JP5701682B2 - Electrical connection device for LED substrate - Google Patents

Description

  The present invention relates to an electrical connection device for an LED board that electrically connects LED boards as boards on which LED chips are mounted.

  As disclosed in Patent Document 1 and Patent Document 2, an electrical connection device for a substrate that electrically connects substrates is known. The electrical connection device for a board disclosed in Patent Document 1 includes one connector attached to one printed circuit board and the other connector attached to the other printed circuit board. By being fitted, the printed circuit boards are configured to be electrically connected to each other.

  The one connector includes a contact portion housing (2) that holds the contact portion (11) of the terminal (10) and a tail portion housing (3) that holds the tail portion (12) of the terminal (10). Is provided. The contact portion (11) constitutes a portion that contacts the terminal of the other connector, and the tail portion (12) constitutes a portion that is mounted on one printed circuit board. And the terminal (10) is provided with the flexible connection part (13) provided between the contact part (11) and the tail part (12), and connecting these together. The flexible connecting portion (13) is configured by connecting a plurality of U-shaped portions (14) having bent portions in series.

  One connector in the board electrical connection device disclosed in Patent Document 1 has a plurality of bent portions so that a flexible coupling portion as an elastic structure portion that occupies a relatively large space in the connector (13) is provided. Thereby, this board | substrate electrical connection apparatus is comprised so that the shift | offset | difference of the relative position of both connectors at the time of one connector and the other connector fitting may be absorbed.

  The electrical connection device for a board disclosed in Patent Document 2 includes a socket connector mounted on one circuit board and a plug connector mounted on the other circuit board, and these connectors are fitted to each other. Thus, the circuit boards arranged opposite to each other are electrically connected to each other. The socket connector includes an inner molding (20), an outer molding (30) and a cover molding (60) as housing elements, and a plurality of terminals (40). The inner molding (20) is fitted to the mating plug connector, the outer molding (30) is provided outside the inner molding (20), and the cover housing (60) is provided outside the outer molding (30).

  Furthermore, in each terminal (40) in the socket connector, the first base (41) press-fitted into the groove of the inner molding (20) and the second base (42) press-fitted into the groove of the outer molding (30). A third base portion (43) to be press-fitted into the groove of the cover molding (60) and a tail portion (47) to be soldered to one circuit board are provided. Further, each terminal (40) has an inverted U-shaped first displacement absorbing part (45) connecting the first base part (41) and the second base part (42), a second base part (42) and a third base part. An inverted U-shaped second displacement absorbing portion (46) that connects the base portion (43) is provided. The first displacement absorbing portion (45) and the second displacement absorbing portion (46) are provided with bent portions.

  The socket connector in the board electrical connection device disclosed in Patent Document 2 has a plurality of bent portions, and therefore, a first displacement absorbing portion (45) as an elastic structure portion that occupies a relatively large space. And the 2nd displacement absorption part (46) is provided. Thereby, this board | substrate electrical connection apparatus is comprised so that the shift | offset | difference of the relative position of both connectors at the time of the socket connector and plug connector fitting may be absorbed.

Japanese Utility Model Publication No. 6-44063 JP 2007-109600 A

  As an electrical connection device for LED substrates for electrically connecting LED substrates as substrates on which LED chips are mounted, the electrical connection device for substrates disclosed in Patent Document 1 or Patent Document 2 is used. it can. The electrical connection device for a board disclosed in Patent Document 1 or Patent Document 2 has an elastic structure portion that occupies a relatively large space in the connector because the terminal of one connector has a plurality of bent portions. Is provided. By this elastic structure portion, the board electrical connection device disclosed in Patent Document 1 or Patent Document 2 absorbs a relative positional shift when both connectors mounted on each board are fitted. It is comprised so that.

  However, the elastic structure portion provided on the terminal of one connector and absorbing the relative positional shift when the two connectors are fitted has a plurality of bent portions, and therefore has a relatively large space in the connector. Will be occupied. For this reason, the electrical connection apparatus for substrates disclosed in Patent Document 1 and Patent Document 2 causes an increase in space necessary for mounting. Therefore, it is desired to realize an electrical connection device for an LED board that can save space required for mounting.

  In view of the above circumstances, the present invention can sufficiently absorb a relative positional shift when both connectors mounted on each LED board are fitted, and is necessary for mounting. It aims at providing the electrical connection apparatus for LED boards which can aim at the space saving.

An electrical connection device for an LED board according to a first invention for achieving the above object is an electrical connection device for an LED board that electrically connects LED boards as substrates on which LED chips are mounted. A first connector mounted on the first LED board provided as the LED board, and a second LED board provided as the LED board electrically connected to the first LED board. A second connector connected to the first connector. In the electrical connection device for an LED board according to the first aspect of the present invention, the first connector is electrically connected to the conductive portion of the first LED board and is fixed to the first LED board. One terminal and a first housing for holding the first terminal, and the second connector is electrically connected to the conductive portion of the second LED board and fixed to the second LED board. One second terminal and a second housing holding the second terminal, and the first housing and the second terminal are fitted by fitting the first housing and the second housing. Are electrically connected, and at least one of the one first terminal in the first connector and the one second terminal in the second connector is the first board, and C Characterized in that it is to deflectable supporting projects Managing and cantilevered along the fitting direction of the second housing.

  According to the present invention, the first connector is electrically connected and fixed to the first LED board at the first terminal. On the other hand, the second connector is electrically connected to the second LED substrate and fixed at the second terminal. In the first and second connectors, at least one of the first and second terminals fixed to the LED substrate protrudes in a cantilever manner along the fitting direction of the first and second housings. It is supported so that it can bend. For this reason, the displacement of the relative position when both the connectors mounted on each LED board are fitted is absorbed by bending the terminal that protrudes in a cantilevered manner along the fitting direction. Connection will be maintained. In addition, the terminals that maintain the electrical connection by absorbing the relative misalignment of both connectors are projected along the mating direction of both connectors, so the relative misalignment of both connectors is a compact space. Can be efficiently and sufficiently absorbed. As a result, the structure of the terminal that absorbs the relative misalignment when the two connectors are fitted is greatly reduced in size, and the space required for mounting can be saved. That is, in the electrical connection device for an LED substrate according to the present invention, there is provided an elastic structure portion that occupies a relatively large space in the connector because it has a plurality of bent portions as in the prior art. Therefore, a significant space saving is achieved.

  Therefore, according to the present invention, it is possible to sufficiently absorb the displacement of the relative position when the two connectors mounted on each LED board are fitted, and to save the space required for mounting. Thus, it is possible to provide an electrical connection device for an LED substrate that can be realized.

  An electrical connection device for an LED board according to a second invention is the electrical connection device for an LED board according to the first invention, wherein the first housing is provided as a plug housing, and the second housing is an end of the plug housing. The first terminal is supported in a cantilevered manner along the fitting direction so as to be deflectable with respect to the first LED board, The plug housing has a plurality of housing members that hold the first terminals and are separately formed.

  According to the present invention, the first housing as the plug housing that fits into the second housing as the receptacle housing is constituted by a plurality of housing members that hold the first terminal projecting so as to bend and that are formed separately. For this reason, the first connector configured to include the first terminal and the plug housing has a structure that is more easily bent at the place where the plug housing is separated. As a result, a structure that can easily absorb a relative positional shift when the two connectors mounted on the LED board are fitted can be easily constructed by separately forming the plug housing.

  An electrical connection device for an LED board according to a third invention is the electrical connection device for an LED board according to the second invention, wherein the first connector is provided as a metal member separate from the first terminal. A first fixing bracket that is fixed to one LED substrate; and a plurality of housing members on a connection end side that is an end side connected to a conductive portion of the first LED substrate in the first terminal. A connection-side housing member that covers a part of the first terminal, and a tip-side housing member that covers a part of the first terminal on the tip side that is the end side protruding in a cantilevered manner in the first terminal. A movable range that is provided and is a range in which the distal end side housing member is relatively displaceable with respect to the first LED substrate is regulated by the first fixing bracket.

  According to this invention, since the distal end side housing member and the connection side housing member are separated, even when the distal end side housing member is displaced together with the distal end side of the first terminal, the displacement of the distal end side housing member is reduced. A structure in which the influence is hardly transmitted to the connection-side housing member is constructed. Therefore, it is possible to easily realize a connector structure in which a load hardly acts on a portion of the first terminal connected to the conductive portion of the first LED substrate. Further, according to the present invention, the first connector can be attached to the first LED board by the first fixing bracket that is separate from the first terminal, so that the first connector can be attached more firmly to the first LED board. it can. And since the 1st fixing bracket regulates the movable range of a front end side housing member, it can prevent that a 1st terminal will deform | transform too much with a front end side housing member.

  The electrical connection device for an LED board according to a fourth invention is the electrical connection device for an LED board according to the second or third invention, wherein the plug housing is bent together with the first terminal with respect to the first LED board. It is possible to be provided.

  According to the present invention, the displacement of the relative position when the two connectors mounted on each LED board are fitted is efficiently absorbed even in the plug housing that bends together with the first terminal with respect to the first LED board. Will be.

  An electrical connection device for an LED board according to a fifth invention is the electrical connection device for an LED board according to any one of the second to fourth inventions, wherein the second connector is a metal separate from the second terminal. A second fixing member provided as a member and fixed to the second LED substrate and further holding the receptacle housing to the second LED substrate is further provided.

  According to the present invention, since the second connector is fixed to the second LED board also by the second fixing bracket separate from the second terminal, the second connector can be more firmly attached to the second LED board. . Moreover, when the 2nd fixing metal fitting is provided around the opening in the 2nd housing as a receptacle housing, the improvement in the intensity | strength in the fitting part of a plug housing and a receptacle housing can be aimed at.

  An electrical connection device for an LED board according to a sixth aspect is the electrical connection device for an LED board according to any one of the second to fifth aspects, wherein the end of the plug housing is inserted into the opening in the receptacle housing. The outer surface of this is opposed to the inner surface of the opening through a gap.

  According to the present invention, even in a compact gap space between the inner surface of the opening of the receptacle housing and the outer surface of the end portion of the plug housing, the relative relationship when the two connectors mounted on the LED boards are fitted together is relative. The positional shift is absorbed efficiently.

  According to the present invention, it is possible to sufficiently absorb the displacement of the relative position when the two connectors mounted on each LED board are fitted, and to reduce the space required for mounting. It is possible to provide an electrical connection device for an LED substrate that can be realized.

It is a perspective view which shows the LED board electrically connected by the electrical connection apparatus for LED boards which concerns on one embodiment of this invention, and the electrical connection apparatus for LED boards. It is a perspective view which expands and shows the electrical connection apparatus for LED boards shown in FIG. 1, and its vicinity. It is a perspective view which shows the state by which the connection of the electrical connection apparatus for LED boards shown in FIG. 2 is cancelled | released. It is a perspective view which shows the 1st connector in the electrical connection apparatus for LED boards shown in FIG. It is a top view of the 1st connector shown in FIG. It is a front view of the 1st connector shown in FIG. It is a side view of the 1st connector shown in FIG. It is a bottom view of the 1st connector shown in FIG. It is sectional drawing seen from the AA arrow line position of FIG. It is sectional drawing seen from the BB line arrow position of FIG. 5, and sectional drawing seen from the CC line arrow position of FIG. It is a perspective view which shows the 2nd connector in the electrical connection apparatus for LED boards shown in FIG. It is a top view of the 2nd connector shown in FIG. It is a front view of the 2nd connector shown in FIG. It is a side view of the 2nd connector shown in FIG. It is a bottom view of the 2nd connector shown in FIG. It is sectional drawing seen from the DD arrow position of FIG. It is sectional drawing seen from the EE line arrow position of FIG. 12, sectional drawing seen from the FF line arrow position, and sectional drawing seen from the GG line arrow position. FIG. 3 is a perspective view showing a state in which a relative displacement when both connectors are fitted in the electrical connection device for an LED board shown in FIG. 2 is absorbed.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In addition, this invention can be widely applied to various uses as an electrical connection apparatus for LED boards which electrically connects LED boards as a board | substrate with which the LED chip was mounted.

  FIG. 1 shows an LED board electrical connection device 1 (hereinafter also simply referred to as “electrical connection device 1”) and an LED board (101) connected by the electrical connection device 1 according to an embodiment of the present invention. , 102). 2 is an enlarged perspective view showing the electrical connection device 1 shown in FIG. 1 and its vicinity. FIG. 3 is a perspective view showing a state in which the electrical connection device 1 shown in FIG. 2 is disconnected. 2 and 3, a part of the LED substrate (101, 102) is shown.

  The LED substrate (101, 102) illustrated in FIGS. 1 to 3 is provided as a rigid substrate that is formed in a flat plate shape, extends linearly, and has a longitudinal direction. As the LED substrate (101, 102), the LED substrate 101 constituting the first LED substrate of the present embodiment (hereinafter also referred to as “first LED substrate 101”) and the LED substrate 102 constituting the second LED substrate of the present embodiment. (Hereinafter also referred to as “second LED substrate 102”). Each of the LED substrates (101, 102) is configured as a substrate on which a plurality of LED chips 103 including LEDs (Light Emitting Diodes) are surface-mounted. The plurality of LED chips 103 are arranged in series along the longitudinal direction of each LED substrate (101, 102).

  The LED substrate (101, 102) is used in, for example, a lighting device, a display device, a backlight of a display device, or the like. Either one of the LED boards (101, 102) is connected to a power supply power supply board (not shown). Power is supplied from this power supply board to all the LED chips 103 on the LED boards (101, 102). The LED substrate 101 and the LED substrate 102 are electrically and mechanically connected by the electrical connection device 1.

  As shown in FIGS. 1 to 3, an electrical connection device 1 that electrically connects LED boards (101, 102) includes a pair of first connectors 11 (11 a, 11 b) and a pair of second connectors 12. (12a, 12b). The pair of first connectors 11 is mounted on the first LED substrate 101. The pair of second connectors 12 are mounted on the second LED substrate 102 connected to the first LED substrate 101 and connected to the pair of first connectors 11.

  2 shows a state in which the pair of first connectors 11 and the pair of second connectors 12 are connected, and FIG. 3 shows that the connection between the pair of first connectors 11 and the pair of second connectors 12 is released. It shows the state that was done. The pair of first connectors 11 includes a first connector 11 a and a first connector 11 b that are respectively mounted on the surface of the first LED substrate 101. The pair of second connectors 12 includes a second connector 12a and a second connector 12b that are mounted on the surface of the second LED substrate 102, respectively.

  When the pair of first connectors 11 and the pair of second connectors 12 are connected, the first connector 11a and the second connector 12a are connected, and the first connector 11b and the second connector 12b are connected. At this time, the first connector (11a, 11b) and the second connector (12a, 12b) are mechanically connected by fitting the first connector (11a, 11b) and the second connector (12a, 12b). And electrically connected. The first connector 11a and the second connector 12a correspond to one of the positive electrode and the negative electrode, and the first connector 11b and the second connector 12b correspond to the other of the positive electrode and the negative electrode.

  The first connector 11a and the first connector 11b are configured similarly. The first connector 11a and the first connector 11b are mounted on the first LED substrate 101 in the same form. For this reason, in the following description, the structure of one 1st connector 11a of the 1st connectors (11a, 11b) comprised similarly is demonstrated, and the description about the structure of the other 1st connector 11b is abbreviate | omitted. .

  FIG. 4 is a perspective view showing the first connector 11a. The perspective view of FIG. 4 shows the state of the first connector 11a viewed from an angle different from that in FIG. FIG. 5 is a plan view of the first connector 11a. FIG. 6 is a front view of the first connector 11a. 7 is a left side view (FIG. 7A) and a right side view (FIG. 7B) of the first connector 11a. FIG. 8 is a bottom view of the first connector 11a. 9 is a cross-sectional view as seen from the position of the arrows AA in FIG. 10 is a cross-sectional view (FIG. 10A) seen from the position of the arrow BB in FIG. 5 and a cross-sectional view seen from the position of the arrow CC in FIG. The first connector 11a shown in FIGS. 1 to 10 includes a first terminal 21, a first housing 22, a first fixing bracket 23, and the like.

  The first terminal 21 is provided as a conductive member that is electrically connected to a conductive portion provided as a circuit pattern on the surface of the first LED substrate 101 and is fixed to the first LED substrate 101. The first terminal 21 is formed by processing a plate-like member made of a metal material. For example, the first terminal 21 is made of a copper alloy. The surface of the first terminal 21 is subjected to a plating process such as tin plating or gold plating.

  The first terminal 21 has a main body installed so as to be elongated in a flat plate shape along a direction parallel to the surface of the first LED substrate 101 in a state where the first connector 11a is mounted on the surface of the first LED substrate 101. A portion 21a is provided (see FIGS. 5, 6, and 8 to 10). In the present embodiment, the main body portion 21a is configured such that the width dimension (dimension in the direction perpendicular to the longitudinal direction) changes at a plurality of positions in the middle of the longitudinal direction.

  And the 1st terminal 21 is provided with the connection end part 21b formed by bending in the one end part side in the longitudinal direction of the main-body part 21a (FIG. 5, FIG. 7-9). The connection end portion 21 b is provided as an end portion connected to the conductive portion of the first LED substrate 101 in the first terminal 21. That is, the connection end portion 21 b is electrically connected to the conductive portion of the first LED substrate 101 and fixed to the first LED substrate 101 by soldering.

  Further, the first terminal 21 is provided with a contact portion 21c that protrudes in an elongated plate shape along the longitudinal direction of the main body portion 21a on the other end side in the longitudinal direction of the main body portion 21a (FIG. 4, FIG. (See FIGS. 5 and 9). The contact portion 21c is provided as a portion that is electrically connected to a later-described second terminal 31 in the second connector 12a when the first connector 11a is connected to the second connector 12a. The first terminal 21 has the first connector 11a mounted on the first LED board 101, and the contact part 21c and the main body part 21a have a contact part 21c side along a direction parallel to the surface of the first LED board 101. It installs in the 1st LED board 101 so that it may protrude toward. Thereby, the 1st terminal 21 is cantilevered along the fitting direction of the 1st housing 22 of the 1st connector 11a, and the 2nd housing 32 of the 2nd connector 12a mentioned below to the 1st LED board 101. It is supported so as to protrude and bendable.

  The 1st housing 22 is comprised as an element holding the 1st terminal 21, and is provided as a plug housing in this embodiment. The first housing 22 provided as a plug housing includes a plurality of housing members (24, 25) that hold the first terminals 21 and are separately formed (see FIGS. 4 to 10). reference). Further, the first housing 22 provided as a plug housing is provided so as to be able to bend together with the first terminal 21 with respect to the first LED substrate 101.

  The plurality of housing members (24, 25) in the first housing 22 are formed of a resin material that is an insulating material, and are provided as block-shaped members. As a resin material for forming the housing members (24, 25), for example, materials such as LCP (Liquid Crystal Polymer) and PA (Polyamide, Polyamide) can be used. Further, at the time of molding the housing members (24, 25), simultaneous molding in which the first terminals 21 are integrated is performed. As a result, the first terminals 21 are integrated and held in the housing members (24, 25).

  In this embodiment, the connection side housing member 24 and the front end side housing member 25 are provided as the plurality of housing members (24, 25). The connection-side housing member 24 is provided as a housing member that covers a part of the first terminal 21 on the connection end 21 b side of the first terminal 21. The distal end side housing member 25 is provided as a housing member that covers a part of the first terminal 21 at the distal end side that is the end portion side protruding in a cantilever manner in the first terminal 21.

  The connection side housing member 24 and the distal end side housing member 25 are installed in series along the longitudinal direction of the first terminal 21. The connection-side housing member 24 and the tip-side housing member 25 are both directly fixed to the first terminal 21, and are connected to the first LED substrate 101 via the first terminal 21. It is supported. The connection-side housing member 24 and the distal-end-side housing member 25 are opposed to each other through the space 26 at their adjacent ends.

  Further, the connection end 21 b of the first terminal 21 is exposed from the end of the connection side housing member 24 opposite to the side facing the distal end side housing member 25. Further, the distal end side housing member 25 is provided with a main body portion 25a formed in a block shape and a protruding portion 25b protruding from the main body portion 25a in a cantilever manner along the longitudinal direction of the first terminal 21. Yes.

  The protrusion 25b protrudes from the end of the main body 25a opposite to the side facing the connection-side housing member 24 with respect to the main body 25a. And the contact part 21c in the 1st terminal 21 is hold | maintained at the protrusion part 25b. The contact portion 21c is installed with respect to the protruding portion 25b in a state of being exposed on the opposite side of the protruding portion 25b from the side facing the first LED substrate 101. The contact portion 21c is in contact with and electrically connected to the second terminal 31 of the second connector 12a in the exposed portion. In the present embodiment, the contact portion 21c is installed in a partially exposed state on the protruding portion 25b on the side of the protruding portion 25b facing the first LED substrate 101.

  The first fixing bracket 23 is configured as a member that is provided as a separate metal member from the first terminal 21 and is fixed to the first LED substrate 101. This 1st fixing metal fitting 23 is formed by processing the plate-shaped member comprised with the metal material, for example, is comprised using copper alloy as a raw material. The surface of the first fixing bracket 23 is subjected to a plating process such as tin plating.

  Moreover, the side wall part 23a, the fixing | fixed part 23b, and the latching protrusion 23c which were formed integrally are provided in the 1st fixing metal fitting 23 (refer FIGS. 4-6, FIGS. 8-10). . The side wall portions 23 a are arranged on both sides in the direction orthogonal to the longitudinal direction of the first terminals 21 with respect to the main body portion 25 a in the distal end side housing member 25 of the first housing 22. And the side wall part 23a is provided as a pair of wall-shaped part extended in parallel along the wall surface of the both sides of the main-body part 25a.

  The fixing portion 23b is configured as a portion that is fixed to the first LED board 101 in the first fixing bracket 23, and is provided so as to bridge and connect the side wall portions 23a that are arranged in pairs on both sides of the main body portion 25a. It has been. The fixing portion 23b is formed as a pair of elongated plate-like portions extending in parallel so as to connect the pair of side wall portions 23a, and is disposed on the first LED substrate 101 side with respect to the main body portion 25a. And the 1st fixing bracket 23 is fixed with respect to the 1st LED board 101 by soldering the fixing | fixed part 23b with respect to the 1st LED board 101. FIG. Each side wall part 23a formed by being bent with respect to the fixing part 23b is provided so as to extend in a direction substantially orthogonal to the fixing part 23b.

  In addition, each side wall 23a is provided with an open region penetrating and formed in a hole shape in the central portion. And in the 1st fixing bracket 23, the latching protrusion 23c is provided so that it protrudes in a cantilever shape toward the open area | region inside each side wall part 23a from each side wall part 23a. A pair of locking projections 23c are provided corresponding to the respective side wall portions 23a. Each locking projection 23c is directed from the end of each side wall portion 23a opposite to the fixing portion 23b side toward the fixing portion 23b and slightly inward of the first fixing fitting 23 (main body portion 25a). It protrudes diagonally toward the side).

  Further, recessed grooves 25c are respectively provided on the side surfaces of the main body portion 25a of the distal end side housing member 25 facing the side wall portions 23a. Each locking groove 25c is recessed toward the inner side of the main body portion 25a on each wall surface of the main body portion 25a facing each side wall portion 23a, and opens on the opposite side to the first LED substrate 101 side. It is formed so as to have an end face. And the edge part of the front end side which protrudes in each latching protrusion 23c of the 1st fixing | fixed metal fitting 23 is contact | abutted with respect to said end surface in each latching groove 25c, and is arrange | positioned so that latching is possible. Further, as well shown in FIG. 6, a gap as a mechanical play portion is set between the end portion on the tip side of each locking projection 23c and the above end surface of each locking groove 25c. Yes.

  As described above, the first fixing bracket 23 is fixed to the first LED substrate 101 at the fixing portion 23 b and is not fixed to the first housing 22. Then, the first housing 22 is bent together with the first terminal 21, and the distal end side housing member 25 is displaced to a position where there is no gap between the end of the locking projection 23c and the end surface of the locking groove 25c. The amount of displacement of the front end side housing member 25 is regulated by the locking of the stop protrusion 23c and the locking groove 25c. In other words, the first connector 11 a is configured such that a movable range in which the distal end side housing member 25 is relatively displaceable with respect to the first LED substrate 101 is regulated by the first fixing bracket 23. .

  Next, the second connectors (12a, 12b) will be described. The second connector 12a and the second connector 12b are configured similarly. The second connector 12a and the second connector 12b are mounted on the second LED board 102 in the same form. Therefore, in the following description, the configuration of one second connector 12a among the second connectors (12a, 12b) configured similarly will be described, and the description of the configuration of the other second connector 12b will be omitted. .

  FIG. 11 is a perspective view showing the second connector 12a. FIG. 12 is a plan view of the second connector 12a. FIG. 13 is a front view of the second connector 12a. FIG. 14 is a left side view (FIG. 14A) and a right side view (FIG. 14B) of the second connector 12a. FIG. 15 is a bottom view of the second connector 12a. 16 is a cross-sectional view as seen from the position of the arrow D-D in FIG. 17 is a cross-sectional view (FIG. 17A) viewed from the position of the arrow EE in FIG. 12, a cross-sectional view viewed from the position of the arrow FF (FIG. 17B), and G It is sectional drawing seen from the-G line arrow position (FIG.17 (c)). The second connector 12a shown in FIGS. 1 to 3 and 11 to 17 includes a second terminal 31, a second housing 32, a second fixture 33, and the like.

  The second terminal 31 is provided as a conductive member that is electrically connected to a conductive portion provided as a circuit pattern on the surface of the second LED substrate 102 and is fixed to the second LED substrate 102. The second terminal 31 is formed by processing a plate-like member made of a metal material. For example, the second terminal 31 is made of a copper alloy. The surface of the second terminal 31 is subjected to a plating process such as tin plating or gold plating.

  Further, the second terminal 31 has a main body installed so as to be elongated in a flat plate shape along a direction parallel to the surface of the second LED substrate 102 with the second connector 12a mounted on the surface of the second LED substrate 102. A portion 31a is provided (see FIGS. 11, 12, 16, and 17). In the present embodiment, the main body portion 31a is configured such that the width direction dimension (direction perpendicular to the longitudinal direction) changes at a plurality of positions in the middle of the longitudinal direction. In addition, a pair of projecting portions (31d, 31d) projecting on both sides in the width direction are provided in the middle portion in the longitudinal direction of the main body portion 31a. The second terminal 31 is firmly integrated and held with respect to the second housing 32 at the protruding portion 31d.

  The second terminal 31 is provided with a connection end portion 31b formed by bending on one end side in the longitudinal direction of the main body portion 31a (FIGS. 12 to 17). The connection end portion 31 b is provided as an end portion connected to the conductive portion of the second LED substrate 102 in the second terminal 31. That is, the connection end portion 31 b is electrically connected to the conductive portion of the second LED substrate 102 by soldering and is fixed to the second LED substrate 102.

  In addition, the second terminal 31 is configured as a portion protruding along the longitudinal direction of the main body portion 31a on the other end side in the longitudinal direction of the main body portion 31a and at approximately 180 ° with respect to the main body portion 31a. A contact portion 31c configured to have a bent portion is provided (see FIGS. 11, 12, and 14 to 17). The contact portion 31c is provided as a portion that is electrically connected to the contact portion 21c of the first terminal 21 in the first connector 11a when the second connector 12a is connected to the first connector 11a. Note that the contact portion 31c of the second terminal 31 is a portion facing the first and second LED substrates (101, 102), and the first and second LED substrates (101, 102) in the contact portion 21c of the first terminal 21. ) Abuts against the part opposite to the side opposite to. Thereby, the 1st terminal 21 and the 2nd terminal 31 are electrically connected.

  The second housing 32 shown in FIGS. 11 to 17 is configured as an element that holds the second terminal 31. And the 2nd housing 32 is formed with the resin material which is an insulating material, and is provided as a block-shaped member. As a resin material for forming the second housing 32, for example, a material such as LCP (Liquid Crystal Polymer) or PA (Polyamide, Polyamide) can be used. At the time of molding the second housing 32, simultaneous molding is performed in which the second terminals 31 are integrated. As a result, the second terminal 31 is integrated and held in the second housing 32.

  Moreover, in this embodiment, the 2nd housing 32 is provided as a receptacle housing provided with the opening 32a in which the protrusion part 25b which is an edge part of the 1st housing 22 as a plug housing is inserted. The 2nd housing 32 will be in the state which the 1st housing 22 fitted by inserting the protrusion part 25b in the opening 32a. And the 1st housing 22 and the 2nd housing 32 fit in this way, and the 1st terminal 21 and the 2nd terminal 31 are electrically connected.

  Further, the opening 32a of the second housing 32 opens the inner side of the second housing 32 from the end surface side where the first housing 22 is fitted to the end surface side facing the second LED substrate 102 in the second housing 32. It is provided as a recessed area in which an opening is formed. In the recessed area inside the opening 32a, the contact portion 31c of the second terminal 31 that contacts the first terminal 21 is exposed. The form of the opening provided in the second housing is not limited to the form of the opening 32a described above, and may be variously changed. For example, the opening formed in the hole shape in the cylinder shape may be provided in the second housing.

  In the first and second connectors (11a, 12a), the outer surface of the end of the first housing 22 as the plug housing inserted into the opening 32a in the second housing 32 as the receptacle housing is the inner surface of the opening 32a. It is comprised so that it may oppose through a clearance gap. That is, regarding the dimension in the direction perpendicular to the fitting direction of the first housing 22 and the second housing 32, the dimension of the opening 32a of the second housing 32 is larger than the dimension of the protruding portion 25a of the first housing 22. So that it is set.

  Further, the second housing 32 is formed with a through hole 32b penetrating the wall surface on the end surface opposite to the side facing the second LED substrate 102. And in the area | region inside the 2nd housing 32 and facing the through-hole 32b, it is fixed to the 2nd LED board 102 by the connection end part 31b, and is fixed to the 2nd housing 32 by the protrusion part 31d, and is cantilevered. An end of the second terminal 31 supported on the side opposite to the connection end 31b is disposed. For this reason, the area | region which accept | permits that the 2nd terminal 31 is elastically deformed and bent so that there exists an effect | action similar to a leaf | plate spring is ensured by the through-hole 32b. And when the contact part 21c of the 1st terminal 21 and the contact part 31c of the 2nd terminal 31 contact | abut, the spring force as a leaf | plate spring of the 2nd terminal 31 arises, and the 1st terminal 21 and the 2nd terminal Thus, the electrical connection 31 is more firmly secured.

  The second fixing bracket 33 is provided as a metal member separate from the second terminal 31 and fixed to the second LED substrate 102, and the second housing 32 provided as a receptacle housing is attached to the second LED substrate 102. It is comprised as a member hold | maintained with respect. The second fixing bracket 33 is formed by processing a plate-like member made of a metal material, and is made of, for example, a copper alloy as a material. The surface of the second fixing bracket 33 is subjected to a plating process such as tin plating.

  The second fixing bracket 33 is provided as a pair of members formed as separate metal members. Each of the second fixing brackets 33 is provided as a plate-like member, and is fixed integrally to the second housing 32 at both side wall portions in the direction orthogonal to the longitudinal direction of the second terminal 31. ing. Further, the pair of second fixing fittings (33, 33) are incorporated in the wall portion of the second housing 32 at positions where both sides of the opening 32a are reinforced. That is, the second fixing bracket 33 is configured to function as a reinforcing bracket that reinforces a region in the second housing 32 in the vicinity of the opening 32a. In the present embodiment, when the second housing 32 is molded, simultaneous molding is performed in which the second fixing fitting 33 is integrated with the second terminal 31. As a result, in addition to the second terminal 31, the second fixing bracket 33 is also integrated and held in the second housing 32.

  In addition, the second fixing bracket 33 is provided with a fixing portion 33 a that is a portion fixed to the second LED substrate 102 at an end portion in contact with the second LED substrate 102. The fixing portion 33a is soldered to the second LED substrate 102, whereby the second fixing bracket 33 is fixed to the second LED substrate 102.

  In the first connector (11a, 11b), the first terminal 21 and the first fixture 23 are provided as separate metal members. In the second connector (12a, 12b), the second terminal 31 and the second fixture 33 are provided as separate metal members. Thereby, an insulation distance between the first terminal 21 and the second terminal 31 and a metal heat sink as a heat dissipation structure to which the first and second LED substrates (101, 102) are attached is sufficiently secured. Is set. That is, in the electrical connection device 1, the first and second fixing brackets (23, 33) installed at positions near the edge of the LED substrate (101, 102), which is a position where the insulation distance from the heat sink is smaller. Thus, the first and second terminals (21, 31) are separately installed, so that an insulation distance from the heat sink can be easily secured.

  Next, the operation of the electrical connection device 1 described above will be described. When the first LED substrate 101 and the second LED substrate 102 are connected by the electrical connection device 1, first, the pair of first connectors 11 (11a, 11b) is mounted on the first LED substrate 101, and the second LED A pair of second connectors 12 (12a, 12b) is mounted on the substrate 102 (see FIG. 3).

  At this time, the connection portion 21b of the first terminal 21 in each of the first connectors (11a, 11b) is soldered to the first LED substrate 101, and the first connectors (11a, 11b) are mounted. And the 1st fixing bracket 23 attached to the front end side housing member 25 of the 1st housing 22 so that latching is possible is fixed with respect to the 1st LED board 101 by soldering in the fixing | fixed part 23b.

  On the other hand, the connection part 31b of the 2nd terminal 31 in each of the 2nd connector (12a, 12b) is soldered with respect to the 2nd LED board 102, and the 2nd connector (12a, 12b) is mounted. And the 2nd fixing metal fitting 33 integrated with the 2nd housing 32 is fixed with respect to the 2nd LED board 102 by soldering in the fixing | fixed part 33a.

  When the first connector (11a, 11b) and the second connector (12a, 12b) are mounted on the first and second LED boards (101, 102), the connection work between the first LED board 101 and the second LED board 102 is performed. Is called. At this time, the protrusion 25b of the first connector 11a is inserted into the opening 32a of the second connector 12a, and the protrusion 25b of the first connector 11b is inserted into the opening 32a of the second connector 12b. That is, the first housing 22 of the first connector 11a is fitted into the second housing 32 of the second connector 12a, and the first housing 22 of the first connector 11b is fitted into the second housing 32 of the second connector 12b. Thereby, the 1st terminal 21 of the 1st connector 11a and the 2nd terminal 31 of the 2nd connector 12a are electrically connected, and the electrical and mechanical connection of the 1st connector 11a and the 2nd connector 12a is completed. And the 1st terminal 21 of the 1st connector 11b and the 2nd terminal 31 of the 2nd connector 12b are electrically connected, and the electrical and mechanical connection of the 1st connector 11b and the 2nd connector 12b is completed. As described above, the connection operation between the first LED substrate 101 and the second LED substrate 102 is completed.

  FIG. 18 is a perspective view showing a state in which a relative positional shift when both connectors (11a and 12a, 11b and 12b) are fitted in the electrical connection device 1 shown in FIG. 2 is absorbed. FIG. 3 is a perspective view showing a state seen from a direction different from FIG. 2. In the state where the connection work of the first and second LED substrates (101, 102) is completed, as shown in FIG. 18, in the first connector 11a and the second connector 12a, and the first connector 11b and the second connector 12b, There may be a relative misalignment during fitting. In this case, in the electrical connection device 1, the first terminal 21 in the first connector (11 a, 11 b) and the distal end side housing 25 of the first housing 22 are electrically connected to the first terminal 21 and the second terminal 31. The connection is maintained and the protrusion 25b is bent while being fitted in the opening 32a. Thereby, in the electrical connection apparatus 1, the relative position shift at the time of both the connectors (11a and 12a, 11b and 12b) fitting is absorbed.

  As described above, according to the electrical connection device 1, the first connectors (11 a, 11 b) are electrically connected and fixed to the first LED substrate 101 at the first terminals 21. On the other hand, the second connectors (12a, 12b) are electrically connected and fixed to the second LED substrate 102 at the second terminals 31 thereof. And in the 1st and 2nd connector (11a, 11b, 12a, 12b), the 1st terminal 21 fixed to the 1st LED board 101 is along the fitting direction of the 1st and 2nd housing (22, 32). And cantilevered so as to be cantilevered. For this reason, the relative position shift when both the connectors (11a and 12a, 11b and 12b) mounted on each LED board (101, 102) are fitted cantilevered along the fitting direction. The first terminal 21 protruding in a shape is absorbed by bending and the electrical connection is maintained.

  In addition, the first terminal 21 that maintains the electrical connection by absorbing the relative displacement between the connectors (11a and 12a, 11b and 12b) is the fitting direction of the connectors (11a and 12a, 11b and 12b). Therefore, the relative displacement between the connectors (11a and 12a, 11b and 12b) can be efficiently and sufficiently absorbed in a compact space. As a result, the structure of the terminal that absorbs the relative misalignment when both connectors (11a and 12a, 11b and 12b) are fitted is greatly downsized, and the space required for mounting is reduced. Can do. In other words, the LED board electrical connection device 1 does not have an elastic structure portion that occupies a relatively large space in the connector because it has a plurality of bent portions as in the prior art. As a result, significant space saving is achieved.

  Therefore, according to the present embodiment, the relative positional deviation when the connectors (11a and 12a, 11b and 12b) mounted on the LED boards (101 and 102) are fitted is sufficiently absorbed. In addition, it is possible to provide the LED board electrical connecting device 1 that can reduce the space required for mounting.

  Further, according to the electrical connecting device 1, the first housing 22 as the plug housing that fits into the second housing 32 as the receptacle housing holds the first terminal 21 protruding so as to be able to bend, and is formed in a plurality of separately. Housing members (24, 25). For this reason, the first connector (11a, 11b) configured to include the first terminal 21 and the plug housing (first housing 22) is more at the place where the plug housing (first housing 22) is separated. The structure is easy to bend. Thereby, the plug housing (first housing 22) has a structure that can more easily absorb the relative positional deviation when the connectors (11a and 12a, 11b and 12b) mounted on the LED board are fitted. Can be easily constructed by separating and forming.

  In addition, according to the electrical connection device 1, since the connection-side housing member 24 and the distal-side housing member 25 are separated, even when the distal-side housing member 25 is displaced together with the distal end side of the first terminal 21. Thus, a structure in which the influence of the displacement of the distal end side housing member 25 is difficult to be transmitted to the connection side housing member 24 is constructed. Therefore, it is possible to easily realize a connector structure in which a load hardly acts on a portion of the first terminal 21 connected to the conductive portion of the first LED substrate 101. In addition, according to the present embodiment, the first connectors (11a, 11b) are attached to the first LED board 101 by the first fixing bracket 23 that is separate from the first terminals 21, and therefore the first connectors (11a, 11b). ) Can be more firmly attached to the first LED substrate 101. And since the 1st fixing bracket 23 regulates the movable range of the front end side housing member 25, it can prevent that the 1st terminal 21 deform | transforms excessively with the front end side housing member 25. FIG.

  Further, according to the electrical connection device 1, the relative positional deviation when the two connectors (11a and 12a, 11b and 12b) mounted on the LED boards (101, 102) are fitted is the first. Even in the plug housing (first housing 22) that bends together with the first terminal 21 with respect to the 1LED substrate 101, it is efficiently absorbed.

  Further, according to the electrical connection device 1, the second connector (12 a, 12 b) is fixed to the second LED substrate 102 by the second fixing bracket 33, which is separate from the second terminal 31. 12a, 12b) can be more firmly attached to the second LED substrate 102. Further, since the second fixing fitting 33 is provided around the opening 32a in the second housing 32 as the receptacle housing, the fitting portion between the plug housing (first housing 22) and the receptacle housing (second housing 32) is provided. The strength can be improved.

  Further, according to the electrical connection device 1, each LED is also provided in a compact gap space between the inner surface of the opening 32a of the receptacle housing (second housing 32) and the outer surface of the end portion of the plug housing (first housing 22). A relative positional shift when both connectors (11a and 12a, 11b and 12b) mounted on the board (101, 102) are fitted is efficiently absorbed.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, the following modifications may be made.

(1) In the above-described embodiment, the first connector and the second connector have been described as an example in which each pair is provided as a pair. A form in which the first connector and the second connector are provided in pairs may be implemented.

(2) In the above-described embodiment, the pair of first connectors are mounted on the same LED board and the pair of second connectors are mounted on the same LED board. It may not be the street. For example, one of the pair of first connectors is mounted on one of the LED boards connected to each other, and the other of the pair of first connectors is mounted on the other of the LED boards connected to each other. May be. In this case, one of the pair of second connectors is mounted on the other of the LED boards connected to each other, and the other of the pair of second connectors is mounted on one of the LED boards connected to each other. Will be implemented. And in said one 1st connector and the other 1st connector, the LED board corresponding as a 1st LED board of this invention differs from each other. Similarly, in said one 2nd connector and the other 2nd connector, the LED board corresponding as a 2nd LED board of this invention differs from each other.

(3) In the above-described embodiment, the first terminal is supported by the first LED board in a cantilevered manner along the fitting direction of the first and second housings so as to be bent. Although explained, this need not be the case. It is sufficient that at least one of the first terminal and the second terminal protrudes in a cantilevered manner along the fitting direction of the first and second housings and is supported so as to be able to bend with respect to the LED substrate. . For example, the first and second terminals are both cantilevered along the fitting direction of the first and second housings with respect to the first and second LED boards and supported so as to be deflectable. May be.

(4) In the above-described embodiment, the first housing is provided as a plug housing and the second housing is provided as a receptacle housing. However, this need not be the case. A form in which the second housing is provided as a plug housing and the first housing is provided as a receptacle housing may be implemented. Moreover, the form provided with the plug part and receptacle part which mutually fit in both the 1st housing and the 2nd housing may be implemented.

(5) The shape of each of the first housing, the first terminal, the first fixing bracket, the second housing, the second terminal, and the second fixing bracket is not limited to the shape illustrated in the above-described embodiment, and various changes may be made. May be implemented.

  The present invention can be widely applied as an electrical connection device for LED substrates that electrically connects LED substrates as substrates on which LED chips are mounted.

DESCRIPTION OF SYMBOLS 1 LED board electrical connection apparatus 11a, 11b 1st connector 12a, 12b 2nd connector 21 1st terminal 22 1st housing 31 2nd terminal 32 2nd housing 101 1st LED board (LED board)
102 Second LED board (LED board)

Claims (6)

An LED board electrical connection device for electrically connecting LED boards as a board on which LED chips are mounted,
A first connector mounted on the first LED substrate provided as the LED substrate;
A second connector mounted on the second LED substrate provided as the LED substrate electrically connected to the first LED substrate and connected to the first connector;
With
Wherein the first connector is one of a first terminal is secured to said first 1LED substrate while being electrically connected to the conductive portion of the first 1LED substrate, a first housing that holds the first terminal, Have
Said second connector, one and a second terminal which is fixed to the first 2LED substrate while being electrically connected to the conductive portion of the first 2LED substrate, and a second housing that holds the second terminal, Have
By fitting the first housing and the second housing, the first terminal and the second terminal are electrically connected,
At least one of the one first terminal in the first connector and the one second terminal in the second connector is fitted into the LED substrate with respect to the first housing and the second housing. An electrical connection device for an LED board, wherein the electrical connection device for an LED board is supported so as to be deflectable by projecting in a cantilever shape along the alignment direction. It is the electrical connection apparatus for LED boards of Claim 1, Comprising:
The first housing is provided as a plug housing, the second housing is provided as a receptacle housing provided with an opening into which an end of the plug housing is inserted,
The first terminal is supported in a cantilevered manner in a cantilevered manner along the fitting direction with respect to the first LED substrate,
The electrical connection device for an LED board, wherein the plug housing has a plurality of housing members that hold the first terminals and are separately formed. It is the electrical connection apparatus for LED boards of Claim 2, Comprising:
The first connector further includes a first fixing fitting provided as a metal member separate from the first terminal and fixed to the first LED substrate,
As the plurality of housing members, a connection-side housing member that covers a part of the first terminal on a connection end side that is an end side connected to the conductive portion of the first LED substrate in the first terminal; A tip-side housing member that covers a part of the first terminal on the tip side, which is the end portion side protruding in a cantilever manner in one terminal,
An electric connection device for an LED board, wherein a movable range in which the distal end side housing member is relatively displaceable with respect to the first LED board is restricted by the first fixing bracket. The electrical connection device for an LED substrate according to claim 2 or 3,
The said plug housing is provided with respect to a said 1st LED board so that bending with the said 1st terminal is possible, The electrical connection apparatus for LED boards characterized by the above-mentioned. It is an electrical connection apparatus for LED boards of any one of Claims 2 thru | or 4, Comprising:
The second connector is provided as a metal member separate from the second terminal and is fixed to the second LED board, and a second fixing bracket for holding the receptacle housing to the second LED board. And an electrical connection device for an LED substrate. It is the electrical connection apparatus for LED boards of any one of Claim 2 thru | or 5, Comprising:
An electrical connection device for an LED board, wherein an outer surface of an end portion of the plug housing inserted into the opening in the receptacle housing is opposed to an inner surface of the opening through a gap.

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