Flange type waterproof connector

Abstract

The utility model belongs to connector technical field especially relates to a flange type waterproof connector, include: plug including first casing, positive pole pin, negative pole pin and first waterproof pad, positive pole pin, negative pole pin all are arranged in first casing, the length of positive pole pin is greater than the length of negative pole pin, and first waterproof pad is sleeved in first casing, socket includes second casing, power terminal and second waterproof pad, and power terminal has two and is arranged in second casing respectively, and power terminal is configured as when plug and socket are inserted, power terminal is connected with positive pole pin or negative pole pin, and second waterproof pad is sleeved in second casing. The utility model discloses a connector through the length difference design of positive pole pin and negative pole pin, realized the time-sharing contact in the connecting process, can effectively avoid short circuit, improved the electrical safety of connection.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a flange-type waterproof connector. Background Technology

[0002] Flange-type waterproof connectors are widely used in harsh environments such as industrial machinery, outdoor communications, photovoltaic energy storage, and vehicle equipment. Through flange structure fixing and sealing design, they achieve waterproofing and dustproofing, ensuring the stability of power or signal transmission. In existing technologies, the positive and negative power pins of connector plugs are mostly designed with equal height, often resulting in simultaneous contact of the positive and negative terminals or negative terminal contact first during insertion and removal. This contact method is prone to causing momentary short circuits, especially in high-voltage scenarios, potentially generating electric sparks, damaging equipment circuits, and even causing safety hazards, failing to meet the core requirements of circuit protection. Therefore, there is an urgent need for a connector structure design that optimizes the pin contact sequence, improving the connector's circuit protection performance through reasonable planning of the positive and negative terminal contact timing.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of at least one of the above technical problems, this application provides a flange-type waterproof connector.

[0005] This application provides a flange-type waterproof connector, the connector comprising: The plug includes a first housing, a positive pin, a negative pin, and a first waterproof pad. The positive pin and the negative pin are both inserted into the first housing. The length of the positive pin is greater than the length of the negative pin. The first waterproof pad is fitted onto the first housing. The socket includes a second housing, power terminals, and a second waterproof pad. The power terminals are two in number and are respectively disposed in the second housing. The power terminals are configured to connect to a positive or negative pin when the plug is inserted into the socket. The second waterproof pad is fitted onto the second housing.

[0006] This connector, through the length difference design of the positive and negative pins, achieves time-division contact during the connection process, which can effectively avoid short circuits and improve the electrical safety of the connection.

[0007] In some possible implementations, the first housing includes a plug-in portion, a first mounting portion, and a first sleeve portion connected in sequence, with a positive electrode pin and a negative electrode pin passing through the first sleeve portion, the first mounting portion, and the plug-in portion, and a first waterproof gasket fitted onto the first sleeve portion; The second housing includes a receiving part, a second mounting part, and a second sleeve part connected in sequence. A power terminal is inserted into the second sleeve part, the second mounting part, and the receiving part. A second waterproof gasket is fitted onto the second sleeve part. When the plug is inserted into the socket, the plug part and the receiving part are engaged.

[0008] In some possible implementations, the plug part is provided with a barrier wall, and the barrier wall and the inner surface of the plug part together form multiple plug slots, with the positive and negative plug parts located in different plug slots respectively. The receiving section is provided with a receiving slot that extends to the second mounting section. The receiving slot is provided with multiple pins, each pin having an opening, and the power terminal portion is located inside the pin. When the plug is inserted into the pin, the positive or negative pin can be inserted and engaged with the power terminal through the opening of the pin.

[0009] In some possible implementations, the power terminal has a mounting groove at one end inside the plug, and a torsion spring is provided in the mounting groove.

[0010] In some possible implementations, a waterproof ring is fitted onto the plug portion, and the waterproof ring is configured to seal the gap between the plug portion and the receiving portion when the plug and socket are plugged in.

[0011] In some possible implementations, the first mounting part is configured to be secured to a mounting panel by four first fasteners.

[0012] In some possible implementations, the second mounting part is configured to be secured to another mounting panel by four second fasteners.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the internal structure of the flange-type waterproof connector provided in the embodiments of this application; Figure 2 yes Figure 1 A schematic diagram of the middle plug structure; Figure 3 yes Figure 2 A schematic diagram of the internal structure of the plug; Figure 4 yes Figure 1 A schematic diagram of the structure of the middle socket; Figure 5 yes Figure 4 Internal structure diagram of the socket; In the diagram: 100, plug; 110, first housing; 120, positive pin; 130, negative pin; 140, first waterproof pad; 111. Insertion part; 112. First mounting part; 113. First sleeve part; 1111, Barrier wall; 1112, Insertion groove; 1113, Waterproof ring; 200, socket; 210, second housing; 220, power terminal; 230, second waterproof gasket; 211. Reception section; 212. Second mounting section; 213. Second sleeve section; 2111, Receiving slot; 2112, Insert post; 221, Mounting slot; 222, Torsion spring; Detailed Implementation

[0016] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0017] like Figures 1 to 5 As shown, this embodiment provides a flange-type waterproof connector, which includes a plug 100 and a socket 200.

[0018] The plug 100 includes a first housing 110, a positive pin 120, a negative pin 130, and a first waterproof pad 140. The positive pin 120 and the negative pin 130 are both inserted into the first housing 110. The length of the positive pin 120 is greater than the length of the negative pin 130. The first waterproof pad 140 is fitted onto the first housing 110. The socket 200 includes a second housing 210, a power terminal 220, and a second waterproof pad 230. There are two power terminals 220, which are respectively disposed in the second housing 210. The power terminals 220 are configured to connect to the positive pin 120 or the negative pin 130 when the plug 100 is plugged into the socket 200. The second waterproof pad 230 is sleeved on the second housing 210.

[0019] The ends of the positive and negative pins are fitted with plastic anti-touch finger caps to prevent operators from getting electric shock and achieve safe use.

[0020] In this embodiment, the flange-type waterproof connector is used by aligning the plug 100 with the socket 200 and pushing it in. Because the positive pin 120 is longer than the negative pin 130, during insertion, the positive pin 120 will contact the corresponding power terminal 220 before the negative pin 130. During removal, the negative pin 130 will disconnect before the positive pin 120. The first waterproof pad 140 and the second waterproof pad 230 are deformed under pressure when the connector is installed on the device panel.

[0021] The flange-type waterproof connector provided in this embodiment achieves time-division contact during the connection process through the length difference design of the positive and negative pins 130, which can effectively avoid short circuits and improve the electrical safety of the connection. In addition, by setting a first waterproof gasket 140 on the first housing 110 and a second waterproof gasket 230 on the second housing 210, the sealing of the plug 100, socket 200 and the device panel mounting points is ensured, effectively preventing moisture and dust from entering the device through the mounting holes.

[0022] like Figures 1 to 5 As shown, in some embodiments, the first housing 110 includes a plug-in portion 111, a first mounting portion 112, and a first sleeve portion 113 connected in sequence. A positive electrode pin 120 and a negative electrode pin 130 pass through the first sleeve portion 113, the first mounting portion 112, and the plug-in portion 111. A first waterproof gasket 140 is fitted onto the first sleeve portion 113. The second housing 210 includes a receiving portion 211, a second mounting portion 212, and a second sleeve portion 213 connected in sequence. A power terminal 220 passes through the second sleeve portion 213, the second mounting portion 212, and the receiving portion 211. A second waterproof gasket 230 is fitted onto the second sleeve portion 213. When the plug 100 is plugged into the socket 200, the plug-in portion 111 and the receiving portion 211 are plugged into each other.

[0023] In the first housing 110, the insertion part 111, the first mounting part 112 and the first sleeve part 113 are connected sequentially along the axial direction of the first housing 110.

[0024] The insertion part 111 is a component that is inserted into and mates with the receiving part 211. The insertion part 111 is cylindrical.

[0025] The first mounting portion 112 is a component that is fixed to a mounting panel of a device by four first fasteners. The first mounting portion 112 is flange-shaped and protrudes in a direction perpendicular to the axial direction of the first housing 110. Four first mounting holes are provided on the first mounting portion 112. During installation, the four first mounting holes of the first mounting portion 112 are aligned with the pre-drilled holes on the mounting panel, and then the first mounting portion 112 is fixed to the mounting panel by the first fasteners. It is understood that the first fasteners are screws.

[0026] The first sleeve portion 113 is a component that is fitted and mates with the first waterproof gasket 140. It can be understood that the first waterproof gasket 140 is fitted at the base of the first sleeve portion 113 and abuts against the back of the first mounting portion 112.

[0027] In the second housing 210, the receiving part 211, the second mounting part 212, and the second sleeve part 213 are connected sequentially along the axial direction of the second housing 210.

[0028] The receiving part 211 is a component that mates with the plug part 111. The receiving part 211 is hollow inside to accommodate the plug part 111 of the plug 100.

[0029] The second mounting portion 212 is a component that is fixed to the mounting panel of another device by four second fasteners. The second mounting portion 212 is flange-shaped and protrudes in a direction perpendicular to the axial direction of the second housing 210. Four second mounting holes are provided on the second mounting portion 212. During installation, the four second mounting holes of the second mounting portion 212 are aligned with the pre-drilled holes on the mounting panel, and then the second mounting portion 212 is fixed to the mounting panel by the second fasteners. It is understood that the second fasteners are screws.

[0030] The second sleeve portion 213 is a component that fits into the second waterproof gasket 230. It can be understood that the second waterproof gasket 230 is fitted onto the base of the second sleeve portion 213 and abuts against the back of the second mounting portion 212.

[0031] When connecting, the user holds the plug 100 and inserts the plug part 111 into the receiving part 211 of the socket 200.

[0032] like Figures 1 to 5 As shown, in some embodiments, the plug portion 111 is provided with a barrier wall 1111, and the barrier wall 1111 and the inner surface of the plug portion 111 together form a plurality of plug grooves 1112. The positive electrode pin 120 and the negative electrode pin 130 are respectively located in different plug grooves 1112. The receiving portion 211 is provided with a receiving groove 2111, which extends to the second mounting portion 212. The receiving groove 2111 is provided with a plurality of pins 2112, and the pins 2112 have openings. The power terminal 220 is located in the pins 2112. When the plug 100 is plugged into the pins 2112, the positive electrode pin 120 or the negative electrode pin 130 can be plugged into and engaged with the power terminal 220 through the opening of the pin 2112.

[0033] The barrier wall 1111 is a component that can physically separate the positive electrode pin 120 and the negative electrode pin 130. The barrier wall 1111 divides the internal space of the plug-in portion 111 and, together with the inner surface of the plug-in portion 1111, forms a plurality of independent plug-in slots 1112. The positive electrode pin 120 and the negative electrode pin 130 are located in different plug-in slots 1112 and are physically isolated.

[0034] When plug 100 is inserted into socket 200, pin 2112 is inserted into the corresponding socket 1112 for coarse guidance. Subsequently, positive pin 120 and negative pin 130 pass through the opening of pin 2112 and are precisely inserted into the power terminal 220 located inside pin 2112, completing the typical connection between plug 100 and socket 200.

[0035] Thus, the design of the barrier wall 1111 and the plug 2112 physically isolates the positive and negative pins 130, greatly increasing the creepage distance and preventing short circuits between the electrodes. Meanwhile, the power terminal 220 is hidden within the plug 2112 and features a finger-touch-proof design to prevent accidental contact with the power terminal 220 by the user, improving safety. Additionally, the plug 2112 guides and protects the pins, preventing them from bending or deforming due to misaligned insertion.

[0036] like Figures 1 to 5 As shown, in some embodiments, the power terminal 220 is provided with a mounting groove 221 at one end located in the plug 2112, and a torsion spring 222 is provided in the mounting groove 221.

[0037] The torsion spring 222 is a component that connects to the positive or negative terminal. The torsion spring 222 has a cage-like or multi-point contact structure and is fixed to the inner wall of the mounting groove 221.

[0038] When the positive pin 120 or the negative pin 130 is inserted into the mounting slot 221 of the power terminal 220 through the opening of the pin 2112, the outer wall of the pin compresses the torsion spring 222 inside the slot. The torsion spring 222 undergoes elastic deformation, tightly wrapping around the cylindrical surface of the pin. In this way, the torsion spring 222 structure provides multi-point contact, which has a lower contact resistance compared to traditional sheet contact. At the same time, the radial clamping force of the torsion spring 222 ensures that the pin maintains a stable electrical connection when subjected to external vibration or impact, avoiding momentary disconnection.

[0039] like Figures 1 to 5 As shown, in some embodiments, a waterproof ring 1113 is provided on the plug portion 111. The waterproof ring 1113 is configured to seal the gap between the plug portion 111 and the receiving portion 211 when the plug 100 is plugged into the socket 200.

[0040] Understandably, the waterproof ring 1113 is fitted onto the base of the plug portion 111 and abuts against the first mounting portion 112. When the plug 100 is plugged into the socket 200, the opening edge of the receiving portion 211 of the socket 200 contacts the waterproof ring 1113, thereby effectively sealing the gap between the plug portion 111 and the receiving portion 211, preventing dust and moisture from entering.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A flange-type waterproof connector, characterized in that, The connector includes: The plug includes a first housing, a positive pin, a negative pin, and a first waterproof pad. The positive pin and the negative pin are both inserted into the first housing. The length of the positive pin is greater than the length of the negative pin. The first waterproof pad is fitted onto the first housing. The socket includes a second housing, power terminals, and a second waterproof pad. The power terminals are two in number and are respectively disposed in the second housing. The power terminals are configured to connect to either the positive or negative pin when the plug is inserted into the socket. The second waterproof pad is fitted onto the second housing.

2. The flange-type waterproof connector according to claim 1, characterized in that, The first housing includes a plug-in portion, a first mounting portion, and a first sleeve portion connected in sequence. The positive electrode pin and the negative electrode pin are inserted into the first sleeve portion, the first mounting portion, and the plug-in portion. The first waterproof gasket is sleeved on the first sleeve portion. The second housing includes a receiving part, a second mounting part, and a second sleeve part connected in sequence. The power terminal passes through the second sleeve part, the second mounting part, and the receiving part. The second waterproof gasket is sleeved on the second sleeve part. When the plug is inserted into the socket, the insertion part engages with the receiving part.

3. The flange-type waterproof connector according to claim 2, characterized in that, The plug-in part is provided with a barrier wall, and the barrier wall and the inner surface of the plug-in part together form a plurality of plug-in slots, and the positive electrode pin and the negative electrode pin are respectively located in different plug-in slots; The receiving part is provided with a receiving groove, which extends to the second mounting part. The receiving groove is provided with a plurality of plugs, each plug having an opening, and the power terminal portion is located inside the plug. When the plug is inserted into the pin, the positive pin or the negative pin can be inserted into the power terminal through the opening of the pin.

4. The flange-type waterproof connector according to claim 3, characterized in that, The power terminal is provided with a mounting groove at one end inside the plug, and a torsion spring is provided in the mounting groove.

5. The flange-type waterproof connector according to claim 2, characterized in that, A waterproof ring is fitted onto the plug portion, and the waterproof ring is configured to seal the gap between the plug portion and the receiving portion when the plug is plugged into the socket.

6. The flange-type waterproof connector according to claim 2, characterized in that, The first mounting part is configured to be fixed to a mounting panel by four first fasteners.

7. The flange-type waterproof connector according to claim 2, characterized in that, The second mounting part is configured to be secured to another mounting panel by four second fasteners.

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