Electronic connector and fixing sheet for electronic connector

Abstract

The utility model discloses an electronic connector and a fixing sheet used for the electronic connector. The fixing sheet comprises a sheet-shaped main shaft, a sheet-shaped attaching part, at least one elastic arm and at least one limiting arm. The fitting part is vertically connected to the first end of the main shaft; the first end of the elastic arm is connected with the side face of the second end of the main shaft, and the second end of the elastic arm extends in the direction parallel to the axial direction of the main shaft. The first end of the limiting arm is connected with the side face of the first end of the main shaft, the second end of the limiting arm extends in the direction perpendicular to the axial direction of the main shaft, the limiting arm is located between the second end of the elastic arm and the attaching part in the axial direction of the main shaft, and the limiting arm and the elastic arm are arranged in a spaced mode. The assembly process can be simplified, and the problem that welding is not in place due to not-in-place assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic connectors, in particular to an electronic connector and a fixing sheet used for the electronic connector. Background Art

[0002] In electronic devices, various types of electronic connectors are usually used to connect the wiring harness to the board. They are arranged on the surface of the circuit board and electrically connected to the circuit board through terminals. During the connection process, in order to ensure the stability of the connection between the terminals of the electronic connector and the circuit board, a fixing plate is usually set on the electronic connector. By welding the fixing plate to the circuit board, it plays an auxiliary reinforcement role, thereby achieving the purpose of strengthening the connection strength between the electronic connector and the circuit board.

[0003] like Fig. 9 As shown, the existing fixing plate is an L-shaped three-dimensional sheet structure, and a slot is formed correspondingly on the electronic connector. The part of the fixing plate inserted in the slot is provided with a protruding structure on both sides, and the protruding structure abuts against the slot wall of the slot to produce hard interference, so that the fixing plate is inserted into the slot in an interference fit manner. A protruding limiting surface is also provided in the slot to limit the deepest position of the fixing plate insertion. When the fixing plate is inserted into the slot, its height outside the slot depends on the pressing depth of the fixing plate and the position of the limiting surface in the slot. In this case, since there is an interference fit between the fixing plate and the slot wall of the slot, the fixing plate is completely fixed after being inserted into the slot. At this time, the pressing depth of the fixing plate will directly affect the subsequent welding effect of the product.

[0004] When the pressing depth is at the ideal position, the soldering feet of the terminal and the exposed surface of the fixing plate are on the same horizontal plane, and can fit with the circuit board at the same time. When the pressing depth is too deep, the height of the fixing plate protruding from the slot is too high, which will lift the electronic connector, and then make the terminals on the electronic connector suspended in the air and unable to contact the circuit board, which is prone to cold welding and empty welding during the welding process. When the pressing depth is too shallow, the height of the fixing plate protruding from the slot is too low, so that when the terminal contacts the circuit board, the fixing plate is still in a suspended and uncontacted state, making it impossible for the fixing plate to be welded to the circuit board, and losing its application function. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an improved electronic connector and a fixing sheet used for the electronic connector.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A fixing piece for an electronic connector is constructed, comprising:

[0008] A sheet-shaped main shaft and a sheet-shaped fitting portion, wherein the fitting portion is vertically connected to the first end of the main shaft;

[0009] at least one elastic arm, a first end of the elastic arm being connected to a side surface of the second end of the main shaft, and a second end of the elastic arm extending in a direction parallel to the axial direction of the main shaft; and

[0010] At least one limiting arm, wherein the first end of the limiting arm is connected to the side surface of the first end of the main shaft, the second end of the limiting arm extends in a direction perpendicular to the axial direction of the main shaft, and is located between the second end of the elastic arm and the fitting portion in the axial direction of the main shaft, and is spaced apart from the elastic arm.

[0011] In some embodiments, the number of the elastic arms is two, which are respectively disposed on both sides of the main shaft;

[0012] And / or, there are two limit arms, which are respectively arranged on both sides of the main shaft.

[0013] In some embodiments, the elastic arm includes an elastic arm body and a limiting portion, wherein a first end of the elastic arm body is connected to the main shaft, and a second end is connected to the limiting portion, and the limiting portion is located between the first end of the elastic arm body and the fitting portion in the axial direction of the main shaft, and is spaced apart from the main shaft and the fitting portion;

[0014] The limiting portion protrudes toward a side of the elastic arm body away from the main axis.

[0015] In some embodiments, the elastic arm body is arranged in an L shape, with its short side connected to the main axis and its long side arranged parallel to and spaced from the main axis.

[0016] In some embodiments, the outer side surface of the connection surface between the limiting portion and the elastic arm body is provided with a chamfer.

[0017] In some embodiments, the limiting arm, the main shaft and the elastic arm are on the same plane.

[0018] An electronic connector is constructed, comprising a connector body and at least one fixing piece as described in any one of the above items, wherein the fixing piece is detachably arranged on the connector body.

[0019] In some embodiments, the connector body is formed with a connecting hole, and the main shaft and the at least one elastic arm are detachably inserted into the connecting hole;

[0020] The connector body further comprises at least one limiting boss, and the limiting boss is convexly disposed in the connecting hole;

[0021] The fixing plate has a working position in the connecting hole. When the fixing plate is in the working position, the elastic arm and the limiting arm are respectively located at two opposite sides of the limiting boss.

[0022] In some embodiments, the distance between the top end of the limiting arm and the bottom end of the elastic arm in the axial direction of the main shaft is 0.1 mm larger than the size of the limiting boss in the axial direction of the connecting hole.

[0023] In some embodiments, a chamfer is formed at the bottom end of the free end of the limiting boss.

[0024] The utility model has the following beneficial effects:

[0025] The present application provides an elastic arm and a limit arm on the fixing plate, so that during the process of assembling the fixing plate with the connector body, the fixing plate only needs to be pressed and inserted into the connecting hole to reach the working position; through the cooperation of the elastic arm and the limit arm, the fixing plate is positioned at the working position in the connecting hole, which simplifies the assembly process and does not require the operator to pay attention to the insertion depth at all times during assembly, thereby avoiding problems such as inadequate welding caused by assembly that is too shallow or too deep. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0027] Figure 1 It is a structural schematic diagram of an electronic connector according to an embodiment of the utility model;

[0028] Figure 2 yes Figure 1 AA cross-sectional structural diagram of the electronic connector shown;

[0029] Figure 3 yes Figure 1 A schematic diagram of the structure of the fixing plate in FIG.

[0030] Figure 4 yes Figure 1 A schematic diagram of the state when the limiting portion of the electronic connector is in contact with the limiting protrusion;

[0031] Figure 5 yes Figure 1 A schematic diagram of the state when the limiting arm of the electronic connector is in contact with the limiting protrusion;

[0032] Figure 6 yes Figure 1 A schematic diagram of the electronic connector in a pre-installed position;

[0033] Figure 7 yes Figure 1The schematic diagram of the state of the electronic connector shown in the deformation position;

[0034] Figure 8 yes Figure 1 The schematic diagram of the electronic connector in the working position shown;

[0035] Fig. 9 The present invention is a schematic diagram showing the state of a fixing piece of an existing electronic connector when it is inserted into a connecting hole. DETAILED DESCRIPTION

[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inside", "inside", "outside", etc. are based on the directions or positional relationships shown in some of the drawings, and are constructed and operated in a specific direction. They are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0037] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0038] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0039] The utility model constructs a fixing sheet 10 for an electronic connector and also constructs an electronic connector 1 having the fixing sheet 10. The electronic connector 1 and the fixing sheet 10 will be described together by taking one of the electronic connectors 1 having the fixing sheet 10 as an example.

[0040] It should be understood that the fixing sheet 10 can also be used on other electronic connectors.

[0041] Figures 1 to 3 The electronic connector 1 in one embodiment of the utility model is shown, which includes a connector body 20, a fixing plate 10 and a terminal 30. Among them, the number of terminals 30 is multiple, and they are respectively arranged on the connector body 20, and are used to be electrically connected to the circuit board. The fixing plate 10 is detachably arranged on the connector body 20, and is used to connect with the circuit board when the terminal 30 is electrically connected to the circuit board, so as to strengthen the stability of the connection between the circuit board and the terminal.

[0042] Specifically, a connection hole 21 is formed on the connector body 20, and the fixing sheet 10 is partially detachably inserted into the connection hole 21. The connector body 20 also includes at least one limiting boss 22, which is protrudingly disposed in the connection hole 21.

[0043] The fixing plate 10 includes a main shaft 11, a fitting portion 12, at least one elastic arm 13 and at least one limiting arm 14. The main shaft 11, the elastic arm 13 and the limiting arm 14 can be detachably arranged in the connecting hole 21. When the fixing plate 10 is arranged on the connector body 20, the elastic arm 13 and the limiting arm 14 are used to cooperate with each other and limit the limiting boss 22, thereby realizing the positioning of the fixing plate 10 in the connecting hole 21.

[0044] like Figure 3 As shown, the main shaft 11 and the fitting portion 12 are both arranged in a sheet shape and are perpendicular to each other, and the fitting portion 12 is vertically connected to the first end of the main shaft 11. When the main shaft 11 is located in the connecting hole 21, the fitting portion 12 can be arranged horizontally outside the connecting hole 21, and then when connected to the circuit board, it can be arranged to fit the board surface of the circuit board.

[0045] The elastic arm 13 is located at one side of the main shaft 11, with a first end connected to the side of the second end of the main shaft 11 (the end away from the fitting portion 12), and a second end extending in a direction parallel to the axial direction of the main shaft 11. When the fixing plate 10 is inserted into the connecting hole 21, the elastic arm 13 can pass through the limiting boss 22 by its own deformation, and rebound by its own deformation after reaching the working position, thereby realizing the limiting of the fixing plate 10 in the connecting hole 21 through the elastic arm 13.

[0046] The limiting arm 14 is connected to one side of the main shaft 11, with its first end connected to the side of the first section of the main shaft 11, and its second end extending in a direction perpendicular to the axial direction of the main shaft 11. In the axial direction of the main shaft 11, it is located between the second end of the elastic arm 13 and the fitting portion 12, and is spaced apart from the elastic arm 13. After the fixing plate 10 reaches the working position in the connecting hole 21, the limiting arm 14 can cooperate with the elastic arm 13 after rebounding, and is respectively located on both sides of the limiting boss 22, and is limited in both directions, thereby realizing the positioning of the fixing plate 10 in the connecting hole 21.

[0047] The fixing plate 10 of the present application can flexibly adjust the size (such as the overall width of the fixing plate 10, the spacing distance between the elastic arm 13 and the limiting arm 14, etc.). When assembled with the connector body 20, there is no need to achieve positioning in the connecting hole 21 by interference fit between the fixing plate 10 and the hole wall of the connecting hole 21. Assembly and positioning can be achieved by limiting the elastic arm 13 and the limiting arm 14, which simplifies the assembly process.

[0048] At the same time, the present application provides the elastic arm 13 and the limiting arm 14, and can realize the positioning of the fixing plate 10 in the connecting hole 12 through the cooperation of the two. During the assembly process, there is no need to pay attention to the pressing depth of the fixing plate 10 at any time during manual operation. It is only necessary to insert the fixing plate 10 into the connecting hole 21 and put it in the working position (elastic arm 13 rebounds), thereby avoiding the problem of improper welding of the fixing plate 10 or the terminal 30 caused by improper assembly.

[0049] It should be understood that the "axial direction" of the main axis 11 is the top-bottom direction, that is, Figure 3 The extension direction of the Z axis.

[0050] The “working position” refers to the position when the fixing plate 10 is partially in the connection hole 21, the second end of the elastic arm 13 and the limiting arm 14 are respectively located on both sides of the limiting boss 22, and the fitting portion 12 and the soldering feet of the terminal 30 are in the same horizontal plane. Figure 8 Position shown.

[0051] In some embodiments, the elastic arm 13 , the main shaft 11 , and the limiting arm 14 are located on the same plane, and are perpendicular to the plane where the fitting portion 12 is located.

[0052] Furthermore, the cross-sectional shape of the connection hole 21 is adapted to the elastic arm 13, the main shaft 11 and the limiting arm 14, which are in the shape of a sheet as a whole, and are arranged flat as a whole. When the elastic arm 13, the main shaft 11 and the limiting arm 14 are inserted into the connection hole 21, the thickness of the sheet structure formed by the three as a whole is adapted to the width of the cross-sectional shape of the connection hole 21. This ensures the stability of the fixing sheet 10 in the connection hole 21 and reduces or avoids the shaking in the connection hole 21.

[0053] In some other optional embodiments, the elastic arm 13 and / or the limiting arm 14 may not be in the same plane as the main shaft 11. The elastic arm 13 and the limiting arm 14 may be in the same plane separately, and this plane intersects or is perpendicular to the plane where the main shaft 11 is located. The elastic arm 13 and the limiting arm 14 may not be in the same plane, and the relative position setting of the two only needs to ensure that when they are in the working position in the connecting hole 21, they can be located on both sides of the limiting boss 22 at the same time to achieve the limiting.

[0054] In this embodiment, the number of the elastic arms 13 and the limiting arms 14 is two. The two elastic arms 13 are respectively located on the left and right sides of the main shaft 11 , and the two limiting arms 14 are also respectively located on the left and right sides of the main shaft 11 .

[0055] Furthermore, when there are two elastic arms 13 and limiting arms 14, respectively, and they are located on the left and right sides of the main shaft 11, the number of limiting bosses 22 can also be set to two, and their setting positions in the connecting hole 21 can correspond to the positions of the elastic arms 13 and the limiting arms 14 when they are in the working position, that is, they are protruded on the side walls where the two opposite short sides in the horizontal section of the connecting hole 21 are located.

[0056] In some other optional embodiments, the number of the elastic arms 13 and / or the limiting arms 14 may also be one, three, four or other plurality, and the number of the elastic arms 13 and the limiting arms 14 may be the same or different.

[0057] In some other optional embodiments, the two elastic arms 13 (two limiting arms 14) may also be located at the front and rear sides of the main shaft 11, or at two adjacent side ends of the main shaft 11. When there are multiple elastic arms 13 (limiting arms 14), they may also be distributed at intervals on the circumference of the main shaft 11.

[0058] When the two elastic arms 13 (two limiting arms 14 ) are disposed on the front and rear sides of the main shaft 11 , the limiting bosses 22 can be correspondingly disposed on the side walls where the two opposite long sides of the horizontal section of the connecting hole 21 are located.

[0059] When the elastic arms 13 (limiting arms 14) are distributed in the circumference of the main shaft 11, or the setting positions on the main shaft 11 do not correspond, the number of the limiting bosses 22 can be set to multiple or one. When multiple are set, they can be distributed along the circumference of the connecting hole 21. When one is set, it can be set as a ring boss protruding in the circumference of the connecting hole 21, etc.

[0060] It is important to understand that "left and right" refers to Figure 3 The two sides in the X-axis direction. The “front and back sides” refer to Figure 3 On both sides of the Y-axis direction.

[0061] In summary, “the second end of the elastic arm 13 is located between the first end and the fitting portion 12 in the axial direction of the main shaft 11” means that the position of the second end of the elastic arm 13 on the Z axis is between the position of the first end of the elastic arm 13 on the Z axis and the position of the fitting portion 12 on the Z axis. As for the positions of the second end of the elastic arm 13, the first end of the elastic arm 13 and the fitting portion 12 on the Z axis, their positions on the X axis and the Y axis respectively are not limited here, and the three can be at the same position on the X axis and the Y axis, or at different positions on the X axis and the Y axis.

[0062] In some other optional embodiments, the first end of the elastic arm 13 can also be connected to the middle position of the main shaft 11. The position setting of the elastic arm 13 on the main shaft 11 can be realized as long as the working position can be achieved and the position can be limited by the limit arm 14.

[0063] Specifically, the elastic arm 13 includes an elastic arm body 131 and a limiting portion 132. The first end of the elastic arm body 131 is the first end of the elastic arm 13, which is connected to the main shaft 11. The second end of the elastic arm body 131 is connected to the limiting portion 132, and the end of the limiting portion 132 away from the elastic arm body 131 is the second end of the elastic arm 13.

[0064] At this time, "the second end of the elastic arm 13 is located between the first end and the fitting portion 12 in the axial direction of the main shaft 11", that is, "the limiting portion 132 is located between the first end of the elastic arm body 131 and the fitting portion 12 in the axial direction of the main shaft 11". The limiting portion 132 is spaced apart from the main shaft 11 and the fitting portion 12.

[0065] At the same time, the limiting portion 132 protrudes toward the side of the elastic arm body 131 away from the main shaft 11 , and is used to limit the position on one side of the limiting boss 22 when the fixing plate 10 is in the working position.

[0066] In this embodiment, the elastic arm body 131 is roughly L-shaped, and the end of the short side of the L-shape is connected to the end of the main shaft 11 away from the fitting portion 12. The long side of the L-shape is arranged parallel to the axis of the main shaft 11. At this time, if the limiting portion 132 is not provided, only the elastic arm body 131 is provided, and it is impossible to limit the position with the limiting boss 22 at the working position.

[0067] In some other optional embodiments, the elastic arm body 131 can also be arranged in a longitudinal straight line, and is obliquely arranged on one side of the main shaft 11, with the first end connected to the main shaft 11, and the angle between its axis and the axis of the main shaft 11 is arranged at an acute angle. In this case, the convex limiting portion 132 may not be provided, and the limiting can be achieved only by the second end of the elastic arm body 131 arranged obliquely.

[0068] In some other optional embodiments, the elastic arm body 131 can also be set in other shapes such as irregular shape, arc shape, wave shape, etc.

[0069] like Figure 2 As shown, in some embodiments, the limiting boss 22 is generally in the form of a convex rectangular block. To facilitate the elastic arm 13 to pass through the limiting boss 22 during the insertion process, a chamfer is formed at the bottom of the free end thereof, so that the convex limiting portion 132 can pass smoothly through the limiting boss 22 during the insertion process.

[0070] It should be understood that the “free end” refers to the end of the limiting boss 22 away from the wall of the connecting hole 21 .

[0071] In this embodiment, the chamfer of the limiting boss 22 is an oblique angle.

[0072] In some other optional embodiments, the chamfer may also be a rounded corner, etc. Or the limiting boss 22 may be directly configured so that the free end thereof is in a semicircular, arc-shaped, triangular, etc. shape.

[0073] Further, see Figure 3 The outer side surface of the connection surface between the limiting portion 132 and the elastic arm body 131 is also provided with a chamfer to cooperate with the chamfer at the limiting boss 22 to further improve the smoothness of the elastic arm 13 during the insertion process and avoid jamming during the insertion process.

[0074] Specifically, in this embodiment, the limiting portion 132 is roughly in the shape of a right triangle, one of the right-angled sides of which is connected to the outer side surface of the second end of the elastic arm body 131, and the other right-angled side is used to limit the end surface of the limiting boss 22 when in the working position. The hypotenuse can be regarded as a chamfer, which differentiates the interaction force between the elastic arm 13 and the limiting boss 22 during the process of penetrating the connecting hole 21, so as to ensure that the elastic arm 13 can pass through smoothly and reach the working position.

[0075] In some other optional embodiments, the limiting portion 132 can also be set to other shapes such as semicircular, arc-shaped, irregular, etc., and the chamfered corners can be rounded or beveled.

[0076] It should be understood that the “outer surface of the connection surface between the limiting portion 132 and the elastic arm body 131” refers to the side end surface of the elastic arm 13 formed by the two that is away from the main shaft 11, that is, the side end surface that contacts the limiting boss 22 in the process of passing through the limiting boss 22.

[0077] In some embodiments, the limiting arm 14 is perpendicular to the axis of the main shaft 11, and is longitudinally arranged, and its upper end surface is parallel to the lower end surface of the limiting portion 132. When in the working position, the upper end surface of the limiting arm 14 and the lower end surface of the limiting portion 132 correspond to the bottom end and the top end of the limiting boss 22, respectively, and are limited on both sides.

[0078] Specifically, in this embodiment, the limiting arm 14 is substantially in the shape of a longitudinal rectangle, and a chamfer is provided at the connection between the upper end portion and the main shaft 11 .

[0079] In some other optional embodiments, the limiting arm 14 may not be arranged perpendicular to the axis of the main shaft 11. It may not be arranged linearly, but may be arranged in other shapes such as arc, irregular shape, etc. It should be understood that the setting of the shape of the limiting arm 14 only needs to ensure that it can achieve the limiting effect at the bottom end of the limiting boss 22 when it is in the working position.

[0080] Correspondingly, in this embodiment, the two limiting bosses 22 of the connector body 20 are both located near the bottom end of the connecting hole 21 , and a space is reserved on the bottom side thereof for accommodating the limiting arm 14 .

[0081] In some other optional embodiments, the limiting boss 22 can also be arranged at the bottom end of the connecting hole 21. That is, its lower end surface can be flush with the lower end surface of the connector body 20. At this time, when the fixing plate 10 is in the working position, the limiting arm 14 is located outside the connecting hole 21. At this time, the limiting arm 14 can be spaced apart from the fitting portion 12, or it can be connected to the fitting portion 12 to form a whole. As long as the bottom surface of the limiting arm 14 does not protrude from the bottom surface of the fitting portion 12. That is, it will not affect the fitting connection between the fitting portion 12 and the circuit board.

[0082] In some embodiments, the distance between the top end of the limiting arm 14 and the bottom end of the elastic arm 13 in the axial direction of the main shaft 11 is 0.1 mm greater than the height of the limiting boss 22. Figure 3 The distance in the Z-axis direction is shown to be 0.1 mm larger than the dimension of the limiting boss 22 in the axial direction of the connecting hole 21 .

[0083] By setting the size of 0.1 mm, the error in the production and assembly process of the electronic connector 1 can be avoided, and the assembly of the fixing plate 10 and the connector body 20 can be ensured, and the fitting part 12 and the terminal 30 can be ensured to fit the circuit board when the electronic connector 1 is connected to the circuit board. Figure 3The Z-axis direction shown has a flexibility of 0.1mm. Even if there is an error in the size of the fixing plate 10 and / or the connector body 20, it can be absorbed by the 0.1mm size. When the position of the limiting boss 22 is such that during the assembly process, after the fixing plate 10 reaches the working position, the fitting portion 12 and the terminal 30 cannot fit with the circuit board at the same time due to the error, the 0.1mm gap in the axial direction can make the fixing plate 10 move up and down in this direction, thereby achieving the simultaneous fitting of the fixing plate 10 and the terminal 30 with the circuit board to eliminate the error and avoid the phenomenon of empty soldering.

[0084] In some other optional embodiments, the size difference may also be 0.2, 0.15, 0.08 or other sizes. It should be understood that the size is different for electronic connectors 1 of different sizes. The size setting can ensure that the limiting arm 14 and the elastic arm 13 can achieve the limiting effect with the limiting boss 22, and can also achieve flexible height adjustment during actual use.

[0085] Furthermore, in some embodiments, the width of the fixing plate 10 is greater than the horizontal cross-sectional length of the connecting hole 21 at the position where the limiting boss 22 is located, and is less than or equal to the horizontal cross-sectional length of the connecting hole 21 at other positions except the limiting boss 22 .

[0086] Specifically, in this embodiment, the distance between the outermost sides of the two elastic arms 13 is less than the length of the horizontal cross section of the connection hole 21, and greater than the distance between the innermost sides of the two limiting bosses 22. The distance between the outermost sides of the two elastic arm bodies 131 is adapted to the distance between the innermost sides of the two limiting bosses 22. The distance between the outermost sides of the two limiting arms 14 is adapted to the length of the horizontal cross section of the connection hole 21, and is slightly greater than the distance between the outermost sides of the two elastic arms 13.

[0087] It should be understood that the “outermost side” refers to the side farthest from the axis of the spindle 11, that is, Figure 2 The "innermost side" refers to the side closest to the axis of the spindle 11, i.e. Figure 2 Inside shown.

[0088] The "farthest distance" of the elastic arm 13 (limiting arm 14) refers to the distance between the two elastic arms 13 (limiting arms 14) and the axis of the main shaft 11 at the farthest distance. Figure 2 The distance between the outermost ends of the two elastic arms 13 (limiting arms 14) in the angle shown.

[0089] The width of the fixing plate 10 is set so that the fixing plate 10 can be set more flexibly in the connection hole 21, and there will be no interference fit or friction with the connection hole 21 that hinders movement. When the electronic connector 1 is connected to the circuit board, the terminal 30 fits with the circuit board and the fitting portion 12 cannot fit with the circuit board. Since it has a flexible floating size of 0.1 mm and its width is smaller than the length of the cross section of the connection hole 21, it can move downward in the connection hole 21 under its own gravity, so that the fitting portion 12 automatically fits with the circuit board. No manual operation is required.

[0090] In some other optional embodiments, the distance between the outermost sides of the two elastic arm bodies 131 may be equal to the distance between the outermost sides of the two elastic arms 13, or slightly smaller than the distance between the outermost sides of the two elastic arms 13. The distance between the outermost sides of the two elastic arms 13 may also be matched to the length of the horizontal cross section of the connecting hole 21.

[0091] For example Figure 1 As shown, in some embodiments, the number of the fixing plates 10 of the electronic connector 1 is two, and the number of the connecting holes 21 of the connector body 20 is correspondingly two, and they are respectively located on both sides of the connector body 20. The two fixing plates 10 are respectively disposed in the two connecting holes 21.

[0092] The electronic connector 1 and the fixing plate 10 constructed in the present application will be further described below through a specific implementation of the present application:

[0093] like Figure 4 As shown, when the fixing plate 10 is in the working position and the bottom end of the limiting portion 132 abuts against the top end of the limiting boss 22, the distance between the top end of the limiting arm 14 and the bottom end of the limiting boss 22 is 0.1 mm ( Figure 4 The distance from the top of the connecting hole 21 to the bottom of the fixing plate 10 is 4.04 mm ( Figure 4 The length indicated by m in the symbol).

[0094] like Figure 5 As shown, when the fixing plate 10 is in the working position and the top end of the limiting arm 14 abuts against the bottom end of the limiting boss 22, the distance between the bottom end of the limiting portion 132 and the top end of the limiting boss 22 is 0.1 mm ( Figure 5 The distance from the top of the connecting hole 21 to the bottom of the fixing plate 10 is 3.94 mm ( Figure 5 The length indicated by the symbol p in the figure).

[0095] The electronic connector 1 and the fixing sheet 10 thereof will be further described below through several states of the fixing sheet 10 being inserted from outside the connection hole 21 to the working position inside the connection hole 21:

[0096] like Figure 6 As shown, when the fixing plate 10 begins to penetrate into the connection hole 21, it is in the pre-installed position. At this time, the elastic arm body 131 of the fixing plate 10 penetrates the connection hole 21 where the limiting boss 22 is located, and contacts the inner side end of the limiting boss 22. The limiting portion 132 and the limiting arm 14 are both located at the bottom end side of the limiting boss 22.

[0097] Furthermore, as the fixing plate 10 continues to be inserted upward, it is in a deformed position. Figure 7 As shown, at this time, the elastic arm 13 of the fixing plate 10 undergoes elastic deformation, and the limiting portion 132 is located at the connection hole 21 where the limiting boss 22 is located, and abuts against the inner side end of the limiting boss 22. The elastic arm body 131 and the limiting arm 14 are located at the top and bottom sides of the limiting boss 22 respectively.

[0098] Further, the fixing plate 10 continues to be inserted upwards and reaches the working position. Figure 8 As shown, at this time, the limiting portion 132 and the limiting arm 14 of the fixing plate 10 are respectively located at the top and bottom sides of the limiting boss 22 to achieve the positioning of the fixing plate 10 in the connecting hole 21.

[0099] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A fixing sheet for an electronic connector, characterized in that: include: A sheet-shaped main shaft (11) and a sheet-shaped fitting portion (12), wherein the fitting portion (12) is vertically connected to a first end of the main shaft (11); at least one elastic arm (13), a first end of the elastic arm (13) being connected to a side surface of a second end of the main shaft (11), and a second end of the elastic arm (13) extending in a direction parallel to the axial direction of the main shaft (11); and At least one limiting arm (14), wherein the first end of the limiting arm (14) is connected to the side surface of the first end of the main shaft (11), and the second end of the limiting arm (14) extends in a direction perpendicular to the axial direction of the main shaft (11), and is located between the second end of the elastic arm (13) and the fitting portion (12) in the axial direction of the main shaft (11), and is spaced apart from the elastic arm (13).

2. The fixing sheet for an electronic connector according to claim 1, characterized in that: The number of the elastic arms (13) is two, which are respectively arranged on both sides of the main shaft (11); And / or, the number of the limiting arms (14) is two, which are respectively arranged on both sides of the main shaft (11).

3. The fixing sheet for an electronic connector according to claim 1, characterized in that: The elastic arm (13) comprises an elastic arm body (131) and a limiting portion (132); the first end of the elastic arm body (131) is connected to the main shaft (11), and the second end is connected to the limiting portion (132); the limiting portion (132) is located between the first end of the elastic arm body (131) and the fitting portion (12) in the axial direction of the main shaft (11), and is spaced apart from the main shaft (11) and the fitting portion (12); The limiting portion (132) protrudes toward a side of the elastic arm body (131) away from the main shaft (11).

4. The fixing sheet for an electronic connector according to claim 3, characterized in that: The elastic arm body (131) is arranged in an L shape, with its short side connected to the main shaft (11) and its long side arranged parallel to and spaced from the main shaft (11).

5. The fixing sheet for an electronic connector according to claim 3, characterized in that: The outer side surface of the connection surface between the limiting portion (132) and the elastic arm body (131) is provided with a chamfer.

6. The fixing sheet for an electronic connector according to claim 1, characterized in that: The limiting arm (14), the main shaft (11) and the elastic arm (13) are located on the same plane.

7. An electronic connector, characterized in that: It comprises a connector body (20) and at least one fixing plate (10) according to any one of claims 1 to 6, wherein the fixing plate (10) is detachably arranged on the connector body (20).

8. The electronic connector according to claim 7, characterized in that: The connector body (20) is formed with a connecting hole (21), and the main shaft (11) and the at least one elastic arm (13) are detachably inserted into the connecting hole (21); The connector body (20) further comprises at least one limiting boss (22), wherein the limiting boss (22) is protrudingly disposed in the connecting hole (21); The fixing plate (10) has a working position in the connecting hole (21). When the fixing plate (10) is in the working position, the elastic arm (13) and the limiting arm (14) are respectively located at two opposite sides of the limiting boss (22).

9. The electronic connector according to claim 8, characterized in that: The distance between the top end of the limiting arm (14) and the bottom end of the elastic arm (13) in the axial direction of the main shaft (11) is 0.1 mm larger than the dimension of the limiting boss (22) in the axial direction of the connecting hole (21).

10. The electronic connector according to claim 8, characterized in that: The bottom end of the free end of the limiting boss (22) is formed with a chamfer.

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