Waterproof connector

Abstract

The utility model discloses a waterproof connector which prevents a waterproof plug and a terminal from falling off easily and is accurate in butt joint. According to the technical scheme, the connector comprises a connector socket and a connector plug matched with the connector socket in an inserted mode, the connector socket comprises a socket shell and a set of jack terminals arranged in the socket shell, and the connector plug comprises a plug shell and a set of pin terminals arranged in the plug shell. An inner cavity of the socket shell is provided with a group of jack terminal slots which are arranged at intervals, an open type first wire sealing body installation groove is correspondingly arranged behind the jack terminal slots, a first wire sealing body is sealed through the first wire sealing body installation groove, the lower end of each jack terminal slot is provided with a first clamping table, and the rear end of the socket shell is provided with a locking piece.

Description

Technical Field

[0001] The utility model belongs to the field of electronics, and in particular relates to a connector. Background Art

[0002] A connector is also called a connector. It consists of a connector plug and a connector socket, and is used to connect two active devices to transmit current or signals. A traditional connector is shown in the Chinese utility model patent with authorization publication number "CN 221428034 U" and titled "A High-Voltage Waterproof Connector for Energy Storage." The structure of the connector socket includes: a socket housing and a set of socket terminals disposed within the socket housing; the structure of the connector plug includes: a plug housing and a set of pin terminals disposed within the plug housing. To achieve the waterproof function of the connector, a wire seal is provided at the rear end of the connector socket to secure the wire seal, and a rear cover is also required at the rear end of the connector socket. The disadvantages are: 1. The socket terminals in the connector socket are easily dislodged by the pin terminals; 2. The socket terminals are easily inserted into place, which can easily lead to a loose connection with the pin terminals. For example, in high-voltage circuits, loose connections can easily generate sparks, which can seriously cause fires.

[0003] To address the above problem, a stopper is currently generally provided. However, there is a disadvantage that, due to factors such as injection molding accuracy and the thin edge of the pin terminal, the stopper is difficult to accurately stop against the edge of the pin terminal, which can easily cause ineffective locking. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a waterproof connector in which the waterproof plug and the terminal are not easy to fall off and the docking is precise.

[0005] To solve the above-mentioned problem, the technical solution adopted by the present invention includes: a connector socket and a connector plug for mating with the connector socket, the connector socket including a socket housing and a group of receptacle terminals disposed in the socket housing, and the connector plug including a plug housing and a group of pin terminals disposed in the plug housing, characterized in that: a group of receptacle terminal slots arranged at intervals are provided in the inner cavity of the socket housing, an open first wire sealing body mounting groove is provided corresponding to the rear of the receptacle terminal slots, a first wire sealing body is sealed through the first wire sealing body mounting groove, a first clamping platform is provided at the lower end of the receptacle terminal slot, and a locking piece is provided at the rear end of the socket housing, the locking piece includes a horizontal block abutting the upper end of the first wire sealing body and a vertical block abutting the middle part of the first wire sealing body, the upper end of the horizontal block is provided with an upper buckle connected to the socket housing, and the lower end is provided with a group of elastic blocking strips extending into the receptacle terminal slots for abutting the receptacle terminals, the lower end of the vertical block is provided with a lower buckle connected to the socket housing, and the socket housing is provided with a rib for engaging with the upper and lower buckles.

[0006] The waterproof connector is characterized in that: an inclined guide surface is provided at the entrance of the jack terminal slot, the elastic baffle includes a rear section and a front section located below the horizontal plane of the rear section, the front section is connected to the rear section through the inclined section, and the front section slides upward along the guide surface to the bottom of the jack terminal slot and abuts against the jack terminal.

[0007] The waterproof connector is characterized in that: a square socket is integrally stamped at the front end of the jack terminal, a first card-removal spring connected to the first card platform is provided at the bottom of the square socket, and the top is fitted into the jack terminal slot, and a blocking surface is provided at the rear end of the square socket that cooperates with the front section.

[0008] The waterproof connector is characterized in that an elastic contact piece is integrally formed in the square socket, and the elastic contact piece includes a contact piece, a support piece connected to the rear end of the contact piece, and a support foot connected to the bottom of the support piece. The contact piece and the support piece are both arranged at an angle, and the support foot is close to the bottom surface of the square socket.

[0009] The waterproof connector is characterized in that: the inner cavity of the plug housing is provided with a group of spaced pin terminal slots, an open second sealing body installation groove is provided behind the corresponding jack terminal slot, a second sealing body is sealed by the second sealing body installation groove, a second clamping platform is provided at the upper end of the jack terminal slot, a first pin portion contacting the elastic contact piece is provided at the front end of the pin terminal, and a positioning portion is provided at the rear end, and a second card-removing spring connected to the second clamping platform is provided on the positioning portion.

[0010] The waterproof connector is characterized in that the front end of the first pin portion is bent to form a second pin portion overlapping with it, the rear end of the second pin portion extends to the positioning portion, and reinforced edges wrapped around the second pin portion are provided on both sides of the positioning portion.

[0011] The waterproof connector is characterized in that the inner end surface of the square socket is provided with barbs.

[0012] The waterproof connector is characterized in that lock buckles are provided on both sides of the socket housing, and lock platforms that cooperate with the lock buckles are provided on both sides of the plug housing.

[0013] The waterproof connector is characterized in that the locking platform includes a positioning plate and a locking plate connected between the positioning plates, a support block slot is provided at the bottom of the locking plate, and a support block embedded in the support block slot is provided on the socket housing.

[0014] The waterproof connector is characterized in that: the socket housing is provided with a fool-proof positioning rib, and the plug housing is provided with a fool-proof positioning opening that cooperates with the fool-proof positioning rib.

[0015] The waterproof connector of the present invention has the following beneficial effects: 1. Through the locking piece with a specific structure, while fixing the jack terminal, it also provides support for the wire sealing body, so as to prevent the jack terminal from being inserted into place and solve the problem of the waterproof ring falling off. At the same time, the back cover is omitted, making the structure simpler and easier to assemble; 2. The front section of the elastic baffle slides upward along the lower end of the guide surface to the bottom of the jack terminal slot to resist the jack terminal to ensure precise docking with the jack terminal. Since the guide surface has a large height difference and the elastic baffle has a certain elasticity, the front section of the elastic baffle can slide up and accurately dock with the jack terminal regardless of whether it is inserted at the lower end, middle end or high end of the guide surface. Therefore, the accuracy requirement for the elastic baffle is reduced, making production easier.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a cross-sectional view of the utility model waterproof connector;

[0019] Figure 3 This is an exploded view of the waterproof connector of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the locking plate of the utility model;

[0021] Figure 5 This is a structural diagram of the jack terminal of the utility model;

[0022] Figure 6 It is a cross-sectional view of the jack terminal of the utility model;

[0023] Figure 7 It is a cross-sectional view of the pin terminal of the utility model;

[0024] Figure 8 It is a structural diagram of the socket housing of the utility model;

[0025] Figure 9 This is a schematic structural diagram of the plug housing of the utility model;

[0026] Figure 10 It is a cross-sectional view of the socket housing of the utility model. DETAILED DESCRIPTION

[0027] like Figures 1 to 10 As shown, the waterproof connector of the present invention comprises a connector receptacle 1 and a connector plug 2 that mates with the connector receptacle 1. The connector receptacle 1 comprises a receptacle housing 3 and a set of receptacle terminals 4 disposed within the receptacle housing 3. The connector plug 2 comprises a plug housing 5 and a set of pin terminals 6 disposed within the plug housing 5. The interior of the receptacle housing 3 is provided with a set of spaced-apart receptacle terminal slots 7. The receptacle housing 3 has an open first wire seal mounting groove 8 behind the receptacle terminal slots 7, which seals a first wire seal 9. A first retaining plate 10 is provided at the lower end of the receptacle terminal slot 7. A locking plate 11 is provided at the rear end of the receptacle housing 3. The locking plate 11 comprises a horizontal bar 12 that abuts the upper end of the first wire seal 9 and a vertical bar 13 that abuts the middle portion of the first wire seal 9. The upper end of the horizontal bar 12 is provided with an upper latch 14 connected to the receptacle housing 3. The lower end of the horizontal bar 12 is provided with a set of elastic retaining bars 15 that extend into the receptacle terminal slots 7 to retain the receptacle terminals 4. The lower end of the longitudinal block 13 is provided with a lower buckle 16 connected to the socket housing 3, and the socket housing 3 is provided with a rib 17 that engages with the upper and lower buckles 14 and 16. The first sealing body 9 is provided with a mounting hole adapted to the elastic retaining strip 15.

[0028] Preferably, an inclined guide surface 18 is provided at the entrance of the jack terminal slot 7, and the elastic retaining strip 15 includes a rear section 19 and a front section 20 located below the horizontal plane of the rear section 19. The front section 20 is connected to the rear section 19 through an inclined section 21. The front section 20 slides upward along the guide surface 18 to the bottom of the jack terminal slot 7 and abuts against the jack terminal 4. The rear section 19 should be thicker than the front section 20 and the inclined section 21, and ideally be in the shape of an inverted triangle. When the front section 20 is inserted into the jack terminal slot 7, the deformation of the inclined section 21 and the front section 20 allows the front section 20 to slide upward to the bottom of the jack terminal slot 7 close to the guide surface 18, thereby preventing the deformation of the rear section 19 from creating a gap between the first sealing body 9 and the front section 20, thereby reducing the waterproof performance.

[0029] Preferably, the front end of the receptacle terminal 4 is integrally stamped with a square socket 22. The bottom of the square socket 22 is provided with a first ejection spring 23 connected to the first card platform 10. Through the connection between the first ejection spring 23 and the first card platform 10, the top of the square socket 22 is attached to the inner wall of the receptacle terminal slot 7. The rear end of the square socket 22 is provided with a stop surface 24 that cooperates with the front section 20, so that it can more accurately dock with the front section 20 of the elastic stop bar 15. The first ejection spring 23 and the elastic stop bar 15 work together to fix the receptacle terminal 4.

[0030] Preferably, a resilient contact 25 is integrally formed within the square socket 22. The resilient contact 25 comprises a contact piece 26, a support piece 27 connected to the rear end of the contact piece 26, and a support foot 28 connected to the bottom of the support piece 27. The contact piece 26 and the support piece 27 are both inclined, and the support foot 28 is close to the bottom surface of the square socket 22. The above structure provides the resilient contact 25 with good elasticity and stability, so that the pin terminal 6 can be connected to the square socket 22 regardless of whether it is inserted at the low end, middle end, or high end of the resilient contact 25. This reduces the installation accuracy requirements for the pin terminal 6 while ensuring contact stability.

[0031] Preferably, the inner cavity of the plug housing 5 is provided with a group of spaced pin terminal slots 29, and an open second wire sealing body mounting groove 30 is provided behind the corresponding socket terminal slot 7. A second wire sealing body 31 is sealed through the second wire sealing body mounting groove 30. A second clamping platform 32 is provided at the upper end of the socket terminal slot 7. The front end of the pin terminal 6 is provided with a first pin portion 33 that contacts the elastic contact 25. The rear end of the pin terminal 6 is provided with a positioning portion 34. The positioning portion 34 is provided with a second ejection spring 35 connected to the second clamping platform 32. After assembly, the second ejection spring 35 is connected to the second clamping platform 32, and the positioning portion 34 abuts against the front end of the pin terminal slot 29 to fix the pin terminal 6.

[0032] Preferably, the front end of the first pin portion 33 is bent to form a second pin portion 36 that overlaps with it. The rear end of the second pin portion 36 extends to the positioning portion 34. Both sides of the positioning portion 34 are provided with reinforcing edges 37 that wrap around the second pin portion 36, thereby improving the strength of the pin terminal 6.

[0033] Preferably, the inner end surface of the square socket 22 is provided with a barb 38. When the pin terminal 6 is inserted into the square socket 22, the contact piece 26 will cling to the inner end surface of the square socket 22, and the barb 38 will make the connection more secure, further preventing it from loosening.

[0034] Preferably, lock catches 39 are provided on both sides of the socket housing 3, and locking platforms 40 are provided on both sides of the plug housing 5 to cooperate with the lock catches 39. When the connector socket 1 and the connector plug 2 are plugged into place, the lock catches 39 snap into the locking platforms 40 to achieve a secondary locking of the two, further preventing them from loosening.

[0035] Preferably, the locking platform 40 includes positioning plates 41 and locking plates 42 connected between the positioning plates 41. The bottom of the locking plates 42 is provided with a support block slot 43, and the socket housing 3 is provided with a support block 44 that is embedded in the support block slot 43. When locking, the locking buckle 39 is buckled into the locking plate 42 along the sliding groove formed between the positioning plates 41, and the support block 44 is embedded in the support block slot 43, making the connection between the two more precise and stable.

[0036] Preferably, the socket housing 3 is provided with a foolproof positioning rib 45, and the plug housing 5 is provided with a foolproof positioning opening 46 that cooperates with the foolproof positioning rib 45 to prevent the two from being inserted in reverse directions.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A waterproof connector, comprising a connector socket (1) and a connector plug (2) arranged to be plugged into the connector socket (1), wherein the connector socket (1) comprises a socket housing (3) and a group of jack terminals (4) arranged in the socket housing (3), and the connector plug (2) comprises a plug housing (5) and a group of pin terminals (6) arranged in the plug housing (5), characterized in that: The inner cavity of the socket housing (3) is provided with a group of spaced jack terminal slots (7), an open first sealing body installation groove (8) is provided at the rear of the jack terminal slot (7), a first sealing body (9) is sealed through the first sealing body installation groove (8), a first clamping platform (10) is provided at the lower end of the jack terminal slot (7), and a locking plate (11) is provided at the rear end of the socket housing (3), the locking plate (11) includes a horizontal block (12) against the upper end of the first sealing body (9) and a locking plate (12) against the upper end of the first sealing body (9). The longitudinal block (13) is provided at the middle of the first sealing body (9), the upper end of the transverse block (12) is provided with an upper buckle (14) connected to the socket housing (3), and the lower end is provided with a group of elastic blocking strips (15) extending into the socket terminal slot (7) for resisting the socket terminal (4), the lower end of the longitudinal block (13) is provided with a lower buckle (16) connected to the socket housing (3), and the socket housing (3) is provided with a rib (17) that is hooked and matched with the upper buckle (14) and the lower buckle (16).

2. The waterproof connector according to claim 1, characterized in that: An inclined guide surface (18) is provided at the entrance of the jack terminal slot (7), and the elastic retaining strip (15) includes a rear section (19) and a front section (20) located below the horizontal plane of the rear section (19), the front section (20) is connected to the rear section (19) through an inclined section (21), and the front section (20) slides upward along the guide surface (18) to the bottom of the jack terminal slot (7) and abuts against the jack terminal (4).

3. The waterproof connector according to claim 2, characterized in that: The front end of the jack terminal (4) is integrally stamped with a square socket (22); the bottom of the square socket (22) is provided with a first card-removing spring (23) connected to the first card platform (10), and the top is fitted into the jack terminal slot (7); the rear end of the square socket (22) is provided with a blocking surface (24) that cooperates with the front section (20).

4. The waterproof connector according to claim 3, characterized in that: An elastic contact piece (25) is integrally formed in the square socket (22), and the elastic contact piece (25) comprises a contact piece (26), a support piece (27) connected to the rear end of the contact piece (26), and a support foot (28) connected to the bottom of the support piece (27). The contact piece (26) and the support piece (27) are both inclined, and the support foot (28) is close to the bottom surface of the square socket (22).

5. The waterproof connector according to claim 4, characterized in that: The inner cavity of the plug housing (5) is provided with a group of spaced pin terminal slots (29), and an open second sealing body installation slot (30) is provided at the rear of the corresponding jack terminal slot (7), and a second sealing body (31) is sealed by the second sealing body installation slot (30). The upper end of the jack terminal slot (7) is provided with a second clamping platform (32), the front end of the pin terminal (6) is provided with a first pin portion (33) in contact with the elastic contact piece (25), and the rear end is provided with a positioning portion (34), and the positioning portion (34) is provided with a second ejection spring (35) connected to the second clamping platform (32).

6. The waterproof connector according to claim 5, characterized in that: The front end of the first pin portion (33) is bent to form a second pin portion (36) overlapping with the first pin portion (33), the rear end of the second pin portion (36) extends to the positioning portion (34), and both sides of the positioning portion (34) are provided with reinforcing edges (37) wrapped around the second pin portion (36).

7. The waterproof connector according to claim 3, characterized in that: The inner end surface of the square socket (22) is provided with barbs (38).

8. The waterproof connector according to claim 1, characterized in that: Lock buckles (39) are provided on both sides of the socket housing (3), and locking platforms (40) that cooperate with the lock buckles (39) are provided on both sides of the plug housing (5).

9. The waterproof connector according to claim 8, characterized in that: The locking platform (40) comprises a positioning plate (41) and a locking plate (42) connected between the positioning plates (41); a support block slot (43) is provided at the bottom of the locking plate (42); and a support block (44) embedded in the support block slot (43) is provided on the socket housing (3).

10. The waterproof connector according to claim 1, characterized in that: The socket housing (3) is provided with an anti-foolproof positioning rib (45), and the plug housing (5) is provided with an anti-foolproof positioning opening (46) that cooperates with the anti-foolproof positioning rib (45).

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