Relay

Abstract

The utility model discloses a relay, which comprises a base, a static contact group and a moving part, at least two contact spaces are distributed on the base along the Y-axis direction, the contact spaces are opened along the X-axis direction, and the static contact group is provided with static contacts accommodated in the contact spaces; the moving part swings relative to the base and comprises moving contact pieces arranged corresponding to the contact spaces. The moving contact pieces are arranged in the Y-axis direction and are provided with moving contacts extending into the contact spaces from the openings and corresponding to the static contacts. The base is provided with an insulating part used for separating two adjacent contact spaces, the insulating part extends out of the opening in the X-axis direction, the moving part is provided with a separating part corresponding to the insulating part, and the separating part and the insulating part are matched to form a plug-in structure. The plugging structure comprises at least two insulating walls which are arranged at intervals along the Y-axis direction and a first insulating plate which is inserted into the interval between the two adjacent insulating walls. During breaking, the insulation effect is good, and the phenomenon of arc short circuit breakdown is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the switch field, concretely relates to a relay. BACKGROUND

[0002] The relay is an electric control device, is widely used in domestic appliance, remote control, communication and automation control circuit, and the substantial effect is a kind of automatic switch with smaller current to control larger current.

[0003] The relay belongs to one kind of low-voltage switch, and because of the attribute of switch, so there is certain requirement to its electric safety and insulation performance.The relay includes base, magnetic circuit part and contact part, the base is equipped with contact space, the contact space is equipped with opening, the magnetic circuit part includes the coil assembly fixed relative to the base and the armature assembly driven by coil assembly and swings, the contact part includes moving contact and static contact, moving contact and armature assembly connection form the movement component driven by coil assembly and swing relative to base, moving contact and static contact are equipped with moving contact point and static contact point respectively, static contact point is fixed in contact space, moving contact point can be from the opening of contact space and enter contact space and be driven by coil assembly and be closed or disconnected with static contact point.When static contact point is multiple and forms at least two static contact point groups, moving contact point is also multiple and corresponds with static contact point one by one to form multiple contact point groups, and each contact point group is connected with external load, it is found in practice that this relay can be normally used in domestic situation, but when this relay is applied to industrial control, since three-phase electricity in industrial control, adjacent load is different phase, there is potential difference between adjacent two contact point groups in the process that relay breaks load, and arc short-circuit breakdown phenomenon easily appears. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a relay, which has good insulation effect when breaking, and arc short-circuit breakdown phenomenon does not easily occur.

[0005] To achieve the above-mentioned purpose, the utility model and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0006] The technical solution one and related embodiments thereof provide a relay, which comprises a base, a static contact group and a moving component. The base is provided with at least two contact spaces in the Y-axis direction, and the contact spaces are open in the X-axis direction. The static contact group is provided correspondingly to the contact spaces and is provided with static contact points accommodated in the contact spaces. The moving component swings relative to the base and has at least a movement component in the Z-axis direction. The moving component comprises moving contacts provided correspondingly to the contact spaces. Each moving contact is arranged in the Y-axis direction and is provided with a moving contact point extending into the contact space from the opening and corresponding to the static contact point. The moving contact point is adapted to be closed or disconnected with the static contact point in the Z-axis direction. The base is provided with an insulation part for separating two adjacent contact spaces. The insulation part extends out of the opening in the X-axis direction. The moving component is provided with a separation part corresponding to the insulation part. The separation part cooperates with the insulation part to form a plug-in structure. The plug-in structure comprises at least two insulation walls arranged in the Y-axis direction and a first insulation plate inserted into the interval between two adjacent insulation walls.

[0007] Based on the technical solution one, the technical solution two is also provided. In the technical solution two and related embodiments thereof, the insulation part is provided with the insulation wall extending out of the opening in the X-axis direction. The separation part is provided with the first insulation plate.

[0008] Based on the technical solution two, the technical solution three is also provided. In the technical solution three and related embodiments thereof, the first insulation plate is adapted to extend into the interval between the opening parts of the corresponding two adjacent insulation walls.

[0009] Based on the technical solution three, the technical solution four is also provided. In the technical solution four and related embodiments thereof, a coil assembly is further included. The coil assembly is fixed relative to the base and is provided with a coil frame extending in the Z-axis direction and a core extending in the Z-axis direction and penetrating through the coil frame. The core is provided with a magnetic pole part protruding from the first side of the coil frame in the Z-axis direction. The first side of the coil frame is provided with a second insulation plate located between the magnetic pole part and the contact space in the X-axis direction. The second insulation plate is perpendicular to the X-axis direction. The moving component is arranged on the first side of the coil frame.

[0010] Based on the technical solution four, the technical solution five is also provided. In the technical solution five and related embodiments thereof, the moving component comprises an armature magnetically driven by the coil assembly and an insulation part fixed to the armature and each moving contact. The armature is located on the side of the second insulation plate close to the magnetic pole part in the X-axis direction and is adapted to be attracted to or away from the magnetic pole part. The insulation part is provided with the first insulation plate. The side of the insulation part close to the second insulation plate is further provided with a baffle. When the static contact point and the moving contact point are closed, the baffle is parallel to the second insulation plate and separates the armature and the second insulation plate in the X-axis direction.

[0011] Based on technical solution five, there is also technical solution six. In technical solution six and its related embodiments, the armature and the moving contact are respectively fixed to the two opposite sides of the insulating member; the insulating member is provided with an isolation part that separates two adjacent moving contacts along the Y-axis direction, and the end of the first insulating plate away from the isolation space is connected to the isolation part and cooperates with the isolation part to form a blocking part that separates two adjacent moving contacts.

[0012] Based on technical solution five, there is also technical solution seven. In technical solution seven and its related embodiments, the first side of the coil frame is provided with a second insulating plate corresponding to each contact space, and each second insulating plate is spaced apart along the Y-axis direction; the first insulating plate is also adapted to extend into the space between the corresponding two second insulating plates.

[0013] Based on technical solution seven, there is also technical solution eight. In technical solution eight and its related embodiments, each stationary contact is located at the same height along the Z-axis, and each second insulating plate is located at the same height along the Z-axis. The second insulating plate is flush with the stationary contact along the Z-axis or protrudes relative to the stationary contact along the Z-axis.

[0014] Based on technical solution five, technical solution nine is also provided. In technical solution nine and its related embodiments, the side of the baffle near the second insulating plate is also provided with an isolation groove that opens away from the armature, and the isolation groove extends along the length direction of the baffle.

[0015] Based on any one of technical solutions four to nine, there is also a technical solution ten. In technical solution ten and its related embodiments, the coil assembly is further provided with a coil winding extending along the Z-axis direction; the first side of the coil frame protrudes near the contact space and has an abutment wall perpendicular to the Z-axis direction, and the base is provided with an abutment surface suitable for abutting against the abutment wall to separate the coil winding and the contact space along the Z-axis direction.

[0016] Based on any one of technical solutions one to nine, a technical solution eleven is also provided. In technical solution eleven and its related embodiments, each contact space is further provided with an isolation wall. The isolation wall is provided with an isolation wall perpendicular to the Y-axis direction and two extension walls perpendicular to the Z-axis direction. The two extension walls are respectively formed on both sides of the free end of the isolation wall along the Y-axis direction and are spaced apart along the Y-axis direction. Each static contact group is provided with two static contacts arranged along the Y-axis direction. The two static contacts are adapted to be separated by the isolation wall.

[0017] Based on technical solution eleven, there is also technical solution twelve. In technical solution twelve and its related embodiments, each static contact group is used to connect to loads of different phases.

[0018] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0019] Through continuous observation, experimentation, and research, the applicant has come to the conclusion that the technical problem in the existing technical solution that "there is a potential difference between two adjacent contact groups during the relay disconnection process, which easily leads to arcing and short-circuiting" is that the existing relay uses air isolation between two adjacent contact groups, which can only be used for switching different loads with the same voltage phase. When switching loads with different voltage phases, the arcs of adjacent contact groups will attract each other at the moment the relay disconnects, resulting in arcing and short-circuiting, causing the relay to fail.

[0020] In technical solution one and its preferred embodiment, when the relay is simultaneously connected to loads with different potentials and used to switch between loads with different potentials, the insulating part separates two adjacent contact spaces. The insulating part extends out of the opening of the contact space along the X-axis direction, and the separating part and the insulating part cooperate to form a plug-in structure. The plug-in structure includes at least two insulating walls spaced apart along the Y-axis direction and a first insulating plate inserted into the gap between two adjacent insulating walls. Therefore, the arc when the contact groups of the two adjacent contact spaces break is blocked from moving in the Y-axis direction, and can only bypass the plug-in structure formed by the separating part and the insulating part from the outside. That is, it must bypass at least the insulating wall, the first insulating plate, and the gap between the insulating wall and the first insulating plate. The arc path is longer, thereby reducing and blocking the possibility of arc continuity when the adjacent contact groups break, and it is not easy to produce arc short circuit breakdown. The setting of the insulating part can increase the strength of the base. During the relay breaking process, the separating part can cooperate with the insulating part to isolate the moving contacts of the two adjacent moving contacts, thereby further increasing the insulation strength of the relay.

[0021] Compared to existing technologies, this technical solution does not require increasing the space occupied by the relay in the X, Y, and Z axes. The improvements to the relay are limited to the design of the insulation and separation components, and there is no need to change the relay's assembly process. Thus, a significant increase in relay insulation strength is achieved with minimal modifications, resulting in a clever structure and low cost. Furthermore, the relay in this solution can be connected to loads at the same potential, making it more versatile and suitable for various application environments.

[0022] In technical solution two and its preferred embodiment, the insulating part is provided with at least two insulating walls, the insulating walls extending out of the opening along the X-axis direction, and the partition part is provided with a first insulating plate. Compared with the solution where the insulating part is provided with a first insulating plate and the partition part is provided with at least two insulating walls, on the one hand, providing at least two insulating walls on the insulating part is more conducive to increasing the strength of the base. On the other hand, if at least two insulating walls are formed on the partition part, compared with forming a first insulating plate on the partition part, the length of the moving part along the Y-axis direction will be longer in order to avoid the moving contact. That is to say, forming a first insulating plate on the partition part can make the length of the relay in the Y-axis direction shorter. More importantly, the modification of the moving part mold during production and processing is smaller, which is more conducive to reducing processing costs.

[0023] In technical solution three and its preferred embodiments, since the moving part has at least a motion component along the Z-axis, and the first insulating plate also has a motion component along the Z-axis, the first insulating plate is adapted to extend into the gap between the protruding openings of the corresponding two adjacent insulating walls, thus avoiding interference between the first insulating plate and the outer wall of the base. If the first insulating plate extends into the part of the two insulating walls located in the contact space, then an avoidance opening needs to be opened on the outer wall of the base corresponding to the contact space, which will undoubtedly reduce the strength of the base. Therefore, this technical solution avoids interference between the base and the first insulating plate and ensures the strength of the base.

[0024] In technical solution four and its preferred embodiments, the provision of the second insulating plate can increase the arc path of the arc reaching the magnetic pole when the contact group breaks down, thereby increasing the insulation strength and making it less likely to cause arc short circuit breakdown.

[0025] In technical solution five and its preferred embodiments, the armature is located on the side of the second insulating plate near the magnetic pole part along the X-axis and is adapted to be attracted to or away from the magnetic pole part; the insulating member is provided with a first insulating plate, and a baffle is also provided on the side near the second insulating plate; when the stationary contact and the moving contact are closed, the baffle is parallel to each of the second insulating plates and separates the armature and each of the second insulating plates along the X-axis. Therefore, the arc moving in the X-axis direction when the contact group in the contact space is broken is blocked, and it can only reach the armature (or magnetic pole part) by going around the free end of the second insulating plate, the gap between the second insulating plate and the baffle, and the free end of the baffle from the outside. The arc path is longer, thereby reducing and blocking the possibility of arc connection, increasing the insulation strength, and making it less likely to produce arc short circuit breakdown.

[0026] In technical solution six and its preferred embodiment, the end of the first insulating plate away from the isolation space is connected to the isolation part and cooperates with the isolation part to form a blocking part that separates two adjacent moving contacts. During the relay disconnection process, the blocking part can block the electric arc between the moving contacts of the two adjacent moving contacts along the Y-axis direction, further reducing and blocking the possibility of electric arc connection.

[0027] In the seventh technical solution and its preferred embodiment, a second insulating plate is provided on the first side of the coil frame, which corresponds to each contact space. The second insulating plates are spaced apart along the Y-axis. The first insulating plate is also adapted to extend between the two corresponding second insulating plates, which avoids the movement interference of the second insulating plate with respect to the first insulating plate and ensures the height of the first insulating plate.

[0028] In technical solution eight and its preferred embodiments, each stationary contact is located at the same height along the Z-axis, and each second insulating plate is located at the same height along the Z-axis. The second insulating plate is flush with the stationary contact along the Z-axis or protrudes relative to the stationary contact along the Z-axis, ensuring that the second insulating plate blocks the arc of the stationary contact and the armature.

[0029] In technical solution nine and its preferred embodiment, the side of the baffle near the second insulating plate is provided with an isolation groove that opens away from the armature. The isolation groove extends along the length of the baffle. The isolation groove can accommodate the electric arc when the relay is disconnected. Compared with the side of the baffle near the second insulating plate that is away from the armature, which is a flat surface, the creepage distance between the contact group and the armature is longer when the contact group is disconnected, and the insulation effect is better.

[0030] In the tenth technical solution and its preferred embodiment, the first side of the coil frame protrudes near the contact space and has an abutment wall perpendicular to the Z-axis direction. The base has an abutment surface suitable for abutting the abutment wall to isolate the coil winding and the contact space along the Z-axis direction, effectively blocking the electric arc between the coil winding and the contact group and improving the insulation strength of the relay.

[0031] In technical solution eleven and its preferred embodiments, the structural arrangement of the isolation wall makes the creepage distance between adjacent stationary contacts in the contact space longer and the insulation effect better.

[0032] In technical solution 12 and its preferred embodiments, each static contact group is used to connect to loads of different phases, which is a preferred implementation of technical solution 1. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an exploded perspective view of the relay according to Embodiment 1 of this utility model;

[0035] Figure 2 This is a schematic diagram of the base, stationary contact, and coil terminal of Embodiment 1 of this utility model. Figure 1 ;

[0036] Figure 3 This is a schematic diagram of the base, stationary contact, and coil terminal of Embodiment 1 of this utility model. Figure 2 ;

[0037] Figure 4 This is a schematic diagram of the coil assembly and armature assembly of Embodiment 1 of this utility model;

[0038] Figure 5 This is a schematic diagram of the relay concealment cover of Embodiment 1 of this utility model;

[0039] Figure 6 This is a front view of the base, stationary contact, armature assembly, and part of the coil assembly of Embodiment 1 of this utility model;

[0040] Figure 7 for Figure 6 Sectional view along the AA direction;

[0041] Figure 8 This is a top view of the relay according to Embodiment 1 of this utility model;

[0042] Figure 9 for Figure 8 A cross-sectional view along the BB direction, showing the moving and stationary contacts in the open state;

[0043] Figure 10 for Figure 8 A cross-sectional view along the BB direction, showing the moving and stationary contacts in a closed state;

[0044] Figure 11 This is a top view of the relay concealment cover according to an embodiment of the present utility model;

[0045] Figure 12 for Figure 11 Sectional view in the CC direction;

[0046] Figure 13 This is a schematic diagram of the armature assembly in Embodiment 2 of this utility model;

[0047] Figure 14 This is a cross-sectional view of Embodiment 2 of the present invention.

[0048] Explanation of key figure labels:

[0049] Base 10; Contact space 01; Positioning space 02; Bottom wall 11; First through hole 111; Second through hole 112; Isolation wall 12; Isolation wall 121; Extension wall 122; Insulating wall 13; Slot 14; Abutment surface 15; Coil assembly 20; Coil frame 21; Barrier wall 211; Second insulating plate 212; Abutment wall 213; First insert block 214; Coil winding 22; Coil terminal 23; Iron core 24; Magnetic pole section 241; Yoke 25 First arm 251; connecting bar 2511; first hook groove 2512; second insert block 2513; second arm 252; notch 2521; armature assembly 30; armature 31; second hook groove 311; insulating component 32; first insulating plate 321; baffle 322; isolation groove 323; isolation part 324; blocking part 325; tension spring 40; stationary contact 50; stationary contact 51; lead-out terminal 52; moving contact 60; moving contact 61; cover 70. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0051] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0052] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0053] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does 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 limiting the specific protection scope of this utility model.

[0054] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0055] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0056] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0057] Example 1

[0058] See Figure 1 , Figure 1 A relay is shown, including a base 10, a magnetic circuit portion, a contact portion, and a housing 70.

[0059] See Figures 1-3 The base 10 is a box-shaped structure with one end open. Figure 1 and Figure 3 In the middle, the base 10 has an opening at one end along the X-axis, and the base 10 also has a bottom wall 11 opposite to the opening. At least two contact spaces 01 are arranged along the Y-axis on one side of the base 10 along the Z-axis. Figures 1-3In this design, the Z-axis represents the vertical direction, the X-axis represents the horizontal direction, and the Y-axis represents the front-back direction. The base 10 has two contact spaces 01, each elongated and open along the X-axis. Each contact space 01 contains a partition wall 12, which includes a partition wall 121 perpendicular to the Y-axis and two extension walls 122 perpendicular to the Z-axis. The two extension walls 122 are formed on both sides of the free end of the partition wall 121 along the Y-axis and spaced apart along the Y-axis. The base 10 has an insulating portion for separating adjacent contact spaces 01. The insulating portion includes at least two insulating walls 13 spaced apart along the Y-axis, with the two insulating walls 13 extending outwards along the X-axis. In this embodiment, the insulating portion has two insulating walls 13, but it should be understood that the number of insulating walls 13 can be increased as needed. Below the contact spaces 01, the base 10 has a positioning space 02, open along the X-axis, and contains a slot 14 open along the X-axis. Figure 3 In the positioning space 02, a slot 14 is provided at each end along the Z-axis direction. The positioning space 02 also has an abutment surface 15 perpendicular to the Z-axis direction, which is adapted to abut against the abutment wall 213 (described below) along the Z-axis direction. See also... Figure 2 The bottom wall 11 has two first through holes 111 corresponding to each contact space 01, and two second through holes 112 corresponding to the positioning space 02. In this embodiment, there are a total of 4 first through holes 111, which are arranged at intervals along the Y-axis.

[0060] The magnetic circuit includes a coil assembly 20, an armature assembly 30, and a tension spring 40.

[0061] See Figure 1 and Figures 9-10 The coil assembly 20 includes a coil frame 21, a coil winding 22, a coil terminal 23, an iron core 24, and a yoke 25.

[0062] See Figure 1The coil frame 21 extends along the Z-axis and has a central hole extending along the Z-axis. Both ends of the coil frame 21 along the Z-axis are respectively provided with baffles 211. On the left side of the first (upper) side of the coil frame 21 along the Z-axis, a second insulating plate 212 perpendicular to the X-axis is provided. In this embodiment, two second insulating plates 212, spaced apart along the Y-axis, protrude from the baffle 211 on the first side of the coil frame 21, with each second insulating plate 212 at the same height along the Z-axis. The left end of the baffle 211 on the first side of the coil frame 21 has a protruding abutment wall 213 perpendicular to the Z-axis. The abutment wall 213 is adapted to abut against the abutment surface 15 mentioned above to separate the coil winding 22 and the contact space 01 mentioned below along the Z-axis. The upper left end of the coil frame 21 has a first insert block 214 adapted to the slot 14 above the base 10, thereby allowing the coil frame 21 to be fixed relative to the base 10. When the coil frame 21 is fixed relative to the base 10, see... Figures 8-10 The left side of the coil frame 21 faces the base 10, and the right side faces away from the base 10. Each second insulating plate 212 corresponds to each contact space 01.

[0063] The coil winding 22 is wound around the coil frame 21 and located between two retaining walls 211, so the axis of the coil winding 22 also extends along the Z-axis. The coil winding 22 is connected to the coil terminal 23, which penetrates the second through hole 112 of the bottom wall 11 along the X-axis. The iron core 24 extends along the Z-axis and is inserted into the center hole of the coil frame 21. The iron core 24 has a magnetic pole portion 241 protruding from the first side of the coil frame 21 along the Z-axis, and the second insulating plate 212 is located to the left of the magnetic pole portion 241.

[0064] The yoke 25 is L-shaped and has a first arm 251 and a second arm 252. The first arm 251 extends along the X-axis and is fixed to the lower end of the iron core 24. A connecting strip 2511 extending along the X-axis is provided on the right side of the first arm 251, and a first hook groove 2512 with an opening facing downward is provided on the right side of the connecting strip 2511. A second insert 2513 is formed on the left side of the first arm 251 to fit into the slot 14 below the base 10. The second arm 252 is located on the right side of the coil frame 21 and extends upward from the right end of the first arm 251. A notch 2521 is formed at the upper end of the second arm 252.

[0065] See Figures 4-5 , Figures 9-10The armature assembly 30 is placed on the first side of the coil frame 21 and includes an armature 31 and an insulator 32 fixed to each other. The armature 31 is located on the side (right side) of the second insulating plate 212 along the X-axis direction close to the magnetic pole part 241 and is adapted to be attracted to or away from the magnetic pole part 241. The armature 31 has a plate-shaped structure. The right end of the armature 31 is inserted into the notch 2521 and is attracted to or away from the magnetic pole part 241 by swinging up and down. The right end of the armature 31 is also provided with a second hook groove 311 with an upward opening. The insulating member 32 is provided with a partition portion, which cooperates with the insulating portion mentioned above to form a plug-in structure. The plug-in structure includes at least two insulating walls 13 spaced apart along the Y-axis and a first insulating plate 321 inserted into the gap between two adjacent insulating walls 13. In this embodiment, the insulating member 32 has a partition portion on its left side (the side closer to the isolation space 01), and the partition portion has a first insulating plate 321. The insulating member 32 also has an isolation portion 324 on its right side (the side away from the isolation space 01). The right end of the first insulating plate 321 is connected to the isolation portion 324 and cooperates with the isolation portion 324 to form a blocking portion 325. See also Figures 5-7 The first insulating plate 321 corresponds to the insulating portion mentioned above and is adapted to extend into the gap between the two insulating walls 13 of the corresponding insulating portion. In this embodiment, the first insulating plate 321 is adapted to extend into the gap between the protruding openings of the two adjacent insulating walls 13. A baffle 322 is provided at the left end of the insulating member 32. It should be understood that although this embodiment only shows an implementation in which the insulating portion has two insulating walls 13 and the separating portion has a first insulating plate 321, in other embodiments, the separating portion may have two insulating walls, the insulating portion may have a first insulating plate, and the protruding opening of the first insulating plate may be inserted into the gap between the two insulating walls.

[0066] See Figures 8-10 The tension spring 40 extends along the Z-axis, and its upper and lower ends are respectively adapted to hook with the second hook groove 311 and the first hook groove 2512.

[0067] See Figure 1 , Figures 8-10 The contact part includes a static contact group and a moving contact 60. In this embodiment, the static contact group is correspondingly arranged with the contact space 01 and has a static contact 51 housed in the contact space 01. In this embodiment, the number of static contact groups is equal to the number of contact spaces 01 and corresponds one-to-one, that is, there are two static contact groups. Each static contact group is used to connect loads of different phases. Each static contact group has two static contacts 50 arranged along the Y-axis direction. The static contact 50 has a static contact 51 and an outgoing terminal 52 that extends out of the base 10 through the first through hole 111. In this embodiment, the two static contacts 50 are separated by the isolation wall 12. Each static contact 51 is located at the same height along the Z-axis direction, and the second insulating plate 212 is flush with the static contact 51 along the Z-axis direction or protrudes relative to the static contact 51 along the Z-axis direction.

[0068] The moving contact 60 is correspondingly disposed in the contact space 01. Each moving contact 60 is arranged along the Y-axis and has a moving contact 61 that extends into the contact space 01 from the opening and corresponds to the stationary contact 51. The moving contact 61 is adapted to close or open with the stationary contact 51 along the Z-axis. In this embodiment, the armature 31 and the moving contact 60 are respectively fixed to the two opposite sides of the insulating member 32. See [reference needed] Figures 5-6 The isolation part 324 and the first insulating plate 321 separate two adjacent moving contacts 60 along the Y-axis direction, that is, the blocking part 325 separates two adjacent moving contacts 60.

[0069] In this embodiment, there are also two moving contacts 60. Each moving contact 60 is provided with two moving contacts 61. Each moving contact 60 is fixed to the insulating member 32 and located above the baffle 322. The moving contacts 61 are located on the left side of the baffle 322.

[0070] The cover 70 is used to cooperate with the base 10. It is a box-shaped structure with one end open. It cooperates with the base 10 to form a receiving space for accommodating the magnetic circuit part.

[0071] The installation process of the relay in this embodiment is as follows:

[0072] The stationary contact 50 is fixed to the base 10, and the lead-out terminal 52 extends out of the base 10 through the first through hole 111. The coil terminal 23 is fixed to the base 10, and the coil terminal 23 extends out of the base 10 through the second through hole 112. The structure is as follows after installation. Figure 3 As shown;

[0073] The coil assembly 20 is inserted into the positioning space 02 along the X-axis. The first insertion block 214 and the second insertion block 2513 of the coil assembly 20 respectively mate with the two slots 14 of the positioning space 02, thereby fixing the coil assembly 20 relative to the base 10. Then, the coil winding 22 is fixedly connected to the two coil terminals 23. (See [reference]). Figures 11-12 ;

[0074] The armature assembly 30 and the moving contact 60 are fixedly connected to form a moving component. The moving component includes the moving contact 60 which is provided corresponding to the contact space 01. The moving component is placed on the first side of the coil frame 21. The moving contact 60 is extended into the corresponding contact space 01 so that the moving contact 61 and the stationary contact 51 are matched one by one. The armature 31 in the moving component is placed into the notch 2521 of the second arm 252 of the yoke 25. Then, the upper and lower ends of the tension spring 40 are respectively fitted into the second hook groove 311 and the first hook groove 2512.

[0075] Then, the cover 70 is fixed to the base 10, and the installation is complete.

[0076] After installation, the second insulating plate 212 is located between the magnetic pole portion 241 and the contact space 01 along the X-axis direction, and the first insulating plate 321 of the moving part is located between the two insulating walls 13 along the X-axis direction. The first insulating plate 321 is also inserted between the two second insulating plates 212. The baffle 322 is close to the second insulating plate 212. The end of the first insulating plate 321 away from the isolation space 01 is connected to the isolation portion 324 and cooperates with the isolation portion 324 to form a blocking portion 325 that separates two adjacent moving contacts 60.

[0077] The working process of this embodiment is as follows:

[0078] When the armature assembly 30 is not energized by the coil assembly 20, the tension spring 40 applies force to the moving part, causing the moving contact 61 to disconnect from the stationary contact 51.

[0079] When the coil assembly 20 is energized by applying voltage, the armature 31 is attracted by the magnetic pole portion 241 of the iron core 24, causing the moving part to swing relative to the base 10 until the armature 31 and the magnetic pole portion 241 are in contact. When the moving part swings, it has motion components along the Z-axis and X-axis, so that the moving contact 61 and the stationary contact 51 close along the Z-axis. At this time, the moving contact 60 connects the two stationary contacts 51 of the corresponding stationary contact 50. At this time, the tension spring 40 stores energy. The baffle 322 is parallel to each of the second insulating plates 212 and separates the armature 31 and the second insulating plate 212 along the X-axis. The second insulating plate 212 separates the armature 31 and the contact space 01 along the X-axis.

[0080] When pressure is stopped on the coil assembly 20, the tension spring 40 releases energy and drives the moving part to rotate clockwise, the armature 31 moves away from the magnetic pole 241, and the moving contact 61 disconnects from the stationary contact 51.

[0081] In this embodiment, when the relay is simultaneously connected to loads at different potentials and used to switch between loads at different potentials, the insulating part separates two adjacent contact spaces 01. The insulating part extends out of the opening of the contact space along the X-axis direction, and the separating part and the insulating part cooperate to form a plug-in structure. The plug-in structure includes at least two insulating walls spaced apart along the Y-axis direction and a first insulating plate 321 inserted into the gap between two adjacent insulating walls 13. Therefore, the arc when the contact groups of the two adjacent contact spaces break is blocked from moving in the Y-axis direction, and can only bypass the plug-in structure formed by the separating part and the insulating part from the outside. That is, it must at least bypass the insulating wall 13, the first insulating plate 321, and the gap between the insulating wall 13 and the first insulating plate 321. The arc path is longer, thereby reducing and blocking the possibility of arc connection when adjacent contact groups break, and it is not easy to produce arc short circuit breakdown. The setting of the insulating part can increase the strength of the base 10. During the relay breaking process, the separating part can cooperate with the insulating part to isolate the moving contacts 61 of the two adjacent moving contacts 60, thereby further increasing the insulation strength of the relay. Compared to existing technologies, this embodiment does not require increasing the space occupied by the relay in the X, Y, and Z axes. The improvements to the relay are limited to the installation of the insulation portion and the first insulation plate 321, and there is no need to change the assembly process of the relay product. Thus, a significant increase in the insulation strength of the relay is achieved with minimal modifications, resulting in a clever structure and low cost. Furthermore, the relay of this embodiment can be connected to loads at the same potential, thus having wider applicability and suitability for different application environments.

[0082] In this embodiment, the insulating part is provided with at least two insulating walls 13, and the insulating walls 13 extend outwards along the X-axis direction. The partition part is provided with a first insulating plate 321. Compared with the solution of the insulating part being provided with a first insulating plate 321 and the partition part being provided with at least two insulating walls 13, on the one hand, it is more beneficial to increase the strength of the base 10 by providing at least two insulating walls 13 on the insulating part. On the other hand, if at least two insulating walls 13 are formed on the partition part, compared with the first insulating plate 321 being formed on the partition part, the length of the moving part of the moving contact 60 along the Y-axis direction will be longer in order to avoid the moving part 60. That is to say, the length of the relay in the Y-axis direction can be shorter by forming the first insulating plate 321 on the partition part. More importantly, the modification of the moving part mold is smaller during production and processing, which is more conducive to reducing processing costs.

[0083] In this embodiment, since the moving part has at least a motion component along the Z-axis, and the first insulating plate 321 also has a motion component along the Z-axis, the first insulating plate 321 is adapted to extend into the gap between the protruding openings of the two adjacent insulating walls 13, thus avoiding interference between the first insulating plate 321 and the outer wall of the base 10. If the first insulating plate 321 extends into the part of the two insulating walls 13 located in the contact space 01, then an avoidance opening needs to be opened on the outer wall of the base 10 corresponding to the contact space 01, which would undoubtedly reduce the strength of the base 10. Therefore, this embodiment avoids interference between the base 10 and the first insulating plate 321 and ensures the strength of the base 10.

[0084] In this embodiment, the second insulating plate 212 can increase the arc path of the arc reaching the magnetic pole when the contact group breaks down, thereby increasing the insulation strength and making it less likely to cause arc short circuit breakdown.

[0085] In this embodiment, the armature 31 is located on the side of the second insulating plate 212 along the X-axis direction near the magnetic pole portion 241 and is adapted to be attracted to or away from the magnetic pole portion 241; the insulating member 32 is provided with a first insulating plate 321, and a baffle 322 is also provided on the side of the insulating member 32 near the second insulating plate 212; when the stationary contact 51 and the moving contact 61 are closed, the baffle 322 is parallel to each of the second insulating plates 212 and separates the armature 31 and each of the second insulating plates 212 along the X-axis direction. Therefore, the arc when the contact group in the contact space 01 is broken is blocked from moving in the X-axis direction, and can only reach the armature 31 by going around the free end of the second insulating plate 212, the gap between the second insulating plate 212 and the baffle 322 and the free end of the baffle 322 from the outside. The arc path is long, thereby reducing and blocking the possibility of arc connection, increasing the insulation strength, and making it less likely to produce arc short circuit breakdown.

[0086] In this embodiment, the end of the first insulating plate 321 away from the isolation space 01 is connected to the isolation part 324 and cooperates with the isolation part 324 to form a blocking part 325 that separates two adjacent moving contacts 60. During the relay disconnection process, the blocking part 325 can block the electric arc between the moving contacts of the two adjacent moving contacts 60 along the Y-axis direction, further reducing and blocking the possibility of electric arc connection.

[0087] In this embodiment, the first side of the coil frame 21 is provided with a second insulating plate 212 corresponding to each contact space 01, and each second insulating plate 212 is arranged at intervals along the Y-axis direction; the first insulating plate 321 is also adapted to extend between the two corresponding second insulating plates 212, so as to avoid the second insulating plate 212 interfering with the movement of the first insulating plate 321 and to ensure the height of the first insulating plate 321.

[0088] In this embodiment, each stationary contact 51 is located at the same height along the Z-axis, and each second insulating plate 212 is located at the same height along the Z-axis. The second insulating plate 212 is flush with the stationary contact 51 along the Z-axis or protrudes relative to the stationary contact 51 along the Z-axis, ensuring that the second insulating plate 212 blocks the arc of the stationary contact 51 and the armature 31.

[0089] In this embodiment, the first side of the coil frame 21 protrudes from the contact space 01 and has an abutment wall 213 perpendicular to the Z-axis direction. The base 10 has an abutment surface 15 suitable for abutting the abutment wall 213 to isolate the coil winding 22 and the contact space 01 along the Z-axis direction, effectively blocking the arc between the coil winding 22 and the contact group and improving the insulation strength of the relay.

[0090] In this embodiment, the structure of the isolation wall 12 makes the creepage distance between adjacent stationary contacts 50 in the contact space 01 longer and the insulation effect better.

[0091] Example 2

[0092] Example 2 has a structure that is basically the same as that of Example 1, except that, see [link to example]. Figures 13-14 The baffle 322 is also provided with an isolation groove 323 on the side (left side) near the second insulating plate 212, which is open and away from the armature 31. The isolation groove 323 extends along the length of the baffle 322. The isolation groove 323 can accommodate the electric arc when the relay is disconnected. Compared with the flat surface of the side of the baffle 322 near the second insulating plate 212 away from the armature 31, the creepage distance between the contact group and the armature 31 is longer when the contact group is disconnected, and the insulation effect is better.

[0093] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A relay comprising a base, a set of stationary contacts, and a moving component, wherein the base has at least two contact spaces arranged along the Y-axis and the contact spaces are open along the X-axis; the set of stationary contacts is correspondingly disposed in the contact spaces and has stationary contacts accommodated within the contact spaces; the moving component oscillates relative to the base and has at least a motion component along the Z-axis, the moving component including moving contacts corresponding to the contact spaces, each moving contact being arranged along the Y-axis and having a moving contact extending into the contact space from the opening and corresponding to the stationary contact, the moving contact being adapted to close or open with the stationary contact along the Z-axis; characterized in that... The base is provided with an insulating part for separating two adjacent contact spaces. The insulating part extends out of the opening along the X-axis direction. The moving part is provided with a partition part corresponding to the insulating part. The partition part and the insulating part cooperate to form a plug-in structure. The plug-in structure includes at least two insulating walls spaced apart along the Y-axis direction and a first insulating plate inserted into the gap between two adjacent insulating walls.

2. A relay as described in claim 1, characterized in that, The insulating part is provided with the insulating wall, the insulating wall extends out of the opening along the X-axis direction, and the partition part is provided with the first insulating plate.

3. A relay as described in claim 2, characterized in that, The first insulating plate is adapted to extend into the gap between the protruding openings of two corresponding adjacent insulating walls.

4. A relay as described in claim 3, characterized in that, It also includes a coil assembly, which is fixed relative to the base and has a coil frame extending along the Z-axis and an iron core extending along the Z-axis and penetrating the coil frame. The iron core has a magnetic pole portion protruding from a first side of the coil frame along the Z-axis. The first side of the coil frame has a second insulating plate located between the magnetic pole portion and the contact space along the X-axis, and the second insulating plate is perpendicular to the X-axis. The moving part is located on the first side of the coil frame.

5. A relay as described in claim 4, characterized in that, The moving part includes an armature driven by the magnetic drive of the coil assembly and an insulating part fixedly connected to the armature and each moving contact; the armature is located on the side of the second insulating plate along the X-axis near the magnetic pole and is adapted to be attracted to or away from the magnetic pole; the insulating part is provided with the first insulating plate, and the side of the insulating part near the second insulating plate is also provided with a baffle. When the stationary contact and the moving contact are closed, the baffle is parallel to the second insulating plate and separates the armature and the second insulating plate along the X-axis.

6. A relay as described in claim 5, characterized in that, The armature and the moving contact are respectively fixed to the two opposite sides of the insulating member; the insulating member is provided with an isolation part that separates two adjacent moving contacts along the Y-axis direction, and the end of the first insulating plate away from the isolation space is connected to the isolation part and cooperates with the isolation part to form a blocking part that separates two adjacent moving contacts.

7. A relay as described in claim 5, characterized in that, The first side of the coil frame is provided with a second insulating plate corresponding to each contact space, and the second insulating plates are spaced apart along the Y-axis; the first insulating plate is also adapted to extend between two corresponding second insulating plates.

8. A relay as described in claim 7, characterized in that, Each stationary contact is at the same height along the Z-axis, and each second insulating plate is at the same height along the Z-axis. The second insulating plate is flush with the stationary contact along the Z-axis or protrudes relative to the stationary contact along the Z-axis.

9. A relay as described in claim 5, characterized in that, The baffle is also provided with an isolation groove with an opening facing away from the armature on the side near the second insulating plate, and the isolation groove extends along the length of the baffle.

10. A relay as described in any one of claims 4-9, characterized in that, The coil assembly also includes a coil winding extending along the Z-axis direction; the first side of the coil frame protrudes near the contact space and has an abutment wall perpendicular to the Z-axis direction, and the base has an abutment surface adapted to abut against the abutment wall to separate the coil winding and the contact space along the Z-axis direction.

11. A relay as claimed in any one of claims 1-9, characterized in that, Each contact space is also provided with an isolation wall, which has an isolation wall perpendicular to the Y-axis and two extension walls perpendicular to the Z-axis. The two extension walls are respectively formed on both sides of the free end of the isolation wall along the Y-axis and are spaced apart along the Y-axis. Each static contact group has two static contacts arranged along the Y-axis, and the two static contacts are adapted to be separated by the isolation wall.

12. A relay as described in claim 11, characterized in that, Each stationary contact group is used to connect loads of different phases.

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