TWI397215B - Cable connector assembly - Google Patents

Description

Cable connector combination

The present invention relates to a cable connector combination, and more particularly to a cable connector combination for power conversion.

With the rapid development of the electronics industry, portable electronic devices have become an indispensable device for most people because of their lightness, shortness, and portability. Commonly used portable electronic devices include mobile phones, personal digital assistants (PDAs), digital cameras, digital cameras, notebook computers, and the like. The portable electronic device has a built-in battery to provide power required for operation. When the power is insufficient, the user can insert the connector of the AC-DC power adapter into a power socket of a home or office to convert the alternating current. It is DC power and is used directly in a portable electronic device or a battery that is further charged inside. The wire connection housing of the power converter generally forms a part of the stress relief portion that is snapped into the housing to prevent the wire from being pulled frequently from the casing when the power converter is used, thereby affecting the operation of the power converter. . Generally, in order to carry or accommodate such a power converter, the power cord is generally wound around the casing of the power converter. However, the stress relief portion of the wire of the power converter is generally integrally formed, and the material is too soft to be easily Pulling out from the housing, or the material is too hard, the stress relief portion is difficult to bend when the wire is wound around the housing, so that the wire of the stress relief portion is easily broken or damaged by the collision of foreign objects, thereby affecting the use of the power converter. And life expectancy.

Therefore, it is necessary to design a cable connector combination to overcome the above technical disadvantages.

It is an object of the present invention to provide a cable connector assembly that effectively improves the stress relief of a wire.

To achieve the above object, the cable connector combination of the present invention adopts the following technical solution: a cable connector combination for power conversion, comprising a housing having a circuit module therein; a connector including a cable and stress relief The stress relief portion includes a first insulator covering a portion of the cable and a second insulator covering the portion of the cable, the second insulator having a lower hardness than the first insulator, and the second insulator portion partially covering the first insulator An insulator, the one end of the cable is electrically connected to the circuit module, the first insulator includes an insulating ring, and the insulating ring and the second insulator have a receiving portion, and the housing is configured to be received The notch of the department.

Compared with the prior art, the cable connector combination of the present invention has the following beneficial effects: it forms a first insulator having a higher hardness by means of overmolding to snap into the casing to prevent the cable from being pulled from the casing. And forming a second insulator having a lower portion of the first insulator and having a lower hardness to wrap the wire around the casing to effectively prevent the wire from being broken or being damaged by a foreign object.

The invention will now be further described with reference to the drawings and preferred embodiments.

Referring to the first figure, the cable connector assembly 100 of the present invention includes a housing 1, a circuit module (not shown), a plug 2, and a connector 3.

Referring to the second to fourth embodiments, the housing 1 of the present embodiment includes an upper cover 11 and a lower cover 12, and the housing 1 has a receiving cavity 13 for receiving a circuit module. .

The plug 2 is a power input plug, and includes an insulator 21, a terminal passage 22 disposed in the insulator 21, a conductive terminal (not shown) received in the corresponding terminal passage 22, and a cable electrically connecting the conductive terminal and extending out of the insulator 21. twenty three. The insulator 21 of the plug 2 includes a hand portion 212 and an insertion portion 211 extending from the hand portion 212. The housing 1 has a receiving cavity 14 at the insertion portion 211 of the plug 2, and the insertion portion 211 of the plug 2 is fully inserted into the receiving cavity 14 of the housing 1 and the conductive terminal is electrically connected to a power socket. The power socket is electrically connected. The circuit module is received in the receiving cavity 13 such that the conductive terminals of the plug 2 are electrically connected to the circuit module received in the receiving cavity 13.

The connector 3 is a power outlet connector that includes a cable 34 and a strain relief (not labeled). The stress relief portion includes a first insulator 31 and a second insulator 32. The cable 34 includes a wire 340 electrically connected to the circuit module and an insulation 341 covering the wire 340. The first insulator 31 is formed adjacent to the circuit module 340, and the first insulator 31 includes a main body portion 310 and an insulating ring 311 extending from the main body portion 310. The diameter of the insulating ring 311 is insulated from the main body portion 310. The diameter at the ring 311 is large and closer to the wire 340 to the circuit module. The first insulator 31 covers a portion of the cable 34. The second insulator 32 is formed on the side of the main body portion 310 of the first insulator 31 and covers a portion of the main body portion 310 and a portion of the cable 34 adjacent to the main body portion 310, and forms a gap between the second insulator 32 and the insulating ring 311. A housing portion 33. The upper cover 11 and the lower cover 12 of the housing 1 have a first recess 110 and a second recess 120 respectively with respect to the receiving portion 33 of the joint 3. When the upper cover 11 and the lower cover 12 are coupled, the first recess 110 and the second recess 120 are respectively sleeved on the receiving portion 33. The upper and lower sides allow the joint 3 to be fixed to the casing 1. The first insulator 31 of the joint 3 of the cable connector assembly 100 of the present invention has a higher hardness than the second insulator 32, and the first insulator 31 of the joint 3 is made of a high hardness PVC (polyvinyl halide) material, generally using hardness. It is 20P (P number is commonly known as the industry, it is an index to judge the hardness of rubber particles, internationally, it is generally marked with Shore A hardness, 20P corresponds to Shore hardness of 100A ± 0.5A) to 40P (40P corresponds to Shaw The PVC having a hardness of 94 A ± 1.5 A) is such that the first insulator 31 of the joint 3 has sufficient hardness to be easily pulled out of the casing 1. The second insulator 32 of the joint 3 is made of PVC having a lower hardness, and generally has a hardness of 70P (the Shore hardness of 70P corresponds to 76A±1.5A) to 90P (the Shore hardness of 90P corresponds to 64A±1.5A). Thus, when the cable 34 is wound around the casing 1 without using the cable connector assembly 100, the second insulator 32 can be easily bent to effectively protect the cable 34 from being broken.

The first insulator 31 and the second insulator 32 of the connector 3 of the cable connector assembly 100 of the present invention have various structural forms, such as the first insulator 31 including only the insulation formed adjacent to the circuit module connected to the wire 340. The ring 311, the second insulator 32 is formed at a position away from the wire 340 to the circuit module relative to the insulating ring 311 and forms a receiving portion 33 with the insulating ring 311. In the cable connector assembly 100 of the present invention, the second insulator 32 having a soft material may be formed first, then the first insulator 31 having a relatively hard material is molded, and the body portion 310 of the first insulator 31 is covered with a portion of the second insulator 32. . The housing 1 of the cable connector assembly 100 of the present invention may also include an insulating ring 311 and a circuit module therein by an integral molding method. The cable 34 of the connector 3 of the cable connector combination of the present invention is opposite to the electrical connection circuit module One end can be electrically connected to a plug, and the cable 23 of the plug 2 can be electrically connected to a plug with respect to the other end of the electrical connection conductive terminal, so that the plug of the electrical connection plug 2 is plugged into a power source, the power source It is transferred from the plug of the electrical connector plug 2 to the plug 2, and then to the circuit module in the housing 1, and then to the connector 3, and then to the connector of the electrical connector 3, the electrical connector The plug of 3 can be plugged into a device to provide power to the device. The material of the first insulator 31 of the cable connector assembly 100 of the present invention is not limited to the PVC material, and the other insulating material 311 of the first insulator 31 is not pulled out from the casing 1 when the other materials are used, even if the first insulator 31 is made of PVC, and its hardness is not limited to between 20P and 40P. Other hardness materials can be pulled out without using the insulating ring 311. The first insulator 31 is made of PVC with a hardness of 20P to 40P. A better result is obtained by considering factors such as price and hardness. The material of the second insulator 32 of the cable connector assembly 100 of the present invention is not limited to the PVC material. Other materials may be soft and have good bending properties when used. Even if the first insulator 31 is made of PVC material. The hardness is not limited to between 70P and 90P. Other hardness materials may be used as long as the second insulator 32 is soft and has good bending property. The second insulator 32 is made of PVC with a hardness of 70P to 90P. It is only a better result based on factors such as price and hardness.

1‧‧‧shell

100‧‧‧ cable connector combination

11‧‧‧Upper cover

110‧‧‧ first notch

12‧‧‧Under the cover

120‧‧‧second notch

13, 14‧‧‧ containment chamber

2‧‧‧ plug

21‧‧‧Insulator

211‧‧‧ Insertion Department

212‧‧‧Handheld Department

22‧‧‧Terminal channel

23, 34‧‧‧ Cable

3‧‧‧Connectors

31‧‧‧First insulator

310‧‧‧ Main body

311‧‧‧Insulation ring

32‧‧‧Second insulator

33‧‧‧ 容部

340‧‧‧Wire

341‧‧‧Insulation

The first figure is a perspective view of the cable connector assembly of the present invention.

The second figure is an exploded perspective view of the cable connector assembly of the present invention, wherein the upper cover is not covered by the lower cover.

The third figure is an exploded perspective view of the cable connector assembly of the present invention.

The fourth figure is a view of another perspective of the cable connector assembly shown in the third figure.

Figure 5 is a cross-sectional view of the cable connector assembly shown in Figure 1 taken along line V-V.

100‧‧‧ cable connector combination

11‧‧‧Upper cover

110‧‧‧ first notch

12‧‧‧Under the cover

13, 14‧‧‧ containment chamber

2‧‧‧ plug

211‧‧‧ Insertion Department

212‧‧‧Handheld Department

23‧‧‧ Cable

3‧‧‧ plug

31‧‧‧First insulator

32‧‧‧Second insulator

33‧‧‧ 容部

34‧‧‧ Cable

340‧‧‧Wire

Claims (10)

A cable connector assembly for power conversion includes: a housing having a circuit module therein; a connector including a cable and a stress relief portion, the stress relief portion including a first insulator covering a portion of the cable And a second insulator covering a portion of the cable, the first insulator including a body portion and an insulating ring extending from the body portion, the second insulator having a lower hardness than the first insulator, and the second insulator being formed in the One side of the main body portion of the first insulator and a portion of the main body portion and a portion of the cable adjacent to the main body portion are covered therein, so as to have a receiving portion between the insulating ring and the second insulator, the housing is provided The recess having a high hardness is located in the casing, and the second insulator having a low hardness is located outside the casing, and one end of the cable is electrically connected to the circuit module. The cable connector assembly of claim 1, wherein the housing comprises an upper housing and a lower housing. The cable connector assembly of claim 2, wherein the recess comprises a first recess in the upper housing and a second recess in the lower housing. The cable connector assembly of claim 3, wherein the first insulator further comprises a body portion connecting the insulating ring, the diameter of the insulating ring being larger than a diameter at which the body portion is connected to the insulating ring. The cable connector assembly of claim 4, wherein the second insulator covers a portion of the body portion of the first insulator. The cable connector assembly of claim 2, wherein the cable connector assembly further comprises a plug, the plug comprising an insulator, a plurality of terminal passages disposed in the insulator, and being received in the corresponding terminal. Channel The conductive terminal and the cable electrically connected to the conductive terminal, the insulator of the plug includes a hand-held portion and an insertion portion extending from the hand-held portion, and the casing is provided with a receiving cavity for receiving the insertion portion of the plug. The cable connector assembly of claim 6, wherein the conductive terminal of the plug is electrically connected to the circuit module after the insertion portion of the plug is completely inserted into the receiving cavity. The cable connector assembly of claim 7, wherein the cable of the plug is electrically connected to a plug, and the cable of the connector is also electrically connected to a plug. The cable connector assembly of claim 2, wherein the first insulator and the second insulator are both made of PVC. The cable connector assembly according to claim 9, wherein the hardness of the plastic of the PVC used in the first insulator ranges from 20P to 40P, and the hardness range of the plastic of the PVC used in the second insulator is Between 70P and 90P.