JP3373400B2 - Connection structure between battery post and signal wire - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure for connecting a battery post and a signal wire.

[0002]

2. Description of the Related Art As a means for connecting battery posts standing on the upper surface of a plurality of batteries, as shown in FIG. 5, a conductor 2A made of a stranded wire connecting battery posts P is resin-coated 2B for conductivity. A connector 1 having plate-shaped terminals 3 fixed to both ends of the member 2 and a cover 4 formed of a soft resin material and formed into an elongated box shape whose lower surface is entirely opened are used. The battery posts P are connected to each other by fitting the mounting holes (not shown) of both terminals 3 into the battery posts P and fixing them with the nuts N. Further, the connector 4 is covered with the cover 4 from above to prevent the hand from coming into contact with the battery post P and the conductive member 2, and at the same time waterproof.

In the above structure, in order to detect the voltage of the battery B, the terminal 6 fixed to the signal wire 5 of the voltage detection circuit (not shown) is fitted to the battery post P, and the nut N is used to connect the connector 1. A structure is used in which the terminal 3 and the terminal 3 are fixed together. Signal wire 5 connected to the battery post P
Is drawn out from the cutout portion 4A of the cover 4.

[0004]

SUMMARY OF THE INVENTION In the above conventional one,
Since the lower surface of the cover 4 was open, the waterproof function could not be exerted against water from the side or the bottom. The present invention was created in view of the above circumstances, and it is an object of the present invention to connect a signal wire to a battery post and to reliably waterproof the connecting portion.

[0005]

According to a first aspect of the invention, a terminal fixed to a signal wire is connected to a battery post standing on the outer surface of a battery, and a connecting portion between the battery post and the terminal is covered. A connection structure for a covered battery post and a signal wire, which is provided on the cover and has one end opened to surround the battery post and the terminal, and a cover cylinder formed at an opening edge of the cover cylinder. And a sealing portion that adheres to the outer surface of the battery in a watertight manner, and is provided so as to penetrate the covered tubular portion, and
Do not allow the connected signal wires to be inserted without getting caught.
A wire insertion hole which enables the door, a separate body from the said lidded tubular portion
None, the wire is inserted while it is fitted onto the signal wire.
An electric wire sealing means is provided which is water-tight between the electric wire insertion hole and the signal electric wire by being fitted in the hole .

According to a second aspect of the invention, the battery is erected on the outer surface of the battery.
Connect the terminal fixed to the signal wire to the battery post
Cover the connection between the battery post and the terminal.
The connection structure of the battery post and signal wire covered with a cable
The cover includes the battery post and the terminals.
The main body of the cylinder that opens at both ends to enclose the connection part with
Watertight cap for one opening in the body
And the battery is formed on the other opening edge of the cylinder body.
Lidded cylinder with a watertight seal on the outer surface of the container
Is provided, and the signal wire is inserted into the cap.
If an electric wire insertion hole that allows communication is formed through
In both cases, the electric wire insertion hole is
An electric wire seal that makes a watertight state between the through hole and the signal electric wire.
It is characterized by the fact that the means for arranging is provided . A third aspect of the present invention is a battery post that is erected on the outer surface of the battery.
Connect the terminal fixed to the signal wire to the
Battery with a cover covering the connection between the strike and the terminal
A structure for connecting posts and signal wires,
Surrounds the connection between the battery post and the terminal
And a rubber tube body that is formed on the opening edge of the tube body.
The watertight seal on the outer surface of the battery.
A covered cylinder part is provided, and the signal is provided on the cylinder body.
Electric wire insertion tube part that allows insertion of the electric wire is integrally formed
The inner diameter of the wire insertion tube outside the signal wire.
By making the diameter smaller than the diameter,
It is characterized in that it is configured to be watertight between the power cable and the signal wire .

[0007]

[Operation and effect of the invention]

<Invention of Claims 1 and 2 > A watertight state is provided by a seal portion between the opening edge of the covered tubular portion and the outer surface of the battery, and the signal wire is watertight by the wire sealing means in the insertion path of the signal wire. Since it is in the state, the inside of the covered tubular portion, that is, the connecting portion between the battery post and the terminal is surely made waterproof. Incidentally, claim 1
In assembling the signal electric wire and the terminal to the covered tubular portion, the terminal is fixed to the signal electric wire which has been fitted in the tubular electric wire sealing means in advance, and the terminal and the terminal of the signal electric wire are attached. The portion is introduced into the inside of the covered tubular portion through the wire insertion hole , and then the wire sealing means is fitted into the wire insertion hole . The workability is better than that in the case where the terminals are fixed after the signal electric wire is passed through the covered tubular portion.

<Invention of Claim 3> The signal electric wire is drawn out of the covered cylindrical portion while keeping the watertight state by inserting the electric wire insertion cylindrical portion .

[0009]

DETAILED DESCRIPTION OF THE INVENTION

<First Embodiment> A first preferred embodiment of the present invention will be described below with reference to FIGS. The battery posts P standing upright on the upper surface of each of the plurality of batteries B are connected to each other by the connector 10, and each battery post P has a signal wire of a voltage detection circuit (not shown). 30 is connected.

First, the connector 10 will be described. The connection tool 10 includes a conductive member 11, a connection terminal 12, and a cover 13.
It consists of and. The conductive member 11 is formed by applying a resin coating 15 to a conductor 14 in which metal wires are twisted together, and is capable of bending and deforming in a curved shape. This conductive member 11
The flexure absorbs the variation in the distance between the battery posts P. The connection terminal 12 is composed of a disk-shaped terminal body 16 having a mounting hole 17 fitted in the battery post P at the center and a barrel portion 18 raised from the outer peripheral edge of the terminal body 16. The terminal portion exposed by peeling off the resin coating 15 of the conductor 14 of the conductive member 11 is pressure-bonded to the portion 18.

The cover 13 has a covered cylindrical portion 19 concentric with the connection terminal 12, and a tube 2 separate from the covered cylindrical portion 19.
It consists of 0 and. The covered tubular portion 19 includes a tubular body 21 made of rubber and a cap 22 made of hard resin attached so as to close the opening at the upper end of the tubular body 21. The cylinder body 21 is integrated with the connecting terminal 12 by molding, and the terminal body 16 is arranged so as to close the lower end portion of the cylinder body 21, and the barrel portion 18 extends from the outer peripheral surface of the upper end of the cylinder body 21. Exposed. The crimping portion between the barrel portion 18 and the conductor 14 of the conductive member 11 is covered with the tube 20. The tube 20 is made of heat-shrinkable resin, and both ends of the tube 20 are water-tightly fitted to the outer circumference of the barrel lead-out portion 23 of the barrel body 21 and the outer circumference of the resin coating 15 by shrinkage deformation.

Further, a lip portion 24 is formed on the inner circumference of the upper end portion of the cylinder main body 21 so as to be elastically deformed and closely adhered in a watertight state to the cap 22. Here, the cap 22 will be described. The cap 22 has a disc shape as a whole, and the inner surface of the inner fitting cylindrical portion 2 that is internally fitted to the cylindrical body 21 is formed on the lower surface thereof.
2A and an outer fitting cylinder portion 22B that is fitted on the cylinder body 21 are provided, and the lip portion 24 is closely attached to the outer periphery of the inner fitting cylinder portion 22A. On the other hand, a skirt-shaped seal portion 25 is formed on the lower end edge of the cylinder main body 21 over the entire circumference, and when the connecting terminal 12 is fixed to the battery post P, the seal portion 25 is a battery. The upper surface of B is elastically deformed and comes into close contact in a watertight state.

An electric wire insertion hole (electric wire insertion means which is a constituent of the present invention) 26 penetrating in the radial direction is formed on the outer periphery of the lower end portion of the cylinder main body 21 so as to project slightly outward. The opening size of the wire insertion hole 26 is the signal terminal of the signal wire 30 described later (a terminal that is a constituent of the present invention).
It is dimensioned so that 33 can be inserted without being caught. A rubber wire seal member (wire seal means, which is a constituent of the present invention) 27, which is a separate component from the cylinder body 21, is fitted into the wire insertion hole 26. The electric wire sealing member 27 has a tubular shape, and the inner diameter thereof is slightly smaller than the outer diameter of the signal electric wire 30.
The outer diameter of 7 is set to be slightly larger than the inner diameter of the wire insertion hole 26. Further, the wire seal member 27 is formed with an outer cylinder portion 28 that is in close contact with the outer periphery of the protruding portion of the wire insertion hole 26.

The signal wire 30 is a conductor 3 made of a stranded wire.
The outer circumference of 1 is covered with a resin coating 32, and the diameter of the conductor 31 is smaller than the diameter of the conductor 14 of the conductive member 11 of the connector 10. The resin coating 32 is peeled off at the end of the signal electric wire 30 to expose the conductor 31, and the barrel portion 34 of the signal terminal 33 is crimped thereto. The signal terminal 33 has a circular shape that is concentric with the connecting terminal 12 of the connecting tool 10, and has a mounting hole (not shown) at the center of which the battery post P is fitted. The plate thickness of the signal terminal 33 is thinner than that of the connection terminal 12 of the connector 10.

Next, the operation of this embodiment will be described. First, the assembling of the connector 10 will be described. Assemble the tube 20 before applying heat to the conductive member 11 in advance.
A connecting terminal 1 in which a tube main body 21 is integrated by molding.
It is crimped to the second barrel portion 18. After that, the tube 20 is slid to a position that covers the pressure-bonded portion, and heat is applied to the tube 20 to shrink it. As a result, the cylinder body 21 and the resin coating 15
The area between and is waterproof.

Next, the signal wire 30 is assembled to the connector 10. In this work, the electric wire seal member 27 is externally fitted on the electric wire for signal 30 in advance, and the electric wire for signal 3 is
The conductor 31 of 0 and the signal terminal 33 are pressure-bonded to be integrated. After that, the electric wire seal member 27 is slid to the signal terminal 33 side, and is temporarily held at a predetermined position by friction between the outer circumference of the signal electric wire 30 and the inner circumference of the electric wire seal member 27. Next, the signal terminal 33 is connected to the wire insertion hole 26 from the outside.
And the electric wire sealing member 27 is fitted into the electric wire insertion hole 26. The electric wire seal member 27 is held in a fitted state by friction between the outer peripheral surface thereof and the inner peripheral surface of the electric wire insertion hole 26. At this time,
The signal terminal 33 is aligned with the connection terminal 12 of the connector 10 so as to be concentrically overlapped.

In this way, the signal wire 3 is connected to the connector 10.
When 0 is assembled, the mounting hole 17 of the connecting terminal 12 and the mounting hole (not shown) of the signal terminal 33 are fitted to the battery post P, and the nut N is inserted from the opening at the upper end of the cylinder body 21. Screwed into the battery post P, a jig (not shown) is inserted into the cylinder body 21, and the nut N is tightened to fix the signal terminal 33 and the connection terminal 12 together. When the cap 22 is fitted in the opening at the upper end of the main body 21, the battery posts P are connected to each other by the connector 10 and the signal wire 30 is connected to the battery post P.

In this state, the space between the lower end of the cylinder body 21 and the upper surface of the battery B is waterproofed by the seal portion 25. Further, the gap between the upper end of the cylinder body 21 and the cap 22 is waterproofed by the lip portion 24 of the cylinder body 21. Further, the crimping portion between the conductor 14 and the barrel portion 18 is covered with the tube 20, and the barrel lead-out portion 23 of the barrel main body 21.
Between the end of the tube and the tube 20, and the conductive member 11
The fitting portion between the end of the resin coating 15 and the tube 20 is
The tube 20 is waterproof by the heat-shrinking action. Furthermore, a gap between the wire insertion hole 26 and the wire seal member 27,
Also, the gap between the electric wire sealing member 27 and the signal electric wire 30,
The electric wire seal member 27 is in a watertight state by the elastic close contact action. As described above, it is possible to prevent water from entering the inside of the covered tubular portion 19. The inside of the resin coating 15 is the tube 2
The inside of this resin coating 15 is also waterproof because it only communicates with the inside of the cylinder main body 21 through 0 and there is no portion that directly opens to the outside.

As described above, in this embodiment, while connecting the signal electric wire 30 from the outside to the battery post P, it is possible to surely keep this connecting portion in a waterproof state. Further, in the present embodiment, the cylinder body 21
The electric wire insertion hole 26 is made large enough to allow the signal terminal 33 to be inserted, and the large opening is formed in the electric wire seal member 2.
Since it is sealed by 7, it is possible to assemble the signal terminal 33 and the signal wire 30 to the cylinder body 21 after crimping. Therefore, the signal wire 3
The workability is superior to the case where 0 is passed through the cylinder body 21 and then crimped to the signal terminal 33. Further, in the state before being connected to the battery post P, the cylinder main body 21
Since the signal wire 30 and the signal wire 30 can be separately prepared, the harness on the connection terminal 12 side of the connector 10 and the harness on the signal wire 30 side can be divided into independent systems. . Therefore, the work does not become complicated at the time of transportation to the construction site, management at the time of delivery, assembly to the battery post P, removal from the battery post P, and the like.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment,
The electric wire insertion means and the electric wire sealing means are different from those in the first embodiment. Since other configurations are the same as those in the first embodiment,
The same reference numerals are given and the description of the structure, action and effect is omitted. In the first embodiment, the electric wire insertion hole 26 and the electric wire seal member 27 are provided in the tube body 21, whereas in the second embodiment, the electric wire insertion hole (electric wire insertion means which is a constituent of the present invention) 40. An electric wire sealing member (electric wire sealing means which is a constituent of the present invention) 41 is provided on the cap 22. That is, the cap 22 is formed with an electric wire insertion hole 40 penetrating in the vertical direction, and a rubber electric wire seal member 41 is fitted in the electric wire insertion hole 40. A watertight state is maintained between the inner circumference of the wire insertion hole 40 and the outer circumference of the wire seal member 41 due to elastic deformation of the wire seal member 41. Further, the signal wire 30 is fitted in the wire seal member 41 in a watertight manner in advance. Therefore, the signal wire 30, the signal terminal 33, and the cap 22
And are unitized.

<Third Embodiment> Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment,
The electric wire insertion means and the electric wire sealing means are different from those in the first embodiment. Since other configurations are the same as those in the first embodiment,
The same reference numerals are given and the description of the structure, action and effect is omitted. On the outer circumference of the lower end of the tube body 21, a wire insertion tube portion (electric wire insertion means which is a constituent feature of the present invention) 42 protruding outward in the radial direction is formed. In addition, the inner circumference of the wire insertion tube portion 42 is an electric wire sealing surface (electric wire sealing member which is a constituent feature of the present invention) 43 which is set to be smaller than the outer diameter of the signal electric wire 30. This wire insertion tube 42
The signal electric wire 30 before crimping the signal terminal 33 is previously inserted into the signal electric wire 30 and the electric wire inserting tubular portion 4
The space between the two is kept watertight by the electric wire sealing surface 43. After the signal electric wire 30 is inserted in this way, the signal terminal 3 is attached to the terminal portion penetrated inside the tube main body 21.
3 is crimped. After crimping, the signal electric wire 30 is pulled back to the outside, and the signal terminal 33 is connected to the connecting terminal 12 of the connector 10.
Adjust the position so that it corresponds to.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention. (1) In the above embodiment, the covered tubular portion 19 is composed of the tubular main body 21 and the cap 22 which is a separate component from the tubular main body 21, but according to the present invention, the covered tubular portion may be an integral component.

(2) In the above embodiment, the electric wire insertion means is provided so as to penetrate only either the cylinder body 21 or the cap 22, but according to the present invention, the signal electric wire is provided between the cylinder body and the cap. It is also possible to secure a space into which the wire can be inserted and use this as an electric wire insertion means. (3) In the above-described embodiment, the case where the connector 10 for connecting the battery posts P is of a type in which the connecting terminal 12 is fixed to the conductive member 11 in which the conductor 14 made of a stranded wire is resin-coated 15 is described. However, the present invention can also be applied to a case where the connector is a bus bar type in which terminals are fixed to both ends of a conductive member made of a strip-shaped braid.

(4) In the second embodiment, the cap 22 is made of rubber, and the inner circumference of the wire insertion hole (electric wire insertion means) formed in the cap as in the third embodiment is used as an electric wire sealing surface (electric wire sealing means). It may be configured to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a state in which a signal wire is removed from a battery post in Embodiment 1.

FIG. 2 is a cross-sectional view showing a state in which a signal wire is connected to a battery post according to the first embodiment.

FIG. 3 is a cross-sectional view of a state in which a signal wire is connected to a battery post according to the second embodiment.

FIG. 4 is a cross-sectional view of a state in which a signal wire is connected to a battery post according to the third embodiment.

FIG. 5 is a sectional view of a conventional example.

[Explanation of symbols]

B ... Battery P ... Battery post 13 ... Cover 19 ... Cylinder with cover 25 ... Seal part 26 ... Electric wire insertion hole (electric wire insertion means) 27 ... Electric wire sealing member (electric wire sealing means) 30 ... Signal wire 33 ... Signal terminal (terminal) 40 ... Electric wire insertion hole (electric wire insertion means) 41 ... Electric wire sealing member (electric wire sealing means) 42 ... Electric wire insertion tube (electric wire insertion means) 43 ... Electric wire sealing surface (electric wire sealing means)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirokazu Ichikawa 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Harness Institute of Technology Co., Ltd. (56) Reference JP-A-11-86836 (JP, A) JP-A-11-86838 (JP, A) JP-A-10-64507 (JP, A) Actually open 52-71026 (JP, U) Actually open 61-183061 (JP, U) Actually open 6-5114 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01M 2/30 H01M 2/34

Claims (3)

(57) [Claims] 1. A connecting structure for a battery post and a signal wire, wherein a terminal fixed to a signal wire is connected to a battery post that is erected on the outer surface of a battery, and a connection portion between the battery post and the terminal is covered with a cover. And a covered cylindrical portion provided on the cover and having one end open to surround the battery post and the terminal; and a watertight contact with an outer surface of the battery formed at an opening edge of the covered cylindrical portion. A seal part and a terminal part provided so as to penetrate the covered tubular part,
The signal wire connected to the terminal does not get caught
The electric wire insertion hole that can be inserted and the covered tubular portion are formed separately, and are fitted onto the signal electric wire.
The wire is inserted into the wire insertion hole in the
A connection structure for a battery post and a signal wire, comprising: a wire seal means for making a watertight state between the insertion hole and the signal wire. 2. A battery post installed upright on the outer surface of the battery.
Connect the terminal fixed to the signal wire to the
A battery cover that covers the connection between the post and the terminal.
A connection structure of a repost and a signal wire, wherein the cover is provided with a contact between the battery post and the terminal.
The main body of the cylinder, which is open at both ends and surrounds the connecting part,
The watertight cap to the opening
It is formed on the other opening edge of the storage cylinder body and
A covered cylindrical part with a seal part that adheres to the surface in a watertight manner is provided.
It is possible to insert the signal wire into the cap.
The wire insertion hole is formed through the
By being fitted in the wire insertion hole, the wire insertion hole and the signal
An electric wire seal means is provided to keep the space between the
The connection structure between the battery post and the signal wire is characterized by 3. A battery post installed upright on the outer surface of the battery.
Connect the terminal fixed to the signal wire to the
A battery cover that covers the connection between the post and the terminal.
A connection structure of a repost and a signal wire, wherein the cover is provided with a contact between the battery post and the terminal.
A rubber cylinder body that surrounds the connecting part and the opening of this cylinder body.
It is formed on the edge and adheres to the outer surface of the battery in a watertight manner.
A lidded tubular portion having a seal portion is provided, and an electrical cable that allows the signal wire to be inserted into the tubular body.
The wire insertion tube is integrally formed, and the inner diameter of the wire insertion tube is smaller than the outer diameter of the signal wire.
Also, the cable insertion tube and the signal
A structure for connecting a battery post and a signal wire is characterized in that a watertight state is formed between the wire and the wire.