An external wire connecting structure of a relay socket and a direct insertion type relay socket

Abstract

The application discloses an outer wire connecting structure of a relay socket and a direct-inserting type relay socket, and the outer wire connecting structure comprises a base, a leading-out end and a spring sheet, the leading-out end and the spring sheet are arranged in a cavity provided in the base, the leading-out end comprises an inner connecting part and an outer connecting part, the spring sheet is matched with the outer connecting part so as to compress two inserted outer wires to the outer connecting part, and the outer connecting part is integrally formed with a protruding strip, the protruding strip is matched with a gap provided in the spring sheet, and the two inserted outer wires are separated by the protruding strip. The protruding strip can ensure that the two outer wires have independent installation spaces, the outer wires can not slide to the middle gap of the spring sheet when being inserted, the outer wires can not be effectively compressed by the spring sheet, and the connection is not safe due to the mutual interference of the outer wires. Compared with the relay socket provided with the partition plate, the structure and the installation process of the application are simpler, and the cost is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to a relay socket, in particular to an external lead connection structure of a relay socket and a direct insertion type relay socket. BACKGROUND

[0002] The relay socket is an external accessory of a relay, which has an input spring and a lead-out part for connecting external leads (referred to as external leads for short), both of which are connected through internal leads. When installing the relay, only the lead-out feet of the relay need to be inserted into the input spring, so that the connection of the relay and the external leads can be realized. The lead-out part of the relay socket in the prior art generally comprises a lead-out end, a spring sheet and a partition plate, the partition plate is vertically embedded in the spring sheet and the lead-out end, and separates the two inserted external leads. The partition plate is provided, so that the two inserted external leads each have an independent installation space. However, the provision of the partition plate makes the structure and installation process of the relay socket more complex and the cost is higher. In order to save costs, many relay sockets cancel the partition plate. However, when the two external leads close to each other are inserted, they may slip into the middle gap of the spring sheet, so that they cannot be effectively crimped by the spring sheet, and when each external lead is inserted, it is easy to slip into the other external lead, thereby interfering with the electrical connection of the other external lead. SUMMARY

[0003] The present application provides an external lead connection structure of a relay socket and a direct insertion type relay socket, which are simple in structure and low in cost.

[0004] The technical scheme adopted by the present application to solve the technical problems is: an external lead connection structure of a relay socket, comprising a base, a lead-out end and a spring sheet, the lead-out end and the spring sheet are arranged in a cavity provided in the base, the lead-out end comprises an inner connecting part and an outer connecting part, the spring sheet cooperates with the outer connecting part to press the two inserted external leads tightly in the outer connecting part; the outer connecting part is integrally formed with a protruding strip, the protruding strip corresponds to a gap provided in the spring sheet, and separates the two inserted external leads.

[0005] Further, the outer connecting part is a side plate, the bottom end of the side plate is integrally connected with the inner connecting part, and the inner side surface of the side plate is provided with the protruding strip.

[0006] Further, the side plate forms the protruding strip by stamping, or the side plate forms the protruding strip by partially tearing and bending.

[0007] Further, the inner side surface of the side plate is provided with two downward inclined inclined blocks, the two inclined blocks are located on opposite sides of the protruding strip, and the bottom ends of the two inclined blocks are respectively pressed towards the two inserted external leads.

[0008] Further, the top end of the side plate is provided with a limiting part, and the limiting part is clamped into a first limiting groove provided in the side wall of the cavity.

[0009] Further, the limiting part comprises several separate limiting blocks, each of which is respectively bent to the outside of the side plate.

[0010] Further, the inner connecting part is a bottom plate provided with a clamping opening, one end of which is integrally connected with the bottom end of the side plate, and the top surface and / or bottom surface of the other end of the bottom plate is provided with a convex part, the other end of the bottom plate and the convex part are placed into the second limiting groove correspondingly arranged at the bottom of the side wall of the accommodating cavity and are in interference fit.

[0011] Further, the top of the base is provided with a jack set corresponding to the lead-out end and for inserting the two outer conductive wires, and the jack set comprises two wire jacks which are separate from each other and lead to the accommodating cavity.

[0012] Further, the spring sheet is in inverted V shape, one side of which abuts against the side wall of the accommodating cavity, and the other side cooperates with the outer connecting part and is provided with the notch.

[0013] The present application further provides a direct insertion type relay socket, which comprises an input clamping spring, an inner conductive wire, and the outer conductive wire connecting structure of the relay socket as described above, the input clamping spring is arranged in the base and is electrically connected with the inner connecting part of the lead-out end through the inner conductive wire.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. Since the outer connecting part is integrally formed with a convex strip corresponding to the notch of the spring sheet and separates the two inserted outer conductive wires, the present application is free of the need to set a partition plate, which can ensure that the two outer conductive wires have independent installation space, avoid the possibility that the outer conductive wires may slip into the middle notch of the spring sheet when inserted, resulting in ineffective crimping by the spring sheet, and also avoid the insecurity of connection caused by mutual interference of the outer conductive wires. Compared with the relay socket provided with a partition plate, the structure and installation process of the present application are obviously simpler and the cost is lower.

[0016] 2. The convex strip can preferably be formed by tearing and bending process, so that the protruding height of the convex strip is easy to control, ensuring that the protruding height of the convex strip is sufficient and the isolation is good.

[0017] 3. The top end of the side plate is provided with a limiting part which is clamped into the first limiting groove correspondingly arranged at the side wall of the accommodating cavity, which can provide limiting in the transverse direction of the lead-out end, avoid the transverse shaking of the lead-out end, thereby improving the impact resistance of the lead-out end and improving the stability of the work of the present application. In particular, the limiting part comprises several separate limiting blocks, each of which is respectively bent to the outside of the side plate, which not only makes the forming process of the limiting block simpler, but also can avoid the interference of the limiting block to the insertion of the outer conductive wire.

[0018] 4. The protrusion can provide vertical restraint for the lead-out end, preventing vertical swaying of the lead-out end, thereby improving the impact resistance of the lead-out end and improving the stability of the invention.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the external wire connection structure of the relay socket and the direct-insertion relay socket of the present invention are not limited to the embodiments. Attached Figure Description

[0020] Figure 1 This is an exploded view of the external conductor connection structure of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the lead-out end of the present invention;

[0022] Figure 3 This is a cross-sectional view of the lead-out end of the present invention;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the spring sheet of the present invention;

[0024] Figure 5 This is a partially enlarged schematic diagram of the external conductor connection structure of the present invention (including the outer shell in cross-section);

[0025] Figure 6 This is a schematic diagram of the external conductor connection structure of the present invention when the external conductor is first inserted;

[0026] Figure 7 This is a schematic diagram of the external conductor connection structure of the present invention when the external conductor is inserted into place;

[0027] Figure 8 This is an exploded view of the direct-plug relay socket of the present invention;

[0028] Figure 9 This is a front view (excluding the housing) of the direct-plug relay socket of the present invention;

[0029] Figure 10 This is a three-dimensional structural schematic diagram of another lead-out end of the present invention. Detailed Implementation

[0030] For an example, please refer to [link / reference]. Figures 1-7As shown in the drawings, the outer wire connecting structure of the relay socket of the present application comprises a base 1, a lead-out end 2 and a spring sheet 3, the lead-out end 2 and the spring sheet 3 are arranged in a cavity 11 provided in the base 1, the lead-out end 2 comprises an inner connecting part and an outer connecting part, the spring sheet 3 cooperates with the outer connecting part to press the two inserted outer wires tightly on the outer connecting part. A protrusion 211 is integrally formed on the inner side of the outer connecting part, the protrusion 211 corresponds to a notch 31 provided in the middle of the spring sheet 3, and separates the two inserted outer wires. The inner connecting part refers to the part of the lead-out end 2 used for electrically connecting with the input spring of the relay socket, the inner side of the outer connecting part refers to one side of the outer connecting part facing the spring sheet 3, and correspondingly, the other side of the outer connecting part away from the spring sheet 3 is the outer side of the outer connecting part.

[0031] As shown in the drawings, Figure 2 , Figure 3 the outer connecting part is a side plate 21, the bottom end of the side plate 21 is integrally connected with the inner connecting part, and the inner side of the side plate 21 is provided with the protrusion 211. The side plate 21 specifically forms the protrusion 211 by partially tearing and bending, so that the protrusion height h of the protrusion 211 is easy to control, and the protrusion height of the protrusion 211 is sufficient to ensure good isolation. In other embodiments, the side plate 21 forms the protrusion 211 by stamping, as shown in the drawings. Figure 10

[0032] As shown in the drawings, Figure 4 , Figure 5 the spring sheet 3 is approximately inverted V-shaped, one side of the spring sheet 3 abuts against the side wall of the cavity 11, the other side of the spring sheet 3 cooperates with the outer connecting part, and the notch 31 is provided in the middle of the spring sheet 3. The notch 31 provided in the middle of the spring sheet 3 is long strip-shaped, thereby dividing the other side of the spring sheet 3 into two elastic arms. The width C of the protrusion 211 is slightly smaller than the width D of the notch 31 of the spring sheet 3, so that the protrusion 211 can be clamped into the end of the notch 31 of the spring sheet 3. A supporting shaft 13 is provided in the cavity 11, and the bending part of the spring sheet 3 is arc-shaped and passes around the supporting shaft 13.

[0033] In this embodiment, the inner side of the side plate 21 is provided with two downwardly inclined inclined blocks 212, the two inclined blocks 212 are located on the opposite sides of the protrusion 211, and the bottom ends of the two inclined blocks 212 respectively press against the two inserted outer wires, thereby improving the pull-out resistance of the two outer wires.

[0034] In this embodiment, the top end of the side plate 21 is provided with a limiting part, the limiting part is clamped into a first limiting groove 111 provided in the top of the side wall of the cavity 11. Specifically, the limiting part comprises two separate limiting blocks 213, and each limiting block 213 is respectively bent outwards from the side plate 21.

[0035] ​In the embodiment, the inner connecting part is a bottom plate 22 provided with a clamping opening 221, and one end of the bottom plate 22 is integrally connected with the bottom end of the side plate 21, and the other end of the bottom plate 22 is provided with a convex part 222 on the top surface, which is specifically a convex calyx structure, but is not limited thereto. The other end of the bottom plate 22 and the convex part 222 are arranged in the second limiting groove 112 arranged on the other side wall of the accommodating cavity 11 and are in interference fit. The limiting block 213 and the convex part 222 are cooperated to firmly position the lead-out end 2 in the accommodating cavity 11 of the base 1, thereby improving the impact resistance of the lead-out end of the application and improving the stability of the application.

[0036] In the embodiment, the top of the base 1 is provided with a jack set corresponding to the lead-out end 2 and for inserting the two outer conductors, and the jack set includes two conductor jacks 12 which are separate from each other and lead to the accommodating cavity 11. The base 1 is covered with a shell 4 provided with an outer jack 41 corresponding to the conductor jack.

[0037] When the outer conductor 5 (which is a hard conductor or a conductor with a hard sleeve) is inserted, the end of the outer conductor 5 is sequentially inserted from the outer jack 41 of the shell 4 and the conductor jack 12 of the base 1 and enters the accommodating cavity 11 of the base 1, as shown in Figure 6 As the end of the outer conductor 5 continues to move downward, the end of the outer conductor 5 touches the other side of the spring sheet 3 and pushes the other side of the spring sheet 3 to swing downward to form a gap, and after the end of the outer conductor 5 is inserted in place, the other side of the spring sheet 3 is elastically reset and exerts a leftward elastic force F on the outer conductor 5, so that the outer conductor 5 is tightly attached to the side plate 21 of the lead-out end 2, as shown in Figure 7 Thus, the electrical connection between the outer conductor and the lead-out end 2 is achieved. The two inserted outer conductors 5 are separated by the convex strip 211 on the inner side of the side plate 21, which ensures that the two outer conductors 5 have independent installation spaces and avoids the possibility that the outer conductors 5 may slip into the middle gap 31 of the spring sheet 3, resulting in ineffective crimping by the spring sheet 3, and also avoids the insecurity of connection caused by mutual interference of the outer conductors 5. Compared with the relay socket with a partition plate in the prior art, the structure and installation process of the application are obviously simpler and the cost is lower.

[0038] Please refer to Figure 8 , Figure 9 As shown in the drawings, the application is a direct insertion type relay socket, which includes an input clamp spring 6, an inner conductor 7, and the outer conductor connection structure of the relay socket as described above. The input clamp spring 6 is arranged in the base 1 and is electrically connected with the inner connecting part (i.e. the bottom plate 22) of the lead-out end 2 through the inner conductor 7.

[0039] In the embodiment, the inner lead wire 7 is clamped into the clamping opening 221 of the bottom plate 22 and the clamping opening 61 of the input clamping spring 6 at both ends, and is further fixed by a laser welding process, so that welding pollution can be avoided, and the original appearance and properties of the input clamping spring 6 and the lead-out end 2 are well protected.

[0040] In the embodiment, the application further comprises a shell 4 (the shell 4 is the same as the shell 4 shown in the drawings) covering the base 1, and the shell 4 is provided with an external insertion hole 41 corresponding to the lead wire insertion hole 12. Figures 5-7

[0041] In the embodiment, the number of the input clamping spring 6, the inner lead wire 7, the lead-out end 2 and the spring sheet 3 is multiple and one-to-one corresponding.

[0042] The outer lead wire connection structure of the relay socket and the direct insertion type relay socket of the application are the same as the prior art or can be realized by using the prior art.

[0043] The above embodiment is only used to further illustrate the outer lead wire connection structure of the relay socket and the direct insertion type relay socket of the application, but the application is not limited to the embodiment, and any simple modification, equivalent change and modification made according to the technical essence of the application to the above embodiment all fall within the protection scope of the technical scheme of the application.​

Claims

1. An external conductor connection structure for a relay socket, comprising a base, a lead-out end, and a spring plate, wherein the lead-out end and the spring plate are installed in a cavity provided in the base, the lead-out end includes an inner portion and an outer portion, and the spring plate cooperates with the outer portion to press two inserted external conductors tightly against the outer portion; characterized in that: The outer connecting part is integrally formed with a protrusion corresponding to a notch of the spring sheet and separating the two inserted outer conductive wires; The outer connecting part is a side plate, and the inner connecting part is a bottom plate integrally connected to one end of the side plate; the side plate is provided with the protrusion extending along the insertion direction of the outer conductive wire and clamped into the notch of the spring sheet; the spring sheet cooperates with the side plate to make the inserted outer conductive wire closely contact the inner side surface of the side plate; The side plate is provided with a limiting part at the top end, which is clamped into a first limiting groove provided on the side wall of the accommodating cavity, thereby providing limiting in the transverse direction of the leading end.

2. The outer lead connecting structure of a relay socket according to claim 1, characterized by: The side plate is formed with the protrusion by stamping, or the side plate is formed with the protrusion by local tearing and bending.

3. The outer lead connecting structure of a relay socket according to claim 1, characterized by: The inner side surface of the side plate is provided with two downwardly inclined inclined blocks located on opposite sides of the protrusion, and the bottom ends of the two inclined blocks are respectively pressed towards the two inserted outer conductive wires.

4. The outer lead connecting structure of the relay socket according to claim 1, characterized by: The limiting part includes a plurality of discrete limiting blocks, and each limiting block is bent towards the outer side of the side plate.

5. The outer lead connection structure of a relay socket according to any one of claims 1 to 4, characterized in that: The bottom plate is provided with a clamping opening, and the top surface and / or bottom surface of the other end of the bottom plate is provided with a protrusion, the other end of the bottom plate and the protrusion are inserted into a second limiting groove provided on the bottom of the side wall of the accommodating cavity and are in interference fit.

6. The outer lead connecting structure of a relay socket according to claim 1, characterized by: The top of the base is provided with a jack group corresponding to the leading end and for the insertion of the two outer conductive wires, and the jack group includes two conductive wire jacks which are separate from each other and lead to the accommodating cavity.

7. The outer lead connecting structure of a relay socket according to claim 1, characterized by: The spring sheet is in inverted V shape, and one side of the spring sheet abuts against the side wall of the accommodating cavity, and the other side cooperates with the outer connecting part and is provided with the notch.

8. A direct plug-in relay socket comprising an input clip spring, an inner lead wire, characterized by: The outer conductive wire connecting structure of the relay socket also includes the relay socket according to any one of claims 1-7, and an input clamp spring is arranged in the base and is electrically connected to the inner connecting part of the leading end through an inner conductive wire.

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