Relay

Abstract

The invention 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 invention, the static spring lead-out part is arranged in the inner included angle area formed by the projection 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 the pin, so that the layout of the movable spring assembly and the static spring assembly is more compact by using 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 present application relates to the field of switching electrical technology, in particular to a relay. BACKGROUND

[0002] In order to ensure the dielectric withstand voltage of the relay, the pins of the relay are usually arranged far apart, specifically at the two ends of the same side (for example, the base) of the relay, which leads to an increase in the size of the relay, and the installation space left for the relay by the client is limited, so it is difficult to install such a large-size relay, and higher requirements are put forward for the miniaturization of the relay. SUMMARY

[0003] The purpose of the present application is to provide a relay with a compact structure to meet the requirements of relay miniaturization.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is 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 fixedly arranging 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 fixedly arranging 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 included angle region, the static spring lead-out part extends towards the height direction and passes out from 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 included 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 and formed 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 on the horizontal plane form two acute angles, so that the inner angle area is an inner angle area formed by the two acute angles, and the stationary spring leading part extends along a direction perpendicular to the stationary contact fixing part.

[0009] In one embodiment, two spaced coil leading parts are further included, which are arranged at the ends of the moving contact fixing part away from the moving contacts, and both of the moving contact fixing parts extend to between the two spaced coil leading parts.

[0010] In one embodiment, the moving spring assembly includes a moving spring leading part electrically connected to the moving contacts through a flexible conductive body, the flexible conductive body includes two conductive parts extending in the same direction as the moving contact fixing part, each of the conductive parts is arranged corresponding to one of the moving contact fixing parts, and each of the conductive parts is connected to one of the moving contacts and the moving spring leading part.

[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 part facing the stationary spring leading part and has a space with the stationary contact fixing part, the extending direction of the stationary spring leading part on the horizontal plane is defined as the Y-axis direction, in the Y-axis direction, a part of the armature extends into the inner angle area and is arranged in a staggered manner with the stationary contact fixing part, and the stationary spring leading part is provided with a gap to form a movement gap for the armature.

[0012] In one embodiment, the moving spring assembly further includes a moving spring leading part electrically connected to the moving contacts for leading connection, the moving spring leading part extends towards the height direction and penetrates out of the base to the outside, the extending direction of the stationary spring leading part 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 leading part and the stationary spring leading part are arranged at opposite 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 towards the direction where the stationary contact fixing part is located, and the moving spring leading part and the stationary spring leading part are perpendicular to each other.

[0014] In one embodiment, two coil leading parts provided with coil leading parts are further included, the two coil leading parts are arranged on both sides of the stationary spring leading part in the X-axis direction, and the two coil leading parts are arranged oppositely, so that the moving contact leading part, the stationary spring leading part and the coil leading part are arranged along the four sides of the base to form a four-point arrangement.

[0015] In one embodiment, a coil assembly and an armature connected to the moving spring assembly are further included, 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 stationary 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 the armature, and the stop mechanism is located inside the area enclosed by the four-point arrangement.

[0016] In one embodiment, the coil assembly and the base are arranged on both sides of the armature, the stop mechanism is a metal positioning piece arranged on the base, the metal positioning piece includes a plug-in part plugged into the base and an abutting part protruding from the base and extending towards the armature, so that the metal positioning piece forms abutment with the armature through the abutting part.

[0017] In one embodiment, a coil holder is further included, the stationary contact fixing part is arranged on the coil holder, the stationary spring lead-out part extends in a direction away from the coil holder relative to the stationary contact fixing part, and the stationary contact is arranged on the side of the stationary contact fixing part facing the stationary spring lead-out part.

[0018] In one embodiment, a coil lead-out piece is connected to the coil holder, the coil holder is provided with a mounting through slot for mounting the coil lead-out piece, one end of the coil lead-out piece 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.

[0019] In one embodiment, the stationary contact fixing part is arranged on the coil holder, the base is arranged on both sides of the stationary contact fixing part opposite to the coil holder, 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 an isolation baffle to isolate the coil lead-out piece.

[0020] The present application has the following advantages:

[0021] 1. The stationary spring lead-out part is arranged in the inner included angle region formed by the horizontal projection of the stationary contact fixing part and the moving contact fixing part, and the stationary spring lead-out part extends in the height direction to form a lead-out part outside the base, so that the layout of the moving spring assembly and the stationary spring assembly is more compact by using the inner included angle region and the height space of the relay, which is beneficial to the miniaturization of the relay.

[0022] 2. When two sets of moving and static contacts are provided, the static spring leading part is arranged between the two moving contact fixing parts, and the projection of the static spring leading part and the moving contact fixing part on the horizontal plane extends in the same direction, so that the projection of the static spring leading part, the static contact fixing part and the moving contact fixing part on the horizontal plane forms a layout similar to the "E" letter, the space between the two moving contact fixing parts is fully utilized to arrange the static spring leading part, and sufficient electrical clearance is provided between the moving contact fixing part and the static spring leading part to prevent electrical breakdown.

[0023] 3. The "E" layout makes the static spring leading part and the moving contact fixing part at least partially coincide in the extension direction of the moving contact fixing part, reduces the space occupied in this direction, and further promotes the miniaturization of the relay.

[0024] 4. The flexible conductor between the moving contact and the moving spring leading part makes the position of the moving spring leading part relative to the moving contact more flexible, so that the moving spring leading part can be arranged away from the static spring leading part, so that the two are arranged at the two ends of the base, and the size of the base is fully utilized to increase the distance between the moving spring leading part and the static spring leading part; and the conductive part corresponding to the moving spring leading part can ensure the distance between the flexible conductor and the static spring leading part, and ensure the electrical safety of the relay.

[0025] 5. The moving spring leading part, the static spring leading part and the coil leading part are arranged along the four edges of the base to form a quadrilateral layout, fully utilizing the size of the base, and ensuring sufficient electrical clearance between the leading parts on the basis of miniaturization of the relay.

[0026] 6. The moving spring leading part and the static spring leading part are arranged perpendicular to each other, and the metal positioning member for stopping and limiting is arranged in the middle part, which can utilize the space in the middle part of the base to reduce the size of the product, and insert the metal positioning member into the base to reduce the installation space, and on the basis of meeting the miniaturization of the relay, the creepage distance between the conductive parts (including but not limited to the static spring leading part, the coil and the metal positioning member) can also be ensured, and the withstand voltage performance of the relay is improved.

[0027] 7. The coil leading member is mounted on the coil frame, and the two ends thereof respectively extend beyond the two ends of the mounting slot, and one end thereof further extends out of the base to form a coil leading end, so that the coil frame is used to fix the coil leading member, which is fixed on the shell in the prior art, simplifying the structure of the shell and reducing the size of the relay, which is conducive to the miniaturization of the relay; and the coil leading member is mounted on the coil frame, which will pass through the area where the moving contact and the static contact are located, in order to improve the electrical clearance between the coil leading end and the moving and static contact circuits, the mounting part extends from the coil frame to the base and is embedded into the through hole of the base, so as to form physical isolation of the coil terminal, improve the creepage distance and the withstand voltage performance. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective view of an embodiment of the present invention.

[0029] Figure 2 is an exploded view of an embodiment of the present invention.

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

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

[0032] Figure 5 is a top view of Figure 4 .

[0033] Figure 6 is a perspective view of an embodiment of the present invention, showing the relationship of the moving reed, the armature and the coil assembly.

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

[0035] Figure 8 is a schematic view of the relative positions of the stationary contact fixing portion, the stationary reed lead-out portion and the moving contact fixing portion of an embodiment of the present invention.

[0036] Figure 9 is a schematic view of the relative positions of the stationary contact fixing portion, the stationary reed lead-out portion and the moving contact fixing portion of another embodiment of the present invention.

[0037] Figure 10 is a perspective view of one view of the stationary reed lead-out piece of an embodiment of the present invention.

[0038] Figure 11 is a perspective view of another view of the stationary reed lead-out piece of an embodiment of the present invention.

[0039] Figure 12 is an exploded view of the metal positioning piece and the base of an embodiment of the present invention.

[0040] Figure 13 is an A-A sectional view of Figure 3 .

[0041] Figure 14 is a B-B sectional view of Figure 3 .

[0042] Wherein: 100 moving reed armature component, 200 coil assembly, 300 housing, 400 stationary reed assembly.

[0043] 1 static spring leading piece, 11 static contact fixed part, 111 static contact, 12 static spring leading part, 121 let place gap, 13 bending part, 2 moving spring blade, 21 moving contact fixed part, 211 moving contact, 3 base, 4 shell, 5 coil holder, 51 mounting part, 510 mounting through slot, 6 moving spring leading piece, 60 flexible conductive body, 61 moving contact connecting part, 62 moving spring leading part, 7 coil leading piece, 71 coil leading part, 72 coil connecting part, 8 armature, 9 metal positioning piece, 91 plug-in part, 92 abutting part. DETAILED DESCRIPTION

[0044] To further illustrate the embodiments, the present application provides accompanying drawings. These drawings are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. Those of ordinary skill in the art should be able to understand other possible implementations and advantages of the present application in conjunction with these. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0045] Reference Figures 1 to 7 As shown in the drawings, the present application discloses a relay, which comprises a moving spring armature component 100, a coil assembly 200, a static spring assembly 400 and a shell 300. The moving spring armature component 100 is arranged at one end of the coil assembly and is configured to act under the magnetic attraction of the coil assembly 200 to make the contacts close or break. The shell 300 is used to cover the moving spring armature component 100, the coil assembly 200 and the static spring assembly 400 therein. The moving spring armature component 100 comprises a moving spring assembly and an armature connected to the moving spring assembly. The moving spring assembly, the static spring assembly 400 and the coil assembly 200 are respectively provided with a pin extending out of the shell 300, and the pin comprises a moving spring pin, a static spring pin and a coil pin. The coil assembly 200 comprises a coil holder 5, and the static spring assembly 400 is arranged on the coil holder 5. The static spring assembly 400 comprises a static spring leading piece 1 fixedly connected to the coil holder 5. The moving spring assembly comprises a moving spring blade 2 and a moving spring leading piece 6. The shell 300 comprises a base 3 and a shell 4 covering the base 3. The static spring leading piece 1 comprises a static contact fixed part 11 and a static spring leading part 12 perpendicular to each other. The static contact fixed part 11 of the static spring leading piece 1 is fixedly arranged on the coil holder 5, and the end of the static spring leading part 12 extends out of the base 3 to serve as a static spring pin. The moving spring blade 2 comprises two moving contact fixed parts 21 extending towards the static contact fixed part and arranged at intervals. The end of each moving contact fixed part 21 is provided with a moving contact 211 corresponding to a static contact 111. The direction in which the moving contact fixed part 21 and the static contact fixed part 11 form a space interval is defined as the height direction (i.e. the Z-axis direction). The extension plane in which the static contact fixed part 11 is located is defined as the horizontal plane. The extension direction of the static spring leading part 12 on the horizontal plane is defined as the Y-axis direction. The direction perpendicular to the Y-axis direction on the horizontal plane is defined as the X-axis direction. 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, the moving contact 211 and the stationary contact 111 are only one set, the moving contact fixing part 21 is arranged at one side of the stationary contact leading part 12, so that the projection of the stationary spring leading part 12, the stationary contact fixing part 11 and the moving contact fixing part 21 on the horizontal plane forms a layout similar to "U" type, and the moving contact fixing part 21 and the stationary spring leading part 12 have enough electrical clearance to prevent electrical breakdown. In addition, when the moving contact fixing part 21 is arranged at one side of the stationary contact leading part 12, more than one set of contacts can also be provided. The stationary spring leading part 12 is arranged in the inner angle region formed by the projection of the stationary contact fixing part 11 and the moving contact fixing part 21 on the horizontal plane, and the stationary spring leading part 12 is extended to the outside of the base 3 in the height direction to form a pin, so that the inner angle region and the height space of the relay are used to make the layout of the moving spring assembly and the stationary spring assembly more compact, which is beneficial to the miniaturization of the relay.

[0047] In addition, the projection of the moving contact fixing part 21 on the horizontal plane extends obliquely from one end where the moving contact 211 is located to the middle of the relay, and the moving spring leading part 12 is arranged at one end of the moving contact fixing part 21 where the moving contact 211 is located, so that the creepage distance between the two moving contact fixing parts 21 and the moving spring leading part 12 can be increased, and on the other hand, a space can be formed outside the two moving contact fixing parts 21 to facilitate the installation of the coil leading piece 7 outside the moving contact fixing part 21, which is beneficial to the miniaturization of the product.

[0048] As shown in Figure 5 , Figure 10 and Figure 11 , the stationary spring leading piece 1 is integrally bent to form, and further comprises a bending part 13 formed between the contact fixing part 11 and the stationary spring leading part 12. The position of the stationary contact 111 on the stationary contact fixing part 11 should be such that the electrical clearance L1, L2 between the moving spring leaf 2 and the stationary spring leading piece is much larger than the contact gap, wherein L1 is the electrical clearance between the moving spring leaf 2 and the stationary spring leading part 12, and L2 is the electrical clearance between the moving spring leaf 2 and the bending part 13. The stationary spring leading piece 1 is integrally formed by bending, which can make the manufacturing of the stationary spring leading piece 1 simpler, and also can achieve greater strength of the stationary spring leading piece 1 with a simple structure.

[0049] As shown in Figures 3 to 7 , Figure 10 and Figure 11As shown, the moving spring armature part 100 further comprises a moving spring lead 6 electrically connected to the moving contact 211, the moving spring lead 6 comprises a moving contact connecting part 61 and a moving spring lead part 62 extending out of the base 3 for serving as a moving spring lead pin. The moving contact connecting part 61 is connected to the moving contact 211 through a flexible conductive body 60, so as to form the electrical connection between the moving spring lead 6 and the moving contact 211. The moving spring lead part 62 and the stationary spring lead part 12 are oppositely arranged at two ends of the base 3 along the Y-axis direction, and the bending part 13 and the moving spring lead part 62 are oppositely arranged at two sides of the stationary contact fixing part 11 along the Y-axis direction. The flexible conductive body 60 comprises two conductive parts extending along the Y-axis direction, and the conductive parts are specifically arranged corresponding to the moving contact fixing part 21 and coincide with the projection of the moving contact fixing part 21 on the horizontal plane, so as not to additionally occupy space in the horizontal direction and also to ensure the electrical clearance between the two conductive parts of the flexible conductive body 60 and the stationary spring lead part 12.

[0050] In this example, the static spring leading part 12 is bent from the bending part 13 at the edge of the base 3 towards the middle of the base 3, i.e. inwardly, so as to arrange the static spring leading pin using the space in the middle of the base 3, to make the layout of the static spring leading part on the base more reasonable, and to facilitate further miniaturization of the relay. The junction of the static spring leading part 12 and the bending part 13 is located in the middle of the base in the X-axis direction, and the static spring leading part 12 extends from the bending part 13 in a direction perpendicular to the edge of the base, i.e. in the Y-axis direction, so as to reserve sufficient space on both sides for arranging the contacts and to make full use of the space of the base. The flexible conductive body 60 is a U-shaped copper braid, so as to form a soft connection between the moving spring leading part 6 and the moving contact 211, to ensure more reliable electrical connection between the moving contact 211 and the moving spring leading part 6 when the moving contact 211 is actuated, and to make the layout of the moving spring leading part 6 more flexible. Since the static spring leading part 12 is arranged in the above-mentioned inner angle region, and the static spring leading part 12 extends in the Y-axis direction, while the moving spring fixed part 21 can extend in the Y-axis direction or at an angle with the Y-axis, the static spring leading part 12 and the flexible conductive body 60 partially overlap in the Y-axis direction. On this basis, the two conductive parts of the flexible flexible conductive body 60 can make the position of the moving spring leading part 6 more flexible on the basis of ensuring reliable electrical connection between the moving spring leading part 6 and the moving contact 211, so as to arrange the moving spring leading part 6 further away from the static spring leading part 12, to increase the distance between the static spring leading part 1 and the moving spring leading part 6, and to ensure that the electrical gap between the static spring leading part 1 and the moving spring leading part 6 is large enough. If the moving spring leading part 6 and the moving contact 211 are rigidly connected, it is possible that the moving spring leading part 6 is arranged on the moving contact 211 and directly connected with the moving contact 211, which will result in too small distance between the static spring leading part 1 and the moving spring leading part 6, and insufficient creepage distance between them. It is also possible that the distance between the moving spring leading part 6 and the moving contact 211 is far, and the moving contact 211 is moving, so that the rigid connection between the moving spring leading part 6 and the moving contact 211 is unreliable.

[0051] In the above-mentioned embodiment, the flexible conductive body 60 is a one-piece U-shaped structure. In other embodiments, the flexible conductive body 60 can also be a split structure, i.e. comprising two flexible conductive connecting parts, each of which forms a conductive part.

[0052] The moving spring leading part 62 is perpendicular to the static spring leading part 12. Since the static spring leading part 12 is inwardly bent and occupies part of the space in the middle of the base 3, arranging the moving spring leading part 62 perpendicular to the static spring leading part 12 can reduce the space occupied by the moving spring leading part 62 in the Y-axis direction, and facilitate reduction of the volume of the relay on the basis of ensuring the distance between the moving spring leading part 62 and the static spring leading part 12.

[0053] Referring to Figures 3 to 7As shown, the coil assembly 200 further comprises two coil lead members 7 provided with two coil lead portions 71, the two coil lead portions 71 are arranged at two sides of the static spring lead portion 12 in the X-axis direction and oppositely arranged, so that the moving spring lead portion 62, the static spring lead portion 12 and the coil lead portions 71 are arranged near the four edges of the base 3 respectively, thereby forming a four-point arrangement. The four-point arrangement refers to that the moving spring lead portion 62, the static spring lead portion 12 and each coil lead portion 71 are abstracted as a point, and the four points are arranged near the four edges of the base 3 respectively, thereby forming four points not in a line. This arrangement can make full use of the space of the base 3, and the moving spring lead portion 62, the static spring lead portion 12 and the coil lead portions 71 with spacing requirements are arranged along the four edges of the base 3, which is beneficial to reducing the size of the base 3 while ensuring the spacing.

[0054] The coil lead member 7 is arranged at the end of the moving contact fixed portion 21 away from the moving contact 211, and both moving contact fixed portions 21 extend between the two spaced coil lead members 7, so that mounting spaces for mounting the coil lead members 7 can be formed on both sides of the moving contact fixed portion 21 in the X-axis direction, thereby optimizing the layout of the relay and facilitating the formation of the four-point arrangement.

[0055] In this example, the moving spring sheet 2 and the moving spring lead member 6, the flexible conductive body 60 and the moving contact form a moving spring assembly. In other embodiments, the moving spring sheet 2 and the moving spring lead member 6 can also be an integral structure, so that the electrical connection between the moving contact 211 and the moving spring lead portion 61 can be realized by the moving spring sheet 2, or the moving spring lead member 6 is directly connected to the moving spring sheet 2, and the electrical connection between the moving contact 211 and the moving spring lead portion 61 is also realized by the moving spring sheet 2.

[0056] In this example, the integrally bent and formed static spring lead member and the static contact 111 constitute a static spring assembly, and the integrally bent and formed static spring lead member 2 makes the static contact fixed portion 21 and the static spring lead portion 22 integrally connected. In other embodiments, the static contact fixed portion and the static spring lead portion can be separately formed conductive parts, and then fixedly connected by welding or riveting to realize electrical connection.

[0057] Referring to Figure 4 , Figure 12 and Figure 13As shown, the moving spring armature component 100 further comprises an armature 8 connected to the moving spring leaf 2, the armature 8 is configured to drive the moving spring leaf 2 to act under the magnetic attraction of the coil assembly 200, so as to make the moving contact 211 close or open relative to the static contact 111, in order to ensure that the armature 8 does not excessively move away from the coil assembly 200 in the state of moving away from the coil assembly 200, and does not affect the next closing, a stop mechanism is arranged on the side of the armature 8 away from the coil assembly 200, the stop mechanism forms a stop limit for the armature 8 by abutting against the armature 8, thereby avoiding the armature 8 excessively moving away from the coil assembly 200, and the stop mechanism is located inside the area surrounded by the four-point arrangement of the moving spring leading part 62, the static spring leading part 12 and the coil leading part 71. In this example, the stop mechanism is a metal positioning piece 9 arranged on the base 3, the metal positioning piece 9 includes a plug-in part 91 plugged into the base 3 and an abutting part 92 protruding from the base 3 and extending in the direction towards the armature 8, so that the metal positioning piece 9 forms abutment with the armature 8 through the abutting part 92. The metal positioning piece 9 is located between the two conductive parts of the flexible conductor 60 and is spaced apart from the two conductive parts respectively, avoiding the metal positioning piece 9 from interfering with the conductive parts when the armature 8 and the moving spring leaf 2 act.

[0058] Since the moving spring leading part 62, the static spring leading part 12 and the coil leading part 71 are arranged near the four edges of the base 3, the metal positioning piece 9 is arranged in the space of the middle part of the base 3, making the layout of the metal positioning piece 9 more reasonable. The metal positioning piece 9 is fixed on the base 3 by plug-in, which is simple and reliable, and it is convenient to select metal positioning pieces 9 of different specifications and sizes according to the changes of electrical parameters of the relay. In addition to the metal positioning piece 9 plugged into the middle part of the base 3 forming the stop mechanism, in other embodiments, a protruding column extending from the middle part of the base 3 towards the armature 8 can also form the stop mechanism.

[0059] Referring to Figure 11 and Figure 13 As shown, the static contact 111 on the static spring leading piece 1 is arranged on the side of the static contact fixing part 11 facing the static spring leading part 12, and then the moving contact 211 and the moving contact fixing part 21 are also located on the side of the static contact fixing part 11 facing the static spring leading part 12. Since the static contact fixing part 11 is fixedly arranged on the coil frame 5, and the static spring leading part 12 extends relative to the static contact fixing part 11 in a direction away from the coil frame 5 (towards the direction of the base), the moving contact 211 is located on the side of the static contact fixing part 11 away from the coil frame 5. When the moving contact 211 is closed or opened relative to the static contact 111 under the driving of the armature 8, the extension space of the static spring leading part 12 is utilized, so that the movement of the moving contact 211 does not occupy additional space in the Z-axis direction, and enough winding space can 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 fixed part 21 is arranged on both sides of the static spring leading part 12, the armature 8 which drives the moving contact fixed part 21 moves across the two moving contact fixed parts 21, and in the X-axis direction, the armature 8 crosses the static spring leading part 12. In order to make the structure of the relay more compact, the armature 8 extends into the inner angle area and has a spacing with the static contact fixed part 11 in the height direction. In order to avoid the armature 8 from being too close to the static spring leading part 1 during the movement process and even interfering with it, the armature 8 is arranged in the Y-axis direction with the static contact fixed part 11, and the static spring leading part 12 is provided with a gap 121 to form a movement gap for the armature 8. The static spring leading part 12 is provided with the gap 121, which can also increase the distance between the static spring leading part 12 and the armature 8, ensure the electrical gap between the two, and prevent electrical breakdown between the armature 8 and the static spring leading part 12. In order to achieve the purpose of movement gap, the gap 121 should be arranged at the position of the static spring leading part 12 close to the armature 8, that is, an inclined angle is arranged at the corner of the static spring leading part 12, and the position of the gap 121 is at the corner of the static spring leading part 1, which does not affect the current carrying of the static spring leading part 2. In other embodiments, the gap 121 can also be an arc-shaped gap arranged at the corner of the static spring leading part 12.

[0061] Referring to Figure 13 and Figure 14As shown, the coil lead-out piece 7 is arranged on the coil frame 5, the coil frame 5 is provided with a mounting through slot 510 for mounting the coil lead-out piece 7, and two ends of the coil lead-out piece 7 respectively extend out of the mounting through slot 510, one end of which forms a coil connecting portion 72, and the other end extends out of the base 3 to form a coil lead-out portion 71. Arranging the coil lead-out piece 7 on the coil frame 5 can simplify the structure of the shell 4, and also make the coil lead-out piece 7 occupy less space by utilizing the space of the coil frame 5, which is conducive to the compact layout of the relay. In addition, since the fixed portion 11 of the static contact of the static spring lead-out piece 1 is arranged on the coil frame 5, and the base 3 is arranged opposite to the coil frame 5 on both sides of the fixed portion 11 of the static contact, the closing and breaking of the movable contact 211 and the static contact 111 are carried out between the base 3 and the coil frame 5, and part of the coil lead-out piece 7 will pass through the space between the base 3 and the coil frame 5, so the metal splashes generated by the closing and breaking of the movable contact 211 and the static contact 111 may splash near the coil lead-out piece 5, specifically near the part of the coil lead-out piece 5 between the base 3 and the coil frame 5, thereby reducing the creepage distance between the coil lead-out piece 5 and the movable contact 211 and the static contact 111, and causing electrical breakdown. In order 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 into the through hole of the base 3, and the mounting portion 51 is provided with a mounting through slot 510, so that the side wall of the mounting portion 51 physically isolates the coil lead-out piece to increase the creepage distance and prevent the coil lead-out piece from being electrically connected with the current-carrying circuit. The current-carrying circuit refers to the armature, the iron core, and the conductive components (including but not limited to the static spring lead-out piece, the static contact, the movable contact, the flexible conductive body, and the movable spring lead-out piece) forming a loop between the static spring lead and the movable spring lead.

[0062] Referring to Figure 14 As shown, arranging the coil lead-out piece 7 on the coil frame 5 will occupy the coil winding space to some extent. In order to have sufficient winding space, the coil lead-out piece 7 is arranged in a Z shape, so that the coil connecting portion 72 is farther away from the center axis of the coil frame 5 than the coil lead-out portion 71, thereby increasing the winding space between the two coil connecting portions 72. In addition, since the coil connecting portion 72 extends to the coil winding area beyond the mounting through slot 510, the coil connecting portion 72 will affect the winding after being mounted on the coil frame 5, which can be overcome by bending the coil connecting portion 72 outward to avoid the winding space before winding.

[0063] The number of movable contacts 211 and static contacts 111 is not limited to one group or two groups in the above embodiment, and multiple groups can be arranged on both sides of the static spring lead-out portion as needed.

[0064] While the application has been particularly shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail can be made therein without departing from the spirit and scope of the application as defined by the appended claims.

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 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 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 lead-out part extends towards the height direction and passes out from 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 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 lead-out 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 lead-out part, the static spring lead-out part and the contact fixing part are formed on the static spring lead-out part, so that the static spring lead-out part and the contact fixing part are integrally connected, and the static spring lead-out part further comprises a bending part formed between the contact fixing part and the static spring lead-out part.

4. A relay according to claim 3, characterized in that: 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.

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 lead-out 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 lead-out parts, the coil lead-out 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 lead-out parts.

7. A relay according to claim 2, characterized in that: The dynamic spring assembly comprises a dynamic spring lead-out part, the dynamic spring lead-out 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 lead-out 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 lead-out part and has an interval with the static contact fixing part, the extension direction of the static spring lead-out 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 lead-out 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 extends out of the base to form 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.

Images