A 16-pin explosion-proof connector

Abstract

The utility model discloses a kind of 16PIN explosion-proof connectors, including male end and female end, after being connected by buckling structure fixed after being inserted into each other. Male end includes male end shell part, male end insulator and male end, and male end shell part is the flange panel with first through cavity, male end insulator is located in first through cavity and is separated into front cavity and rear cavity, and male end is mounted in male end insulator and two ends respectively extend into front cavity and rear cavity. Female end includes female end shell part, female end insulator and female end, and female end shell part has second through cavity, female end insulator is located in second through cavity, and female end is one-to-one mutual matching with male end. The connector is shielded by metal shell, with good explosion-proof performance, and male end is the structure of 3PIN power terminal+13PIN signal terminal, which can reduce interference, and buckling structure makes connection firm, and assembly and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to terminal connectors, specifically to a 16-pin explosion-proof connector. Background Technology

[0002] Terminal connectors are crucial components for circuit connections in many fields, including industrial production. However, existing terminal connectors have several shortcomings in certain special environments. For example, in hazardous environments with flammable and explosive gases or dust, the explosion-proof performance of ordinary connectors is inadequate and fails to meet safety requirements; the connection between the male and female terminals of some connectors is not secure enough, easily leading to loosening and affecting the stable connection of the circuit; at the same time, the terminal layout of some connectors is unreasonable, with power terminals and signal terminals mixed together, which can easily cause interference and affect the signal transmission quality; in addition, the complex structural design of some connectors makes installation and maintenance inconvenient, causing many problems in practical use.

[0003] In view of this, it is necessary to develop a new connector to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a 16PIN explosion-proof connector. The purpose of this connector is to provide a firm connection, a reasonable terminal layout, and convenient installation and maintenance.

[0005] To solve the above technical problems, the present invention achieves this through the following solution: The present invention provides a 16PIN explosion-proof connector, including a male end and a female end, wherein the male end and the female end are connected by interlocking, and the male end and the female end are fastened and fixed after being connected by interlocking;

[0006] The public terminal includes:

[0007] The male end shell is a flange panel with a first through cavity extending through both ends. The first through cavity is provided with a first step and a first circular groove and a second circular groove distributed on both sides of the first step.

[0008] A male insulator installed in the first through cavity has one edge abutting against the first step, and the other edge is limited by a first C-shaped spring provided in the first circular groove. The male insulator divides the first through cavity into a front cavity and a rear cavity.

[0009] A male terminal is installed on the male insulator, the first end of which extends out of the front cavity, and the second end of which enters the rear cavity but does not extend beyond the opening of the rear cavity;

[0010] The mother end includes:

[0011] The female end shell has a second cavity that extends through both ends. The second cavity has a second step and a second circular groove that is a certain distance away from the second step.

[0012] The female end insulator has a thicker section disposed within the second through cavity and defined by a second step, and its inner edge is defined by a second C-shaped spring disposed in the second circular groove. The thinner section of the female end insulator is flush with the opening of the second through cavity.

[0013] The female terminal is installed on the female insulator, and the female terminal and the male terminal are matched one-to-one.

[0014] Furthermore, the flange panel is a metal shell.

[0015] Furthermore, the female end shell includes a first metal segment and a second metal segment connected by threads, wherein the female end insulator is disposed in the inner cavity of the first metal segment.

[0016] Furthermore, the female end shell also includes a rubber segment for securing the wire, one end of which is fastened to the outer end of the second metal segment.

[0017] Furthermore, the second circular groove is fitted with a first sealing ring.

[0018] Furthermore, the male terminal is a 16-pin male terminal structure with 3 pins and 13 pins, where the 3 pins are thick pins and are defined as power terminals, and the 13 pins are thin pins and are defined as signal terminals.

[0019] Furthermore, the male end shell has a groove at one end facing away from the female end, and a dust cover is embedded in the groove. The cover of the dust cover can cover the rear cavity.

[0020] Furthermore, the structure in which the male and female ends are connected and then fastened together includes:

[0021] A convex cavity is provided in the rear cavity, and a buckle hole is provided inside the convex cavity;

[0022] A mounting groove is provided on the outer wall of the female end shell;

[0023] A press-type mechanism is provided in the mounting groove. The press-type mechanism has a buckle. After the male end and the female end are inserted, the buckle can enter the buckle hole to form a fastening structure.

[0024] Furthermore, the first end of the mounting groove has a C-shaped notch;

[0025] The pressing mechanism includes:

[0026] The pressing component has a cylindrical structure at one end, which abuts against the C-shaped groove. An undercut is provided between the cylinder and the pressing part of the pressing component. The lower end of the pressing part of the pressing component is a circular groove.

[0027] A spring is disposed in the circular groove, with its lower end abutting against the bottom surface of the mounting groove;

[0028] A limiting member is provided at the second end of the mounting groove, and the limiting member abuts against the pressing member to form a limiting structure.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. The explosion-proof connector of this utility model has excellent explosion-proof performance: the male end shell and the female end shell are made of metal, which realizes full shielding of the terminals and can effectively prevent external interference. At the same time, the metal shell has high strength and can withstand a certain impact. Combined with the first sealing ring and other sealing structures, the explosion-proof performance of the connector is improved.

[0031] 2. The explosion-proof connector of this utility model has a firm and reliable connection: by setting a snap-fit ​​fixing structure, the male and female ends can be firmly snapped together after being inserted, avoiding loosening or falling off, and ensuring the stability of the circuit connection.

[0032] 3. The explosion-proof connector of this utility model has a reasonable terminal layout: the male terminal adopts a 3PIN+13PIN structure, which separates the power terminal and the signal terminal, reduces the interference of power transmission on signal transmission, and improves the signal transmission quality.

[0033] 4. The explosion-proof connector of this utility model is easy to install and maintain: the segmented design of the female end shell and the press-type snap-fit ​​mechanism make the assembly and disassembly of the connector simple and easy to install and maintain; the dust cover also facilitates the protection of the rear cavity and male terminal. Attached Figure Description

[0034] Figure 1 This is a diagram showing the pre-mating state of the male and female terminals of the 16PIN explosion-proof connector of this utility model.

[0035] Figure 2 This is a cross-sectional view of the female end of this utility model.

[0036] Figure 3 This is a structural diagram of the male end of this utility model.

[0037] Figure 4 This is a structural diagram of the male end shell of this utility model from a first-view perspective.

[0038] Figure 5 This is a structural diagram of the male end shell of this utility model from a second perspective.

[0039] Figure 6This is a structural diagram of the pressing mechanism of this utility model.

[0040] The following are labels in the attached diagram: female end 1, male end 2, female end shell 11, pressing mechanism 12, female end insulator 13, dust cover 21, male end shell 22, male terminal 23, first sealing ring 24, male end insulator 25, first metal segment 111, second metal segment 112, rubber segment 113, pressing element 121, spring 122, buckle 123, limiting element 124, first circular groove 221, first step 222, second circular groove 223, protrusion 224, buckle hole 225. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0042] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1: The specific structure of this utility model is as follows:

[0044] Please refer to the appendix. Figure 1-6 The present invention provides a 16PIN explosion-proof connector, comprising a male end 2 and a female end 1, wherein the male end 2 and the female end 1 are connected by interlocking and are then fastened together for fixation.

[0045] The public terminal 2 includes:

[0046] The male end shell 22 is a flange panel. The flange panel has a first through cavity that extends through both ends. The first through cavity has a first step 222 and a first circular groove 221 and a second circular groove 223 distributed on both sides of the first step 222. The flange panel is rectangular, and the first through cavity inside it is a circular cavity. Mounting holes are provided at all four corners of the flange panel, and screws and nuts are provided at each mounting hole.

[0047] A male insulator 25 is installed in the first through cavity. One edge of the male insulator 25 abuts against the first step, and the other edge is limited by a first C-shaped spring provided in the first circular groove 221. The male insulator 25 divides the first through cavity into a front cavity and a rear cavity.

[0048] A male terminal 23 is installed on the male insulator 25. The first end of the male terminal 23 extends out of the front cavity, and the second end enters the rear cavity without exceeding the opening of the rear cavity.

[0049] The female end 1 includes:

[0050] The female end shell 11 has a second through cavity that extends through both ends. The second through cavity is provided with a second step and a second circular groove that is a certain distance away from the second step.

[0051] The female end insulator 13 has a thicker section disposed in the second through cavity and defined by a second step, and its inner end edge is defined by a second C-shaped spring 14 disposed in the second circular groove. The thinner section of the female end insulator 13 is flush with the opening of the second through cavity.

[0052] The female terminal installed on the female insulator 13 is paired with the male terminal 23 in a one-to-one manner.

[0053] The flange panel is a metal shell. The female end shell 11 includes a first metal section 111 and a second metal section 112 connected by threads, wherein the female end insulator 13 is disposed in the inner cavity of the first metal section 111. The male end shell 22 and the female end shell 11 fully shield the terminals, which can prevent external interference and also has an anti-trampling function.

[0054] The female end shell 11 also includes a rubber segment 113, which is used to fix the wire, and one end of the rubber segment 113 is fastened and fixed to the outer end of the second metal segment 112.

[0055] The second circular groove 223 is fitted with a first sealing ring 24, which is used for waterproofing. After the male end 2 and the female end 1 are inserted into each other, the insertion end of the female end shell 11 is inserted into the rear cavity and the outer wall of the insertion end of the female end shell 11 abuts against the first sealing ring 24, thereby achieving the sealing and waterproofing performance of the connection, and the waterproofing level reaches IP44.

[0056] The male terminal 23 has a 16-pin male terminal structure consisting of a 3-pin + 13-pin connector, where the 3-pin connector is a thick pin and is defined as a power terminal, and the 13-pin connector is a thin pin and is defined as a signal terminal. Correspondingly, the female terminal also has 16 pins.

[0057] The male end shell 22 has a groove at one end facing away from the female end 1, and a dust cover 21 is embedded in the groove. The cover of the dust cover 21 can cover the rear cavity.

[0058] The structure in which the male end 2 and the female end 1 are connected by a snap-fit ​​joint includes:

[0059] A convex cavity 224 is provided in the rear cavity, and a buckle hole 225 is provided inside the convex cavity 224;

[0060] A mounting groove is provided on the outer wall of the female end shell 11;

[0061] A pressing mechanism 12 is provided in the mounting groove. The pressing mechanism 12 has a buckle 123. After the male end 2 and the female end 1 are inserted, the buckle 123 can enter the buckle hole 225 to form a fastening structure.

[0062] The first end of the mounting slot has a C-shaped opening;

[0063] The pressing mechanism 12 includes:

[0064] The pressing member 121 has a cylindrical structure at one end, which abuts against the C-shaped groove. The buckle 123 is provided between the cylinder and the pressing part of the pressing member 121. The lower end of the pressing part of the pressing member 121 is a circular groove.

[0065] Spring 122 is disposed in the circular groove, and its lower end abuts against the bottom surface of the mounting groove;

[0066] A limiting member 124 is provided at the second end of the mounting groove, and the limiting member 124 abuts against the pressing member 121 to form a limiting structure.

[0067] Example 2:

[0068] The following are the assembly, insertion, fixing, and separation procedures for the male end 2 and the female end 1 of this utility model:

[0069] I. Male End Assembly: The male end shell 22, as the basic component, is a square flange panel. Its internal first cavity is a circular cavity. Screws are screwed into the mounting holes at its four corners, and then nuts are tightened to ensure the stability of the male end shell during subsequent installation and use. The first cavity has a step 222, and a first circular groove 221 and a second circular groove 223 distributed on both sides of the step 222. The male end insulator 25 is placed inside the first cavity, with one edge tightly abutting the first step 222. Next, a first C-shaped spring is placed in the first circular groove 221. The elasticity of the first C-shaped spring firmly holds the other edge of the male end insulator 25 in place. At this point, the male end insulator 25 divides the first cavity into a front cavity and a rear cavity.

[0070] The male terminal 23 is mounted on the male insulator 25. The first end of the male terminal 23 must extend beyond the front cavity, while the second end enters the rear cavity, but its length must be strictly controlled to ensure it does not exceed the opening of the rear cavity. The male terminal 23 adopts a 16-pin male terminal structure with 3 pins and 13 pins, where the 3 pins are thicker pins used as power terminals, and the 13 pins are thinner pins used as signal terminals. This layout effectively avoids interference between power transmission and signal transmission. A first sealing ring 24 is embedded in the second circular groove 223. The first sealing ring 24 enhances the sealing performance of the male terminal, preventing dust, liquids, and other impurities from entering the connector, thereby improving the explosion-proof effect.

[0071] A dust cover 21 is embedded in the groove surface of the male terminal 22 facing away from the female terminal 1, ensuring that the cover of the dust cover 21 can completely cover the rear cavity. When the connector is not in use, the dust cover 21 can effectively prevent dust, impurities, etc. from entering the rear cavity, thus protecting the second end of the male terminal 23.

[0072] II. Female End Assembly: The female end shell 11 consists of a first metal segment 111 and a second metal segment 112 connected by threads. First, the female end insulator 13 is placed in the inner cavity of the first metal segment 111. The thicker section of the female end insulator 13 is limited by the second step within the second through cavity. Then, the second C-shaped spring 14 is placed in the second circular groove at a certain distance from the second step. The elasticity of the second C-shaped spring 14 limits the inner edge of the female end insulator 13, ensuring that the thinner section of the female end insulator 13 is flush with the opening of the second through cavity. The corresponding 16-pin female terminal is installed on the female end insulator 13, ensuring that the female terminal and male terminal 23 can be matched one-to-one. A rubber segment 113 is fastened and fixed to the outer end of the second metal segment 112. The rubber segment 113 is used for wire fixing; its good elasticity and insulation effectively fix the cable, preventing loosening, and also provide a certain degree of sealing and protection. An installation groove is opened on the outer wall of the female end shell 11, with the first end of the groove being a C-shaped opening. The pressing mechanism 12 is installed in the mounting groove. One end of the pressing member 121 of the pressing mechanism 12 is cylindrical, and the cylinder is inserted into the C-shaped groove. An inverted buckle 123 is provided between the cylinder and the pressing part of the pressing member 121. A circular groove is provided at the lower end of the pressing part of the pressing member 121, and a spring 122 is placed in the circular groove so that the lower end of the spring 122 abuts against the bottom surface of the mounting groove. A limiting member 124 is provided at the second end of the mounting groove. The limiting member 124 abuts against the pressing member 121 to form a limiting structure, ensuring the stability and reliability of the pressing mechanism 12 during operation.

[0073] III. Insertion and fixing of male end 2 and female end 1:

[0074] When using the 16PIN explosion-proof connector of this invention, align the male end 2 and the female end 1, and slowly perform the insertion operation. During the insertion process, the buckle 123 of the pressing mechanism 12 in the mounting groove of the female end 1 will gradually approach the snap hole 225 in the rear cavity 224 of the male end 2. When the insertion is in place, the buckle 123 will accurately enter the snap hole 225, thereby realizing the snap-fit ​​fixation between the male end and the female end, ensuring the firmness of the circuit connection, and preventing loosening or falling off during use.

[0075] Separation operation:

[0076] IV. Separation of Male Terminal 2 and Female Terminal 1: When it is necessary to separate male terminal 2 and female terminal 1, press the pressing member 121 with your finger. The pressing member 121 moves downward under force, compressing the spring 122. At the same time, the snap fastener 123 disengages from the snap hole 225 as the pressing member 121 moves, allowing male terminal 2 and female terminal 1 to be easily separated. The male terminal shell 22 and female terminal shell 11 are made of metal, achieving full shielding of the terminals. This not only effectively prevents external interference but also provides a certain degree of anti-stepping function. Combined with the sealing structure such as the first sealing ring 24, the explosion-proof performance of the connector is greatly improved, making it suitable for hazardous environments with flammable and explosive gases or dust. In addition, the segmented design of the female terminal shell 11 and the pressing-type snap-fit ​​mechanism make the assembly and disassembly of the connector simple, facilitating installation and maintenance.

[0077] In summary, the explosion-proof connector of this utility model has excellent explosion-proof performance: the male and female end shells are made of metal, which achieves full shielding of the terminals and can effectively prevent external interference. At the same time, the metal shell has high strength and can withstand a certain impact. Combined with sealing structures such as the first sealing ring, the explosion-proof performance of the connector is improved.

[0078] This utility model of explosion-proof connector provides a firm and reliable connection: by setting a snap-fit ​​fixing structure, the male and female ends can be firmly snapped together after being inserted, avoiding loosening or falling off and ensuring the stability of the circuit connection.

[0079] The explosion-proof connector of this utility model has a reasonable terminal layout: the male terminal adopts a 3PIN+13PIN structure, which separates the power terminal and the signal terminal, reduces the interference of power transmission on signal transmission, and improves the signal transmission quality.

[0080] This utility model of explosion-proof connector is easy to install and maintain: the segmented design of the female end shell and the press-type snap-fit ​​mechanism make the assembly and disassembly of the connector simple and easy to install and maintain; the dust cover also makes it easy to protect the rear cavity and male terminal.

[0081] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A 16-pin explosion-proof connector, comprising a male terminal (2) and a female terminal (1), wherein the male terminal (2) and the female terminal (1) are mated together, characterized in that, The male end (2) and the female end (1) are connected by plugging and fastening. The public terminal (2) includes: Male end shell (22), which is a flange panel, has a first through cavity through both ends, and a first step (222) and a first circular groove (221) and a second circular groove (223) distributed on both sides of the first step (222). A male insulator (25) installed in the first through cavity has one edge abutting against the first step, and the other edge is limited by a first C-shaped spring provided in the first circular groove (221). The male insulator (25) divides the first through cavity into a front cavity and a rear cavity. A male terminal (23) is installed on the male insulator (25), the first end of which extends out of the front cavity and the second end enters the rear cavity without exceeding the opening of the rear cavity; The mother end (1) includes: The female end shell (11) has a second through cavity that extends through both ends. The second through cavity is provided with a second step and a second circular groove that is a certain distance away from the second step. The female end insulator (13) has a thick section located in the second cavity and defined by a second step, and its inner edge is defined by a second C-shaped spring (14) located in the second circular groove. The thin section of the female end insulator (13) is flush with the opening of the second cavity. The female terminal installed on the female end insulator (13) is paired with the male terminal (23) in a one-to-one manner.

2. A 16-pin explosion-proof connector according to claim 1, characterized in that, The flange panel is a metal shell.

3. A 16-pin explosion-proof connector according to claim 1, characterized in that, The female end shell (11) includes a first metal segment (111) and a second metal segment (112) connected by threads, wherein the female end insulator (13) is disposed in the inner cavity of the first metal segment (111).

4. A 16-pin explosion-proof connector according to claim 3, characterized in that, The female end shell (11) also includes a rubber segment (113), which is used to fix the wire, and one end of the rubber segment (113) is fastened to the outer end of the second metal segment (112).

5. A 16-pin explosion-proof connector according to claim 1, characterized in that, The second circular groove (223) is fitted with a first sealing ring (24).

6. A 16-pin explosion-proof connector according to claim 1, characterized in that, The male terminal (23) is a 16-pin male terminal structure with 3PIN+13PIN, where 3PIN is a thick pin terminal and is defined as a power terminal, and 13PIN is a thin pin terminal and is defined as a signal terminal.

7. A 16-pin explosion-proof connector according to claim 1, characterized in that, The male end shell (22) has a groove at one end facing away from the female end (1), and a dust cover (21) is embedded in the groove. The cover of the dust cover (21) can cover the rear cavity.

8. A 16-pin explosion-proof connector according to claim 1, characterized in that, The structure in which the male end (2) and the female end (1) are connected by a plug-in joint and then fastened together includes: A convex cavity (224) is provided in the rear cavity, and a buckle hole (225) is provided in the convex cavity (224); A mounting groove is provided on the outer wall of the female end shell (11); A pressing mechanism (12) is provided in the mounting groove. The pressing mechanism (12) has a buckle (123). After the male end (2) and the female end (1) are inserted, the buckle (123) can enter the buckle hole (225) to form a fastening structure.

9. A 16-pin explosion-proof connector according to claim 8, characterized in that, The first end of the mounting slot has a C-shaped opening; The pressing mechanism (12) includes: The pressing member (121) has a cylindrical structure at one end, which abuts against the C-shaped groove. The buckle (123) is provided between the cylinder and the pressing part of the pressing member (121). The lower end of the pressing part of the pressing member (121) is a circular groove. A spring (122) is provided in the circular groove, and its lower end abuts against the bottom surface of the mounting groove; A limiting member (124) is provided at the second end of the mounting groove, and the limiting member (124) abuts against the pressing member (121) to form a limiting structure.

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