Relay

Abstract

The utility model relates to the electrical technical field of switches, in particular to a relay, which comprises a static spring assembly, a movable spring assembly and a base, the static spring assembly comprises a static contact fixing part and a static spring leading-out part used for leading-out connection, the movable spring assembly comprises a movable contact fixing part, and the movable contact fixing part and the static contact fixing part are arranged at intervals in space. Projections of the movable contact fixing part and the static contact fixing part on the horizontal plane form an inner included angle area, the static spring leading-out part extends towards the height direction and penetrates out of the base to the outside, and pins at the tail end of the static spring leading-out part are distributed in the range of the inner included angle area. According to the utility model, the static spring lead-out part is arranged in the inner included angle area formed by the projections of the static contact fixing part and the movable contact fixing part on the horizontal plane, and the static spring lead-out part extends to the outside of the base in the height direction to form a pin; therefore, the arrangement of the movable spring assembly and the static spring assembly is more compact by utilizing the inner included angle area and the height space of the relay, and the miniaturization of the relay is facilitated.

Description

TECHNICAL FIELD

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

[0002] In order to ensure the medium withstand voltage of the relay, the pins of the relay are usually arranged far apart, specifically, the two ends of the relay are arranged on the same side (for example, the base), which leads to the increase of the size of the relay, and the installation space of the relay is limited, so the installation of the relay with large size is difficult, and the miniaturization of the relay is required. SUMMARY

[0003] The utility model discloses a relay with compact structure to meet the requirement of miniaturization of the relay.

[0004] To achieve the above object, the utility model discloses a technical scheme as follows: a relay, comprising a static spring assembly, a dynamic spring assembly and a base, the static spring assembly is provided with a static contact, the dynamic spring assembly is provided with a dynamic contact corresponding to the static contact to form a contact switch, the static spring assembly comprises a static contact fixing part for fixing the static contact and a static spring lead-out part for leading out the connection, the dynamic spring assembly comprises a dynamic contact fixing part for fixing the dynamic contact, the dynamic contact fixing part and the static contact fixing part are spaced apart in space to have a contact gap between the dynamic contact and the static contact, the dynamic contact fixing part and the static contact fixing part are defined as the height direction in the direction of forming the spatial interval, the extension plane of the static contact fixing part is a horizontal plane, the projection of the dynamic contact fixing part and the static contact fixing part on the horizontal plane forms an inner angle region, the static spring lead-out part extends towards the height direction and passes through the base to the outside, and the pins at the end of the static spring lead-out part are distributed within the range of the inner angle region.

[0005] In one embodiment, the dynamic spring assembly comprises two spaced apart dynamic contact fixing parts, the dynamic contact fixing parts extend towards the direction of the static contact fixing part, and the static spring lead-out part is arranged between the two dynamic contact fixing parts.

[0006] In one embodiment, the static spring assembly comprises a bent static spring lead-out piece, the static spring lead-out part and the contact fixing part are formed on the static spring lead-out piece, so that the static spring lead-out part and the contact fixing part are integrally connected, and the static spring lead-out piece further comprises a bending part formed between the contact fixing part and the static spring lead-out part.

[0007] In one embodiment, the junction of the static spring lead-out part and the bending part is located at the middle of the bottom edge, and the static spring lead-out part extends from the bending part along a direction perpendicular to the edge of the base.

[0008] In one embodiment, the projections of the moving contact fixing part and the stationary contact fixing part onto the horizontal plane form two acute angles, so that the inner angle region is the inner angle region formed by the two acute angles together, and the stationary spring lead-out part extends along a direction perpendicular to the stationary contact fixing part.

[0009] In one embodiment, the device further includes two spaced-apart coil leads disposed at the end of the moving contact fixing portion away from the moving contact, and both moving contact fixing portions extend between the two spaced-apart coil leads.

[0010] In one embodiment, the moving spring assembly includes a moving spring lead-out portion, which is electrically connected to the moving contact via a flexible conductor. The flexible conductor includes two conductive portions extending in the same direction as the moving contact fixing portion. Each conductive portion is disposed corresponding to one of the moving contact fixing portions, and each conductive portion is connected to one of the moving contacts and the moving spring lead-out portion.

[0011] In one embodiment, an armature connected to the moving spring assembly is further included. In the height direction, the armature is located on the side of the stationary contact fixing portion facing the stationary spring lead-out portion and is spaced apart from the stationary contact fixing portion. The extension direction of the stationary spring lead-out portion on the horizontal plane is defined as the Y-axis direction. In the Y-axis direction, a portion of the armature extends into the inner included angle region and is offset from the stationary contact fixing portion. The stationary spring lead-out portion is provided with a clearance notch to provide movement clearance for the armature.

[0012] In one embodiment, the moving spring assembly further includes a moving spring lead-out portion electrically connected to the moving contact for lead-out connection. The moving spring lead-out portion extends in the height direction and passes through the base to the outside. The extension direction of the stationary spring lead-out portion on the horizontal plane is defined as the Y-axis direction, and the direction perpendicular to the Y-axis on the horizontal plane is defined as the X-axis direction. The moving contact lead-out portion and the stationary spring lead-out portion are arranged opposite to each other at both ends of the base along the Y-axis direction.

[0013] In one embodiment, the projection of the moving contact fixing part on the horizontal plane extends in the direction of the stationary contact fixing part, and the moving spring lead-out part and the stationary spring lead-out part are perpendicular to each other.

[0014] In one embodiment, it further includes two coil lead-out members with coil lead-out portions. The two coil lead-out portions are arranged on both sides of the stationary spring lead-out portion in the X-axis direction, and the two coil lead-out portions are arranged opposite to each other, so that the moving contact lead-out portion, the stationary spring lead-out portion and the coil lead-out portion are arranged along the four sides of the base to form a four-point arrangement.

[0015] In one embodiment, the device further includes a coil assembly and an armature connected to the moving spring assembly. The armature is configured to actuate under the action of the coil assembly, causing the moving contact to close or open relative to the stationary contact. A stop mechanism is provided on the side of the armature away from the coil assembly. The stop mechanism abuts against the armature to limit its movement, and the stop mechanism is located within the area enclosed by the four-point arrangement.

[0016] In one embodiment, the coil assembly and the base are disposed opposite each other on both sides of the armature, and the stop mechanism is a metal positioning member disposed on the base. The metal positioning member includes an insertion part inserted into the base and an abutting part protruding from the base and extending toward the armature, so that the metal positioning member abuts against the armature through the abutting part.

[0017] In one embodiment, the device further includes a coil frame, the stationary contact fixing portion is disposed on the coil frame, the stationary spring lead-out portion extends relative to the stationary contact fixing portion in a direction away from the coil frame, and the stationary contact is disposed on the side of the stationary contact fixing portion facing the stationary spring lead-out portion.

[0018] In one embodiment, a coil lead is connected to the coil frame, and the coil frame is provided with a mounting slot for mounting the coil lead. One end of the coil lead extends beyond one end of the mounting slot to form a coil connection portion, and the other end extends beyond the other end of the mounting slot and extends out of the base to form a coil lead portion.

[0019] In one embodiment, the stationary contact fixing part is disposed on the coil frame, and the base is disposed opposite to the coil frame on both sides of the stationary contact fixing part. The coil frame is provided with a mounting part that extends and is embedded in the through hole of the base. The mounting part is provided with the mounting through groove, thereby forming an isolation baffle on the side wall of the mounting part to isolate the coil lead-out component.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model sets the static spring lead-out part in the inner angle area formed by the projection of the static contact fixing part and the moving contact fixing part on the horizontal plane, and extends the static spring lead-out part to the outside of the base in the height direction to form a pin. In this way, the layout of the moving spring assembly and the static spring assembly is more compact by utilizing the inner angle area and the height space of the relay, which is conducive to the miniaturization of the relay.

[0022] 2. When two sets of moving and stationary contacts are provided, the stationary spring lead-out part is located between the two moving contact fixing parts, and the projections of the stationary spring lead-out part and the moving contact fixing part on the horizontal plane extend in the same direction. Thus, the projections of the stationary spring lead-out part, the stationary contact fixing part, and the moving contact fixing part on the horizontal plane form a layout similar to the "E" shape. The space between the two moving contact fixing parts is fully utilized to arrange the stationary spring lead-out part, so that there is sufficient electrical clearance between the moving contact fixing part and the stationary spring lead-out part to prevent electrical breakdown.

[0023] 3. The “E”-shaped layout ensures that the stationary spring lead-out part and the moving contact fixing part overlap at least partially in the extension direction of the moving contact fixing part, reducing the space occupied in this direction and further promoting the miniaturization of the relay.

[0024] 4. By using a flexible conductor between the moving contact and the moving spring lead-out, the position of the moving spring lead-out relative to the moving contact becomes more flexible. This allows the moving spring lead-out to be positioned away from the stationary spring lead-out, so that the two can be arranged opposite each other at both ends of the base. This fully utilizes the size of the base to increase the distance between the moving spring lead-out and the stationary spring lead-out. Furthermore, the conductive part is positioned corresponding to the moving spring lead-out to ensure the distance between the flexible conductor and the stationary spring lead-out, thus ensuring the electrical safety of the relay.

[0025] 5. The moving spring lead-out, stationary spring lead-out, and coil lead-out are arranged in a quadrilateral layout along the four sides of the base. This makes full use of the base size and ensures sufficient electrical clearance between each lead-out part through a reasonable layout while miniaturizing the relay.

[0026] 6. The moving spring lead-out and the stationary spring lead-out are arranged perpendicular to each other, and the metal positioning part for stop and limit is set in the middle. This can reduce the size of the product by utilizing the space in the middle of the base, and the installation space of the metal positioning part is reduced by inserting it into the base. While meeting the requirements of relay miniaturization, it can also ensure the creepage distance between various conductive parts (including but not limited to the stationary spring lead-out, coil and metal positioning part) and improve the withstand voltage performance of the relay.

[0027] 7. The coil lead is mounted on the coil frame, with both ends extending beyond the mounting slot. One end also extends out of the base to form the coil lead end. The coil frame is used to fix the coil lead. Compared with the prior art where the coil lead is fixed to the housing, this simplifies the housing structure and reduces the size of the relay, which is beneficial for the miniaturization of the relay. Since the coil lead is mounted on the coil frame, it passes through the area where the moving and stationary contacts are located. In order to improve the electrical clearance between the coil lead end and the moving and stationary contact circuits, the mounting part extends from the coil frame to the base and is embedded in the base through hole, thereby forming physical isolation for the coil terminals and improving the creepage distance and withstand voltage performance. Attached Figure Description

[0028] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0029] Figure 2 This is an exploded view of an embodiment of this utility model.

[0030] Figure 3 This is a top view of an embodiment of the present invention without the casing.

[0031] Figure 4 This is a perspective view of an embodiment of the present invention without the outer casing.

[0032] Figure 5 yes Figure 4 Top view.

[0033] Figure 6 This is an incomplete perspective view of an embodiment of the present invention, showing the positional relationship between the moving spring, the armature, and the coil assembly.

[0034] Figure 7 This is a perspective view of the coil assembly according to an embodiment of the present invention.

[0035] Figure 8 This is a schematic diagram showing the relative positions of the stationary contact fixing part, the stationary spring lead-out part, and the moving contact fixing part in one embodiment of this utility model.

[0036] Figure 9 This is a schematic diagram showing the relative positions of the stationary contact fixing part, the stationary spring lead-out part, and the moving contact fixing part according to another embodiment of this utility model.

[0037] Figure 10 This is a perspective view of the stationary spring lead-out component according to one embodiment of the present utility model.

[0038] Figure 11 This is a perspective view of the stationary spring lead-out component from another angle according to an embodiment of this utility model.

[0039] Figure 12 This is an exploded view of the metal positioning component and base according to an embodiment of the present invention.

[0040] Figure 13 yes Figure 3 AA sectional view.

[0041] Figure 14 yes Figure 3 BB cross-sectional view.

[0042] The components include: 100 moving spring armature assembly, 200 coil assembly, 300 housing, and 400 stationary spring assembly.

[0043] 1. Stationary spring lead-out part, 11. Stationary contact fixing part, 111. Stationary contact, 12. Stationary spring lead-out part, 121. Relief notch, 13. Bending part, 2. Moving spring, 21. Moving contact fixing part, 211. Moving contact, 3. Base, 4. Housing, 5. Coil frame, 51. Mounting part, 510. Mounting slot, 6. Moving spring lead-out part, 60. Flexible conductor, 61. Moving contact connecting part, 62. Moving spring lead-out part, 7. Coil lead-out part, 71. Coil lead-out part, 72. Coil connecting part, 8. Armature, 9. Metal positioning part, 91. Insertion part, 92. Abutment part. Detailed Implementation

[0044] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0045] See Figures 1 to 7 As shown, this utility model discloses a relay, including a moving spring armature component 100, a coil assembly 200, a stationary spring assembly 400, and a housing 300. The moving spring armature component 100 is disposed at one end of the coil assembly and configured to operate under the magnetic attraction of the coil assembly 200 to close or open the contacts. The housing 300 is used to enclose the moving spring armature component 100, the coil assembly 200, and the stationary spring assembly 400. The moving spring armature component 100 includes a moving spring assembly and an armature connected to the moving spring assembly. The moving spring assembly, the stationary spring assembly 400, and the coil assembly 200 are each provided with pins extending out of the housing 300, including moving spring pins, stationary spring pins, and coil pins. The coil assembly 200 includes a coil frame 5, and the stationary spring assembly 400 is disposed on the coil frame 5. The stationary spring assembly 400 includes a stationary spring lead-out member 1 fixedly connected to the coil frame 5. The moving spring assembly includes a moving spring plate 2 and a moving spring lead-out member 6. The housing 300 includes a base 3 and a housing 4 covering the base 3. The stationary spring lead-out member 1 includes a stationary contact fixing part 11 and a stationary spring lead-out part 12 that are perpendicular to each other. The stationary contact fixing part 11 of the stationary spring lead-out member 1 is fixedly mounted on the coil frame 5, and the end of the stationary spring lead-out part 12 extends out to the base 3 to serve as a stationary spring pin. The moving spring 2 includes two moving contact fixing parts 21 that extend toward the stationary contact fixing parts and are spaced apart. Each moving contact fixing part 21 has a moving contact 211 at its end corresponding to the stationary contact 111. The direction in which the moving contact fixing parts 21 and the stationary contact fixing parts 11 form a spatial interval is defined as the height direction (i.e., the Z-axis direction). The extension plane where the stationary contact fixing parts 11 are located is defined as the horizontal plane. The extension direction of the stationary spring lead-out part 12 on the horizontal plane is defined as the Y-axis direction. The direction perpendicular to the Y-axis on the horizontal plane is defined as the X-axis direction, and the height direction is perpendicular to the horizontal plane.

[0046] See Figure 8 and Figure 9 As shown, the projections of the moving contact fixing part 21 and the stationary contact fixing part 11 onto the horizontal plane form an inner angle region (shaded area in the figure). The stationary spring lead-out part 12 extends in the height direction and passes through the base to the outside, with the pins at the end of the stationary spring lead-out part 12 distributed within the range of the inner angle region. The inner angle region refers to the three-dimensional spatial region formed by the angle plane formed by the projections of the moving contact fixing part 21 and the stationary contact fixing part 11 onto the horizontal plane extending in the height direction. More specifically, the inner angle refers to a right angle or an acute angle, and the centers of the moving contact 211 and the stationary contact 111 are both located at the intersection of this inner angle. Within this inner angle region, the projection of the stationary spring lead-out part 12 onto the horizontal plane can extend parallel to the moving contact fixing part 21 (in which case the projection of the moving contact fixing part 21 onto the horizontal plane extends along the Y-axis direction), or it can have a certain angle with the moving contact fixing part 21, a small angle so that the extending directions of the stationary spring lead-out part 12 and the moving contact fixing part 21 are nearly parallel. The preferred structure has an acute included angle, so that the projections of the moving contact fixing part 21 and the stationary contact fixing part 11 onto the horizontal plane form two acute included angles. This included angle region is the included angle region formed by the two acute angles. At this time, the stationary spring lead-out part 12 extends along the Y-axis direction, and the projection of the moving contact fixing part 21 onto the horizontal plane extends obliquely from the end where the moving contact 211 is located towards the middle of the relay. The moving contact fixing part 21 forms an angle with the Y-axis, that is, the extending directions of the stationary spring lead-out part 12 and the moving contact fixing part 21 form a certain angle. In this example, see [reference needed]. Figure 8 As shown, the moving contact 211 and the stationary contact 111 are two sets, and these two sets of contacts are arranged in parallel. A moving contact fixing part 21 is provided on each side of the stationary contact lead-out part 12. Thus, the projections of the stationary spring lead-out part 12, the stationary contact fixing part 11, and the moving contact fixing part 21 on the horizontal plane form an "E"-shaped layout. The stationary spring lead-out part 12 is arranged by fully utilizing the space between the two moving contact fixing parts 21, ensuring sufficient electrical clearance between the moving contact fixing part 21 and the stationary spring lead-out part 12 to prevent electrical breakdown. In other embodiments, see [reference needed]. Figure 9As shown, there is only one set of moving contact 211 and stationary contact 111. The moving contact fixing part 21 is located on one side of the stationary contact lead-out part 12, so that the projections of the stationary spring lead-out part 12, the stationary contact fixing part 11, and the moving contact fixing part 21 on the horizontal plane form a U-shaped layout, providing sufficient electrical clearance between the moving contact fixing part 21 and the stationary spring lead-out part 12 to prevent electrical breakdown. Alternatively, when the moving contact fixing part 21 is located on one side of the stationary contact lead-out part 12, more than one set of contacts can be provided. The stationary spring lead-out part 12 is located within the inner angle region formed by the projections of the stationary contact fixing part 11 and the moving contact fixing part 21 on the horizontal plane, and extends the stationary spring lead-out part 12 in the height direction to form a pin outside the base 3. By utilizing this inner angle region and the height space of the relay, the layout of the moving spring assembly and the stationary spring assembly is more compact, which is beneficial for the miniaturization of the relay.

[0047] Furthermore, the projection of the moving contact fixing part 21 on the horizontal plane extends obliquely from the end where the moving contact 211 is located toward the middle of the relay, and the moving spring lead-out part 12 is provided at the end where the moving contact 211 is located of the moving contact fixing part 21. Therefore, the creepage distance between the two moving contact fixing parts 21 and the moving spring lead-out part 12 can be increased. On the other hand, a clearance space can be formed on the outside of the two moving contact fixing parts 21 so as to install the coil lead-out part 7 on the outside of the moving contact fixing part 21, which is beneficial to product miniaturization.

[0048] See Figure 5 , Figure 10 and Figure 11 As shown, the stationary spring lead-out 1 is formed by integral bending and also includes a bent portion 13 formed between the contact fixing portion 11 and the stationary spring lead-out portion 12. The position of the stationary contact 111 on the stationary contact fixing portion 11 should be such that the electrical clearances L1 and L2 between the moving spring 2 and the stationary spring lead-out 1 are much larger than the contact clearance, where L1 is the electrical clearance between the moving spring 2 and the stationary spring lead-out portion 12, and L2 is the electrical clearance between the moving spring 2 and the bent portion 13. The integral bending of the stationary spring lead-out 1 simplifies its manufacturing and allows for greater strength with a simpler structure.

[0049] See Figures 3 to 7 , Figure 10 and Figure 11As shown, the moving spring armature component 100 also includes a moving spring lead-out 6 electrically connected to the moving contact 211. The moving spring lead-out 6 includes a moving contact connecting portion 61 and a moving spring lead-out portion 62 extending out of the base 3 to serve as a moving spring pin. The moving contact connecting portion 61 is connected to the moving contact 211 via a flexible conductor 60, thereby forming an electrical connection between the moving spring lead-out 6 and the moving contact 211. The moving spring lead-out portion 62 and the stationary spring lead-out portion 12 are arranged opposite to each other at both ends of the base 3 along the Y-axis direction, and the bent portion 13 and the moving spring lead-out portion 62 are arranged opposite to each other on both sides of the stationary contact fixing portion 11 along the Y-axis direction. The flexible conductor 60 includes two conductive portions extending along the Y-axis direction. The conductive portions are specifically provided corresponding to the moving contact fixing portion 21 and coincide with the projection of the moving contact fixing portion 21 on the horizontal plane, so that no additional space is occupied in the horizontal plane direction, and the electrical clearance between the two conductive portions of the flexible conductor 60 and the stationary spring lead-out portion 12 is also guaranteed.

[0050] In this example, the stationary spring lead-out portion 12 bends inward from the bent portion 13 located at the edge of the base 3 toward the center of the base 3, thus utilizing the space in the center of the base 3 to arrange the stationary spring pins. This makes the layout of the stationary spring lead-out portion on the base more reasonable and facilitates further miniaturization of the relay. The junction of the stationary spring lead-out portion 12 and the bent portion 13 is located in the center of the bottom in the X-axis direction, and the stationary spring lead-out portion 12 extends from the bent portion 13 in a direction perpendicular to the edge of the base, that is, along the Y-axis direction. This leaves sufficient space on both sides to arrange the contacts and makes full use of the base space. The flexible conductor 60 is a U-shaped copper braided wire, thus forming a soft connection between the moving spring lead-out portion 6 and the moving contact 211. This ensures a more reliable electrical connection between the moving contact 211 and the moving spring lead-out portion 6 when the moving contact 211 is activated, and also makes the layout of the moving spring lead-out portion 6 more flexible. Since the stationary spring lead-out portion 12 is arranged in the aforementioned inner angle region, and the stationary spring lead-out portion 12 extends along the Y-axis direction, while the moving spring fixing portion 21 may extend along the Y-axis direction or have a certain angle with the Y-axis, the stationary spring lead-out portion 12 and the flexible conductor 60 partially overlap in the Y-axis direction. Based on this, the two conductive portions of the flexible conductor 60 can make the position of the moving spring lead-out portion 6 more flexible while ensuring a reliable electrical connection between the moving spring lead-out portion 6 and the moving contact 211. This allows the moving spring lead-out portion 6 to be arranged further away from the stationary spring lead-out portion 12, increasing the distance between the stationary spring lead-out portion 1 and the moving spring lead-out portion 6, and ensuring that the electrical clearance between the stationary spring lead-out portion 1 and the moving spring lead-out portion 6 is sufficiently large. If the moving spring lead-out 6 and the moving contact 211 are connected by a rigid electrical connection, it is possible that the moving spring lead-out 6 is set on the moving contact 211 and directly connected to the moving contact 211. This would result in the distance between the stationary spring lead-out 1 and the moving spring lead-out 6 being too small, and the creepage distance between them being insufficient. Alternatively, it is possible that the distance between the moving spring lead-out 6 and the moving contact 211 is too large, and since the moving contact 211 is movable, the rigid connection makes the connection between the moving spring lead-out 6 and the moving contact 211 unreliable.

[0051] In the above embodiments, the flexible conductor 60 is an integral U-shaped structure. In other embodiments, the flexible conductor 60 can also be a split structure, that is, it includes two flexible conductive connectors, each of which forms a conductive part.

[0052] The moving spring lead-out portion 62 is perpendicular to the stationary spring lead-out portion 12. Since the stationary spring lead-out portion 12 is bent inward and occupies part of the space in the middle of the base 3, setting the moving spring lead-out portion 62 to be perpendicular to the stationary spring lead-out portion 12 can reduce the space occupied by the moving spring lead-out portion 62 in the Y-axis direction. This is beneficial to reduce the size of the relay while ensuring the distance between the moving spring lead-out portion 62 and the stationary spring lead-out portion 12.

[0053] See Figures 3 to 7As shown, the coil assembly 200 also includes two coil lead-out parts 7 with coil lead-out portions 71. The two coil lead-out portions 71 are spaced apart on both sides of the stationary spring lead-out portion 12 in the X-axis direction, and the two coil lead-out portions 71 are arranged opposite each other. Thus, the moving spring lead-out portion 62, the stationary spring lead-out portion 12, and the coil lead-out portions 71 are respectively arranged near the four sides of the base 3, forming a four-point arrangement. This four-point arrangement means that the moving spring lead-out portion 62, the stationary spring lead-out portion 12, and each coil lead-out portion 71 are each abstracted as a point, and these four points are arranged near the four sides of the base 3, forming four non-collinear points. This arrangement can fully utilize the space of the base 3, arranging the moving spring lead-out portion 62, the stationary spring lead-out portion 12, and the coil lead-out portion 71, which have spacing requirements, along the four sides of the base 3, which helps to reduce the size of the base 3 while ensuring the spacing.

[0054] The coil lead 7 is provided at the end of the moving contact fixing part 21 away from the moving contact 211, and both moving contact fixing parts 21 extend between the two spaced coil lead 7. Therefore, in the X-axis direction, mounting space for mounting the coil lead 7 can be formed on both sides of the two moving contact fixing parts 21, which optimizes the layout of the relay and helps to form the above-mentioned four-point arrangement.

[0055] In this example, the movable spring 2, the movable spring lead-out 6, the flexible conductor 60, and the movable contact form a movable spring assembly. In other embodiments, the movable spring 2 and the movable spring lead-out 6 can also be an integral structure, so that the electrical connection between the movable contact 211 and the movable spring lead-out 61 can be achieved by the movable spring 2, or the movable spring lead-out 6 can be directly connected to the movable spring 2, and the electrical connection between the contact 211 and the movable spring lead-out 61 can also be achieved by the movable spring 2.

[0056] In this example, the integrally bent stationary spring lead-out and the stationary contact 111 constitute the stationary spring assembly, and the integrally bent stationary spring lead-out 2 makes the stationary contact fixing part 21 and the stationary spring lead-out part 22 integrally connected. In other embodiments, the stationary contact fixing part and the stationary spring lead-out part can be separately formed conductive parts, and then fixedly connected by welding or riveting to achieve electrical connection.

[0057] See Figure 4 , Figure 12 and Figure 13As shown, the moving spring armature component 100 also includes an armature 8 connected to the moving spring 2. The armature 8 is configured to drive the moving spring 2 to move under the magnetic attraction of the coil assembly 200, thereby causing the moving contact 211 to close or open relative to the stationary contact 111. In order to ensure that the armature 8 does not move too far away from the coil assembly 200 when it is far away from the coil assembly 200, thus affecting the next closing, a stop mechanism is provided on the side of the armature 8 away from the coil assembly 200. The stop mechanism forms a stop limit on the armature 8 by abutting against the armature 8, thereby preventing the armature 8 from moving too far away from the coil assembly 200. The stop mechanism is located inside the area enclosed by the four points arranged by the moving spring lead-out part 62, the stationary spring lead-out part 12, and the coil lead-out part 71. In this example, the stopping mechanism is a metal positioning member 9 disposed on the base 3. The metal positioning member 9 includes an insertion part 91 inserted into the base 3 and an abutment part 92 protruding from the base 3 and extending toward the armature 8. Thus, the metal positioning member 9 abuts against the armature 8 through the abutment part 92. The metal positioning member 9 is located between the two conductive parts of the flexible conductor 60 and is spaced apart from the two conductive parts to avoid interference between the metal positioning member 9 and the conductive parts when the armature 8 and the moving spring 2 move.

[0058] Since the moving spring lead-out portion 62, the stationary spring lead-out portion 12, and the coil lead-out portion 71 are arranged near the four sides of the base 3, the space in the middle of the base 3 is used to arrange the metal positioning member 9, making the layout of the metal positioning member 9 more reasonable. The metal positioning member 9 is fixed to the base 3 by insertion, which is simple and reliable, and facilitates the selection of metal positioning members 9 of different specifications and sizes according to the changes in the electrical parameters of the relay. In addition to the metal positioning member 9 inserted in the middle of the base 3 to form a stop mechanism, in other embodiments, the stop mechanism can also be formed by a protrusion extending from the middle of the base 3 toward the armature 8.

[0059] See Figure 11 and Figure 13 As shown, the stationary contact 111 on the stationary spring lead-out member 1 is located on the side of the stationary contact fixing part 11 facing the stationary spring lead-out part 12. Therefore, the moving contact 211 and the moving contact fixing part 21 are also located on the side of the stationary contact fixing part 11 facing the stationary spring lead-out part 12. Since the stationary contact fixing part 11 is fixedly mounted on the coil frame 5, and the stationary spring lead-out part 12 extends away from the coil frame 5 (towards the base) relative to the stationary contact fixing part 11, the moving contact 211 is located on the side of the stationary contact fixing part 11 away from the coil frame 5. When the moving contact 211 closes or opens relative to the stationary contact 111 under the action of the armature 8, it utilizes the extension space of the stationary spring lead-out part 12. Therefore, the movement of the moving contact 211 does not occupy additional space in the Z-axis direction, allowing sufficient winding space to be reserved for the coil frame 5, thereby increasing the magnetic field strength of the coil under the same current.

[0060] Since the moving contact fixing part 21 is located on both sides of the stationary spring lead-out part 12, the armature 8, which drives the moving contact fixing part 21, spans across the two moving contact fixing parts 21. In the X-axis direction, the armature 8 crosses the stationary spring lead-out part 12. To make the relay structure layout more compact, the armature 8 extends into the inner angle region and is spaced apart from the stationary contact fixing part 11 in the height direction. To prevent the armature 8 from being too close to the stationary spring lead-out part 1 or even interfering with it during operation, the armature 8 and the stationary contact fixing part 11 are offset in the Y-axis direction, and a clearance notch 121 is provided in the stationary spring lead-out part 12 to allow the armature 8 to move. The clearance notch 121 in the stationary spring lead-out part 12 can also increase the distance between the stationary spring lead-out part 12 and the armature 8, ensuring the electrical clearance between them, thereby preventing electrical breakdown between the armature 8 and the stationary spring lead-out part 12. To achieve the purpose of yielding, the yielding notch 121 should be provided at a position near the armature 8 of the stationary spring lead-out portion 12, that is, at the corner of the stationary spring lead-out portion 12 with an angled notch. The position of the yielding notch 121 is at the corner of the stationary spring lead-out member 1, and does not affect the current carrying capacity of the stationary spring lead-out member 2. In other embodiments, the yielding notch 121 can also be an arc-shaped notch provided at the corner of the stationary spring lead-out portion 12.

[0061] See Figure 13 and Figure 14As shown, the coil lead 7 is mounted on the coil frame 5. The coil frame 5 has a mounting slot 510 for mounting the coil lead 7. Both ends of the coil lead 7 extend beyond the mounting slot 510, with one end forming a coil connection portion 72 and the other end extending out of the base 3 to form a coil lead portion 71. Mounting the coil lead 7 on the coil frame 5 simplifies the structure of the housing 4 and allows for less space occupied by the coil lead 7 within the space of the coil frame 5, which is beneficial for a compact relay layout. Furthermore, since the stationary contact fixing part 11 of the stationary spring lead-out member 1 is set on the coil frame 5, and the base 3 and the coil frame 5 are set opposite to each other on both sides of the stationary contact fixing part 11, the closing and opening of the moving contact 211 and the stationary contact 111 is carried out between the base 3 and the coil frame 5. However, a part of the coil lead-out member 7 will pass through the space between the base 3 and the coil frame 5. Therefore, the metal spatter generated by the closing and opening of the moving contact 211 and the stationary contact 111 may splash near the coil lead-out member 5, specifically near the part of the coil lead-out member 5 located between the base 3 and the coil frame 5. This reduces the creepage distance between the coil lead-out member 5 and the moving contact 211 and the stationary contact 111, leading to electrical breakdown. To prevent this phenomenon, the coil frame 5 is provided with a mounting portion 51 extending to the base 3, and the end of the mounting portion 51 is embedded in the through hole of the base 3. The mounting portion 51 is provided with a mounting through groove 510, so that the side wall of the mounting portion 51 forms a physical isolation between the coil lead-out component to improve the creepage distance and prevent the coil lead-out component from forming an electrical connection with the current-carrying circuit. Here, the current-carrying circuit refers to the armature, the iron core, and the conductive components that form a circuit between the stationary spring lead-out component and the moving spring lead-out component (the conductive components include, but are not limited to, the stationary spring lead-out component, the stationary contact, the moving contact, the flexible conductor, and the moving spring lead-out component).

[0062] See Figure 14 As shown, the coil lead-out part 7, mounted on the coil holder 5, occupies some of the coil winding space. To ensure sufficient winding space, the coil lead-out part 7 is shaped like a Z, making the coil connection part 72 farther from the central axis of the coil holder 5 relative to the coil lead-out part 71, thereby increasing the winding space between the two coil connection parts 72. Furthermore, since the coil connection part 72 extends beyond the mounting slot 510 into the coil winding area, its mounting on the coil holder 5 can affect winding. This can be overcome by bending the coil connection part 72 outwards to avoid the winding space before winding.

[0063] The number of moving contacts 211 and stationary contacts 111 is not limited to one or two sets in the above embodiments, and multiple sets can be provided on both sides of the stationary spring lead-out portion as needed.

[0064] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A relay comprising a static spring assembly, a dynamic spring assembly, and a base, the static spring assembly being provided with a static contact, the dynamic spring assembly being provided with a dynamic contact corresponding to the static contact, characterized in that: The static spring assembly comprises a static contact fixing part for fixing the static contact and a static spring leading part for leading the connection, the dynamic spring assembly comprises a dynamic contact fixing part for fixing the dynamic contact, the dynamic contact fixing part and the static contact fixing part are spaced apart in space to have a contact gap between the dynamic contact and the static contact, the dynamic contact fixing part and the static contact fixing part are defined as height direction in the direction of forming the spatial interval, the extension plane of the static contact fixing part is a horizontal plane, the projection of the dynamic contact fixing part and the static contact fixing part on the horizontal plane forms an inner included angle area, the static spring leading part extends towards the height direction and leads out from the base to the outside, and the pins at the end of the static spring leading part are distributed within the range of the inner included angle area.

2. A relay according to claim 1, characterized in that: The dynamic spring assembly comprises two spaced apart dynamic contact fixing parts, the dynamic contact fixing parts extend towards the direction of the static contact fixing part, and the static spring leading part is arranged between the two dynamic contact fixing parts.

3. A relay according to claim 2, characterized in that: The static spring assembly comprises a bent static spring leading part, the static spring leading part and the contact fixing part are formed integrally, and the static spring leading part further comprises a bending part formed between the contact fixing part and the static spring leading part.

4. A relay according to claim 3, characterized in that: The junction of the static spring leading part and the bending part is located at the middle of the bottom edge, and the static spring leading part extends from the bending part along a direction perpendicular to the edge of the base.

5. A relay according to claim 2, characterized in that: The projection of the dynamic contact fixing part and the static contact fixing part on the horizontal plane forms two acute included angles, so that the inner included angle area is an inner included angle area formed by the two acute included angles, and the static spring leading part extends along a direction perpendicular to the static contact fixing part.

6. A relay according to claim 5, characterized in that: Further comprising two spaced apart coil leading parts, the coil leading parts are arranged at the end of the dynamic contact fixing part away from the dynamic contact, and the two dynamic contact fixing parts extend to between the two spaced apart coil leading parts.

7. A relay according to claim 2, characterized in that: The dynamic spring assembly comprises a dynamic spring leading part, the dynamic spring leading part is electrically connected to the dynamic contact through a flexible conductive body, the flexible conductive body comprises two conductive parts extending in the same direction as the dynamic contact fixing part, each conductive part corresponds to a dynamic contact fixing part, and each conductive part is connected to a dynamic contact and the dynamic spring leading part.

8. A relay according to claim 2, characterized in that: Further comprising an armature connected to the dynamic spring assembly, in the height direction, the armature is located on the side of the static contact fixing part facing the static spring leading part and has an interval with the static contact fixing part, the extension direction of the static spring leading part on the horizontal plane is defined as Y-axis direction, in the Y-axis direction, a part of the armature extends into the inner included angle area and is arranged in a staggered manner with the static contact fixing part, and the static spring leading part is provided with a gap to form a movement gap for the armature.

9. A relay according to claim 1, characterized in that: The moving spring assembly further comprises a moving spring lead-out part electrically connected to the moving contact for leading out connection, the moving spring lead-out part extends towards the height direction and goes out of the base to the outside, the extension direction of the static spring lead-out part on the horizontal plane is defined as the Y-axis direction, the direction perpendicular to the Y-axis on the horizontal plane is defined as the X-axis direction, the moving contact lead-out part and the static spring lead-out part are oppositely arranged at the two ends of the base along the Y-axis direction.

10. A relay according to claim 9, characterized in that: The projection of the moving contact fixing part on the horizontal plane extends towards the direction where the static contact fixing part is located, and the moving spring lead-out part is perpendicular to the static spring lead-out part.

11. A relay according to claim 9, characterized in that: Further comprising two coil lead-out parts, the two coil lead-out parts are arranged on the two sides of the static spring lead-out part in the X-axis direction, and the two coil lead-out parts are oppositely arranged, so that the moving contact lead-out part, the static spring lead-out part and the coil lead-out part are arranged along the four edges of the base to form a four-point arrangement.

12. A relay according to claim 11, characterized in that: Further comprising a coil assembly and an armature connected to the moving spring assembly, the armature is configured to act under the action of the coil assembly, the armature drives the moving contact to close or open relative to the static contact, a stop mechanism is arranged on the side of the armature away from the coil assembly, the stop mechanism forms a stop position for the armature by abutting against the armature, and the stop mechanism is located inside the area enclosed by the four-point arrangement.

13. A relay according to claim 12, characterized in that: The coil assembly and the base are oppositely arranged on the two sides of the armature, the stop mechanism is a metal positioning part arranged on the base, the metal positioning part comprises a plug-in part inserted into the base and an abutting part protruding from the base and extending towards the direction where the armature is located, so that the metal positioning part forms abutment with the armature through the abutting part.

14. The relay of claim 1, wherein: Further comprising a coil holder, the static contact fixing part is arranged on the coil holder, the static spring lead-out part extends away from the static contact fixing part, and the static contact is arranged on the side of the static contact fixing part facing the static spring lead-out part.

15. A relay according to claim 14, characterized in that: The coil holder is connected with a coil lead-out part, the coil holder is provided with a mounting through slot for mounting the coil lead-out part, one end of the coil lead-out part beyond one end of the mounting through slot forms a coil connecting part, and the other end beyond the other end of the mounting through slot and extending out of the base forms a coil lead-out part.

16. A relay according to claim 15, characterized in that: The static contact fixing part is arranged on the coil holder, the base and the coil holder are oppositely arranged on the two sides of the static contact fixing part, the coil holder is provided with a mounting part extending and embedded into the through hole of the base, the mounting part is provided with the mounting through slot, and the side wall of the mounting part forms a separation baffle to separate the coil lead-out part.

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