Relay

Abstract

The utility model relates to a relay which comprises a movable contact component, arc extinguishing magnetic steel and an arc blocking piece. The arc extinguishing magnetic steel is arranged on the peripheral side of the movable contact part, and the arc blocking piece is arranged between the movable contact part and the arc extinguishing magnetic steel and used for blocking contact between the arc and the arc extinguishing magnetic steel. The arc extinguishing magnetic steel is arranged on the peripheral side of the moving contact component, and the magnetic field generated by the arc extinguishing magnetic steel can stretch the arc into a slender shape, so that the contact area between the arc and a surrounding medium can be increased, heat dissipation is accelerated, and cooling and extinguishing of the arc are realized. According to the relay, the arc blocking piece is arranged between the arc extinguishing magnetic steel and the movable contact component, and the arc blocking piece can block the arc, so that the arc can be prevented from being in contact with the arc extinguishing magnetic steel, the arc extinguishing magnetic steel is prevented from being demagnetized under the action of the high-temperature arc, arcing aggravation caused by demagnetization is avoided, and the failure time of the relay is prolonged.

Description

relay Technical Field

[0001] This application relates to the field of relay technology, and in particular to a relay. Background Technology

[0002] Common epoxy high-voltage relays use arc-resistant plastic for their inner cavity, with a magnet installed outside the cavity for arc extinguishing. Under high loads, the arc generated when the stationary and moving contacts separate has a prolonged burning time, which can erode the inner cavity. If the arc burns through the inner cavity, the high-temperature arc will demagnetize the magnet, which in turn will intensify the arcing, ultimately causing the high-voltage relay to fail. Summary of the Invention

[0003] Therefore, it is necessary to provide a relay that prevents the first and second arc-extinguishing magnets from demagnetizing under the action of a high-temperature electric arc, thereby avoiding demagnetization that could intensify the arc and prolong the relay's failure time.

[0004] A relay, comprising:

[0005] Moving contact components;

[0006] An arc-extinguishing magnet, wherein the arc-extinguishing magnet is disposed on the outer periphery of the moving contact component; and

[0007] An arc-blocking component is disposed between the moving contact component and the arc-extinguishing magnet, and the arc-blocking component is used to prevent the electric arc from contacting the arc-extinguishing magnet.

[0008] In one embodiment, in a first direction of the arc-extinguishing magnet, the arc-extinguishing magnet has a first arc-extinguishing end and a second arc-extinguishing end opposite to each other, and the arc-blocking member is capable of covering at least one of the first arc-extinguishing end and the second arc-extinguishing end.

[0009] In one embodiment, the arc-blocking member extends beyond the end face of at least one of the first arc-extinguishing end and the second arc-extinguishing end in the first direction.

[0010] In one embodiment, the movable contact component has a first end and a second end opposite to each other; at least two arc-extinguishing magnets are provided, namely a first arc-extinguishing magnet and a second arc-extinguishing magnet, the first arc-extinguishing magnet being disposed corresponding to the first end and the second arc-extinguishing magnet being disposed corresponding to the second end; at least two arc-blocking members are provided, namely a first arc-blocking member and a second arc-blocking member, the first arc-blocking member being disposed between the first arc-extinguishing magnet and the movable contact component, and the second arc-blocking member being disposed between the second arc-extinguishing magnet and the movable contact component.

[0011] In one embodiment, the first arc-extinguishing magnet is disposed on the side of the first end away from the second end, and the second arc-extinguishing magnet is disposed on the side of the second end away from the first end; the first arc-extinguishing end of the first arc-extinguishing magnet and the second arc-extinguishing end of the second arc-extinguishing magnet are disposed opposite to each other.

[0012] In one embodiment, the first arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the first arc-extinguishing magnet in the first direction; the second arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the second arc-extinguishing magnet in the first direction; or, the first arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the first arc-extinguishing magnet in the first direction; the second arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the second arc-extinguishing magnet in the first direction.

[0013] In one embodiment, two first arc-blocking members are provided. One first arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the first arc-extinguishing magnet in the first direction. The other first arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the first arc-extinguishing magnet in the first direction. Two second arc-blocking members are provided. One second arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the second arc-extinguishing magnet in the first direction. The other second arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the second arc-extinguishing magnet in the first direction.

[0014] In one embodiment, the polarity of the side of the first arc-extinguishing magnet facing the second arc-extinguishing magnet is one of the N pole and the S pole, and the polarity of the side of the second arc-extinguishing magnet facing the first arc-extinguishing magnet is the other of the N pole and the S pole.

[0015] In one embodiment, the arc-blocking member extends beyond at least one of the first arc-extinguishing end and the second arc-extinguishing end to two end faces in a second direction of the arc-extinguishing magnet, wherein the first direction is perpendicular to the second direction.

[0016] In one embodiment, the relay further includes an insulating base and an insulating cover. The insulating cover is disposed on the insulating base and surrounds the insulating base to form a receiving cavity. The moving contact component and the arc-blocking component are both disposed within the receiving cavity, and the arc-extinguishing magnet is disposed outside the receiving cavity.

[0017] In one embodiment, the insulating cover is provided with a receiving groove, the arc-extinguishing magnet is disposed in the receiving groove, and the groove wall is used to block the electric arc.

[0018] In one embodiment, the relay further includes a stationary contact disposed on the side of the insulating cover facing the insulating base, the stationary contact being capable of contacting or separating from the moving contact component.

[0019] In one embodiment, the inner wall of the insulating cover is provided with a first positioning groove, and the insulating seat is provided with a second positioning groove, with the first positioning groove and the second positioning groove being disposed opposite to each other; one end of the arc-blocking member is disposed in the first positioning groove, and the other end of the arc-blocking member is disposed in the second positioning groove.

[0020] In one embodiment, the arc-blocking element is at least one of a ceramic sheet, an iron sheet, and a copper sheet.

[0021] In one embodiment, the arc-blocking member has a plurality of arc-extinguishing plates on the side opposite to the arc-extinguishing magnet, and the plurality of arc-extinguishing plates are spaced apart along the second direction of the arc-extinguishing magnet.

[0022] In one embodiment, the arc-extinguishing plate is provided with an arc-extinguishing groove that penetrates the side of the arc-extinguishing plate away from the arc-extinguishing magnet to form a slot on the side of the arc-extinguishing plate away from the arc-extinguishing magnet; and / or, the arc-extinguishing groove penetrates two opposite surfaces of the arc-extinguishing plate along a second direction of the arc-extinguishing magnet.

[0023] The aforementioned relay, by incorporating an arc-extinguishing magnet on the outer periphery of the moving contact component, utilizes the magnetic field generated by the magnet to stretch the electric arc into a slender shape. This increases the contact area between the arc and the surrounding medium, accelerating heat dissipation and thus cooling and extinguishing the arc. Furthermore, an arc-blocking component is placed between the arc-extinguishing magnet and the moving contact component to prevent contact between the arc and the magnet. This prevents demagnetization of the magnet under the influence of the high-temperature arc, thus avoiding demagnetization that could intensify arcing and prolong the relay's failure time. Attached Figure Description

[0024] Figure 1 is a cross-sectional view of a relay according to an embodiment of this application.

[0025] Figure 2 is an exploded view of the upper part of the relay shown in Figure 1.

[0026] Figure 3 is a schematic diagram of the structure of the moving contact component, the first arc-blocking component, the second arc-blocking component, the first arc-extinguishing magnet, and the second arc-extinguishing magnet disposed on the insulating base according to an embodiment of this application.

[0027] Figure 4 is a top view of the diagram shown in Figure 3.

[0028] Figure 5 is a cross-sectional view of a relay with an arc-extinguishing structure according to another embodiment of this application.

[0029] Figure 6 is a schematic diagram of the structure of the moving contact, the first arc-blocking component, the second arc-extinguishing component, the first arc-extinguishing magnet, and the second arc-extinguishing magnet disposed on the insulating base.

[0030] Figure 7 is a schematic diagram of the second arc-blocking component with an arc-extinguishing structure shown in Figure 5.

[0031] Figure 8 is a schematic diagram showing the positions of the first arc-extinguishing magnet, the second arc-extinguishing magnet, the first arc-blocking member, and the second arc-blocking member relative to the moving contact member according to an embodiment of this application.

[0032] Figure 9 is a schematic diagram showing the positions of the first arc-extinguishing magnet, the second arc-extinguishing magnet, the first arc-blocking member, and the second arc-blocking member relative to the moving contact member according to an embodiment of this application.

[0033] Figure 10 is a schematic diagram showing the positions of the first arc-extinguishing magnet, the second arc-extinguishing magnet, the first arc-blocking member, and the second arc-blocking member relative to the moving contact member according to an embodiment of this application.

[0034] Explanation of icon numbers:

[0035] 10. Moving contact component; 11. First end; 12. Second end; 20. Stationary contact; 21. First stationary contact; 22. Second stationary contact; 30. Arc-extinguishing magnet; 31. First arc-extinguishing magnet; 311. First arc-extinguishing end; 312. Second arc-extinguishing end; 32. Second arc-extinguishing magnet; 40. Arc-blocking component; 41. First arc-blocking component; 411. First arc-extinguishing plate; 4111. First arc-extinguishing groove; 42. Second arc-blocking groove. Components; 421, Second arc extinguishing plate; 4211, Second arc extinguishing groove; 50, Insulating seat; 51, Second positioning groove; 60, Insulating cover; 61, First positioning groove; 62, Receiving cavity; 63, Receiving groove; 70, Push rod assembly; 71, Push rod; 72, First elastic element; 73, Support seat; 74, U-shaped bracket; 80, Coil frame; 81, Coil; 90, Moving iron core; 91, Yoke plate; 92, Magnetic guide cylinder. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] Referring to Figures 1 and 2, a relay provided in one embodiment of this application includes a moving contact component 10, an arc-extinguishing magnet 30, and an arc-blocking member 40. The arc-extinguishing magnet 30 is disposed on the outer periphery of the moving contact component 10. The arc-blocking member 40 is disposed between the moving contact component 10 and the arc-extinguishing magnet 30, and is used to prevent an electric arc from contacting the arc-extinguishing magnet 30.

[0038] The aforementioned relay, by providing an arc-extinguishing magnet 30 on the outer periphery of the moving contact component 10, generates a magnetic field that stretches the electric arc into a slender shape. This increases the contact area between the arc and the surrounding medium, accelerating heat dissipation and thus cooling and extinguishing the arc. Furthermore, by providing an arc-blocking member 40 between the arc-extinguishing magnet 30 and the moving contact component 10, the arc-blocking member 40 can block the arc, preventing contact between the arc and the arc-extinguishing magnet 30. This prevents the arc-extinguishing magnet 30 from demagnetizing under the influence of the high-temperature arc, thereby avoiding demagnetization that could intensify arcing and prolong the relay's failure time.

[0039] In one embodiment, referring to FIG4, the arc-extinguishing magnet 30 has a first arc-extinguishing end 311 and a second arc-extinguishing end 312 in a first direction, and the arc-blocking member 40 can cover at least one of the first arc-extinguishing end 311 and the second arc-extinguishing end 312. Here, X represents the first direction of the arc-extinguishing magnet 30. Thus, the arc-blocking member 40 is specifically designed according to the arc path of the magnetic blowout, resulting in strong targeting, significant anti-demagnetization effect, and also helping to reduce the size of the relay.

[0040] It should be noted that the arc-blocking member 40 is configured according to the magnetic blow-out direction of the electric arc. Optionally, if the magnetic blow-out direction of the electric arc is towards the first arc-extinguishing end 311, then the arc-blocking member 40 covers the first arc-extinguishing end 311. Optionally, if the magnetic blow-out direction of the electric arc is towards the second arc-extinguishing end 312, then the arc-blocking member 40 covers the second arc-extinguishing end 312. Optionally, if the magnetic blow-out direction of the electric arc is towards both the first arc-extinguishing end 311 and the second arc-extinguishing end 312, then the arc-blocking member 40 covers both the first arc-extinguishing end 311 and the second arc-extinguishing end 312.

[0041] Of course, in other embodiments, the arc-blocking member 40 may also cover the side of the arc-extinguishing magnet facing the moving contact member 10.

[0042] In one embodiment, referring to FIG4, the arc-blocking member 40 extends beyond the end face of at least one of the first arc-extinguishing end 311 and the second arc-extinguishing end 312 in the first direction. Thus, the arc-blocking member 40 can effectively block the electric arc, preventing the arc from contacting the end face of the arc-extinguishing magnet 30 in the first direction, thereby preventing the arc-extinguishing magnet 30 from demagnetizing under the action of the high-temperature electric arc.

[0043] Optionally, if the arc-blocking member 40 covers the first arc-extinguishing end 311, then the arc-blocking member 40 extends beyond the end face of the first arc-extinguishing end 311 in the first direction.

[0044] Optionally, if the arc-blocking member 40 covers the second arc-extinguishing end 312, then the arc-blocking member 40 extends beyond the end face of the second arc-extinguishing end 312 in the first direction.

[0045] Optionally, referring to Figure 4, if the arc-blocking member 40 covers the first arc-extinguishing end 311 and the second arc-extinguishing end 312, then the arc-blocking member 40 extends beyond the end faces of the first arc-extinguishing end 311 and the second arc-extinguishing end 312 in the first direction.

[0046] In one embodiment, referring to FIG1, the movable contact member 10 has a first end 11 and a second end 12 opposite to each other.

[0047] Optionally, referring to Figure 2, the movable contact component 10 is a movable contact piece, and the first end 11 and the second end 12 are the two ends of the movable contact piece in the length direction.

[0048] Furthermore, referring to Figures 1 and 2, at least two arc-extinguishing magnets 30 are provided, namely a first arc-extinguishing magnet 31 and a second arc-extinguishing magnet 32. The first arc-extinguishing magnet 31 is provided on the outer periphery of the first end 11, and the second arc-extinguishing magnet 32 ​​is provided on the outer periphery of the second end 12.

[0049] Further, referring to Figures 1 and 2, the arc-blocking member 40 is provided with at least two parts, namely a first arc-blocking member 41 and a second arc-blocking member 42. The first arc-blocking member 41 is disposed between the first arc-extinguishing magnet 31 and the moving contact member 10, and the second arc-blocking member 42 is disposed between the second arc-extinguishing magnet 32 ​​and the moving contact member 10. In this way, the first arc-blocking member 41 can block the arc generated at the first end 11, thereby preventing the arc generated at the first end 11 from contacting the first arc-extinguishing magnet 31, and thus preventing the first arc-extinguishing magnet 31 from demagnetizing under the action of the high-temperature arc; the second arc-blocking member 42 can block the arc generated at the second end 12, thereby preventing the arc generated at the second end 12 from contacting the second arc-extinguishing magnet 32, and thus preventing the second arc-extinguishing magnet 32 ​​from demagnetizing under the action of the high-temperature arc.

[0050] In one embodiment, referring to FIG1, the first arc-extinguishing magnet 31 is disposed on the side of the first end 11 away from the second end 12, and the second arc-extinguishing magnet 32 ​​is disposed on the side of the second end 12 away from the first end 11.

[0051] Of course, in other embodiments, referring to FIG8, the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are respectively arranged at two diagonal positions of the moving contact component 10.

[0052] Of course, in other embodiments, referring to FIG9, two first arc-extinguishing magnets 31 are provided, one of which is located on one side of the first end 11 in the width direction of the moving contact member 10, and the other is located on the other side of the first end 11 in the width direction of the moving contact member 10. Two second arc-extinguishing magnets 32 are provided, one of which is located on one side of the second end 12 in the width direction of the moving contact member 10, and the other is located on the other side of the second end 12 in the width direction of the moving contact member 10.

[0053] Of course, in other embodiments, referring to FIG10, three of each of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are provided. One of the first arc-extinguishing magnets 31 is provided on one side of the moving contact member 10 along its length, and the other two first arc-extinguishing magnets 31 are respectively provided on both sides of the first end 11 along its width. One of the second arc-extinguishing magnets 32 is provided on the other side of the moving contact member 10 along its length, and the other two second arc-extinguishing magnets 32 are provided on both sides of the second end 12 along its width.

[0054] In one embodiment, referring to FIG4, the lengths of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​in the first direction are greater than the length of the moving contact member 10 in the first direction. In the first direction, both the first arc-extinguishing end 311 and the second arc-extinguishing end 312 extend beyond the moving contact member 10. It can be understood that the length of the moving contact member 10 in the first direction is equal to the width of the moving contact member 10.

[0055] Specifically, the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31 is disposed opposite to the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32, and the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 is disposed opposite to the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32.

[0056] In one embodiment, the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are different.

[0057] Optionally, the side of the first arc-extinguishing magnet 31 facing the second arc-extinguishing magnet 32 ​​is the S pole, and the side of the second arc-extinguishing magnet 32 ​​facing the first arc-extinguishing magnet 31 is the N pole.

[0058] Optionally, the side of the first arc-extinguishing magnet 31 facing the second arc-extinguishing magnet 32 ​​is the N pole, and the side of the second arc-extinguishing magnet 32 ​​facing the first arc-extinguishing magnet 31 is the S pole.

[0059] When the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are different, under the action of the magnetic field, the electric arc generated by the separation of the moving contact component 10 and the stationary contact 20 blows arcs toward different sides of the moving contact component 10 in the first direction.

[0060] In another embodiment, the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are the same.

[0061] Optionally, the side of the first arc-extinguishing magnet 31 facing the second arc-extinguishing magnet 32 ​​and the side of the second arc-extinguishing magnet 32 ​​facing the first arc-extinguishing magnet 31 are both S poles.

[0062] Optionally, the side of the first arc-extinguishing magnet 31 facing the second arc-extinguishing magnet 32 ​​and the side of the second arc-extinguishing magnet 32 ​​facing the first arc-extinguishing magnet 31 are both N poles.

[0063] When the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are the same, under the action of the magnetic field, the electric arc generated by the separation of the moving contact component 10 and the stationary contact 20 will blow arc towards the same side of the moving contact component 10 in the first direction.

[0064] It should be noted that the specific positions of the first arc-blocking component 41 and the second arc-blocking component 42 are set according to whether the relay has polarity and the polarity distribution of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32.

[0065] If the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are different, and the relay has positive and negative poles, then the first arc-blocking component 41 and the second arc-blocking component 42 can be arranged in two ways, as follows:

[0066] In the first arrangement, the first arc-blocking member 41 is disposed in the space formed by the moving contact member 10 and the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31, and covers the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31. The second arc-blocking member 42 is disposed in the space formed by the moving contact member 10 and the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32, and covers the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32. In this way, the arc-blocking member 40 is set according to the arc path of the magnetic blow-out, which is highly targeted, has a significant anti-demagnetization effect, and also helps to reduce the size of the relay. In addition, the arc-blocking member 40 is set according to the arc path of the magnetic blow-out, which can also reduce the material used for the first arc-blocking member 41 and the second arc-blocking member 42, thereby reducing costs.

[0067] In order to improve the arc-blocking effect of the first arc-blocking member 41 and the second arc-blocking member 42, the first arc-blocking member 41 extends beyond the end face of the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31 in the first direction, and the second arc-blocking member 42 extends beyond the end face of the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32 ​​in the first direction.

[0068] The second arrangement involves the first arc-blocking member 41 being positioned within the space formed by the moving contact member 10 and the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31, and covering the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31. The second arc-blocking member 42 is positioned within the space formed by the moving contact member 10 and the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32, and covers the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32. In this way, the arc-blocking member 40 is positioned according to the arc path of the magnetic blow-out, resulting in strong targeting, significant anti-demagnetization effect, and also helping to reduce the size of the relay. Furthermore, positioning the arc-blocking member 40 according to the arc path of the magnetic blow-out also reduces the material used for the first arc-blocking member 41 and the second arc-blocking member 42, thus lowering costs.

[0069] In order to improve the arc-blocking effect of the first arc-blocking member 41 and the second arc-blocking member 42, the first arc-blocking member 41 extends beyond the end face of the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 in the first direction, and the second arc-blocking member 42 extends beyond the end face of the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32 ​​in the second direction.

[0070] Of course, in other embodiments, if the polarities of the two opposite sides of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​are the same, and the relay has positive and negative poles, then the first arc-blocking member 41 and the second arc-blocking member 42 can be arranged in two ways, as follows:

[0071] In the first arrangement, the first arc-blocking member 41 is disposed in the space formed by the moving contact member 10 and the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31, and covers the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31. The second arc-blocking member 42 is disposed in the space formed by the moving contact member 10 and the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32, and covers the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32.

[0072] In order to improve the arc-blocking effect of the first arc-blocking member 41 and the second arc-blocking member 42, the first arc-blocking member 41 extends beyond the end face of the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31 in the first direction, and the second arc-blocking member 42 extends beyond the end face of the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32 ​​in the first direction.

[0073] The second arrangement involves a first arc-blocking member 41 positioned within the space formed by the moving contact member 10 and the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31, covering the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31. A second arc-blocking member 42 is positioned within the space formed by the moving contact member 10 and the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32, covering the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32.

[0074] In order to improve the arc-blocking effect of the first arc-blocking member 41 and the second arc-blocking member 42, the first arc-blocking member 41 extends beyond the end face of the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 in the first direction, and the second arc-blocking member 42 extends beyond the end face of the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32 ​​in the first direction.

[0075] If the relay has no positive or negative terminals, referring to Figure 4, there are two first arc-blocking components 41. One first arc-blocking component 41 is located in the space formed by the moving contact component 10 and the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31, and covers the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31. The other first arc-blocking component 41 is located in the space formed by the moving contact component 10 and the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31, and covers the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31. There are two second arc-blocking components 42. One second arc-blocking component 42 is located in the space formed by the moving contact component 10 and the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32, and covers the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32. The other second arc-blocking component 42 is located in the space formed by the moving contact component 10 and the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32, and covers the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32. This design, with the arc-blocking component 40 positioned according to the arc path of the magnetic blow-out, provides a highly targeted and effective anti-demagnetization effect, while also helping to reduce the size of the relay. Furthermore, by positioning the arc-blocking component 40 according to the arc path of the magnetic blow-out, the material used in the first arc-blocking component 41 and the second arc-blocking component 42 can be reduced, thus lowering costs.

[0076] To improve the arc-blocking effect of the first arc-blocking member 41 and the second arc-blocking member 42, referring to Figure 4, the first arc-blocking member 41 corresponding to the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31 extends beyond the end face of the first arc-extinguishing end 311 of the first arc-extinguishing magnet 31 in the first direction; the first arc-blocking member 41 corresponding to the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 extends beyond the end face of the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 in the first direction; the second arc-blocking member 42 corresponding to the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32 ​​extends beyond the end face of the first arc-extinguishing end 311 of the second arc-extinguishing magnet 32 ​​in the first direction; and the second arc-blocking member 42 corresponding to the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32 ​​extends beyond the end face of the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32 ​​in the first direction.

[0077] In one embodiment, referring to Figures 1 and 3, the arc-blocking member 40 extends beyond at least one of the first arc-extinguishing end 311 and the second arc-extinguishing end 312 at both end faces of the arc-extinguishing magnet 30 in a second direction. The first direction is perpendicular to the second direction, and the second direction of the arc-extinguishing magnet is represented by Y. This effectively blocks the electric arc, increases the arc ignition path, and prevents the arc from blowing towards the arc-extinguishing magnet 30, thus preventing the arc-extinguishing magnet 30 from demagnetizing under the action of the high-temperature arc.

[0078] Taking Figure 1 as an example, the upper end of the arc-blocking member 40 extends beyond the upper surface of the arc-extinguishing magnet 30, and the lower end of the arc-blocking member 40 extends beyond the lower surface of the arc-extinguishing magnet 30.

[0079] Specifically, the first arc-blocking member 41 extends beyond at least one of the first arc-extinguishing end 311 and the second arc-extinguishing end 312 of the first arc-extinguishing magnet 31 to the two end faces in the second direction, and the second arc-blocking member 42 extends beyond at least one of the first arc-extinguishing end 311 and the second arc-extinguishing end 312 of the second arc-extinguishing magnet 32 ​​to the two end faces in the second direction.

[0080] In one embodiment, the arc-blocking components are all ceramic sheets. Thus, ceramic sheets possess high-temperature resistance, remaining stable in high-temperature environments and not easily deformed or damaged. Simultaneously, ceramic sheets have high hardness, resisting wear and scratches, which helps to extend service life. Furthermore, ceramic sheets have excellent corrosion resistance, allowing for long-term use in various harsh environments without being affected by corrosion.

[0081] Of course, in other embodiments, the arc-blocking element can also be a high-temperature resistant metal sheet, such as a copper sheet or an iron sheet. If the arc-blocking element is an iron sheet, the iron sheet has an arc-inducing function, which can increase the attraction of the electric arc.

[0082] In one embodiment, referring to Figures 1 and 2, the relay further includes a stationary contact 20. The moving contact 10 is movable toward or away from the stationary contact 20 to make or separate from it. When the moving contact 10 is in contact with the stationary contact 20, it enables the circuit to be connected. When the moving contact 10 is separated from the stationary contact 20, it enables the circuit to be disconnected. When the moving contact 10 is separated from the stationary contact 20, an electric arc is generated between them.

[0083] Furthermore, referring to Figure 1, there are two stationary contacts 20, namely a first stationary contact 21 and a second stationary contact 22. The first stationary contact 21 is disposed opposite to the first end 11, and the second stationary contact 22 is disposed opposite to the second end 12.

[0084] In one embodiment, referring to Figures 1 and 5, the relay further includes a coil frame 80, a moving iron core 90, and a push rod component 70. A coil 81 is wound around the outer peripheral surface of the coil frame 80, and a through hole is provided in the middle of the coil frame 80, within which the moving iron core 90 is movably disposed. A first end of the push rod component 70 is connected to the moving iron core 90, and a second end of the push rod component 70 is connected to the moving contact component 10.

[0085] When coil 81 is not energized, the moving contact 10 is separated from the stationary contact 20. When coil 81 is energized, the moving iron core 90 moves towards the stationary contact 20 under the action of the magnetic field, thereby driving the push rod component 70 to move synchronously, so that the moving contact 10 contacts the stationary contact 20. In this way, the magnetic field force generated when coil 81 is energized provides power for the movement of the moving iron core 90 and the push rod component 70.

[0086] Further, referring to Figures 2 and 5, the push rod component 70 includes a push rod 71, a first elastic element 72, a support base 73, and a U-shaped bracket 74. The first end of the push rod 71 is connected to the moving iron core 90, and the second end of the push rod 71 is connected to the support base 73. The first elastic element 72 is disposed on the support base 73, and the movable contact component 10 is disposed on the side of the first elastic element 72 facing away from the support base 73. The movable contact component 10 and the first elastic element 72 are mounted on the support base 73 via the U-shaped bracket 74, thus achieving the connection between the push rod component 70 and the movable contact component 10.

[0087] In one embodiment, referring to FIG5, the relay further includes a magnetic cylinder 92, a stationary magnetic conductor, and a second elastic element. The magnetic cylinder 92 is disposed within a through hole and has a receiving cavity and a through hole communicating with the receiving cavity. The first end of the push rod 71 passes through the hole and is disposed within the receiving cavity, while the second end of the push rod 71 is located outside the magnetic cylinder 92. A moving iron core 90 is movably disposed within the receiving cavity and is fixedly connected to the push rod 71. The stationary magnetic conductor is disposed on the side of the moving iron core 90 facing the moving contact component 10. The second elastic element is disposed within the magnetic cylinder 92, with one end connected to the stationary magnetic conductor and the other end connected to the moving iron core 90. The second elastic element is capable of extending and retracting along the axial direction of the push rod 71.

[0088] When coil 81 is energized, the moving iron core 90 moves towards the stationary magnetic conductor under the action of the magnetic field force, and the second elastic element is gradually compressed. When coil 81 is de-energized, the moving iron core 90 moves away from the stationary magnetic conductor under the restoring force of the second elastic element, so that the moving iron core 90 returns to its original position.

[0089] Optionally, the stationary magnetic conductor is a yoke plate 91, which is located on the side of the magnetic cylinder 92 facing the moving contact component 10. The yoke plate 91 cooperates with the moving iron core 90 to achieve magnetic conduction.

[0090] Optionally, the static magnetic conductor is a static iron core, which is located inside the magnetic cylinder 92 and fixedly connected to the yoke plate 91. The static iron core and the moving iron core 90 cooperate to achieve magnetic conduction.

[0091] In one embodiment, referring to Figures 1, 2, and 3, the relay further includes an insulating base 50 and an insulating cover 60. The insulating base 50 is disposed on the side of the stationary magnetic component away from the coil frame 80, and the insulating cover 60 is disposed on the side of the insulating base 50 away from the stationary magnetic component, forming a receiving cavity 62 together with the insulating base 50. The moving contact component 10 and the arc-blocking component 40 are both disposed within the receiving cavity 62, and the arc-extinguishing magnet 30 is disposed outside the receiving cavity 62.

[0092] Optionally, both the insulating base 50 and the insulating cover 60 are made of plastic. Of course, in other embodiments, the insulating base 50 and the insulating cover 60 may also be made of ceramic or other materials, and are not limited thereto.

[0093] In one embodiment, referring to FIG1, the insulating cover 60 is provided with a receiving groove 63, and the arc-extinguishing magnet 30 is disposed in the receiving groove 63. The groove wall of the receiving groove 63 is used to block the electric arc.

[0094] It should be noted that although the walls of the receiving groove 63 can block the electric arc, after the relay has been operating for a long time, the electric arc will burn the insulating cover 60, causing the arc-extinguishing magnet 30 to gradually demagnetize under the action of the high-temperature electric arc. The gradual demagnetization of the arc-extinguishing magnet 30 will further aggravate the burning of the insulating cover 60 by the electric arc, leading to the complete demagnetization of the arc-extinguishing magnet 30, thereby accelerating the failure time of the relay. In this embodiment, by setting the arc-blocking component 40, the arc-blocking component 40 can block the electric arc, preventing the electric arc from burning the insulating cover 60, and at the same time preventing the arc-extinguishing magnet 30 from demagnetizing under the action of the high-temperature electric arc.

[0095] In one embodiment, referring to Figures 1 and 4, the stationary contact 20 is located on the side of the insulating cover 60 opposite to the insulating base 50. Thus, the insulating cover 60 provides a mounting position for the stationary contact 20, facilitating its installation.

[0096] In one embodiment, referring to FIG1, the inner sidewall of the insulating cover 60 is provided with a first positioning groove 61, and the insulating seat 50 is provided with a second positioning groove 51, with the first positioning groove 61 and the second positioning groove 51 being arranged opposite to each other.

[0097] Further, referring to Figure 1, one end of the arc-blocking component 40 is located in the first positioning groove 61, and the other end is located in the second positioning groove 51. Thus, connecting both ends of the arc-blocking component 40 to the insulating base 50 and the insulating cover 60 respectively improves the reliability of the arc-blocking component 40 installation, avoids instability such as shaking, and thus enhances its arc-blocking effect. Furthermore, using the first positioning groove 61 and the second positioning groove 51 to fix the arc-blocking component 40 eliminates the need for additional components, improving the ease of assembly and reducing the size of the relay.

[0098] Of course, in other embodiments, one end of the arc-blocking member 40 is provided with a first positioning groove 61, and the other end of the arc-blocking member 40 is provided with a second positioning groove 51. The insulating cover 60 is provided with a first positioning protrusion and a second positioning protrusion, the first positioning protrusion being disposed in the first positioning groove 61, and the second positioning protrusion being disposed in the second positioning groove 51.

[0099] It should be noted that if the first arc-blocking component 41 and the insulating base 50 are made of the same material, for example, if the first arc-blocking component 41 and the insulating base 50 are both plastic parts, then the first arc-blocking component 41 can be integrally formed with the insulating base 50.

[0100] When the magnetic field strength of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​weakens, the arc generated by the breakage of the first stationary contact 21 and the moving contact component 10 may deviate from the first arc-blocking member 41. Therefore, in this embodiment, the first arc-blocking member 41 is provided with a first arc-extinguishing structure on the side opposite to the first arc-extinguishing magnet 31. The first arc-extinguishing structure is used to ignite and cut the arc generated by the breakage of the first stationary contact 21 and the moving contact component 10 to achieve arc extinguishing. In this way, under the action of the first arc-extinguishing structure, rapid arc extinguishing can be achieved. At the same time, the first arc-blocking member 41 can not only support the first arc-extinguishing structure, but also block the arc.

[0101] It should be noted that in this embodiment, the first arc-extinguishing structure is used to extinguish the electric arc, so the length of the first arc-blocking member 41 relative to the first arc-extinguishing magnet 31 is not limited. Optionally, in the second direction, both ends of the first arc-blocking member 41 extend beyond the first arc-extinguishing magnet 31, which can improve the arc-blocking effect of the first arc-blocking member 41. Optionally, in the second direction, the first arc-blocking member 41 is flush with the first arc-extinguishing magnet 31.

[0102] In one embodiment, referring to Figures 5 and 6, the first arc-extinguishing structure includes a plurality of first arc-extinguishing plates 411, which are spaced apart along a second direction. Thus, by employing a segmented arrangement of multiple first arc-extinguishing plates 411, the arc can be cut and the voltage drop can be reduced, achieving rapid arc extinguishing.

[0103] It should be noted that the spacing between two adjacent first arc-extinguishing plates 411 can be set according to the magnetic field strength. Optionally, the spacing between two adjacent first arc-extinguishing plates 411 can be greater than or equal to 1.5cm, which can improve the arc-extinguishing effect.

[0104] Optionally, the first arc-extinguishing plate 411 is an iron sheet, which has an arc-inducing function and can increase the attraction of electric arcs. Of course, in other embodiments, the first arc-extinguishing plate 411 can also be a copper sheet, and is not limited thereto.

[0105] It should be noted that the first arc-blocking component 41 can be a plastic sheet, and the first arc-extinguishing plate 411 can be injection molded as an insert. This can reduce the weight of the first arc-blocking component 41 and facilitate the processing and molding of the first arc-blocking component 411 and the first arc-extinguishing plate 411. Of course, the first arc-blocking component 41 can also be a ceramic sheet.

[0106] In one embodiment, referring to FIG6, the first arc-extinguishing plate 411 is provided with a first arc-extinguishing groove 4111. The first arc-extinguishing groove 4111 penetrates the side of the first arc-extinguishing plate 411 opposite to the first arc-extinguishing magnet 31, so as to form a slot on the side of the first arc-extinguishing plate 411 opposite to the first arc-extinguishing magnet 31. The electric arc generated by the first stationary contact 21 and the moving contact component 10 can enter the first arc-extinguishing groove 4111 through the slot and contact the side wall and bottom wall of the first arc-extinguishing groove 4111. This increases the contact area between the electric arc and the first arc-extinguishing plate 411, thereby improving the arc-extinguishing effect.

[0107] Optionally, the shape of the first arc-extinguishing groove 4111 can be U-shaped, V-shaped, or arc-shaped, etc., and is not limited thereto.

[0108] Of course, in other embodiments, arc-shaped protrusions may also be provided on the surface of the first arc extinguishing plate 411 to increase the contact area between the electric arc and the first arc extinguishing plate 411, thereby improving the arc extinguishing effect.

[0109] Furthermore, referring to Figure 6, the first arc-extinguishing groove 4111 penetrates the surface of the first arc-extinguishing plate 411 along the second direction. This improves the arc-extinguishing effect.

[0110] When the magnetic field strength of the first arc-extinguishing magnet 31 and the second arc-extinguishing magnet 32 ​​weakens, the arc generated when the second stationary contact 22 breaks off from the moving contact component 10 may deviate from the second arc-blocking member 42. Therefore, in this embodiment, a second arc-extinguishing structure is provided on the side of the second arc-extinguishing member 42 away from the second arc-extinguishing magnet 32. The second arc-extinguishing structure is used to ignite and cut the arc generated when the second stationary contact 22 breaks off from the moving contact component 10, thereby extinguishing the arc. In this way, under the action of the second arc-extinguishing structure, the arc generated when the second stationary contact 22 breaks off from the moving contact component 10 can be attracted to the second arc-extinguishing structure and cut off, thereby achieving rapid arc extinguishing.

[0111] In this embodiment, a second arc-extinguishing structure is used for arc extinguishing. The second arc-blocking member 42 not only serves to block the arc but also supports the second arc-extinguishing structure.

[0112] It should be noted that the height of the second arc-blocking member 42 relative to the second arc-extinguishing magnet 32 ​​is not limited. Optionally, in the second direction, both ends of the second arc-blocking member 42 extend beyond the second arc-extinguishing magnet 32, which can improve the arc-blocking effect of the second arc-blocking member 42. Optionally, in the second direction, the second arc-blocking member 42 is flush with the second arc-extinguishing magnet 32.

[0113] In one embodiment, referring to Figures 5 and 6, the second arc-extinguishing structure includes a plurality of second arc-extinguishing plates 421, which are spaced apart along a second direction. Thus, by employing a segmented arrangement of multiple second arc-extinguishing plates 421, the arc can be cut and the voltage reduction can be reduced, achieving rapid arc extinguishing.

[0114] It should be noted that the spacing between two adjacent second arc-extinguishing plates 421 can be set according to the magnetic field strength. Optionally, the spacing between two adjacent second arc-extinguishing plates 421 can be greater than or equal to 1.5cm, which can improve the arc-extinguishing effect.

[0115] Optionally, the second arc-extinguishing plate 421 is an iron sheet, which has an arc-inducing function and can increase the attraction of electric arcs. Of course, in other embodiments, the second arc-extinguishing plate 421 can also be a copper sheet, and is not limited thereto.

[0116] It should be noted that the second arc-blocking component 42 can be a plastic sheet, and the second arc-extinguishing plate 421 can be injection molded as an insert. This reduces the weight of the second arc-blocking component 42 and facilitates the processing and molding of the second arc-blocking component 42 and the second arc-extinguishing plate 421. Of course, the second arc-blocking component 42 can also be a ceramic sheet.

[0117] In one embodiment, referring to Figures 6 and 7, the second arc-extinguishing plate 421 is provided with a second arc-extinguishing groove 4211. The second arc-extinguishing groove 4211 penetrates the side of the second arc-extinguishing plate 421 opposite to the second arc-extinguishing magnet 32, forming a slot on the side of the second arc-extinguishing plate 421 opposite to the second arc-extinguishing magnet 32. The electric arc generated when the second stationary contact 22 is disconnected from the moving contact component 10 can enter the second arc-extinguishing groove 4211 through the slot and contact the sidewall and bottom wall of the second arc-extinguishing groove 4211. This increases the contact area between the electric arc and the second arc-extinguishing plate 421, thereby improving the arc-extinguishing effect.

[0118] Optionally, the shape of the second arc-extinguishing groove 4211 can be U-shaped, V-shaped, or arc-shaped, etc., and is not limited thereto.

[0119] Of course, in other embodiments, arc-shaped protrusions can also be provided on the surface of the second arc extinguishing plate 421 to increase the contact area between the electric arc and the second arc extinguishing plate 421, thereby improving the arc extinguishing effect.

[0120] Furthermore, referring to Figures 6 and 7, the second arc-extinguishing groove 4211 penetrates the surface of the second arc-extinguishing plate 421 along the second direction. This improves the arc-extinguishing effect.

[0121] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0122] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0123] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0124] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0125] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0126] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0127] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay, characterized in that, include: Moving contact components; An arc-extinguishing magnet is disposed on the outer periphery of the moving contact component; And an arc-blocking component, which is disposed between the moving contact component and the arc-extinguishing magnet, and is used to prevent the electric arc from contacting the arc-extinguishing magnet.

2. The relay according to claim 1, characterized in that, In a first direction of the arc-extinguishing magnet, the arc-extinguishing magnet has a first arc-extinguishing end and a second arc-extinguishing end opposite to each other, and the arc-blocking member can cover at least one of the first arc-extinguishing end and the second arc-extinguishing end.

3. The relay according to claim 2, characterized in that, The arc-blocking member extends beyond the end face of at least one of the first arc-extinguishing end and the second arc-extinguishing end in the first direction.

4. The relay according to claim 2, characterized in that, The moving contact component has a first end and a second end opposite to each other; at least two arc-extinguishing magnets are provided, namely a first arc-extinguishing magnet and a second arc-extinguishing magnet, the first arc-extinguishing magnet being disposed corresponding to the first end and the second arc-extinguishing magnet being disposed corresponding to the second end; at least two arc-blocking members are provided, namely a first arc-blocking member and a second arc-blocking member, the first arc-blocking member being disposed between the first arc-extinguishing magnet and the moving contact component, and the second arc-blocking member being disposed between the second arc-extinguishing magnet and the moving contact component.

5. The relay according to claim 4, characterized in that, The first arc-extinguishing magnet is disposed on the side of the first end away from the second end, and the second arc-extinguishing magnet is disposed on the side of the second end away from the first end; the first arc-extinguishing end of the first arc-extinguishing magnet and the second arc-extinguishing end of the second arc-extinguishing magnet are disposed opposite to each other.

6. The relay according to claim 5, characterized in that, The first arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the first arc-extinguishing magnet in the first direction; the second arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the second arc-extinguishing magnet in the first direction; or, the first arc-blocking member is disposed within the space formed by the moving contact member and the second arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the first arc-extinguishing magnet in the first direction; the second arc-blocking member is disposed within the space formed by the moving contact member and the first arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the second arc-extinguishing magnet in the first direction.

7. The relay according to claim 5, characterized in that, Two first arc-blocking members are provided. One first arc-blocking member is located within the space formed by the moving contact member and the first arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the first arc-extinguishing magnet in the first direction. The other first arc-blocking member is located within the space formed by the moving contact member and the second arc-extinguishing end of the first arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the first arc-extinguishing magnet in the first direction. Two second arc-blocking members are provided. One second arc-blocking member is located within the space formed by the moving contact member and the first arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the first arc-extinguishing end of the second arc-extinguishing magnet in the first direction. The other second arc-blocking member is located within the space formed by the moving contact member and the second arc-extinguishing end of the second arc-extinguishing magnet, and extends beyond the end face of the second arc-extinguishing end of the second arc-extinguishing magnet in the first direction.

8. The relay according to claim 4, characterized in that, The polarity of the side of the first arc-extinguishing magnet facing the second arc-extinguishing magnet is either N or S, and the polarity of the side of the second arc-extinguishing magnet facing the first arc-extinguishing magnet is either N or S.

9. The relay according to any one of claims 2 to 8, characterized in that, The arc-blocking member extends beyond at least one of the first arc-extinguishing end and the second arc-extinguishing end to two end faces in a second direction of the arc-extinguishing magnet, wherein the first direction is perpendicular to the second direction.

10. The relay according to any one of claims 1 to 8, characterized in that, The relay also includes an insulating base and an insulating cover. The insulating cover is disposed on the insulating base and surrounds the insulating base to form a receiving cavity. The moving contact component and the arc-blocking component are both disposed inside the receiving cavity, and the arc-extinguishing magnet is disposed outside the receiving cavity.

11. The relay according to claim 10, characterized in that, The insulating cover is provided with a receiving groove, the arc-extinguishing magnet is placed in the receiving groove, and the groove wall is used to block the electric arc.

12. The relay according to claim 10, characterized in that, The relay also includes a stationary contact, which is located on the side of the insulating cover facing the insulating base, and the stationary contact can contact or separate from the moving contact component.

13. The relay according to claim 10, characterized in that, The inner wall of the insulating cover is provided with a first positioning groove, and the insulating seat is provided with a second positioning groove. The first positioning groove and the second positioning groove are arranged opposite to each other. One end of the arc-blocking member is located in the first positioning groove, and the other end of the arc-blocking member is located in the second positioning groove.

14. The relay according to any one of claims 1 to 8, characterized in that, The arc-blocking component is at least one of a ceramic sheet, an iron sheet, and a copper sheet.

15. The relay according to any one of claims 1 to 8, characterized in that, The arc-blocking member has multiple arc-extinguishing plates on the side away from the arc-extinguishing magnet, and the multiple arc-extinguishing plates are spaced apart along the second direction of the arc-extinguishing magnet.

16. The relay according to claim 15, characterized in that, The arc-extinguishing plate is provided with an arc-extinguishing groove, which penetrates the side of the arc-extinguishing plate away from the arc-extinguishing magnet to form a slot on the side of the arc-extinguishing plate away from the arc-extinguishing magnet; and / or, the arc-extinguishing groove penetrates two opposite surfaces of the arc-extinguishing plate along a second direction of the arc-extinguishing magnet.

Images