Terminal, terminal connector, and substrate connector

Abstract

The terminal (1) is composed of a square wire and extends in the front-to-back direction. The terminal (1) comprises: a terminal body (2); a pair of first protrusions (3) protruding from the two side surfaces (2A) of the terminal body (2) to the left and right sides; and a pair of second protrusions (4) protruding from the two side surfaces (2A) of the terminal body (2) to the left and right sides, and arranged behind the pair of first protrusions (3). The pair of second protrusions (4) and the pair of first protrusions (3) are continuously formed into one body, and the maximum protruding dimension (X2max) of the second protrusion (4) from the side surface (2A) of the terminal body (2) is larger than the maximum protruding dimension (X1max) of the first protrusion (3) from the side surface (2A) of the terminal body (2).

Description

Technical Field

[0001] The present invention relates to a terminal, a terminal connecting body and a substrate connector. Background Art

[0002] In the past, as a terminal holding structure for holding a terminal pressed into a housing, for example, a terminal holding structure described in Japanese Patent Publication No. 2005-340068 (hereinafter referred to as Patent Document 1) is known. In this terminal holding structure, a terminal having a front locking protrusion and a rear locking protrusion provided at different positions along the pressing direction is used. When a plurality of locking protrusions are provided in this way, the holding force of the terminal can be increased.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2005-340068 Summary of the invention

[0006] Problems to be solved by the invention

[0007] When the terminal holding structure is used to miniaturize the terminal, it is considered to integrate the front locking projection and the rear locking projection. However, when the front locking projection and the rear locking projection are integrated in a continuous manner, the holding points of the integrated locking projection are halved, and the holding force of the terminal may be reduced.

[0008] The present disclosure has been made based on the above-mentioned circumstances, and an object of the present disclosure is to provide a terminal that can be miniaturized without reducing the terminal holding force.

[0009] Solutions to Solve Problems

[0010] The terminal disclosed in the present invention is composed of a square wire and extends in the front-to-back direction, and comprises: a terminal body; a pair of first protrusions, which are protrudingly arranged on the left and right sides from the two side surfaces of the terminal body; and a pair of second protrusions, which are protrudingly arranged on the left and right sides from the two side surfaces of the terminal body and are arranged behind the pair of first protrusions, the pair of second protrusions are continuously formed as a whole with the pair of first protrusions, and the maximum protruding dimension of the second protrusions from the side of the terminal body is larger than the maximum protruding dimension of the first protrusions from the side of the terminal body.

[0011] Effects of the Invention

[0012] According to the present disclosure, it is possible to provide a terminal that can be miniaturized without reducing the terminal holding force. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the terminal according to the embodiment.

[0014] Figure 2 It is an enlarged perspective view of a main part of the terminal according to the embodiment.

[0015] Figure 3 It is a side view of the terminal of the embodiment.

[0016] Figure 4 yes Figure 1 AA section view in.

[0017] Figure 5 yes Figure 1 BB section view in.

[0018] Figure 6 It is a perspective view of the terminal connection body of the embodiment.

[0019] Figure 7 It is a front view of the board connector according to the embodiment.

[0020] Figure 8 yes Figure 7 CC section view in.

[0021] Fig. 9 yes Figure 7 DD section view in. DETAILED DESCRIPTION

[0022] [Description of Embodiments of the Present Disclosure]

[0023] First, embodiments of the present disclosure will be described below.

[0024] (1) The terminal disclosed in the present invention is composed of a square wire and extends in the front-to-back direction, and comprises: a terminal body; a pair of first protrusions, which are protruding from both side surfaces of the terminal body to the left and right sides; and a pair of second protrusions, which are protruding from both side surfaces of the terminal body to the left and right sides and are arranged behind the pair of first protrusions, the pair of second protrusions are continuously formed into one body with the pair of first protrusions, and the maximum protrusion dimension of the second protrusion from the side surface of the terminal body is larger than the maximum protrusion dimension of the first protrusion from the side surface of the terminal body.

[0025] According to such a configuration, when the terminal is pressed into the housing and held inside the housing, the first protrusion and the second protrusion can be used to hold the terminal. In addition, since the first protrusion and the second protrusion are integrated, the miniaturization of the terminal becomes easy.

[0026] (2) Preferably, the first protrusion comprises: an upper first protrusion located on the upper surface side of the terminal body; and a lower first protrusion located on the lower surface side of the terminal body, and the second protrusion comprises: an upper second protrusion continuously formed as a whole with the upper first protrusion; and a lower second protrusion continuously formed as a whole with the lower first protrusion, the upper second protrusion and the lower second protrusion approach each other as they proceed toward the rear, and the protrusion dimension from the side of the terminal body increases toward the rear.

[0027] According to such a configuration, when the terminal is press-fitted into the housing, the synthetic resin scraped off from the inner wall of the housing fills between the upper second protrusion and the lower second protrusion, so that the terminal is more firmly held in the housing.

[0028] (3) The terminal connection body of the present disclosure includes: the above-mentioned terminal; and a terminal holder that holds a plurality of the above-mentioned terminals in parallel.

[0029] According to such a configuration, the handling and transportation of the terminals are facilitated.

[0030] (4) A board connector according to the present disclosure includes: the above-mentioned terminal; and a housing having a terminal holding wall that holds the terminal.

[0031] According to such a configuration, when the substrate connector is used, the terminal can be firmly held in the housing. In addition, the terminal can be miniaturized, so the substrate connector can be miniaturized or multi-polarized.

[0032] [Details of the embodiments of the present disclosure]

[0033] The following describes embodiments of the present disclosure. The present disclosure is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0034] <Implementation Method>

[0035] One side reference Figures 1 to 9 While explaining the embodiments of the present disclosure.

[0036] The substrate connector 30 of this embodiment includes a terminal 1 and a housing 10. Figures 7 to 9 As shown, the terminal 1 is press-fitted into a terminal holding hole 12 provided in a terminal holding wall 11 of a housing 10 , and is held by the inner wall of the terminal holding hole 12 .

[0037] The terminal 1 is formed by punching a metal square wire. Figure 1This is a top view of the terminal 1. The following description will be made with the right side of the figure as the front (the front direction of the press-in direction), the top of the figure as the left, and the outside of the paper as the top. Figure 1 As shown in FIG. 1 , the terminal 1 includes a terminal body 2, a first protrusion 3, a second protrusion 4, and a receiving portion 7 extending in the front-to-back direction. The second protrusion 4 is continuously arranged behind the first protrusion 3 in the press-in direction. The receiving portion 7 is separated from the second protrusion 4 in the press-in direction and arranged in the left-right direction ( Figure 1 Up and down directions in the diagram), up and down directions ( Figure 3 The front end of the terminal 1 in the press-in direction is formed as a substrate connection portion 5 connected to the circuit pattern (not shown) of the substrate, and the rear end of the terminal 1 in the press-in direction is formed as an electrical connection portion 6 connected to the other terminal (not shown) (see FIG. Figure 8 ).

[0038] Figure 4 The cross-sectional view of the terminal body 2 including the first protrusion 3 is shown when the terminal 1 is cut with a plane perpendicular to the front-back direction. The right side in the figure is regarded as the right side, the top side in the figure is regarded as the top side, and the back side of the paper is regarded as the front side. Figure 4 As shown, the first protrusion 3 is formed into a cross-sectional shape that protrudes in the left-right direction of the terminal 1 and is symmetrical in the vertical and left-right directions. The first protrusion 3 is divided into an upper first protrusion 3A and a lower first protrusion 3B, and the space sandwiched by the upper first protrusion 3A and the lower first protrusion 3B forms a recess 8. When the protruding dimension of the first protrusion 3 from the side 2A of the terminal body 2 is set to X1 and the thickness dimension in the vertical direction is set to Y1, X1 and Y1 become approximately constant values ​​with respect to the pressing direction (refer to Figure 1 and Figure 3 ). The maximum value of X1, i.e., the maximum protruding dimension X1max of the first protrusion 3 from the side surface 2A of the terminal body 2 is as follows: Figure 1 shown.

[0039] Figure 5 A cross-sectional view of the terminal body 2 including the second protrusion 4 is shown when the terminal body 2 is cut with a plane perpendicular to the front-to-back direction of the terminal 1. The following description will be made with the right side in the figure as the right side, the top side in the figure as the top side, and the back side of the paper as the front side. Figure 5 As shown, the second protrusion 4 is formed into a cross-sectional shape that protrudes in the left-right direction of the terminal 1 and is symmetrical in the vertical and left-right directions. The second protrusion 4 is divided into an upper second protrusion 4A and a lower second protrusion 4B, and the space sandwiched by the upper second protrusion 4A and the lower second protrusion 4B is formed into a concave portion 8 that is continuous from the first protrusion 3 side. When the protruding dimension of the second protrusion 4 from the side 2A of the terminal body 2 is set to X2 and the thickness dimension in the vertical direction is set to Y2, X2 increases as it moves toward the rear of the press-in direction (refer to Figure 1 ), Y2 decreases (refer to Figure 3 ). The maximum value of X2, i.e., the maximum protruding dimension X2max of the second protrusion 4 from the side surface 2A of the terminal body 2 is as follows: Figure 1 As shown. Figure 2 and Figure 3 As shown, at the rear end portion in the press-fitting direction of the second protrusion 4, the upper second protrusion 4A and the lower second protrusion 4B are integrated, and the recess 8 is closed. The space above the upper second protrusion 4A, which expands toward the rear in the press-fitting direction of the second protrusion 4, forms an upper recess 9A, and the space below the lower second protrusion 4B forms a lower recess 9B.

[0040] When comparing the shapes of the first protrusion 3 and the second protrusion 4, Y2 is smaller than Y1 (see Figure 3 ), the maximum value X2max of X2 is greater than the maximum value X1max of X1 (refer to Figure 1 ).

[0041] As a method for handling and transporting the terminal 1, Figure 6 As shown, a terminal connection body 20 is used in which a plurality of terminals 1 are held in parallel by a terminal holder 21. The terminal holder 21 has a strip-shaped support base 22 and a plurality of support pieces 23 extending from the support base 22, and the terminals 1 are clamped by the support pieces 23. The terminal 1 is assembled to the terminal holder 21 in such a manner that the region including the first protrusion 3 and the second protrusion 4 is arranged on the support base 22.

[0042] The housing 10 is made of synthetic resin, such as Figures 7 to 9 As shown in FIG. 1 , the terminal holding wall 11 is provided with a plurality of terminal holding holes 12. The inner shape of the terminal holding hole 12 is formed to be the same as or slightly larger than the outer shape of the square wire used for the terminal 1, and is formed so that when the terminal 1 is pressed in, the first protrusion 3 and the second protrusion 4 are pressed into the inner wall of the terminal holding hole 12 (see FIG. 1 ). Fig. 9 ).

[0043] When the terminal 1 is pressed into the housing 10, a press-in machine (not shown) abuts against the receiving portion 7 from the rear of the press-in direction, and the terminal 1 is inserted into the terminal holding hole 12 by the press-in machine. At this time, the first protrusion 3 and the second protrusion 4 scrape the inner wall of the terminal holding hole 12 while squeezing into the terminal holding wall 11 (see Figure 8 and Fig. 9). The terminal 1 is held in the vertical direction by the first protrusion 3 having a large thickness dimension in the vertical direction, and in the horizontal direction by the second protrusion 4 protruding greatly to the left and right, inside the housing 10. In addition, the synthetic resin scraped off from the inner wall of the terminal holding hole 12 is filled into the recess 8, thereby suppressing the shaking of the terminal 1 in the vertical, horizontal, and front-back directions, and the rotation around the pressing direction, and the terminal 1 is firmly held in the housing 10. The synthetic resin scraped off from the inner wall of the terminal holding hole 12 is also received in the upper recess 9A and the lower recess 9B, and sealed inside the housing 10.

[0044] [Effects of this embodiment]

[0045] According to this embodiment, the following actions and effects are achieved.

[0046] The terminal 1 of the present embodiment is composed of a square wire and extends in the front-to-back direction. The terminal 1 comprises: a terminal body 2; a pair of first protrusions 3, which are protruded from the two side surfaces 2A of the terminal body 2 to the left and right sides; and a pair of second protrusions 4, which are protruded from the two side surfaces 2A of the terminal body 2 to the left and right sides, and are arranged behind the pair of first protrusions 3. The pair of second protrusions 4 are continuously formed as a whole with the pair of first protrusions 3, and the maximum protrusion dimension X2max of the second protrusion 4 from the side surface 2A of the terminal body 2 is larger than the maximum protrusion dimension X1max of the first protrusion 3 from the side surface 2A of the terminal body 2.

[0047] According to the above configuration, when the terminal 1 is pressed into the housing 10 and held inside the housing 10, the terminal 1 can be held by the first protrusion 3 and the second protrusion 4. In addition, since the first protrusion 3 and the second protrusion 4 are integrated, the terminal 1 can be easily miniaturized.

[0048] In this embodiment, the first protrusion 3 includes: an upper first protrusion 3A located on the upper surface side of the terminal body 2; and a lower first protrusion 3B located on the lower surface side of the terminal body 2, and the second protrusion 4 includes: an upper second protrusion 4A continuously formed as one with the upper first protrusion 3A; and a lower second protrusion 4B continuously formed as one with the lower first protrusion 3B, the upper second protrusion 4A and the lower second protrusion 4B approach each other as they move toward the rear, and the protruding dimension X2 measured from the side surface 2A of the terminal body 2 increases toward the rear.

[0049] According to the above configuration, when the terminal 1 is press-fitted into the housing 10 , the synthetic resin scraped off from the inner wall of the housing 10 fills between the upper second protrusion 4A and the lower second protrusion 4B, so that the terminal 1 is more firmly held in the housing 10 .

[0050] The terminal coupling body 20 of the present embodiment includes: the terminal 1; and a terminal holding frame 21 for holding a plurality of terminals 1 in parallel.

[0051] According to the above-mentioned structure, the handling and transportation of the terminal 1 are facilitated.

[0052] The board connector 30 of the present embodiment includes: a terminal 1 ; and a housing 10 having a terminal holding wall 11 for holding the terminal 1 .

[0053] According to the above configuration, when the board connector 30 is used, the terminal 1 can be firmly held in the housing 10. In addition, since the terminal 1 can be miniaturized, the board connector 30 can be miniaturized or multi-polarized.

[0054] <Other Implementation Methods>

[0055] (1) In the embodiment, the substrate connection portion 5 is provided at the front end portion in the press-fitting direction, and the electrical connection portion 6 is provided at the rear end portion in the press-fitting direction. However, the present invention is not limited thereto, and these may be arranged oppositely.

[0056] (2) In the embodiment, the terminal 1 is configured to be assembled on the terminal holder 21 in a manner such that the area including the first protrusion 3 and the second protrusion 4 is arranged on the support base 22, but is not limited to this. For example, the terminal holder can also be arranged in front of or behind the area including the first protrusion and the second protrusion.

[0057] Description of Reference Numerals

[0058] 1: terminal

[0059] 2: Terminal body

[0060] 2A: Side

[0061] 3: The first protrusion

[0062] 3A: Upper first protrusion

[0063] 3B: Lower first protrusion

[0064] 4: Second protrusion

[0065] 4A: Upper second protrusion

[0066] 4B: Lower second protrusion

[0067] 5: Substrate connection

[0068] 6: Electrical connection

[0069] 7: Bearing part

[0070] 8: Concave

[0071] 9A: Upper concave part

[0072] 9B: Lower concave part

[0073] 10: Shell

[0074] 11: Terminal retaining wall

[0075] 12: Terminal holding hole

[0076] 20: Terminal connector

[0077] 21: Terminal retainer

[0078] 22: Supporting pedestal

[0079] 23: Support sheet

[0080] 30: Connector for substrate

[0081] X1: The protrusion dimension of the first protrusion from the side surface of the terminal body

[0082] X1max: Maximum protrusion dimension of the first protrusion from the side of the terminal body

[0083] X2: The protruding dimension of the second protrusion from the side of the terminal body

[0084] X2max: The maximum protrusion dimension of the second protrusion from the side of the terminal body

[0085] Y1: Thickness of the first protrusion in the vertical direction

[0086] Y2: The thickness dimension of the second protrusion in the vertical direction

Claims

1. A terminal, which is composed of a square wire and extends in the front-to-back direction, and has: Terminal body; a pair of first protrusions, the pair of first protrusions being provided to protrude from both side surfaces of the terminal body to the left and right sides; and a pair of second protrusions, the pair of second protrusions being provided to protrude from both side surfaces of the terminal body to the left and right sides and being arranged behind the pair of first protrusions, The pair of second protrusions and the pair of first protrusions are continuously formed as one body, The maximum protrusion dimension of the second protrusion from the side surface of the terminal body is larger than the maximum protrusion dimension of the first protrusion from the side surface of the terminal body. The first protrusion includes: an upper first protrusion located on the upper surface side of the terminal body; and a lower first protrusion located on the lower surface side of the terminal body. The second protrusion includes: an upper second protrusion formed integrally and continuously with the upper first protrusion; and a lower second protrusion formed integrally and continuously with the lower first protrusion. The upper second protrusion and the lower second protrusion approach each other as they go toward the rear, and a protrusion dimension from the side surface of the terminal body increases toward the rear.

2. A terminal connector, comprising: The terminal according to claim 1; and A terminal holder holds the plurality of terminals in parallel.

3. A substrate connector, comprising: The terminal according to claim 1; and The housing has a terminal holding wall for holding the terminal.

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