JP2009239025A - Connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure that enables an electronic component to be easily connected to an electric cable. <P>SOLUTION: An LED module 1 has an electric circuit constituted by sandwiching the electronic component 40, having contacts 40a disposed at both ends in an opposed direction X, from both sides in the opposed direction X to connect with the contacts 40a, and includes a pair of connection terminals 30 for electrically connecting a flat cable 100 and the electronic component 40 to each other and a module case 10 allowing the connection terminals 30 disposed opposite each other to be inserted and connected. The connection terminals 30 each have a fixed plate 30a inserted and fixed to the module case 10, an inclined connection portion 30c coming into contact with the contact 40a, a main spring portion 30b energizing the inclined contact portion 30c in the opposed direction X using reaction force of the fixed plate 30a, and a sub-spring portion 30d for assisting energization of the inclined contact portion 30c toward the opposed direction by the main spring portion 30b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a connection structure for connecting, for example, an electronic component used in a vehicle lighting device or control device to an electric cable.

  2. Description of the Related Art Conventionally, an electronic component mounting module in which a plurality of electronic components are mounted on a printed circuit board is used for various control units and lighting devices of automobiles. In such an electronic component mounting module, for example, an electronic component is mounted on a board by solder connection, and the module and the external electric circuit are connected by a connector having terminals soldered to the board (see Patent Document 1). .

  However, since electronic components and circuit conductors are connected by soldering, for example, when connecting electronic components that are increasingly miniaturized, such as LED chips that are 2 mm × 2 mm square in plan view, much man-hours or capital investment is required. There was a problem of requiring quality control.

JP 2004-111435 A

  An object of this invention is to provide the connection structure which can connect an electronic component to an electric cable easily.

  According to the present invention, an electronic component in which contacts are arranged at both ends in the opposing direction is sandwiched from both sides in the opposing direction and brought into contact with each contact, thereby forming an electric circuit and electrically connecting the electric cable and the electronic component. A connection structure comprising a pair of terminal members to be connected and a box that allows the terminal members to be inserted and fixed facing each other, wherein the terminal members are inserted and fixed to the box. A fixing portion; a contact portion that contacts the contact; a spring portion that urges the contact portion in an opposing direction using the insertion fixing portion as a reaction force; and the spring portion in the opposing direction of the contact portion. It is characterized by comprising an urging assisting part for assisting urging.

As an aspect of the present invention, the contact portion can be configured by an inclined surface that is disposed on the opposite side of the pair of connection terminals and in which the upper side is inclined outward in the opposite direction.
As an aspect of the present invention, the insertion fixing part, the spring part, the contact part, and the biasing auxiliary part can be integrally configured in this order.

  Further, as an aspect of the present invention, the spring portion is formed so as to protrude from the insertion fixing portion, the urging assisting portion is formed by being folded back from the tip of the contact portion, and the insertion fixing portion Can be contacted.

The facing direction is a direction in which a pair of connection terminals are arranged to face each other, and includes the same direction as the longitudinal direction of the flat cable to be attached.
The electronic component includes a light source device such as an LED chip, various sensors, a resistor for adjusting a supply voltage, and a diode constituting a bypass circuit when a high voltage is applied.

The connection terminal includes a terminal that directly connects the electronic component to the electric cable and a terminal that is indirectly connected to the electric cable by connecting the electronic components to each other.
The electric cable includes a flat cable including a plurality of flat conductors disposed at predetermined intervals in the width direction and a covering member that integrally covers the plurality of flat conductors in a flat plate shape.
In addition, although the ribbon electric wire which arranged and integrated the round strand wire in the width direction may be used as an electrical cable, the flat cable with a high heat dissipation effect is more preferable.

  According to the present invention, it is possible to provide a connection structure that can easily connect an electronic component to an electric cable.

  The LED module 1 of the present invention includes a pair of connection terminals 30 (31, 32, 33) for sandwiching an electronic device 40 (41, 42, 43) having contacts 40a at both ends in the facing direction X from both sides in the facing direction X. And the device case 12 that allows the insertion and fixing of the connection terminals 30 arranged to face each other.

  The connection terminal 30 sandwiches the electronic device 40 from both sides in the facing direction X and makes contact with each contact 40a (41a, 42a, 43a), thereby forming an electric circuit and electrically connecting the flat cable 100 and the electronic device 40. Connected.

The connection terminal 30 is attached to the device case 12 by a fixed plate 30a, an inclined contact portion 30c that contacts the contact 40a, and the inclined contact portion 30c in the facing direction X with the fixed plate 30a as a reaction force. The main spring portion 30b is energized, and the sub spring portion 30d assists the biasing of the inclined contact portion 30c in the facing direction X by the main spring portion 30b.
In addition, the inclined contact portion 30c is arranged on the connection terminal 30 on the opposite side of the pair of connection terminals, and is configured by an inclined surface whose upper side is inclined outward in the opposing direction X.

The fixed plate 30a, the main spring portion 30b, the inclined contact portion 30c, and the sub spring portion 30d are integrally configured in this order.
The main spring portion 30b is formed so as to protrude from the fixed plate 30a.
The sub spring portion 30d is formed by being folded back from the tip of the inclined contact portion 30c, and is in contact with the fixed plate 30a.

The configuration of the LED module 1 will be described in detail with reference to FIGS.
1 is a perspective view of the LED module 1, FIG. 2 is an exploded perspective view of the LED module 1, FIG. 3 is an explanatory view for assembling the connection terminal 30 to the device case 12, and FIG. The explanatory view by the top view (Drawing 4 (a)) and bottom view (Drawing 4 (b)) of device case 12 with which connecting terminal 30 was assembled is shown.

  Further, FIG. 5 is an explanatory view of the assembly of the electronic device 40 and the case cover 11 to the device case 12 to which the connection terminal 30 is assembled, and FIG. 6 is a plan view of the device case 12 to which the electronic device 40 is assembled. (FIG. 6A) and an explanatory view based on a bottom view (FIG. 6B) are shown. FIG. 7 is a perspective view of the connection terminal 30 and the electronic device 40 in a state assembled to the device case 12. FIG. FIG. 9 is an explanatory diagram showing how the module case 10 assembled with the connection terminal 30 and the electronic device 40 is attached to the flat cable 100, and FIG. 9 is an explanatory diagram showing a cross-sectional view in the facing direction X.

  The LED unit 1 including the connection terminal 30 that sandwiches the electronic device 40 from both sides in the facing direction X and the device case 12 that allows insertion and fixation of the connection terminal 30 that is disposed to face each other constitutes an electric circuit and is electronic. This is a connection unit that electrically connects the device 40 and the flat cable 100.

  The flat cable 100 includes two conductors 101 arranged at a predetermined interval in the width direction Y and a non-conductive laminate sheet 102 that integrally covers the two conductors 101 in a flat plate shape. ing.

  The electronic device 40 adjusts a basic voltage applied to the LED chip 42 to a predetermined voltage, an LED chip 42 serving as a light source, a diode 41 that constitutes a bypass circuit when a high voltage is applied to the LED chip 42 It is comprised with the resistor 43 which comprises a voltage adjustment circuit, and has arrange | positioned in order of the diode 41, LED chip 42, and the resistor 43. FIG.

  The LED chip 42 is formed in a substantially rectangular parallelepiped of about 1 to 2 mm square whose height is low with respect to the width and depth, and the LED chip 42 includes a light emitting portion 42b having a circular shape in plan view on the upper surface, and on both opposing side surfaces. An L-shaped contact 42a continuous from the bottom surface is provided.

  Further, contact points 41 a and 43 a continuous from the bottom surface are provided on both side surfaces of the diode 41 and the resistor 43 facing each other. And the electronic device 40 (42, 41, 43) is arrange | positioned so that the contact 40a (42a, 41a, 43a) may become the opposing direction X which is the same direction as the longitudinal direction of the flat cable 100.

The module case 10 includes a device case 12 that allows the connection terminal 30 and the electronic device 40 to be inserted and fixed, and a case cover 11 that is locked and fixed to the upper surface of the device case 12.
The case cover 11 is provided with a lens portion 11a substantially at the center of the upper surface, and is provided with a locked portion 11b that allows the locking hook 12a of the device case 12 to be locked at the center of both sides in the facing direction X. It is formed in the visual H type.

  As shown in FIG. 8, the lens unit 11 a is configured by a circular lens in a plan view disposed in the irradiation direction S of the light emitting unit 42 b above the LED chip 42 mounted on the device case 12.

The device case 12 allows the insertion of the connection terminal 30 and the electronic device 40 and includes terminal insertion portions 20 (21, 22, 23) penetrating in the thickness direction Z, and the center of both side portions in the opposing direction X on the upper surface. A locking hook 12 a that is locked to the locked portion 11 b of the case cover 11 is provided.
Moreover, the center of the width direction Y of the bottom face of the device case 12 is recessed in the thickness direction Z, and the fitting groove 12b into which the flat cable 100 to be attached is fitted is formed.

  The terminal insertion section 20 includes a diode terminal insertion section 21 that allows the insertion of the diode 41 and the diode connection terminal 31 that contacts the diode 41, and the LED connection terminal 32 that contacts the LED chip 42 and the LED chip 42. The LED terminal insertion portion 22 that allows insertion of the resistor 43 and the resistor terminal insertion portion 23 that permits insertion of the resistor connection terminal 33 that contacts the resistor 43 and the resistor 43, in the width direction Y is arranged in this order.

  Each terminal insertion portion 20 includes an insertion groove main body 20a (21a, 22a, 23a) penetrating the device case 12 in the thickness direction Z, and a facing direction X of the insertion groove main body 20a on the bottom surface side of the terminal insertion portion 20. The plate insertion / fixing portion 20b (21b, 22b, 23b) that allows the fixing plate 30a to be inserted and fixed, and the insertion groove main body 20a on the upper surface side of the terminal insertion portion 20 in the facing direction X The device insertion portion 20c (21c, 22c, 23c) that is arranged near the center and allows insertion of the electronic device 40 is configured.

  It should be noted that the plate insertion fixing portion 21ba of the diode terminal insertion portion 21 on the front side (lower left side in FIG. 3) of the insertion groove main body 20a, the plate insertion fixation portion 22ba of the LED terminal insertion portion 22, and the resistance Of the plate insertion / fixing portion 23ba of the device terminal insertion portion 23, the plate insertion / fixation portion 21ba and the plate insertion / fixation portion 22ba communicate with each other, and the diode terminal on the back side (upper right side in FIG. 3) The plate insertion fixing portion 21bb of the insertion portion 21, the plate insertion fixing portion 22bb of the LED terminal insertion portion 22, and the plate insertion fixing portion 23bb of the resistor terminal insertion portion 23 communicate with each other.

  The connection terminal 30 includes a diode connection terminal 31 that contacts the diode 41, an LED connection terminal 32 that contacts the LED chip 42, and a resistor connection terminal 33 that contacts the resistor 43. The two terminal members are arranged opposite to each other with the center of the opposing direction X as the axis of symmetry to constitute a pair of connection terminals.

  Each connection terminal 30 is in contact with a fixed plate 30 a (31 a, 32 a, 33 a) that is fixed to the plate insertion / fixing portion 20 b of the terminal insertion portion 20 in the device case 12, and an inclined contact that contacts the contact 40 a of the electronic device 40. A portion 30c (31c, 32c, 33c), a main spring portion 30b (31b, 32b, 33b) for urging the inclined contact portion 30c in the opposite direction using the fixed plate 30a as a reaction force, and an inclination by the main spring portion 30b It is comprised by the subspring part 30d (31d, 32d, 33d) which assists the urging | biasing to the opposing direction X of the contact part 30c.

The fixed plate 30a is configured as a rectangular plate having a wide front view in the width direction Y and the thickness direction Z.
The main spring portion 30b, the inclined contact portion 30c, and the sub spring portion 30d are belt-like bodies having a width of about 1/3 of the fixed plate 30a and projecting upward from the center of the upper side of the fixed plate 30a by the following bending process. Is formed.

  Specifically, a horizontal portion formed by projecting upward from the center of the upper side in the width direction of the fixed plate 30a and bending about 90 degrees toward the center of the facing direction X, and downward from the tip of the horizontal portion toward the center of the facing direction X. An inclined portion formed by bending approximately 60 degrees, and a return inclined portion formed so as to be folded back approximately 165 degrees outward from the lower end of the inclined portion toward the outer side in the facing direction X and to return to the lower side of the horizontal portion, It is comprised by the folding | turning edge part formed by making it bend | fold at two steps toward the outer side downward of the opposing direction X from the front-end | tip of a return inclination part.

  Among these, a horizontal portion that protrudes upward from the center of the upper side width direction of the fixed plate 30a and bends approximately 90 degrees, and a bent portion that is bent approximately 60 degrees from the tip of the horizontal portion toward the center downward in the facing direction X. Is the main spring portion 30b, the inclined portion is the inclined contact portion 30c, and the return spring portion and the return end portion are the sub-spring portion 30d from the folded back portion from the lower end of the inclined portion.

  Note that the fixing plate 31a of the diode connection terminal 31 on the front side (lower left side in FIG. 3) and the fixing plate 32a of the LED connection terminal 32 are integrally formed and thus are electrically connected to each other. The fixed plate 31a of the diode connection terminal 31, the fixed plate 32a of the LED connection terminal 32, and the fixed plate 33a of the resistor connection terminal 33 on the side (upper right side in FIG. 3) are integrally connected, so that they are electrically connected. Has been.

  In addition, the connection plate 30 that penetrates the flat cable 100 and is electrically connected to each of the fixed plate 31 a and the fixed plate 32 a on the near side, and the fixed plate 33 a of the resistor connection terminal 33 are integrally connected. The leg part 34 is comprised integrally. The connecting leg portion 34 includes three piercing blades 34a configured by surfaces in the facing direction X and the thickness direction Z with a predetermined interval in the facing direction X.

  In addition, although the connection terminal 30 of such a structure is formed by press work from the copper plate which has appropriate elasticity, it may be other than a metal member as long as it has electroconductivity.

A method for assembling the LED module 1 constituted by the module case 10, the connection terminal 30, and the electronic device 40 configured as described above will be described below.
First, as shown in FIG. 3A, of the connection terminals 30 (31, 32, 33) configured in pairs, the connection terminals 30 (31, 32, 33) on the side on which the fixed plates 31a, 32a, 33a are integrally configured. 33) is the back side, and the connection terminals 30 (31, 32, 33) on the side where the connection legs 34 are mounted are the front side, and the inclined contact portions 30c face each other toward the center in the facing direction X. The connection terminals 30 (31, 32, 33) that are upside down with the connection legs 34 facing upward are arranged above the device case 12 upside down.

  At this time, the device case 12 is arranged upside down so that the plate insertion / fixation portion 21bb, the plate insertion / fixation portion 22bb and the plate insertion / fixation portion 23bb which communicate with each other are on the back side and the fitting groove 12b is on the upper side. To do.

  Then, the main spring portion 30b, the inclined contact portion 30c, and the sub spring portion 30d are inserted into the insertion groove main body 20a until the fixing plate 30a is inserted and fixed to the plate insertion fixing portion 20b. In this state, as shown in FIG. 3 (b), the connection leg 34 can be inserted into the device case 12 in such a manner that the connection leg 34 protrudes from the terminal insertion portion 20 of the fitting groove 12b. .

  Further, as shown in FIG. 4B, which is a bottom view of the device case 12 to which the connection terminal 30 is inserted and fixed, each connection terminal 30 has the fixing plate 30a inserted and fixed to the plate insertion and fixing portion 20b. The positions of the connection terminals 30 that are arranged to face each other are fixed.

  As shown in FIG. 4A and FIG. 9A, which are plan views of the device case 12 with the connection terminals 30 inserted and fixed, the inclined contact portions 30c are arranged facing each other, and the terminal insertion portions The inclined contact portion 30c of the connection terminal 30 that is inserted and fixed to 20 protrudes in the facing direction X in the plane of the device insertion portion 20c of each terminal insertion portion 20 and has a substantially V shape in side view.

  Thus, the upside down direction of the device case 12 in which the connection terminals 30 are inserted and fixed to the terminal insertion portions 20 is turned upside down, and the electronic devices 40 are connected to the terminal insertion portions from above the device case 12. 20 is inserted into the device insertion portion 20c (see FIG. 5B).

  At this time, as shown in FIG. 4A and FIG. 9A, each electronic device 40 protrudes in the facing direction X in the plane on the device insertion portion 20c side of each terminal insertion portion 20, and is substantially V in side view. It is inserted and inserted between the inclined contact portions 30c of the connection terminal 30 inserted and fixed to the terminal insertion portion 20 in a letter shape (see FIGS. 6 and 9B).

  More specifically, the electronic device 40 is inserted and attached by pushing the inclined contact portion 30c outwardly in the opposite direction X1 against the elastic force of the main spring portion 30b and the sub-spring portion 30d using the fixed plate 30a as a reaction force. The urging force of X2 (FIG. 6A) in the opposing direction by the main spring portion 30b and the sub spring portion 30d acts on the contact 40a of the electronic device 40 that is placed on the contact portion 30c. .

  Therefore, the contact 40a and the inclined contact portion 30c can be reliably electrically connected, and the electronic device 40 is inserted in a state where the contact 40a and the inclined contact portion 30c are placed on the inclined contact portion 30c having a substantially V shape. can do.

  As shown in FIGS. 5 (c) and 9 (c), the locking hook 12a and the locked portion 11b are locked from above the device case 12 in this state with the electronic device 40 inserted and attached to the device. A module cover 10 is configured by attaching a case cover 11 to the upper surface of the case 12. In this state, the case cover 11 is attached so that the lens portion 11a of the case cover 11 is disposed on the irradiation direction S of the diode connection terminal 31b of the diode connection terminal 31.

  Then, as shown in FIG. 8, the flat cable 100 is passed through the non-conductive laminate sheet 102 with the piercing blade 34a of the connection leg 34 protruding from the bottom surface of the device case 12, and the flat cable 100 is inserted into the fitting groove 12b. Fit. Then, the protruding portion 34b protruding from the bottom surface (upper surface in FIG. 8) of the flat cable 100 is curled outward in the width direction Y, and the mounting of the module case 10 to the flat cable 100 is completed.

  Thereby, the conductor 101 of the flat cable 100 and the connection terminal 30 can be electrically connected by the piercing blade 34a that penetrates the flat cable 100 together with the non-conductive laminate sheet 102. Therefore, the electronic device 40 electrically connected to the connection terminal 30 and the conductor 101 can be electrically connected.

  In addition, the fixing plates 31a and 32a on the front side are integrally formed, and the connection terminals 30 integrally forming the fixing plates 31a, 32a, and 33a on the back side are arranged to face each other, and between the opposed inclined contact portions 30c. Since the electronic device 40 is inserted into the LED chip 42 as a light source, an electric circuit with the LED chip 42, a bypass circuit when a high voltage is applied to the LED chip 42 by the diode 41, and an application to the LED chip 42 by the resistor 43. A voltage adjustment circuit that adjusts the basic voltage to be a predetermined voltage can be configured, and the electric circuit can be electrically connected to the flat cable 100.

  Furthermore, as shown in FIG. 7 which is a perspective view in a state of being transmitted through the device case 12 indicated by a dotted line, each electronic device 40 cuts between the opposed inclined contact portions 30c and 30c to cause the fixed plate 30a to react with the reaction force. Since the main spring portion 30b and the sub spring portion 30d receive the urging force and are mounted on the inclined contact portion 30c having a substantially V shape in side view, the contact 40a and the connection terminal 30 are connected. An electrical connection can be made reliably.

  Further, although the connection terminal 30 is fixed to the device case 12 by the fixing plate 30a and is fixed to the flat cable 100 by the connection leg portion 34, the main spring portion 30b and the sub spring portion 30d which are two spring bodies. The electronic device 40 can be supported by the inclined contact portion 30c via the gap, that is, in a state where it is lifted from the device case 12.

  Therefore, for example, even when the module case 10 is deformed by heat or when an external force is applied to the flat cable 100, the main spring portion 30b and the sub-spring portion 30d, which are spring bodies, are subjected to deformation load or external force load. Since it can absorb, it can prevent the bad influence of the said load reaching the electronic device 40. FIG.

  Furthermore, even when a change occurs in the relative position between the electronic devices 40, the main spring part 30b and the sub spring part 30d, which are spring bodies, can absorb the change in the relative position, and thus have high reliability. An electric circuit can be constructed.

  The inclined contact portion 30c is biased not only with the main spring portion 30b that is a spring body but also with the sub spring portion 30d that assists the biasing of the main spring portion 30b, so that the electronic device 40 can be reliably tilted. It can be supported by the contact portion 30c.

  Further, the reaction force of the sub spring part 30d is the fixed plate 30a in the same manner as the reaction force of the main spring part 30b, so that the urging direction of the sub spring part 30d is the same as the urging direction of the main spring part 30b. The sub-spring part 30d can assist the urging of the main spring part 30b more efficiently.

  In the description of the method of attaching the LED module 1 to the flat cable 100 described above, the connecting leg 34 is fixed to the flat cable 100 by curling the protruding portion 34b penetrating the flat cable 100 and protruding from the bottom surface. The connecting leg 34 may be fixed to the flat cable 100 by attaching a retaining means (not shown) to the protruding part 34b without curling the protruding part 34b.

  Alternatively, the electronic device 40 may be mounted after the device case 12 with the connection terminal 30 inserted and fixed is attached to the module case 100.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The electronic component of the present invention corresponds to the electronic device 40, the diode 41, the LED chip 42, and the resistor 43,
Similarly,
The electric cable corresponds to the flat cable 100,
The terminal members correspond to the connection terminal 30, the diode connection terminal 31, the LED connection terminal 32, and the resistor connection terminal 33.
The box corresponds to the device case 12,
The connection structure corresponds to the LED module 1,
The insertion fixing part corresponds to the fixing plates 30a, 31a, 32a, 33a,
The contact portions correspond to the inclined contact portions 30c, 31c, 32c, 33c,
The spring portion corresponds to the main main spring portion 30b, 31b, 32b, 33b,
The biasing assisting part corresponds to the sub spring parts 30d, 31d, 32d, 33d,
The electrical circuit corresponds to a bypass circuit and a voltage regulator circuit,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

  The flat cable 100 only needs to be the flat cable 100 covered with the non-conductive laminate sheet 102 that is an insulating member to which the connection leg 34 is easily connected, and is not particularly limited to the one in the present embodiment. Specifically, the material of the nonconductive laminate sheet 102 is preferably PET resin.

  Further, the conductor 101 may be a conductor having a round cross section as well as a strip-shaped conductor excellent in heat dissipation, and the conductor 101 may be any material as long as it has conductivity. Preferably, it is made of metal, more preferably copper or copper alloy having excellent conductivity.

The perspective view of a LED module. The disassembled perspective view of an LED module. Explanatory drawing about the assembly | attachment of the connecting terminal to a device case. Explanatory drawing of the device case with which the connection terminal was assembled | attached. Explanatory drawing about the assembly | attachment of the electronic device and case cover to a device case. Explanatory drawing of the device case in which the electronic device was assembled | attached. The perspective view of the connection terminal of the state assembled | attached to the device case, and an electronic device. Explanatory drawing about the attachment to the flat cable of a module case. Explanatory drawing by sectional drawing of the opposing direction X. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... LED module 12 ... Device case 20 ... Terminal insertion part 21 ... Diode terminal insertion part 22 ... LED terminal insertion part 23 ... Resistor terminal insertion part 30 ... Connection terminal 31 ... Diode connection terminal 32 ... LED connection terminal 33 ... resistor connection terminals 30a, 31a, 32a, 33a ... fixed plates 30b, 31b, 32b, 33b ... spring portions 30c, 31c, 32c, 33c ... contact portions 30d, 31d, 32d, 33d ... subsprings Unit 40 ... electronic device 41 ... diode 42 ... LED chip 43 ... resistors 40a, 41a, 42a, 43a ... contact 100 ... flat cable X ... opposite direction

Claims (4)

An electronic circuit having contacts disposed at both ends in the opposite direction is sandwiched from both sides in the opposite direction and brought into contact with each contact, thereby forming an electric circuit and a pair of electrical connections between the electric cable and the electronic component. A terminal member;
A connection structure including a box that allows insertion and fixation of the terminal member arranged to face each other,
The terminal member;
An insertion fixing part to be fixed to the box;
A contact portion that contacts the contact;
Using the insertion fixing part as a reaction force, a spring part for urging the contact part in the opposite direction;
The connection structure comprised with the biasing assistance part which assists the biasing to the opposing direction of the said contact part by this spring part. The contact portion is
The connection structure according to claim 1, wherein the connection structure is arranged on an opposite side of the pair of connection terminals and is configured with an inclined surface whose upper side is inclined outward in the opposite direction. The connection structure according to claim 1 or 2, wherein the insertion fixing portion, the spring portion, the contact portion, and the bias assisting portion are integrally configured in this order. The spring part is formed by protruding from the insertion fixing part,
The connection structure according to claim 3, wherein the urging assisting portion is formed by being folded back from a tip of the contact portion and is brought into contact with the insertion fixing portion.

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