CN203205627U

CN203205627U - RJ45/RJ11 connector with fixing arm difficult to break

Info

Publication number: CN203205627U
Application number: CN 201220397551
Authority: CN
Inventors: 严平
Original assignee: Buffalo Inc
Current assignee: Buffalo Inc
Priority date: 2012-08-10
Filing date: 2012-08-10
Publication date: 2013-09-18
Anticipated expiration: 2022-08-10
Also published as: JP3183252U

Abstract

The utility model provides an RJ45/RJ11 connector with a fixing arm difficult to break. Through using the fixing arm of the polyamide resin or acetal resin-molded connector or a connector entire body containing the fixing arm, the fixing arm will not lose elasticity even if 90-degree deformation occurs on the fixing arm, and therefore, it can be ensured that the fixing arm can be connected with another connector.

Description

Fixed arm is RJ45, the RJ11 connector of frangibility not

Technical field

The utility model relates to the connector of the fixed arm of the modular jack such as RJ45 that have the RJ11 that is applicable to telephone wire or be applicable to netting twine.

Background technology

The RJ45 interface is a kind of standardization socket for transfer of data, common network data transmission, i.e. the netting twine interface of being applied as.The RJ45 connector is the standardization plug of corresponding RJ45 interface, is commonly called as " crystal head ", and shown in Fig. 1 (A), (B), connector (100) is by fixed arm part (120,130) and includes main part (110) formation of a plurality of pins.Similarly, the RJ11 connector is the standardization plug of corresponding RJ11 interface, but is generally used for telephone wire.

Connector in the past normally uses Merlon (PC) global formation main body and fixed arm partly to constitute.But fixed arm, also can be followed the string even playback, thereby die down with engaging of connector body in case be bent to more than 90 degree owing to its structural reason bends easily, and perhaps fixed arm is fractureed and causes connector loosening easily.

In order to address the above problem; in the prior art, proposed the structure of fixed arm part is carried out improved connector (patent documentation 1; 2); cling fixed arm and body with the connector (patent documentation 3) of restriction fixed arm bending angle with elastomeric element; even jack is set to the fixed arm of connector and fractures and also can be fixed in inner structure (patent documentation 4); fixed arm is set to the replaceable fixed arm (patent documentation 5 ~ 8) that can dismantle from connector body; or sheath is set slidably with protection connector and fixed arm (patent documentation 9) at netting twine.But above-mentioned these methods all need to change the structure of existing connector, jack and/or netting twine, remain improved space also existing aspect productivity, operability and the economy.

Patent documentation 1:JP3135442U

Patent documentation 2:JP3064910U

Patent documentation 3:JP spy opens flat 11-16653A

Patent documentation 4:JP spy opens 2009-211913A

Patent documentation 5:JP spy opens 2009-104906A

Patent documentation 6:JP spy opens 2008-181671A

Patent documentation 7:JP spy opens 2008-4454A

Patent documentation 8:JP spy opens 2001-68213A

Patent documentation 9:JP spy opens 2000-100511A

The utility model content

In order to overcome the problem that above-mentioned prior art exists, the utility model provides the not RJ45 connector of frangibility of a kind of fixed arm.

The utility model provides a kind of RJ45 connector, it is made of the main part that comprises fixed arm and a plurality of pins, and the elasticity of flexure coefficient of being measured by the bend test method ASTM D790 based on ASTM regulation is that the resin global formation more than the 25000kgf/cm2 obtains.

Further, above-mentioned resin is that polyamide (polyamide) is resin or acetal resin (POM).

Further, the forming temperature scope of above-mentioned resin is 180-280 ℃, and cooling time, scope was that 13s-23s(s is second), injection moulding speed is 30-110M/s, injection pressure is 15-100Kg/cm2.For polyamide-based resin, preferred forming temperature scope is 240-280 ℃, and cooling time, scope was 13s-23s, and injection moulding speed is 30-50M/s, and injection pressure is 15-40Kg/cm2, and mould temperature scope is 55-65 ℃.For acetal resin, preferred forming temperature scope is 180-210 ℃, and cooling time, scope was 13s-23s, and injection moulding speed is 50-110M/s, and injection pressure is 25-100Kg/cm2, and the mold temperature scope is 55-65 ℃.

The utility model also provides a kind of RJ45 connector, it is made of the main part that comprises fixed arm and a plurality of pins, and the elasticity of flexure coefficient that fixed arm is measured by the bend test method ASTM D790 based on the ASTM regulation is that the resin more than the 25000kgf/cm2 constitutes.

Further, above-mentioned resin is polyamide-based resin or acetal resin.

Further, the forming temperature scope of above-mentioned resin is 180-280 ℃, and cooling time, scope was 13s-23s, and injection moulding speed is 30-110M/s, and injection pressure is 15-100Kg/cm2.For polyamide-based resin, preferred forming temperature scope is 240-280 ℃, and cooling time, scope was 13s-23s, and injection moulding speed is 30-50M/s, and injection pressure is 15-40Kg/cm2, and mould temperature scope is 55-65 ℃.For acetal resin, preferred forming temperature scope is 180-210 ℃, and cooling time, scope was 13s-23s, and injection moulding speed is 50-110M/s, and injection pressure is 25-100Kg/cm2, and the mold temperature scope is 55-65 ℃.

Be naval stores more than the 25000kgf/cm2 about elasticity of flexure coefficient, can be referring to the product information of Asahi Chemical Industry's chemistry (Asahi Kasei Chemicals) Co., Ltd., for example table 2 of http://www.akchem.com/ETB55.

ASTM D790 is to the not standard test method of the bending property of reinforcement and reinforced plastics and insulating material.Concrete assay method, condition and equipment can be referring to http://www.djklab.com/contents/exam/butsusei/mage/index.htm and http://www.astm.org/Standards/D790.htm.

The utility model is by the fixed arm part of using polyamide or acetal resin moulding connector or the connector integral body that comprises fixed arm, and above distortion can not followed the string yet even fixed arm produces 90 degree, can guarantee to engage with connector.

Description of drawings

Fig. 1 (A) is the end view of existing connector

Fig. 1 (B) is the vertical view of existing connector

Fig. 2 (A) is the end view of connector of the present utility model

Fig. 2 (B) is the vertical view of connector of the present utility model

Fig. 3 is the schematic diagram of 180 degree cripping tests among the embodiment

Description of reference numerals

The connecting portion of 100-connector, 110-main body, 120-fixed arm and main body, the movable part of 130-fixed arm

Embodiment

In more detail the utility model is described below in conjunction with embodiment and accompanying drawing.

Shown in Fig. 2 (A), (B), the utility model uses the fixed arm 120,130 of polyamide or acetal resin moulding connector 100, be the dark part shown in Fig. 2 (A), (B), perhaps use polyamide or acetal resin global formation to obtain comprising the whole connector 100 of fixed arm.

With the nylon shown in the table 1 (NYLON), acetal resin (POM), Merlon (PC) and polyvinyl chloride (PVC) respectively as materials A, B, C and D.Carry out injection mo(u)lding under condition shown in the table 1, moulding integrally obtains connector.The connector that obtains is carried out the cripping test of 180 degree.Described 180 degree cripping tests are bent to 180 degree with fixed arm and return to original position then and be designated as once, the bending number of times when recording various materials and rupturing fully.Concrete cripping test result as table 2 to shown in the table 4.

Table 1

* elasticity of flexure coefficient is based on the elasticity of flexure coefficient that the bend test method ASTM D790 of ASTM regulation measures

Table 2

Table 3

Table 4

By table 1-4 as can be known, conventional material on average only can anti-bending 20 times, and when adopting polyamide-based resin, it is average more than 500 times that the number of times of anti-the bending has reached, and when adopting POM, the number of times of anti-the bending has reached average 200 times.And when using PC, fixed arm has namely lost elasticity after bending once, and its fixed function obviously reduces.

Claims

1. a RJ45 or RJ11 connector is characterized in that: by fixed arm with comprise the main part of a plurality of pins and constitute that the elasticity of flexure coefficient of being measured by the bend test method AS TM D790 based on the ASTM regulation is 25000kgf/cm ²Above resin global formation and obtaining.

2. RJ45 according to claim 1 or RJ11 connector, it is characterized in that: described resin is polyamide-based resin or acetal resin.

3. RJ45 according to claim 1 and 2 or RJ11 connector, it is characterized in that: the temperature of moulding is 180-280 ℃, and be 13s-23s cooling time, and injection moulding speed is 30-110M/s, and injection pressure is 15-100Kg/cm ², mold temperature is 55-65 ℃.

4. a RJ45 or RJ11 connector is characterized in that: by fixed arm with comprise the main part of a plurality of pins and constitute that fixed arm is 25000kgf/cm by the elasticity of flexure coefficient that the bend test method AS TM D790 based on the ASTM regulation measures ²Above resin constitutes.

5. RJ45 according to claim 4 or RJ11 connector, it is characterized in that: described resin is polyamide-based resin or acetal resin.

6. according to claim 4 or 5 described RJ45 or RJ11 connector, it is characterized in that: the temperature of moulding is 180-280 ℃, and be 13s-23s cooling time, and injection moulding speed is 30-110M/s, and injection pressure is 15-100Kg/cm ², mold temperature is 55-65 ℃.