Metal reed structure and terminal assembly

Abstract

The utility model discloses a metal reed structure and a terminal assembly, which not only greatly reduce the plugging force, but also effectively improve the current-carrying capability. The metal reed structure comprises a first fixing ring; the second fixing ring and the first positioning ring are coaxially arranged; the multiple grid bars are connected between the first fixing ring and the second fixing ring in a non-cross mode; and the wire spring wires are wound on the grid bars in a picking and pressing weaving mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a metal spring sheet structure and a terminal assembly. Background Art

[0002] Electrical connectors are indispensable components of electronic equipment. Electrical connectors are mainly composed of plugs and sockets. The plug is provided with a jack / pin, and the socket is provided with a pin / jack. The plug and the socket are connected through the jack and the pin. In modern industrial electrical systems, as the use of electrical connectors becomes wider and wider, the current carrying capacity of the connector is required to be higher and higher. Under the same current carrying condition, the volume of the jack body needs to be smaller and smaller, or the current carrying capacity needs to be improved under the same volume condition, so as to meet the use requirements of the connector.

[0003] Most existing point connectors are reed-type and slot-type jack structures. The reed is provided with a contact point for contacting the pin, and the slot-type jack body is also provided with a point for contacting the pin. After the pin is inserted into the jack, a current transmission path between the jack and the pin is formed. For example, "A metal reed structure, terminal structure and electrical connector" disclosed in application number CN201810088681.X and "A contact reed and electrical connector" disclosed in application number CN202410077556.4.

[0004] However, when using the above-mentioned existing reed-type and split-slot jack structures, there are the following problems:

[0005] 1. The current carrying capacity needs to be further improved;

[0006] 2. The plugging and unplugging force is large, resulting in a poor operator experience, and it is easy to yield after multiple plugging and unplugging, and the performance is also unstable. Utility Model Content

[0007] In order to solve the problem that the existing connector has a large plugging and unplugging force and a weak current carrying capacity, the utility model provides a metal spring structure and a terminal assembly, which not only greatly reduces the plugging and unplugging force, but also effectively improves the current carrying capacity.

[0008] The purpose of the utility model is achieved through the following technical solutions:

[0009] The first aspect of the utility model provides a metal spring structure, comprising:

[0010] A first fixing ring;

[0011] a second fixing ring, the second fixing ring being coaxially arranged with the first fixing ring;

[0012] A plurality of bars, each of which is connected between the first fixing ring and the second fixing ring without crossing each other;

[0013] The spring wire is wound on the grid bar in a picking and pressing weaving manner.

[0014] A second aspect of the utility model provides a terminal assembly, comprising:

[0015] A reed, wherein the reed is a metal reed structure as described in the first aspect;

[0016] A socket body, wherein one end of the socket body is provided with a socket for accommodating the reed, and a step structure abutting against one end of the reed is provided in the socket;

[0017] A fixing sleeve is used to be arranged at the end of the socket of the socket body to abut against the other end of the reed.

[0018] Compared with the prior art, the utility model has at least the following advantages and beneficial effects:

[0019] 1. The utility model increases the contact point surface with the pins and the sockets by winding the spring wire on the grid bars, and further improves the current carrying capacity under the condition of the same volume.

[0020] 2. The utility model winds the wire spring on the grid bar, and there is a gap between the wire spring and the grid bar, which makes a smooth transition and leaves enough deformation space. When the pin is plugged in, the wire spring on both sides of the grid bar shrinks inward and expands outward respectively. During the shrinking and expanding process, the force will be evenly distributed at all contact points, further reducing the insertion and extraction force of the pin, making the insertion and extraction gentle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 only 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.

[0022] Figure 1 It is a cross-sectional view of the metal reed structure of the utility model;

[0023] Figure 2 is a schematic diagram of the structure of the first fixing ring and the grid bars;

[0024] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0025] Figure 4 It is a three-dimensional diagram of the metal reed structure;

[0026] Figure 5This is an explosion photo of the terminal assembly;

[0027] Figure 6 It is a schematic diagram of the structure when the terminal assembly is plugged into the pin. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The utility model discloses a metal spring structure and a terminal assembly, referring to Figure 5 , 6 As shown, the terminal assembly is a plug or a socket. The terminal structure includes a socket body 5, a fixing sleeve 6 and the metal spring structure.

[0035] Among them, one end of the socket body 5 is provided with a socket 51 for accommodating the reed, and the socket (51) is provided with a step structure 52 abutting against one end of the reed; the fixing sleeve 6 is used to be arranged at the end of the socket 51 of the socket body 5 to abut against the other end of the reed.

[0036] Reference Figures 1 to 4 The metal spring sheet structure includes a first fixing ring 1, a second fixing ring 2, a grid bar 3 and a spring wire 4. The second fixing ring 2 is coaxially arranged with the first fixing ring 1; the grid bars 3 are multiple and are connected between the first fixing ring 1 and the second fixing ring 2 without cross-connection; the spring wire 4 is wound on the grid bar 3 in a pick-and-press braiding manner.

[0037] The bars can be arranged axially along the first fixing ring 1 and the second fixing ring 2, such as Figure 1 , 2 As shown, it can also be set obliquely.

[0038] The bars can be arranged at equal intervals or at unequal intervals, where the equal interval refers to the shortest distance between two adjacent bars.

[0039] By adopting this method, the contact point surface with the pins and sockets can be increased, and the current carrying capacity can be further improved under the condition of the same volume.

[0040] With the above-mentioned metal leaf spring structure, since the wire spring wire 4 is wound on the grid bar 3 in a woven manner, there is a gap between the wire spring wire 4 and the grid bar, with a smooth transition and sufficient deformation space. When the pin 7 is plugged in, the wire spring wire on the side where the grid bar 3 fits the inner wall of the socket 51 will shrink inward, that is, the outer diameter of the metal leaf spring structure shrinks inward; the wire spring wire on the side where the grid bar 3 is close to the axis will expand outward, that is, the inner diameter of the metal leaf spring structure shrinks inward. In the process of shrinkage and expansion, the force will be evenly distributed at all contact points, further reducing the insertion and removal force of the pin, and making the insertion and removal gentle.

[0041] There are many ways to wind the spring wire 4 on the grid bar, for example, Figure 4 The one-pick-one-press weaving method shown can also be a two-pick-two-press, staggered two-pick-two-press, three-pick-three-press, staggered three-pick-three-press, one-pick-three-press, staggered one-pick-one-press and other weaving methods.

[0042] In order to improve the current carrying capacity, it is preferred to use Figure 4 The one-pick-one-press braiding method shown in the figure. By adopting this method, the contact point surface with the pin and the socket is further improved, and the current carrying capacity is further improved.

[0043] In order to improve the stability of the wire spring 4, the wire spring 4 is welded to the grid bar 3. There are many ways to weld the two, such as randomly selecting points at the contact point for multi-point welding.

[0044] Under the premise of ensuring the structural stability of the wire spring, in order to reduce the insertion and extraction force, make the insertion and extraction gentle, and avoid the deformation and yielding of the wire spring after multiple insertion and extraction, the head and tail of the wire spring 4 are respectively welded to the grid bar 3. The wire spring 4 is only welded to the grid bar at the head and tail, which ensures that the wire spring will be stressed when the pin is inserted, and there is a movable amount in the middle that the wire spring 4 can be deformed, thereby improving the performance stability of the wire spring 4.

[0045] On the basis of any of the above structures, in order to avoid the influence of the end of the wire spring wire 4 on the pin during insertion, as Figure 3 As shown, the head and tail of the wire spring 4 are respectively welded to the side of the grid bar 3. It should be noted that the side here refers to the side where two adjacent grid bars are close to each other.

[0046] On the basis of any of the above structures, in order to further improve the stability of the metal spring structure, the first fixing ring 1 has a U-shaped cross section and is integrally formed with the grid bar 3. The end of the first fixing ring 1 abuts against the step structure 52, and the U-shaped cross section of the first fixing ring 1 increases the contact surface and improves the structural stability.

[0047] In order to improve the structural stability of the connection between the second fixing ring 2 and the grid bars 3 , the cross section of the second fixing ring 2 is U-shaped.

[0048] The first fixing ring 1 is integrally formed with the grid bar 3, and the second fixing ring 2 and the grid bar 3 can be connected by spot riveting technology. The second fixing ring 2 can increase the contact surface with the fixing sleeve 6 while fixing the grid bar, thereby improving the structural stability.

[0049] During assembly, the fixing sleeve 6 is interference-fitted with the socket body 5. In order to improve the assembly stability of the fixing sleeve 6, a circle of grooves 53 are circumferentially arranged on the outer wall of the socket body 5. The fixing sleeve 6 includes an abutting portion 61 placed in the socket 51 and abutting against the spring sheet, a connecting portion 62 covering the outer wall of the socket body 5, and a limiting portion 63 arranged on the connecting portion 62 and used to be clamped in the groove 53.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal reed structure, characterized in that: include: A first fixing ring (1); a second fixing ring (2), the second fixing ring (2) being coaxially arranged with the first fixing ring (1); A grid bar (3), wherein the grid bars (3) are multiple and are connected between the first fixing ring (1) and the second fixing ring (2) without crossing each other; A wire spring wire (4), wherein the wire spring wire (4) is wound on the grid bar (3) in a picking and pressing braiding manner.

2. A metal reed structure according to claim 1, characterized in that: The wire spring wire (4) is wound on the grid bar (3) in a one-pick-and-press braiding manner.

3. A metal leaf spring structure according to claim 1, characterized in that: The ends of the spring wire (4) are respectively welded to the grid bars (3).

4. A metal leaf spring structure according to claim 1, characterized in that: The ends of the spring wire (4) are respectively welded to the side surfaces of the grid bar (3).

5. The metal reed structure according to claim 1, characterized in that: The second fixing ring (2) has a U-shaped cross section.

6. The metal leaf spring structure according to claim 1, characterized in that: The first fixing ring (1) has a U-shaped cross section and is integrally formed with the grid bars (3).

7. A terminal assembly, characterized in that: include: A reed, wherein the reed is a metal reed structure as claimed in any one of claims 1 to 6; A socket body (5), wherein one end of the socket body (5) is provided with a socket (51) for accommodating the reed, and a step structure (52) abutting against one end of the reed is provided in the socket (51); A fixing sleeve (6) is used to be arranged at the end of the socket (51) of the socket body (5) to abut against the other end of the reed.

8. A terminal assembly according to claim 7, characterized in that: The fixing sleeve (6) and the socket body (5) are interference fit.

9. A terminal assembly according to claim 7, characterized in that: The outer wall of the socket body (5) is provided with a circle of grooves (53) in the circumferential direction, and the fixing sleeve (6) comprises an abutting portion (61) disposed in the socket (51) and abutting against the spring sheet, a connecting portion (62) covering the outer wall of the socket body (5), and a limiting portion (63) disposed on the connecting portion (62) and used to be clamped in the groove (53).

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