A silent relay

Abstract

The present invention discloses a silent relay, which comprises a base, a relay body and a plurality of elastic lead-out terminals. The first ends of the elastic lead-out terminals are respectively electrically connected to corresponding lead-out pins on the relay body; the base is provided with a plurality of mounting grooves corresponding to the plurality of elastic lead-out terminals one by one. Each mounting groove respectively comprises a blind hole part with a closed bottom end and a through hole part that penetrates up and down, and the blind hole part and the through hole part are laterally communicated; the second ends of the elastic lead-out terminals respectively have a laminated structure and a stepped structure distributed along their width directions, or the second ends of the elastic lead-out terminals respectively have a laminated structure, and the laminated structure is provided with a stepped structure; the laminated structure penetrates downward into the through hole part of the corresponding mounting groove, and the stepped structure is fitted into the blind hole part of the corresponding mounting groove. The present invention solves the problems of deformation and skew of the lead-out terminals by improving the strength of the elastic lead-out terminals and vertically and horizontally positioning the elastic lead-out terminals on the base.

Description

Technical Field

[0001] The present invention relates to the field of relays, and in particular to a silent relay. Background Art

[0002] Electromagnetic relays are widely used electronic components, which can be applied to fields such as household appliances, automobiles, industrial control, power systems, and communication devices. When an electromagnetic relay is working, the suction impact of the armature and the closing impact of the moving and static contacts will generate a certain amount of noise. To solve the noise problem, a silent relay has emerged in the prior art, which includes a relay body, a housing, a base, and a plurality of elastic lead-out terminals. The elastic lead-out terminals are welded and fixed to the lead-out pins of the relay body and pass through the base to provide elastic support for the relay body, reducing the vibration during the operation of the relay body to achieve a silent effect.

[0003] Due to the pursuit of miniaturization of the silent relay, the gaps between its elastic lead-out terminals are very small, and the elastic lead-out terminals have a certain degree of flexibility and are prone to deformation. For example, they may be laterally skewed, resulting in a smaller gap between the elastic lead-out terminals, which is likely to cause problems such as short circuit, poor withstand voltage, or reduced flexibility (low noise reduction effect). In the prior art, in order to avoid the deformation of the elastic lead-out terminals, some increase the length of the elastic lead-out terminals to contact the surface of the base and are fixed by clamping the housing and the base; some increase the length of the elastic lead-out terminals to be clamped in the surface groove of the base and then pass through the base; some elastic lead-out terminals include a conductive member and a terminal block, and the lead-out pins in the relay body are connected to the terminal block on the base through the conductive member. To avoid the deformation and skew of the elastic lead-out terminals, a damping material is provided on the base to support the electromagnetic relay body. However, the above methods are not conducive to the miniaturized design of the relay, cannot meet the requirement of a small mounting surface proposed by customers, and are not conducive to automated assembly. Summary of the Invention

[0004] In view of the technical problems existing in the prior art, the present invention provides a silent relay, which solves the problem that the elastic lead-out terminals are prone to deformation without affecting the miniaturized design and automated assembly of the relay.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: A silent relay includes a base, a relay body, and a plurality of elastic lead-out ends. The first ends of the elastic lead-out ends are respectively electrically connected to corresponding lead-out pins on the relay body; a plurality of mounting grooves corresponding to the plurality of elastic lead-out ends are provided on the base. Each mounting groove includes a blind hole portion with a closed bottom end and a through hole portion that penetrates up and down. The blind hole portion and the through hole portion are laterally connected; the second ends of the elastic lead-out ends respectively have a laminated structure and a stepped structure distributed along their width directions, or the second ends of the elastic lead-out ends respectively have a laminated structure, and the laminated structure is provided with a stepped structure; the laminated structure penetrates downward into the through hole portion of the corresponding mounting groove, and the stepped structure is fitted into the blind hole portion of the corresponding mounting groove.

[0006] Further, at least one of the two opposite side surfaces of the mounting groove in its width direction is provided with a convex portion, and the convex portion abuts against the side surface of the laminated structure along the thickness direction of the laminated structure.

[0007] Further, the blind hole portion and the through hole portion are distributed along the length direction of the mounting groove, and the convex portion is located on the side surface of the blind hole portion; the laminated structure includes a wide portion and a narrow portion located below the wide portion, and the narrow portion is adapted to the through hole portion, and the convex portion abuts against the side surface of the wide portion.

[0008] Further, the convex portion includes a first part and a second part distributed along the length direction of the mounting groove, and the first part abuts against the folded part of the laminated structure.

[0009] Further, the convex portions of the plurality of mounting grooves are all located on the side of the corresponding mounting groove away from the relay body, or the convex portions of the plurality of mounting grooves are all located on the side of the corresponding mounting groove close to the relay body; the convex portion is a rib provided along the height direction of the mounting groove.

[0010] Further, the plurality of mounting grooves are divided into two groups, and the two groups of mounting grooves are respectively located at both ends of the base in the width direction, and each group includes at least one mounting groove distributed along the length direction of the base; the mounting groove is formed by a hollow convex platform protruding from the top surface of the base.

[0011] Further, the plurality of elastic lead-out ends are respectively bent once, and the plurality of elastic lead-out ends form a three-sided wrap around the relay body.

[0012] Furthermore, the lead pin of the relay body is located on its first outer side surface, and the relay body has a second outer side surface and a third outer side surface adjacent to the first outer side surface and having an area larger than the first outer side surface; each of the elastic lead ends respectively includes a first lead section having the first end and a second lead section having the second end, and the first lead section of each elastic lead end is respectively located on the side where the first outer side surface is located, the second lead sections of a part of the elastic lead ends are respectively matched on the side where the second outer side surface is located, and the second lead sections of the remaining elastic lead ends are respectively matched on the side where the third outer side surface is located.

[0013] Furthermore, the lead pin of the relay body is located on its first outer side surface, the base includes a first base and a second base, the plurality of mounting grooves are provided on the first base, the first base and the second base are spliced ​​together, and the splicing point of the two is located below the first outer side surface.

[0014] Furthermore, a clearance gap is provided at one end of the first base facing the second base, and the clearance gap is used for avoidance when the elastic lead-out end is electrically connected to the corresponding lead-out pin; an extension portion is provided at one end of the second base facing the first base, and the extension portion blocks the clearance gap.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention adopts the mounting groove with the blind hole part and the through hole part on the base to cooperate with the step structure and the laminated structure of the elastic lead-out terminal. On the one hand, the design of the laminated structure can be used to improve the strength of the elastic lead-out terminal and solve the problem of deformation when the lead-out terminal is pressed into the base. On the other hand, the step structure and the blind hole part can be used to coordinate the elastic lead-out terminal on the base vertically and horizontally, thereby improving the supporting force of the elastic lead-out terminal on the relay body, and preventing the elastic lead-out terminal from being skewed in the horizontal direction, resulting in a smaller gap between the lead-out terminals, causing short circuit or poor withstand voltage or poor flexibility (noise reduction effect), and also avoiding the problem of the elastic lead-out terminal breaking under the action of stress. In particular, the design of the mounting groove and the step structure and the laminated structure of the elastic lead-out terminal does not affect the miniaturization design and automatic assembly of the relay, and the laminated structure of the elastic lead-out terminal can increase the current-carrying cross-sectional area of ​​the elastic lead-out terminal and improve the load capacity of the relay.

[0017] 2. At least one of the two opposite side surfaces of the mounting groove in the width direction is provided with a convex portion, and the convex portion abuts against the side surface of the laminated structure along the thickness direction of the laminated structure, so as to achieve fixed positioning of the laminated structure on the base and reliable positioning in the vertical direction, thereby ensuring that the elastic lead-out terminal will not fall out of the base during the subsequent assembly process, and also improving the rigidity of the elastic lead-out terminal after assembly, thereby preventing the elastic lead-out terminal from being deformed, resulting in a smaller gap between the elastic lead-out terminals, and causing a short circuit or poor withstand voltage.

[0018] 3. The convex part is located on the side of the blind hole part. The laminated structure includes a wide part and a narrow part under the wide part. The narrow part is adapted to the through hole part. The convex part abuts against the side of the wide part, ensuring that the laminated structure penetrates the base smoothly without deformation and without generating plastic chips. The convex part includes a first part and a second part distributed along the length direction of the installation groove. The first part abuts against the folded part of the laminated structure, so that the convex part presses the laminated structure in the thickness direction towards the other side in the width direction of the installation groove, thereby realizing reliable vertical limit of the elastic lead-out end and preventing the elastic lead-out end from deforming and causing the lead-out end gap to become smaller, resulting in short circuit or poor withstand voltage. At the same time, the convex part also restricts the laminated structure from shaking in the length direction of the installation groove and pushes the laminated structure towards the side of the installation groove away from the step structure, thus avoiding the problem of short circuit or poor withstand voltage caused by the movement of the elastic lead-out end along the length direction of the installation groove and ensuring the flexibility of the step structure of the elastic lead-out end and the noise reduction effect.

[0019] 4. The step structure is a single-piece type and is located on one side of the laminated structure, providing a deformation space between the step structure and the blind hole part to ensure the flexibility of the elastic lead-out end and further achieve noise reduction.

[0020] 5. The several installation grooves are divided into two groups, which are respectively located at both ends in the width direction of the base, and each group includes at least two installation grooves distributed along the length direction of the base, ensuring that the center of gravity of the relay body is at the middle position of the support points of the elastic lead-out ends, and the center of gravity of the relay body will not be eccentric, resulting in the problem of skewness of the elastic lead-out ends.

[0021] 6. The several elastic lead-out ends are respectively bent, and the several elastic lead-out ends form a three-sided wrap around the relay body, enabling the several elastic lead-out ends to effectively buffer and attenuate the vibration generated when the relay body operates and releases, thereby improving the noise reduction effect. In particular, the wrapping relationship between the elastic lead-out end and the relay body presents a narrow outer side surface and two large outer side surfaces surrounding, ensuring that the center of gravity of the relay body is at the middle position of the support points of the several lead-out ends, and the center of gravity of the relay body will not be eccentric, resulting in the problem of skewness, ensuring that the relay body is in the correct state; after each elastic lead-out end is bent once, the bending line strengthens the strength of the elastic lead-out end in the vertical direction, so that it can bear a certain weight and play the role of supporting the relay body.

[0022] 7. The lead-out pins of the relay body are located on its first outer side surface. The base includes a first base and a second base, which are spliced and matched, and the splicing part of the two is located below the first outer side surface, enabling the base to be designed in a split manner. When the lead-out pins of the relay body are welded to the elastic lead-out ends, the welding area is completely open, and the manufacturability of the product is good.

[0023] 8. The first base is designed with a relief notch to provide relief for the tooling during subsequent welding or assembly.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, a silent relay of the present invention is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded schematic view of the present invention;

[0026] Figure 2 is a front view of the relay body and the elastic lead-out end of the present invention in a mating state;

[0027] Figure 3 is Figure 2 a partially enlarged schematic view;

[0028] Figure 4 is a top view of the first base of the present invention;

[0029] Figure 5 is Figure 4 a partially enlarged schematic view;

[0030] Figure 6 is Figure 5 a sectional view taken along line A-A;

[0031] Figure 7 is a front view of the relay body, the elastic lead-out end, and the first base of the present invention in a mating state;

[0032] Figure 8 is Figure 7 a sectional view taken along line B-B;

[0033] Figure 9 is Figure 7 a sectional view taken along line C-C;

[0034] Figure 10 is Figure 8 a sectional view taken along line D-D;

[0035] Figure 11 is a structural schematic view of several elastic lead-out ends of the present invention;

[0036] Figure 12 is a three-dimensional structure schematic view of the relay body and the elastic lead-out end of the present invention in a mating state;

[0037] Figure 13 is a rear view of the relay body and the elastic lead-out end of the present invention in a mating state;

[0038] Figure 14It is a schematic structural view of the relay body (including elastic lead-out ends) of the present invention in a split state on the base;

[0039] Figure 15 It is a schematic structural view of the outer shell of the present invention (the open end of the outer shell faces upward);

[0040] Figure 16 It is a side view of the present invention;

[0041] Figure 17 It is an E-E cross-sectional view of the present invention;

[0042] Figure 18 It is Figure 17 an enlarged schematic view of part F in;

[0043] Figure 19 It is Figure 17 an enlarged schematic view of part G in;

[0044] Figure 20 It is a schematic view of the change in the assembled state of the present invention; Specific embodiments

[0045] For the embodiments, please refer to Figures 1 - 20 As shown, a silent relay of the present invention includes a base 10, a relay body 20, a plurality of elastic lead-out ends 30 and an outer shell 40. The first ends of the elastic lead-out ends 30 are respectively electrically connected to the corresponding lead-out pins on the relay body 20. The base 10 is provided with a plurality of mounting grooves 111 corresponding to the plurality of elastic lead-out ends 30 one by one. Each mounting groove 111 includes a blind hole portion 1111 with a closed bottom end and a through hole portion 1112 that penetrates up and down. The blind hole portion 1111 and the through hole portion 1112 are distributed along the length direction of the mounting groove 111, and the blind hole portion 1111 and the through hole portion 1112 are laterally connected. The second ends of the elastic lead-out ends 30 respectively have a laminated structure 31 and a stepped structure 32 distributed along their width direction. Therefore, the stepped structure 32 is a single-piece type and is located on one side of the laminated structure 31. The laminated structure 31 is inserted downward into the through hole portion 1112 of the corresponding mounting groove 111, and the stepped structure 32 is inserted into the blind hole portion 1111 of the corresponding mounting groove 111. The laminated structure 31 is specifically formed by folding the second end of the elastic lead-out end 30 laterally once. Therefore, the laminated structure 31 includes a main body portion coplanar with the stepped structure 32 and a folded portion located on one side in the thickness direction of the main body portion. In other embodiments, the second ends of the elastic lead-out ends respectively have a laminated structure, and a stepped structure is provided at the top of the laminated structure.

[0046] In this embodiment, one of the two opposite side surfaces of the mounting groove 111 in its width direction is provided with a convex portion, and this convex portion abuts against the side surface of the laminated structure 31 along the thickness direction of the laminated structure 31. Specifically, this convex portion abuts against the folded portion of the laminated structure 31. The convex portion is specifically located on the side surface of the blind hole portion 1111. As Figure 3 shown, the laminated structure 31 includes a wide portion 311 and a narrow portion 312 located below the wide portion 311. The narrow portion 312 is adapted to the through hole portion 1112, and the convex portion abuts against the side surface of the wide portion 311. As Figure 8 , Figure 10 shown. The convex portion is specifically a rib 1113 provided along the height direction of the mounting groove 111.

[0047] In this embodiment, the convex portion (i.e., the rib 1113) includes a first portion and a second portion distributed along the length direction of the mounting groove 111. The first portion abuts against the folded portion of the laminated structure 31. Since the convex portion is made of plastic material, when it abuts against the laminated structure, a certain deformation occurs, so that the convex portion and the folded portion of the laminated structure 31 are in interference fit. In this way, the convex portion (i.e., the rib 1113) not only exerts a force F1 on the laminated structure 31 along its thickness direction, but also exerts a force F2 on the laminated structure along the length direction of the mounting groove. As Figure 8 shown, therefore, the convex portion presses the laminated structure along the thickness direction towards the other side surface in the width direction of the mounting groove, thereby realizing reliable vertical limit of the elastic lead-out end, preventing the elastic lead-out end from deforming and causing the lead-out end gap to become smaller, resulting in short circuit or poor withstand voltage; at the same time, the convex portion also restricts the laminated structure from shaking in the length direction of the mounting groove and pushes the laminated structure towards the side of the mounting groove away from the step structure, thereby avoiding the problem of short circuit or poor withstand voltage caused by the elastic lead-out end moving along the length direction of the mounting groove, and ensuring the flexibility of the step structure of the elastic lead-out end and ensuring the noise reduction effect.

[0048] In this embodiment, the convex portions of the plurality of mounting grooves 111 are all located on the side of the corresponding mounting groove away from the relay body. In other embodiments, the convex portions of the plurality of mounting grooves are all located on the side of the corresponding mounting groove close to the relay body. In other embodiments, the two opposite side surfaces of the mounting groove in its width direction are respectively provided with the convex portions. In this embodiment, the plurality of mounting grooves 111 are divided into two groups. These two groups of mounting grooves 111 are respectively located at both ends in the width direction of the base 10, and each group includes at least two (or, alternatively, at least one) mounting grooves 111 distributed along the length direction of the base 10. Specifically, one group includes three mounting grooves 111 with relatively small lengths, and the other group includes two mounting grooves 111 with relatively long lengths. As Figure 4As shown. The installation groove 111 is formed by a hollow boss 113 protruding from the top surface of the base 10. The distribution manner of the installation grooves is not limited to this, and the distribution form of the installation grooves can be set according to actual requirements.

[0049] In this embodiment, the plurality of elastic lead-out ends 30 are respectively bent once, and the plurality of elastic lead-out ends 30 form a three-sided wrap around the relay body 20. Specifically, as Figures 11 - 13 shown, the lead-out pins of the relay body 20 are located on its first outer side 21. The relay body 20 has a second outer side 22 and a third outer side 23 that are adjacent to the first outer side 21 and have an area larger than the first outer side 21. The second outer side 22 and the third outer side 23 face away from each other; each elastic lead-out end 30 respectively includes a first lead-out section 33 having the first end and a second lead-out section 34 having the second end. The first lead-out sections 33 of each elastic lead-out end 30 are respectively located on the side where the first outer side 21 is located. The second lead-out sections 34 of a part of the elastic lead-out ends 30 are respectively fitted on the side where the second outer side 22 is located, and the second lead-out sections 34 of the remaining elastic lead-out ends 30 are respectively fitted on the side where the third outer side 23 is located. The specific number of the plurality of elastic lead-out ends 30 is five. The second lead-out sections 34 of three relatively thin elastic lead-out ends are fitted on the side where the second outer side 22 is located, and the second lead-out sections 34 of the remaining two relatively thick elastic lead-out ends are fitted on the side where the third outer side 23 is located. The number, thickness, and position of the elastic lead-out ends are related to the structure of the relay body. Therefore, the number, thickness, and position of the elastic lead-out ends are not limited to this, and the number, thickness, and position of the elastic lead-out ends can be adjusted accordingly according to the actual situation. For example, the number of elastic lead-out ends can be four; the relatively thin elastic lead-out ends are two; it is not necessary that the relatively thin ones are distributed on one side and the relatively thick ones are distributed on the other side. The thick and thin lead-out ends can also be distributed in a cross manner.

[0050] In this embodiment, as Figure 14 shown, the base 10 includes a first base 11 and a second base 12. The plurality of installation grooves 111 are provided on the first base 11. The first base 11 and the second base 12 are spliced and fitted, and the splicing part of the two is located below the first outer side 21. Specifically, the first outer side 21 of the relay body can slightly protrude from the end of the first base 11 for splicing with the second base 12, or the first outer side 21 of the relay body is roughly aligned with the end of the first base 11 for splicing with the second base 12 up and down.

[0051] In this embodiment, a relief notch 113 is provided at one end of the first base 11 facing the second base 12. This relief notch 113 provides clearance when the elastic lead end 30 is electrically connected (e.g., welded) to the corresponding lead pin; an extension 121 is provided at one end of the second base 12 facing the first base 11, and this extension 121 seals the relief notch 113. The relief notch 113 is specifically an arc-shaped notch, but is not limited thereto. In other embodiments, the relief notch 113 is a square notch, etc. The shape of the extension 121 generally matches the shape of the arc-shaped notch, and the size of the extension 121 is slightly larger than the size of the arc-shaped notch, so that the arc-shaped edge of the extension 121 can rest on the bottom surface of the first base 11.

[0052] In this embodiment, as Figure 15 shown, limiting steps 41 are respectively provided on the inner sides of the four circumferences at the bottom of the housing 40 to limit the first base 11 and the second base 12, so as to control the insertion depth of the first base 11 and the second base 12 in the housing 40. A plurality of clamping platforms 42 are also respectively provided at the bottoms of the opposite two side surfaces of the housing 40 in the width direction. These plurality of clamping platforms 42 are clamped on the side where the bottom surface of the first base 11 is located to limit the first base 11 from detaching from the housing 40.

[0053] In this embodiment, a plurality of support portions 24 protruding from the first outer side surface 21 are provided on the first outer side surface 21 of the relay body 20 to support the first lead segments 33 of the plurality of elastic lead ends 30, so that the first lead segments 33 do not contact the first outer side surface 21. The first lead segments 33 of each elastic lead end 30 do not contact the second base 12, so that the relay body 20 is suspended between the housing 40 and the base.

[0054] For a silent relay of the present invention, during assembly, as Figure 20 shown, first, the relay body 20, five elastic lead ends 30, and the first base 11 are assembled together, and then they are placed into the housing 40, and the first base 11 is limited by the limiting steps and the clamping platforms; then, the second base 12 is placed into the housing 40, and the second base 12 is limited by other limiting steps in the housing 40, and the second base 12 is spliced and cooperated with the first base 11, and the arc-shaped edge of the extension 121 of the second base 12 rests on the bottom surface of the first base 11, thereby sealing the arc-shaped notch of the first base 11; finally, glue is applied between the first base 11, the second base 12, and the housing 40 to further fix the first base 11 and the second base 12 and seal the gap between the first base 11, the second base 12, and the housing 40.

[0055] A silent relay of the present invention uses a mounting groove 111 having the blind hole portion 1111 and the through hole portion 1112 on a base 10 to cooperate with a stepped structure 32 and a laminated structure 31 of an elastic lead-out end 30. On the one hand, the design of the laminated structure 31 can be used to improve the strength of the elastic lead-out end 30 and solve the problem of deformation when the lead-out end is pressed into the base 10. On the other hand, the cooperation of the stepped structure 32 and the blind hole portion 1111 can be used to vertically and horizontally (i.e., in the length direction) position the elastic lead-out end 30 on the base 10, thereby improving the supporting force of the elastic lead-out end 30 on the relay body 20 and preventing problems such as short circuit or poor withstand voltage or poor flexibility (noise reduction effect) caused by the reduction of the gap between the lead-out ends due to the lateral skew of the elastic lead-out end 30, and also avoiding the fracture of the elastic lead-out end 30 under the action of stress. In particular, the design of the mounting groove 111, the stepped structure 32, and the laminated structure 31 of the elastic lead-out end 30 does not affect the miniaturization design and automatic assembly of the relay. Moreover, the laminated structure 31 of the elastic lead-out end 30 can increase the current-carrying cross-sectional area of the elastic lead-out end 30 and improve the load capacity of the relay.

[0056] The side surface of the mounting groove 111 in its thickness direction abuts against the side surface of the laminated structure 31 through the rib 1113, realizing the fixed limit of the laminated structure 31 on the base 10 and the reliable limit in the vertical direction, ensuring that the elastic lead-out end 30 will not come out of the base 10 during the subsequent assembly process, and also preventing the short circuit or poor withstand voltage caused by the reduction of the gap between the elastic lead-out ends 30 due to the deformation of the elastic lead-out end 30. In particular, the convex portion (i.e., the rib 1113) is located on the side surface of the blind hole portion 1111 and cooperates with the wide portion 311 of the laminated structure 31, ensuring that the laminated structure 31 penetrates the base 10 smoothly without deformation and without generating plastic chips.

[0057] The plurality of elastic lead-out ends 30 are respectively bent, and the plurality of elastic lead-out ends 30 form a three-sided wrap around the relay body 20, so that the plurality of elastic lead-out ends 30 can effectively buffer and attenuate the vibration generated when the relay body 20 moves and releases, thereby improving the noise reduction effect. In particular, the wrapping relationship between the elastic lead-out end 30 and the relay body 20 presents a narrow outer side surface and two large outer side surfaces surrounding, ensuring that the center of gravity of the relay body 20 is at the middle position of the support points of the plurality of lead-out ends, and the center of gravity of the relay body 20 will not be eccentric and cause skewing problems, ensuring that the relay body 20 is in the correct state; after each elastic lead-out end 30 is bent once, the bending line strengthens the strength of the elastic lead-out end 30 in the vertical direction, so as to be able to bear a certain weight and realize the function of supporting the relay body 20.

[0058] The base 10 adopts a split design. When the lead-out pins of the relay body 20 are welded to the elastic lead-out terminals 30, the welding area is completely opened, and the manufacturability of the product is good. In particular, the first base 11 is designed with a relief notch 113, which can provide relief for the tooling during subsequent welding or assembly.

[0059] The above embodiments are only used to further illustrate a silent relay of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A silent relay, comprising a base, a relay body and a plurality of elastic lead-out ends, and the first ends of the elastic lead-out ends are respectively electrically connected to corresponding lead-out pins on the relay body; characterized in that: The base is provided with a plurality of mounting grooves corresponding to the plurality of elastic lead-out terminals one by one, each mounting groove comprises a blind hole portion closed at the bottom end and a through hole portion penetrating from top to bottom, the blind hole portion and the through hole portion are laterally connected; the second end of each elastic lead-out terminal has a laminate structure and a step structure distributed along its width direction, or the second end of each elastic lead-out terminal has a laminate structure, and the laminate structure is provided with a step structure; the laminate structure is inserted downward into the through hole portion of the corresponding mounting groove, the step structure is inserted into the blind hole portion of the corresponding mounting groove, and the step structure abuts against the bottom of the mounting groove.

2. The silent relay according to claim 1, wherein: At least one of the two opposite side surfaces of the installation groove in the width direction is provided with a convex portion, and the convex portion abuts against the side surface of the laminate structure along the thickness direction of the laminate structure.

3. The silent relay according to claim 2, wherein: The blind hole portion and the through hole portion are distributed along the length direction of the mounting groove, and the convex portion is located on the side of the blind hole portion; the laminated structure includes a wide portion and a narrow portion located below the wide portion, the narrow portion is adapted to the through hole portion, and the convex portion is against the side of the wide portion.

4. The silent relay according to claim 2 or 3, characterized in that: The protrusion includes a first portion and a second portion distributed along the length direction of the mounting groove, and the first portion abuts against the folded portion of the laminate structure.

5. The silent relay according to claim 2 or 3, characterized in that: The convex portions of the plurality of mounting grooves are all located on a side of the corresponding mounting groove away from the relay body, or the convex portions of the plurality of mounting grooves are all located on a side of the corresponding mounting groove close to the relay body; the convex portions are convex ribs arranged along the height direction of the mounting groove.

6. The silent relay according to claim 1, wherein: The plurality of mounting grooves are divided into two groups, the two groups of mounting grooves are respectively located at the two ends of the base in the width direction, and each group includes at least one mounting groove distributed along the length direction of the base; the mounting groove is formed by a hollow boss protruding from the top surface of the base.

7. The silent relay according to claim 1, wherein: The plurality of elastic lead ends are bent once respectively, and the plurality of elastic lead ends wrap the relay body on three sides.

8. The silent relay according to claim 1 or 7, characterized in that: The lead pin of the relay body is located on its first outer side surface, and the relay body has a second outer side surface and a third outer side surface adjacent to the first outer side surface and having an area larger than the first outer side surface; each of the elastic lead ends respectively includes a first lead section having the first end and a second lead section having the second end, and the first lead section of each elastic lead end is respectively located on the side where the first outer side surface is located, the second lead sections of a part of the elastic lead ends are respectively matched on the side where the second outer side surface is located, and the second lead sections of the remaining elastic lead ends are respectively matched on the side where the third outer side surface is located.

9. The silent relay according to claim 1, characterized in that: The lead pins of the relay body are located on its first outer side surface, the base includes a first base and a second base, the plurality of mounting grooves are arranged on the first base, the first base and the second base are spliced ​​together, and the splicing point of the two is located below the first outer side surface.

10. The silent relay according to claim 9, wherein: An end of the first base facing the second base is provided with a clearance gap, and the clearance gap is used for avoidance when the elastic lead-out end is electrically connected to the corresponding lead-out pin; an end of the second base facing the first base is provided with an extension part, and the extension part blocks the clearance gap.

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