JP2013041768A - Terminal connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal connection structure in which a terminal board and a tab terminal are brought into an electrically connected state by speedily fixing them with a simple operation, and a load is not easily applied to the tab terminal.SOLUTION: In this terminal connection structure having the terminal board 20 that can be connected to the tab terminal 10 and a fixing member 30 for holding the electrically connected state of the tab terminal 10 and the terminal board 20, a pressing part 31 formed on the side of one end region 30a of the fixing member 30 is disposed so as to protrude from the surface 20a of the terminal board 20, and is also disposed so that the other region 30b of the fixing member 30 becomes slidable along the back side 20b of the terminal board 20, the fixing member 30 is slidably moved in a direction opposite to the direction in which the tab terminal 10 enters the terminal board 20, the tab terminal 10 and the terminal board 20 are thereby held between the side of one end region 30a and the side of the other region 30b, and the tab terminal 10 superposed on the terminal board 20 is pressed by a pressing member 31 on the side of the terminal board 20.

Description

  The present invention relates to a terminal connection structure that reliably holds an electrical connection state between a terminal plate and a tab terminal using a fixing member.

  In a solar cell panel, a terminal connection structure using a fixing member (pressing member) is known in order to securely hold an electrical connection state between a terminal plate and a tab terminal (for example, a flat wire).

For example, Patent Document 1 discloses a terminal connection structure including a terminal plate having a hole through which a flat wire passes, and a fixing member that holds an electrical contact state between the flat wire and the terminal plate. The fixing member has a base portion facing the end face of the end portion of the terminal plate, and a clamping pair extending from the base portion for clamping the thickness direction portion of the terminal plate.
When the fixing member is slid, the rectangular wire is tilted in the sliding direction by covering the flat wire passed through the other side of the hole in the terminal board, and collapsed by the clamping force of the clamping pair. Is firmly fixed to the terminal board.

  Further, in Patent Document 2, the pressing member (fixing member) has a holding portion that can hold the end portion of the terminal plate, and the holding member holds the end portion of the terminal plate by holding the end portion of the terminal plate. A terminal connection structure in which a pressing force is generated is disclosed.

Japanese Patent No. 4666306 International Publication No. 2009/081508 Pamphlet

  In the terminal connection structure of Patent Document 1, since the tab terminal and the terminal plate are electrically contacted by sliding the fixing member and bending the rectangular wire (tab terminal) at a right angle, a large load is applied to the tab terminal, The tab terminal may be damaged.

  In the terminal connection structure of Patent Document 2, it is necessary and complicated to pick up the fixing member, insert a tab terminal therebetween, and return the picked-up fixing member to the original position. Further, when pressing the tab terminal with the fixing member, it is necessary to pay attention so as not to damage the tab terminal. If the tab terminal is suddenly pressed with the fixing member, the tab terminal may be damaged.

  Accordingly, an object of the present invention is to provide a terminal connection structure in which a terminal plate and a tab terminal are quickly fixed by an easy operation so as to be in an electrically connected state and a load is not easily applied to the tab terminal.

  In order to achieve the above object, the first characteristic configuration of the terminal connection structure according to the present invention includes a terminal plate to which a tab terminal can be connected, and a fixing member that holds an electrical contact state between the tab terminal and the terminal plate. And a pressing portion formed on one end region side of the fixing member is arranged so as to protrude from the surface of the terminal plate, and the other end region of the fixing member is slidable along the back surface of the terminal plate. The tab terminal is moved by the one end region side and the other end region side by sliding the fixing member in a direction opposite to the direction in which the tab terminal enters the terminal plate. And the tab terminal sandwiched between the terminal boards and pressed by the pressing portion onto the terminal board is pressed toward the terminal board.

  The terminal connection structure of the present invention can be configured such that the fixing member can be clamped in the form of a clip with the one end region side and the other end region side being a clamping pair. By sliding the fixing member, the tab terminal and the terminal plate can be clamped by the fixing member in a state where the tab terminal and the terminal plate are overlapped, and formed on the one end region side by the clamping force of the fixing member. The tab terminal can be pressed against the terminal plate by the pressing portion and fixed securely. Thus, in this structure, a tab terminal and a terminal board can be rapidly fixed only by sliding a fixing member. Further, in this configuration, the reliability of the electrical connection state between the terminal plate and the tab terminal can be improved with a simple configuration.

  Further, the fixing member is slid in the direction opposite to the direction in which the tab terminal enters the terminal board. That is, in this configuration, the fixing member is slid in the direction along the terminal plate, and the tab terminal is inserted along the terminal plate in the direction opposite to the direction. In this way, since the tab terminal intrusion direction and the sliding movement direction of the fixing member are not orthogonal to each other, there is no need to bend the tab terminal at a right angle as in Patent Document 1, and an excessive force acts on the tab terminal. It is possible to prevent the terminal from being damaged.

  A second characteristic configuration of the terminal connection structure according to the present invention is that a convex portion is formed on the upper surface of the terminal plate so that the pressing portion can ride on and pass through when the fixing member slides.

The clamping pair may be in contact with each other when nothing is clamped (initial state) or at a distance smaller than the thickness dimension in which the tab terminal and the terminal plate to be clamped are stacked.
According to this configuration, when the pressing portion formed on the one end region side during the sliding movement of the fixing member rides on the convex portion, the interval between the clamping pairs formed on the one end region side and the other end region side is set, for example, The tab terminal and the terminal plate can be temporarily secured larger than the stacked thickness dimension.
Thus, in this configuration, in the initial state, the distance between the clamping pair, which is a distance smaller than the thickness dimension in which the tab terminal and the terminal plate to be sandwiched are overlapped, is easily larger than the dimension during the sliding operation of the fixing member. Thus, it is possible to obtain a posture in which the tab terminal and the terminal plate in an overlapped state can be clamped by a clamping pair so that the pressing portion does not contact the tab terminal.
If the pressing portion passes through the convex portion by continuing the sliding movement of the fixing member, the gap between the clamping pairs tends to be smaller than the thickness dimension in which the tab terminal and the terminal plate are overlapped by the restoring force. At this time, the overlapping tab terminal and terminal plate can be pressed from above the tab terminal by the pressing portion.

In general, rather than pressing the end of the tab terminal with the pressing part and fixing it to the terminal board, the tab terminal is pushed by the pressing part at a position other than the end of the tab terminal while being fed to the terminal board side to some extent. It is easier to prevent the tab terminal from coming off when it is fixed to the terminal board.
By forming the convex portion as in this configuration, it is possible to easily create a state in which the tab terminal and the terminal plate can be pressed in a state where the fixing member is fed to the tab terminal to some extent. At the time of the pressing, since the pressing portion does not contact the tab terminal until reaching a desired pressing position, a pressing load is not applied to an unintended position in the tab terminal.

  Further, when the convex portion is formed as in this configuration, it is possible to prevent the fixing member from returning in the reverse direction of the slide movement after the pressing portion has passed the convex portion by the slide movement. Therefore, it becomes easy to maintain a desired pressing position by the pressing portion.

  A third characteristic configuration of the terminal connection structure according to the present invention is that a leg portion formed with a groove portion that guides the fixing member during the sliding movement has a peripheral portion of the terminal plate in a state where the fixing member is engaged with the groove portion. It is in the point fixed to.

  In this configuration, since the fixing member can be slid along the groove while being sandwiched between the terminal plate and the leg, it can be reliably slid in the desired sliding direction.

  A fourth characteristic configuration of the terminal connection structure according to the present invention is that a locking means for holding the position of the fixing member before sliding is formed across the fixing member and the groove.

  By providing the locking means as in the present configuration, the position of the fixing member before being slid can be surely fixed, so that the unintended sliding movement of the fixing member can be prevented in advance.

  According to a fifth characteristic configuration of the terminal connection structure according to the present invention, the locking means includes a locking piece protruding from the fixing member and a locking piece protruding from the groove, and a tab terminal is inserted into the terminal plate. A possible opening is formed, and the locking piece provided on the fixing member and the opening are configured to overlap in a plan view.

  By configuring the locking piece and the opening to overlap in plan view as in this configuration, the locking piece formed on the fixing member is caught on the periphery of the opening and the fixing member is prevented from coming out of the opening. Can be prevented.

  A sixth characteristic configuration of the terminal connection structure according to the present invention is that the one end region includes an operation portion extending in a direction opposite to a direction in which the tab terminal is pressed.

  According to this configuration, at the time of a slide operation, it is only necessary to pick the operation portion and slide the fixing member in a desired slide direction, so that the terminal connection structure can be configured with an easy and simple structure.

It is a disassembled perspective view which shows the terminal connection structure of this invention. It is a perspective schematic diagram of a terminal connection structure. It is a top view principal part schematic diagram of a terminal connection structure. It is a top view principal part schematic diagram (state without a terminal board) of a terminal connection structure. It is a section view principal part schematic diagram showing a slide mode of a fixing member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The terminal connection structure of the present invention is a terminal connection structure that reliably holds the electrical connection state of the terminal plate and the tab terminal using a fixing member.

As shown in FIGS. 1 to 5, the terminal connection structure X includes a terminal plate 20 to which the tab terminal 10 can be connected, and a fixing member 30 that maintains an electrical contact state between the tab terminal 10 and the terminal plate 20. .
The pressing portion 31 formed on the one end region 30a side of the fixing member 30 is disposed so as to protrude from the front surface 20a of the terminal plate 20, and the other end region 30b of the fixing member 30 slides along the back surface 20b of the terminal plate 20. Arrange it so that it can move.
By sliding the fixing member 30 in the direction opposite to the direction in which the tab terminal 10 enters the terminal plate, the tab terminal 10 and the terminal plate 20 are sandwiched between the one end region 30a side and the other end region 30b side, And the tab terminal 10 piled up on the terminal board 20 by the press part 31 is pressed to the terminal board 20 side.

  The tab terminal 10 may be in any form as long as it can be inserted. For example, a conventionally known one such as a copper wire or a rectangular wire can be used.

When the terminal board 20 is used in the terminal box for solar cell panels, it is good to use a thing with a large surface area so that the cooling effect can fully be exhibited. The terminal board 20 of this embodiment is provided with a terminal board opening 22 into which the tab terminal 10 can be inserted.
In the present embodiment, the fixing member 30 is slid and moved inside the terminal plate opening 22. Therefore, unlike the terminal connection structure described in Patent Document 1, the fixing member 30 is not arranged in a state where the terminal plate 20 protrudes, so that a space for sliding the fixing member 30 around the terminal connection structure is provided. There is no need to secure.

When the tab terminal 10 is inserted into the terminal plate opening 22 of the terminal plate 20, the tab terminal 10 comes into electrical contact with the terminal plate 20 by being pressed against the end of the terminal plate 20. In order to reliably maintain this electrical connection state, the clip-shaped fixing member 30 is used, and the tab terminal 10 is pressed against the terminal plate 20 side by the clamping force and fixed.
In addition, the terminal board 20 may be an aspect in which the terminal board opening 22 is not formed. For example, instead of the terminal plate opening 22, a notch may be provided at the end of the terminal plate 20, and the tab terminal 10 may be inserted into the notch.

  The terminal plate 20 of the present embodiment is formed with an inclined surface 23 that guides the tab terminal 10 in the direction of insertion into the terminal plate opening 22. By forming the inclined surface 23 in this way, when the tab terminal 10 is in close contact with the inclined surface 23, the degree of bending of the tab terminal 10 depends on the inclination angle of the inclined surface 23. At this time, it is possible to prevent the tab terminal 10 from being bent excessively and applying an excessive load to the tab terminal 10 to damage the tab terminal.

  The fixing member 30 has a portion (a clamping pair) that can clamp the terminal plate 20 in a clip shape, and at least one of the clamping pairs is a tab due to a clamping force that is generated when the clamping pair clamps another object. A force for pressing the terminal 10 against the terminal board 20 is generated. The fixing member 30 has a holding portion that can hold the terminal plate 20, and the tab terminal 10 and the terminal plate 20 are overlapped and held by this holding portion, and a force for pressing the tab terminal 10 against the terminal plate 20 is generated. Any material (eg, metal, plastic) and shape can be employed, as long as it is present.

  The fixing member 30 of the present embodiment forms a pressing portion 31 on one end region 30 a side so as to protrude from the front surface 20 a of the terminal plate 20, and the other end region 30 b of the fixing member 30 is on the back surface 20 b of the terminal plate 20. It is configured to be slidable along. The one end region 30a and the other end region 30b are connected by a bent portion 30c that bends. Further, the fixing member 30 is provided with a fixing member opening 30d through which the tab terminal 10 and the inclined surface 23 can enter. In this embodiment, the lower part of the pressing part 31 is configured to be the fixing member opening 30d.

  In the present embodiment, the one end region 30a side and the other end region 30b side form a clamping pair, and, like a general clip, exerts a clamping force to approach each other when clamping another object. Specifically, when nothing is sandwiched by the sandwiching pair (initial state: FIG. 5A), the sandwiching pair is in contact with each other, or the tab terminal 10 and the terminal plate 20 to be sandwiched are stacked. The distance is smaller than the vertical dimension. On the other hand, when the tab terminal 10 and the terminal plate 20 with which the sandwiching pair overlaps are sandwiched, a sandwiching force is generated by a restoring force that tries to return to the state when the sandwiching pair approaches each other and does not sandwich another object. In the present invention, the clamping force of this clamping pair is used. That is, by sliding the fixing member 30, the tab terminal 10 and the terminal plate 20 can be held by the fixing member 30 in a state where the tab terminal 10 and the terminal plate 20 are overlapped. Due to the clamping force of the fixing member 30, the tab terminal 10 is pressed toward the terminal plate 20 by the pressing portion 31 formed on the one end region 30 a side, and the tab terminal 10 is brought into close contact with the terminal plate 20 to make electrical contact therebetween. Keep state.

  As described above, in this configuration, the tab terminal 10 and the terminal plate 20 can be quickly fixed simply by sliding the fixing member 30.

  In such a state that the electrical contact state between the tab terminal 10 and the terminal plate 20 is maintained, the tab terminal 10 and the terminal plate 20 are soldered or welded so as to cover a portion in which the tab terminal 10 and the terminal plate 20 are in electrical contact with each other. You may comprise so that the electrical connection state of the tab terminal 10 and the terminal board 20 may be maintained.

  On the upper surface of the terminal board 20, a convex portion 21 is formed through which the pressing portion 31 can ride and pass when the fixing member 30 slides. According to this configuration, when the pressing portion 31 formed on the one end region 30a side rides on the convex portion 21 during the sliding movement of the fixing member 30, the gap between the clamping pairs is set to a thickness obtained by overlapping the tab terminal 10 and the terminal plate 20. It can be temporarily secured larger than the length (FIG. 5B). That is, in the initial state, the distance between the clamping pairs, which is a distance smaller than the thickness dimension in which the tab terminal 10 and the terminal plate 20 to be clamped are overlapped, is easily made larger than the dimension during the sliding operation of the fixing member 30. It is possible to spread the pressing portion 31 so that the tab terminal 10 and the terminal plate 20 in an overlapped state can be clamped by a clamping pair so as not to contact the tab terminal 10.

  When the pressing portion 31 passes the convex portion 21 by continuing the sliding movement of the fixing member 30, the gap between the clamping pairs tends to be smaller than the thickness dimension in which the tab terminal and the terminal plate are overlapped by the restoring force. At this time, the overlapping tab terminal 10 and terminal plate 20 can be pressed from above the tab terminal 10 by the pressing portion 31 (FIG. 5C).

  By forming the convex portion 21 as in this configuration, it is possible to easily create a state in which the tab terminal 10 and the terminal plate 20 can be pressed in a state where the tab terminal 10 is fed to the terminal plate 20 side to some extent. At the time of the pressing, since the pressing portion 31 does not come into contact with the tab terminal 10 until reaching a desired pressing position, a pressing load at an unintended position on the tab terminal 10 is not given.

In this embodiment, the leg part 40 which formed the groove part 41 which guides the fixing member 30 at the time of a slide movement is being fixed to the periphery of the terminal board 20 in the state which made the fixing part 30 engage in the groove part 41. FIG. For example, two leg portions 41 may be provided on the periphery of the terminal board 20 so as to face each other. A part of the periphery of the fixing member 30 (in this embodiment, the short side 30e of the fixing member 30) is engaged with the groove portion 41.
In this configuration, the fixing member 30 can be slid along the groove portion 41 while being sandwiched between the terminal plate 20 and the leg portion 40, and thus can be reliably slid in a desired sliding direction.

  Moreover, in this embodiment, the latching means 50 which hold | maintains the position before the sliding movement of the fixing member 30 is formed over the fixing member 30 and the groove part 41 (FIGS. 3 and 4). By providing the locking means 50, the position of the fixing member 30 before being slid can be reliably fixed, so that unintended sliding movement of the fixing member 30 can be prevented in advance.

The locking means 50 includes a locking piece 51 protruding from the fixing member 30 and a locking piece 52 protruding from the groove 41. In this embodiment, since the two leg portions 40 are provided, the locking pieces 52 may be formed one by one in the groove portion 41 provided in each leg portion 40. Further, the locking pieces 51 formed on the fixing member 30 side may be formed one by one on the opposing short sides 30e at positions corresponding to the respective locking pieces 52. For example, the locking piece 51 is formed on the side of the bent portion 30 c on the short side 30 e of the fixing member 30.
As described above, the terminal plate 20 is formed with the terminal plate opening 22 into which the tab terminal 10 can be inserted, and the locking piece 51 and the terminal plate opening 22 are configured to overlap in plan view. (Figure 3).
In this way, by configuring the locking piece 51 and the terminal plate opening 22 to overlap in a plan view, the two locking pieces 51 formed on the fixing member 30 are caught on the periphery of the terminal plate opening 22 and fixed. It is possible to prevent the member 30 from coming out of the terminal plate opening 22 in advance.

The one end region 30 a includes an operation unit 32 that extends in a direction opposite to the direction in which the tab terminal 10 is pressed. In the present embodiment, the operation unit 32 is configured such that the fixing member 30 is bent from the middle of the one end region 30a by the bending unit 30f and is extended in a substantially vertical direction with respect to the tab terminal 10.
When the tab terminal 10 is inserted into the fixing member opening 30d, the tab terminal 10 is guided to the fixing member opening 30d because of the curved shape of the bent portion 30f if the tab terminal 10 abuts below the operation portion 32. be able to. At the time of a slide operation, the operation unit 32 is picked and the fixing member 30 is slid in a desired slide direction.

A sliding mode of the fixing member 30 will be described (FIG. 5).
FIG. 5A shows the terminal connection structure X in the initial state. In this state, the fixing member 30 is fixed to the position before the sliding movement by the locking means 50, and the terminal plate opening 22 and the fixing member opening 30d are in communication with each other. insert.

  FIG. 5B shows the terminal connection structure X in which the fixing member 30 is in a sliding movement state. FIG. 5B shows a case where the pressing portion 31 of the fixing member 30 rides on the convex portion 21. At this time, the fixing member 30 can move relative to the tab terminal 10 without pressing the tab terminal 10 already fixed at a predetermined position. As a result, the fixing member 30 avoids the bent portion of the tab terminal 10 and moves to a portion where the tab terminal 10 reliably contacts the terminal plate 20.

  FIG. 5C shows the terminal connection structure X in which the sliding movement of the fixing member 30 is completed. In this state, the pressing portion 31 can surely press the tab terminal 10 and the terminal plate 20 in an overlapped state.

  INDUSTRIAL APPLICABILITY The present invention can be used for a terminal connection structure that reliably holds an electrical connection state between a terminal plate and a tab terminal using a fixing member in a solar cell panel or the like.

X terminal connection structure 10 tab terminal 20 terminal plate 20a surface 20b back surface 21 convex portion 22 terminal plate opening 30 fixing member 30a one end region 30b other end region 31 pressing portion 32 operation portion 40 leg portion 41 groove portion 50 locking means 51, 52 Locking piece

Claims (6)

A terminal plate to which a tab terminal can be connected, and a fixing member that holds an electrical contact state between the tab terminal and the terminal plate;
The pressing portion formed on the one end region side of the fixing member is disposed so as to protrude from the surface of the terminal plate, and the other end region of the fixing member is slidable along the back surface of the terminal plate. Placed in
The tab terminal and the terminal plate are held between the one end region side and the other end region side by sliding the fixing member in a direction opposite to the direction in which the tab terminal enters the terminal plate. And the terminal connection structure which presses the said tab terminal piled up on the said terminal board by the said press part to the said terminal board side.   The terminal connection structure according to claim 1, wherein a convex portion is formed on an upper surface of the terminal plate so that the pressing portion can ride on and pass through when the fixing member slides.   The terminal according to claim 1, wherein a leg portion having a groove portion that guides the fixing member during the sliding movement is fixed to a peripheral edge of the terminal plate in a state where the fixing member is engaged with the groove portion. Connection structure.   The terminal connection structure according to claim 3, wherein locking means for holding the position of the fixing member before sliding is formed across the fixing member and the groove. The locking means is constituted by a locking piece protruding from the fixing member and a locking piece protruding from the groove, and forms an opening into which the tab terminal can be inserted into the terminal plate,
The terminal connection structure according to claim 4, wherein the locking piece provided on the fixing member and the opening overlap each other in plan view.   The terminal connection structure according to any one of claims 1 to 5, wherein the one end region includes an operation portion extending in a direction opposite to a direction in which the tab terminal is pressed.

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