JP3501906B2 - Electrical connection device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric component and a power source,
Alternatively, in a device that connects electrical components to each other via an electric wire of a wire harness, in particular, a wiring member that forms a branch conductive path and a printed circuit board on which an electronic component is mounted are provided, and these are connected to each other. The present invention relates to an electrical connection device in which a circuit for connecting electrical components and the like is configured by incorporating a circuit of a printed circuit board in a branch conductive path.

[0002]

2. Description of the Related Art Conventionally, as a device for connecting electrical components to each other via electric wires of a wire harness, for example,
An electric connecting device as disclosed in Japanese Patent Publication No. 62-9988 is known.

This device comprises a wiring board (wiring member) in which branch conductive paths are formed by bus bar wiring, and a printed board on which a large number of electronic components are mounted and which is connected to the wiring board. The wiring board is provided with a large number of connector terminals connected to the branch conductive paths, and the terminals of the electric wires of the wire harness are connected to these terminals.

On the other hand, in the above-mentioned wiring board, the end portions of the busbars are gathered and arranged at one place on the wiring board and are raised, whereby a contact portion to the printed circuit board side is formed and the contact of these is made. Relay terminals, each having a substantially horizontal receiving port, are detachably mounted, and the printed circuit board and the wiring board are three-dimensionally mounted in parallel with each other, so that terminals protruding from the end of the printed circuit board are provided. Are inserted into the respective receiving ports and the printed circuit board is connected to the wiring board through the relay terminals.

By connecting the printed circuit board to the wiring board in this way, the circuit of the printed circuit board is incorporated in the branch conductive path of the wiring board, and a circuit for connecting the electrical components to each other is constructed. It has become so.

[0006]

However, in the conventional device as described above, when the number of terminals of the printed circuit board increases, the insertion force of the printed circuit board into the relay terminal increases, which causes the wiring board and the printed circuit board to be separated from each other. However, there is a problem that connection work becomes difficult.

Particularly, in the case of a structure in which a plurality of printed boards are connected to a single wiring board, if all the printed boards are integrally connected to the wiring board, an excessive force is required for the connection. The work becomes difficult, and on the other hand, connecting the printed boards one by one is inefficient, and in any case, it causes a situation unfavorable in manufacturing.

The present invention has been made in order to solve the above problems, and provides an electrical connection device capable of appropriately and easily connecting a wiring member having a branch conductive path to a printed circuit board. Is intended.

[0009]

An electrical connecting device according to the present invention comprises a printed circuit board, and the printed circuit board is connected to an electric wire of a wire harness through a wiring member having a branch conductive path. A first unit fixedly supporting the printed circuit board in a case, and a second unit assembled to the first unit in a fixed positional relationship,
It consists of auxiliary means to assist the assembly of both units,
The second unit is a sheet-shaped flexible wiring member as the wiring member in which the branch conductive path is formed by printed wiring, and is fixed to the flexible wiring member to connect the wiring member and the wire harness. A harness connecting member, a wiring member, and a board connecting member for directly connecting the printed board to each other are provided, and the board connecting member and the printed board are connected by both units being assembled together. A relative position between the board connecting member and the printed board is set, and the board connecting member is displaceably held with respect to the second unit in a direction orthogonal to a connecting direction to the printed board, The above-mentioned auxiliary means applies a force in a direction in which each unit is brought close to each other to promote connection between the board connecting member and the printed board. In which are configured to.

According to this device, the second unit is provided in the first unit.
When the unit is assembled, the flexible wiring member of the second unit and the printed circuit board of the first unit are connected to each other through the board connecting member, and the circuit of the printed circuit board is incorporated in the branch conductive path of the flexible wiring member.
Then, when assembling the second unit to the first unit as described above, a force that brings the two units closer to each other is applied by the auxiliary means, whereby the substrate connecting member and the printed circuit board are easily connected.

In such a structure, the above-mentioned auxiliary means is
A lever member that is swingably supported by one of the units and that is provided so as to be engageable with the other unit,
The lever is constituted by a guide mechanism that causes the units to approach each other and amplifies the force that causes the units to approach each other as the lever swings in the engaged state with the other unit (claim 2). By swinging the members, the units can be quickly and properly assembled with a small force.

In particular, in the apparatus of claim 2, a lever member swingably mounted on one of the units, a pin member projecting on the other unit, and both units are assembled in a mutually assembled direction. And a guide means for guiding the lever member, and the lever member includes a cam portion at a base end portion and a lever body portion integrally provided with the cam portion, and the cam portion is supported by the unit via a fulcrum shaft. And a cam groove that is located between the fulcrum shaft and the lever main body, has a start end opening to the edge of the cam part, and a distance from the fulcrum shaft that gradually decreases toward the end. If the pin member is formed so as to be interposed in the cam groove (claim 3), it is possible to preferably obtain the above-described action and effect.

Further, in the apparatus according to claim 2 or 3, when an opening portion for exposing the printed circuit board to the outside is provided in the case of the first unit and the lever member is attached to the second unit, both units are provided. If the lever member is formed so as to close the opening of the case when the assembly is completed (claim 4), the lever member can be shared as a part of the case, so that a rational configuration can be achieved. It will be possible.

On the other hand, in the apparatus of claim 1, the bolt member is rotatably held in the unit on one side, while the nut member is fixed to the unit on the other side in correspondence therewith, and the bolt to the nut member is fixed. By constructing the auxiliary means so as to bring the two units closer to each other by screwing the members (Claim 5), it is possible to easily and properly assemble the units with a simple structure. Become.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

1 to 3 schematically show an example of the electrical connecting device according to the present invention. The electrical connecting device shown in this figure is a joint box 10 (hereinafter referred to as J / B10) mounted on an automobile, and various electrical components mounted on the vehicle are connected to each other via electric wires of a wire harness.
By connecting to / B10, the electric components are connected to each other.

The J / B 10 is, as shown in these figures,
The substrate container 12 (first unit) and the connecting portion main body 14 (second unit) fitted and attached to the substrate container 12 are configured.

The board housing 12 houses a plurality of printed boards P (hereinafter abbreviated as boards P) on which chip parts and the like are mounted in a case 16 that opens upward and forward. The substrates P are held in parallel with each other via the spacers 21 and 22 at a constant interval, and the edge portions serving as the connecting portions to the connecting portion main body 14 are respectively attached to the case 1
6 is stored in the case 16 in a state of facing the opening 17a at the front (left in FIG. 3; that is, the mounting portion side of the connecting portion main body 14).

In each side wall 16a of the case 16, a guide groove 1 having a starting end opening forward and extending horizontally is provided.
8 is formed, and a cam pin 20 (pin member) protruding toward the side of the case is formed behind the end of the guide groove 18.

On the other hand, the connection body 14 has a connector 24 for the electric wire of the wire harness and a connector 36 for the board P.
Is integrally held on the support 26, and the support 2
4, a lever 50 that also functions as a case cover that closes the opening 17b above the case 16 is swingably supported. The connector 36 is adapted to be connected to the board P by fitting and mounting the connecting portion main body 14 in the board housing 12.

The support 26 is the opening 1 of the case 16.
7a has a plate-shaped main body 27a, and the connector 24 is provided on one side (the left side in FIG. 3) of the main body 27a.
To hold the connector 36 on the other side.

The connector 24 has a plurality of sockets 29 on one side (left side in FIG. 3) of a rectangular base portion 28, and terminals 30 fixed to the base portion 28 are projected into the respective sockets 29. The support 26 is held by the support 26 in a state of being interposed between the side walls 27b formed at both ends of the support 26 in the width direction (both ends in the direction orthogonal to the paper surface in FIG. 3). Specifically, the hooks 25 formed on both ends of the base of the connector 24 are connected to the side walls 27b through the locking holes 31.
The connector 24 is held by the support member 26 by being locked to the support member 26.

On the other hand, a partition wall 27c extending substantially horizontally is provided on the other side of the support body 26 so as to project from the main body 27a, so that the other side of the support body 26 sandwiches the partition wall 27c and a pair of upper and lower connector holding portions 32a, The connector 36 is divided into 32b, and the connector holding portions 32a and 32b hold the connectors 36, respectively.

Each of the connectors 36 is the case 1 described above.
It is provided so as to correspond to each of the substrates P housed in the substrate 6, and each is directly connected to the edge portion of the substrate P.

More specifically, the edge of each substrate P facing the opening 17a of the case 16 is divided into a plurality of partition pieces Pa having a predetermined width as shown in FIG. On the surface (upper surface) of Pa, a large number of contact portions Pb formed by exposing a part of the printed wiring on the surface are formed side by side.
On the other hand, the connector 36 is provided with each of the partition pieces P of the board P.
A plurality of accommodating portions 38 capable of receiving a are formed in the width direction, and a plurality of terminals 40 corresponding to the contact portions Pb are accommodated side by side in the accommodating portions 38. Each terminal 40
As shown in FIG. 6, a female terminal having a U-shaped cross section, which includes a receiving portion 42 capable of receiving the partition Pa of the substrate P and a spring-shaped contact piece 44 projecting into the receiving portion 42. It is said that. That is, in the state where the board container 12 and the connection body 14 are fitted, each partition piece Pa of the board P is formed.
Is inserted into the corresponding housing portion 38, and the partition piece Pa becomes the terminal 4
0 in the receiving part 42 and contacting each contact part P
The contact piece 44 is pressed against b, whereby the connector 36 is connected to the substrate P. A taper surface is formed at the entrance of the receiving portion 42 of each terminal 40, so that the partition piece Pa can be easily received.

As shown in FIG. 3, each connector 36 has a flange portion 37 formed at one end thereof to be engaged with a locking hook 34 projecting from each of the connector holding portions 32a and 32b. It is held by the support 26. The locking hook 34 includes the connector holding portions 32a and 32b.
A pair is provided on both sides in the width direction, and a pair is provided above and below the center portion in the width direction, and the respective connectors 36 are held by these four locking hooks 34. As shown in FIG. 4, a gap L is provided between the flange portion 37 of the connector 36 and the rising portion 34a of the locking hook 34. By providing such a gap L, the connector 36 is provided.
The appropriate displacement and tilting in the direction orthogonal to the connector connecting direction are allowed.

In the connector body 14, the connector 24 and each connector 36 are connected to the flexible wiring member 46.
Are connected to each other via. The flexible wiring member 46 is a sheet-shaped wiring member in which the printed wirings forming the branch conductive paths are covered with an insulator, and as shown in FIG.
In addition, the upper and lower ends thereof are respectively connected to the connectors 36 in a state of being bent toward the U shape. Then, when each connector 36 is connected to the board P as described above, it is incorporated into the wiring circuit of each board P in the branch conductive path of this flexible wiring member 46, thereby connecting each electric component to each other. A J / B circuit is constructed.

Connector 24 and flexible wiring member 46
The connection with the terminal 30 projected from the connector 24
The base end portion of is inserted into the flexible wiring member 46 and soldered to the printed wiring. On the other hand, the connection between the connector 36 and the flexible wiring member 46 is such that the connection piece 39 of the terminal 40 projected from the connector 36 is inserted into the flexible wiring member 46 and soldered to the printed wiring, and the connector 36 is projected. This is performed by inserting the fixed columnar fixing piece 39 into the flexible wiring member 46 and caulking the flexible wiring member 46.

As shown in FIG. 2, the lever 50 is a U-shaped member having a main body portion 50a for closing the upper portion of the case 16 and tapered side wall portions 50b connected to both sides thereof. The base end portion of the side wall portion 50b (lower side portion in FIG. 2;
It is swingably attached to the side wall 27b of the support body 26 via a cam portion).

That is, on each side wall 27b of the support 26, a guided portion 47a interposed in the guide groove 18 formed in the side wall 16a of the case 16 and the guided portion 4 are provided.
A protrusion 48 integrally provided with a shaft portion 47b protruding further to the side from 7a is provided so as to project, while a cylindrical shape is formed on the inner surface of the side wall portion of the lever 50 (that is, the surfaces of the side wall portions 50b facing each other). Ribs 54 of the projections 48 are provided so as to be fitted on the shaft portions 47b of the projections 48, respectively, so that the lever 50 is supported on the support body 26 in a swingable manner around the shaft portions 47b. It is installed.

Further, on each side wall portion 50b of the lever 50, an arc-shaped rib 52 is provided at a position slightly closer to the tip end than the rib 54, and the arc-shaped rib 52 is provided on the arc-shaped rib 52.
A cam groove 53 for interposing the cam pin 20 of No. 6 is formed.

As shown in FIG. 7, the cam groove 53 is directed toward the direction in which the connecting portion main body 14 and the substrate accommodating body 12 are fitted to each other, and the lever 50 holding the main body portion 50a vertically holds the substrate. A substantially horizontal starting end portion 53a that opens toward the body 12 and the rib 5 that is continuous with the starting end portion 53a.
It is composed of an arc-shaped portion 53b extending to the vicinity of four. The arcuate portion 53b is formed so that the distance R between its center line and the center of the rib 54 (that is, the center of the protrusion 48) gradually decreases from the starting end portion 53a side toward the terminating end side.

The substrate container 1 having the above-mentioned structure
The J / B 10 is configured by fitting and integrating the two and the connecting portion main body 14 with each other. Here, a procedure for fitting the board housing 12 and the connection body 14 will be described with reference to FIGS. 7 and 8.

In order to integrate the board housing 12 and the connecting portion main body 14, first, as shown in FIG. 7, the connecting portion main body 14 is arranged so that each connector 36 faces the corresponding substrate P.
Is opposed to the substrate container 12 and the lever 50 is held in an upright posture.

Then, the substrate container 12 and the connecting portion main body 14
Are brought close to each other, and the guided portion 47a of the projection 48 formed on the support body 26 of the connecting portion main body 14 is interposed in the guide groove 18 of the case 16, while the cam pin 20 protruding from the case 16 is connected to the cam of the lever 50. The cam pin 20 is made to intervene in the groove 53, and the cam pin 20 and the cam pin 53 are brought close to each other until the end of the start end 53a (the left end in the figure).

In this way, when the cam pin 20 reaches the end of the starting end portion 53a, the partitioning piece Pa of the substrate P projects into each housing portion 38 of the connector 36, and the contact portion Pb is inserted into the receiving portion 42 of the terminal 40. It At this time, the guided portion 47 a of the protrusion 48 is intervened in the guide groove 18 so that the substrate container 12
The connector body 14 and the connector body 14 are fitted in a fixed positional relationship with each other. However, in the connector body 14 as described above, the connector 36 is allowed to be displaced and tilted with respect to the support body 26. 36, or even if there is an error in the relative mounting position of the board P, the connector 36 is displaced such that the board P is introduced into the receiving portion 42 along the tapered surface of the terminal 40 and the above error can be absorbed, or When the flexible wiring member 46 is tilted and the flexible wiring member 46 is flexibly deformed accordingly, the board P properly receives the receiving portion 42 of the terminal 40 without applying a load to each portion.
Will be introduced to.

Next, the lever 50 is swung toward the connecting portion main body 14 side (the direction of the arrow in the figure). Thus lever 5
When 0 is swung, the cam pin 20 is guided by the cam groove 53 so that the cam pin 20 intervenes in the arc-shaped portion 53b from the starting end portion 53a, and the cam pin 20 is guided along the arc-shaped portion 53b. 12 and the connecting portion main body 14 are brought close to each other, and the substrate P is introduced into the receiving portion 42 of the terminal 40 accordingly. At this time, the cam groove 53
Since the contact point (that is, the point of action) between the rib 54 and the cam pin 20 that forms the position is located in the very vicinity of the shaft portion 47b (that is, the fulcrum) that is the swing center, the tip portion of the lever 50 is held and shaken. When moved, the lever P can easily introduce the substrate P into the receiving portion 42 of the terminal 40.

The cam pin 20 is provided at the end of the cam groove 53.
When the lever 50 is swung until the pressure reaches (FIG. 8), the substrate P
And the connector 36 are completely connected, and the opening 17b above the case 16 is covered by the lever 50, so that the connector 2 is opened from the front opening 17a of the case 16.
4 with the substrate 4 protruding, the substrate housing 12 and the connection portion main body 14
And are integrated. The opening 1 above the case 16
In the state of FIG. 8 in which 7b is blocked by the lever 50, the lever 5
The inclined portion formed at the tip of the main body portion 50a of 0 is a cutout portion 16 formed at the upper rear portion of the side wall 16a of the case 16.
b, so that the board housing 12 and the connection body 1
4 and 4 are held in an integrated state.

As described above, according to J / B10, when the substrate housing 12 and the connecting portion body 14 are fitted together, the lever 50 is swung to move the substrate housing 12 and the connecting portion body 14 from each other. Since the levers are brought close to each other by the lever action, the connector 36 and the substrate P can be connected very easily. Therefore, a large number of substrates P are attached to the substrate container 1.
2 can be easily and appropriately connected to each board P even when it is necessary to provide the board 36.
In the manufacturing process of the J / B 10, the substrate container 12 and the connecting portion main body 14 can be quickly and properly assembled with a small force, and the productivity can be remarkably improved.

When the substrate P needs to be replaced, the cover 50 can be swung in the opposite direction to the assembling process so that the substrate housing 12 and the connecting portion body 14 can be very easily replaced.
The J / B 10 is extremely advantageous from the standpoint of maintenance as well.

By the way, the J / B described in the above embodiment is used.
Reference numeral 10 is an example of the electrical connecting device according to the present invention, and its specific configuration can be appropriately changed without departing from the scope of the present invention.

For example, in the above J / B10, the lever 50
Is swung to fit the board housing 12 and the connecting portion main body 14, and after fitting, the opening 17b of the case 16 is fitted.
Is covered with the lever 50, that is, the lever 5
Although 0 is also used as a case cover, for example, it is not always necessary to have such a structure as a case cover, and an independent lever member may be provided.

For example, FIG. 9A shows an example of such J / B. In the J / B 11 shown in this figure, only the front opening 17a is formed in the case 16 of the substrate container 12. On the other hand, the lever 60 of the connection body 14
Is a pair of side plates 62 provided with the arcuate ribs 52 and the ribs 54 at the base end (lower end in the figure), and the side plates 62.
And the operating portion 64 for connecting the ends of the connecting portion main body 14 to each other via the rib 54.
It is mounted so that it can swing freely. Even in such a J / B 11, when the connecting portion main body 14 and the board housing body 12 are fitted together, both can be fitted easily by swinging the lever 60, and the both are fitted together. After that, the operating portion 64 of the lever 60 engages with the inclined portion formed on the upper rear portion of the case 16, whereby the substrate container 12 and the connecting portion body 14 are held in an integrated state ( Figure 9
(B)). Therefore, the lever can be independently provided in this way. However, if the lever 50 is configured to function as a case cover like the J / B 10 shown in FIG. 1, there is an advantage that the configuration is rationalized and the number of parts can be reduced.

In addition, J / B10 shown in FIGS.
In 11, the levers 50 and 6 are provided on the side of the connecting portion body 14
Although 0 is provided, of course, a lever may be provided on the substrate container 12 side.

Further, in addition to the structure in which the board housing 12 and the connecting portion main body 14 are fitted to each other by the lever action according to the swing of the levers 50 and 60 as in the J / Bs 10 and 11, the board housing body is also provided. It is also possible to adopt a configuration in which the 12 and the connection portion main body 14 are pulled in and fixed to each other by screwing.
FIG. 10A shows such a J / B structure.

In the J / B 11 'shown in this figure, the above J / B
Instead of providing the lever 50 and the like as in B10 and B11, the bolt 60 is rotatably held on the support body 26 of the connection portion main body 14, while the corresponding nut 70 is fixed to the substrate housing body 12. There is. Then, the substrate container 12
The bolt 60 is screwed into the nut 70 when the connection portion body 14 and the connection portion main body 14 are fitted to each other so that they are drawn into each other and fitted together (FIG. 10B). . With such a configuration of the J / B 11 'as well, it is possible to easily fit the substrate housing 12 and the connection portion main body 14 by a simple operation of rotating the bolt 60. In particular, in the case of this J / B11 ', the above J / B
There is an advantage that the configuration is simpler than B10 and B11.

[0047]

As described above, the electrical connecting device of the present invention is assembled to the first unit that fixedly supports one or more printed circuit boards in the case, and to the first unit in a fixed positional relationship. An electric connecting device is configured by the second unit and an auxiliary means for assisting the assembling of both units. The second unit is provided with a flexible wiring member, a harness connecting member and a board connecting member, and when both units are assembled together, a board is formed. The connecting member and the printed circuit board are connected to each other so that the circuit of the printed circuit board is incorporated in the branch conductive path of the flexible wiring member.
Since the force is applied in the direction of urging the connection between the board connecting member and the printed board by the auxiliary means, each printed board and each board connecting member can be easily provided even if a large number of printed boards need to be provided. And can be properly connected. Therefore, in the manufacture of the electrical connection device, the units can be assembled quickly and properly, which can significantly improve the productivity.

In particular, the above-mentioned auxiliary means is swingably supported by a unit on one side and is provided so as to be engageable with the unit on the other side, and a lever member in an engaged state with the unit on the other side. If a guide mechanism that amplifies the force that brings the units closer to each other and the units that move closer to each other as the unit swings is swung, the swinging operation of the lever members will cause the units to move quickly and with less force. Can be assembled properly. In this case, when the opening for exposing the printed circuit board to the outside of the case of the first unit is provided and the lever member is attached to the second unit, the opening of the case is opened with both units assembled. If the lever member is formed so as to be closed, the configuration can be rationalized and the number of parts can be reduced.

On the other hand, while the bolt member is rotatably held in the unit on one side, the nut member is fixed to the unit on the other side correspondingly, and the bolt member is screwed to the nut member to screw both units. If the above-mentioned auxiliary means is configured to approach each other, the units can be easily and properly assembled with a simple structure.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a joint box according to the present invention.

FIG. 2 is a view showing a state in which a lever is separated from a connecting portion main body in FIG.

FIG. 3 is a sectional view showing the joint box (a state in which a lever is removed).

FIG. 4 is an enlarged cross-sectional view of an essential part showing the structure of the connection portion main body of the joint box.

FIG. 5 is a perspective view showing a configuration of an edge portion of a printed circuit board and a configuration of a connector of a connection portion main body connected to the printed circuit board.

FIG. 6 is a cross-sectional view showing a connection state between a connector of a connection portion main body and a printed circuit board.

FIG. 7 is a side view (a state before assembling) illustrating an assembling procedure of the substrate container and the connection portion main body.

FIG. 8 is a side view (a state after completion of assembly) for explaining a procedure for assembling the substrate container and the connection portion main body.

9A and 9B are views showing another example of the joint box according to the present invention, in which FIG. 9A is a side view showing a state before assembly of the substrate housing and the connecting portion main body, and FIG. It is a side view which shows the state after completion of assembly with the main part.

10A and 10B are views showing another example of the joint box according to the present invention, in which FIG. 10A is a side view showing a state before assembling the board housing and the connection body, and FIG. It is a side view which shows the state after completion of assembly with the main part.

[Explanation of symbols]

10 joint box 12 Substrate housing 14 Connection body 16 cases 16a side wall 17a, 17b opening 18 guide groove 20 cam pins 24, 36 connectors 26 Support 46 Flexible wiring member 47a Guided part 47b Shaft 48 protrusions 50 lever 50a main body 50b side wall 52 Arc-shaped rib 53 Cam groove P printed circuit board

Front Page Continuation (72) Inventor Takao Nozaki 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Harness Research Institute Co., Ltd. (56) Reference JP 4-75272 (JP, A) JP JP 2-17818 (JP, A) Actual opening Sho 53-148197 (JP, U) Actual opening 1-120725 (JP, U) Actual opening 5-62128 (JP, U) Special table 7-502856 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 23/68 301 H01R 13/629 H01R 31/06

Claims (5)

(57) [Claims] 1. A printed circuit board, which is connected to an electric wire of a wire harness via a wiring member having a branch conductive path, wherein one or more printed circuit boards are fixedly supported in a case. It comprises a first unit, a second unit assembled to the first unit in a fixed positional relationship, and auxiliary means for assisting the assembly of both units. The second unit prints the branch conductive path.
A sheet-shaped frame as a wiring member formed by wires.
And Kishiburu wiring member, it the flexible wiring member
Rutotomoni a board connecting member for connecting the harness connecting member and the wiring member for connecting the respective fixed wiring member and the wire harness and the printed circuit board directly, both units together The relative positions of the board connecting member and the printed board are set so that the board connecting member and the printed board are connected by being assembled, and the board connecting member is the second unit.
The knit should be orthogonal to the direction of connection to the printed circuit board.
It is held so that it can be displaced in the direction of
An electrical connection device configured to apply a force in a direction in which each unit is brought close to each other to promote connection between the board connection member and the printed board. 2. The lever means is swingably supported by a unit on one side and is provided so as to be engageable with a unit on the other side, and in a state of being engaged with the unit on the other side. The electrical connecting device according to claim 1, further comprising a guide mechanism that amplifies a force that causes the units to approach each other and causes the units to approach each other as the lever swings. 3. The assisting means comprises a lever member swingably mounted on one of the units, a pin member protruding from the other unit, and a guide for both units in the assembling direction. The lever member includes a cam portion at a base end portion and a lever body portion integrally provided with the cam portion, and the cam portion is supported by the unit via a fulcrum shaft. The cam groove is located in the cam portion between the fulcrum shaft and the lever main body, has a start end opening to the edge of the cam portion, and a distance from the fulcrum shaft gradually decreases toward the end. 3. The electrical connecting device according to claim 2, wherein the pin member is formed so as to intervene in the cam groove. 4. The case of the first unit is provided with an opening for exposing the printed circuit board to the outside, and the lever member is attached to the second unit, wherein the lever member is provided for both units. The electrical connection device according to claim 2 or 3, wherein the electrical connection device is formed so as to close the opening portion of the case when the assembly is completed. 5. The auxiliary means comprises a bolt member rotatably held by a unit on one side and a nut member correspondingly fixed to the unit on the other side. 2. The electrical connecting device according to claim 1, wherein both units are made to approach each other by screwing the bolt member.