CN221126319U

CN221126319U - Electric connector

Info

Publication number: CN221126319U
Application number: CN202323107251.3U
Authority: CN
Inventors: 张剑利; 葛威; 钟志云; 崔雷
Original assignee: Phoenix Contact Asia Pacific Nanjing Co Ltd
Current assignee: Phoenix Contact Asia Pacific Nanjing Co Ltd
Priority date: 2023-11-16
Filing date: 2023-11-16
Publication date: 2024-06-11
Anticipated expiration: 2033-11-16

Abstract

The utility model belongs to the technical field of connectors, and discloses an electric connector. The electric connector comprises a contact pin, a plastic-coated shell and a plastic-coated contact finger, wherein the contact pin comprises a rolling part, a connecting part and a flat tail part which are connected in sequence; the plastic-coated shell is sleeved on the outer sides of the connecting part and part of the flat tail part, the plastic-coated shell is provided with a containing cavity, and the rolling part extends into the containing cavity; one end of the plastic-covered contact finger is inserted into the rolling part, the other end of the plastic-covered contact finger extends out of one end of the rolling part, and the other end of the plastic-covered contact finger is flush with one end face of the plastic-covered shell. According to the electric connector provided by the utility model, the plastic-coated shell is directly sleeved on the outer sides of the connecting part and part of the flat tail part through one-time plastic coating, the contact pin comprises the rolling part, the plastic-coated contact finger can be directly inserted into the rolling part through one-time plastic coating, no additional assembly process is required, the manufacturing cost is effectively reduced, and the electric connector is simple in structure, and the connection between the plastic-coated shell and the contact pin and between the contact pin and the plastic-coated contact finger is stable and reliable.

Description

Electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to an electrical connector.

Background

The electric connector is a circuit element for circuit connection, is mainly applied to military systems such as aviation, aerospace, national defense and the like, and has large consumption in various military machines and weapons. With the recent trend of the connector industry, the requirements of customers on the current carrying capacity of the connectors are higher and higher, and the applied connectors are updated continuously. The connector which is safe, reliable, small in size, light in weight and low in cost is beneficial to automatic assembly and becomes a requirement of industry.

At present, a socket end connector in the field of new energy automobiles or energy storage is generally of an assembly structure, and is formed by assembling a contact pin, a plastic-covered contact finger and a plastic-covered shell, wherein the assembled parts have the risk of falling off, and the parts are complex in structure and high in cost.

Therefore, there is a need for an electrical connector to solve the above technical problems.

Disclosure of utility model

The utility model aims to provide an electric connector, which aims to solve the problems of high assembly cost and unreliable assembly of the existing electric connector and effectively improve the connection reliability between all parts of the electric connector.

To achieve the purpose, the utility model adopts the following technical scheme:

An electrical connector, comprising:

The pin comprises a rolling part, a connecting part and a flat tail part which are sequentially connected;

the plastic-coated shell is sleeved on the outer sides of the connecting part and part of the flat tail part, the plastic-coated shell is provided with a containing cavity, and the rolling part extends into the containing cavity;

The plastic-covered contact finger is inserted into the round rolling part at one end, extends out of one end of the round rolling part at the other end, and is flush with one end face of the plastic-covered shell at the other end.

Optionally, the connecting portion is in a conical flat tubular shape, the small end of the connecting portion is connected with the rolling portion, and the large end of the connecting portion is connected with the flat tail portion.

Optionally, the flat tail portion is set up to be through the connecting portion is kept away from the crimping structure that the one end of rolling up round portion was clapped and is formed.

Optionally, the thickness of the flat tail part is 2mm-5mm.

Optionally, a through round hole structure is arranged on the flat tail part and is used for connecting with an external part.

Optionally, the plastic-coated casing comprises a first barrel and a second barrel which are connected with each other, the first barrel is sleeved on the outer sides of the connecting part and part of the flat tail part, the inner cavity of the second barrel forms the accommodating cavity, and the outer diameter of the first barrel is larger than that of the second barrel.

Optionally, an annular groove is provided on the outer surface of the second cylinder, the annular groove being used for connection of an external component.

Optionally, an identification protrusion is arranged on the outer surface of the second barrel, and a marking part is arranged on the identification protrusion and used for identifying the type of the electric connector.

Optionally, the identification protrusion is further provided with a plurality of connection through holes, and the connection through holes are used for being connected with an external component.

Optionally, the plastic-covered contact finger comprises a contact finger main body part and a contact cap part which are connected with each other, the contact finger main body part is inserted into the rolling part, and the contact cap part protrudes to the outer side of the rolling part and can cover the end face of the rolling part.

The utility model has the beneficial effects that: according to the electric connector provided by the utility model, the plastic-coated shell is directly sleeved on the outer sides of the connecting part and part of the flat tail part through one-time plastic coating, the contact pin comprises the rolling part, the plastic-coated contact finger can be directly inserted into the rolling part through one-time plastic coating, no additional assembly process is required, the manufacturing cost is effectively reduced, and the electric connector is simple in structure, and the connection between the plastic-coated shell and the contact pin and between the contact pin and the plastic-coated contact finger is stable and reliable.

Drawings

FIG. 1 is a three-dimensional view of an electrical connector provided by an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an electrical connector provided by an embodiment of the present utility model;

fig. 3 is a three-dimensional view of a pin provided by an embodiment of the present utility model.

In the figure:

100. A contact pin; 110. a rolling part; 120. a connection part; 130. a flat tail; 131. a round hole structure;

200. A plastic-coated shell; 210. a first cylinder; 220. a second cylinder; 221. an annular groove; 222. a marking protrusion; 2221. a marking part; 2222. a connecting through hole;

300. Coating plastic contact fingers; 310. a finger body portion; 320. a touch cap.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The electric connector generally refers to a device for connecting two active devices, and realizes current transmission or signal transmission between devices or systems, and has the main function of setting up a bridge for communication between blocked positions in a circuit or isolated different circuits, so that the circuit realizes a preset function. With the development of the industry of electric connectors, the safety, reliability, small size, light weight and low cost are the trend. The embodiment provides an electric connector, which aims to solve the problems of high assembly cost and unreliable assembly of the traditional assembled electric connector and effectively improve the connection reliability between all parts of the electric connector.

As shown in fig. 1 to 3, the electrical connector includes a pin 100, a plastic-coated housing 200 and a plastic-coated contact finger 300, where the pin 100 includes a rolled portion 110, a connecting portion 120 and a flat tail portion 130 connected in sequence; the plastic-coated shell 200 is sleeved outside the connecting part 120 and part of the flat tail part 130, the plastic-coated shell 200 is provided with a containing cavity, and the rolling part 110 extends into the containing cavity; one end of the plastic covered contact finger 300 is inserted into the rolling part 110, the other end of the plastic covered contact finger 300 extends out of one end of the rolling part 110, and the other end of the plastic covered contact finger 300 is flush with one end face of the plastic covered shell 200.

The electrical connector provided in this embodiment, the plastic-coated housing 200 is directly sleeved on the outer sides of the connection portion 120 and the part of the flat tail portion 130 through one-time plastic coating, the contact pin 100 comprises the rolling portion 110, the plastic-coated contact finger 300 can be directly inserted in the rolling portion 110 through one-time plastic coating, no additional assembly process is needed, the manufacturing cost is effectively reduced, the electrical connector has a simple structure, the plastic-coated housing 200 and the contact pin 100 are connected stably and reliably, and the contact pin 100 and the plastic-coated contact finger 300 are connected stably and reliably.

Optionally, the flat tail 130 is configured as a crimp structure formed by flattening an end of the connecting portion 120 remote from the rounded portion 110. The contact pin 100 is integrally rolled, a rolling part 110 and a connecting part 120 are formed, and then one end, far away from the rolling part 110, of the connecting part 120 is subjected to flattening treatment to form a flat tail 130 with a crimping structure, so that the rolling part 110 and the flat tail 130 have a larger connecting area, and the current capacity is improved.

Further, the connecting portion 120 has a tapered flat tubular shape, the small end of the connecting portion 120 is connected to the rounded portion 110, and the large end of the connecting portion 120 is connected to the flat tail portion 130. This arrangement allows for a smooth transition between the rounded portion 110 and the tail portion 130.

In this embodiment, the flat tail 130 is provided with a through hole structure 131, and the hole structure 131 is used for connecting with an external component. For example, the external component may be a nut or bolt, or the like.

Alternatively, the thickness of the flat tail 130 is 2mm to 5mm, which can better ensure the connection strength of the flat tail 130 with external components.

In this embodiment, the pin 100 may be manufactured by machining or by stamping, and a machining process may be selected as required.

The plastic-coated casing 200 includes a first cylinder 210 and a second cylinder 220 that are connected to each other, the first cylinder 210 is sleeved on the outer sides of the connection portion 120 and part of the flat tail portion 130, an inner cavity of the second cylinder 220 forms a containing cavity, and an outer diameter of the first cylinder 210 is larger than an outer diameter of the second cylinder 220. After the second cylinder 220 is connected with the external component, the outer diameter of the first cylinder 210 is larger than that of the second cylinder 220, and the first cylinder 210 can play a limiting role on the external component, so that connection reliability is improved.

Optionally, the outer surface of the second cylinder 220 is provided with an annular groove 221, the annular groove 221 being used for connection of external components.

Optionally, the outer surface of the second cylinder 220 is provided with an identification protrusion 222, and the identification protrusion 222 is provided with a marking portion 2221, and the marking portion 2221 is used for identifying the type of the electrical connector. If the electrical connector is a positive connector, the marking portion 2221 is "+" and if the electrical connector is a negative connector, the marking portion 2221 is "-".

In addition, the identification protrusion 222 is further provided with a plurality of connection through holes 2222, and the connection through holes 2222 are used for connection with an external part.

The plastic covered contact finger 300 includes a contact finger main body portion 310 and a contact cap portion 320 which are connected to each other, the contact finger main body portion 310 is inserted into the rolled portion 110, and the contact cap portion 320 protrudes to the outside of the rolled portion 110 and can cover the end surface of the rolled portion 110. The plastic-covered contact finger 300 effectively prevents a human hand from touching the contact pin 100 due to misoperation, and improves safety. The contact cap 320 protrudes to the outside of the rounded portion 110 and can cover the end surface of the rounded portion 110, and the contact cap 320 completely covers the end surface of the rounded portion 110, ensuring anti-touch reliability.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. An electrical connector, comprising:

The contact pin (100), the contact pin (100) comprises a rolling part (110), a connecting part (120) and a flat tail part (130) which are connected in sequence;

the plastic-coated shell (200) is sleeved outside the connecting part (120) and part of the flat tail part (130), the plastic-coated shell (200) is provided with a containing cavity, and the rolling part (110) extends into the containing cavity;

The plastic-covered contact finger (300), one end of the plastic-covered contact finger (300) is inserted into the rolling part (110), the other end of the plastic-covered contact finger (300) extends out of one end of the rolling part (110), and the other end of the plastic-covered contact finger (300) is flush with one end face of the plastic-covered shell (200).

2. The electrical connector of claim 1, wherein the tail portion (130) is configured as a crimped structure formed by flattening an end of the connecting portion (120) remote from the rounded portion (110).

3. The electrical connector according to claim 2, wherein the connecting portion (120) has a tapered flat tubular shape, a small end of the connecting portion (120) is connected to the rounded portion (110), and a large end of the connecting portion (120) is connected to the flat tail portion (130).

4. The electrical connector of claim 1, wherein the thickness of the tail portion (130) is 2mm to 5mm.

5. The electrical connector of claim 1, wherein the tail portion (130) is provided with a through hole structure (131), and the hole structure (131) is used for connecting with an external component.

6. The electrical connector of claim 1, wherein the plastic-coated housing (200) includes a first cylinder (210) and a second cylinder (220) that are connected to each other, the first cylinder (210) is sleeved on the outer sides of the connection portion (120) and a portion of the flat tail portion (130), an inner cavity of the second cylinder (220) forms the accommodating cavity, and an outer diameter of the first cylinder (210) is larger than an outer diameter of the second cylinder (220).

7. The electrical connector according to claim 6, wherein the outer surface of the second cylinder (220) is provided with an annular groove (221), the annular groove (221) being used for connection of external components.

8. The electrical connector according to claim 6, wherein an outer surface of the second cylinder (220) is provided with an identification protrusion (222), the identification protrusion (222) is provided with a marking portion (2221), and the marking portion (2221) is used for identifying the type of the electrical connector.

9. The electrical connector of claim 8, wherein the identification protrusion (222) is further provided with a plurality of connection through holes (2222), and the connection through holes (2222) are used for connection with an external component.

10. The electrical connector of claim 1, wherein the plastic-covered contact finger (300) comprises a contact finger main body portion (310) and a contact cap portion (320) which are connected to each other, the contact finger main body portion (310) is inserted into the rounded portion (110), and the contact cap portion (320) protrudes to the outside of the rounded portion (110) and can cover the end face of the rounded portion (110).