CN201590532U - Power supply connector - Google Patents

Abstract

The utility model discloses a power supply connector, it includes casing and two plug subassemblies, and the casing is passed with two plug subassembly blocks, and plug subassembly includes contact pin, insulator, connecting piece and sleeve, and the contact pin has the fixed part, and the one end of fixed part is extended and is formed the contact head, and the other end is extended and is formed the welding foot, and the fixed part passes and fixes in the insulator, connecting piece cladding insulator, and the cover barrel casing is established outside the connecting piece, and the connecting piece of two plug subassemblies links into an organic whole and draws forth the power cord. The power connector not only realizes the stable electric connection of the power connector, thereby realizing the stable transmission of electric signals of electronic products and ensuring the power utilization safety of the electronic products; and the process flow for manufacturing the power connector is simple, so that the production efficiency of the power connector is improved, and the mass production is facilitated.

Description

power connector

technical field

The utility model relates to a connector, in particular to a power connector.

Background technique

At present, electronic products such as mobile phones, personal data processors (PDA), notebook computers, and digital cameras are constantly changing, so the status of various connectors as ancillary products of electronic products is becoming more and more prominent. Generally, connectors are divided into signal type and power type, and the main difference between the two types is the working power supply and voltage. In general, signal connector contacts carry less than 1 amp and operate at low to medium voltages, while power connector contacts carry higher currents, typically greater than 1 amp. Power connectors can be made in different levels, from IC sockets to cables connecting devices or systems. A key metric for evaluating a connector's stability over its lifetime is the connector's contact resistance.

In the past, the contact jack of the power connector generally used a leaf spring structure. The disadvantage is that the jack is easy to lose its elasticity and fail. thereby rendering it ineffective. Generally, a connector using a power supply is provided with a contact piece and a terminal respectively in a base body, and the terminal and the contact piece are separated by an insulator, and then an insulating shell is wrapped around the above-mentioned terminal, contact piece and insulator body. Therefore, the structure forming the power connector includes, from the inside to the outside: terminals, insulators, contacts and insulating shells. When in use, after the power connector is inserted into the jack of the socket, the socket respectively touches the contacts and terminals of the power connector to form power conduction. In order to adapt to the trend of miniaturization of electronic products, the shape of the power supply connector of the supporting products of electronic products is becoming smaller and lighter, so the requirements for the manufacturing process of each component in the power connector are getting higher and higher.

In order to achieve a stable connection with the socket, the existing power connector uses a dual-connection plug. Although this configuration improves the stability of the electrical connection between the power connector and the plug, it makes the welding process more complicated. The existing dual-connection plug-type power connector has two contacts, and the two contacts are respectively welded with wires, and then the drawn wires are welded into one body. Such a design makes the production of the power connector more complicated and does not require It is beneficial to the batch production of the power connector, and the production efficiency is low; and the stability of the electrical connection of the power connector is affected because the junction of the two electric wires is not fixed.

Utility model content

The purpose of this utility model is to provide a power battery connector for the above-mentioned deficiencies in the prior art. The electricity use of the product is safe; and the technological process for manufacturing the power connector is simple, thereby improving the production efficiency of the power connector and facilitating mass production.

In order to achieve the above purpose, the power connector provided by the utility model includes a housing and two plug assemblies, and the two plug assemblies fit through the housing, and the plug assembly includes pins, insulators, connectors and The sleeve, the pin has a fixing part, one end of the fixing part is extended to form a contact head, and the other end is extended to form a welding foot, the fixing part passes through and is fixed in the insulator, and the connecting part covers the The insulator, the sleeve is sleeved on the outside of the connector, and the connectors of the two plug assemblies are connected into one body to lead out the power cord.

As mentioned above, since the power connector of the present utility model connects the connectors of the two plug assemblies together and draws out the power cord from them, it avoids welding the power cords separately from the two connectors in the prior art, and then connects the two power cords together. The complex process flow, thereby simplifying the production process flow of the power connector, improving the production efficiency of the power connector, is conducive to the mass production of the power connector. Furthermore, the structure in which the two connectors are connected together and the power line is drawn out realizes the stable electrical connection of the power connector, thereby realizing the stable transmission of electrical signals of electronic products and ensuring the safety of electricity use of electronic products.

Description of drawings

Fig. 1 is a perspective view of the power connector of the present invention.

FIG. 2 is a perspective view from another angle of the power connector shown in FIG. 1 .

FIG. 3 is an exploded perspective view of the power connector shown in FIG. 1 .

FIG. 4 is a schematic diagram of the assembly of pins and insulators in the power connector shown in FIG. 1 .

FIG. 5 is a schematic structural diagram of a connecting member in the power connector shown in FIG. 1 .

The reference signs in the figure are explained as follows:

Power connector 1 Housing 11

Through groove 111 Boss 112

Plug assembly 12 pins 121

Fixed part 1211 Contact head 1212

Welding foot 1213 insulator 122

Through hole 1221 First step 1222

Connecting piece 123 The second step 1231

Welding part 1232 Joint 1233

Power cord 1234 Barrel 124

Contact part 1241 Snap-in part 1242

Outer Sheath 125 Opening 1251

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Referring to FIG. 1 , the DC power connector 1 of the present invention includes a housing 11 and two plug assemblies 12 .

The power connector 1 of the utility model is used for electrically connecting a power socket and a circuit board in an electronic product. The structure of the power connector 1 will be described below by taking the power connector 1 as an example.

Please refer to Figures 1-4, the housing 11 of the power connector 1 of the present invention is provided with two symmetrical through grooves 111, the through grooves 111 run through the housing 11, the two plug assemblies 12 have the same structure, and are respectively Pass through the two through slots 111 of the housing 11 and engage in the through slots 111 . Specifically, the plug assembly 12 includes a pin 121 , an insulator 122 , a connecting piece 123 and a sleeve. In this embodiment, the sleeve includes a cylinder 124 , an outer sheath 125 and a holding piece 126 . As shown in FIG. 4 , the contact pin 121 has a fixing portion 1211 , one end of the fixing portion 1211 extends outward to form a contact head 1212 , and the other end of the fixing portion 1211 extends outward to form a soldering foot 1213 . The insulator 122 defines a through hole 1221 , and the fixing portion 1211 of the pin 121 passes through the through hole 1221 and is fixed in the insulator 122 . The connecting piece 123 is a hollow structure, and the hollow structure forms a cavity (not shown in the figure), and the connecting piece 123 covers the insulator 122 , that is, the insulator 122 is embedded in the cavity of the connecting piece 123 . The contact head 1212 of the pin 121 passes through the insulator 122 and is located in the cavity of the connector 123 . Specifically, the outer wall of the insulator 122 has a first stepped portion 1222, and the connecting piece 123 is cast with a second stepped portion 1231 matching the shape of the stepped portion 1222 of the insulator 122; In the cavity, the first step portion 1222 of the insulator 122 engages with the second step portion 1231 of the connector 123 , so that the insulator 122 is engaged in the connector 123 .

Referring to FIGS. 1-5 , a boss 112 extends between the two through slots 111 of the housing 11 of the power connector 1 . The two connecting pieces 123 respectively extend out of the welding portion 1232 , and the two welding portions 1232 are oppositely disposed, and a power line 1234 is welded at the junction 1233 of the two welding portions 1232 . The junction 1233 of the two welding parts 1232 is supported on the boss 112 of the housing 11 . In this embodiment, a power cord 1234 is welded between the welding parts 1232 of the two connecting parts 123 , that is, the welding parts 1232 of the two connecting parts 123 are welded into one body through the power cord 1234 . It should be noted that the welding parts of the two connecting parts of the power connector of the present utility model are not limited to the welding method in the above-mentioned embodiments; in other embodiments, the welding parts of the two connecting parts can be welded together first , and then lead out the power line at the junction of the two welding parts.

Please refer to Figures 1-5, the cylinder body 124 of the power connector 1 is sleeved outside the connecting piece 123, and one end of the cylinder body 124 extends to form a conflicting portion 1241, the conflicting portion 1241 is in the shape of a boss, and the cylinder body 124 The other end extends to form a locking portion 1242 . The fixing portion 1211 of the pin 121 passing through the insulator 122 extends into the engaging portion 1242 of the barrel 124 and is fixed in the engaging portion 1242 . The soldering leg 1213 of the pin 121 protrudes from the engagement portion 1242 of the barrel 124 . The holder 126 is sleeved on the engaging portion 1242 of the barrel 124 . The outer sheath 125 covers the barrel 124 and the holder 126 . The contact portion 1241 of the barrel 124 extends out of the outer sheath 125 , and the contact portion 1241 is in contact with the outer sheath 125 . In detail, the outer sheath 125 is provided with an opening 1251. When the cylinder body 124 passes through the outer sheath 125, the contact portion 1241 of the cylinder body 124 passes through the opening 1251 of the outer sheath 125 and is stuck in the outer sheath 125. opening.

In the power connector 1 of the present invention, both the pins 121 and the connectors 123 are conductors for connecting electronic products and power supplies. The power connector 1 can be a DC power connector or an AC power connector. When the power connector 1 is a DC power connector, any one of the pin 121 and the connecting piece 123 serves as a positive terminal, and the other serves as a negative terminal. When the power connector 1 is an AC power connector, any one of the pin 121 and the connecting piece 123 is used as a neutral wire, and the other is used as a live wire. The specific design depends on the specific situation.

Please refer to FIG. 3 , the assembly process of the power connector 1 of the present invention is as follows: First, insert the fixed part 1211 of the pin 121 into the through hole 1221 of the insulator 122, and then fit the insulator 122 into the connector 123, at this time, the first step 1222 of the insulator 122 is engaged with the second step 1231 of the connector 123; moreover, the cylinder 124 is sleeved outside the connector 124, and the holder 126 is set It is arranged outside the clamping part 1242 of the cylinder 124. At this time, the fixing part 1211 of the pin 121 passes through the clamping part 1242 of the cylinder 124, and passes through the clamping part 1242 to form the welding part of the pin 121. 1213, the contact portion 1241 of the cylinder body 124 passes through the opening 1251 of the outer sheath 125, and is stuck in the opening of the outer sheath 125, and then the plug assembly 12 is stuck in the through groove 111 of the housing 11; finally, the The welding parts 1232 of the connectors 123 of the two plug assemblies 12 are welded into one body through the power cord 1234 .

Claims (7)

1. A power connector, characterized in that it includes: a housing and two plug assemblies, the two plug assemblies snap-fit through the housing, the plug assembly includes pins, insulators, connectors and sleeves The pin has a fixing part, one end of the fixing part is extended to form a contact head, and the other end is extended to form a welding foot, the fixing part passes through and is fixed in the insulator, and the connecting piece covers the The insulator, the sleeve is sleeved on the outside of the connecting piece, the connecting pieces of the two plug assemblies are connected into one body and lead out the power line. 2 . The power connector according to claim 1 , wherein each of the connectors extends out of a welding portion, and the welding portions of the two plug assemblies are welded together. 3 . 3. The power connector as claimed in claim 2, wherein the welding portions of the two plug assemblies are opposite to each other. 4. The power connector according to claim 3, further comprising a power cord connected to the junction of the two welding parts. 5. The power connector according to claim 1, wherein the sleeve comprises a cylinder body, an outer sheath and a holder, one end of the cylinder body extends to form a contact portion, and the other end extends to form a snap-in portion , the fixing part of the pin passing through the insulator extends into the clamping part, and the welding leg of the pin extends out of the clamping part, and the holding part is sleeved on the clamping part. Outside the clamping part, the outer sheath is covered outside the holding part and interferes with the conflicting part, and the conflicting part protrudes from the outer sheath. 6. The power connector according to claim 1, wherein the connector is a hollow structure, the hollow structure forms a cavity, the insulator is embedded in the cavity, and the pin The contact head is located in the cavity. 7 . The power connector according to claim 4 , wherein a boss is extended from the housing, and the junction of the two welding parts is carried on the boss. 8 .

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