, and includes an electromagnetic type, a photoelectric type, a differential transformer type, an eddy current type, a capacitor type, a reed switch, a hall type, and the like.

In one embodiment, the linkage bridge triggers the position sensor, which may mean that the position sensor senses the existence of the linkage bridge somewhere or the movement state change of the linkage bridge, thereby causing the position sensor to react. In one embodiment, the position sensor is triggered by the ganged bridge, which may be implemented by the ganged bridge entering the sensing range of the position sensor, causing the position sensor to sense the ganged bridge, thereby reacting; or, the linkage bridge moves, so that the position sensor senses the position change of the linkage bridge, and then the reaction is made; it is also possible that the link bridge enters the sensing range of the position sensor and continues to move within this range, and the position sensor senses the movement of the link bridge, thereby reacting.

In one embodiment, a signal may refer to a signal that is capable of directly or indirectly causing a particular circuit to be opened or closed. In one embodiment, the position sensor sends a signal, which may mean that the position sensor sends a specific signal according to the sensed position or position change, which can cause a specific circuit to be opened or closed. In one embodiment, the position sensor sends a signal to open the circuit of the contact coil and allow the circuit of the disengagement coil to be closed, which may mean that the position sensor sends a signal that is transmitted directly or indirectly to a device capable of controlling the opening and closing of the circuits of the contact coil and the disengagement coil, which device, according to the signal or received command, opens the circuit of the contact coil and allows the circuit of the disengagement coil to be closed. In one embodiment, the position sensor sends an opening signal to open the circuit of the contact coil and allow the circuit of the disengagement coil to be closed, which can be achieved by the position sensor sending a signal that is communicated to a controller that sends operating commands to a switch connected in the circuit of the contact coil and a switch connected in the circuit of the disengagement coil based on the signal, the switch in the circuit of the contact coil performing an opening action based on the commands, and the switch in the circuit of the disengagement coil performing a closing action based on the commands; alternatively, the position sensor sends a current signal which is received directly by a switch connected in the contact coil circuit and a switch connected in the disengagement coil, which switches, upon receiving the current signal, perform an opening and closing action, respectively. In one embodiment, the position sensor sends a signal to open the circuit that disengages the coil and allows the circuit that contacts the coil to close, as opposed to the situation described above.

In one embodiment, when the contact coil is energized and the electromagnet drives the linkage bridge to move to the end position, the linkage bridge triggers the position sensor so that the position sensor sends a signal to open the circuit of the contact coil and allow the circuit of the disengagement coil to be closed, which may mean that the linkage bridge is driven by the magnetic field generated by the electromagnet to move toward the end position, and when the end position is reached, the position sensor senses a change in position of the linkage bridge or the linkage bridge to emit a specific signal that is transmitted directly or indirectly to a device capable of controlling the opening and closing of the circuit of the contact coil and the circuit of the disengagement coil, so that the device switches state, resulting in the circuit of the contact coil being open, and the circuit of the disengagement coil being closed with the other switches in the circuit. In one embodiment, when the trip coil is energized and the electromagnet drives the bridge to move to the end position, the bridge triggers the position sensor, causing the position sensor to send a signal to open the circuit of the trip coil and allow the circuit of the contact coil to close, as opposed to the situation described above.

In the following, referring to fig. 2 to 5, a switch assembly 200 according to another embodiment of the present invention is described, which is a specific example of the switch assembly 100 in fig. 1, and may include one or more features of one or more of all the embodiments described above.

According to this embodiment, the first switch further includes a first magnetic retaining structure, the first magnetic retaining structure includes a first movable member 271, a first contact position fixing member 281, and a first disengagement position fixing member 291, the first movable member 271 is connected to the first linking bridge 221, when the first linking bridge 221 drives the first contact 231 to make contact, the first movable member 271 moves to contact with the first contact position fixing member 281 and magnetically attracts, so as to maintain the contact of the first contact 231, and when the first linking bridge 221 drives the first contact 231 to make disengagement, the first movable member 271 moves to contact with the first disengagement position fixing member 291 and magnetically attracts, so as to maintain the disengagement of the first contact 231; the second switch further includes a second magnetic holding structure, the second magnetic holding structure includes a second movable member 272, a second contact position fixing member 282, and a second disengagement position fixing member 292, the second movable member 272 is connected to the second link bridge 222, when the second link bridge 222 drives the second contact 232 to make contact, the second movable member 272 moves to contact with the second contact position fixing member 282 and magnetically attracts, so as to maintain the contact of the second contact 232, and when the second link bridge 222 drives the second contact 232 to make disengagement, the second movable member 272 moves to contact with the second disengagement position fixing member 292 and magnetically attracts, so as to maintain the disengagement of the second contact 232.

According to the embodiment, by providing the magnetic holding structure, the operation state of each switch in the switch assembly 200 can be held by magnetic force without continuously energizing the electromagnet to hold the operation state, which is beneficial to saving energy consumption.

In an embodiment, the magnetic holding structure may refer to a structure that holds the operation state (e.g., on and off) of the switch assembly 200 by a magnetic force. In one embodiment, a moveable member may refer to a moveable component, including a translationally moveable component, a swingable component, a pivotable component, a deformable component. In one embodiment, the contact position fixing member may be a fixed stationary member for defining a position of the movable member where the contact point is brought into contact, and may be in the form of a stopper, a side wall, a bayonet (in which case the movable member may have a member adapted to be snapped into the bayonet), or the like. In one embodiment, the disengagement position securing member may refer to a stationary member in the form of a stop, sidewall, bayonet, or the like, for defining the position of the moveable member that causes the disengagement of the contacts.

In one embodiment, the movable member is connected to the linkage bridge, which may mean that the movable member and the linkage bridge are structurally related to each other, so that the movement of the movable member and the linkage bridge can be conducted with each other. In one embodiment, the movable member is connected to the linkage bridge, which may be implemented by a fixed connection, a movable connection, a direct connection, an indirect connection, or the like.

In an embodiment, the moving part moves to contact with the contact position fixing part and is magnetically attracted, which may mean that the moving part moves until the moving part contacts with the contact position fixing part and stops moving, and the moving part and the contact position fixing part attract each other through magnetic force and keep in contact and are in a relatively fixed state. In one embodiment, the movable member moves to contact with the contact position fixing member and is magnetically attracted, which can be realized by that the movable member can move back and forth on a linear track, the contact position fixing member is arranged at one end of the track, and when the movable member moves to the end, the contact position fixing member blocks the movable member and is mutually attracted with the movable member through magnetic force; the movable part can be an elastic reed, one end of the reed is fixed, the other end of the reed can elastically swing, the contact position fixing part is arranged on one side of the movable end of the reed, and when the movable end of the movable part swings to the contact position fixing part, the contact position fixing part stops the movable part and magnetically attracts the movable part; the movable piece can be a pivot piece, and the arm-shaped structure on one side of the pivot piece can be pivoted to be blocked by the contact position fixing piece so as to be in contact with the contact position fixing piece and magnetically attracted.

In an embodiment, when the linkage bridge drives the contact to achieve contact, the moving part moves to contact with the contact position fixing part and is magnetically attracted, so that contact of the contact is maintained.

In an embodiment, the moving part moves to contact with the disengagement position fixing part and is magnetically attracted, which may mean that the moving part moves until the moving part moves to contact with the disengagement position fixing part and stops moving, and the moving part and the disengagement position fixing part attract each other through magnetic force and keep in contact and are in a relatively fixed state. In one embodiment, the movable member moves to contact with and magnetically attract the release position fixing member, which may be implemented by moving the movable member back and forth on a linear track, the release position fixing member being disposed at one end of the track, and when the movable member moves to the end, the release position fixing member blocking the movable member and attracting the movable member by magnetic force; the movable part can be an elastic reed, one end of the reed is fixed, the other end of the reed can elastically swing, the release position fixing part is arranged on one side of the movable end of the reed, and when the movable end of the movable part swings to the release position fixing part, the release position fixing part stops the movable part and magnetically attracts the movable part; alternatively, the moveable member is a pivoting member, and the arm structure on one side of the pivoting member can pivot to be blocked by the release position fixing member, so that the arm structure is contacted and magnetically attracted with the release position fixing member.

In an embodiment, when the linkage bridge drives the contact to realize the disengagement, the movable part moves to be in contact with the disengagement position fixing part and is magnetically attracted, so that the disengagement of the contact is kept.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the first and second movable members 271, 272 are each made of a permanent magnet, and the first and second contact- position fixing members 281, 282 and the first and second disengagement- position fixing members 291, 292 are each made of magnetic steel.

According to the switch assembly 200 of the present embodiment, the moving parts with a small number are designed to be made of permanent magnets, and the fixing parts with a large number are designed to be made of magnetic steel, which is beneficial to saving the permanent magnet material with high cost and reducing the cost.

In one embodiment, the permanent magnet may refer to a hard magnetic material that can constantly maintain magnetism after being magnetized. In one embodiment, permanent magnets can be classified as natural permanent magnets (e.g., magnetite) and artificial permanent magnets (e.g., metal and alloy permanent magnets, ferrite permanent magnets, rare earth permanent magnets, composite permanent magnets, etc.). In one embodiment, the magnetic steel may be a metal or a composite metal composed of one or more strong metals capable of being attracted by the permanent magnet.

In an embodiment, the moving part is made of a permanent magnet, which may mean that the moving part is made entirely or at least partially of a permanent magnet. In one embodiment, the touch position fixing member and the release position fixing member are made of magnetic steel, which may mean that the touch position fixing member and the release position fixing member are made of magnetic steel in whole or at least in part.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to this embodiment, the first and second switches are mirror symmetrically mounted in the first and second mounting blocks 251, 252 such that the first and second electromagnets 211, 212 are near the outside of the frame 260 and the first and second linkage bridges 221, 222 are near the middle of the frame 260.

According to the switch assembly 200 of the present embodiment, the mirror-symmetrical structure arrangement is advantageous in improving convenience of installation and wiring on the one hand, and in helping to make the frequently moving parts (such as the ganged bridge) less susceptible to external interference on the other hand.

In one embodiment, mirror symmetry may refer to two patterns as mirror symmetry if a mirror is placed along the axis of symmetry of the two patterns, such that the image of one pattern in the mirror is exactly coincident with the other pattern. In one embodiment, the first and second electromagnets 211, 212 are located near the outer side of the frame 260 and the first and second linkage bridges 221, 222 are located near the middle of the frame 260, which may mean that the first electromagnet 211 and the second electromagnet 212 are located mirror symmetrically and the first linkage bridge 221 and the second linkage bridge 222 are located mirror symmetrically, wherein the first and second linkage bridges 221, 222 are located closer to the axis of symmetry and thus closer to the middle of the frame 260 than the first and second electromagnets 212, and the first and second electromagnets 212 are located further from the axis of symmetry and thus further from the middle of the frame 260 and near the outer side of the frame 260 than the first and second linkage bridges 221, 222.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the first mounting seat 251 includes a first recess 253, a first slideway 255 and a first concave portion 257, the first electromagnet 211, the first movable member 271, the first contact position fixing member 281, the first disengagement position fixing member 291 are mounted in the first recess 253, the first link bridge 221 and the first position sensing element are mounted in the first slideway 255, and the first contact 231 is mounted in the first concave portion 257; second mounting base 252 includes a second recess 254, a second runner 256, and a second recess 258, second electromagnet 212, second moveable member 272, second contact position fixing member 282, and second disengagement position fixing member 292 are mounted in second recess 254, second linkage bridge 222 and the second position sensing element are mounted in second runner 256, and second contact 232 is mounted in second recess 258.

According to the switch assembly 200 of the present embodiment, the installation of the respective components of the switch in different accommodation spaces is advantageous in maintaining the stability of the relative position and the relative movement between the respective components, and in protecting the respective components from the external environment as much as possible and from interference and influence from other components.

In an embodiment, the notches and recesses may refer to portions having a concave shape and the runners may refer to platforms, channels or grooves capable of allowing the components to slide therein. In one embodiment, the electromagnet, the movable member, the contact position fixing member and the disengagement position fixing member are installed in the recess, which may mean that the electromagnet, the movable member, the contact position fixing member and the disengagement position fixing member are installed in a space formed by the recessed shape of the recess. In one embodiment, the gangway bridge and the position sensing element are mounted in a slide, which may mean that the gangway bridge and the position sensing element are mounted in a channel of the slide that is capable of allowing the component to slide. In an embodiment, the contact is mounted in the recess, which may mean that the contact is mounted in a space formed by a concave shape of the recess.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the frame 260 includes an upper beam 261, a lower beam 262, a left beam 263, a right beam 264, and a center pillar 265, the upper beam 261, the left beam 263, the lower beam 262, and the center pillar 265 surrounding the first mount 251, and the upper beam 261, the right beam 264, the lower beam 262, and the center pillar 265 surrounding the second mount 252.

According to the switch assembly 200 of the present embodiment, the frame 260 is formed by the elongated beam and the column and the mounting seat is surrounded, which is advantageous to provide a firm support structure system for the switch in the switch assembly 200, and to reduce the consumption of materials and the overall weight, thereby reducing the manufacturing cost while ensuring the reliability.

In one embodiment, the beam and the column may be an elongated arm structure, which may be classified into a linear shape, a curved shape, and a combination of the linear shape and the curved shape according to different shapes. In one embodiment, the upper, lower, left and right directions are only directions relative to the drawing plane, and are used for distinguishing parts at different positions, and are not used for limiting the actual positions of the parts. In one embodiment, the upper beam 261 may refer to a beam that extends laterally above. In one embodiment, the lower beam 262 may refer to a beam that extends laterally below. In one embodiment, the left beam 263 may refer to a beam that extends vertically on the left side. In one embodiment, right beam 264 may refer to a beam that extends vertically on the right side. In one embodiment, the center post 265 may refer to a columnar structure that extends vertically at or near a center position of the frame 260.

In one embodiment, wrapping may refer to placing around an object to define the boundary of the object. In one embodiment, the upper beam 261, the left beam 263, the lower beam 262 and the middle column 265 surround the first mounting seat 251, which may mean that the upper beam 261, the left beam 263, the lower beam 262 and the middle column 265 surround the periphery of the first mounting seat 251 (on a certain plane), define the boundary of the first mounting seat 251, and enable the first mounting seat 251 to be arranged at the left side of the middle column 265. In one embodiment, the upper beam 261, the right beam 264, the lower beam 262 and the middle column 265 surround the second mounting seat 252, which may mean that the upper beam 261, the right beam 264, the lower beam 262 and the middle column 265 surround the periphery of the first mounting seat 251 (on a certain plane), define the boundary of the first mounting seat 251, and enable the first mounting seat 251 to be arranged at the right side of the middle column 265.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the first and second runners 255, 256 are disposed in parallel on both sides of the center post 265, the first notch 253 is disposed between the first runner 255 and the left beam 263, the second notch 254 is disposed between the second runner 256 and the right beam 264, the first recess 257 is disposed between the first notch 253 and the upper beam 261, and the second recess 258 is disposed between the second notch 254 and the upper beam 261.

According to the switch assembly 200 of the present embodiment, the parts that need to be moved frequently are disposed at the relative middle positions of the frame 260, and the relatively immovable parts are disposed at the relative edges of the frame 260, which is advantageous for protecting the moving parts from external interference and for improving the service life of the moving parts.

In one embodiment, the parallel arrangement may mean that two objects are arranged somewhere in a posture in which their longitudinal directions are parallel to each other. In one embodiment, the first and second runners 255, 256 are disposed in parallel on opposite sides of the center post 265. by this, it can be meant that the first runner 255 and the second runner 256 are disposed in parallel on opposite sides of the center post 265 such that their sliding channels are oriented parallel to each other.

In an embodiment, the first recess 253 is disposed between the first slideway 255 and the left beam 263, which may mean that the first recess 253 is disposed at any position in a space region formed between the first slideway 255 and the left beam 263. In an embodiment, the second notch 254 is disposed between the second runner 256 and the right beam 264, which may mean that the second notch 254 is disposed at any position in the spatial region formed between the second runner 256 and the right beam 264. In an embodiment, the first concave portion 257 is disposed between the first recess 253 and the upper beam 261, which may mean that the first concave portion 257 is disposed at any position in a spatial region formed between the first recess 253 and the upper beam 261. In an embodiment, the second recess 258 is disposed between the second notch 254 and the upper beam 261, which may mean that the second recess 258 is disposed at any position in a spatial region formed between the second notch 254 and the upper beam 261.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

According to the present embodiment, the frame 260 further includes a bottom plate 295, and the bottom plate 295 is provided at the rear side of the upper beam 261, the lower beam 262, the left beam 263, the right beam 264, and the center post 265 as the bottom of the first and second mount blocks 251, 252.

According to the switch module 200 of the present embodiment, by adding the bottom plate 295, it is advantageous to increase the number of parts for stably mounting and supporting the switch module 200 and to protect the parts of the switch module 200 from the environment.

In one embodiment, the bottom panel 295 may refer to a plate-like structure that acts to support and/or protect an object below the object. In one embodiment, the back side may refer to the side of the drawing from which the reader is away from the reader when viewing the drawing. It should be noted that the back side here is only with respect to fig. 3, and the position of the bottom plate 295 may be on the front side or in other orientations for other views or in actual use. In one embodiment, the floor 295 is disposed at the rear side of the upper beam 261, the lower beam 262, the left beam 263, the right beam 264, and the center column 265. this may mean that the floor 295 is closer to the rear side than the upper beam 261, the lower beam 262, the left beam 263, the right beam 264, and the center column 265 in space, but is interconnected with at least a portion of the frame 260 structure.

In an embodiment, the bottom plate 295 serves as a bottom of the first and second mounting seats 251 and 252, which may mean that, when viewed in a vertical direction, a direction in which an object to be mounted enters the mounting seats is an upward direction, a lower direction of the first and second mounting seats 251 and 252 is a bottom, and the bottom plate 295 is disposed at the bottom of the first and second mounting seats 251 and 252, and serves as a bottom platform for the object to be mounted, for supporting and/or protecting the object to be mounted. In one embodiment, the bottom plate 295 serves as the bottom of the first and second mounting seats 251, 252, which can be implemented by forming one bottom plate 295 as the bottom of the first mounting seat 251 and the bottom of the second mounting seat 252; alternatively, the two bottom plates 295 respectively form the bottoms of the first mounting seat 251 and the second mounting seat 252; other scenarios are also possible.

The following describes another embodiment of the present invention, which is a specific example of the embodiment of fig. 2 and may include one or more features of one or more of all of the embodiments described above.

In the present embodiment, the switch assembly 200 generally includes a first switch, a second switch, and a frame 260. The first switch and the second switch are substantially identical in structure but mirror images of each other. The specific structure of the switch is described below by taking the first switch as an example, and those skilled in the art will understand that the detailed description of the structure can also be applied to the second switch, only the position and direction need to be adjusted.

The first switch includes a first contact 231. In the present embodiment, the first contact 231 is a normally closed contact, i.e., a b-type contact. The first contact 231 is composed of two metal contacts disposed above and below, respectively, and a spring connected to the metal contact (movable contact) below. The tail end of the reed is connected with the first linkage bridge 221, so that the first linkage bridge 221 can drive the moving contact below to move up and down, and when the first linkage bridge 221 slides downwards, the moving contact moves downwards simultaneously, so that the moving contact is separated from the fixed contact above; when the first linkage bridge 221 slides upward, the movable contact moves upward at the same time, resulting in the movable contact contacting with the fixed contact. What urges the first link bridge 221 to move up and down is electromagnetic force formed by the first electromagnet 211. The magnetic force generated by the first electromagnet 211 after being energized is transmitted to the first contact position fixing member 281 and the first release position fixing member 291 made of magnetic steel through the vertically extending iron core and the laterally extending armature, thereby generating a magnetic attraction force with respect to the first movable member 271 made of a permanent magnet. The first movable member 271 is pivotable, and has an H-shape, for example. The first electromagnet 211 may be a stacked electromagnet, and includes two groups of electromagnets with different winding directions, and the two groups of electromagnets may be divided into two sections along the axial direction, or divided into two layers along the radial direction. When the first contact coil of the first electromagnet 211 is energized, the electromagnetic field of the first electromagnet 211 causes the first contact position fixing 281 to generate a magnetic attraction force on the first moveable member 271, causing the first moveable member 271 to pivot downward until contacting the first contact position fixing 281 (and may not contact the first contact position fixing 281). At this time, the first linkage bridge 221 is shifted upward by the pivot arm of the first movable member 271, and then drives the movable contact to be in close contact with the fixed contact. Conversely, when the first trip coil of the first electromagnet 211 is energized, the electromagnetic field of the first electromagnet 211 causes the first trip position fixing member 291 to generate a magnetic attraction force on the first moveable member 271, causing the first moveable member 271 to pivot upward until contacting the first trip position fixing member 291 (or not contacting the first trip position fixing member 291). At this time, the first linkage bridge 221 is shifted downward by the pivot arm of the first movable member 271, and then drives the movable contact to separate and disengage from the fixed contact.

In the present embodiment, the first and second switches are mounted in first and second mounts 251, 252, respectively, formed by the frame 260. Taking the first switch as an example, the first mounting base 251 includes a first recess 253 on the upper side, a first slide track 255 on the right side, and a first concave portion 257 on the left side, the first electromagnet 211 is mounted on the left side portion in the first recess 253, and the first magnetic retaining structure (i.e., the first movable member 271, the first contact-position fixing member 281, and the first disengagement-position fixing member 291) is mounted on the right side portion in the first recess 253. To the right of the first recess 253 is a vertically extending first slide 255 in which the first bridge 221 is able to slide translationally up and down. Above the first recess 253 and the first slideway 255 is a first concave portion 257, and a moving contact, a fixed contact and a reed of the first contact 231 are all installed in the first concave portion 257, wherein the reed extends transversely, the moving contact and the fixed contact are arranged on the right side of the reed, and the right end of the reed is connected with the upper end of the first linkage bridge 221.

In this embodiment, the first and second switches comprise first and second microswitches, respectively. First and second microswitches are disposed within the first and second ramps 255 and 256, respectively. Taking the first switch as an example, the first microswitch is provided in both the circuit of the first contact coil and the circuit of the first release coil of the first electromagnet 211, and can switch back and forth between on states of both the circuits. When the first contact 231 has made contact, the first microswitch switches from a state closing the circuit of the first contact coil to a state closing the circuit of the first disengagement coil, so that the circuit of the first contact coil is de-energized while the circuit of the first disengagement coil waits to be energized (energized if the power supply is able to supply power). When the first contact 231 has achieved disengagement, the first microswitch switches from a state closing the circuit of the first disengagement coil to a state closing the circuit of the first contact coil, causing the circuit of the first disengagement coil to be de-energized while the circuit of the first contact coil waits to be energized.

The concepts, principles and concepts of the invention have been described above in detail in connection with specific embodiments (including examples and illustrations). It will be appreciated by persons skilled in the art that embodiments of the present invention are not limited to the specific forms set forth herein, and that many modifications, alterations, and equivalents of the steps, methods, apparatus, and components described in the above embodiments may be made by those skilled in the art after reading this specification, and that such modifications, alterations, and equivalents are to be considered as falling within the scope of the present invention. The scope of the invention is only limited by the claims.

Claims (10)

1. A switch assembly, comprising:

the first switch comprises a first electromagnet, a first contact, a first linkage bridge and a first position sensing element, the first electromagnet is electrified to drive the first linkage bridge, so that the first linkage bridge drives the first contact to realize contact or disconnection, and the first linkage bridge triggers the first position sensing element;

the second switch comprises a second electromagnet, a second contact, a second linkage bridge and a second position sensing element, and the second electromagnet is electrified to drive the second linkage bridge, so that the second linkage bridge drives the second contact to realize contact or disconnection, and the second linkage bridge triggers the second position sensing element; and

a frame including a first mount and a second mount, the first and second switches being mounted in the first and second mounts, respectively.

2. The switch assembly of claim 1,

the first electromagnet comprises a first contact coil and a first disconnection coil, the first contact realizes connection after the first contact coil is electrified, and the first contact realizes disconnection after the first disconnection coil is electrified;

the second electromagnet comprises a second contact coil and a second disconnection coil, the second contact realizes connection after the second contact coil is electrified, and the second contact realizes disconnection after the second disconnection coil is electrified.

3. The switch assembly of claim 2,

the first position sensing element comprises a first microswitch that is activated by the first linkage bridge when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to an end position, such that the first microswitch opens the circuit of the first contact coil and allows the circuit of the first trip coil to be closed, and that is activated by the first linkage bridge when the first trip coil is energized and the first electromagnet drives the first linkage bridge to move to an end position, such that the first microswitch opens the circuit of the first trip coil and allows the circuit of the first contact coil to be closed;

the second position sensing element includes a second microswitch that is activated by the second linkage bridge when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to an end position such that the second microswitch opens the circuit of the second contact coil and allows the circuit of the second trip coil to be closed, and that is activated by the second linkage bridge when the second trip coil is energized and the second electromagnet drives the second linkage bridge to move to an end position such that the second microswitch opens the circuit of the second trip coil and allows the circuit of the second contact coil to be closed.

4. The switch assembly of claim 2,

the first position sensing element comprises a first position sensor that triggers the first position sensor when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to an end position such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first trip coil to be closed, and that triggers the first position sensor when the first trip coil is energized and the first electromagnet drives the first linkage bridge to move to an end position such that the first position sensor sends a signal to open the circuit of the first trip coil and allow the circuit of the first trip coil to be closed;

the second position sensing element includes a second position sensor that triggers the second position sensor when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to an end position such that the second position sensor sends a signal to open the circuit of the second contact coil and allow the circuit of the second de-energizing coil to be closed, and that triggers the second position sensor when the second de-energizing coil is energized and the second electromagnet drives the second linkage bridge to move to an end position such that the second position sensor sends a signal to open the circuit of the second de-energizing coil and allow the circuit of the second de-energizing coil to be closed.

5. The switch assembly of any one of claims 1 to 4,

the first switch further comprises a first magnetic holding structure, the first magnetic holding structure comprises a first moving part, a first contact position fixing part and a first disengagement position fixing part, the first moving part is connected with the first linkage bridge, when the first linkage bridge drives the first contact to achieve contact, the first moving part moves to be in contact with the first contact position fixing part and magnetically attracts, so that contact of the first contact is maintained, and when the first linkage bridge drives the first contact to achieve disengagement, the first moving part moves to be in contact with the first disengagement position fixing part and magnetically attracts, so that disengagement of the first contact is maintained;

the second switch further comprises a second magnetic holding structure, the second magnetic holding structure comprises a second moving part, a second contact position fixing part and a second disengagement position fixing part, the second moving part is connected with the second linkage bridge, when the second linkage bridge drives the second contact to achieve contact, the second moving part moves to be in contact with the second contact position fixing part and magnetically attracts, so that contact of the second contact is maintained, and when the second linkage bridge drives the second contact to achieve disengagement, the second moving part moves to be in contact with the second disengagement position fixing part and magnetically attracts, so that disengagement of the second contact is maintained.

6. The switch assembly of claim 5, wherein said first and second moving members are each made of a permanent magnet, and said first and second contact position fixing members and said first and second disengagement position fixing members are each made of magnetic steel.

7. The switch assembly of claim 5, wherein said first and second switches are mirror symmetrically mounted in said first and second mounts such that said first and second electromagnets are proximate an outer side of said frame and said first and second linkage bridges are proximate a middle of said frame.

8. The switch assembly of claim 7,

the first mounting seat comprises a first notch, a first slide way and a first concave part, the first electromagnet, the first movable piece, the first contact position fixing piece and the first disengagement position fixing piece are mounted in the first notch, the first linkage bridge and the first position sensing element are mounted in the first slide way, and the first contact is mounted in the first concave part;

the second mounting seat comprises a second notch, a second slide way and a second concave part, the second electromagnet, the second movable piece, the second contact position fixing piece and the second disengagement position fixing piece are mounted in the second notch, the second linkage bridge and the second position sensing element are mounted in the second slide way, and the second contact is mounted in the second concave part.

9. The switch assembly of claim 8, wherein the frame includes an upper beam, a lower beam, a left beam, a right beam, and a center post, the upper beam, the left beam, the lower beam, and the center post surrounding the first mount, the upper beam, the right beam, the lower beam, and the center post surrounding the second mount.

10. The switch assembly of claim 9, wherein the first and second runners are disposed in parallel on opposite sides of the center post, the first notch is disposed between the first runner and the left beam, the second notch is disposed between the second runner and the right beam, the first recess is disposed between the first notch and the upper beam, and the second recess is disposed between the second notch and the upper beam;

preferably, the frame further includes a bottom plate disposed at rear sides of the upper beam, the lower beam, the left beam, the right beam, and the middle column as bottoms of the first and second mounting seats.

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