JP6204129B2 - Terminal for electronic parts - Google Patents

Description

  The present invention relates to a terminal used for electrical connection of an electronic component such as a socket or a connector.

  A terminal used for electrical connection of an electronic component such as a socket or a connector needs to have a structure that is locked to the socket or the like so that it does not fall out even if the component is inserted or removed from the socket or the like. As an example of such a terminal, a spring terminal used in a lamp socket described in Patent Document 1 below will be described with reference to FIG.

  FIG. 6 shows terminals used for the lamp socket of the wedge base bulb. In the figure, reference numeral 10 denotes a wedge base bulb, and its base 11 is inserted into a lamp socket 40. The lamp socket 40 includes a spring terminal 34 formed of a plate-like metal having elasticity, and the spring terminal 34 is wedged via a conduction spring (not shown) that is a conduction portion for supplying power. The base 11 is brought into contact with a lead wire (not shown) provided on the base 11 of the base valve 10, and the wedge base valve 10 is prevented from falling off by a locking spring 34 a that is a pressing part that presses the base 11. It has a structure in which the upper part of the provided convex part 12a is pressed.

  Then, when the wedge base bulb 10 is pulled out from the lamp socket 40, the front end portion of the spring terminal 34 is provided with a locking end portion 34b and a locking end portion 34c so that the spring terminal 34 does not fall out of the lamp socket 40. When the wedge base bulb 10 is pulled out, the structure is provided and these portions are passed through the cylindrical auxiliary wall 23 provided in the upper portion of the housing 41 in the lamp socket 40 as shown in FIG. The upward force is supported by the portion of the locking end 34c, and the spring terminal 34 can be prevented from falling off.

JP-A-8-78118

However, the terminal having the conventional locking structure for preventing the drop-off as described above requires a fine bending process at the end of the terminal, and also assists for locking the portion to which the terminal is attached. Wall surfaces have to be formed separately, which complicates the structure and is cumbersome to assemble, leading to increased costs.
Therefore, the present invention has been made in view of the above-mentioned problems in the conventional structure, and in a terminal formed from a plate-like metal material used for an electronic component such as a socket or a connector, the present invention is reliable with a simple structure. The realization of highly reliable locking is a technical problem.

The above-described problem according to the present invention is solved by the following configuration.
(1) In a terminal formed from a plate-like metal material used for electrical connection of a lamp socket of a wedge base bulb , the terminal is formed to extend from one side edge of the main body part to one side. And a male terminal formed to extend from the other side edge of the main body part to the other side. The main body part has a cantilever that is locked to the housing of the lamp socket. A beam-shaped terminal lance is formed by cutting and raising so that a free end portion is located on one side and a root portion is located on the other side, and a portion that is more easily bent than the terminal lance is formed. vent hole, said one of the surrounding terminal lance, the three directions except for the direction of the base portion, said main body portion so that the sides are parallel to the drain hole of each side and box terminal lance Each be provided wherein the terminal.
( 2 ) A lamp socket of a wedge base bulb, comprising the terminal according to (1 ) above.

  According to the terminal having the above configuration (1), a locking structure can be realized simply by providing a terminal lance and a punched hole in the terminal. Therefore, it is necessary to perform a fine bending process on the end of the terminal as in the past. In addition, there is no need to provide an auxiliary wall surface on the side where the terminal is attached, and the terminal can be prevented from falling off with a simpler structure than the conventional one.

  In addition, simply installing a terminal lance pushes the terminal lance against the wall of the housing in the process of attaching the terminal to the housing such as a socket or connector. (Plastic deformation) and when installed, the protruding length of the terminal lance decreases, which may cause insufficient locking and fall off, which is difficult in terms of reliability. According to the invention, a through hole is provided in the vicinity of the terminal lance, thereby forming a portion that bends more easily than the terminal lance, so that in the process of attaching the terminal to a housing such as a socket or a connector, the terminal lance is preceded. Because the surrounding area bends, the force applied to the terminal lance is reduced, and it deforms irreversibly before reaching the installation position. No Rukoto, As a result, no protruding length of the terminal lance is reduced when it is installed, it is possible to maintain a sufficient projection length can prevent fall out of the terminal.

Further, according to the terminal having the above configuration ( 1 ), the spring terminal of the lamp socket of the wedge base bulb, which requires a large force when being pulled out, includes a terminal lance and forms a portion that is more easily bent than the terminal lance. Since the punching hole is provided in the vicinity of the terminal lance, it is possible to realize a lamp socket having a simple structure as described above and having no terminal dropout.

Further, according to the terminal having the configuration ( 1 ), the spring terminal of the lamp socket is formed on the main body part, the locking spring and the conduction spring formed on one side of the main body part, and on the other side of the main body part. The terminal lance is provided on the main body portion, and the terminal lance is provided in three directions excluding the direction on the other side, which is the direction of the root portion of the terminal lance. Since the punched hole is provided, in the process of attaching the spring terminal to the housing of the lamp socket, the peripheral portion can be deformed smoothly before the terminal lance, and the force applied to the terminal lance can be effectively reduced. In addition, since there are no punch holes in the other side of the terminal lance around the terminal lance, the terminal lance is sufficient when force is applied to the spring terminal in the pulling direction. You can take power.

Further, according to the configuration of the wedge base bulb of the lamp socket (2), said by using a spring pin as described in (1), a simple structure, without be coming off the wedge base bulb lamp socket Can be realized.

  According to the terminal according to the present invention, a terminal formed of a plate-like metal material used for an electronic component can be realized with a simple structure and a terminal that does not fall out. Therefore, the terminal according to the present invention is used. Thus, an inexpensive and highly reliable electronic component can be provided.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

It is a perspective view which shows the terminal which concerns on one Embodiment of this invention. It is a perspective view which shows the electronic component to which the terminal of FIG. 1 is applied. It is sectional drawing which shows the mode at the time of starting at the time of inserting the terminal of FIG. 1 in an electronic component. It is sectional drawing which shows the mode in the middle of inserting the terminal of FIG. 1 in an electronic component. It is sectional drawing which shows the mode at the time of completion | finish at the time of inserting the terminal of FIG. 1 in an electronic component. It is sectional drawing which shows the terminal of the conventional electronic component.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an example in which the present invention is applied to a spring terminal in a lamp socket of a wedge base bulb. FIG. 2 schematically shows the housing of the lamp socket in which the spring terminal of FIG. 1 is incorporated and the wedge base bulb attached to the lamp socket.

  In FIG. 1, reference numeral 130 denotes a spring terminal in a lamp socket of a wedge base bulb, which is formed by bending one heat-resistant copper alloy plate. The spring terminal 130 is pressed on one side A of the main body part 139 to press the wedge base valve and the conduction spring 132 that is a conduction means for making electrical contact with the wedge base valve, thereby preventing the spring terminal 130 from coming off. A locking spring 131 as means is provided. A connector male terminal 133 is provided on the other side B of the main body portion 139.

  The main body portion 139 is provided with a terminal lance 134 for locking the spring terminal 130 with the housing 140 of the lamp socket 120 shown in FIG. In three directions excluding the direction of B which is the direction of the root portion 137 of 134, that is, in the directions of A, C and D, a total of three substantially rectangular cutouts are made so that the sides of the terminal lance 134 are parallel to each other. A hole 135 is provided. Here, each punch hole 135 is provided in the vicinity of the terminal lance 134 so that a portion 136 surrounded by each punch hole 135 and the terminal lance 134 bends more easily than the terminal lance 134.

3 to 5 are views showing a state in which the spring terminal 130 is inserted into the housing 140 in order to incorporate the spring terminal 130 in which the terminal lance 134 is formed into the housing 140 of the lamp socket 120. First, the spring terminal 130 is inserted along a guide (not shown) of the housing 140. FIG. 3 shows a state when the insertion is started. At this time, the portion of the main body portion 139 of the spring terminal 130 where the terminal lance 134 is provided is out of the housing 140.
4 shows a state when the spring terminal 130 is further inserted from the state of FIG. 3 and just before reaching the installation position, and FIG. 5 shows that the insertion of the spring terminal 130 is completed. The state when the spring terminal 130 is inserted to the installation position is shown.

  Here, the hole 142 is a hole that is formed larger than the terminal lance 134 so that the terminal lance 134 can protrude at the installation position, and 141 is the terminal lance 134 in the housing 140. When a force in the pulling direction (left direction in FIG. 5) is applied to the spring terminal 130 when pulling out the wedge base valve 110, the terminal lance 134 is hooked on the contacting portion 141. The spring terminal 130 is prevented from falling off.

  The holding portion 143 formed in the region where the terminal lance 134 is installed is provided to prevent the spring terminal 130 from moving upward and the terminal lance 134 from shifting upward from the contact portion 141. However, in this embodiment, it is provided at a position corresponding to a portion close to C and D on the upper surface of the main body portion 139 of the spring terminal 130, so that it can be easily inserted. Is inclined. Further, the portion other than the pressing portion 143 in the region where the terminal lance 134 is installed has a structure with a slight margin in height than the pressing portion 143 so that the terminal lance 134 can easily pass during insertion.

Next, in this embodiment, the effect | action by providing the punch hole 135 around the terminal lance 134 is demonstrated using FIGS.
If it is assumed that the punch hole 135 is not provided around the terminal lance 134, the main body part 139 of the spring terminal 130 is hardly bent except for the terminal lance 134. Even when proceeding to this point, the main body portion 139 keeps its original planar shape. Accordingly, the terminal lance 134 is strongly pressed against the wall surface of the housing 140 and bends until it is substantially flush with the main body portion 139. As a result, before the terminal lance 134 reaches the installation position, the terminal lance 134 is irreversibly deformed (plastic deformation), and the protrusion length d is reduced.

Then, when the spring terminal 130 reaches the installation position as shown in FIG. 5 (the state in which the spring terminal 130 is completely inserted), the contact between the terminal lance 134 and the contact portion 141 of the housing 140 is reached. Sufficient catching cannot be ensured, and when the wedge base bulb 110 is pulled out from the lamp socket 120, the terminal lance 134 may disengage the contact portion 141, and the spring terminal 130 may fall out of the housing 140.
Therefore, when the hole 135 is not provided around the terminal lance 134, it is difficult to obtain high reliability.

On the other hand, in the case of the present embodiment, a punch hole 135 is formed in the vicinity of the terminal lance 134 for forming a portion 136 that is more easily bent than the terminal lance 134. Therefore, high reliability can be obtained.
That is, as will be described in detail with reference to FIG. 4, since the portion 136 that is more easily bent than the terminal lance 134 is formed by the punch hole 135, the spring terminal 130 advances inside the housing 140 and the main body portion 139. , The portion 136 of the main body portion 139 that bends more easily than the terminal lance 134 first bends. As a result, the portion around the terminal lance 134 in the main body portion 139 is shown in FIG. As shown, it will be deformed into a curved surface.

Therefore, although the terminal lance 134 is pressed against the wall surface of the housing, the terminal lance 134 does not bend until it is substantially flush with the body portion 139 of the spring terminal 130 as in the case where there is no punch hole 135. Since it will bend to the extent described, it is possible to avoid irreversibly deforming the terminal lance 134 before the terminal lance 134 reaches the installation position.
As a result, the projecting length d of the terminal lance 134 when installed is not reduced, and the hook between the terminal lance 134 and the contact portion 141 of the housing 140 can be sufficiently secured, which is favorable. Locking can be realized, and when the wedge base bulb 110 is pulled out from the lamp socket 120, it is possible to prevent the terminal lance 134 from coming off the contact portion 141 and the spring terminal 130 from falling out of the housing 140.
Further, in the present embodiment, since there is no punch hole in the direction B, which is the direction of the root portion 137 of the terminal lance 134, around the terminal lance 134, the direction of pulling out to the spring terminal 130 (FIG. 5). When a force in the left direction is applied, the terminal lance 134 can sufficiently receive the force.

  As described above, in the present embodiment, the hole 135 is provided in the vicinity of the terminal lance 134 so that the portion 136 surrounded by each hole 135 and the terminal lance 134 bends more easily than the terminal lance 134. Accordingly, it is possible to realize a reliable locking with a simple structure so that the spring terminal 130 does not fall out of the housing 140, and it is possible to provide an inexpensive and highly reliable lamp socket.

In addition, although the installation position of the terminal lance 134 and the punch hole 135 in the main body portion 139 of the spring terminal 130 is not particularly limited, in the present embodiment, these are approached from the center of the main body portion 139 to the conduction spring 132. It is offset in the direction, that is, in the direction away from the locking spring 131. By doing so, in the main body portion 139, the portion connected to the locking spring 131 to which a large force is applied when the wedge base valve is pulled out can be separated from the punched hole 135 and the easily bent portion 136. Sufficient strength can be ensured in a portion connected to the locking spring 131 in the main body portion 139.
Furthermore, in the present embodiment, the size of the hole on the non-offset side (locking spring 131 side) of the hole 135 is larger than the size of the hole on the offset side (conduction spring side). Is also formed large. By doing so, the easily bent portion 136 can be bent flexibly and the spring terminal 130 can be reduced in weight while having sufficient strength.

The shape and position of the punch hole 135 are not particularly limited as long as the function of forming the portion 136 that bends more easily than the terminal lance 134 can be realized. As described above, the rectangular pierced hole is formed so that each side of the terminal lance 134 and each side of the punched hole 135 are parallel to each other, and an easily deflecting portion 136 formed around the terminal lance 134 is provided. A through hole 135 is formed so as to be substantially symmetric with respect to an axis S passing through the center of the terminal lance 134.
By doing so, when the spring terminal 130 is inserted into the housing 140, the peripheral portion of the terminal lance 134 bends evenly, so that it is possible to prevent a biased force from being applied to the terminal lance 134. The possibility of irreversible deformation is further reduced, and the dropout is less likely to occur.

Here, the characteristics of the embodiments of the terminal according to the present invention described above will be briefly summarized below.
(1) In a terminal (spring terminal) 130 formed of a plate-like metal material used for electrical connection of an electronic component (lamp socket) 120,
The terminal (spring terminal) 130 includes a terminal lance 134 that is locked to the housing 140 of the electronic component (lamp socket) 120, and
A terminal (spring terminal) 130, wherein a hole 135 for forming a portion 136 that bends more easily than the terminal lance 134 is provided in the vicinity of the terminal lance 134.
(2) The electronic component (lamp socket) 120 is a lamp socket 120 of a wedge base bulb, and the terminal is a spring terminal 130 including a locking spring 131 and a conduction spring 132. The terminal as described in 1).
(3) The spring terminal 130 includes a main body portion 139, the locking spring 131 and the conduction spring 132 formed on one side of the main body portion 139, and a male terminal formed on the other side of the main body portion 139 ( Connector male terminal) 133,
The terminal lance 134 is provided in the main body portion 139, and the punched holes 135 are provided in three directions around the terminal lance 134 excluding the direction of the root portion 139. A terminal (spring terminal) 130 according to 2).
(4) The lamp socket 40 of the wedge base bulb 10 including the terminal (spring terminal) 130 according to any one of (1) to (3) above.

  As mentioned above, although embodiment of this invention has been explained in full detail using drawing, the said embodiment is only a mere illustration, This invention is not limited to embodiment mentioned above, A deformation | transformation is carried out suitably. Improvement, etc. are possible. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 10 ... Wedge base valve 11 ... Base 23 ... Auxiliary wall 34 ... Terminal 40 ... Lamp socket (electronic component)
41 ... Housing 110 of lamp socket ... Wedge base bulb 120 ... Lamp socket 130 ... Spring terminal (terminal)
131 ... Locking spring 132 ... Conducting spring 133 ... Connector male terminal (male terminal)
134 ... terminal lance 135 ... punch hole 136 ... portion 137 that bends more easily than the terminal lance ... root portion 139 of the terminal lance ... main body portion 140 ... housing 141 of the lamp socket ... contact portion 142 ... hole

Claims (2)

In a terminal formed of a plate-like metal material used for electrical connection of a lamp socket of a wedge base bulb ,
The terminal includes a body portion, a locking spring and a conduction spring formed to extend from one side edge of the body portion to one side, and a male formed to extend from the other side edge of the body portion to the other side. With terminals,
In the main body portion, a cantilever-shaped terminal lance that is locked to the housing of the lamp socket is formed by cutting and raising so that a free end portion is located on the one side and a root portion is located on the other side. And
Holes for forming a portion that bends more easily than the terminal lance are formed in three directions in the periphery of the terminal lance, excluding the direction of the root portion, and the sides of the terminal lance and the rectangular holes. Terminals provided on the main body so that each side of the main body is parallel to each other . A lamp socket for a wedge-based bulb, comprising the terminal according to claim 1.

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