Waterproof plug-in module and connector

Abstract

This utility model belongs to the field of connector technology, specifically relating to a waterproof plug-in module and connector, including terminals, a housing, and a connector base; the terminals are housed in a mounting groove within the housing, and the rear end of the terminals is connected to a wire harness; the outer side of the housing has a fixing part and a plug-in part, and the top of the fixing part is provided with a buckle; the plug-in part is provided with a first sealing element; the plug-in part is also provided with a positioning component along the plug-in direction; the connector base is provided with a receiving cavity, and the receiving cavity is provided with a guide groove corresponding to the positioning component; the plug-in part is inserted into the receiving cavity, and the first sealing element abuts against the receiving cavity; the top of the connector base is provided with symmetrical left and right limiting elements, and a bayonet is formed between the two limiting elements, and the buckle is engaged and fixed with the bayonet; this utility model can prevent moisture from seeping in from the interface between the wire harness and the housing or the connector and the base, while ensuring the stability and reliability of the connection.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to waterproof plug-in modules and connectors. Background Technology

[0002] Many electronic devices nowadays require electrical connections to be made by inserting pins with conductive contact pins into each other to achieve the purpose of power supply or signal transmission. Most of these connectors are assembled by insertion and are used in various scenarios that require reliable electrical connections.

[0003] However, waterproof connectors face numerous challenges in practical applications. Their waterproof performance has limitations; in complex environments, moisture can easily seep in from between the wire harness and the housing, or at the interface between the connector and the base, causing short circuits and affecting the normal operation of the equipment. Therefore, there is an urgent need for a connector that simultaneously achieves both waterproof performance and mating stability. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a waterproof plug-in module to solve the problem of the limited waterproof performance of the prior art.

[0005] One embodiment of this utility model provides a waterproof plug-in module, including terminals, a housing, and a connector base;

[0006] The terminal is housed in a mounting slot within the housing, and the rear end of the terminal is connected to a wire harness;

[0007] The outer side of the housing has a fixing part and a plug-in part. The fixing part has a buckle at the top. The plug-in part has an annular groove at one end that connects to the connector base. The annular groove has a first sealing element. The plug-in part also has a positioning component along the plug-in direction.

[0008] The connector base is provided with a receiving cavity, and the receiving cavity is provided with a guide groove corresponding to the positioning component; the plug part is inserted into the receiving cavity, and the first sealing member abuts against the inner wall of the opening of the receiving cavity;

[0009] The connector base has symmetrical limiting members on the top, and a bayonet is formed between the two limiting members. The buckle is engaged and fixed with the bayonet.

[0010] In one embodiment of this utility model, the buckle includes a cantilever, a bent connecting part, and a stop block. One end of the cantilever is connected to the fixing part through the bent connecting part, and the other end of the cantilever is symmetrically provided with the stop block.

[0011] In one embodiment of this utility model, the limiting member is provided with a stepped protrusion, and the stepped protrusion is provided with a guide surface on the side facing the housing;

[0012] The stop block has an inclined surface on the side facing the connector base that corresponds to the guide surface, which guides the stop block of the housing to deform along the guide surface of the limiting member and enter the bayonet so that the stop block is snapped into place with the stepped protrusion.

[0013] In one embodiment of this utility model, the top of the cantilever is provided with a straight protrusion, which is arranged adjacent to the stop block.

[0014] In one embodiment of this utility model, the guide positioning component includes a first positioning protrusion and a second positioning protrusion, the first positioning protrusion being disposed at the top of the insertion portion and the second positioning protrusion being disposed at the bottom of the insertion portion.

[0015] In one embodiment of this utility model, at least two sealing protrusions are provided on the outer side of the first sealing member, and two adjacent sealing protrusions abut against the inner wall of the accommodating cavity to form a sealing cavity.

[0016] In one embodiment of this utility model, a second sealing element is further provided. The second sealing element is connected to the rear end of the fixing part. The second sealing element is provided with a mounting hole corresponding to the wire harness. The mounting hole and the wire harness are interference-fitted.

[0017] In one embodiment of this utility model, a plurality of mounting slots are provided, and the plurality of mounting slots are arranged in a single row in a straight line within the housing to form a single row connection structure containing at least two terminal mounting positions, such as 1x2PIN, 1x3PIN, 1x4PIN...1xNPIN; the slot spacing of the mounting slots is 1-3mm.

[0018] In one embodiment of this utility model, there are several mounting slots, and the several mounting slots are arranged in parallel double rows within the housing to form a double-row connection structure with at least two terminal mounting positions per row, such as 2x2PIN, 2x3PIN, 2x4PIN...2xNPIN; the slot spacing of the mounting slots is 1-3mm, and the row spacing of the double-row connection structure is 2-5mm.

[0019] In one embodiment of this utility model, a connector is also provided, including the waterproof plug-in module described in any of the above embodiments.

[0020] The waterproof plug-in module and connector provided by this utility model can achieve the following technical effects:

[0021] 1. By cooperating with the positioning components of the insertion part and the guide groove in the cavity of the connector base, precise guidance and positioning are achieved during the insertion process, enabling the shell and the connector base to be quickly and accurately inserted. This is especially suitable for rapid blind insertion operations in complex scenarios, while ensuring the stability and reliability of the connection.

[0022] 2. The sealing structure is formed by the first sealing element in the annular groove of the insertion part abutting against the inner wall of the receiving cavity. At the same time, the sealing cavity formed by multiple sealing protrusions and the interference fit between the wire harness and the mounting hole not only enhance the waterproof effect, but also reduce the possibility of dust, impurities and other contaminants entering the mounting groove inside the housing.

[0023] 3. The stepped protrusion guide surface and the inclined surface of the stop block are used to allow the buckle to naturally deform and slide into the bayonet during the insertion process, and the stepped protrusion locks it in place to prevent loosening and falling off; the installation and disassembly of the housing and the connector base are simple and quick. Just align the position and insert it and make the buckle snap into place. When disassembling, apply the corresponding force to make the buckle disengage; at the same time, the straight ridge design improves the bending strength of the cantilever and extends the service life. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 An exploded structural diagram illustrating one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram showing the overall structure of the present invention;

[0027] Figure 3 A schematic diagram showing the structure of the housing of this utility model;

[0028] Figure 4 A schematic diagram of the connector base illustrating the structure of this utility model;

[0029] Figure 5 A three-dimensional structural diagram showing the housing of this utility model from another direction;

[0030] Figure 6 A cross-sectional structural diagram of the waterproof plug-in module of this utility model;

[0031] Figure 7 This is a schematic diagram showing the exploded structure of another embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram showing the overall structure of the present invention.

[0033] The symbols in the attached image are explained as follows:

[0034] 1-Terminal; 11-Wire harness;

[0035] 2-Housing; 21-Fixing part; 22-Plug-in part; 23-Annular groove; 24-Positioning assembly; 241-First positioning protrusion; 242-Second positioning protrusion;

[0036] 3-Connector base; 31-Accommodation cavity; 32-Guide groove; 33-Limiting element; 331-Stepped protrusion; 332-Guide surface;

[0037] 4-Mounting slot;

[0038] 5-Snap fastener; 51-Cantilever; 52-Bending connection; 53-Stop; 54-Straight protruding ridge;

[0039] 6-First seal; 61-Sealing protrusion;

[0040] 7-Second seal;

[0041] 8-Pin. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Example 1

[0044] Please refer to Figure 1-6 One embodiment of this utility model provides a waterproof plug-in module, including a terminal 1, a housing 2, and a connector base 3;

[0045] The terminal 1 is housed in the mounting groove 4 within the housing 2, and the rear end of the terminal 1 is connected to the wire harness 11;

[0046] The outer side of the housing 2 has a fixing part 21 and a plug-in part 22. The fixing part 21 is provided with a buckle 5 at the top. The plug-in part 22 is provided with an annular groove 23 at one end connected to the connector base. The annular groove 23 is provided with a first sealing element 6. The plug-in part 22 is also provided with a positioning component 24 along the plugging direction.

[0047] The connector base 3 is provided with a receiving cavity 31, and the receiving cavity 31 is provided with a guide groove 32 corresponding to the positioning component 24; the plug part 22 is inserted into the receiving cavity 31, and the first sealing member 6 abuts against the inner wall of the opening of the receiving cavity 31.

[0048] The connector base 3 is provided with left and right symmetrical limiting members 33 on the top, and a bayonet is formed between the two limiting members 33. The buckle 5 is engaged and fixed with the bayonet.

[0049] In this embodiment, a pin 8 is also provided in the accommodating cavity 31. When the housing 2 is inserted, the pin 8 is inserted into the interior of the terminal 1 and abuts against the metal part of the terminal 1, forming a power circuit of the wire harness 11, the terminal 1 and the pin 8, so as to realize the electrical connection or communication connection between the first device connected to the housing 2 and the second device connected to the connector base 3.

[0050] Understandably, the insertion part 22 is provided with a positioning component 24 along the insertion direction, which cooperates with the guide groove 32 in the receiving cavity 31 of the connector base 3, so as to guide the housing 2 to be quickly and accurately inserted into the receiving cavity 31, thereby improving the installation efficiency.

[0051] Furthermore, the buckle 5 on the top of the fixing part 21 is engaged and fixed with the snap-fit ​​on the top of the connector base 3. The operation is simple and convenient, and the module can be installed and disassembled without additional tools. At the same time, the buckle 5 can provide sufficient fixing force to ensure that the housing 2 and the connector base 3 will not easily loosen or separate after connection, thus ensuring the stability of the connection.

[0052] In one embodiment of this utility model, the buckle 5 includes a cantilever 51, a bent connecting part 52, and a stop block 53. One end of the cantilever 51 is connected to the fixing part 21 through the bent connecting part 52, and the other end of the cantilever 51 is symmetrically provided with the stop block 53.

[0053] The limiting member 33 is provided with a stepped protrusion 331, and the stepped protrusion 331 is provided with a guide surface 332 on the side facing the housing 2.

[0054] The stop block 53 has an inclined surface corresponding to the guide surface 332 on the side facing the connector base 3, which is used to guide the stop block 53 of the housing 2 to deform along the guide surface 332 of the limiting member 33 and enter the bayonet, so that the stop block 53 is connected to the stepped protrusion 331 in a snap-fit ​​5.

[0055] The top of the cantilever 51 is provided with a straight protrusion 54, which is arranged adjacent to the stop block 53.

[0056] Understandably, by utilizing the cooperation between the guide surface 332 of the stepped protrusion 331 and the inclined surface of the stop block 53, the buckle 5 naturally deforms and slides into the bayonet during the insertion process, and is locked by the stepped protrusion 331 to prevent loosening and falling off; and the installation and disassembly operation between the housing 2 and the connector base 3 is simple and quick, just align the position and insert and make the buckle 5 fasten, and apply the corresponding force to disassemble the buckle 5; at the same time, the straight protrusion 54 design improves the bending strength of the cantilever 51 and extends its service life.

[0057] In one embodiment of the present invention, the guide positioning component 24 includes a first positioning protrusion 241 and a second positioning protrusion 242. The first positioning protrusion 241 is disposed on the top of the insertion part 22, and the second positioning protrusion 242 is disposed on the bottom of the insertion part 22.

[0058] Understandably, the positioning component 24 of the insertion part 22 and the guide groove 32 in the accommodating cavity 31 of the connector base 3 cooperate with each other to achieve precise guidance and positioning during the insertion process, so that the housing 2 and the connector base 3 can be quickly and accurately inserted; wherein, there is one first positioning protrusion 241 and two second positioning protrusions 242.

[0059] In one embodiment of this utility model, at least two sealing protrusions 61 are provided on the outer side of the first sealing member 6, and two adjacent sealing protrusions 61 abut against the inner wall of the accommodating cavity 31 to form a sealing cavity.

[0060] Understandably, the sealing structure is formed by the first sealing element 6 in the annular groove 23 of the insertion part 22 abutting against the inner wall of the receiving cavity 31. At the same time, the sealing cavity formed by multiple sealing protrusions 61 (e.g., three or more) and the interference fit between the wire harness 11 and the mounting hole not only enhance the waterproof effect, but also reduce the possibility of dust, impurities, etc. entering the mounting groove 4 inside the housing 2.

[0061] In one embodiment of this utility model, a second sealing member 7 is further provided. The second sealing member 7 is connected to the rear end of the fixing part 21. The second sealing member 7 is provided with a mounting hole corresponding to the wire harness 11. The mounting hole and the wire harness 11 are interference-fitted.

[0062] Understandably, by interfering with the wiring harness 11 through the mounting hole of the second waterproof component, the connection between the wiring harness 11 and the housing 2 is effectively sealed to prevent moisture from seeping in; at the same time, the second waterproof component effectively seals the openings of the multiple mounting grooves 4 provided inside the housing 2 to prevent moisture from seeping into the mounting grooves 4, and provides waterproof protection for the internal terminals 1 to avoid short circuits or corrosion of the terminals 1.

[0063] Furthermore, the second sealing element 7 and the first sealing element 6 cooperate to form a multi-seal structure of the waterproof plug module; the first sealing element 6 mainly seals the opening of the plug part 22 and the receiving cavity 31 of the connector base 3, while the second sealing element 7 focuses on sealing the lead-out point of the wire harness 11, so that the entire module forms a relatively complete sealing system, further improving the waterproof performance of the waterproof plug module and ensuring that it can adapt to complex environments such as humidity and water immersion when used for electrical or communication connections between the first and second devices.

[0064] Example 2

[0065] Please refer to Figure 7-8 In one embodiment of this utility model, a plurality of mounting slots 4 are provided, and the plurality of mounting slots 4 are arranged in a single row in a straight line within the housing 2 to form a single row connection structure containing at least two terminal mounting positions, such as 1x2PIN, 1x3PIN, 1x4PIN...1xNPIN, where PIN refers to the circuit interface of the connector used for electrical or communication connection between two devices; the slot spacing of the mounting slots 4 is 1-3mm.

[0066] For example, in one implementation scenario, there are four mounting slots 4, which form four mounting positions in a single row with equal spacing. The slot spacing of the mounting slots 4 is 2mm, which is used to accommodate four terminals 1 to form a single row 4pin structure.

[0067] Understandably, a single-row 4-pin structure with a straight-line arrangement is suitable for narrow spaces where both length and width are limited, as well as scenarios where connector density requirements are low but stability must be guaranteed. For example, when connecting a single sensor, the multiple terminals 1 of the single-row 4-pin structure are used to transmit power, signals, and redundant lines, respectively.

[0068] Example 3

[0069] Please refer to Figure 1-6 In one embodiment of this utility model, a plurality of mounting slots 4 are provided, and the plurality of mounting slots 4 are arranged in parallel double rows within the housing 2 to form a double-row connection structure in which each row contains at least two terminal mounting positions, such as 2x2PIN, 2x3PIN, 2x4PIN...2xNPIN, where PIN refers to the circuit interface of the connector for electrical or communication connection between two devices; the slot spacing of the mounting slots 4 is 1-3mm, and the row spacing of the double-row connection structure is 2-5mm.

[0070] For example, in one scenario of this embodiment, there are 8 mounting slots 4 arranged in two parallel rows, with four mounting positions in each row, for accommodating eight terminals 1 to form a double-row 4-pin structure. The slot spacing of the mounting slots 4 is 2mm, and the row spacing of the double-row connection structure is 4mm.

[0071] Understandably, the double-row parallel arrangement (4 pins per row) increases the number of terminals 1 to twice that of the single-row structure (8 pins) within the same housing length 2. The vertical arrangement breaks through the lateral space limitation of the single-row structure, thereby adapting to the miniaturization needs of modern electronic devices, such as realizing multi-channel signal transmission in space-constrained scenarios like automotive ECUs and 5G communication modules.

[0072] Alternatively, depending on the actual connection requirements, several of the mounting slots 4 may be arranged in multiple parallel rows within the housing 2, for example, three or more rows, with the number of mounting positions in each row being the same or different.

[0073] Example 4

[0074] In one embodiment of this utility model, a connector is also provided, including the waterproof plug-in module described in any of the above embodiments.

[0075] 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. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A watertight patch module, characterized in that Includes terminals, housing, and connector base; The terminal is housed in a mounting slot within the housing, and the rear end of the terminal is connected to a wire harness; The outer side of the housing has a fixing part and a plug-in part. The fixing part has a buckle at the top. The plug-in part has an annular groove at one end that connects to the connector base. The annular groove has a first sealing element. The plug-in part also has a positioning component along the plug-in direction. The connector base is provided with a receiving cavity, and the receiving cavity is provided with a guide groove corresponding to the positioning component; the plug part is inserted into the receiving cavity, and the first sealing member abuts against the inner wall of the opening of the receiving cavity; The connector base has symmetrical limiting members on the top, and a bayonet is formed between the two limiting members. The buckle is engaged and fixed with the bayonet.

2. The watertight patch module of claim 1, wherein, The buckle includes a cantilever, a bent connecting part, and a stop block. One end of the cantilever is connected to the fixing part through the bent connecting part, and the other end of the cantilever is symmetrically provided with the stop block.

3. The watertight patch module of claim 2, wherein, The limiting member is provided with a stepped protrusion, and the stepped protrusion has a guide surface on the side facing the housing; The stop block has an inclined surface on the side facing the connector base that corresponds to the guide surface, which guides the stop block of the housing to deform along the guide surface of the limiting member and enter the bayonet so that the stop block is snapped into place with the stepped protrusion.

4. The waterproofed patch module of claim 2, wherein, The top of the cantilever is provided with a straight protrusion, which is arranged adjacent to the stop block.

5. The watertight jack module of claim 1, wherein, The guide positioning component includes a first positioning protrusion and a second positioning protrusion, the first positioning protrusion being disposed at the top of the insertion part and the second positioning protrusion being disposed at the bottom of the insertion part.

6. The waterproofed patch module of claim 1, wherein, The outer side of the first seal is provided with at least two sealing protrusions, and two adjacent sealing protrusions abut against the inner wall of the accommodating cavity to form a sealing cavity.

7. A watertight plug-in module according to any one of claims 1-6, characterized in that A second sealing element is also provided, which is connected to the rear end of the fixing part. The second sealing element has a mounting hole corresponding to the wire harness, and the mounting hole and the wire harness are interference-fitted.

8. The watertight jack module of claim 7, wherein, The mounting slots are provided in a plurality of them, and the plurality of mounting slots are arranged in a single row in a straight line within the housing to form a single row connection structure containing at least two terminal mounting positions; the slot spacing of the mounting slots is 1-3mm.

9. The watertight jack module of claim 7, wherein, The mounting slots are provided in a plurality of them, and the plurality of mounting slots are arranged in two parallel rows within the housing to form a double-row connection structure in which each row contains at least two terminal mounting positions; the slot spacing of the mounting slots is 1-3mm, and the row spacing of the double-row connection structure is 2-5mm.

10. A connector characterized by comprising: The waterproof connector module is as described in any one of claims 1-9.

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