Elbow welding cup type high-current electric connector

Abstract

The utility model discloses an elbow welding cup type large-current electric connector, which comprises an insulator provided with a fixing hole and a via hole, and a contact element serving as a jack is clamped in the via hole of the insulator; the contact element comprises an insertion end, a right-angle bend and a tail part, the insertion end of the contact element is an unthreaded hole, and a crown spring is sleeved in the unthreaded hole; in the right-angle bending step, the cut pipes are subjected to right-angle bending connection; and the tail part is a welding cup. According to the utility model, the installation height space is saved, the tail wire outlet direction is more flexible, the installation mode is more stable, the connector is suitable for occasions with high-strength vibration impact, and the contact transmission is stable and reliable; and the tail part adopts a welding cup type structure, so that the maintenance and replacement of the lead are more convenient and faster, the operation time of operators is saved, and the working efficiency of production and assembly of the whole machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector, and relates to a elbow solder cup type large current electric connector. BACKGROUND

[0002] With the rapid development of aviation and aerospace fields, especially in the environment of the prevalence of low-altitude economy, the types of low-frequency electric connectors are increasing day by day, and the market demand is rapidly growing; the use requirements of low height, small size and installation are also put forward for the connector. In the narrow installation space, the height and thickness of the connector have strict requirements.

[0003] Most of the contact pieces of the existing large current connectors are straight insertion type, or the wires at both ends can only be used as free ends and cannot be fixed, and the tail wire direction can only be vertical. SUMMARY

[0004] The utility model solves the technical problem and provides an elbow solder cup type large current electric connector, the connector itself can be installed and fixed as a fixed end, the tail can be bent and the solder cup wire is connected, the tail wire direction is changed, and the installation height is saved.

[0005] The utility model is realized through the following technical schemes:

[0006] An elbow solder cup type large current electric connector, comprising an insulator provided with a fixing hole and a via hole, and a contact piece clamped in the via hole of the insulator as a jack;

[0007] The contact piece comprises a plug-in end, a right-angle bend and a tail, wherein the plug-in end of the contact piece is a light hole, a crown spring is sleeved in the light hole, the right-angle bend is connected by right-angle bending of a cut pipe, and the tail is a solder cup.

[0008] The end face of the plug-in end is flush with the surface of the insulator.

[0009] The contact piece is connected in interference fit with the via hole, and a rotation-preventing milled flat is further arranged at the joint between the contact piece and the outer surface of the insulator.

[0010] The right-angle bend is connected by bending and connecting in the form of silver soldering after splicing the cut pipe into a right-angle bend.

[0011] The inner diameter of the solder cup is matched with the outer diameter of the wire to be welded.

[0012] A connecting bolt is arranged in the fixing hole, the connecting bolt is connected with a support plate at the tail end, and a connecting hole for fixing is arranged on the support plate.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The elbow welding cup type large-current electric connector provided by the utility model can change the wire direction of the tail part, meet the low height requirement, adopt the crown spring type structure at the insertion end, has soft plugging force, stable current transmission and long service life, is suitable for the development of the low height space installation of the large-current connector, and meets the development direction of the low height economy miniaturization in the future.

[0015] The elbow welding cup type large-current electric connector provided by the utility model can change the wire direction of the tail part, meet the low height requirement, adopt the crown spring type structure at the insertion end, has soft plugging force, stable current transmission and long service life, is suitable for the development of the low height space installation of the large-current connector, and meets the development direction of the low height economy miniaturization in the future.

[0016] The elbow welding cup type large-current electric connector provided by the utility model can change the wire direction of the tail part, meet the low height requirement, adopt the crown spring type structure at the insertion end, has soft plugging force, stable current transmission and long service life, is suitable for the development of the low height space installation of the large-current connector, and meets the development direction of the low height economy miniaturization in the future.

[0017] Compared with the traditional large-current two-core product, the utility model saves the installation height space, the wire direction of the tail part is more flexible, the installation mode is more stable, is suitable for the occasion with high strength vibration impact, the contact transmission is stable and reliable, the tail part adopts the welding cup type structure, the maintenance and replacement of the wire are more convenient and fast, the operation time of the operator is saved, and the work efficiency of the whole machine production and assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the elbow welding cup type large-current electric connector;

[0019] Figure 2 It is a side view of the elbow welding cup type large-current electric connector;

[0020] Figure 3 It is a schematic view of the contact and the crown spring;

[0021] Figure 4 It is one of the installation examples of the utility model;

[0022] Figure 5 It is the second installation example of the utility model.

[0023] Among them, 1 is an insulator, 2 is a contact, 3 is a mounting screw, 4 is a support plate, 5 is a crown spring, 6 is a mounting panel, 7 is a cavity edge, and 8 is a support plate fixing bolt. DETAILED DESCRIPTION

[0024] The utility model makes further detailed description in combination with drawings, which is an explanation of the utility model instead of limitation.

[0025] The large-current connector itself bears a large current of 60A, and needs to select a proper wire cross section according to the current-carrying capacity, so that the inner diameter of the contact cup matched with the wire cross section needs to be increased accordingly, so that the bending radius is often large, and a small bending radius is difficult to realize, which leads to that the low-height and horizontal outlet direction requirements cannot be met in the limited installation space.

[0026] The elbow contact cup type large-current electric connector provided by the utility model comprises an insulator provided with a fixing hole and a through hole, and a contact piece serving as a jack is clamped in the through hole of the insulator.

[0027] The contact piece comprises a plug-in end, a right-angle bend and a tail part, wherein the plug-in end of the contact piece is a through hole, a crown spring is sleeved in the through hole, the right-angle bend is a right-angle bend connection of a cut pipe, and the tail part is a contact cup.

[0028] Specifically, the end surface of the plug-in end is flush with the surface of the insulator.

[0029] The contact piece is connected in interference fit with the through hole, and a rotation-preventing milling flat is further arranged at the joint between the contact piece and the outer surface of the insulator.

[0030] Further, the right-angle bend is a right-angle bend connection of a cut pipe, and the bend connection is performed by silver soldering. The silver soldering after wire cutting reasonably avoids the technical problem that the tail part of the contact piece is too large in diameter and the bend length is too short to be bent, solves the problem that the contact piece cannot be bent by a conventional mechanical bending due to the interference between the bend and the contact cup, and the silver solder has excellent process performance.

[0031] The inner diameter of the contact cup is matched with the outer diameter of the wire to be welded. The tail part adopts a contact cup type structure, so that the wire is more convenient to maintain and replace, the outlet direction of the tail part is more flexible, the installation mode is more stable, the utility model is suitable for occasions with high-strength vibration and impact, and the contact transmission is stable and reliable.

[0032] Specifically, a connecting bolt is arranged in the fixing hole, the connecting bolt is connected to a support plate, and a connecting hole for fixing is arranged on the support plate. The fixing hole, the connecting bolt and the support plate are used as installation accessories, and the accessories are fixed by the installation mode, so that the utility model is suitable for occasions with high strength and high impact.

[0033] The tail part of the contact piece of the utility model is provided with a contact cup, the plug-in end is matched with a crown spring in a through hole, the bend is cut and right-angle bent, and the bend connection is performed by silver soldering, so that the problem that the bend space is limited and the bend cannot be directly performed is well solved.

[0034] And the insulator material is selected from PPS, PPS is a kind of special engineering plastics with excellent comprehensive performance. PPS has excellent high temperature resistance, corrosion resistance, radiation resistance, flame resistance, balanced physical and mechanical properties and excellent dimensional stability.

[0035] The connecting piece is made of QSn4-3 pipe material, and the tin bronze containing zinc has high wear resistance and elasticity, good magnetic resistance, and can well bear hot or cold pressure processing; in the hard state, it has good machinability, easy welding and brazing.

[0036] The crown spring is made of beryllium bronze, and the beryllium bronze has high hardness, elastic limit, fatigue limit and wear resistance.

[0037] The connecting bolt and screw are made of stainless steel 304, and the support plate is made of cold-rolled stainless steel plate.

[0038] The specific embodiments are given below.

[0039] As shown in Figure 4 , Figure 5 The connection scene has vibration impact load requirement and needs to transmit 60A large current, and the power supply + and power supply - are divided, and the power supply signal transmission of the upper cavity and the lower cavity is realized in the limited installation space, wherein the cavity edge 7 and above is the upper cavity, and the cavity edge 7 below is the lower cavity.

[0040] Because the installation height of the upper cavity is too low, the printed board type electric connector is selected, the support plate 4 and the locking screw 3 are used, the electric connector is fixed on the installation panel 6 through the support plate fixing bolt 8, and the distance from the cavity edge is limited, and the wire bending space is not enough, so the contact piece is vertically bent in the silver welding mode;

[0041] The tail of the contact piece 2 passes through the installation panel 6, and the tail adopts the structure of the welding cup, so that different specifications of wires can be welded, so that the power supply signal conduction of the upper and lower cavities is realized.

[0042] The above embodiments are the preferred examples of the present application, and the present application is not limited to the above embodiments. Any non-essential addition, replacement made by the person skilled in the art according to the technical features of the technical scheme of the present application belongs to the protection scope of the present application.

Claims

1. A high current electrical connector of the elbow cup type, characterized in that, The insulator is provided with a fixing hole and a through hole, and a contact of a jack is clamped in the through hole of the insulator; The contact includes a plug-in end, a right-angle bend and a tail, wherein the plug-in end is a through hole, a crown spring is sleeved in the through hole, the right-angle bend is connected by right-angle bending of a cut pipe, and the tail is a welding cup.

2. The elbow-welding cup type high current electrical connector of claim 1, wherein, An end surface of the plug-in end is flush with a surface of the insulator.

3. The elbow-welding cup-type high-current electrical connector of claim 1, wherein, The contact is connected with the through hole in interference fit, and a rotation-preventing flat surface is milled at a joint of the contact and an outer surface of the insulator.

4. The elbow-welding cup type high current electrical connector of claim 1, wherein, The right-angle bend is connected by bending of a silver solder after splicing of a pipe cut by a wire.

5. The elbow-welding cup type high current electrical connector of claim 1, wherein, An inner diameter of the welding cup is matched with an outer diameter of a wire to be welded.

6. The elbow-welding cup type high current electrical connector of claim 1, wherein, A connecting bolt is arranged in the fixing hole, an end of the connecting bolt is connected with a support plate, and a connecting hole for fixing is arranged on the support plate.

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