High-stability multi-connector relay

Abstract

A high-stability multi-connector relay comprises a base, a coil assembly, a magnetic steel assembly, a movable spring assembly and a static spring assembly. The base comprises a coil mounting groove, a baffle plate assembly, a movable spring accommodating part and a static spring slot; the coil assembly comprises a coil framework, a coil, a first yoke, a second yoke and a third yoke. The magnetic steel assembly comprises a permanent magnet, a first magnet yoke piece, a second magnet yoke piece, a third magnet yoke piece and a fourth magnet yoke piece. The movable spring assembly comprises a frame, a movable contact frame and a movable contact. The static spring assembly comprises a static reed and a static contact. The magnetic steel assembly is directly connected with the movable spring assembly, so that the loss in force transmission is reduced. And the guide rods are matched with the guide grooves, so that contact between only part of contacts caused by inclination of the frame is avoided. And the elastic piece is arranged, so that an abutting force can be continuously provided when the movable contact is in contact with the static contact, and the stability when the relay is switched on is improved.

Description

Technical Field

[0001] This utility model relates to the field of magnetic latching relay technology, and in particular to a highly stable multi-connector relay. Background Technology

[0002] Multiphase magnetic latching relays typically consist of a base, a magnetic circuit, a contact section, and a pusher. The magnetic circuit and contact sections are housed in the base. Taking a five-phase magnetic latching relay as an example, the contact section comprises five sets of moving and stationary spring components, with the moving and stationary contacts of each set in a mutually engaging position. The pusher connects the magnetic circuit and the moving spring components of the contact section. When the magnetic circuit operates, the armature component moves, causing the pusher to reciprocate, which in turn actuates the moving spring of the moving spring component, causing the moving contact of the moving spring component to contact or separate from the stationary contact of the stationary spring component. When the contacts are in contact, due to the large number of contacts, the magnet requires greater force to push, potentially leading to insufficient pushing force. Furthermore, the contact is prone to arcing and explosions, causing contact separation, resulting in defects such as poor or unstable contact.

[0003] Patent application number 201821243612.3 discloses a multi-channel combined magnetic latching relay structure, which includes multiple magnetic latching relays, a first connecting piece, a second connecting piece, a third connecting piece, rivets, a manganese copper current sampling piece, a relay coil control line, a voltage detection line, and a current detection line. The magnetic latching relay is a flat rectangular parallelepiped with a groove on its upper side. The first connecting piece is a right-angle bent metal sheet with a rivet groove at one end and a downward protrusion at the other end. The downward protrusion of the first connecting piece engages with the groove of the magnetic latching relay. The second connecting piece is also right-angle bent, with one end connected to one end of the first connecting piece. The third connecting piece is a rectangular metal sheet with multiple equidistant rivet grooves, and the third connecting piece is connected to the rivet grooves of the first connecting piece by rivets.

[0004] The above solution avoids the drawback of insufficient magnetic thrust caused by arc explosion due to contact between multiple arcs by connecting multiple relays in series and controlling their switches separately. However, it is also more expensive, and the stability of controlling the switches separately by multiple relays is low. It is easy for individual relays to have poor contact, which may lead to the need for overall maintenance of all relays. Summary of the Invention

[0005] In view of this, the present invention provides a highly stable multi-connector relay to solve the above-mentioned technical problems.

[0006] A high-stability multi-connector relay includes a base, a coil assembly disposed in the base, a magnet assembly disposed on one side of the coil assembly, a moving spring assembly disposed on the magnet assembly, and a plurality of stationary spring assemblies fixedly disposed on the side wall of the base. The base includes a coil mounting slot, a baffle assembly disposed on one side of the coil mounting slot, a moving spring receiving portion disposed on the side of the baffle assembly away from the coil mounting slot, and a plurality of stationary spring slots disposed on the side wall of the base. The baffle assembly includes two first and second supports respectively disposed on opposite sides of the coil mounting slot, a guide groove disposed between the first and second supports, a first baffle disposed on the side of the first support away from the coil mounting slot, a second baffle disposed on the side of the second support near the coil mounting slot, and a third baffle disposed on the side of the second support away from the coil mounting slot. The coil assembly includes a coil frame disposed in the coil mounting slot, a set of coils wound on the coil frame, a first yoke disposed at one end of the coil frame, and two second and third yokes disposed at the other end of the coil frame. The magnet assembly includes a permanent magnet, two first and second yoke plates disposed on the end face of the permanent magnet facing the first support post, and two third and fourth yoke plates disposed on the end face of the permanent magnet facing the second support post. The moving spring assembly includes a frame fixedly mounted on the permanent magnet, multiple moving contact frames fixedly mounted on the frame, and multiple moving contacts disposed on the moving contact frames. Each stationary spring assembly includes two stationary spring plates inserted into stationary spring slots, and at least one stationary contact disposed on the stationary spring plates.

[0007] Furthermore, the base is provided with a guide groove on each side of the baffle assembly.

[0008] Furthermore, a long strip-shaped guide slider is provided on each of the two end faces of the permanent magnet facing and away from the guide groove.

[0009] Furthermore, the guide slider is slidably disposed in the guide groove.

[0010] Furthermore, a guide rod is provided on the frame corresponding to the positions of the two guide slots.

[0011] Furthermore, at least two elastic elements are provided at the positions corresponding to the two abutment grooves of the frame.

[0012] Furthermore, the stationary contact is configured to correspond to the moving contact.

[0013] Compared with existing technologies, this utility model provides a highly stable multi-connector relay by directly connecting the magnet assembly and the moving spring assembly, allowing the force of the magnet assembly to directly act on the moving spring assembly, reducing losses in force transmission. Two guide rods are provided at both ends of the frame, cooperating with the guide groove, to guide the movement direction of the frame and prevent tilting that would result in only partial contact between the contacts. At least one elastic element is provided between the frame and the abutment groove to assist the magnet assembly in pushing the moving spring assembly, increasing the thrust. This ensures that a continuous abutment force is provided when the moving contact contacts the stationary contact, significantly improving the stability of the relay when it is switched on. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-stability multi-connector relay provided by this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the internal structure of a highly stable multi-connector relay.

[0016] Figure 3 for Figure 1 A schematic diagram of the base structure of a highly stable multi-connector relay.

[0017] Figure 4 for Figure 2 A schematic diagram of the assembly structure. Detailed Implementation

[0018] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0019] like Figures 1 to 4 The diagram shown illustrates the structure of a high-stability multi-connector relay provided by this invention. The high-stability multi-connector relay includes a base 10, a coil assembly 20 disposed within the base 10, a magnet assembly 30 disposed on one side of the coil assembly 20, a moving spring assembly 40 disposed on the magnet assembly 30, and multiple stationary spring assemblies 50 fixedly disposed on the side wall of the base 10. It is conceivable that the high-stability multi-connector relay also includes other functional structures, such as arc-extinguishing plates, terminals, etc., which are well-known to those skilled in the art and will not be described in detail here.

[0020] The base 10 includes a coil mounting groove 11, a baffle assembly 12 disposed on one side of the coil mounting groove 11, two abutment grooves 13 disposed on both sides of the baffle assembly 12, a moving spring receiving portion 14 disposed on the side of the baffle assembly 12 away from the coil mounting groove 11, and a plurality of stationary spring slots 15 disposed on the side wall of the base 10.

[0021] The coil mounting slot 11 is used to fix the coil assembly 20, the baffle assembly 12 is used in conjunction with the magnet assembly 30, the moving spring receiving part 14 is used to receive and provide moving space for the moving spring assembly 40, and the stationary spring slot 15 is used to set the stationary spring assembly 50.

[0022] The baffle assembly 12 can also be further used for the installation and fixation of the coil assembly 20. The baffle assembly 12 includes two first support columns 121 and second support columns 122 respectively disposed on both sides of the coil mounting groove 11, a guide groove 123 disposed between the first support column 121 and the second support column 122, a first baffle 124 disposed on the side of the first support column 121 away from the coil mounting groove 11, a second baffle 125 disposed on the side of the second support column 122 close to the coil mounting groove 11, and a third baffle 126 disposed on the side of the second support column 122 away from the coil mounting groove 11.

[0023] Please see Figure 4 The first support 121 and the first baffle 124 are located on one side of the coil mounting groove 11, and the second support 122, the second baffle 125 and the third baffle 126 are located on the other side of the coil mounting groove 11, thereby fixing the two ends of the coil assembly 20. The following will describe the combination of the coil assembly 20.

[0024] The base 10 is provided with a guide groove 16 on each side of the baffle assembly 12, which is used to cooperate with the moving spring assembly 40. The following will describe the moving spring assembly 40.

[0025] The coil assembly 20 includes a coil frame 21 disposed in the coil mounting slot 11, a set of coils 22 wound on the coil frame 21, a first yoke 23 disposed at one end of the coil frame 21, and two second yokes 24 and a third yoke 25 disposed at the other end of the coil frame 21. (See also...) Figure 2One end of the first yoke 23 is clamped between the first baffle 124 and the first support column 121, and the second yoke 24 and the third yoke 25 are respectively clamped between the second support column 122 and the second baffle 125 and the third baffle 126, thereby completely fixing the coil assembly 20 in the base 10.

[0026] When the coil 22 is energized, it generates N poles and S poles at both ends of the coil frame 21, and magnetizes the first yoke 23, the second yoke 24, and the third yoke 25 to generate magnetism, thereby interacting with the magnet assembly 30 to drive the magnet assembly 30 to slide.

[0027] The magnet assembly 30 includes a permanent magnet 31, two first magnetic yoke plates 32 and 33 disposed on the end face of the permanent magnet 31 facing the first support column 121, and two third magnetic yoke plates 34 and 35 disposed on the end face of the permanent magnet 31 facing the second support column 122.

[0028] The permanent magnet 31 is magnetic, with one side being the N pole and the other side being the S pole. Furthermore, two or more permanent magnets 31 with different pole orientations can be designed according to requirements. In this embodiment, the side of the permanent magnet 31 closest to the moving spring assembly 40 is the N pole, and the other side is the S pole. Therefore, the magnetic poles of the second magnetic yoke 33 and the fourth magnetic yoke 35 are N poles, and the magnetic poles of the first magnetic yoke 32 and the third magnetic yoke 34 are S poles.

[0029] On the two end faces of the permanent magnet 31 facing and away from the guide groove 123, there is a long strip-shaped guide slider 36. One guide slider 36 is slidably disposed in the guide groove 123, and the other guide slider 36 is slidably disposed on the corresponding structure of the cover plate 1, thereby preventing the permanent magnet 31 from rotating during sliding and keeping the permanent magnet 31 in a translational state during sliding.

[0030] The first magnetic yoke 32 and the second magnetic yoke 33 are respectively placed on both sides of the first baffle 124, and the third magnetic yoke 34 and the fourth magnetic yoke 35 are accommodated between the second baffle 125 and the third baffle 126. When the first magnetic yoke 32 abuts against the first baffle 124, the fourth magnetic yoke 35 abuts against the second baffle 125. When the second magnetic yoke 33 abuts against the first baffle 124, the third magnetic yoke 34 abuts against the third baffle 126, so that when the permanent magnet 31 slides to the end, the two ends of the permanent magnet 31 always remain in abutting state, avoiding the influence of the magnetic field generated by the coil assembly 20, which would cause it to rotate or shift.

[0031] The moving spring assembly 40 includes a frame 41 fixedly mounted on the permanent magnet 31, a plurality of moving contact frames 42 fixedly mounted on the frame 41, and a plurality of moving contacts 43 mounted on the moving contact frames 42.

[0032] A guide rod 44 is respectively provided at the position corresponding to the two guide grooves 16 on the frame 41. The guide rod 44 is slidably disposed in the guide groove 16, which guides the frame 41 and prevents it from tilting during movement. At least two elastic elements 45 are also provided at the positions corresponding to the two abutment grooves 13 on the frame 41, which provide additional abutment force when the frame 41 moves toward the static spring assembly 50. Since the elastic elements 45 are located at both ends of the frame 41, the elastic elements 45 at both ends can simultaneously provide abutment force to both ends of the frame 41 when it moves toward the static spring assembly 50, that is, both ends of the frame 41 simultaneously abut toward the static spring assembly 50, so that the force on both ends of the frame 41 is uniform, thereby improving the stability of the frame 41 during reciprocating motion.

[0033] Multiple movable contact frames 42 are fixedly arranged at intervals on the frame 41. The number of these frames is adjusted according to actual usage requirements. In this embodiment, there are three movable contact frames 42. Two movable contact frames 42 are located at both ends of the frame 41, and one is located in the middle region of the frame 41 to maintain a relatively even weight distribution on the frame 41. Each movable contact frame 42 has at least two movable contacts 43 to ensure a passageway can be formed.

[0034] Each of the stationary spring assemblies 50 includes two stationary spring plates 51 inserted into the stationary spring slots 15, and at least one stationary contact 52 disposed on the stationary spring plates 51. The stationary contact 52 is disposed corresponding to the moving contact 43.

[0035] In use, when the coil 22 is energized, the first yoke 23 becomes the N pole, and the second yoke 24 and the third yoke 25 become the S poles. Since the magnetic poles of the second magnetic yoke 33 and the fourth magnetic yoke 35 are N poles, and the magnetic poles of the first magnetic yoke 32 and the third magnetic yoke 34 are S poles, the first yoke 23 attracts the first magnetic yoke 32 and repels the second magnetic yoke 33. The second yoke 24 repels the third magnetic yoke 34, while the third yoke 25 attracts the fourth magnetic yoke 35, generating a force in the same direction that pushes the moving spring assembly 40 toward the stationary spring assembly 50 until the moving contact 43 abuts against the stationary contact 52. With the assistance of the guide rod 44 and the elastic element 45, the frame 41 and the permanent magnet 31 connected to it can move smoothly toward the stationary spring assembly 50. When the current in the coil 22 changes direction, the magnetic poles at both ends will interchange. That is, the first yoke 23 becomes the S pole, and the second yoke 24 and the third yoke 25 become the N pole. Since the magnetic poles of the permanent magnet 31 are fixed, under the attraction and repulsion between the magnetic poles, the permanent magnet 31 will be subjected to a force away from the stationary spring assembly 50, thereby disconnecting the connection between the moving contact 43 and the stationary contact 52.

[0036] Compared with the prior art, the high-stability multi-connector relay provided by this utility model directly connects the magnet assembly 30 and the moving spring assembly 40, allowing the force of the magnet assembly 30 to directly act on the moving spring assembly 40, reducing losses in force transmission. Two guide rods 44 are provided at both ends of the frame 41 to cooperate with the guide groove 16, guiding the movement direction of the frame 41 and preventing tilting of the frame 41 that would result in only partial contact between the contacts. At least one elastic element 45 is provided between the frame 41 and the abutment groove 13 to assist the magnet assembly 30 in pushing the moving spring assembly 40, increasing the thrust. This ensures that when the moving contact 43 contacts the stationary contact 52, a continuous abutment force is provided, significantly improving the stability of the relay when it is switched on.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A highly stable multi-connector relay, characterized in that: The high-stability multi-connector relay includes a base, a coil assembly disposed in the base, a magnet assembly disposed on one side of the coil assembly, a moving spring assembly disposed on the magnet assembly, and multiple stationary spring assemblies fixedly disposed on the side wall of the base. The base includes a coil mounting groove, a baffle assembly disposed on one side of the coil mounting groove, a moving spring receiving portion disposed on the side of the baffle assembly away from the coil mounting groove, and multiple stationary spring slots disposed on the side wall of the base. The baffle assembly includes two first and second supports respectively disposed on both sides of the coil mounting groove, a guide groove disposed between the first and second supports, a first baffle disposed on the side of the first support away from the coil mounting groove, a second baffle disposed on the side of the second support near the coil mounting groove, and a guide groove disposed on the side of the second support near the coil mounting groove. The third baffle on the side of the support away from the coil mounting slot; the coil assembly includes a coil frame disposed in the coil mounting slot, a set of coils wound on the coil frame, a first yoke disposed at one end of the coil frame, and two second and third yokes disposed at the other end of the coil frame; the magnet assembly includes a permanent magnet, two first and second magnetic yokes disposed on the end face of the permanent magnet facing the first support, and two third and fourth magnetic yokes disposed on the end face of the permanent magnet facing the second support; the moving spring assembly includes a frame fixedly disposed on the permanent magnet, a plurality of moving contact frames fixedly disposed on the frame, and a plurality of moving contacts disposed on the moving contact frames; each stationary spring assembly includes two stationary spring pieces inserted into the stationary spring slot, and at least one stationary contact disposed on the stationary spring pieces.

2. The high-stability multi-connector relay as described in claim 1, characterized in that: The base is located on both sides of the baffle assembly and is also provided with a guide groove.

3. The high-stability multi-connector relay as described in claim 1, characterized in that: A long strip-shaped guide slider is provided on each of the two end faces of the permanent magnet facing and away from the guide groove.

4. The high-stability multi-connector relay as described in claim 3, characterized in that: The guide slider is slidably disposed in the guide groove.

5. The high-stability multi-connector relay as described in claim 2, characterized in that: The frame is provided with a guide rod at the position corresponding to each of the two guide slots.

6. The high-stability multi-connector relay as described in claim 1, characterized in that: The base also includes two abutment grooves disposed on both sides of the baffle assembly, and the frame is provided with at least two elastic members at the positions corresponding to the two abutment grooves.

7. The high-stability multi-connector relay as described in claim 1, characterized in that: The stationary contact is configured to correspond to the moving contact.

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