Waterproof connector with side lock plate

Abstract

The utility model relates to the technical field of electric connector discloses a waterproof connector with side lock plate, including first plug connector and second plug connector, first plug connector is provided with first casing, second plug connector is provided with second casing, and the outside of second casing is provided with the ring of protruding, first casing outside is provided with side plate a and side plate b, and side plate a and side plate b all are provided with positioning hole, and the board surface of side plate a still is provided with protruding part, and protruding part and side plate a combination form the shape of containing groove, the utility model has the following advantages: 1, first plug connector can be fixed on the equipment through only one screw or rivet, simplifies the installation step, and improves the stability, 2, after first plug connector and second plug connector mutually plug in, the ring can abut against first plug connector inside, not only can make first plug connector inside seal, improve waterproof performance, still can make first plug connector and second plug connector tightly connect through the elastic expansion of material, and it is not easy to fall off.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a waterproof connector with a side locking plate. Background Technology

[0002] The demand for waterproof connectors is growing in fields such as vehicle electrical connections, outdoor lighting, industrial equipment, and household appliances, especially in harsh environments such as humid and dusty conditions, where higher requirements are placed on the sealing and stability of connectors. Currently, most waterproof connectors on the market employ complex sealing structures or additional waterproof rubber ring designs, such as the connector plug disclosed in Chinese patent CN217934485U. While these achieve a certain level of waterproofing, they suffer from cumbersome installation and high costs. Furthermore, traditional connector fixing methods typically rely on multiple screws or clips, which not only increases assembly time but can also lead to unstable connections due to loosening. For example, some lighting connectors are fixed using adhesive or simple clips, which are prone to detachment after prolonged use, affecting the normal operation of the equipment. In view of this, the inventors have developed a new invention. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a waterproof connector with a side locking plate, which has the advantages of easy installation and good sealing performance.

[0004] To achieve the above objectives, this utility model provides a waterproof connector with a side locking plate, comprising a first connector and a second connector. The first connector is provided with a first housing, and the first housing has an internal cavity with an open end. A first connecting terminal group is provided in the cavity, and one end of the first connecting terminal group extends outward from the bottom of the cavity through the first housing. A positioning strip is provided on the side wall of the cavity. The second connector is provided with a second housing that mates with the cavity. The front end of the second housing is provided with a socket, and the socket is provided with a second connecting terminal group. One end of the second connecting terminal group extends outward from the rear end of the second housing. The second housing is provided with a positioning groove that mates with the positioning strip. A protruding ring is provided on the outside of the second housing, and the ring can abut tightly against the inner wall of the cavity.

[0005] The first housing is provided with side plate a and side plate b on the outside. Both side plate a and side plate b are provided with positioning holes. The side plate a is also provided with a protruding part on its surface. The protruding part and side plate a are combined to form a receiving groove shape.

[0006] Furthermore, the first connection terminal group, the second connection terminal group, and the number of sockets are the same, and the first connection terminal group and the second connection terminal group include at least power pins and signal conduction pins.

[0007] Furthermore, a partition is provided on the outside of the second housing to divide the second housing into a front housing and a rear housing. A positioning groove and an annular ring are provided on the front housing, and the rear housing is provided with several limiting plates, which cooperate with the rear housing to form an annular groove.

[0008] Furthermore, side plate a and side plate b are centrally symmetrical and parallel to each other, with side plate a offset to one side of the first housing and side plate b offset to the other side of the first housing.

[0009] Furthermore, the end of the first connecting terminal group extending outside the first housing and the end located inside the receiving groove are both plug-in ends, and the end of the second connecting terminal group extending outside the second housing is a welding end, with a welding joint provided at the welding end of the second connecting terminal group.

[0010] Beneficial Effects: Compared with the prior art, the waterproof connector with a side locking plate of this utility model includes a first connector and a second connector. The first connector is provided with a first housing, and the second connector is provided with a second housing. A protruding ring is provided on the outside of the second housing. Side plate a and side plate b are provided on the outside of the first housing. Both side plate a and side plate b are provided with positioning holes. A protrusion is also provided on the surface of side plate a. The protrusion and side plate a combine to form a receiving groove shape. This utility model has the following advantages: 1. The first connector can be fixed to the equipment with only one screw or rivet, simplifying the installation steps and improving stability; 2. After the first connector and the second connector are plugged into each other, the ring can abut against the inside of the first connector, which can not only seal the inside of the first connector and improve the waterproof performance, but also make the first connector and the second connector tightly connected through the elastic expansion of the material, making it difficult to fall off. Attached Figure Description

[0011] Figure 1 This is a schematic diagram showing the insertion state of the first and second connectors of this utility model.

[0012] Figure 2 This is a three-dimensional structural diagram of the first connector of this utility model.

[0013] Figure 3 This is a schematic diagram of the front structure of the first connector of this utility model.

[0014] Figure 4 This is a reference diagram for installing the first connector of this utility model.

[0015] Figure 5 This is a schematic diagram of the front end structure of the second connector of this utility model.

[0016] Figure 6 This is a schematic diagram of the rear end structure of the second connector of this utility model.

[0017] The reference numerals in the figures include:

[0018] First connector--1, First housing--11, Receiving cavity--12, Positioning strip--13, Side plate a--14, Side plate b--15, Positioning hole--16, Protrusion--17, Second connector--2, Second housing--21, Insertion hole--22, Positioning groove--23, Ring--24, Partition--25, Front housing--26, Rear housing--27, Limiting plate--271, Annular groove--272, Limiting block--273, First connecting terminal group--3, Second connecting terminal group--31, Power pin--32, Signal conduction pin--33, Solder joint--34. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1 to 6 This utility model will be described in detail.

[0020] This utility model discloses a waterproof connector with a side locking plate, comprising a first connector 1 and a second connector 2. The first connector 1 is provided with a first housing 11, and the first housing 11 has an internal accommodating cavity 12 with an open end. The accommodating cavity 12 is provided with a first connecting terminal group 3, one end of which extends outward from the bottom of the accommodating cavity 12 through the first housing 11. The side wall of the accommodating cavity 12 is provided with a positioning strip 13. The second connector 2 is provided with a second housing 21 that mates with the accommodating cavity 12. The front end of the second housing 21 is provided with a socket 22, and the socket 22 is provided with a second connecting terminal group 31. One end of the second connecting terminal group 31 extends outward from the rear end of the second housing 21. Both the first connecting terminal group 3 and the second connecting terminal group 31 are composed of multiple independent pins. The size of the socket 22 corresponds to the size of the pins. When the second housing 21 is inserted into the accommodating cavity 12, the first connecting terminal group 3 is inserted into the socket 22 and electrically connected to the second connecting terminal group 31. The second housing 21 is provided with a positioning groove 23 that mates with the positioning strip 13. A protruding ring 24 is provided on the outside of the second housing 21, which can tightly abut against the inner wall of the receiving cavity 12. During use, the pin arrangement of the first connecting terminal group 3 may be asymmetrical. With the positioning groove 23 and the positioning strip 13, the second connector 2 can only be inserted into the first connector 1 at a specific angle, ensuring that the first connecting terminal group 3 is accurately inserted into the socket 22, preventing misalignment that could damage the pins and improving safety. Both the first connector 1 and the second connector 2 are made of plastic. The outer diameter of the ring 24 is slightly larger than the inner diameter of the receiving cavity 12. After the first connector 1 and the second connector 2 are inserted into each other, the ring 24 abuts against the inner wall of the receiving cavity 12. This not only seals the inside of the first connector 1, improving waterproofing, but also allows the elastic expansion of the material to tightly connect the first connector 1 and the second connector 2, preventing them from easily falling off.

[0021] The first housing 11 is externally provided with side plates a14 and b15, both of which have positioning holes 16. The side plate a14 also has a protruding portion 17, which, together with the side plate a14, forms a receiving groove. The first connector 1 can be fixed to the equipment with only one screw or rivet, simplifying the installation process and improving stability. Specifically, see... Figure 4 The first connector 1 is fixedly installed inside various electronic devices. The positioning hole 16 of the side plate b15 mates with a specific protrusion provided inside the device. The side plate a14 is fixed inside the device using fasteners such as screws and rivets. The fasteners can be general-purpose parts or can be made of materials such as screws, rivets, etc. Figure 4 The screw shown has a special shape, and the nut of the screw can be positioned with the protrusion 17 to prevent the screw from slipping when the nut is installed or removed.

[0022] The first connecting terminal group 3, the second connecting terminal group 31, and the number of sockets 22 are the same. The first connecting terminal group 3 and the second connecting terminal group 31 include at least power pins 32 and signal conduction pins 33. When the first connecting terminal group 3 and the second connecting terminal group 31 are electrically connected, the power pins 32 are electrically connected to each other, and the signal conduction pins 33 are electrically connected to each other. The first connector 1 and the second connector 2 of this utility model are both combined connectors that include power connection and data signal conduction connection. When the first connecting terminal group 3, the second connecting terminal group 31, and the number of sockets 22 are the same, the first connector 1 and the second connector 2 can be plugged into each other to simultaneously connect the power and conduct data signals. Another connection method is independent power connection or independent signal conduction connection. That is, with the structure of the first connector 1 unchanged, the number of sockets 22 of the second connector 2 remains unchanged, and the second connecting terminal group 31 is only provided with power pins 32 or only provided with signal conduction pins 33. After the second connector 2 is inserted into the first connector 1, independent power connection or independent signal conduction connection can be achieved.

[0023] The second housing 21 is externally provided with a partition 25 to divide the second housing 21 into a front housing 26 and a rear housing 27. A positioning groove 23 and an annular ring 24 are provided in the front housing 26. The rear housing 27 is provided with several limiting plates 271, which cooperate with the rear housing 27 to form an annular groove 272. In use, when the second connector 2 is inserted into the first connector 1, the insertion point is in the front housing 26. After the second connector 2 is fully inserted, the partition 25 abuts against the first housing 11, that is, against the opening end of the receiving cavity 12, further improving the sealing performance and preventing moisture from entering the receiving cavity 12. The first connector 1 is usually fixed to the equipment, while the second connector 2 is usually connected to a cable. The insulation layer of the cable can be injected into the annular groove 272 by methods such as glue injection to form a relatively strong limiting connection to prevent the cable from falling off.

[0024] The side plates a14 and b15 are centrally symmetrical and parallel to each other. Side plate a14 is offset towards one side of the first housing 11, and side plate b15 is offset towards the other side of the first housing 11. This structure provides a large operating space on one side of side plate a14 and one side of side plate b15. Furthermore, since there is only one protrusion, the operator can quickly identify the angle of the first connector 1 during assembly, facilitating installation.

[0025] The first connecting terminal group 3 has two ends: one extending outside the first housing 11 and the other located within the receiving groove. Both ends are plug-in terminals. The second connecting terminal group 31 has one end extending outside the second housing 21, which is a welding terminal. A welding port 34 is provided at the welding terminal of the second connecting terminal group 31. The first plug 1 is fixed to the base, housing, or other positions of the electronic device. The first plug 1 is located at the rear end of the electronic device and can be plugged into circuit boards, other plugs, etc., giving the electronic device more usage options. The second plug 2 connects to cables or power cords. During production, the wire cores inside the cable are first welded to the welding ports 34 of the corresponding pins of the second connecting terminal group 31. Then, an insulating rubber layer is formed by injection, fixing the cable to the second plug 2. More specifically, a limit block 273 is also provided in the annular groove 272, which can fix the insulating rubber layer of the cable to the rear housing 27 circumferentially. This allows the first plug 1 to rotate simultaneously with the entire cable, preventing misalignment between the cable cores and the insulating rubber layer, thus improving safety.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A waterproof connector with a side locking plate, comprising a first connector (1) and a second connector (2), characterized in that: The first connector (1) is provided with a first housing (11), and the first housing (11) is provided with a receiving cavity (12) having an open end. The receiving cavity (12) is provided with a first connecting terminal group (3). One end of the first connecting terminal group (3) extends outward from the bottom of the receiving cavity (12) through the first housing (11). The side wall of the receiving cavity (12) is provided with a positioning strip (13). The second connector (2) is provided with a second housing (21) that cooperates with the receiving cavity (12). The front end of the second housing (21) is provided with a socket (22). The socket (22) is provided with a second connecting terminal group (31). One end of the second connecting terminal group (31) extends out from the rear end of the second housing (21). The second housing (21) is provided with a positioning groove (23) that cooperates with the positioning strip (13). The outside of the second housing (21) is provided with a protruding ring (24). The ring (24) can abut tightly against the inner wall of the receiving cavity (12). The first housing (11) is provided with side plate a (14) and side plate b (15) on the outside. Both side plate a (14) and side plate b (15) are provided with positioning holes (16). The side plate a (14) is also provided with a protruding part (17). The protruding part (17) and side plate a (14) are combined to form a receiving groove shape.

2. A waterproof connector with a side locking plate according to claim 1, characterized in that: The first connection terminal group (3), the second connection terminal group (31), and the number of sockets (22) are the same. The first connection terminal group (3) and the second connection terminal group (31) include at least power pins (32) and signal conduction pins (33).

3. A waterproof connector with a side locking plate according to claim 1, characterized in that: The second housing (21) is provided with a partition (25) to divide the second housing (21) into a front housing (26) and a rear housing (27). A positioning groove (23) and a ring (24) are provided on the front housing (26). The rear housing (27) is provided with a plurality of limiting plates (271). The limiting plates (271) cooperate with the rear housing (27) to form an annular groove (272).

4. A waterproof connector with a side locking plate according to claim 1, characterized in that: The side plate a (14) and side plate b (15) are centrally symmetrical and parallel to each other. The side plate a (14) is offset to one side of the first shell (11), and the side plate b (15) is offset to the other side of the first shell (11).

5. A waterproof connector with a side locking plate according to any one of claims 1 to 4, characterized in that: The first connecting terminal group (3) has a plug-in end at one end extending outside the first housing (11) and an end located inside the receiving groove. The second connecting terminal group (31) has a welding end at one end extending outside the second housing (21). A welding port (34) is provided at the welding end of the second connecting terminal group (31).

Images