A small coaxial contact component with plastic guiding function

Abstract

The utility model relates to the technical field of connectors, and in particular to a small coaxial contact assembly with a plastic guiding function. A guide area with a male terminal insertion guiding function is provided in the connecting end, and a cup-mouth spring is provided on the terminal. After the terminal is inserted into the insulator, the cup-mouth spring falls into the spring cavity of the insulator. A hole is provided on the connecting end, and the hole is connected to the spring cavity. A slot is provided in the inner hole cavity of the insulator. There is a raised stop in the direction of the terminal joint. When the terminal is inserted, the stop is inserted along the slot, and stops forward through the interference of the slot end and the stop. There is a raised puncture in the opposite direction of the raised stop of the terminal. After the terminal is inserted, the raised puncture is stuck in the hole and stops backward with the hole to interfere. The present application is provided with a bell-mouth guide at the front end of the insulator to better guide the male terminal to insert into the female terminal, so that the product can achieve a higher transmission frequency while being more stable in matching and smaller in size. In particular, it can effectively solve the instability problems such as crooked pins in matching during multi-channel modular assembly and integration.

Description

Technical Field

[0001] The utility model relates to a coaxial contact component, in particular to a small coaxial contact component with a plastic guiding function. Background Art

[0002] In the existing MiniFakra coaxial components with internal outer conductors, the female terminal is externally mounted. When plugged into the male terminal, the male terminal is completely guided by the opening arc of the female spring leaf petals. Due to product structural limitations, the opening arc of the female spring leaf petals is limited. When the male terminal has a large coaxiality or is inserted at a large angle, it will cause the male terminal to fail to be inserted or be damaged. See Fig.13 , 14 .

[0003] The patent number is 202222376890.9, and the name of the invention is a small coaxial contact assembly for an electrical connector. This small coaxial contact assembly for an electrical connector includes an insulator, an outer conductor, and a terminal. One side of the terminal and the outer conductor is connected to the inner conductor of the cable by crimping, and the terminal is connected and fixed in the insulator. This small coaxial contact assembly for an electrical connector can achieve a higher transmission frequency, a smaller product size, and is convenient for modular assembly to achieve multi-channel integration. The production process is simpler and can achieve mass production. However, when the connector in this application is mated, the outer conductor of the female end is inserted into the inner hole of the outer conductor of the male end for guidance, and then the contact and insertion of the terminals are performed in sequence; the female terminal is fixed in the outer conductor by the insulator, and the insulator does not directly contact the inner hole of the outer conductor during mating. If the insulator is eccentric relative to the outer conductor, it will cause the female terminal to be eccentric relative to the outer conductor when inserted; at the same time, the male terminal has no plastic guide when inserted, and the insertion of the male terminal is completely guided by the opening angle of the female end spring clip, and the tolerance for the eccentricity of the male terminal is small, see Fig.14 , which makes it difficult to insert the product, or it can’t be inserted or it is damaged when inserted. At the same time, the terminal can rotate relatively when inserted into the plastic, and the shape is not fixed, which will cause the product state to be unstable and not conducive to product testing. Utility Model Content

[0004] The utility model aims to solve the above defects and provides a small coaxial contact component with a plastic guiding function.

[0005] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: this small coaxial contact assembly with plastic guiding function includes an insulator, an outer conductor and a terminal, the front end of the insulator is provided with a connecting end for fixing the insulator in the outer conductor and a fixed end connected to the connecting end, the connecting end includes a guiding area for the male terminal to be inserted into the guiding function, a column for compensating the electrical performance of the overall structure, the guiding area includes a bell mouth, a stabilizing mouth and a female end spring clip cavity, the insulator is provided with 3 or 4 raised ribs extending backward from its front end on the column, the terminal is provided with a cup-mouth spring clip, and after the terminal is inserted into the insulator, the cup-mouth spring clip falls into the spring clip cavity of the insulator.

[0006] According to another embodiment of the utility model, the connecting end and the fixed end are further connected by connecting ribs and reinforcing ribs, a compensation hole is formed on the inner side of the connecting rib, a compensation groove and ribs are provided on the side of the fixed end, and a compensation protrusion is provided on the compensation groove.

[0007] According to another embodiment of the utility model, a hole is further provided on the column of the connecting end, the hole is connected to the spring cavity, the hole shape can be a single-sided opening or a double-sided penetration, and after the terminal is inserted into the insulator, the position shape of the cup-mouth spring of the terminal can be observed through the hole.

[0008] According to another embodiment of the utility model, a slot is further provided in the inner cavity of the insulator, and a raised stop is provided in the direction of the terminal joint. When the terminal is inserted, the stop is inserted along the slot, and stops forward through the interference between the slot end and the stop, and a hole is opened in the opposite direction of the slot in the inner cavity of the insulator, and a raised puncture is provided in the opposite direction of the raised stop of the terminal. After the terminal is inserted, the raised puncture is stuck in the hole to achieve interference with the hole and stop backward.

[0009] According to another embodiment of the utility model, the terminal further comprises a specific relative position relationship after being inserted into the insulator, so that the middle grooves of the two cup-mouth springs of the terminal correspond to the holes, and the middle grooves on either side can be observed through the holes.

[0010] According to another embodiment of the utility model, a larger observation hole is further provided on at least one finger-shaped portion of the connecting end of the outer conductor, and a contact is provided on each finger-shaped portion. After the insulator is inserted into the outer conductor, the hole has a corresponding relationship with the observation hole, and the position and shape of the cup-shaped spring of the terminal can be monitored through the observation hole.

[0011] According to another embodiment of the utility model, a protective groove is further provided at the front of the slot between two adjacent finger-shaped parts of the at least one finger-shaped part. When subjected to extreme compression, the protective groove closes to form a closed state, and the protective finger-shaped part will not be crushed.

[0012] According to another embodiment of the utility model, the tail of the fixed end of the insulator further comprises an inwardly-retracted circle, the diameter of which is smaller than the cylindrical circle.

[0013] According to another embodiment of the utility model, the insulator is further provided with 3 or 4 raised ribs extending backward from the front end thereof on the column, the outer diameter of the virtual circle formed by the raised ribs is larger than the outer diameter of the front end of the outer conductor, and smaller than the inner hole of the outer conductor of the mating end outer conductor, and when mating, the raised ribs are inserted into the inner hole of the outer conductor at the mating end and can contact and limit with the inner hole of the outer conductor, so that the insulator does not shake relative to the inner hole of the outer conductor.

[0014] According to another embodiment of the utility model, after the insulator is inserted into the outer conductor, the front end of the raised rib of the insulator is in front of the contact, so that when it is plugged with the mating end, the front end of the raised rib is inserted into the inner hole of the outer conductor before the contact.

[0015] The beneficial effects of the utility model are as follows: this small coaxial contact assembly with a plastic guiding function is provided with a bell-mouth guide at the front end of the insulator to better guide the male terminal into the female terminal, so that the product can achieve a higher transmission frequency while being more stable in matching and having a smaller product volume, and in particular, can effectively solve the instability problems such as crooked pins in matching during multi-channel modular assembly and integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of an exploded view of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the unassembled U-shaped snap ring of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model after assembly;

[0020] Figure 4 It is a structural schematic diagram of the other side of the utility model after assembly;

[0021] Figure 5 yes Figure 1 Schematic diagram of the structure of the insulator;

[0022] Figure 6 yes Figure 1 Schematic diagram of the structure on the other side of the middle insulator;

[0023] Figure 7 It is a structural diagram of the left view of the insulator;

[0024] Figure 8 yes Figure 7Schematic diagram of the structure in the middle BB direction;

[0025] Fig. 9 It is a structural schematic diagram of the left view of the utility model;

[0026] Fig.10 yes Fig. 9 Schematic diagram of the structure in the CC direction;

[0027] Fig.11 yes Figure 1 A schematic diagram of the structure of a finger-shaped portion on an outer conductor in one state;

[0028] Fig.12 yes Figure 1 A schematic diagram of the structure of the finger-shaped portion on the outer conductor in another state;

[0029] Fig.13 It is a structural schematic diagram of the situation that when the coaxiality of the male terminal in the background art is too large or the insertion is skewed, it will cause the male terminal to be unable to be inserted or be damaged;

[0030] Fig.14 It is a structural schematic diagram of the background art that when the coaxiality of the male terminal is too large or the insertion is skewed, it will cause the situation that the male terminal cannot be inserted or is damaged. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-4As shown in the figure, the insulator 1, the outer conductor 2 and the terminal 3 are included. One side of the terminal 3 is crimped through the crimping area and then connected to the cable 5. The terminal 3 is connected and fixed to the insulator 1. The insulator 1 is plug-connected and fixed to the outer conductor 2. The front end of the insulator 1 is provided with a connecting end 13 for fixing the insulator 1 in the outer conductor 2 and a fixing end 16 connected to the connecting end 13; the connecting end 13 includes a guide area 21 for guiding the insertion of the male terminal, a column 11 for compensating the electrical performance of the overall structure, and the guide area 21 includes a bell mouth 22 , a stabilizing opening 32 and a female end spring clip cavity 31, the insulator 1 is provided with three or four raised ribs 12 extending backward from the front end thereof on the column 11, the terminal 3 is provided with a cup-mouth spring clip 61, and after the terminal 3 is inserted into the insulator 1, the cup-mouth spring clip 61 falls into the spring clip cavity 31 of the insulator 1, the connecting end 13 is connected to the fixed end 16 by a connecting rib 14 and a reinforcing rib 20, a compensation hole 19 is formed on the inner side of the connecting rib 14, a compensation groove 18 and a rib 15 are provided on the side of the fixed end 16, and a compensation protrusion 17 is provided on the compensation groove 18.

[0033] Specifically, the connecting end 13 includes a column 11 at its front end, and at least one protruding rib 12 extending backward from the front end of the column 11 is provided; the outer conductor 2 includes a front end 44 that connects the insulator 1 to the inside thereof, a middle part 45 connected to the U-shaped clamping ring 6, and a rear end 47 for connecting the fixed support ring 4 and the cable 5, the front end 44 is provided with at least three finger-shaped parts 48, and at least one card slot 42 for clamping the protruding rib 12 is formed between the finger-shaped parts 48, and the middle part 45 is provided with a notch 49 and a window 50, and the U The U-shaped snap ring 6 is provided with a V-shaped protrusion 71 and an elastic arm 72. The V-shaped protrusion 71 is inserted into the window 50 on the middle part 45, and the elastic arm 72 is inserted into the notch 49 so that the U-shaped snap ring 6 is pre-fastened and connected to the middle part 45 and then crimped and wrapped into the state shown in Figure 73; the connecting end 13 of the insulator 1 is provided with a guide area 21 for guiding the insertion of the male terminal, and the guide area 21 includes a bell mouth 22, a stable mouth 32 and a female end spring clip cavity 31; the terminal 3 is provided with a cup-mouth spring clip 61, which falls into the spring clip cavity 31 of the insulator 1 after being inserted into the insulator 1. The end edge 41 of the front end 44 shrinks inwardly so that its diameter is smaller than the diameter of the front end 44. The V-shaped protrusion 71 is located in the groove 26 and blocks the stopper 25 so that the insulator 1 can be fixed forward. The elastic arm 72 is connected to the notch 49 of the outer conductor 2, so that the U-shaped clamping ring 6 can be pre-fixed with the outer conductor 2 before crimping and the U-shaped clamping ring 6 cannot rotate relative to the outer conductor 2 after crimping. The rear end of the raised rib 12 of the insulator 1 is connected to the root of the clamping groove 42 so that the insulator 1 can be fixed backward.

[0034] like Figure 5-9As shown, a hole 28 is provided on the connection end 13 of the insulator 1, and the hole 28 is connected to the spring cavity 31. The hole 28 can be a single-sided opening or a double-sided penetration. After the terminal 3 is inserted into the insulator 1, the position of the cup spring 61 of the terminal 3 can be observed through the hole 28. A slot 29 is provided in the inner hole cavity of the insulator 1, and a raised stop 62 is provided in the joint direction of the terminal 3. When the terminal 3 is inserted, the stop 62 is inserted along the slot 29, and stops forward through the interference of the slot end 30 and the stop 62. A hole 27 is provided in the opposite direction of the slot 29 of the inner hole cavity of the insulator 1, and a raised puncture 63 is provided in the opposite direction of the raised stop 62 of the terminal 3. After the terminal 3 is inserted, the raised puncture 63 is inserted into the hole 27 to achieve interference with the hole 27 and stop backward.

[0035] like Figure 6 As shown, after the terminal 3 is inserted into the insulator 1 , it has a specific relative position relationship, so that the two spring middle grooves 65 of the terminal 3 correspond to the hole 28 , and the middle groove 65 on either side can be observed through the hole 28 .

[0036] like Figure 3 As shown, at least one finger-shaped portion 48 of the connecting end of the outer conductor 2 is provided with a relatively large observation hole 43. After the insulator 1 is inserted into the outer conductor 2, the hole 28 corresponds to the observation hole 43, and the position and shape of the cup-shaped spring piece 61 of the terminal 3 can be monitored through the observation hole 43. The tail of the fixed end 16 of the insulator 1 has an inwardly retracted circle 23, whose diameter is smaller than the cylindrical circle 24.

[0037] like Figure 7 As shown, the insulator 1 is provided with three or four raised ribs 12 extending backward from the front end thereof on the column 11, and the outer diameter of the virtual circle 33 formed by the raised ribs 12 is larger than the outer diameter of the front end 44, and smaller than the inner hole of the outer conductor at the mating end. When mating, the raised ribs 12 are inserted into the inner hole 86 of the outer conductor at the mating end, and can contact and limit with the inner hole 86 of the outer conductor, so that the insulator 1 does not shake relative to the inner hole of the outer conductor.

[0038] like Figure 3 As shown, after the insulator 1 is inserted into the outer conductor 2, the front end of the raised rib 12 of the insulator is ahead of the contact 51, so that when it is plugged with the mating end, the front end of the raised rib 12 is inserted into the inner hole of the outer conductor before the contact 51.

[0039] like Fig.11 , 12 As shown, a protective groove 85 is provided at the front of the slot 42 between two adjacent finger-shaped portions 48. When subjected to extreme compression, the protective groove closes to form a closed state 84, thereby protecting the finger-shaped portions 48 from being crushed.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A small coaxial contact assembly with a plastic guiding function, comprising an insulator (1), an outer conductor (2) and a terminal (3), wherein the front end of the insulator (1) is provided with a connecting end (13) for fixing the insulator (1) in the outer conductor (2) and a fixing end (16) connected to the connecting end (13), characterized in that: The connecting end (13) comprises a guide area (21) for guiding the insertion of the male terminal, and a column (11) for compensating the electrical performance of the overall structure. The guide area (21) comprises a bell mouth (22), a stabilizing mouth (32) and a female end spring clip cavity (31). The insulator (1) is provided with three or four raised ribs (12) extending backward from its front end on the column (11). The terminal (3) is provided with a cup-mouth spring clip (61). After the terminal (3) is inserted into the insulator (1), the cup-mouth spring clip (61) falls into the spring clip cavity (31) of the insulator (1).

2. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: The connecting end (13) and the fixed end (16) are connected via a connecting rib (14) and a reinforcing rib (20); a compensation hole (19) is formed on the inner side of the connecting rib (14); a compensation groove (18) and a rib (15) are provided on the side of the fixed end (16); and a compensation protrusion (17) is provided on the compensation groove (18).

3. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: The column (11) of the connection end (13) is provided with a hole (28), the hole (28) being connected to the spring cavity (31), the hole (28) being in the form of a single-sided opening or a double-sided penetration, and after the terminal (3) is inserted into the insulator (1), the position of the cup-shaped spring (61) of the terminal (3) can be observed through the hole (28).

4. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: A slot (29) is provided in the inner cavity of the insulator (1), and a raised stopper (62) is provided in the joint direction of the terminal (3). When the terminal (3) is inserted, the stopper (62) is inserted along the slot (29) and stops forward through interference between the slot end (30) and the stopper (62). A hole (27) is provided in the opposite direction of the slot (29) in the inner cavity of the insulator (1), and a raised puncture (63) is provided in the opposite direction of the raised stopper (62) of the terminal (3). After the terminal (3) is inserted, the raised puncture (63) is inserted into the hole (27) to achieve interference with the hole (27) and stop backward.

5. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: After the terminal (3) is inserted into the insulator (1), the terminal (3) has a relative positional relationship such that the middle grooves (65) of the two cup-mouth spring pieces (61) of the terminal (3) correspond to the holes (28), and the middle grooves (65) on either side can be observed through the holes (28).

6. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: An observation hole (43) is provided on at least one finger-shaped portion (48) of the connection end of the outer conductor (2), and each finger-shaped portion (48) is provided with a contact point (51). After the insulator (1) is inserted into the outer conductor (2), the hole (28) and the observation hole (43) have a corresponding relationship, and the position and shape of the cup-shaped spring piece (61) of the terminal (3) can be monitored through the observation hole (43).

7. A small coaxial contact assembly with plastic guiding function as claimed in claim 6, characterized in that: A protective groove (85) is provided at the front of the slot (42) between two adjacent finger-shaped portions (48) of the at least one finger-shaped portion (48); when subjected to extreme compression, the protective groove (85) closes to form a closed state (84), thereby preventing the finger-shaped portion (48) from being crushed.

8. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: The tail of the fixed end (16) of the insulator (1) has an inwardly contracted circle (23) whose diameter is smaller than the cylindrical circle (24).

9. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: The outer diameter of the virtual circle (33) formed by the raised ribs (12) is larger than the outer diameter of the front end (44) of the outer conductor (2) and smaller than the outer conductor inner hole (86) of the outer conductor (2) at the mating end. When mating, the raised ribs (12) are inserted into the outer conductor inner hole (86) at the mating end and can contact and limit the inner hole (86) of the outer conductor, so that the insulator (1) does not shake relative to the inner hole (86) of the outer conductor.

10. A small coaxial contact assembly with plastic guiding function as claimed in claim 1, characterized in that: After the insulator (1) is inserted into the outer conductor (2), the front end of the raised rib (12) of the insulator (1) is in front of the contact (51), so that when the insulator (1) is plugged into a mating end, the front end of the raised rib (12) is inserted into the inner hole (86) of the outer conductor before the contact (51).

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