A relay

Abstract

The embodiment of the present application discloses a relay for strengthening the holding force through the opening group on the yoke and the top cover. The relay in the embodiment of the present application includes a yoke, a top cover, a static iron core, a main permanent magnet group, a secondary permanent magnet group, a first moving iron core and a second moving iron core, the top cover is provided with a first opening group, the first opening group is arranged at a position where the top cover is used to contact the first moving iron core, the first opening group includes at least one first sub-opening, the yoke is provided with a second opening group, the second opening group is arranged at a position where the yoke is used to contact the second moving iron core, and the second opening group includes at least one second sub-opening.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of circuits, and in particular to a relay. Background Art

[0002] As users become more and more dependent on data, it is increasingly important to avoid business interruptions and data packet loss in data centers. Currently, most data centers use a hybrid power supply architecture and battery backup. The hybrid power supply architecture requires the support of relays. When a power outage occurs in a data center, the data processing progress of a large number of users will stagnate. Therefore, relays are needed to achieve high-speed power switching and quickly restore power supply.

[0003] The relay switches the power state by moving the driving mechanism inside the relay, thereby driving the moving spring on the relay to contact the static spring, thereby switching the power state. The relay also needs to provide a holding force to keep the driving mechanism from moving, thereby maintaining the switching state of the power. In the relay of the prior art, the main permanent magnet is used to provide a magnetic field for the coil, and the auxiliary permanent magnet is used to provide more electromagnetic wires for the moving iron core in the open position and the closed position, thereby improving the holding force.

[0004] However, the existing relay can only rely on the main permanent magnet and the auxiliary permanent magnet to improve the holding force, and after the main permanent magnet and the auxiliary permanent magnet are provided, the structure of the relay becomes complicated, the installation is difficult, and the reliability is low. Summary of the invention

[0005] An embodiment of the present application provides a relay for providing a retaining force through a yoke and an opening on a top cover.

[0006] The coil in the relay will drive the drive mechanism to move, so that the moving reed on the relay contacts the static reed, thereby switching the power supply state of the power supply. The force that ensures that the drive mechanism is in the open position or the closed position and no longer moves is called the holding force.

[0007] A first aspect of an embodiment of the present application provides a relay, which includes an electromagnetic mechanism, which includes a yoke, a top cover, a static iron core, a main permanent magnet group and a secondary permanent magnet group, wherein the top cover, the static iron core, the main permanent magnet group and the secondary permanent magnet group can be fixedly connected to the yoke, and the relay also includes a first moving iron core and a second moving iron core, a first opening group is opened on the top cover, the first opening group is arranged at a position where the top cover is used to contact the first moving iron core, the first opening group includes at least one first sub-opening, a second opening group is opened on the yoke, the second opening group is arranged at a position where the yoke is used to contact the second moving iron core, the second opening group includes at least one second sub-opening, and the relay also includes a coil frame, a coil is arranged on the coil frame, a cavity is opened inside the coil frame, and the static iron core and the secondary permanent magnet are arranged in the cavity.

[0008] In an embodiment of the present application, by opening a second opening group on the yoke and a first opening group on the top cover, and the first opening group includes at least two sub-openings and the second opening group also includes at least two sub-openings, the magnetic flux density between the first moving iron core and the top cover is increased, and the magnetic flux density between the second moving iron core and the yoke is increased, thereby improving the holding force.

[0009] In a possible implementation, the top cover, the static iron core, the main permanent magnet and the auxiliary permanent magnet may be fixed to the yoke by riveting.

[0010] In the embodiment of the present application, the top cover, the static iron core, the main permanent magnet and the auxiliary permanent magnet are fixed to the yoke iron by riveting, so there is no need to rely on glue to fix them, thereby avoiding the generation of harmful gases that corrode the device.

[0011] In one possible implementation, the top cover includes a first contact portion and a second contact portion, the first contact portion and the second contact portion are used to contact the first moving iron core, a first sub-opening group is opened on the first contact portion, a second sub-opening group is opened on the second contact portion, the first sub-opening group includes at least one first sub-opening, the second sub-opening group includes at least one first sub-opening, and the first sub-opening group and the second sub-opening group are included in the first opening group; the yoke includes a third contact portion and a fourth contact portion, the third contact portion and the fourth contact portion are used to contact the second moving iron core, a third sub-opening group is opened on the third contact portion, a fourth sub-opening group is opened on the fourth contact portion, the third sub-opening group includes at least one second sub-opening, the fourth sub-opening group includes at least one second sub-opening, and the third sub-opening group and the fourth sub-opening group are included in the second opening group.

[0012] In a possible implementation, the main permanent magnet group includes a first main permanent magnet and a second main permanent magnet, and the auxiliary permanent magnet group includes a first auxiliary permanent magnet and a second auxiliary permanent magnet, wherein the first auxiliary permanent magnet is attached to one side of the static iron core, and the second auxiliary permanent magnet is attached to the other side of the static iron core, the first main permanent magnet is attached to the inner wall of one side of the yoke and is arranged on one side of the static iron core, and the second main permanent magnet is attached to the inner wall of the other side of the yoke and is arranged on the other side of the static iron core; the first main permanent magnet and the second main permanent magnet have the same length, and the magnetic conductivity directions of the first main permanent magnet and the second permanent magnet are opposite, the first auxiliary permanent magnet and the second auxiliary permanent magnet have the same length, and the magnetic conductivity directions of the first auxiliary permanent magnet and the second auxiliary permanent magnet are opposite, and the first main permanent magnet and the first auxiliary permanent magnet have the same magnetic conductivity direction.

[0013] In the embodiment of the present application, the main permanent magnet group and the auxiliary permanent magnet group provide a magnetic field for the electromagnetic mechanism, so no additional excitation time is required, thereby improving the response speed of the relay.

[0014] In a possible implementation manner, the length of the first main permanent magnet is greater than the length of the first secondary permanent magnet, and the length of the first secondary permanent magnet is equal to the length of the static iron core.

[0015] In the embodiment of the present application, the length of the first main permanent magnet is greater than the length of the first secondary permanent magnet, and the length of the first secondary permanent magnet is equal to the length of the static iron core, thereby increasing the effective utilization area of ​​the magnetic field.

[0016] In one possible implementation, the auxiliary permanent magnet group is arranged around the static iron core, and the main permanent magnet group is arranged around the auxiliary permanent magnet group. The target magnetic poles of the permanent magnets in the auxiliary permanent magnet group and the main permanent magnet group are facing the static iron core. The target magnetic pole can be an "S" pole or an "N" pole, and the length of the permanent magnet in the main permanent magnet group is greater than the length of the permanent magnet in the auxiliary permanent magnet group.

[0017] In the embodiment of the present application, the specific structure of the electromagnetic mechanism is defined, and the coil can be completely surrounded by the magnetic field provided by the main permanent magnet group and the auxiliary permanent magnet group, thereby improving the utilization rate of the magnetic field.

[0018] In a possible implementation, the relay also includes a driving mechanism, which includes a first moving iron core, a second moving iron core, a coil frame, a contact mounting groove and a contact guide rail, wherein the first moving iron core is arranged on one side of the coil frame, and the second moving iron core is arranged on the other side of the coil frame, and the processing method adopted by the driving mechanism is one-piece molding processing.

[0019] In the embodiment of the present application, the driving mechanism can be processed by one-piece molding, thereby reducing the assembly time of the relay and improving the transmission efficiency.

[0020] In a possible implementation, the relay also includes a first drive mechanism, a second drive mechanism and a connecting member, wherein the first drive mechanism includes a contact mounting groove, a contact guide rail and a first connecting hole, and the second drive mechanism includes a first moving iron core, a second moving iron core, a coil frame and a second connecting hole. The connecting member can be connected to the first drive mechanism and the second drive mechanism by inserting into the first connecting hole and the second connecting hole, and the first drive mechanism and the second drive mechanism are processed by one-piece molding.

[0021] Another form of the driving mechanism is defined in the embodiment of the present application, which reduces the assembly time of the relay and improves the transmission efficiency.

[0022] In a possible implementation, the relay further includes a moving reed and a stationary reed, wherein the moving reed is made of a flexible and deformable material, and the stationary reed is made of a rigid material.

[0023] In the embodiment of the present application, the material of the moving spring piece is limited to a flexible and deformable material, so the bounce of the moving contact can be reduced, and the material of the static spring piece is limited to a rigid material, so it is not easy to deform.

[0024] A second aspect of an embodiment of the present application provides a relay, which includes an electromagnetic mechanism, which includes a first permanent magnet, a second permanent magnet, a magnetic conductive material shell, an insulating container, a moving iron core, a first coil and a second coil, wherein the first coil and the second coil are fixed to the magnetic conductive material shell, the magnetic conductive directions of the first permanent magnet and the second permanent magnet are opposite, a cavity is opened inside the insulating container, and a through hole is opened at the bottom, the first permanent magnet and the second permanent magnet are arranged in the cavity, the moving iron core passes through the through hole, the bottom of the moving iron core is fixedly connected to the magnetic conductive material shell, the insulating container can move along the moving iron core, the first coil and the second coil are respectively arranged on both sides of the insulating container, the first coil, the second coil, the insulating container and the moving iron core are all arranged inside the magnetic conductive material shell, the top of the magnetic conductive material shell is opened with at least a first opening and a second opening, and the bottom of the magnetic conductive material shell is opened with at least a third opening and a fourth opening.

[0025] In the embodiment of the present application, the electromagnetic mechanism of the relay does not need to rely on the movement of the coil to achieve the switching of the working state of the relay, but instead achieves the switching of the working state of the relay through the movement of the first permanent magnet and the second permanent magnet, thereby avoiding the situation where the connecting wire of the coil is broken and the relay is damaged, thereby improving the reliability of the relay, and the number of permanent magnets required is relatively small, thereby reducing the cost of the relay.

[0026] In a possible implementation, the relay also includes a driving mechanism, which includes a first moving iron core, a second moving iron core, a magnetic material shell accommodating cavity, a contact mounting groove and a contact guide rail, wherein the first moving iron core is arranged on one side of the magnetic material shell accommodating cavity, and the second moving iron core is arranged on the other side of the magnetic material shell accommodating cavity, and the processing method adopted by the driving mechanism is one-piece molding processing.

[0027] In the embodiment of the present application, the driving mechanism can be processed by one-piece molding, thereby reducing the assembly time of the relay and improving the transmission efficiency.

[0028] In a possible implementation, the relay also includes a first drive mechanism, a second drive mechanism and a connecting piece, wherein the first drive mechanism includes a contact mounting groove, a contact guide rail and a first connecting hole, and the second drive mechanism includes a first moving iron core, a second moving iron core, a magnetic conductive material shell accommodating cavity and a second connecting hole, and the connecting piece can be connected to the first drive mechanism and the second drive mechanism by inserting into the first connecting hole and the second connecting hole, and the first drive mechanism and the second drive mechanism are processed by one-piece molding.

[0029] In the embodiment of the present application, the driving mechanism can be processed by one-piece molding, thereby reducing the assembly time of the relay and improving the transmission efficiency.

[0030] In a possible implementation, the relay further includes a moving reed and a stationary reed, wherein the moving reed is made of a flexible and deformable material, and the stationary reed is made of a rigid material.

[0031] In the embodiment of the present application, the material of the moving spring piece is limited to a flexible and deformable material, so the bounce of the moving contact can be reduced, and the material of the static spring piece is limited to a rigid material, so it is not easy to deform.

[0032] A third aspect of an embodiment of the present application provides a distribution box, which includes a drive board. The distribution box is used to set the relay of the first aspect, and the drive board is used to provide power to the coil of the relay of the first aspect.

[0033] A fourth aspect of an embodiment of the present application provides a communication device, which includes a distribution box and an electrical device as described in the third aspect above, wherein the distribution box is used to switch the power state of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a dual-power hybrid power supply scenario in an embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the structure of the electromagnetic mechanism in the embodiment of the present application;

[0036] Figure 3aThis is a schematic diagram of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0037] Figure 3b It is a schematic diagram from another perspective of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0038] Figure 3c It is a schematic diagram from another perspective of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0039] Figure 4 This is a schematic diagram of the structure of the driving mechanism in the embodiment of the present application;

[0040] Figure 5 A schematic diagram showing the structure of the driving mechanism in another embodiment of the present application from another perspective;

[0041] Figure 6 This is a schematic diagram of an assembly of a driving mechanism in an embodiment of the present application;

[0042] Figure 7 Another schematic diagram of the assembly of the driving mechanism in the embodiment of the present application;

[0043] Figure 8 This is a schematic diagram of an assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0044] Fig. 9 It is a schematic diagram from another perspective of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0045] Fig.10 It is a schematic diagram from another perspective of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application;

[0046] Fig.11 This is a schematic diagram of the principle of coil movement in an embodiment of the present application;

[0047] Fig.12 This is a schematic diagram of the electromagnetic mechanism and the driving mechanism before assembly in the embodiment of the present application;

[0048] Fig.13 This is a schematic diagram of the opening of the yoke and the top cover in the embodiment of the present application;

[0049] Fig.14 This is a schematic diagram of a first opening group at the top cover in an embodiment of the present application;

[0050] Fig.15 This is a schematic diagram of a second opening group at the yoke in an embodiment of the present application;

[0051] Fig.16 A schematic diagram of the effects of the first opening group and the second opening group on the electromagnetic wire in an embodiment of the present application;

[0052] Fig.17 A schematic diagram of the arrangement of permanent magnets in an embodiment of the present application;

[0053] Fig.18a A schematic diagram of the assembly of the moving contact assembly and the driving mechanism in the embodiment of the present application;

[0054] Fig.18b A schematic diagram showing another perspective of assembling the moving contact assembly and the driving mechanism in an embodiment of the present application;

[0055] Fig.19 This is a schematic diagram of the assembly of the moving contact assembly in the embodiment of the present application;

[0056] Fig. 20 This is a schematic diagram of the static contact assembly and the base before assembly in the embodiment of the present application;

[0057] Fig.21 This is a schematic diagram of the static contact assembly and the base after being assembled in the embodiment of the present application;

[0058] Fig. 22 This is a schematic diagram of the structure of the upper cover in the embodiment of the present application;

[0059] Fig.23 This is a schematic diagram of the overall assembly of the relay in the embodiment of the present application;

[0060] Fig.24 Schematic diagram of the structure of the flexible connecting conductor in the embodiment of the present application;

[0061] Fig.25 This is a schematic diagram of the structure of the coil pins in the embodiment of the present application;

[0062] Fig.26 Another structural schematic diagram of the electromagnetic mechanism in the embodiment of the present application;

[0063] Fig. 27 It is another structural schematic diagram of the electromagnetic mechanism in the embodiment of the present application;

[0064] Fig.28 This is a schematic diagram of the structure of the distributor in the embodiment of the present application. DETAILED DESCRIPTION

[0065] An embodiment of the present application provides a relay for increasing the speed at which the relay switches power.

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0067] The relay provided in this application can be used in dual-circuit hybrid power supply scenarios for high-security equipment such as data centers, public cloud servers, and switches. Currently, most data centers use a high-reliability hybrid power supply architecture and battery backup. The multi-backup power distribution architecture can achieve the ideal energy efficiency index of the data center. Figure 1 , Figure 1 It is a schematic diagram of a hybrid power supply scenario. Power supply A and power supply B pass through the distribution box to reach the high-speed switching switch. The high-speed switching switch can switch power supply A and power supply B according to the actual power situation, and then transmit the power of power supply A or power supply B to the load, thereby ensuring the safety and stability of the power system. The relay in the embodiment of the present application can be applied to the high-speed switching switch described in the figure. The switching time of the power supply is very important for the DC hybrid power supply architecture or the high-voltage AC hybrid power supply architecture. The length of the power supply switching time will directly affect the stable operation of the information communication equipment and directly determine the power supply continuity of the communication equipment.

[0068] The relay in the embodiment of the present application is described below:

[0069] See also Figure 2 , Figure 3a , Figure 3b as well as Figure 3c In the embodiment of the present application, the electromagnetic mechanism of the relay includes a yoke (b), a first main permanent magnet (g), a second main permanent magnet (g), a first auxiliary permanent magnet (e), a second auxiliary permanent magnet (e) and a static iron core (c). The first main permanent magnet (g) and the second main permanent magnet (g) belong to the main permanent magnet group, the first auxiliary permanent magnet (e) and the second auxiliary permanent magnet (e) belong to the auxiliary permanent magnet group, and the static iron core (c) can be an independent iron core or composed of multiple iron cores (such as in Figure 2 , Figure 3a , Figure 3b as well as Figure 3cThe first auxiliary permanent magnet (e) is attached to one side of the static iron core (c), and the second auxiliary permanent magnet (e) is attached to the other side of the static iron core (c). The first main permanent magnet (g) is arranged on one side of the static iron core (c) and is attached to the inner wall of one side of the yoke (b). The second main permanent magnet (g) is arranged on the other side of the static iron core (c) and is attached to the inner wall of the other side of the yoke (b). The first main permanent magnet (g) and the second main permanent magnet (g) are the same length. The magnetic permeability direction of the first main permanent magnet (g) is opposite to that of the second main permanent magnet (g), the length of the first secondary permanent magnet (e) is the same as that of the second secondary permanent magnet (e), the magnetic permeability direction of the first secondary permanent magnet (e) is opposite to that of the second secondary permanent magnet (e), the length of the first main permanent magnet (g) is greater than that of the first secondary permanent magnet (e), the magnetic permeability direction of the first main permanent magnet (g) is the same as that of the first secondary permanent magnet (e), and the length of the secondary permanent magnet (e) is the same as that of the static iron core (c).

[0070] It should be noted that, in actual applications, the length of the first main permanent magnet (g) may be less than or equal to the length of the first auxiliary permanent magnet (e), and the lengths of the auxiliary permanent magnet (e) and the static iron core (c) may also be different, which is not specifically limited here.

[0071] It should be noted that Figure 2 The direction pointed by the arrow "Y" is the length direction of the above-mentioned length direction permanent magnet.

[0072] See also Figure 3a , Figure 3a is the assembly diagram of the electromagnetic mechanism and the driving mechanism (q), as shown in Figure 3a As shown, the first auxiliary permanent magnet (e) and the second auxiliary permanent magnet (e) are fixed by riveting through the first boss (e1) and the notch (b2) on the yoke, and the first main permanent magnet (g) and the second main permanent magnet (g) are fixed by riveting through the second boss (g1) and the second notch (b1) on the yoke. In the embodiment of the present application, the electromagnetic mechanism also includes a top cover (f), and the first main permanent magnet (g) and the second main permanent magnet (g) can be fixed by riveting through the second boss (g1) opened on the top and the first notch (f1) on the top cover, and the coil (u) is arranged on the driving mechanism (q). Since the riveting fixing method is adopted, it is no longer necessary to use glue for bonding and fixing, thereby avoiding the generation of harmful gases that may corrode the device.

[0073] See also Figure 3b , Figure 3b Another schematic diagram of the assembly of the electromagnetic mechanism and the drive mechanism (q). In the actual assembly, the top cover (f) can be first assembled as shown in FIG. Figure 3b The position shown passes through the driving mechanism (q), and is subsequently riveted and fixed to the yoke (b), the first main permanent magnet (g) and the second main permanent magnet (g).

[0074] See also Figure 3c , Figure 3c This is another schematic diagram of the assembly of the electromagnetic mechanism and the driving mechanism (q). The first moving iron core (d) and the second moving iron core (d) can be arranged at the illustrated position of the driving mechanism (q), and the assembly method of the remaining parts will not be repeated here.

[0075] The electromagnetic mechanism of the relay in the embodiment of the present application is described above. The driving mechanism in the embodiment of the present application is described below:

[0076] See also Figure 4 The driving mechanism (q) of the relay in the embodiment of the present application includes a coil frame (a), a first moving iron core (d), a second moving iron core (d), a contact mounting groove (z) and a contact guide rail (x), please refer to Figure 5 , Figure 5 Another view of the drive mechanism is shown in Figure 5 As shown, the interior of the coil frame (a) is a cavity (v). In the drive mechanism, the coil frame (a) can be used to set the coil (u), and the cavity (v) can provide positioning for the push rod, acting as an inner guide rail and limiting the deviation of the contact guide rail side; the contact mounting groove (z) can provide installation limit for the moving contact assembly (2g), and the contact guide rail (x) can provide guidance for the contact side of the push rod.

[0077] It should be noted that in order to solve the shortcomings of the prior art relay drive mechanism having many connecting rods and low transmission efficiency, the relay drive mechanism in the embodiment of the present application can be integrated into one, thereby greatly reducing the required transmission parts. For details, please refer to Figure 6 , Figure 6 FIG. 1 is a schematic diagram of the assembly of the driving mechanism of the relay in the embodiment of the present application. Figure 6 As shown, the drive mechanism (q) can be processed using an injection mold, so that no additional assembly is required. The drive mechanism in the embodiment of the present application can be obtained by fixing the first moving iron core (d) and the second moving iron core (d) in the injection mold at positions corresponding to the mounting groove (q1), and then performing one-time injection molding. Through this processing method, the installation clearance of components can be reduced, the power transmission efficiency can be effectively improved, the system loss can be reduced, and the movement accuracy can be improved.

[0078] Alternatively, the driving mechanism may be formed as a first driving mechanism and a second driving mechanism respectively in an integrated manner, and then the first driving mechanism and the second driving mechanism are connected and fixed to obtain the driving mechanism. Figure 7 , Figure 7 FIG. 1 is another assembly diagram of the driving mechanism of the relay in the embodiment of the present application. Figure 7As shown, the driving mechanism may include a first driving mechanism (a1), a second driving mechanism (a3) ​​and a connecting member (a2). The driving mechanism can be assembled by inserting the connecting member (a2) into the second rectangular connecting hole (a31) on the second driving mechanism (a3) ​​and the first rectangular connecting hole (a11) on the first driving mechanism (a1). It should be noted that the connecting member (a2) can specifically be a pin.

[0079] The electromagnetic mechanism and the driving mechanism of the relay in the embodiment of the present application are described above respectively. The assembly relationship between the electromagnetic mechanism and the driving mechanism is described below:

[0080] See also Figure 8 , Figure 8 FIG. 1 is a schematic diagram of the assembly relationship between the electromagnetic mechanism and the driving mechanism of the relay in the embodiment of the present application. Figure 8 As shown, the top cover (f) is fixedly connected to the yoke and the driving mechanism (q), and the interior of the cavity (v) is used to arrange the static iron core (c), the first pair of permanent magnets (e) and the second pair of permanent magnets (e);

[0081] See also Fig. 9 , Fig. 9 FIG. 1 is another perspective diagram of the assembly of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application. Fig. 9 As shown, the coil frame (a) can be used to entangle the coil (u). After the coil (u) is energized, it moves under the action of the magnetic field generated by the first main permanent magnet (g), the second main permanent magnet (g), the first secondary permanent magnet (e) and the second secondary permanent magnet (e). The movement of the coil (u) can drive the movement of the driving mechanism (q). When the first moving iron core (d) is in contact with the top cover (f), the first secondary permanent magnet (e), the first moving iron core (d), the top cover (f) and the first main permanent magnet (g) cooperate to provide a holding force at position (1). When the second moving iron core (d) is in contact with the yoke (b), the yoke (b), the second secondary permanent magnet (e), the first moving iron core (d) and the second main permanent magnet (g) cooperate to provide a holding force at position (2).

[0082] See also Fig.10 , Fig.10 This is a schematic diagram of another perspective of the electromagnetic mechanism and the driving mechanism in the embodiment of the present application. The specific position relationship is the same as above. Fig. 9 The same as shown is not repeated here.

[0083] For more details, please refer to the principle of the movement of the coil (u) on the coil frame (a). Fig.11 ,like Fig.11 As shown, the coil is Fig.11The current-carrying wire in the coil changes the direction of the current in the coil under the action of the magnetic field provided by the permanent magnet, which can change the up and down movement of the coil (u) on the coil frame (a), and during the entire movement process, the main motion air gap remains unchanged, which can provide stable electromagnetic output, with the characteristics of long motion stroke and stable output.

[0084] See also Fig.12 , Fig.12 This is a schematic diagram of the electromagnetic mechanism and the driving mechanism before assembly in the embodiment of the present application. The assembly of the electromagnetic mechanism and the driving mechanism (q) can be to first fix the top cover (f) and the driving mechanism (q), then push the driving mechanism (q) into the electromagnetic mechanism, and finally rivet the top cover (f) and the yoke (b) to fix them.

[0085] It should be noted that the electromagnetic mechanism of the relay in the embodiment of the present application can also adjust the holding force through the top cover (f) and the yoke (b). Specifically, as the direction of the current in the coil (u) changes, the movement of the drive mechanism (q) causes the first moving iron core (d) to fit with the top cover (f), or causes the second moving iron core (d) to fit with the yoke (b). Please refer to Figure 3a , Figure 3b , Figure 3c as well as Fig.13 , a first opening group (h) is provided on the top cover (f), and a second opening group (i) is provided on the yoke (b), wherein the first opening group (h) includes a first sub-opening group (h1) and a second sub-opening group (h2), the first sub-opening group is located on the first contact portion (T1-1) of the top cover (f) for contacting the first moving iron core (d1), and the second sub-opening group is located on the second contact portion (T1-2) of the top cover (f) for contacting the first moving iron core (d1); correspondingly, the first moving iron core (d1) also has two corresponding contact portions (t1-1 and t1-2) for contacting the first contact portion (T1-1) and the second contact portion (T1-2), respectively. It should be noted that, Figure 3c The contact portion indicated by the dashed box in the figure is a rough illustration, and those skilled in the art can determine the actual contact portion by combining the relationship and size of the components in the figure. Each sub-opening group may include one or more openings, for example, Fig.13 Each sub-opening group (h1, h2) includes a first sub-opening. The number of sub-opening groups may correspond to the number of contact portions on the first moving iron core (d1). Figure 3c as well as Fig.13 In the embodiment, since the first moving iron core (d1) has only two side contact portions (t1-1 and t1-2), only two sub-opening groups can be provided. Of course, only one sub-opening group can also be provided. The first sub-opening group (h1) or the second sub-opening group (h2) can include one or more first sub-openings. Fig.13In the embodiment, each sub-opening group includes only one first sub-opening.

[0086] The second opening group (i) includes a third sub-opening group (i1) and a fourth sub-opening group (i2), the third sub-opening group (i1) is located on the third contact portion (T2-1) of the yoke (b) for contacting the second moving iron core (d2), and the fourth sub-opening group (i2) is located on the fourth contact portion (T2-2) of the yoke (b) for contacting the second moving iron core (d2); correspondingly, the second moving iron core (d2) also has two corresponding contact portions (t2-1 and t2-2) for contacting the third contact portion (T2-1) and the fourth contact portion (T2-2) respectively. It should be noted that, Figure 3c The contact portion marked by the dashed box in the figure is a rough illustration. A person skilled in the art can determine the actual contact portion by combining the relationship and size of the components in the figure. At the same time, since the third contact portion (T2-1) and the fourth contact portion (T2-2) are Figure 3c , which is blocked by the yoke (b), can be seen by those skilled in the art in combination with other figures (such as Figure 3a ) to understand the specific positions of the third contact portion and the fourth contact portion. Each sub-opening group may include one or more openings, for example, Fig.13 In the embodiment, each sub-opening group (i1, i2) includes a second sub-opening. The number of sub-opening groups may correspond to the number of contact portions. Figure 3c as well as Fig.13 In the embodiment, since the second moving iron core (d2) has only two side contact portions (t2-1 and t2-2), only two sub-opening groups can be provided on the yoke (b), and of course, only one sub-opening group can be provided. The third sub-opening group (i1) or the fourth sub-opening group (i2) can include one or more second sub-openings. Fig.13 In the embodiment, each sub-opening group includes only one second sub-opening.

[0087] It should be noted that the principle of holding force adjustment is to adjust the holding force by changing the parallel magnetic resistance. Fig.14 , Fig.14 Schematic diagram of the retention force adjustment hole at the top cover (f), as shown Fig.14 As shown, the first moving iron core (d) is fitted with the top cover (f), and the magnetic resistance of the top cover is increased by increasing the size of the first opening group (h) of the top cover (f). The magnetic flux moves from the first opening group (h) of the top cover (f) to the first moving iron core (d), which is equivalent to increasing the magnetic flux passing through the first moving iron core (d), thereby improving the holding force; please refer to Fig.15 , Fig.15 Schematic diagram of the retaining force adjustment hole at the yoke (b), as shown in Fig.15As shown, the second moving iron core (d) is fitted with the yoke (b), and the size of the second opening group (i) on the yoke (b) is increased, thereby increasing the magnetic resistance of the yoke (b). The magnetic flux moves from the second opening group (i) to the second moving iron core (d), which is equivalent to increasing the magnetic flux passing through the second moving iron core (d), thereby increasing the holding force.

[0088] See also Fig.16 , Fig.16 The left side is a cross-sectional view of the top cover (f) with the first opening group (h) and the yoke (b) with the second opening group (i). Fig.16 The right side of is a cross-sectional view of the top cover (f) without the first opening group (h) and the yoke (b) without the second opening group (i), as shown in FIG. Fig.16 As shown, in Fig.16 The electromagnetic wire on the left side of the yoke (b), through the first moving iron core (d) and the second moving iron core (d), and finally back to the yoke (b) is shorter than Fig.16 The right side of the yoke iron (b) has an obvious increase, and these electromagnetic wires provide a holding force for the first moving iron core (d) and the second moving iron core (d). However, in the right figure, the electromagnetic wires passing through the yoke iron (b) hardly flow through the first moving iron core (d) and the second moving iron core (d), so the holding force provided is insufficient.

[0089] Furthermore, in the embodiment of the present application, the holding force can be adjusted by adjusting the sizes of the first opening group (h) and the second opening group (i).

[0090] The following is a description of the arrangement of permanent magnets in the embodiments of the present application:

[0091] See also Fig.17 , Fig.17 A schematic diagram of the arrangement of permanent magnets in the embodiment of the present application, as shown in the figure, the direction from the top to the bottom of the figure is the length direction, the length of the first main permanent magnet (g) and the second main permanent magnet (g) is larger than the length of the first secondary permanent magnet (e) and the second secondary permanent magnet (e), and is divided into left and right sides with the static iron core (c) as the center, and the current flow direction in the coil (u) on different sides is opposite, the first main permanent magnet (g), the second main permanent magnet (g), the first secondary permanent magnet (e) and the second secondary permanent magnet (e) are responsible for providing the magnetic field, and the use of this permanent magnet arrangement can additionally increase the magnetic field coverage area, and the shaded part in the figure is the increased magnetic field coverage area, and it should be noted that the shaded part in the figure is only marked with a quarter. The current in the coil (u) in the figure can be used more efficiently, and under the combined effect of the additionally increased magnetic field and the coil (u), the overall flow direction of the current in the coil is perpendicular to the magnetic field, reducing the possibility of eccentricity.

[0092] The moving contact assembly in the embodiment of the present application is described below:

[0093] See also Fig.18a , Fig.18a The middle moving contact assembly (2g) is fixedly connected to the driving mechanism (q) through the contact mounting groove (z). Fig.18a The figure also shows the assembly relationship between the coil (u) and the driving mechanism (q). The assembly is completed by installing the coil (u) to the coil frame (a) on the driving mechanism (q).

[0094] See also Fig.18b , Fig.18b The present invention is a schematic diagram of another perspective of assembling the moving contact assembly (2g) and the driving mechanism (q). As shown in the figure, the moving spring (2g2) is assembled in the moving contact assembly (2g). The moving spring (2g2) adopts a split design and relies on gas insulation to ensure the reliability of the electrical gap.

[0095] The moving contact assembly (2g) of the relay in the embodiment of the present application is described below:

[0096] See also Fig.19 In the embodiment of the present application, the moving contact assembly (2g) includes an adjustment block (2g1), a moving spring sheet (2g2), a spring plate support (2g3) and an intermediate bracket (2g4), wherein waist-round bosses (2gb) are provided on both sides of the intermediate bracket (2g4), and waist-round holes (2ga) are provided on the adjustment block (2g1), the moving spring sheet (2g2) and the spring plate support (2g3) for positioning. The specific assembly method can be that each part is assembled according to Fig.19 The positions shown in the figure are connected in sequence by means of a waisted round boss (2gb) and a waisted round hole (2ga). It should be noted that the movable spring piece (2g2) in the embodiment of the present application can be made of a flexible deformable material to reduce bounce, and the movable spring piece (2g2) is connected to a spring plate support (2g3), which further reduces bounce.

[0097] The static contact assembly of the relay in the embodiment of the present application is described below:

[0098] See also Fig. 20 , Fig. 20The present invention is a schematic diagram of the assembly of the static contact assembly and the base in the embodiment of the present application. As shown in the figure, the static contact assembly in the embodiment of the present application includes a static spring sheet (1g), a coil pin spring sheet (1e) and an arc-blowing permanent magnet (2f), wherein a static contact (1ga) is riveted on the static spring sheet (1g), the static spring sheet is fixed in a first notch (3b) on the base (3) by plugging, the coil pin spring sheet (1e) is fixed in a second notch (3c) on the base (3) by plugging, and the arc-blowing permanent magnet (2f) is fixed in a third notch (3a) on the base (3) by plugging, so as to achieve rapid arc extinguishing. It should be noted that the static spring sheet (1g) in the embodiment of the present application is made of rigid material and is not easily deformed.

[0099] Fig.21 FIG. 1 is another perspective diagram of the assembly of the static contact assembly and the base in the embodiment of the present application. The specific assembly method is similar to FIG. Fig. 20 The assembly method described is consistent and will not be repeated here.

[0100] It should be noted that, in the embodiment of the present application, the moving contact assembly and the stationary contact assembly may be a group, or may be multiple groups, which is not specifically limited here.

[0101] See also Fig. 22 In the embodiment of the present application, the relay further comprises an upper cover (5) and an electric shock system component (4a), and a plastic grid is provided on the electric shock system component (4a) for rapid arc extinguishing.

[0102] See also Fig.23 In the embodiment of the present application, the relay further comprises a buckle (2e). After the electromagnetic mechanism and the drive mechanism are assembled, they can serve as an integrated drive mechanism (4). The relay can be assembled by first inserting the integrated drive mechanism (4) into the base (3), and then connecting the contact guide rail (x) on the integrated drive mechanism (4) and the base (3) through the buckle (2e). The buckle (2e) can not only connect and fix the integrated drive mechanism (4) and the base (3), but also provide a guiding function for the integrated drive mechanism (4). Please refer to Fig.24 , the soft connecting conductor (2w) can realize the transmission of current on the coil (u); finally, close the upper cover (5), please refer to Fig.25 After the relay is assembled, the coil pins (2y) will be drawn out from the bottom of the base (3).

[0103] In the embodiment of the present application, the movement of the coil (u) at position (1) or position (2) on the coil frame (a) can further drive the integrated drive mechanism (4) to move axially along the contact guide rail (x) on the base (3), thereby achieving contact between the moving spring piece (2g2) and the static spring piece (1g), thereby realizing the switching of power supply.

[0104] In the embodiment of the present application, the holding force can be enhanced by the first opening (h) on the top cover (f) and the second opening (i) on the yoke (b), and the size of the holding force can be adjusted by adjusting the size of the first opening (h) and the second opening (i). In the embodiment of the present application, the permanent magnet provides a magnetic field, so no additional excitation time is required, and because the movement of the coil (u) is up and down along the coil frame (a), the switching time between the open position and the closed position can be greatly shortened, thereby realizing high-speed switching of the relay to the power supply.

[0105] See also Fig.26 In an embodiment of the present application, another form of an electromagnetic mechanism in a relay is provided. As shown in the figure, the electromagnetic mechanism includes a static iron core (2c), a first main permanent magnet (2z), a second main permanent magnet (2z), a third main permanent magnet (2z), a fourth main permanent magnet (2z), a first auxiliary permanent magnet (2v), a second auxiliary permanent magnet (2v) and a third auxiliary permanent magnet (2v), wherein the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z) and the fourth main permanent magnet (2z) belong to the main permanent magnet The first auxiliary permanent magnet (2v), the second auxiliary permanent magnet (2v) and the third auxiliary permanent magnet (2v) belong to the auxiliary permanent magnet group. The electromagnetic mechanism also includes a yoke (b) and a top cover (f). The static iron core (2c), the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z), the fourth main permanent magnet (2z), the first auxiliary permanent magnet (2v), the second auxiliary permanent magnet (2v), the third auxiliary permanent magnet (2v) and the top cover (f) are riveted to the yoke (b). The specific riveting method is the same as that described above. Figure 3a to Figure 3c The riveting method shown is similar and will not be described in detail here.

[0106] like Fig.26As shown, the first auxiliary permanent magnet (2v), the second auxiliary permanent magnet (2v) and the third auxiliary permanent magnet (2v) are arranged around the static iron core (2c), the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z) and the fourth main permanent magnet (2z) are arranged around the first auxiliary permanent magnet (2v), the second auxiliary permanent magnet (2v) and the third auxiliary permanent magnet (2v), and the lengths of the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z) and the fourth main permanent magnet (2z) are equal, and the lengths of the first auxiliary permanent magnet (2v), the second auxiliary permanent magnet (2v) and the third auxiliary permanent magnet (2v) are equal. The length of the first main permanent magnet (2z) is greater than the length of the first secondary permanent magnet (2v); the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z) and the fourth main permanent magnet (2z) are arranged perpendicular to each other; the "S" and "N" shown in the figure are the magnetic poles of the permanent magnets; the "N" poles of all the permanent magnets in the figure face the static iron core (2C); by adopting such an electromagnetic mechanism structure, the coil (u) can be completely surrounded by the magnetic field provided by the permanent magnet, thereby improving the utilization efficiency of the magnetic field to a greater extent, completely eliminating the contact between the coil (u) and other parts of the relay, and improving the service life and reliability of the electromagnetic mechanism.

[0107] It should be noted that the direction pointed by the arrow "Y" in the figure is the length direction of the permanent magnet.

[0108] It should be noted that, in actual applications, the main permanent magnet in the electromagnetic mechanism may not include the first main permanent magnet (2z), the second main permanent magnet (2z), the third main permanent magnet (2z) and the fourth main permanent magnet (2z), and may also be other numbers of main permanent magnets, or permanent magnets of other shapes, such as circular permanent magnets, as long as the magnetic field provided by them can completely surround the coil (u), without specific limitation; the auxiliary permanent magnet may also be in other forms, for example, a square auxiliary permanent magnet may be used, as long as the auxiliary permanent magnet can completely surround the static iron core (2c); the coil (u) may also be a circular coil or a square coil, without specific limitation here.

[0109] Specifically, the assembly of the electromagnetic mechanism and other components of the relay is similar to that of the previously shown embodiment, and will not be repeated here.

[0110] The present application also provides another relay, which includes an electromagnetic mechanism. Fig. 27As shown in the figure, the electromagnetic mechanism comprises a first permanent magnet (3z), a second permanent magnet (3z), a magnetic conductive material shell (2k), an insulating container (2j), a moving iron core (3d), a first coil (3u) and a second coil (3u), wherein the magnetic conductive direction of the first permanent magnet (3z) is opposite to the magnetic conductive direction of the second permanent magnet (3z), a cavity is provided inside the insulating container (2j), the first permanent magnet (3z) and the second permanent magnet (3z) are arranged in the cavity provided inside the insulating container (2j), a through hole is provided at the bottom of the insulating container (2j), the moving iron core (3d) passes through the through hole, and the bottom of the moving iron core (3d) is fixedly connected to the magnetic conductive material shell (2k), the first coil (3u) and the second coil (3u) are provided on both sides of the insulating container (2j), and the first coil (3 u), the second coil (3u) and the insulating container (2j) are all arranged in a magnetic conductive material shell (2k); the top of the magnetic conductive material shell (2k) is provided with at least a first opening and a second opening; the bottom of the magnetic conductive material shell (2k) is provided with at least a third opening and a fourth opening; the moving iron core (3d) can provide a magnetic circuit for the first permanent magnet (3z) and the second permanent magnet (3z); the first permanent magnet (3z) and the second permanent magnet (3z) can drive the insulating container (2j) to move up and down in the magnetic conductive material shell (2k) along the moving iron core under the action of the first coil (3u) and the second coil (3u); the insulating container (2j) can provide a buffer for the first permanent magnet (3z) and the second permanent magnet (3z) to prevent the first permanent magnet (3z) and the second permanent magnet (3z) from being broken or losing magnetism.

[0111] The driving mechanism of the relay is not provided with a coil. Apart from this, the driving mechanism of the relay and the assembly relationship between the driving mechanism and the electromagnetic mechanism are the same as those described above. Figure 3a to Figure 3c The corresponding embodiments are similar and will not be described again here.

[0112] The electromagnetic mechanism provided in the embodiment of the present application does not require the coil to move, thereby avoiding the copper wire on the coil from breaking, thereby greatly improving the reliability of the mechanism.

[0113] The present application also provides a power distribution box, which is used to set the relay described in the present application. Fig.28The distribution box includes a structure (X), a drive board (Z), a power board (Y), an input power connector (A), an input voltage connector (B) and an input voltage connector (C), wherein the relay can be fixedly installed on the structure (X), the drive board (Z) is used to provide power to the coil (u) in the relay, and by changing the direction of the current in the coil (u), the relay can be switched between the open position and the closed position. The power board (Y) is connected to the main circuit of the relay, the input power connector (A) is used to provide input power to the relay, and the input voltage connector (C) is used to provide input voltage to the relay.

[0114] An embodiment of the present application also provides a communication device, which includes the above-mentioned distribution box and power-consuming equipment, wherein the power-consuming equipment can be a switch, a router, and a server, or can also be other power-consuming equipment, which is not specifically limited here. The distribution box can be used to switch the power state of the power-consuming equipment.

Claims

1. A relay, characterized in that: The relay comprises an electromagnetic mechanism, wherein the electromagnetic mechanism comprises a yoke, a top cover, a static iron core, a main permanent magnet group and a secondary permanent magnet group, and the relay further comprises a first moving iron core and a second moving iron core; The static iron core, the top cover, the main permanent magnet group and the auxiliary permanent magnet group are fixedly connected to the yoke; The top cover is provided with a first opening group, the first opening group is arranged at a position of the top cover for contacting with the first moving iron core, and the first opening group includes at least one first sub-opening; The yoke is provided with a second opening group, the second opening group is arranged at a position where the yoke is used to contact the second moving iron core, and the second opening group includes at least one second sub-opening; The relay further comprises a coil frame, on which a coil is arranged, a cavity is opened inside the coil frame, and the static iron core and the auxiliary permanent magnet group are arranged in the cavity.

2. The relay according to claim 1, characterized in that: The fixed connection is riveting.

3. The relay according to claim 1 or 2, characterized in that: The top cover includes a first contact portion and a second contact portion, the first contact portion and the second contact portion are used to contact the first moving iron core, a first sub-opening group is formed on the first contact portion, a second sub-opening group is formed on the second contact portion, the first sub-opening group includes at least one first sub-opening, the second sub-opening group includes at least one first sub-opening, and the first sub-opening group and the second sub-opening group are included in the first opening group; The yoke includes a third contact portion and a fourth contact portion, and the third contact portion and the fourth contact portion are used to contact the second moving iron core. A third sub-opening group is opened on the third contact portion, and a fourth sub-opening group is opened on the fourth contact portion. The third sub-opening group includes at least one of the second sub-openings, and the fourth sub-opening group includes at least one of the second sub-openings. The third sub-opening group and the fourth sub-opening group are included in the second opening group.

4. The relay according to claim 1 or 2, characterized in that: The main permanent magnet group includes a first main permanent magnet and a second main permanent magnet, the auxiliary permanent magnet group includes a first auxiliary permanent magnet and a second auxiliary permanent magnet, the first auxiliary permanent magnet is attached to one side of the static iron core, the second auxiliary permanent magnet is attached to the other side of the static iron core, the first main permanent magnet is attached to the inner wall of one side of the yoke, the first main permanent magnet is arranged on one side of the static iron core, the second main permanent magnet is attached to the inner wall of the other side of the yoke, and the second main permanent magnet is arranged on the other side of the static iron core; The first main permanent magnet has the same length as the second main permanent magnet, and the magnetic conduction directions of the first main permanent magnet and the second main permanent magnet are opposite, the first auxiliary permanent magnet has the same length as the second auxiliary permanent magnet, and the magnetic conduction directions of the first auxiliary permanent magnet and the second auxiliary permanent magnet are opposite, and the first main permanent magnet and the first auxiliary permanent magnet have the same magnetic conduction directions.

5. The relay according to claim 4, characterized in that: The length of the first main permanent magnet is greater than the length of the first auxiliary permanent magnet, and the length of the first auxiliary permanent magnet is equal to that of the static iron core.

6. The relay according to claim 3, characterized in that: The auxiliary permanent magnet group is disposed around the static iron core, the main permanent magnet group is disposed around the auxiliary permanent magnet group, the target magnetic poles of the auxiliary permanent magnet group and the main permanent magnet group face the static iron core, and the target magnetic pole is an S pole or an N pole; The length of the permanent magnets in the main permanent magnet group is greater than the length of the permanent magnets in the auxiliary permanent magnet group.

7. The relay according to claim 5 or 6, characterized in that: The relay also includes a driving mechanism, which includes the first moving iron core, the second moving iron core, the coil frame, a contact mounting groove and a contact guide rail. The first moving iron core is arranged on one side of the coil frame, and the second moving iron core is arranged on the other side of the coil frame. The driving mechanism is integrally formed.

8. The relay according to claim 5 or 6, characterized in that: The relay further includes a first driving mechanism, a second driving mechanism and a connecting member, the first driving mechanism includes a contact mounting groove, a contact guide rail and a first connecting hole, the second driving mechanism includes the first moving iron core, the second moving iron core, the coil frame and a second connecting hole, and the connecting member is inserted into the first connecting hole and the second connecting hole and is fixedly connected to the first driving mechanism and the second driving mechanism; The first driving mechanism and the second driving mechanism are integrally formed.

9. The relay according to claim 7, characterized in that: The relay further comprises a moving reed and a stationary reed, wherein the moving reed is made of a flexible and deformable material, and the stationary reed is made of a rigid material.

10. The relay according to claim 8, characterized in that: The relay further comprises a moving reed and a stationary reed, wherein the moving reed is made of a flexible and deformable material, and the stationary reed is made of a rigid material.

11. A distribution box, characterized in that: The power distribution box comprises a driving board, and is used to set the relay according to any one of claims 1 to 10, and the driving board is used to provide power to the coil.

12. A communication device, characterized in that: It comprises a power distribution box as claimed in claim 11 and an electrical device, wherein the power distribution box is used to switch the power state of the electrical device.

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