Cylinder type stamping terminal

Abstract

The utility model discloses a cylinder type stamping terminal, which is used for being plugged with a matching terminal and comprises a terminal body and an anti-touch core rod, the terminal body is integrally formed by stamping and curling a plate, the anti-touch core rod is coaxially arranged in the terminal body, the terminal body comprises a plugging part, a fixing part and a wiring part which are connected in sequence, and the plugging part is connected with the fixing part. The anti-touch core rod comprises an anti-touch section and a supporting section which are coaxially connected with each other, the periphery of the supporting section is in contact connection with the inner wall of the fixing part, at least part of the anti-touch section is located in the inserting part, and a set distance is formed between the anti-touch section and the inner wall of the inserting part; the inner walls of the supporting section and the fixing part are provided with mutually-clamped clamping structures, and the outer wall of the fixing part is also integrally provided with a sealing structure protruding out of the periphery of the terminal body in an injection molding manner. According to the utility model, the anti-touch core rod is additionally arranged in the cylindrical stamping terminal, the supporting section of the anti-touch core rod can support the inner wall of the cylindrical stamping terminal, the overall strength of the terminal is enhanced, and the anti-touch section can play a role in preventing electric shock.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and more specifically, to a barrel-type stamping terminal. Background Art

[0002] With the rapid development of new energy electric vehicles, the use of terminals for electrical connection is increasing. The terminals used in charging guns and charging seats are mainly used to transmit electrical signals or conduct electricity. The terminals need to be plugged into the mating terminals to achieve electrical connection. When the mating terminals are not plugged in, the cavity of the plug-in part of the terminal has an opening, and the opening is not covered in a fully open state. It is easy for fingers to accidentally enter and cause the risk of electric shock. In addition, traditional terminals are formed by stamping and curling. After forming, due to the hollow structure, the terminals are prone to bumps, dents, deformation, and cannot be used during use, or deformation leads to the inability to plug into the mating terminals and the risk of electricity use.

[0003] Therefore, a new solution is urgently needed in the prior art to solve the above problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for barrel-type stamped terminals to solve the risk of electric shock caused by fingers accidentally entering the terminals when the terminals are not plugged in with the mating terminals, and the problem that the barrel-type stamped terminals formed by stamping and curling have thin walls and are hollow and easy to deform.

[0005] According to the utility model, a barrel-type stamping terminal is provided, which is used for plugging with a mating terminal, and comprises a terminal body and an anti-touch core rod, wherein the terminal body is integrally formed by stamping and curling a plate, and the anti-touch core rod is coaxially arranged in the terminal body.

[0006] The terminal body comprises a plug-in portion, a fixing portion and a wiring portion connected in sequence, the anti-touch core rod comprises a coaxially interconnected anti-touch segment and a supporting segment, the outer periphery of the supporting segment is in contact with the inner wall of the fixing portion, and the anti-touch segment is at least partially located in the plug-in portion and has a set distance from the inner wall of the plug-in portion;

[0007] The support section and the inner wall of the fixing portion are provided with mutually locking clamping structures, and the outer wall of the fixing portion is also integrally injection-molded with a sealing structure protruding from the periphery of the terminal body.

[0008] Optionally, an end of the contact protection segment extends out of the plug-in portion.

[0009] Optionally, the support segment is columnar, and the clamping structure is a first clamping portion provided on the inner wall of the fixing portion at both ends of the support segment, and the first clamping portion is clamped with both ends of the support segment to limit the axial displacement of the support segment in the terminal body.

[0010] Optionally, the clamping structure is a circumferential groove on the outer wall of the supporting section and a second clamping portion on the inner wall of the fixing portion, and the second clamping portion is clamped with the circumferential groove.

[0011] Optionally, the first clamping portion and the second clamping portion are a plurality of protrusions or spring sheets stamped on the inner wall of the fixing portion, and the plurality of protrusions or spring sheets are arranged at intervals along the circumferential direction of the inner wall of the fixing portion.

[0012] Optionally, the cross-sectional shape of the position where the sealing structure is arranged on the fixing part is arc-shaped and / or porous ring-shaped, and the sealing structure at least partially intrudes into the interior of the fixing part and seals part of the interior of the fixing part.

[0013] Optionally, it also includes an annular contact spring arranged inside the plug-in part, and the annular contact spring is a waist drum-shaped structure with thick ends and a thin middle. Corresponding to the positions of the two ends of the annular contact spring, a third clamping part is provided on the inner wall of the plug-in part to confine the annular contact spring inside the plug-in part.

[0014] Optionally, a plurality of elastic sheets are arranged at intervals in the circumferential direction of the annular contact spring, and the plurality of elastic sheets surround and form a contact cavity that wraps the mating terminal. The distance between the outer periphery of the annular contact spring and the inner wall of the plug-in part gradually decreases from the smallest diameter in the middle of the annular contact spring to both ends until they abut.

[0015] Optionally, a pressing piece protruding inwardly is provided at a position of the plug-in portion corresponding to the annular contact spring, one end of the pressing piece is connected to the plug-in portion, and the other end is a free end and abuts against the outer periphery of the elastic piece.

[0016] Optionally, there are multiple pressing plates, which are circumferentially spaced apart on the plug-in portion. In the axial direction of the terminal body, the pressing plates are arranged in two circles and are arranged on both sides of the middle of the annular contact spring, and the free ends of the two circles of pressing plates are arranged opposite to each other.

[0017] The beneficial effects of the utility model are:

[0018] Since the cylindrical stamped terminal is formed by stamping and curling in one piece, it has a cylindrical hollow structure after forming and is easily deformed by external force during use. The utility model adds an anti-touch core rod in the terminal body, and the anti-touch core rod includes an anti-touch section and a support section that are coaxially interconnected. The outer periphery of the support section is in contact with the inner wall of the fixed part, which plays a role in supporting the terminal body to strengthen the structural strength of the terminal body, and can also indirectly fix the anti-touch section in the terminal body. The anti-touch section is at least partially located in the plug-in part and has a set distance from the inner wall of the plug-in part. The anti-touch section can also prevent fingers from accidentally entering the terminal body from the outside of the plug-in part to cause electric shock hazards.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 It is a cross-sectional structural schematic diagram of a barrel-type stamping terminal of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a partially cutaway barrel-type stamping terminal of the utility model;

[0023] Figure 3 It is a structural schematic diagram of an anti-touch core rod of a barrel-type stamping terminal of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first clamping portion of the utility model being clamped with both ends of the supporting section;

[0025] Figure 5 It is an enlarged schematic diagram of a local structure in which the first clamping portion and the second clamping portion of the utility model are arranged at intervals along the circumferential direction of the inner wall of the fixing portion;

[0026] Figure 6 A schematic diagram of a structure in which the cross-sectional shape of the position where the sealing structure is arranged on the fixing part of the utility model is an arc;

[0027] Figure 7 A schematic diagram of a structure in which the cross-sectional shape of the location where the sealing structure is arranged on the fixing part of the utility model is a porous ring;

[0028] Figure 8 This is a schematic diagram of the structure of the free end of the pressing sheet of the utility model abutting against the outer periphery of the elastic sheet;

[0029] Fig. 9 A schematic diagram of the structure of the utility model in which two circles of pressing plates are arranged and arranged on both sides of the middle of the annular contact spring, and the free ends of the two circles of pressing plates are arranged opposite to each other;

[0030] Fig.10 It is a schematic diagram of the structure in which a plurality of pressing sheets are circumferentially spaced apart on the plug-in portion according to the utility model.

[0031] The following are marked in the figure:

[0032] 1. Terminal body; 11. Plug-in portion; 111. Third clamping portion; 112. Pressing piece; 12. Fixing portion; 121. First clamping portion; 122. Second clamping portion; 13. Wiring portion; 2. Anti-touch core rod; 21. Anti-touch section; 22. Support section; 221. Circumferential groove; 3. Sealing structure; 4. Annular contact spring. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] According to the first aspect of the present utility model, Figure 1-Figure 3 As shown, a barrel-type stamping terminal is provided for plugging with a mating terminal, comprising a terminal body 1 and an anti-touch core rod 2. The terminal body 1 is integrally formed by stamping and curling a plate, and the anti-touch core rod 2 is coaxially arranged in the terminal body 1.

[0038] The terminal body 1 comprises a plug-in portion 11, a fixing portion 12 and a wiring portion 13 connected in sequence, the anti-touch core rod 2 comprises a coaxially interconnected anti-touch segment 21 and a supporting segment 22, the outer periphery of the supporting segment 22 is in contact with the inner wall of the fixing portion 12, the anti-touch segment 21 is at least partially located in the plug-in portion 11 and has a set distance from the inner wall of the plug-in portion 11;

[0039] The support section 22 and the inner wall of the fixing portion 12 are provided with mutually locking structures, and the outer wall of the fixing portion 12 is also integrally injection-molded with a sealing structure 3 protruding from the outer periphery of the terminal body 1 .

[0040] With the rapid development of new energy electric vehicles, the use of terminals for electrical connection is increasing. The terminals used in charging guns and charging bases are mainly used to transmit electrical signals or conduct electricity. The terminals need to be plugged into mating terminals to achieve electrical connection. When not plugged into the mating terminals, the cavity of the plug-in portion 11 of the terminal has an opening, and the opening is not covered in a fully open state, so it is easy for fingers to accidentally enter and cause the risk of electric shock. In addition, traditional terminals are formed by stamping and curling. After forming, due to the hollow structure, the terminals are prone to bumps, dents, and deformation during use, making them unusable, or deformation makes it impossible to plug into the mating terminals and cause electrical risks.

[0041] Since the barrel-type stamping terminal is formed by stamping and curling in one piece, it is a barrel-type hollow structure after forming, which is easily deformed by external force during use. The utility model adds an anti-touch core rod 2 in the terminal body 1. The anti-touch core rod 2 includes a coaxially interconnected anti-touch section 21 and a support section 22. The outer periphery of the support section 22 is in contact with the inner wall of the fixing part 12, which can not only play a role in strengthening the terminal body 1 to prevent it from being deformed and unusable due to external force, but also play a role in indirectly fixing the anti-touch section 21 in the terminal body 1. The anti-touch section 21 is at least partially located in the plug-in part 11 and has a set distance from the inner wall of the plug-in part 11. The anti-touch section 21 can also prevent fingers from mistakenly entering the terminal body 1 from the outside of the plug-in part 11 to cause electric shock hazards. The sealing structure 3 can prevent water vapor and impurities in the use environment from entering the terminal body 1 and affecting the electrical connection between the plug-in part 11 and the mating terminal.

[0042] In some embodiments, Figure 1-Figure 2 As shown, the end of the contact protection segment 21 protrudes out of the plug-in portion 11 .

[0043] One end of the anti-touch section 21 is exposed outside the plug-in portion 11 , which is convenient for the operator to observe and serves as a reminder to prevent fingers from mistakenly entering the plug-in portion 11 of the terminal body 1 and causing the risk of electric shock.

[0044] In some embodiments, Figure 4 As shown, the support segment 22 is columnar, and the clamping structure is a first clamping portion 121 provided on the inner wall of the fixing portion 12 at both ends of the support segment 22, and the first clamping portion 121 is clamped with both ends of the support segment 22 to limit the axial displacement of the support segment 22 in the terminal body 1.

[0045] In some embodiments, Figure 1-Figure 3 As shown, the clamping structure is a circumferential groove 221 on the outer wall of the supporting section 22 and a second clamping portion 122 on the inner wall of the fixing portion 12 , and the second clamping portion 122 is clamped with the circumferential groove 221 .

[0046] The second clamping portion 122 is clamped with the circumferential groove 221 to fix the support section 22 on the inner wall of the terminal body 1 at the position corresponding to the fixing portion 12. The columnar support section 22 supports the inner wall of the terminal body 1 and strengthens the structural strength of the cylindrical stamped terminal.

[0047] In some embodiments, Figure 2 and Figure 5 As shown, the first clamping portion 121 and the second clamping portion 122 are a plurality of protrusions or spring pieces stamped on the inner wall of the fixing portion 12 , and the plurality of protrusions or spring pieces are arranged at intervals along the circumferential direction of the inner wall of the fixing portion 12 .

[0048] The protrusions or spring-type first clamping parts 121 arranged at intervals along the circumference of the inner wall of the fixing part 12 are clamped with the two ends of the support segment 22 to limit the axial displacement of the support segment 22 in the terminal body 1, and the support segment 22 is fixed on the inner wall of the terminal body 1 at the position corresponding to the fixing part 12. The support segment 22 supports the inner wall of the terminal body 1, strengthens the structural strength of the cylindrical stamping terminal, prevents the terminal body 1 from being deformed by external force and cannot be used, and can also indirectly fix the anti-touch segment 21 in the terminal body 1.

[0049] The protrusions or spring-type second clamping parts 122 arranged at circumferential intervals along the inner wall of the fixing part 12 are clamped with the circumferential grooves 221 on the outer wall of the support section 22, which can also limit the axial displacement of the support section 22 in the terminal body 1, and fix the support section 22 on the inner wall of the terminal body 1 at the position corresponding to the fixing part 12. The support section 22 supports the inner wall of the terminal body 1, strengthens the structural strength of the cylindrical stamping terminal, prevents the terminal body 1 from being deformed by external force and cannot be used, and can also indirectly fix the anti-touch section 21 in the terminal body 1 to prevent electric shock.

[0050] In some embodiments, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the cross-sectional shape of the position where the sealing structure 3 is arranged on the fixing portion 12 is arc-shaped and / or porous ring-shaped, and the sealing structure 3 at least partially penetrates into the fixing portion 12 and seals part of the fixing portion 12 .

[0051] The sealing structure 3 plays a sealing role, which can prevent moisture and impurities in the use environment from entering the terminal body 1 and affecting the plug-in electrical connection between the plug-in portion 11 and the mating terminal.

[0052] In some embodiments, Figure 2As shown, it also includes an annular contact spring 4 arranged inside the plug-in part 11. The annular contact spring 4 is a waist drum-shaped structure with thick ends and a thin middle. Corresponding to the positions of the two ends of the annular contact spring 4, a third clamping part 111 is provided on the inner wall of the plug-in part 11 to limit the annular contact spring 4 inside the plug-in part 11.

[0053] The third clamping portion 111 is clamped at two ends of the annular contact spring 4 to firmly fix the annular contact spring 4 in the plug-in portion 11 .

[0054] In some embodiments, Figure 2 As shown, the annular contact spring 4 is provided with a plurality of elastic sheets at intervals in the circumferential direction, and the plurality of elastic sheets surround and form a contact cavity that wraps the mating terminal. The distance between the outer periphery of the annular contact spring 4 and the inner wall of the plug-in portion 11 gradually decreases from the smallest diameter in the middle of the annular contact spring 4 to both ends until they abut.

[0055] This structural design is to make the outer periphery of the annular contact spring 4 abut against the inner wall of the plug-in portion 11 and electrically connect them, thereby playing a role in electrical transmission.

[0056] In some embodiments, Figure 8 As shown, the plug-in portion 11 is provided with an inwardly protruding pressing piece 112 at a position corresponding to the annular contact spring 4, one end of the pressing piece 112 is connected to the plug-in portion 11, and the other end is a free end and abuts against the outer periphery of the elastic sheet.

[0057] The pressing piece 112 abuts against the outer periphery of the elastic piece, which not only strengthens the electrical connection between the plug-in part 11 and the annular contact spring 4, but also strengthens the stable installation of the annular contact spring 4 in the plug-in part 11, ensuring a long-term stable electrical connection between the two.

[0058] In some embodiments, Figure 9-10 As shown, there are multiple pressing plates, which are circumferentially spaced apart on the plug-in portion 11. In the axial direction of the terminal body 1, the multiple pressing plates 112 are arranged in two circles and are arranged on both sides of the middle of the annular contact spring 4. The free ends of the two circles of pressing plates 112 are arranged opposite to each other.

[0059] This design is to increase the multi-point electrical connection between the annular contact spring 4 and the inner wall of the plug-in portion 11 of the barrel stamping terminal, and to strengthen the stable installation of the annular contact spring 4 in the plug-in portion 11, thereby ensuring the stability of electrical transmission.

[0060] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A barrel-type stamping terminal for plugging with a mating terminal, characterized in that: The terminal body comprises a terminal body and an anti-touch core rod, wherein the terminal body is integrally formed by stamping and curling a plate, and the anti-touch core rod is coaxially arranged in the terminal body. The terminal body comprises a plug-in portion, a fixing portion and a wiring portion connected in sequence, the anti-touch core rod comprises a coaxially interconnected anti-touch segment and a supporting segment, the outer periphery of the supporting segment is in contact with the inner wall of the fixing portion, and the anti-touch segment is at least partially located in the plug-in portion and has a set distance from the inner wall of the plug-in portion; The support section and the inner wall of the fixing portion are provided with mutually locking clamping structures, and the outer wall of the fixing portion is also integrally injection-molded with a sealing structure protruding from the periphery of the terminal body.

2. A barrel-type stamping terminal according to claim 1, characterized in that: An end portion of the contact protection segment protrudes out of the plug-in portion.

3. A barrel-type stamping terminal according to claim 1, characterized in that: The support section is columnar, and the clamping structure is a first clamping portion disposed on the inner wall of the fixing portion at both ends of the support section, and the first clamping portion is clamped with both ends of the support section to limit the axial displacement of the support section in the terminal body.

4. A barrel-type stamping terminal according to claim 1, characterized in that: The clamping structure is a circumferential groove on the outer wall of the supporting section and a second clamping portion on the inner wall of the fixing portion, and the second clamping portion is clamped with the groove.

5. The barrel-type stamping terminal according to claim 1, characterized in that: The cross-sectional shape of the position where the sealing structure is arranged on the fixing part is arc-shaped and / or porous ring-shaped, and the sealing structure at least partially penetrates into the interior of the fixing part and seals part of the interior of the fixing part.

6. The barrel-type stamping terminal according to claim 1, characterized in that: It also includes an annular contact spring arranged inside the plug-in part. The annular contact spring is a waist drum-shaped structure with thick ends and a thin middle. Corresponding to the positions of the two ends of the annular contact spring, a third clamping part is arranged on the inner wall of the plug-in part to limit the annular contact spring inside the plug-in part.

7. A barrel-type stamping terminal according to claim 6, characterized in that: The annular contact spring is provided with a plurality of spring sheets at intervals in the circumferential direction, and the plurality of spring sheets surround and form a contact cavity that wraps the mating terminal. The distance between the outer periphery of the annular contact spring and the inner wall of the plug-in portion gradually decreases from the smallest diameter in the middle of the annular contact spring to both ends until they abut.

8. The barrel-type stamping terminal according to claim 7, characterized in that: The plug-in portion is provided with an inwardly protruding pressing piece at a position corresponding to the annular contact spring. One end of the pressing piece is connected to the plug-in portion, and the other end is a free end and abuts against the outer periphery of the elastic piece.

9. The barrel-type stamping terminal according to claim 8, characterized in that: There are multiple pressing plates, which are circumferentially spaced apart on the plug-in portion. In the axial direction of the terminal body, the pressing plates are arranged in two circles and are arranged on both sides of the middle of the annular contact spring, and the free ends of the two circles of pressing plates are arranged opposite to each other.

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