Short connector

Abstract

The utility model discloses a short body connector, which comprises a metal shell, an insulating rubber core and a plurality of terminals, the insulating rubber core comprises an insulating base and a lingual plate, the metal shell is fixedly connected with the insulating base positioned at the tail part of the metal shell, the lingual plate is positioned inside the metal shell, and the terminals are arranged in terminal mounting grooves arranged on the lingual plate. According to the utility model, the length from the tail part of the insulating base to the head part of the metal shell is 8-10mm, so that the overall length of the connector is greatly shortened, the metal shell adopts a reverse elastic sheet design, and the free end of the reverse elastic sheet faces the tail part of the metal shell; therefore, a good locking force between the reverse elastic sheet on the metal shell of the connector female seat and the connector male head can be ensured, the plugging force is improved, and the problem that the connector male head cannot be locked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic connectors, and more specifically to a short-body connector. Background Art

[0002] With the booming development of today's technology industry, electronic products are becoming more and more popular. As electronic products become more popular, related connection devices, such as USB connectors, are also increasing with the number of electronic products.

[0003] The current USB connector is generally provided with a metal shell, an insulating rubber core and a plurality of terminals, the metal shell cover is arranged on the outside of the insulating rubber core, and the terminal is installed in the terminal mounting groove of the insulating rubber core. In order to meet the needs of the ultra-thin development of electronic products, the overall length of the existing USB connector is getting shorter and shorter, such as the USB short-body connector described in the patent application number 202121149483.3. However, when the overall length of the USB connector is shortened, it will bring the following problems: It is known that the spring on the metal shell of the connector female seat needs to be pressed against the connector male head to lock the connector male head, and the overall length of the connector is shortened by reducing the length of the metal shell. When the length of the metal shell is shortened, the position of the spring is required to retreat. At this time, the contact position of the spring and the connector male head will change, so that the locking force between the spring on the metal shell of the connector female seat and the connector male head will become worse, the plug-in force will become smaller, and the connector male head may not be locked, and the common connector male head on the market cannot be used. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide a short-body connector that can shorten the overall length of the connector, ensure that there is a good locking force between the spring sheet and the male head of the connector, improve the plugging and unplugging force, and avoid the problem of the male head of the connector not being able to be locked.

[0005] To achieve the above-mentioned purpose, the utility model provides a short-body connector, comprising a metal shell, an insulating rubber core and a plurality of terminals, wherein the insulating rubber core comprises an insulating base and a tongue plate, wherein the tongue plate is vertically connected to the insulating base, the metal shell is fixedly connected to the insulating base located at its tail, the tongue plate is located inside the metal shell, and the terminal is installed in a terminal installation groove opened on the tongue plate, and the welding foot portion of the terminal passes through the tail of the insulating base and then extends to the outside of the insulating base, and the length between the tail of the insulating base and the head of the metal shell is 8 to 10 mm, and reverse spring sheets with inward bending protrusions are respectively provided on at least two opposite surfaces of the metal shell, and one end of each reverse spring sheet is respectively connected to the metal shell in a corresponding hole position of the metal shell, and the other end of the reverse spring sheet is a free end and faces the tail of the metal shell.

[0006] Preferably, the terminal comprises a terminal head, a terminal contact portion, a terminal base portion, a terminal solder leg connecting portion and a terminal solder leg connected in sequence, the terminal contact portion is bent in a V-shape and protrudes from the surface of the tongue plate, first stop teeth are respectively provided on both sides of the terminal base portion, the terminal base portion is perpendicular to the terminal solder leg connecting portion, and second stop teeth are respectively provided on both sides of the terminal solder leg connecting portion.

[0007] Preferably, the metal shell is provided with limiting hooks on both sides of the tail end, and the insulating base is provided with limiting grooves on both sides of the tail end. The limiting hooks are bent inwardly and placed in the limiting grooves, so that the metal shell is fixedly connected to the insulating base.

[0008] Preferably, positioning pins for inserting into holes of a circuit board are respectively provided on both sides of the tail end of the metal shell, and pin avoidance grooves are respectively provided on both sides of the tail end of the insulating base.

[0009] Preferably, the head end of the tongue plate protrudes from the head end of the metal shell, thereby extending to the outside of the head end of the metal shell.

[0010] As another preferred embodiment, the head end of the tongue plate is flush with the head end of the metal shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model has a simple structure and a reasonable design. The length between the tail of the insulating base and the head of the metal shell is set to 8-10 mm, which greatly shortens the overall length of the connector. The metal shell adopts a reverse spring design, and the free end of the reverse spring is facing the tail of the metal shell. In this way, it can ensure that the reverse spring on the metal shell of the connector female seat has a good locking force with the connector male head, improve the plug-in force, and avoid the problem of not being able to lock the connector male head.

[0013] 2. The length of the tongue plate of the utility model does not need to be shortened, and the head end of the tongue plate protrudes from the head end of the metal shell, so that the contact position of the terminal does not need to be changed, which can avoid the problem of mismatch with some connector male heads due to changes in the contact position of the terminal, thereby improving the versatility of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the short body connector provided by the embodiment of the utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the short body connector provided by the embodiment of the utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of the short body connector provided by the embodiment of the utility model. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the structure of the short-body connector provided by the embodiment of the utility model with the metal shell hidden;

[0019] Figure 5 It is a schematic diagram of the structure of the terminal provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 3 An embodiment of the utility model provides a short body connector, including a metal shell 1, an insulating rubber core 2 and a plurality of terminals 3. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the insulating rubber core 2 may include an insulating base 21 and a tongue plate 22 . The tongue plate 22 is vertically connected to the insulating base 21 , and a plurality of terminal mounting grooves 23 are formed on the tongue plate 22 .

[0023] like Figure 2 As shown, the insulating base 21 is located at the rear end of the metal shell 1, the metal shell 1 is arranged in a square shape, and limiting hooks 12 are respectively provided on both sides of the rear end of the metal shell 1, and limiting grooves 24 are respectively provided on both sides of the rear end of the insulating base 21. When the limiting hooks 12 are bent inwardly by 90 degrees, they are placed in the limiting grooves 24, so that the metal shell 1 is fixedly connected to the insulating base 21.

[0024] like Figure 3As shown, the length H between the tail of the insulating base 21 and the head of the metal shell 1 can be set to 8-10 mm, preferably 8.8 mm.

[0025] like Figure 1 and Figure 3 As shown, the tongue plate 22 is located inside the metal shell 1. Preferably, the head end of the tongue plate 22 can protrude from the head end of the metal shell 1, thereby extending to the outside of the head end of the metal shell 1. Of course, according to actual needs, in other embodiments, the head end of the tongue plate 22 can also be flush with the head end of the metal shell 1.

[0026] like Figure 4 As shown, the terminal 3 is installed in the terminal installation groove 23 opened on the tongue plate 22 , and the welding foot portion of the terminal 3 passes through the rear portion of the insulating base 21 and then extends to the outside of the insulating base 21 .

[0027] Specifically, Figure 4 and Figure 5 As shown, the terminal 3 may include a terminal head 31, a terminal contact portion 32, a terminal base portion 33, a terminal solder leg connection portion 34 and a terminal solder leg portion 35 connected in sequence, the terminal contact portion 32 is bent in a V-shape and protrudes from the surface of the tongue plate 22, and first stop teeth 36 are respectively provided on both sides of the terminal base portion 33, and the first stop teeth 36 can be engaged with the inner wall of the terminal mounting groove 23 to prevent the terminal from withdrawing from the terminal mounting groove 23, the terminal base portion 33 is perpendicular to the terminal solder leg connection portion 34, and the terminal solder leg connection portion 34 is located in the solder leg accommodating groove opened at the tail end of the insulating base 21, and second stop teeth 37 are respectively provided on both sides of the terminal solder leg connection portion 34, and the second stop teeth 37 can be engaged with the inner wall of the solder leg accommodating groove to prevent the terminal solder leg connection portion 34 from withdrawing from the solder leg accommodating groove.

[0028] In other embodiments, the terminal base portion 33 , the terminal solder leg connecting portion 34 and the terminal solder leg portion 35 may also be on the same straight line, so that the terminal forms a 180-degree straight terminal.

[0029] like Figures 1 to 3 As shown, reverse spring pieces 11 are respectively provided on the four surfaces of the metal shell 1, one end of each reverse spring piece 11 is respectively connected to the metal shell 1 in the corresponding hole position of the metal shell 1 (close to the head of the metal shell 1), and the other end of each reverse spring piece 11 is a free end (i.e. not connected to the metal shell), and the free end faces the tail of the metal shell 1. Each reverse spring piece 11 is bent inward to form a bulge, thereby forming a contact point for pressing and contacting with the male connector.

[0030] like Figure 2 and Figure 4As shown, positioning pins 13 for inserting into holes of a circuit board are respectively provided on both sides of the tail end of the metal shell 1, and pin avoidance grooves 25 are respectively provided on both sides of the tail end of the insulating base 21.

[0031] The short body connector has the following advantages:

[0032] 1. The length between the tail of the insulating base and the head of the metal shell is set to 8-10 mm, which greatly shortens the overall length of the connector and reduces the volume.

[0033] 2. The metal shell adopts a reverse spring clip design, which can shorten the overall length of the connector while ensuring that the reverse spring clip on the metal shell of the connector female seat and the connector male head have a good locking force, thereby improving the plug-in force and avoiding the problem of not being able to lock the connector male head.

[0034] 2. The length of the tongue plate does not need to be shortened, and the head end of the tongue plate protrudes from the head end of the metal shell, so that the contact position of the terminal does not need to be changed, which can avoid the problem of mismatching with some connector male heads (such as non-standard connector male heads) due to the change of the contact position of the terminal, and improve the versatility of the product. Among them, the head end of the tongue plate can be inserted into the inside of the connector male head after protruding, and does not affect the overall length of the short body connector after being plugged into the connector male head.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A short body connector, comprising a metal shell (1), an insulating rubber core (2) and a plurality of terminals (3), wherein the insulating rubber core (2) comprises an insulating base (21) and a tongue plate (22), wherein the tongue plate (22) is vertically connected to the insulating base (21), wherein the metal shell (1) is fixedly connected to the insulating base (21) located at the rear of the metal shell (1), wherein the tongue plate (22) is located inside the metal shell (1), wherein the terminal (3) is installed in a terminal installation groove (23) provided on the tongue plate (22), wherein the welding foot portion of the terminal (3) passes through the rear of the insulating base (21) and then extends to the outside of the insulating base (21), wherein: The length between the tail of the insulating base (21) and the head of the metal shell (1) is 8 to 10 mm. Reverse spring sheets (11) that are bent inward and protrude are respectively provided on at least two opposite surfaces of the metal shell (1). One end of each reverse spring sheet (11) is connected to the metal shell (1) in a corresponding hole of the metal shell (1), and the other end of each reverse spring sheet (11) is a free end and faces the tail of the metal shell (1).

2. A short body connector according to claim 1, characterized in that: The terminal (3) comprises a terminal head (31), a terminal contact portion (32), a terminal base portion (33), a terminal solder leg connection portion (34) and a terminal solder leg portion (35) which are connected in sequence, the terminal contact portion (32) is bent in a V-shape and protrudes from the surface of the tongue plate (22), first stop teeth (36) are respectively provided on both sides of the terminal base portion (33), the terminal base portion (33) is perpendicular to the terminal solder leg connection portion (34), and second stop teeth (37) are respectively provided on both sides of the terminal solder leg connection portion (34).

3. A short body connector according to claim 1, characterized in that: Limit hooks (12) are respectively provided on both sides of the tail end of the metal shell (1), and limit grooves (24) are respectively provided on both sides of the tail end of the insulating base (21), and the limit hooks (12) are bent inwardly and placed in the limit grooves (24), so that the metal shell (1) and the insulating base (21) are fixedly connected.

4. A short body connector according to claim 1, characterized in that: Positioning pins (13) for inserting into holes of a circuit board are respectively provided on both sides of the tail end of the metal shell (1), and pin avoidance grooves (25) are respectively provided on both sides of the tail end of the insulating base (21).

5. A short body connector according to any one of claims 1 to 4, characterized in that: The head end of the tongue plate (22) protrudes from the head end of the metal shell (1), thereby extending to the outside of the head end of the metal shell (1).

6. A short body connector according to any one of claims 1 to 4, characterized in that: The head end of the tongue plate (22) is flush with the head end of the metal shell (1).

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