JPH0616430Y2 - Relay terminal - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a relay terminal for electrical conduction,
More specifically, the present invention relates to an improvement of a receptacle relay terminal that is housed in a terminal housing chamber of a housing and has tab-shaped male terminals inserted from both ends to relay electrical conduction.

“Prior Art” For the conventional receptacle relay terminal 3 described above, see FIG.
It is inserted into the terminal accommodating chamber 2 of the housing 1 and receives, for example, the tab terminal 5A on the connector side and the tab terminal 5B on the device side from both ends, and the tab terminals 5A5B are inserted and attached to the contact portions 6 formed on both ends thereof. It has a basic structure that relays continuity. However, since the relay terminal 3 is inserted into the terminal accommodating chamber 2 without “rattle”, the relay terminal 3 in the terminal accommodating chamber 2 is
When the tab terminal 5B on the device side is inserted from the outside of the housing 1, and the thickness center line 19 of the tab terminal 5B deviates from the insertion center line 7 of the contact portion 6, a deviation E exists, The insertion resistance of the tab terminal 5B becomes large and the workability deteriorates. If the contact portion 6 is forcibly inserted as it is, there is a problem that the contact portion 6 is plastically deformed and the electrical conduction performance is deteriorated.

On the other hand, US Pat.
The relay terminal of No. 53792 is known. That is, this U.S. patent shows a pair of blade members 20A and 20B which are overlapped with each other to form a contact portion and blade members which are overlapped with each other.
It is composed of a pair of spring members 21A21B which are sandwiched and connected to the left and right side edges of 20A20B. These four members are combined to form a receptacle relay terminal, and the combined receptacle relay terminal 3 is elastic in the terminal accommodating chamber 2. Even if the center of the tab terminal 5 received from both ends is deviated from the center of the mating contact portion 6 due to the elastic displacement of the spring member 21A21B, the tab terminal 5 can be easily inserted and attached. ing.

[Problems to be Solved by the Invention] Although the relay terminals of the above-mentioned US patents are excellent in insertability of the tab terminals 5. Since it consists of a combination of four members, the number of members is large, and the combination work is required, and the cost is high. ・ The structure is complicated and the workability is poor. ・ To stabilize the posture in the terminal accommodating chamber, both ends are closed. There is a problem in that the above practicality is lacking because a special locking means such as a terminal accommodating chamber shape is required.

It is an object of the present invention to provide a relay terminal that solves the above conventional problems.

"Means for Solving the Problems" The present invention which solves the above technical problems "is a receptacle terminal for connecting a tab terminal which is housed in a terminal housing chamber formed in a housing and which is inserted from an end of the housing, Between the front plate and the back plate, four wall plates having a front plate and a back plate which are formed by winding a single plate material punched into a required shape into a hollow quadrangular prism shape and are located in parallel with each other. Formed on each of the front plate and the back plate, and a contact part that sandwiches the tab terminal inserted from the end of the housing, and is formed outside the wall surface of the front plate and the back plate. Is formed so as to be bulged toward and elastically deformable, and comes into contact with the inner peripheral surface of the housing to elastically bend between the inner peripheral surface and the front plate and between the inner peripheral surface and the back plate. A cantilevered elastic piece that forms a space The relay terminal is characterized in that

The relay terminal having the above basic configuration adopts or adds the following specific configuration. That is, "a pair of the elastic pieces is formed on each of the front plate and the back plate, and the elastic pieces are arranged diagonally so as to intersect each other in an X shape when viewed from one surface of the front plate and the back plate." Furthermore, “each of the pair of elastic pieces formed on each of the front plate and the back plate has a cantilevered free end with an inclined surface parallel to the lateral center line of the front plate and the back plate. The groove-shaped engaging portion fitted to the engaging ridge formed on the inner peripheral surface of the terminal accommodating chamber is formed between these slopes. "" Operation " The relay terminal has a cantilevered elastic piece arranged on the front plate and the rear plate of the main body and protruding outward, and the elastic piece is pressed against the inner peripheral surface of the terminal accommodating chamber,
Since the elastic piece has an elastic bending space and is elastically displaceably accommodated, the contact portion of the relay terminal accommodated in the housing,
Even if there is a displacement in the X-axis direction between the front plate and the back plate where the elastic piece exists between the mating tab terminal and the mating tab terminal, the displacement of the elastic piece causes the relay terminal itself to move in the housing in the X-axis direction. It is displaced and conforms to the inserted tab terminal and is smoothly connected. Further, since the contact portion is in the shape of a hollow quadrangular prism, there is a margin in the Y-axis direction orthogonal to the X-axis direction, and even if the tab terminal is displaced in the Y-axis direction with respect to the contact portion. , Can be connected smoothly.

Further, since the relay terminal of the present invention can be formed by winding a single plate material punched into a required shape, the structure is simple and the workability is high, and no assembly work is required.

Further, when the elastic pieces are arranged in an X-shaped cross, the pressure contact force of the elastic pieces on the inner peripheral surface of the housing is well balanced, and the posture of insertion into the housing is further stabilized. Further, by using the above-mentioned fitting means by the locking portion between the elastic pieces and the locking ridge on the side of the terminal accommodating chamber, when the relay terminal is inserted into the terminal accommodating chamber, the fitting means is a "snap". Because it fits
The feeling of inserting the relay terminal is improved.

"Example" Hereinafter, it demonstrates in detail based on an Example. Referring to FIGS. 1 and 2 showing an embodiment of the present invention, a receptacle relay terminal 3 of the present invention is formed by punching a single plate material into a required shape.
The hollow quadrangular prism is wound in a rectangular shape to form a hollow quadrangular prism, and the upper and lower ends of the hollow quadrangular prism are bent into the hollow portion 8 by bending the plate members on the opposite long sides into strips. And a pair of upper and lower receptacle contact portions 6 that respectively receive the tab terminals and conduct electricity.

Then, of the four wall plates 10 of the hollow quadrangular prism, the front plate 9A and the back plate 9B having the contact portions 6 are cantilevered by cutting out the wall plate 10 and protruding outward in a trapezoidal shape. Beam-shaped elastic piece 11
A11B are formed respectively. That is, the elastic piece 11A
Reference numeral 11B is a strip formed to press the inner peripheral surface 18 of the terminal accommodating chamber 2 and elastically lock the relay terminal 2 when the relay terminal 3 is accommodated in the terminal accommodating chamber 2. 11 'is the wall plate 10
It has a trapezoidal shape in which the free end 11 ″ inclines inward as well as protruding outward together with the front plate 9A and the rear plate 9 respectively.
The plate-shaped cantilever having the same shape is formed parallel to the vertical center line 13 of B. That is, since the elastic piece 11A11B is bulged outwardly, when housed in the terminal accommodating chamber 2, the elastic bending space of the elastic piece 11A11B is formed between the inner peripheral surface 18 and the front plate 9A and the rear plate 9B. It has a forming shape.

Then, the elastic pieces 11A and 11B are arranged as a pair at a diagonal position equidistant from the vertical center line 13 and the horizontal center line 12 on both the front plate 9A and the rear plate 9B, and at the same time, the front plate 9A and the rear plate 9B are arranged.
The four elastic pieces 11A and 11B of A and the back plate 9B are connected to the front plate 9A.
When viewed from one side of the back plate 9B, they are arranged diagonally so as to intersect each other in an X shape.

Further, the front plate 9A and the back plate 9B are arranged so that the free ends 11 ″ of the elastic pieces 11A and 11B face the horizontal center line 12, respectively.
And, it has a slope 14 parallel to the lateral center line 12, and this slope
The space between 14 is formed into a groove-shaped locking portion 15 fitted to a locking ridge 16A16B formed on the inner peripheral surface 18 of the terminal accommodating chamber 2, and the locking portion 15 and the locking ridge 16A16B are formed. By this, a fitting means of the relay terminal 3 to the housing 1 is configured.

On the other hand, the terminal accommodating chamber 2 of the housing 1 for accommodating the relay terminal 3 has an inner wall width W for accommodating the four elastic pieces 11A11B in a free state by slightly bending the elastic piece 11A11B. Locking ridges 16A and 16B that are fitted to the locking portions 15 are laterally provided on the inner peripheral surface 18 that is in contact with the face plate 9A and the back plate 9B so as to face each other.

Then, when the relay terminal 3 is inserted from the opening 17 below the terminal accommodating chamber 2, the elastic pieces 11A of the front plate 9A and the rear plate 9B are inserted.
The upper side portion of the trapezoid forming the top of 11B comes into contact with the inner peripheral surface 18 of the terminal accommodating chamber 2 and elastically bends slightly inward to be pressed into contact.
Furthermore, when pushed in, elastic pieces above the lateral center line 12
11A interferes with the locking ridges 16A16B, and the insertion force causes the elastic piece 11A to elastically bend inward, overcoming the locking ridges 16A16B, and subsequently the existing locking portion 15 to the locking ridges 16A16B. 2), the front plate 9A and the rear plate 9B of the relay terminal 3 and the inner peripheral surface of the terminal accommodating chamber 2 are fitted together.
Between 18 and 18 has the elastic bending space C of the elastic piece 11A11B,
It is inserted and locked at a predetermined position in the accommodation chamber 2. Then, the upper contact portion 6 is connected to the connector-side tab terminal 5A protruding into the terminal accommodating chamber 2, and then the lower contact portion 6 is attached to the device-side tab terminal 5B outside the housing 1.
Is inserted and attached, and is configured to electrically connect the pair of tab terminals 5A5B electrically. The terminal accommodating chamber 2 for receiving the width direction of the relay terminal 3 in which the elastic piece 11A11B does not exist has a shape for accommodating the inner peripheral surface 18 and the wall surface of the relay terminal 3 in close contact with each other, as shown in FIG. There is.

According to the relay terminal 3 of the embodiment of FIGS. 1 and 2 described above, the pair of elastic pieces 11A11 obliquely arranged on the front plate 9A and the rear plate 9B.
B is cross-arranged in the X shape between the front plate 9A and the rear plate 9B, and each press-contacts the inner peripheral surface 18, so that the contact pressure of the inner peripheral surface 18 acts in a well-balanced manner, and the relay terminal 3 is It is stably inserted and locked in the accommodation chamber 2. Then, at the time of the insertion, the locking portion 15 and the locking ridges 16A16B are fitted with "snap", so that the relay terminal 3 can be mounted with a good feeling.

Even if the thickness center line 19 of the tab terminal 5B on the device side is deviated from the insertion center line 7 of the contact portion 6 of the relay terminal 3 and there is a deviation E, the elastic resistance is generated by the insertion resistance of the tab terminal 5B.
Since 11A and 11B are elastically displaced in the elastic bending space C to align the insertion center line 7 with the tab terminal 5B, the tab terminal 5B can be extremely easily inserted and attached, and full electrical conduction can be achieved.

Since the relay terminal 3 is composed of a single member formed by bending a single plate material, it has excellent workability, requires no assembling work, is inexpensive, and is highly practical.

As for the elastic pieces 11A and 11B of the relay terminal 3 of the present invention, at least a pair of the front plate 9A and the back plate 9B may be provided. However, as another embodiment, each of the front plate 9A and the back plate 9B may be provided with four elastic pieces 11A11B arranged in an X shape. The locking stability is further improved.

[Advantages of the Invention] As described above, the relay terminal of the present invention has the advantage that even if the contact portion of the relay terminal in the housing and the tab terminal to be connected to the contact portion are misaligned in the biaxial direction. , The relay terminal is adaptively displaced in the housing and the tab terminal is smoothly received, so that the insertability of the terminal is improved and the contact portion is prevented from being deformed or damaged due to the presence of the positional deviation, and the electrical connection is prevented. It is possible to stabilize the performance. Further, it is a simple structure made of a single plate material, has excellent workability, and is provided at a low cost. There are various effects described above.

[Brief description of drawings]

FIG. 1 shows a relay terminal according to one embodiment of the present invention, (A) is a perspective view thereof, (B) is a front view thereof, (C) is a rear view of (B), and (D) is (B). Bottom view, (E) is a side view of (B), FIG. 2: Shows a relay terminal and a housing of one embodiment of the present invention, (A) is a side view showing the structure of the housing, (B)
Is a side view showing the use state of the relay terminal, (C) is a bottom view of (B), FIG. 3 is a side view showing the basic structure of a relay terminal having a conventional structure, and FIG. 4 is another relay having a conventional structure. A terminal is shown, (A) is a perspective view of the component, (B) is a side view of the insertion state Main code, 1: Housing, 2: Terminal accommodating chamber, 3: Relay terminal, 5: Tab terminal, 6: contact part, 8: hollow part, 9A:
Front plate, 9B: rear plate, 10: wall plate, 11A11B: elastic piece, 1
2: Horizontal center line, 13: Vertical center line, 14: hypotenuse, 15: locking part, 1
6: Locking ridge, 17: Opening part, 18: Inner peripheral surface, C: Elastic bending space, E: Deviation

Claims (3)

[Scope of utility model registration request] 1. A receptacle terminal, which is housed in a terminal housing chamber formed in a housing and is connected to a tab terminal inserted from an end of the housing, has a hollow rectangular column formed by winding a single plate material punched into a required shape. Four wall plates formed in a body shape and having a front plate and a back plate positioned in parallel, and the tab formed between the front plate and the back plate and inserted from an end of the housing The housing is formed on each of the contact portion for sandwiching the terminal, the front plate and the back plate, is bulged outward from the wall surfaces of the front plate and the back plate, and is elastically deformable. A cantilevered elastic piece that makes contact with the inner peripheral surface of the inner peripheral surface and the front plate and forms an elastic flexural space between the inner peripheral surface and the back plate. Relay terminal characterized by. 2. The relay terminal according to claim (1), characterized in that the elastic pieces are diagonally formed in pairs on each of the front plate and the back plate. . 3. A pair of elastic pieces formed on each of the front plate and the back plate has a cantilevered free end parallel to a horizontal center line between the front plate and the back plate. Claims for utility model registration characterized in that there is a slanting surface, and between these slanting surfaces, a locking portion fitted to a locking ridge formed on the inner peripheral surface of the terminal accommodating chamber is formed. Relay terminal of item (2).