A straight plug

Abstract

The utility model discloses a straight-insert plug, which belongs to the technical field of electrical plugs, and comprises: a housing, a printed circuit board, a soldering contact structure and a sheet-type pin structure; the printed circuit board is arranged in the housing, the soldering contact structure is inserted into the printed circuit board perpendicular to the surface of the printed circuit board, and the soldering contact structure is electrically connected to the printed circuit board; the sheet-type pin structure is in contact with the soldering contact structure, the sheet-type pin structure is electrically connected to the printed circuit board, the sheet-type pin structure is connected to the housing, and the sheet-type pin structure extends out of the housing. The utility model provides a straight-insert plug that solves the problem of how to improve the simplicity and stability of the plug assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance plugs, in particular to a direct-insertion plug. Background Art

[0002] A plug is an electrical component used to connect an electrical appliance to a power source, and is usually made of metal and insulating materials. The metal part of a plug is usually a component that is inserted into a power socket and is used to transmit electrical energy for use with an electrical appliance or device. Generally, a conventional plug consists of the following main parts: a pin, also known as a pin post, and a shell structure. The pin is the conductive part of the plug, which is used to connect the plug to a power socket; the shell structure is the insulating part of the plug, which is used to isolate the conductive part from the part that comes into contact with human hands. The pin is usually made of conductive materials such as copper and copper alloys so that it can transmit electrical energy to the device; the shell is usually made of plastic material so that the pin can be insulated.

[0003] Based on this, Chinese patent CN109787016A discloses a riveting fixing structure of a plug, which includes a shell and a plug, the shell is provided with a socket, the socket includes a first socket and a second socket, the plug includes a connecting portion and a first pin and a second pin fixedly arranged at one end of the connecting portion, the first pin and the second pin are respectively inserted into the first socket and the second socket, and a fork is arranged at the end of the second pin, and the fork is clamped on the inner surface of the shell. The connection structure between the plug and the shell disclosed in the patent is firm, safe and has a long service life.

[0004] The above patent discloses a connection structure between a plug and a housing, and in the structure of the plug, the contact and the copper needle are also commonly used components for electrical plugs. How to reliably connect the contact and the copper needle is also a technical problem that needs to be solved urgently. Based on this, another Chinese patent CN218677612U also discloses a contact, which includes: a contact body and a copper needle, wherein one end of the copper needle penetrates the contact body, thereby being pressed by a hand beer machine for interference fit. The above-mentioned contact body includes a mounting portion and a contact portion, wherein one side edge of the mounting portion is connected to one side edge of the contact portion. The above-mentioned mounting portion and the contact portion are connected in an integrated molding manner, and one side edge of the mounting portion is folded at a preset angle and extended to a preset distance to form a contact portion; one end of the copper needle penetrates from one side surface of the mounting portion to the other side surface of the mounting portion and is interference fit. The contact disclosed in this patent uses a hand-stamping machine to punch out copper needles into the mounting part of the contact body, so that the copper needles can be connected to the circuit board, and the copper needles are connected to the mounting holes on the mounting part through interference fit, which can further improve the connection stability between the copper needles and the contact body and make the copper needles and the contact body have better conductivity.

[0005] However, the plug structure disclosed in the prior art still has technical problems of complex assembly process and unstable structural connection. Specifically, the contact-type plug structure disclosed above mainly connects the contact piece with the copper pin by riveting, and mainly forms a mechanical connection between the contact piece and the copper pin by pressure. Compared with connection methods such as welding, its connection strength is relatively low; when subjected to large external force or vibration, this connection may become loose or broken. In addition, during the riveting process, the contact area between the contact piece and the copper pin is limited, and there may be contact resistance, which will affect the conduction efficiency of the current. At the same time, if the riveting is improper, it may cause poor contact, further affecting the conductive performance of the plug. Moreover, the reliability of riveting will be affected by the manufacturing process and operating technology, and the consistency of the riveting process is poor. If there are errors or improper operations in the manufacturing process, it may cause loose or unstable connections, thereby affecting the normal operation of the entire electrical system. In addition, the contact piece and the copper pin in the prior art can also be connected by soldering; and when the solder contacts the surface of the metal workpiece, the heat will be quickly taken away, resulting in a complex and difficult soldering connection process between the metal parts; there is a hidden danger of instability. Utility Model Content

[0006] Based on this, it is necessary to provide a direct plug to address the technical problem of how to improve the simplicity and stability of the plug assembly process.

[0007] A straight plug, comprising: a shell, a printed circuit board, a soldering contact structure and a sheet pin structure; the printed circuit board is arranged in the shell, the soldering contact structure is inserted into the printed circuit board perpendicular to the surface of the printed circuit board, and the soldering contact structure is electrically connected to the printed circuit board; the sheet pin structure is in contact with the soldering contact structure, the sheet pin structure is electrically connected to the printed circuit board, the sheet pin structure is connected to the shell, and the sheet pin structure extends out of the shell.

[0008] Furthermore, the shell has a cavity, a limiting connection groove, a support plate and a fixed connection part.

[0009] Furthermore, the limiting connection groove is arranged in the cavity, and the limiting connection groove is connected to the printed circuit board; the supporting plate is arranged in the cavity, and the printed circuit board is connected to the supporting plate.

[0010] Furthermore, a plurality of the fixed connection parts are arranged on the support plate, a sheet-type pin structure is correspondingly arranged in each of the fixed connection parts, and a plug-in contact structure is correspondingly arranged above each of the fixed connection parts.

[0011] Furthermore, the plug-in contact structure has an insert pin, a connecting portion and an arc-shaped clamping spring.

[0012] Furthermore, the plug-in pins are inserted into the printed circuit board perpendicularly to the surface of the printed circuit board and connected to the printed circuit board, and the plug-in pins are connected to the printed circuit board by soldering.

[0013] Furthermore, the connecting portion is respectively connected to the plug-in pin and the arc-shaped clamping spring sheet, and the arc-shaped clamping spring sheet clamps and blocks one end of the sheet-type pin structure.

[0014] Furthermore, the sheet-type pin structure has a sheet-type main body structure, an undercut structure and a clamping insertion end.

[0015] Furthermore, the sheet-type main body structure extends out from the shell, and the undercut structure is arranged adjacent to the clamping insertion end at the end of the sheet-type main body structure.

[0016] Furthermore, the undercut structure and the clamping insertion end are both arranged in the cavity; the undercut structure is connected to the fixed connection part, and the clamping insertion end is abutted and connected to the arc-shaped clamping spring piece.

[0017] In summary, the utility model provides a straight-plug plug which is respectively provided with a shell, a printed circuit board, a soldering contact structure and a sheet-type pin structure; the printed circuit board is arranged in the shell, the soldering contact structure is inserted into the printed circuit board perpendicular to the surface of the printed circuit board, and the soldering contact structure is electrically connected to the printed circuit board; the sheet-type pin structure is in contact with and connected to the soldering contact structure, the sheet-type pin structure is electrically connected to the printed circuit board, the sheet-type pin structure is connected to the shell, and the sheet-type pin structure extends out of the shell. In order to increase the connection reliability between the sheet-type pin structure and the plug-in soldering contact structure, the sheet-type pin structure extends out from the shell structure after passing through the plug-in soldering contact structure, and the sheet-type pin structure is fixedly connected by relying on the internal structure of the shell structure; so that when the sheet-type pin structure is plugged in to the outside, its force is dispersed to the shell structure and the plug-in soldering contact structure to ensure the connection stability between the components, thereby improving the existing technical problems of poor reliability and poor stability that only rely on riveting between the contact and the copper pin. Moreover, the sheet-type pin structure has a larger contact surface area than conventional copper pins, so that when it is abutted and connected with the plug-in soldering contact structure, the contact connection between the two is simpler and the conductive stability after the connection is higher. Therefore, the utility model solves the problem of how to improve the simplicity and stability of the plug assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a straight-insertion plug of the utility model;

[0019] Figure 2 The utility model is an enlarged structural diagram of a local structure of a straight-insertion plug. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] Please also read Figure 1 to Figure 2 The utility model discloses a straight plug-in plug, comprising: a housing 1, a printed circuit board 2, a soldering contact structure 3 and a sheet-type pin structure 4; the printed circuit board 2 is arranged in the housing 1, the soldering contact structure 3 is inserted into the printed circuit board 2 perpendicular to the surface of the printed circuit board 2, and the soldering contact structure 3 is electrically connected to the printed circuit board 2; the sheet-type pin structure 4 is in contact with and connected to the soldering contact structure 3, the sheet-type pin structure 4 is electrically connected to the printed circuit board 2, the sheet-type pin structure 4 is connected to the housing 1, and the sheet-type pin structure 4 extends out of the housing 1.

[0027] Specifically, in the housing 1 provided in a plug-in plug of the utility model, a printed circuit board 2 is arranged along an inner wall surface parallel to the housing 1, and the printed circuit board 2 is smoothly connected to the inner wall of the housing 1. The plug-in contact structure 3 is a structure made of a conductive material in the form of a spring sheet, and a metal material is preferred, for example, it can be brass, phosphor bronze or stainless steel. More specifically, after the plug-in contact structure 3 is inserted and connected to the printed circuit board 2, the two are connected by soldering; thereby, the plug-in contact structure 3 and the printed circuit board 2 can be electrically connected. Two plug-in contact structures 3 can be provided on the side of the printed circuit board 2 at the same time, and each of the plug-in contact structures 3 is connected to a sheet pin structure 4; so that the sheet pin structure 4 can achieve electrical conduction between it and the printed circuit board 2 by abutting against the plug-in contact structure 3. More specifically, in order to increase the connection reliability between the sheet-type pin structure 4 and the plug-in soldered contact structure 3, the sheet-type pin structure 4 extends out from the shell structure 1 after passing through the plug-in soldered contact structure 3, and the sheet-type pin structure 4 is fixedly connected by relying on the internal structure of the shell structure 1; so that when the sheet-type pin structure 4 is plugged into the outside, the force is dispersed to the shell structure 1 and the plug-in soldered contact structure 3 to ensure the connection stability between the components, thereby improving the existing technical problems of poor reliability and stability caused by relying solely on riveting between the contact and the copper needle.

[0028] Furthermore, the sheet-type pin structure 4 has a larger contact surface area than a conventional copper pin, so that when it is abutted and connected with the plug-in contact sheet structure 3, the contact connection between the two is simpler and the conductive stability after the connection is higher.

[0029] Furthermore, the shell 1 has a cavity 101, a limiting connection groove 102, a support plate 103 and a fixed connection part 104; the limiting connection groove 102 is arranged in the cavity 101, and the limiting connection groove 102 is connected to the printed circuit board 2; the support plate 103 is arranged in the cavity 101, and the printed circuit board 2 is connected to the support plate 103; a plurality of fixed connection parts 104 are arranged on the support plate 103, and each of the fixed connection parts 104 has a corresponding sheet-type pin structure 4 inserted therein, and each of the fixed connection parts 104 has a corresponding plug-in contact structure 3 arranged above it. Specifically, the printed circuit board 2 can be stably limited in the cavity 101 by the limiting connection groove 102 and the support plate 103. Even if the external impact force is transmitted from the sheet-type pin structure 4 to the plug-in contact structure 3 and the printed circuit board 2, the shell 1 can be relied on for buffering to achieve the purpose of unloading the force, thereby improving the structural reliability and stability of the direct plug of the utility model.

[0030] Furthermore, the plug-in solder contact structure 3 has an insert pin 301, a connecting portion 302, and an arc-shaped clamping spring 303; the insert pin 301 is inserted and connected to the printed circuit board 2 perpendicular to the surface of the printed circuit board 2, and the insert pin 301 is connected to the printed circuit board 2 by soldering; the connecting portion 302 connects the insert pin 301 and the arc-shaped clamping spring 303 respectively, and the arc-shaped clamping spring 303 clamps and blocks one end of the sheet-type pin structure 4. Specifically, the arc-shaped clamping spring 303 is elastic and clamps one end of the sheet-type pin structure 4, and one end of the sheet-type pin structure 4 is inserted into the arc-shaped clamping spring 303 to block the end of the sheet-type pin structure 4, thereby preventing the sheet-type pin structure 4 from having poor contact and electrical non-conduction.

[0031] Furthermore, the sheet-type pin structure 4 has a sheet-type main structure 401, an undercut structure 402 and a clamping insertion end 403; the sheet-type main structure 401 extends out from the housing 1, the undercut structure 402 and the clamping insertion end 403 are arranged adjacent to each other at the end of the sheet-type main structure 401, and the undercut structure 402 and the clamping insertion end 403 are both arranged in the cavity 101; the undercut structure 402 is connected to the fixed connection portion 104, and the clamping insertion end 403 is abutted and connected with the arc-shaped clamping spring sheet 303. Specifically, the undercut structure 402 provides a stable connection force between the sheet-type main structure 401 and the housing 1, and the clamping insertion end 403 is abutted and connected with the arc-shaped clamping spring sheet 303, so as to realize electrical conduction between the sheet-type main structure 401 and the printed circuit board 2.

[0032] In summary, the utility model provides a straight-plug plug which is respectively provided with a shell 1, a printed circuit board 2, a soldering contact structure 3 and a sheet-type pin structure 4; the printed circuit board 2 is arranged in the shell 1, the soldering contact structure 3 is inserted into the printed circuit board 2 perpendicular to the surface of the printed circuit board 2, and the soldering contact structure 3 is electrically connected to the printed circuit board 2; the sheet-type pin structure 4 is in contact and connected with the soldering contact structure 3, the sheet-type pin structure 4 is electrically connected to the printed circuit board 2, the sheet-type pin structure 4 is connected to the shell 1, and the sheet-type pin structure 4 extends out from the shell 1. In order to increase the connection reliability between the sheet-type pin structure 4 and the plug-in soldering contact structure 3, the sheet-type pin structure 4 extends out from the shell structure 1 after passing through the plug-in soldering contact structure 3, and the sheet-type pin structure 4 is fixedly connected by relying on the internal structure of the shell structure 1; so that when the sheet-type pin structure 4 is plugged in to the outside, its force is dispersed to the shell structure 1 and the plug-in soldering contact structure 3 to ensure the connection stability between the components, thereby improving the existing technical problems of poor reliability and poor stability that only rely on riveting between the contact and the copper needle. Moreover, the sheet-type pin structure 4 has a larger contact surface area than conventional copper needles, so that when it is abutted and connected with the plug-in soldering contact structure 3, the contact connection between the two is simpler and the conductive stability after the connection is higher. Therefore, the utility model solves the problem of how to improve the simplicity and stability of the plug assembly process.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A plug-in type, characterized in that: It includes: A housing (1), a printed circuit board (2), a soldering contact sheet structure (3) and a sheet-type pin structure (4); the printed circuit board (2) is arranged in the housing (1), the soldering contact sheet structure (3) is inserted into the printed circuit board (2) perpendicular to the surface of the printed circuit board (2), and the soldering contact sheet structure (3) is electrically connected to the printed circuit board (2); the sheet-type pin structure (4) is in contact with the soldering contact sheet structure (3), the sheet-type pin structure (4) is electrically connected to the printed circuit board (2), the sheet-type pin structure (4) is connected to the housing (1), and the sheet-type pin structure (4) extends out of the housing (1).

2. A straight plug according to claim 1, characterized in that: The housing (1) comprises a cavity (101), a position-limiting connection groove (102), a support plate (103) and a fixed connection portion (104).

3. A straight-in plug according to claim 2, characterized in that: The limiting connection groove (102) is arranged in the cavity (101), and the limiting connection groove (102) is connected to the printed circuit board (2); the supporting plate (103) is arranged in the cavity (101), and the printed circuit board (2) is connected to the supporting plate (103).

4. A straight-in plug according to claim 3, characterized in that: A plurality of the fixed connection parts (104) are arranged on the support plate (103), a sheet-type pin structure (4) is correspondingly arranged in each of the fixed connection parts (104), and a plug-in contact structure (3) is correspondingly arranged above each of the fixed connection parts (104).

5. A straight-in plug according to claim 4, characterized in that: The plug-in soldering contact piece structure (3) comprises an inserting pin (301), a connecting portion (302) and an arc-shaped clamping spring piece (303).

6. A straight-in plug according to claim 5, characterized in that: The plug-in pin (301) is inserted into the printed circuit board (2) perpendicularly to the surface of the printed circuit board (2), and is connected to the printed circuit board (2). The plug-in pin (301) is connected to the printed circuit board (2) by soldering.

7. The direct plug according to claim 6, characterized in that: The connecting portion (302) respectively connects the plug-in pin (301) and the arc-shaped clamping spring sheet (303), and the arc-shaped clamping spring sheet (303) clamps and blocks one end of the sheet-type pin structure (4).

8. The direct plug according to claim 7, characterized in that: The sheet-type pin structure (4) comprises a sheet-type main body structure (401), an undercut structure (402) and a clamping insertion end (403).

9. The direct plug according to claim 8, characterized in that: The sheet-type main body structure (401) extends out from the shell (1), and the undercut structure (402) is arranged adjacent to the clamping insertion end (403) at the end of the sheet-type main body structure (401).

10. The direct plug according to claim 9, characterized in that: The undercut structure (402) and the clamping insertion end (403) are both arranged in the cavity (101); the undercut structure (402) is connected to the fixed connection part (104), and the clamping insertion end (403) is abutted and connected to the arc-shaped clamping spring sheet (303).

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