A signal transmission connector for a PLC controller

Abstract

This utility model discloses a signal transmission connector for a PLC controller, relating to the field of connector technology. It includes a connector body and a housing. The connector body has terminals on its side ends. Protective layers are fixedly installed on the two inner sides of the housing. At least two sponge boards are fixedly installed on the inner side of each protective layer. A groove is provided at the bottom end of each protective layer. A fixing plate is provided on the inner side of each housing. Multiple heating strips are fixedly installed on the side ends of each fixing plate. The two ends of the protective layers are connected to the housing via silicone rubber. Preheating by the heating strips raises the temperature inside the housing. The silicone rubber on both sides of the protective layer expands due to heat, thereby increasing the seal between the protective layer and the housing. Twisting the collar drives the rotating rod to rotate. The end of the collar rotates within the second support rod, causing the second support rod to slide within the first support rod. Adjusting the overall length of the first and second support rods allows for different connection distances and spatial adaptation requirements.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a signal transmission connector for a PLC controller. Background Technology

[0002] Currently, existing connectors (such as patent publication number: CN217158728U) disclose signal transmission connectors that provide a metal housing with a first through hole and a signal module with a protrusion. The protrusion passes through the first through hole from the first surface to be riveted and fixed on the second surface, so that the signal module can be reliably fixed to the metal housing.

[0003] In the aforementioned patent, the connector has blind holes inside, where moisture easily accumulates. When the ambient temperature difference of the device is large, the air inside the connector liquefies upon cooling, forming water droplets on the metal contacts or PCB board. The moisture forms a water film between the contacts, leading to signal crosstalk. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a signal transmission connector for PLC controllers, solving the technical problem of signal crosstalk caused by large temperature differences in the operating environment, where the air inside the connector liquefies upon cooling, forming water droplets on the metal contacts or PCB board, and the water vapor forms a water film between the contacts.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A signal transmission connector for a PLC controller includes a connector body and a housing, wherein the side end of the connector body is provided with a terminal block;

[0007] The outer shell has protective layers fixedly installed on its two inner sides. At least two sponge boards are fixedly installed on the inner side of each protective layer. A groove is provided at the bottom end of each protective layer. A fixing plate is provided on the inner side of each outer shell. Multiple heating strips are fixedly installed on the side end of each fixing plate.

[0008] Preferably, each of the fixing plates has an interface fixedly installed at its top end, and each of the sponge plates has a groove on its side end;

[0009] The connector body has two side plates at its side end, and each side plate has a retainer at its side end.

[0010] Preferably, each of the side plates is rotatably mounted with a support rod at its side end, and each of the support rods is rotatably mounted with a rotating rod inside;

[0011] Each of the rotating rods is provided with a support rod 2 at its end, and a collar is rotatably mounted on the surface of each of the rotating rods;

[0012] Each of the protective layers is made of metal foil material, and both ends of the protective layer are connected to the outer shell by silicone rubber.

[0013] Compared with the prior art, the present invention has the following beneficial effects;

[0014] In this invention, the sponge board has a honeycomb structure, which can absorb excess moisture inside the connector body. It captures moisture by utilizing its own structural characteristics. The absorbed moisture flows along its guide to the groove at the bottom of the protective layer. It supplies power to multiple heating strips on the fixing plate through the wire harness connection interface. The heating strips preheat inside the protective layer, thereby evaporating the moisture in the sponge board and the groove. The moisture is removed by active heating, ensuring a dry environment inside the connector.

[0015] In this utility model, a rotating rod is rotatably installed inside the first support rod, and a second support rod is provided at the end of the rotating rod. A collar is rotatably installed on the surface of the second support rod. Twisting the collar causes the rotating rod to rotate, and the end of the collar rotates inside the second support rod, so that the second support rod slides inside the first support rod. The overall length of the first and second support rods can be adjusted to meet different connection distances and spatial adaptation requirements. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a structural diagram of the connector body of this utility model;

[0018] Figure 2 This is a structural diagram of the outer shell of this utility model;

[0019] Figure 3 This is a structural diagram of the protective layer of this utility model;

[0020] Figure 4 This is a structural diagram of the support component of this utility model.

[0021] In the diagram: 11. Connector body; 12. Housing; 13. Protective layer; 14. Groove; 15. Sponge board; 16. Fixing plate; 17. Heating strip; 18. Interface; 19. Side plate; 21. Support rod one; 22. Rotating rod; 23. Collar; 24. Support rod two. Detailed Implementation

[0022] This application provides a signal transmission connector for a PLC controller, which effectively solves the problem of signal crosstalk caused by the large temperature difference in the operating environment, where the air inside the connector liquefies upon cooling, forming water droplets on the metal contacts or PCB board, and water vapor forming a water film between the contacts. The sponge board has a honeycomb structure, which can absorb excess water vapor inside the connector body. It captures water vapor by utilizing its own structural characteristics, and the absorbed water vapor flows along its guide to the groove at the bottom of the protective layer. It supplies power to multiple heating strips on the fixing plate through the wire harness connection interface. The heating strips preheat inside the protective layer, thereby evaporating the water vapor in the sponge board and the grooves. The water vapor is removed by active heating, ensuring a dry environment inside the connector.

[0023] Example:

[0024] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem that when the ambient temperature difference of the device is large, the air inside the connector liquefies upon cooling, forming water droplets on the metal contacts or PCB board, and the water vapor forms a water film between the contacts, leading to signal crosstalk. The overall idea is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a signal transmission connector for a PLC controller, including a connector body 11 and a housing 12. The side end of the connector body 11 is provided with wiring terminals, and the connector body 11 is connected to the PLC controller through both ends to transmit data to the PLC controller.

[0026] A protective layer 13 is fixedly installed on the two inner sides of the outer shell 12. At least two sponge boards 15 are fixedly installed on the inner side of each protective layer 13. A groove 14 is provided at the bottom end of each protective layer 13. A fixing plate 16 is provided on the inner side of each outer shell 12. Multiple heating strips 17 are fixedly installed on the side end of each fixing plate 16. The outer shell 12 covers the side end of the connector body 11. Through the multiple sponge boards 15, the sponge boards 15 have a honeycomb structure inside. The sponge boards 15 absorb excess water vapor inside the connector body 11. Since the sponge boards 15 are installed vertically, the water vapor absorbed by the sponge boards 15 flows into the inside of the groove 14 through the guide of the sponge boards 15. Power is supplied to the heating strips 17 through the wire harness connection interface 18, so that the heating strips 17 are preheated inside the protective layer 13. The heating strips 17 evaporate the water vapor inside the sponge boards 15 and the groove 14.

[0027] Each fixed plate 16 has an interface 18 fixedly installed at its top end, and each sponge plate 15 has a groove on its side end. The interface 18 is connected to the wire harness to supply power to the inside of the fixed plate 16 and the heating strip 17.

[0028] The connector body 11 has two side plates 19 at its side end. Each side plate 19 has a retainer at its side end. The support rod 21 can rotate at the side end of the side plate 19. The top of the support rod 21 has a ball sleeve structure. The support rod 21 can rotate at the side end of the side plate 19 to adjust the angle.

[0029] Each side plate 19 has a support rod 21 rotatably mounted on its side end. Each support rod 21 has a rotating rod 22 rotatably mounted inside it. By rotating the rotating rod 22, the rotating rod 22 rotates inside the support rod 21. The rotating rod 22 rotates in the positive direction inside the support rod 21.

[0030] Each rotating rod 22 is provided with a support rod 24 at its end. Each rotating rod 22 is rotatably mounted with a collar 23. By twisting the collar 23, the collar 23 drives the rotating rod 22 to rotate. At the same time, the end of the collar 23 rotates inside the support rod 24. The thread helix angle of the rotating rod 22 and the support rod 24 is less than the friction angle. The rotating rod 22 exerts a force on the support rod 24, allowing the support rod 24 to slide inside the support rod 21 to adjust the length of the support rod 21 and the support rod 24.

[0031] Each protective layer 13 is made of metal foil material. The two ends of the protective layer 13 are connected to the outer shell 12 by silicone rubber. The protective layer 13 adds protection to the inside of the connector body 11, increasing the electromagnetic resistance of the connector body 11 itself. At the same time, the two ends of the protective layer 13 are fixed to the inside of the outer shell 12 by silicone rubber. With the preheating of the heating strip 17, the inside of the outer shell 12 gradually heats up. At the same time, the silicone rubber on both sides of the protective layer 13 expands due to heat, increasing the sealing performance of the protective layer 13 and the outer shell 12.

[0032] Working principle:

[0033] The first step involves the connector body 11, which has terminals on its side for data transmission via connection to a PLC controller. Two inner protective layers 13 are fixed to the connector body 11, with at least two sponge plates 15 mounted inside each layer. These sponge plates 15 have a honeycomb structure, absorbing excess moisture from the connector body 11. Due to their vertical installation, the absorbed moisture flows along the guide to the groove 14 at the bottom of the protective layer 13. The installation angle and structural design create a directional flow path for the moisture, concentrating it in the groove 14 for processing. An interface 18 is located at the top of the fixing plate 16 on the side of the protective layer 13. Power is supplied to multiple heating strips 17 on the fixing plate 16 via the wiring harness connection interface 18. The heating strips 17 preheat inside the protective layer 13, evaporating the moisture in the sponge plates 15 and the groove 14. This active heating method removes moisture, ensuring a dry environment inside the connector.

[0034] Two side plates 19 are provided on the side end of the connector body 11. A support rod 21 is rotatably installed on the side end of the side plate 19. The top of the support rod 21 is a ball sleeve structure, which can be rotated and adjusted at the side end of the side plate 19. By rotating the support rod 21, different installation and connection requirements can be met, and the position and posture can be flexibly adjusted. A rotating rod 22 is rotatably installed inside the support rod 21. A support rod 24 is provided at the end of the rotating rod 22. A collar 23 is rotatably installed on the surface. Twisting the collar 23 drives the rotating rod 22 to rotate. The end of the collar 23 rotates inside the support rod 24. The thread helix angle of the rotating rod 22 and the support rod 24 is less than the friction angle. The rotating rod 22 exerts a force on the support rod 24, causing the support rod 24 to slide inside the support rod 21. The overall length of the support rod 21 and the support rod 24 can be adjusted to meet different connection distance and space adaptation requirements.

[0035] The second step involves using metal foil material for the protective layer 13. This protective layer 13 is installed inside the connector body 11. The properties of the metal foil material increase the electromagnetic resistance of the connector body 11, resisting external electromagnetic interference and ensuring signal transmission stability. The two ends of the protective layer 13 are connected to the outer shell 12 through silicone rubber. The heating strip 17 preheats the inner side of the outer shell 12, causing the silicone rubber on both sides of the protective layer 13 to expand due to heat. This increases the sealing between the protective layer 13 and the outer shell 12, improving the overall protective performance of the connector and preventing the intrusion of external debris, moisture, etc.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A signal transmission connector for a PLC controller comprising a connector body (11) and a housing (12), characterized in that, The connector body (11) is provided with wiring terminals on its side end; The outer shell (12) is fixedly installed with protective layers (13) on two inner sides, and at least two sponge boards (15) are fixedly installed on the inner side of each protective layer (13). A groove (14) is provided at the bottom end of each protective layer (13). Each of the outer shells (12) has a fixing plate (16) on its inner side, and a plurality of heating strips (17) are fixedly installed on the side end of each fixing plate (16).

2. A signal transmission connector for a PLC controller as defined in claim 1, wherein, Each of the fixed plates (16) has an interface (18) fixedly installed at its top end, and each of the sponge plates (15) has a groove on its side end.

3. A signal transmission connector for a PLC controller according to any one of claims 1-2, characterized in that, The connector body (11) has two side plates (19) at its side end, and each side plate (19) has a card holder at its side end.

4. A signal transmission connector for a PLC controller as defined in claim 3, wherein, Each of the side plates (19) is rotatably mounted with a support rod (21) at its side end, and each of the support rods (21) is rotatably mounted with a rotating rod (22) inside.

5. A signal transmission connector for a PLC controller as defined in claim 4, wherein, Each of the rotating rods (22) is provided with a support rod (24) at its end, and a collar (23) is rotatably mounted on the surface of each of the rotating rods (22).

6. A signal transmission connector for a PLC controller as defined in claim 1, wherein, Each of the protective layers (13) is made of metal foil material, and the two ends of the protective layer (13) are connected to the outer shell (12) by silicone rubber.

Images