Female end signal terminal, insulating shell and female end connector

Abstract

The utility model relates to the field of electric connectors, in particular to a female end signal terminal, an insulating shell and a female end connector. The female end signal terminal is used for solving the technical problem that an existing electric terminal is prone to deflection in an insulating shell, so that a whole connector fails. The insulating shell is used for solving the technical problem that an existing electric terminal is easy to deflect in the insulating shell to cause the overall failure of a connector. The female end connector is used for solving the technical problem that an existing female end connector is prone to failure. The female end signal terminal comprises a cylinder body, and the front end of the cylinder body is provided with an anti-inclination convex part which is used for being in plug-in fit with the positioning cavity on the insulating shell so as to prevent the cylinder body from inclining laterally in the terminal mounting cavity of the insulating shell.

Description

Technical Field

[0001] The utility model relates to the field of electric connectors, in particular to a female signal terminal, an insulating shell and a female connector. Background Art

[0002] With the rapid development of intelligent technology in new energy vehicles, the signal connectors used in new energy vehicles are becoming increasingly miniaturized. The density of contacts on automotive connectors is also increasing, and the specifications of contacts are also getting smaller. How to optimize the structure of contacts while miniaturizing the product to achieve the purpose of improving product performance has become one of the main research and development directions of signal connectors.

[0003] Existing miniaturized jack structures, such as the electric terminal disclosed in the Chinese invention application with application publication number CN115621810A, can meet the current high-density miniaturized electrical connection requirements on new energy vehicles. After this electric terminal is inserted into the mounting hole of the insulating housing, the front end of the electric terminal is pressed against the corresponding cavity surface of the mounting hole to realize the positioning of the electric terminal in the mounting hole along the insertion direction. A positioning spring is provided on the electric terminal or on the hole wall of the mounting hole so as to cooperate with the corresponding positioning boss on the other after the electric terminal is inserted into place, so as to realize the positioning of the electric terminal in the mounting hole in the direction away from the insertion direction. Since the positioning spring can retract inward under the action of external force, no matter whether the positioning spring is located on the electric terminal or on the hole wall of the mounting hole, under the influence of a certain external force, the electric terminal may deflect toward the positioning spring in the mounting hole, thereby causing the failure of the connector as a whole. This undoubtedly strictly requires the technical requirements of product structure design, packaging and transportation, assembly and other links, and increases the processing and production costs of related connector products in the above links. Utility Model Content

[0004] The purpose of the utility model is to provide a female signal terminal to solve the technical problem that the existing electrical terminal is prone to deflection in the insulating housing, which leads to the overall failure of the connector. The purpose of the utility model is to provide an insulating housing to solve the technical problem that the existing electrical terminal is prone to deflection in the insulating housing, which leads to the overall failure of the connector. The purpose of the utility model is to provide a female connector to solve the technical problem that the existing female connector is prone to failure.

[0005] The utility model adopts the following technical solutions:

[0006] A female signal terminal comprises a barrel, wherein the front end of the barrel is provided with an anti-tilting convex portion for inserting and matching with a positioning cavity on an insulating shell to prevent the barrel from tilting in a terminal installation cavity of the insulating shell.

[0007] Furthermore, the side of the anti-tilt protrusion facing away from the anti-elasticity claw of the insulating shell is a straight mating surface, which is used to guide and cooperate with the straight guide surface on the insulating shell when the cylinder is pressed against the anti-elasticity claw of the insulating shell during the insertion process so that the anti-tilt protrusion guides the insertion and fits into the positioning cavity.

[0008] Furthermore, a positioning boss for engaging with an anti-elasticity claw of an adapted insulating shell is provided on the cylinder; the positioning boss is integrally bent and formed with the main body of the cylinder.

[0009] Furthermore, the side wall of the cylinder facing the anti-elasticity claw on the adaptable insulating shell is a double-layer side wall formed by overlapping; the positioning boss is arranged on the outer layer of the double-layer side wall, and the last bent wall is extended with a clamping wall, and the inner layer of the double-layer side wall and the side wall connected to the inner layer are provided with a clamping groove adapted to the clamping wall, and the clamping wall is clamped in the clamping groove, so that the positioning boss has good structural rigidity.

[0010] Furthermore, the positioning boss is offset on the cylinder along the width direction of the cylinder.

[0011] Furthermore, a secondary positioning locking mating boss is provided at the rear end of the cylinder body, so as to cooperate with the secondary positioning locking sheet to realize secondary positioning of the cylinder body.

[0012] Beneficial effects: The utility model improves the existing electrical terminals, and specifically proposes a female signal terminal. The female signal terminal described in the utility model includes a cylinder, and the front end of the cylinder is provided with an anti-tilt protrusion for plugging and matching with the positioning cavity on the insulating shell to prevent the cylinder from tilting in the terminal installation cavity of the insulating shell. Since the front end of the cylinder is plugged and matched with the positioning cavity on the insulating shell, the front end of the cylinder will be constrained in the positioning cavity after being inserted into place, so that the entire cylinder is not easy to swing in the terminal installation cavity. Therefore, the above-mentioned arrangement can ensure the position of the female signal terminal in the matching terminal installation cavity. Even if affected by external force, the female signal terminal is still not easy to swing in any direction, which effectively avoids the failure of the connector as a whole due to the swing of the female signal terminal.

[0013] An insulating shell is provided with a terminal installation cavity, one end of which is used for inserting an adapted female signal terminal; a positioning cavity is provided at the front end of the terminal installation cavity for inserting and cooperating with an anti-tilt protrusion on the female signal terminal to prevent the female signal terminal from tilting in the terminal installation cavity.

[0014] Furthermore, an anti-dropout claw is provided on one of the side walls of the terminal installation cavity, and the side of the terminal installation cavity facing away from the anti-dropout claw is a straight guide surface, which is used to guide and cooperate with the straight mating surface of the female signal terminal pressed against the straight guide surface by the anti-dropout claw so that the anti-tilt protrusion of the female signal terminal can be inserted and fitted into the positioning cavity.

[0015] Beneficial effects: The utility model improves the existing insulating shell. The insulating shell described in the utility model includes a terminal installation cavity arranged thereon, and one end of the terminal installation cavity is used for inserting the adapted female signal terminal. The front end of the terminal installation cavity is provided with a positioning cavity for plugging and matching with the anti-tilt protrusion on the female signal terminal to prevent the female signal terminal from tilting in the terminal installation cavity. Since the front end of the female signal terminal is plugged and matched with the positioning cavity on the insulating shell, the front end of the female signal terminal will be constrained in the positioning cavity after being inserted into place, so that the entire female signal terminal is not easy to swing in the terminal installation cavity. Therefore, the above-mentioned arrangement can ensure the position of the female signal terminal in the terminal installation cavity. Even if affected by external force, the female signal terminal is still not easy to swing in any direction, which effectively avoids the failure of the connector as a whole due to the swing of the female signal terminal.

[0016] A female connector comprises an insulating shell and a female signal terminal, wherein the insulating shell is provided with a terminal installation cavity, and the female signal terminal is inserted into the terminal installation cavity; the front end of the female signal terminal is provided with an anti-tilt protrusion, and the front end of the terminal installation cavity is provided with a positioning cavity for inserting and cooperating with the anti-tilt protrusion to prevent the female signal terminal from tilting in the terminal installation cavity.

[0017] Furthermore, an anti-dropout claw is provided on the inner wall of the terminal installation cavity; the side of the anti-tilt protrusion facing away from the anti-dropout claw is a straight mating surface, and the side of the terminal installation cavity facing away from the anti-dropout claw is a straight guide surface, and the anti-dropout claw presses the female signal terminal against the straight guide surface, so that the straight mating surface of the female signal terminal can be guided and matched with the straight guide surface so that the anti-tilt protrusion can be inserted and matched into the positioning cavity.

[0018] Furthermore, the female signal terminal is provided with a positioning boss that cooperates with the anti-dropping claw of the insulating shell; the positioning boss is integrally bent and formed with the main body of the female signal terminal.

[0019] Furthermore, the side wall on the female signal terminal facing the anti-dropping claw is a double-layer side wall formed by overlapping; the positioning boss is arranged on the outer layer of the double-layer side wall, and the last bent side wall is extended with a clamping wall, and the inner layer of the double-layer side wall and the side wall connected to the inner layer are provided with a clamping groove adapted to the clamping wall, and the clamping wall is clamped in the clamping groove, so that the positioning boss has good structural rigidity.

[0020] Furthermore, the positioning boss is offset on the female signal terminal along the width direction of the female signal terminal.

[0021] Furthermore, the female connector also includes a secondary positioning locking piece; the rear end of the female signal terminal is provided with a secondary positioning locking mating boss, and the secondary positioning locking piece is engaged with the rear end stop of the secondary positioning locking mating boss to perform secondary positioning on the female signal terminal.

[0022] Beneficial effects: The utility model improves the existing connectors, and specifically proposes a female connector. The female connector of the utility model includes an insulating shell and a female signal terminal. A terminal mounting cavity is provided on the insulating shell, and the female signal terminal is inserted into the terminal mounting cavity. An anti-tilt protrusion is provided at the front end of the female signal terminal, and a positioning cavity for inserting and cooperating with the anti-tilt protrusion is provided at the front end of the terminal mounting cavity. Since the front end of the female signal terminal is inserted and matched with the positioning cavity on the insulating shell, the front end of the female signal terminal will be constrained in the positioning cavity after being inserted into place, so that the entire female signal terminal is not easy to swing in the terminal mounting cavity. Therefore, the above-mentioned arrangement can ensure the position of the female signal terminal in the terminal mounting cavity. Even if affected by external force, the female signal terminal is still not easy to swing in any direction, which effectively avoids the failure of the connector as a whole due to the swing of the female signal terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an assembly diagram of an insulating housing and a female signal terminal of an embodiment of the female connector of the utility model;

[0024] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of the female connector of the utility model;

[0025] Figure 3 for Figure 1 Off-axis view of the middle female signal terminal;

[0026] Figure 4 for Figure 3 The main view of

[0027] Figure 5 for Figure 4 A top view of

[0028] Figure 6 for Figure 4 Bottom view of

[0029] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. female signal terminal; 2. insulating shell; 3. terminal installation cavity; 4. anti-dropping claw; 5. positioning boss; 6. plug interface; 7. connecting part; 8. first side wall; 9. second side wall; 10. third side wall; 11. fourth side wall; 12. cantilever; 13. first elastic arm; 14. second elastic arm; 15. anti-tilt convex part; 16. positioning cavity; 17. straight mating surface; 18. straight guide surface; 19. snap-on wall; 20. snap-on groove; 21. fifth side wall; 22. release groove; 23. connecting groove; 24. snap eave; 25. secondary positioning locking mating boss; 26. secondary positioning locking sheet. DETAILED DESCRIPTION

[0030] The principle of the female connector of the utility model is as follows:

[0031] A female connector includes an insulating housing 2 and a female signal terminal 1. The insulating housing 2 and the female signal terminal 1 can refer to Figure 1 and Figure 2 The arrangement is integrated into one. The insulating housing 2 is provided with a terminal installation cavity 3, and the female signal terminal 1 is fixedly inserted in the terminal installation cavity 3. The structure of the female signal terminal 1 can be referred to Figure 3-6 As shown, the front end is provided with an anti-tilt protrusion 15. The front end of the terminal installation cavity 3 adapted thereto is provided with a positioning cavity 16 for inserting and matching with the anti-tilt protrusion 15 to prevent the female signal terminal 1 from tilting in the terminal installation cavity 3.

[0032] Since the front end of the female signal terminal 1 is inserted and matched with the positioning cavity 16 on the insulating housing 2, the front end of the female signal terminal 1 will be constrained in the positioning cavity 16 after being inserted into place, so that the entire female signal terminal 1 is not easy to swing in the terminal installation cavity 3. Therefore, the above-mentioned setting can ensure the position of the female signal terminal 1 in the terminal installation cavity 3. Even if affected by external force, the female signal terminal 1 is still not easy to swing in any direction, which effectively avoids the failure of the connector as a whole due to the swing of the female signal terminal 1.

[0033] Based on the above-mentioned principle, the embodiment 1 of the female connector of the utility model is:

[0034] A female connector, refer to Figure 5 As shown, it includes an insulating housing 2 and a female signal terminal 1. The insulating housing 2 and the female signal terminal 1 can be referred to Figure 1 and Figure 2The arrangement is integrated by plugging and assembling. The insulating housing 2 is provided with a terminal installation cavity 3, and the female signal terminal 1 is fixedly inserted in the terminal installation cavity 3. The insulating housing 2 can be provided with a plurality of terminal installation cavities 3, such as 10, 20, or 30, so that a corresponding number of female signal terminals 1 can be fixedly inserted in the terminal installation cavity 3. The structure of the female signal terminal 1 can refer to Figure 3-6 As shown, it is specifically a rectangular cylindrical structure. The rectangular cylindrical structure is relatively simple, easy to form, and has good dimensional consistency. The front end of the rectangular cylindrical structure has an insertion port 6 for inserting the pin of the male connector, and the rear end has a connection portion 7 for conductively fixed connection with the cable. The rectangular cylindrical structure includes a first side wall 8, a second side wall 9, a third side wall 10, and a fourth side wall 11. The middle of the first side wall 8 and the second side wall 9 are hollowed out so as to form a cantilever 12 thereon. The cantilevers 12 of the first side wall 8 and the second side wall 9 are both arched toward the inside of the rectangular cylindrical structure to form a contact portion electrically connected to the pin of the matching male connector. The arched portion of the cantilever 12 of the first side wall 8 is also provided with a first elastic arm 13 facing the inside of the rectangular cylindrical structure to further improve the conductive contact ability of the cantilever 12 with the pin of the matching male connector. The third side wall 10 is provided with a second elastic arm 14 directly opposite to the first elastic arm 13 to increase the contact points on the female connector that can be used for electrical contact with the pin of the matching male connector. The ends of the cantilever 12 of the first side wall 8 and the second side wall 9 are connected together to increase the contact area between the cantilever 12 and the pin of the adapter male connector. And because the cantilever 12 is located on two adjacent cylinder walls of the rectangular cylinder structure and connected to each other, the cantilever 12 is mutually restricted to prevent the cantilever 12 on either side from being greatly deformed, thereby ensuring that the cantilever 12 can always reliably press against the pin of the adapter connector, effectively preventing the cantilever 12 from failing or reducing its usable life due to large deformation.

[0035] When the female signal terminal 1 is inserted into the terminal installation cavity 3, the front end face of the female signal terminal 1 is stopped and matched with the cavity wall of the terminal installation cavity 3 to realize the positioning of the female signal terminal 1 in the terminal installation cavity 3 along its insertion direction. The inner wall of the terminal installation cavity 3 is provided with an anti-dropout claw 4 that protrudes toward the front end of the female signal terminal 1. The aforementioned female signal terminal 1 is provided with a positioning boss 5 for positioning and matching with the anti-dropout claw 4. After the female signal terminal 1 is inserted into the terminal installation cavity 3, the anti-dropout claw 4 is stopped and matched with the rear end face of the positioning boss 5 to realize the positioning of the female signal terminal 1 in the terminal installation cavity 3 in the direction opposite to its insertion direction. In this embodiment, the positioning boss 5 can be set on the fourth side wall 11. At this time, the anti-dropout claw 4 on the terminal installation cavity 3 is set opposite to the fourth side wall 11.

[0036] An anti-tilt protrusion 15 is provided at the front end of the female signal terminal 1, and a positioning cavity 16 is provided at the front end of the terminal mounting cavity 3. The positioning cavity 16 is plugged into and matched with the anti-tilt protrusion 15 to prevent the female signal terminal 1 from tilting in any direction in the terminal mounting cavity 3, especially toward the anti-dropping claw 4, thereby avoiding the risk of failure of the female connector due to the tilting of the female signal terminal 1.

[0037] On the basis of the above structure, the key point of this embodiment is that, in order to facilitate the insertion and matching of the anti-tilt protrusion 15 and the positioning cavity 16, the side of the anti-tilt protrusion 15 facing away from the anti-elastic claw 4 can be a straight matching surface 17, and the side of the terminal installation cavity 3 facing away from the anti-elastic claw 4 can be a straight guide surface 18. The anti-elastic claw 4 presses the female signal terminal 1 against the straight guide surface 18, so that the straight matching surface 17 of the female signal terminal 1 can be guided and matched with the straight guide surface 18 so that the anti-tilt protrusion 15 can be inserted and matched into the positioning cavity 16.

[0038] Specifically, since the anti-dropout claw 4 overhangs toward the front end of the female signal terminal 1, the female signal terminal 1 can be pressed against the straight guide surface 18 of the terminal installation cavity 3 by the anti-dropout claw 4 during the process of being inserted into the terminal installation cavity 3. At this time, the straight mating surface 17 of the female signal terminal 1 can be guided and matched with the straight guide surface 18, and the anti-tilt protrusion 15 of the female signal terminal 1 can be accurately inserted into the positioning cavity 16. After the female signal terminal 1 is inserted into place relative to the terminal installation cavity 3, the anti-tilt protrusion 15 at the front end of the female signal terminal 1 is just completely inserted into the positioning cavity 16. Therefore, under the tight retention of the cavity wall of the positioning cavity 16 and the anti-dropout claw 4, it is difficult for the female signal terminal 1 to tilt in the direction away from and toward the anti-dropout claw 4. In this way, the female signal terminal 1 is stably maintained in the terminal installation cavity 3, effectively avoiding the situation where the female connector fails due to the tilting of the female signal terminal 1.

[0039] It should be noted that when the anti-dropping claw 4 is arranged on the female signal terminal 1 and the positioning boss 5 is arranged on the insulating shell 2, the specific arrangement and technical effects of the anti-tilting protrusion 15 and the positioning cavity 16 can be referred to above and will not be repeated here.

[0040] The positioning boss 5 is integrally bent and formed with the body of the female signal terminal 1. This allows the positioning boss 5 and the body of the female signal terminal 1 to have good structural rigidity, avoiding the possibility of structural deformation and failure of the positioning boss 5. Of course, the positioning boss 5 can also be welded to the body of the female signal terminal 1 by welding alone, or directly formed by a stamping process.

[0041] When the positioning boss 5 and the body of the female signal terminal 1 are formed by an integral bending process, the side wall of the female signal terminal 1 facing the anti-drop claw 4 can be a double-layer side wall formed by overlapping. The positioning boss 5 is arranged on the outer layer of the double-layer side wall, and the last bent wall is extended with a clamping wall 19, and the inner layer of the double-layer side wall and the side wall connected to the inner layer are provided with a clamping groove 20 adapted to the clamping wall 19. The clamping wall 19 is clamped in the clamping groove 20, so that the positioning boss 5 has good structural rigidity. For details, please refer to Figure 1-4 As shown, the aforementioned rectangular cylindrical structure also includes a fifth side wall 21. The first side wall 8, the second side wall 9, the third side wall 10, the fourth side wall 11, and the fifth side wall 21 are all formed by bending the sheet metal in one piece. The fifth side wall 21 overlaps the outer side of the first side wall 8 to form a double-layer side wall, so that the outward movement of the first side wall 8 can be constrained by the fifth side wall 21. The positioning boss 5 is formed by bending part of the fifth side wall 21, and the last bent part thereof extends with a clamping wall 19 toward the first side wall 8. A large arc is provided at the root of the release groove 22 on the fifth side wall 21 for cutting out the part of the positioning boss 5 to prevent a large stress concentration from being generated at this position and thus tearing the fifth side wall 21. A clamping groove 20 for the clamping wall 19 to be clamped is provided on the first side wall 8 and the second side wall 9. After the clamping wall 19 is clamped into the clamping groove 20, the front and rear end surfaces of the clamping wall 19 are stopped and matched with the corresponding groove surfaces on the clamping groove 20. In this way, when the female signal terminal 1 is inserted into the terminal installation cavity 3, the force applied to the positioning boss 5 will be shared by the snap-in groove 20. This avoids the possibility of deformation or tearing of the root of the positioning boss 5 connected to the fifth side when a large force is applied, and also effectively avoids the deformation of the positioning boss 5 itself. A connecting groove 23 can also be provided on the first side wall 8 and the fourth side wall 11, and a snap-in eave 24 adapted to the connecting groove 23 is provided on the side of the first side wall 8 relative to the fourth side wall 11; the snap-in eave 24 is snap-fitted into the connecting groove 23 to strengthen the cylindrical structural strength of the female signal terminal 1. The front end of the positioning boss 5 is preferably processed with an inclined bevel to reduce the resistance of the female signal terminal 1 inserted into the terminal installation cavity 3, thereby improving the efficiency of inserting the female signal terminal 1 into the terminal installation cavity 3.

[0042] Based on the above structure, the positioning boss 5 can be offset on the female signal terminal 1 along the width direction of the female signal terminal 1. In this embodiment, the positioning boss 5 is arranged on the side of the fifth side wall 21 that is offset from the clamping groove 20. In this way, the positioning boss 5 can be used as an error-proof structure to facilitate correct installation. Of course, the positioning boss 5 can also be centrally arranged on the center plane of the fifth side wall 21 to facilitate design and processing.

[0043] In addition, the female connector can also include a secondary positioning locking piece 26, and a secondary positioning locking mating boss 25 is set at the rear end of the female signal terminal 1. The secondary positioning locking mating boss 25 can be formed on the fifth side wall 21 by stamping, and specifically includes a transition slope located at its front end and a stop surface located at its rear end. When the female signal terminal 1 is inserted into place relative to the terminal installation cavity 3, the secondary positioning locking piece 26 is fixed to the rear side of the secondary positioning locking mating boss 25, so that the stop surface of the secondary positioning locking mating boss 25 is stopped and matched with the secondary positioning locking piece 26, so as to achieve the secondary positioning effect on the female signal terminal 1, thereby ensuring that the female signal terminal 1 is reliably installed in the terminal installation cavity 3. In addition, if the female signal terminal 1 is not inserted into place relative to the terminal installation cavity 3, the secondary positioning locking piece 26 cannot be fully installed. Therefore, it is possible to judge whether the female signal terminal 1 is fully inserted into place by the installation of the secondary positioning locking piece 26, so as to ensure the yield rate of the female connector in production.

[0044] The parts not mentioned in this embodiment are consistent with other embodiments.

[0045] Embodiments of the female signal terminal of the utility model:

[0046] The embodiment of the female signal terminal of the present invention is consistent with the principle of the scheme of the aforementioned female connector and the female signal terminal 1 described in Embodiment 1, so no further details will be given.

[0047] Embodiments of the insulating housing of the utility model:

[0048] The embodiment of the insulating housing described in the present invention is consistent with the principle of the aforementioned female connector and the insulating housing 2 described in Embodiment 1, so no further details are given.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A female signal terminal, comprising a barrel, characterized in that: The front end of the cylinder is provided with an anti-tilting protrusion (15) for inserting and engaging with a positioning cavity (16) on the insulating housing (2) to prevent the cylinder from tilting in the terminal installation cavity (3) of the insulating housing (2).

2. The female signal terminal according to claim 1, characterized in that: The side of the anti-tilt convex portion (15) facing away from the anti-elasticity claw (4) of the insulating housing (2) is a straight mating surface (17) for guiding and mating with a straight guide surface (18) on the insulating housing (2) when the barrel is pressed against the anti-elasticity claw (4) of the insulating housing (2) during the insertion process, so that the anti-tilt convex portion (15) is guided and mated into the positioning cavity (16).

3. The female signal terminal according to claim 1, characterized in that: The cylinder is provided with a positioning boss (5) for engaging with an anti-elasticity claw (4) of the matching insulating shell (2); the positioning boss (5) is formed integrally with the main body of the cylinder by bending.

4. The female signal terminal according to claim 3, characterized in that: The side wall of the cylinder body facing the anti-elastic claw (4) on the adaptable insulating shell (2) is a double-layer side wall formed by overlapping; the positioning boss (5) is arranged on the outer layer of the double-layer side wall, and the last bent wall thereof is extended with a clamping wall (19); the inner layer of the double-layer side wall and the side wall connected to the inner layer are provided with a clamping groove (20) adapted to the clamping wall (19), and the clamping wall (19) is clamped in the clamping groove (20), so that the positioning boss (5) has good structural rigidity.

5. The female signal terminal according to claim 3 or 4, characterized in that: The positioning boss (5) is offset on the cylinder along the width direction of the cylinder.

6. The female signal terminal according to any one of claims 1 to 4, characterized in that: The rear end of the cylinder is provided with a secondary positioning locking matching boss (25) for matching with a secondary positioning locking sheet (26) to achieve secondary positioning of the cylinder.

7. An insulating housing, provided with a terminal installation cavity (3), wherein one end of the terminal installation cavity (3) is used for inserting a matching female signal terminal (1); characterized in that: The front end of the terminal installation cavity (3) is provided with a positioning cavity (16) for inserting and cooperating with the anti-tilt protrusion (15) on the female signal terminal (1), so as to prevent the female signal terminal (1) from tilting inside the terminal installation cavity (3).

8. The insulating housing according to claim 7, characterized in that: An anti-elasticity claw (4) is provided on one of the side walls of the terminal installation cavity (3), and a side of the terminal installation cavity (3) facing away from the anti-elasticity claw (4) is a straight guide surface (18) for guiding and mating with a straight mating surface (17) of a female signal terminal (1) pressed against the straight guide surface (18) by the anti-elasticity claw (4) so ​​that the anti-tilting protrusion (15) of the female signal terminal (1) is inserted and mated into the positioning cavity (16).

9. A female connector, comprising an insulating housing (2) and a female signal terminal (1), wherein the insulating housing (2) is provided with a terminal installation cavity (3), and the female signal terminal (1) is inserted into the terminal installation cavity (3); characterized in that: The front end of the female signal terminal (1) is provided with an anti-tilt convex portion (15), and the front end of the terminal installation cavity (3) is provided with a positioning cavity (16) for inserting and cooperating with the anti-tilt convex portion (15) to prevent the female signal terminal (1) from tilting in the terminal installation cavity (3).

10. The female connector according to claim 9, characterized in that: An anti-dropout claw (4) is provided on the inner wall of the terminal installation cavity (3); the side of the anti-tilt protrusion (15) facing away from the anti-dropout claw (4) is a straight mating surface (17); the side of the terminal installation cavity (3) facing away from the anti-dropout claw (4) is a straight guide surface (18); the anti-dropout claw (4) presses the female signal terminal (1) against the straight guide surface (18) so that the straight mating surface (17) of the female signal terminal (1) can be guided and matched with the straight guide surface (18) so that the anti-tilt protrusion (15) can be inserted and matched into the positioning cavity (16).

11. The female connector according to claim 10, characterized in that: The female signal terminal (1) is provided with a positioning boss (5) that cooperates with the anti-elastic claw (4) of the insulating housing (2); the positioning boss (5) is integrally bent and formed with the main body of the female signal terminal (1).

12. The female connector according to claim 11, characterized in that: The side wall on the female signal terminal (1) facing the anti-dropping claw (4) is a double-layer side wall formed by overlapping; the positioning boss (5) is arranged on the outer layer of the double-layer side wall, and the last bent side wall is extended with a clamping wall (19); the inner layer of the double-layer side wall and the side wall connected to the inner layer are provided with a clamping groove (20) adapted to the clamping wall (19), and the clamping wall (19) is clamped in the clamping groove (20) so that the positioning boss (5) has good structural rigidity.

13. The female connector according to claim 11 or 12, characterized in that: The positioning boss (5) is offset on the female signal terminal (1) along the width direction of the female signal terminal (1).

14. The female connector according to any one of claims 9 to 12, characterized in that: It also includes a secondary positioning locking piece (26); a secondary positioning locking mating boss (25) is provided at the rear end of the female signal terminal (1); the secondary positioning locking piece (26) is engaged with the rear end of the secondary positioning locking mating boss (25) to perform secondary positioning on the female signal terminal (1).

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