Connector convenient for replacing terminals

Abstract

The utility model discloses a connector convenient to replace terminals, which belongs to the technical field of connectors, and comprises a plug, a socket and terminals used for being connected with the plug, the plug comprises a shell and a base assembly arranged in the shell, the output end of the base assembly is connected with a straight wire clamp, and the output end of the straight wire clamp is connected with the socket. A second thread sleeve is sleeved at the joint of the straight wire clamp and the shell, a first thread sleeve is sleeved on the shell corresponding to the input end of the base assembly, an extrusion cavity is formed between the first thread sleeve and the shell through a check ring, a gasket is arranged in the extrusion cavity, and the extrusion cavity is equally divided into a first cavity body and a second cavity body by the gasket; the first cavity and the second cavity are internally provided with wave-shaped rings, the end portion of the plug is provided with a protruding contact portion, and the contact portion is electrically connected with the socket. According to the utility model, the problems that the existing connector terminal is inconvenient to replace and poor in impact resistance are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector with convenient terminal replacement. Background Art

[0002] A connector is a device used to connect two active devices, primarily for transmitting current or signals. Existing connector structures mostly use an integrated design, with the terminals fixed in the housing and non-replaceable. This design can easily lead to loosening, wear, or deformation of the contact terminals during frequent plugging and unplugging operations, resulting in poor connections and impacting signal transmission stability. Once the terminals are damaged, the entire electrical connector must be replaced, wasting resources and increasing operating costs. This is especially true for critical equipment where failure to replace the electrical connector in a timely manner can result in downtime and significant economic losses. Furthermore, the integrated connector structure is difficult to adapt to locations with relatively poor operating environments, and the contact terminals have poor impact resistance, making them prone to accumulation of dust, water stains, and other substances, posing a safety hazard.

[0003] Therefore, there is an urgent need for a connector with a more flexible structure and easier maintenance and replacement. Utility Model Content

[0004] The purpose of the present invention is to overcome the above-mentioned background technical difficulties. The present invention provides a connector that can easily replace terminals and has good sealing performance and resistance to vibration and impact.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: it includes a plug, a socket and a terminal for connecting to the plug, the plug includes a shell and a base assembly arranged in the shell, the base assembly consists of a base, a wire sealing body, an insulator, a support spring ring and a contact piece, the insulator is filled in the base, the contact piece is connected to the wire sealing body through the support spring ring and is arranged in the base, the output end of the base assembly is connected to a straight wire clamp, and a second screw sleeve is sleeved at the connection between the straight wire clamp and the shell, a first screw sleeve is sleeved on the shell corresponding to the input end of the base assembly, an extrusion cavity is formed between the first screw sleeve and the shell by a retaining ring, a gasket is provided in the extrusion cavity, the gasket divides the extrusion cavity equally into a first cavity and a second cavity, and a corrugated ring is provided in both the first cavity and the second cavity, the end of the plug is provided at a protruding contact portion, and the contact portion is electrically connected to the socket.

[0006] Furthermore, the first screw sleeve consists of a first connecting part and a second connecting part, the first connecting part and the second connecting part are cylindrical in shape, the diameter of the second connecting part is larger than that of the first connecting part, and the height of the first connecting part is 1 / 2 of the height of the second connecting part.

[0007] Furthermore, a plastic ring is provided on the inner wall of the shell corresponding to the connection end between the sealing body and the contact piece, silicone rubber is filled between the inner wall of the shell and the base, and the silicone rubber is provided at one end of the plastic ring close to the straight wire clamp.

[0008] Furthermore, a connection groove for connecting a wire or cable is provided at the end of the straight wire clamp, a guide tube is provided in the connection groove corresponding to the wire or cable, and the end of the guide tube is connected to the wire sealing body.

[0009] Furthermore, a clamping ring is provided between the retaining ring and the first screw sleeve, and the clamping ring is placed at a corner where the first screw sleeve and the retaining ring are connected and away from one end of the shell.

[0010] The present invention provides a connector that is convenient for replacing terminals and has the following beneficial effects:

[0011] The utility model is connected to the shell through the first screw sleeve, so that after the plug and the socket are connected, they have connection sealing performance and good vibration and impact resistance, so that the terminal is connected to the plug and then connected to the socket, which can improve the stability of signal transmission of the connector of this application, and the straight wire clamp is threadedly connected to the plug through the second screw sleeve, which can firstly improve the stability of the connection between the straight wire clamp and the plug, and secondly facilitate the subsequent replacement of the straight wire clamp, thereby avoiding the need to replace the entire connector, improving practical performance. The utility model is easy to operate and has strong practicality, and effectively solves the problems of the existing connector terminals being inconvenient to replace, poor impact resistance, and easy to cause the contact terminals to loosen, wear or deform under frequent plugging and unplugging operations, resulting in poor connection and affecting the stability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a connector for convenient terminal replacement according to the present invention.

[0013] Figure 2 This is a schematic structural diagram of a connector plug for convenient terminal replacement according to the present invention.

[0014] Figure 3 This is a schematic cross-sectional view of the straight wire clamp of the connector for convenient terminal replacement according to the present invention.

[0015] Figure 4 This is a schematic structural diagram of a straight wire clamp for connectors that facilitates terminal replacement according to the present invention.

[0016] In the figure, 1. shell; 2. first screw sleeve; 3. corrugated ring; 4. gasket; 5. retaining ring; 6. clamping ring; 7. plastic ring; 8. base assembly; 9. straight wire clamp; 10. plug; 11. socket; 12. first cavity; 13. second cavity; 14. contact part; 15. contact piece; 16. sealing body; 17. support spring ring; 18. second screw sleeve. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solution of the present invention in conjunction with the specific embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts are within the scope of protection of the present invention.

[0018] Example 1

[0019] like Figure 1-4 The present invention provides a connector for convenient terminal replacement, comprising a plug 10, a socket 11 and a terminal for connecting to the plug 10, wherein the plug 10 comprises a housing 1 and a base assembly 8 provided in the housing 1, wherein the housing 1 is made of an insulating material, and the end of the plug 10 is provided at a protruding contact portion 14, wherein the contact portion 14 is electrically connected to the socket 11; the base assembly 8 is composed of a base, a sealing body 16, an insulator, a spring ring 17 and a contact 15, wherein the insulator is filled in the base, and the contact 15 is connected to the sealing body 16 through a support spring ring 17 and is arranged in the base, that is, the contact member 15 is arranged at one end of the contact portion 14, and the other end of the contact member 15 is connected to the sealing body 16 through the support spring ring 17 and is arranged in the base. The inner wall of the shell 1 is provided with a plastic ring 7 for increasing the sealing performance of the connection corresponding to the connection end between the sealing body 16 and the contact member 15. Silicone rubber is filled between the inner wall of the shell 1 and the base, and the silicone rubber is provided at one end of the plastic ring 7 close to the straight wire clamp 9 to improve the sealing performance of the plug 10, so that it has good sealing performance during use.

[0020] The output end of the base assembly 8 is connected to a straight wire clamp 9, which is the terminal used to connect the plug 10 and the socket 11 for signal transmission in this application. A second threaded sleeve 18 is sleeved on the connection between the housing 1 and the straight wire clamp 9. The housing 1 is provided with external threads connected to the second threaded sleeve 18. The second threaded sleeve 18 is provided to prevent the threads from loosening, thereby providing excellent vibration and impact resistance. The housing 1 corresponding to the input end of the base assembly 8 is sleeved with a first threaded sleeve 2. The first threaded sleeve 2 is connected to the external threaded sleeve of the housing 1 via an outer nut with internal threads. The first threaded sleeve 2 and the housing 1 are connected by a threaded connection, which can prevent the threads from loosening, and the connection between the socket 11 and the plug 10 has excellent vibration and impact resistance.

[0021] The end of the straight wire clamp 9 is provided with a connection groove for connecting to the socket 11, and a connector is provided in the connection groove corresponding to the needle provided in the socket 11. An extrusion chamber is formed between the first screw sleeve 2 and the housing 1 through a retaining ring 5. A clamping ring 6 is further provided between the retaining ring 5 and the first screw sleeve 2. The clamping ring 6 is placed at the corner where the first screw sleeve 2 and the retaining ring 5 are connected and away from one end of the housing 1. A gasket 4 is provided in the extrusion chamber, which equally divides the extrusion chamber into a first cavity 12 and a second cavity 13. The first cavity 12 and the second cavity 13 are both provided with a corrugated ring 3.

[0022] Example 2

[0023] On the basis of the above embodiment, in order to improve the terminal replacement efficiency and make the socket 11 and the plug 10 have good anti-vibration and shock resistance after being connected, as shown in FIG. Figure 2 The first screw sleeve 2 of the present embodiment is composed of a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are cylindrical in shape, and the diameter of the second connecting portion is larger than that of the first connecting portion. The height of the first connecting portion is 1 / 2 of the height of the second connecting portion. After experimental comparison, the setting of the first screw sleeve 2 of the present application can ensure smooth screwing and has good resistance to vibration and impact. After the present application is assembled according to production requirements and tested for salt spray, solar radiation, dust and water tightness, it is tested and compared with the connector of the straight tail terminal in the prior art by plugging and unplugging test. The test results are as follows;

[0024] 1. Salt spray test conditions: Place the connector in a room at 35°C and apply salt vapor (NaCl50g / 1lH2O) for 15 minutes every 45 minutes for two days. The concentration is 95% (dispersion is 1-10um, and the density of each volume of air is 2-3g / m 3 ).

[0025] 2. Solar radiation test conditions: Place the connector in a room at 45°C and irradiate it with a light source for 5 days with a spectral density of 1120W / m 2 , ultraviolet radiation 68W / m 2 .

[0026] 3. Dust test conditions: Place the connector indoors and expose it to dust at a density of 5±2g / m 3 A dust mixture (70% quartz sand, 15% chalk, 15% kaolin) with a particle size of no more than 200 μm was mixed, the dust was moved at a speed of 10-15 m / s, and the test time was 2 h.

[0027] 4. Watertightness test conditions: at 2*105 Pa (2 kgs / m*c 2 ) under pressure, spray water on the connector at a distance of 1.5-5m for 15 minutes.

[0028] After the connector terminals of the present application and the connectors with straight tail-attached terminals in the prior art were subjected to the above-mentioned test treatment, the minimum working time of the connector test was 1000 hours. The test showed that within the specified time, the connector of the present application can withstand at least 500 plug-in and plug-out cycles, and the electrical connection sealing performance is good, which is 5% higher than the plug-in and plug-out cycle of the straight tail-attached connector in the prior art.

[0029] Based on the above tests, a vibration shock simulation test was also conducted, with vibration: 1-5000 Hz reaching 400m / s 2 (40g); Shock: Multiple times up to 1500 m / s 2 (150g), shock duration ≤ 5ms; single shock reaches 5000 m / s 2 (500g), impact duration ≤ 2ms; linear (centrifugal) acceleration reaches 1962 m / s 2 (200g); The vibration and shock resistance test was carried out under the conditions, and the results showed that the connector with convenient terminal replacement provided by the present application functioned normally during the test without any faults, the straight wire clamp and the plug 10, and the connecting ends of the plug 10 and the socket 11 were not deformed, and there was no visible wear after at least 500 plug-in cycles; the connector with straight tail terminals in the prior art and the connecting ends of the plug 10, the plug 10 and the socket 11 were not deformed, and after at least 500 plug-in cycles, wear marks were visible on the connection, and intermittent disconnection of signal transmission was prone to occur.

[0030] To sum up, the connector with easy terminal replacement provided by this application has good sealing performance and is easy to assemble. Through the above test detection and comparison, it can be seen that the connector with easy terminal replacement provided by this application has good vibration and impact resistance, and has significant technical progress compared with the connector with straight tail-attached terminals in the prior art.

[0031] The utility model assembles the plug 10 according to production requirements, threadably connects the straight wire clamp 9 to the plug 10 through the second screw sleeve 18, and then docks and locks the socket 11 and the plug 10. When replacing, a disassembly tool is used to remove the wire or cable, and then the second screw sleeve 18 is loosened to separate the straight wire clamp 9 from the plug 10 for replacement, thereby effectively solving the problems of the existing connector terminals being inconvenient to replace, having poor impact resistance, and being prone to loosening, wear or deformation of the contact terminals due to frequent plugging and unplugging operations, resulting in poor connection and affecting the stability of signal transmission.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A connector with convenient terminal replacement, comprising a plug (10), a socket (11) and a terminal for connecting to the plug (10), characterized in that: The plug (10) comprises a housing (1) and a base assembly (8) arranged in the housing (1), wherein the base assembly (8) comprises a base, a sealing body (16), an insulator, a spring ring (17) and a contact member (15), wherein the insulator is filled in the base, and the contact member (15) is connected to the sealing body (16) through the spring ring (17) and arranged in the base, and the output end of the base assembly (8) is connected to a straight wire clamp (9), and a second screw sleeve (18) is sleeved at the connection between the straight wire clamp (9) and the housing (1), and the base A first screw sleeve (2) is sleeved on the shell (1) corresponding to the input end of the assembly (8); an extrusion cavity is formed between the first screw sleeve (2) and the shell (1) via a retaining ring (5); a gasket (4) is provided in the extrusion cavity; the gasket (4) equally divides the extrusion cavity into a first cavity (12) and a second cavity (13); a wave ring (3) is provided in each of the first cavity (12) and the second cavity (13); an end of the plug (10) is provided at a protruding contact portion (14); and the contact portion (14) is electrically connected to the socket (11).

2. The connector for convenient terminal replacement according to claim 1, characterized in that: The first screw sleeve (2) consists of a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are cylindrical in shape, the diameter of the second connecting portion is larger than the first connecting portion, and the height of the first connecting portion is 1 / 2 of the height of the second connecting portion.

3. The connector for convenient terminal replacement according to claim 1, characterized in that: A plastic ring (7) is provided on the inner wall of the housing (1) corresponding to the connection end of the sealing body (16) and the contact piece (15), and silicone rubber is filled between the inner wall of the housing (1) and the base, and the silicone rubber is provided on one end of the plastic ring (7) close to the straight wire clamp (9).

4. The connector for convenient terminal replacement according to claim 1, characterized in that: The end of the straight wire clamp (9) is provided with a connection groove for connecting a wire or a cable, a guide tube is provided in the connection groove corresponding to the wire or the cable, and the end of the guide tube is connected to the wire sealing body (16).

5. The connector for convenient terminal replacement according to claim 1, characterized in that: A clamping ring (6) is further provided between the retaining ring (5) and the first screw sleeve (2), and the clamping ring (6) is placed at a corner where the first screw sleeve (2) and the retaining ring (5) are connected and away from one end of the housing (1).

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