JP2001196260A - Electronic component with terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component having a terminal for preventing a coupled resonance point by avoiding electronic components from being joined with a conductive joining member when the electronic components and the terminal part are joined with the conductive member. SOLUTION: The electronic component 10 with a terminal has a terminal part 2 connected to a plurality of electronic components 1 with a conductive connection member 3. In the electronic components 1, the connection member 3 at its fixing part to the terminal part 2 is put in a separated state to each other in a space between the electronic components 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal-mounted electronic device in which at least two or more electronic components, such as a multilayer ceramic capacitor, are connected to only terminal components via conductive connecting members, and the terminal components are surface-mounted. Related to parts.

[0002]

2. Description of the Related Art Conventionally, electronic components for surface mounting include various components such as ceramic capacitors and ceramic varistors. When an electronic component is mounted on a circuit board made of aluminum, the electronic component may be damaged due to thermal expansion and thermal contraction of the aluminum substrate, resulting in deterioration of characteristics.

In order to alleviate the thermal expansion / shrinkage stress from the circuit board, one or more electronic components are overlapped, and metal terminal components are fitted or soldered to the external electrodes of the electronic components. Further, there has been proposed a configuration in which terminal components are mounted on a circuit board by soldering.

[0004] The terminal parts have a U-shape (for example, see JP-A-10-312932), a folded type (for example, see JP-A-11-233370), and an L-type (for example, Japanese Utility Model No. No. 14458, and the like) have been commercialized.

FIG. 22 is a perspective view showing an electronic component with an L-shaped terminal as a prior art example. FIG. 23 is a side view of a part of the electronic component of FIG. Referring to FIG. 22 and FIG. 23, the terminal-attached electronic component 70 is formed by superposing a plate-shaped electronic component 1 having external electrodes 1a, 1a provided so as to cover both ends thereof, and placing the terminal component 11b on this.
L-shaped terminal component 11, 1 having a frame plate 11c
1, the terminal component 11 and the external electrodes of the respective electronic components 1 are fixed by the connection member 3, for example, solder. In this case, a part 3a of the connection member also enters the gap between the upper and lower external electrodes of the electronic component.

[0006]

As described above, when a plurality of electronic components are incorporated into a terminal component, the electronic components are directly fixed at the external electrode portions of the electronic component by solder for connecting the electronic component to the terminal component. Then, in addition to the original mechanical resonance point of the electronic component, a coupling resonance point caused by fixing the electronic components appears, and the resonance characteristic may be inferior to that of the electronic component body. However, when the electronic components are connected via the terminal components, no coupling resonance point occurs. In this case, the electronic components may be in contact with each other.

Therefore, a technical problem of the present invention is to connect electronic components and terminal components via a conductive connecting member by preventing the electronic components from being fixed by the conductive connecting member. An object of the present invention is to provide a terminal-equipped electronic component that does not generate a resonance point and has good resonance characteristics.

[0008]

According to the present invention, there is provided an electronic component with terminals including a plurality of electronic components and a conductive terminal component for fixedly connecting the electronic components via a conductive connecting member. The terminal-provided electronic component is characterized in that the connecting members in the fixing portions of the plurality of electronic components to the terminal component are provided apart from each other between the individual electronic components.

In such an electronic component with a terminal according to the present invention, when the terminal component and the electronic component are connected by the conductive connecting member, the electronic components are not fixed by the connecting member, and no coupling resonance occurs.

According to the present invention, there is provided an electronic component with terminals including a plurality of electronic components and a conductive terminal component for connecting the electronic components via a conductive connecting member.
At least an external electrode portion between the plurality of electronic components,
By inserting a thin plate-shaped non-connecting member that is incompatible with the conductive connecting member, the connecting members in the fixed portion of the terminal component and the electronic component are separated from each other between the individual electronic components. An electronic component with a terminal, characterized in that it is provided, is obtained.

In the terminal-equipped electronic component of the present invention, when the terminal component and the electronic component are connected by the conductive connection member, the electronic components are not fixed by the connection member.
No coupling resonance occurs.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view showing an electronic component with terminals according to an embodiment of the present invention, FIG. 2 is a side view showing a part of the electronic component with terminals in FIG. 1, and FIG. FIG. 3 is a perspective view showing a terminal component of the electronic component with terminal shown in FIGS. 1 and 2.

As shown in FIG. 1, an electronic component 10 with terminals
Are two electronic components 1, 1 and external electrodes 1a, 1a, 1 provided at both ends in the longitudinal direction of the electronic components 1, 1, respectively.
a, 1a, and a connection member 3 such as a solder or a conductive resin, and terminal components 2 and 2 made of a metal and a pair of conductive terminal electrodes. In the illustrated example, the one provided with the two electronic components 1 is shown,
More than two electronic components 1 may be used.

Each of the pair of terminal components 2 and 2 has a terminal plate portion 2b and a terminal plate 2b opposed to each other so as to sandwich the electronic component 1 and 1 via external electrodes 1a and 1a provided on the electronic component 1. A pair of frame plate portions 2c, 2c which are bent at substantially right angles and in the same direction from two parallel sides of the portion 2b are bent into an L-shaped side surface. Since the terminal plate portion 2b corresponding to between the electronic components 1 forms the overhang portion 2a which protrudes outward in a semicircular shape, the adjacent external electrodes 1a of the electronic components 1, 1 and the terminal component 2 are connected to each other. Are connected to the hatched portions 2d in FIG. 3 respectively, and the external electrodes 1a, 1a and the terminal components 2 on the same side are respectively connected.
A space is provided between them.

In the electronic component with terminal 10 according to the first embodiment, there is a space between the external components 1a and 1a adjacent to the electronic components 1 and 1 and the terminal component 2, respectively. Accordingly, the portion where the electronic component 1 and the terminal component 2 are connected via the connecting member 3 is inevitably separated from the portion where the electronic components 1 and 1 are adjacent to each other. It is possible to prevent coupling resonance caused by fixing the members by the connecting member. Further, by making the overhang portion 2a incompatible with solder, it is possible to more effectively prevent the intrusion of solder.

Here, specifically, in the first embodiment of the present invention, the two electronic components 1 and 1 are ceramic capacitor elements, and a pair of external electrodes 1a and a pair of external electrodes 1a are connected by connecting members 3 made of solder. The terminal components 2 are mutually connected.

The electronic component 1 and the solder as the connecting member 3 and the terminal component 1 are provided by the overhanging portion 2a provided on the terminal plate portion 2b.
2 is as shown in FIG. 2, and the electronic components are not fixed to each other by soldering.

FIG. 4 shows, for comparison, electrostriction data of a ceramic capacitor with terminals when the electronic components 1 and 1 are fixed to each other by soldering, and FIG. 5 shows an electronic component according to the first embodiment of the present invention. It is a figure showing an example of electrostriction data of a ceramic capacitor with a terminal when not mutually fixed by solder.

In the comparative example shown in FIG. 4, on the curve 100 showing the frequency characteristic, around 100 kHz and 200 to 300 kHz.
In addition to the resonance point inherent to the electronic component, the coupling resonance point 10
1, 102, 103 and 104 can be seen. In the electronic component with terminal according to the first embodiment of the present invention shown in FIG.
The resonance point of the coupling around 00 kHz and around 200 to 300 kHz disappears.

(Second Embodiment) FIG. 6 shows a second embodiment of the present invention.
FIG. 7 is a perspective view showing an electronic component with terminals according to the embodiment of FIG. 7, FIG.
FIG. 7 is a perspective view showing a terminal component of the electronic component with terminal in FIG. 6.

Referring to FIGS. 6 to 8, an electronic component with terminals 20 includes two electronic components 1, 1 and external electrodes 1a, 1a provided at both longitudinal ends of the electronic components 1, 1.
And a connection member 3 such as a solder or a conductive resin connected to each of them, and a terminal electrode as a pair of metal and conductive terminal components 5. In the illustrated example, two electronic components are provided, but it goes without saying that more than two electronic components 1 may be provided.

As best shown in FIG. 7, each of the pair of terminal components 5, 5 connects the electronic component 1, 1 via the respective external electrode 1a, 1a provided on the electronic component 1, 1. The terminal plate portion 2b and the pair of frame plate portions 2c which are bent at substantially right angles and in the same direction from two parallel sides of the terminal plate portion 2b so as to sandwich the terminal plate portion 2b are bent into an L-shaped side surface. Have been. Also, a hatched portion 2e in FIG.
As shown in the figure, the inside of the terminal plate portion 2b corresponding to between the one electronic component 1 and the other electronic component 1 is solder-incompatible.

Further, in the second embodiment of the present invention, specifically, the two electronic components 1 and 1 are ceramic capacitor elements, and the external electrode 1a and the pair of terminals are connected by a connecting member 3 made of solder. Parts 5 are interconnected.

The connection positions of the electronic components 1, 1 and the solder and the terminal components 5, 5 are as shown in FIG. 7, so that the electronic components 1, 1 are not fixed to each other by the solder. In such electronic components with terminals 20 according to the second embodiment of the present invention, the non-solder affinity between the external components 1a and 1a and the terminal components 5 where the electronic components 1 and 1 are adjacent to each other. Since the part 2e is provided, the solder does not blend in. Therefore, when the electronic components 1, 1 are connected to the terminal components 5, 5, the solder as the connecting member 3 is applied to the portion where each of the electronic components 1, 1 is adjacent. There is no intrusion.

Therefore, the electronic components 1 and 1 are connected to each other by the connecting member 3.
It is possible to prevent the coupling resonance caused by the fixing.

(Third Embodiment) FIG. 9 shows a third embodiment of the present invention.
FIG. 10 is a perspective view showing a terminal component of the electronic component with terminals according to the embodiment, and FIG. 10 is a front view showing a contact side of the terminal component of FIG. 9 with the electronic component. The configuration of the other parts of the electronic component with terminals according to the third embodiment is the same as that according to the second embodiment.

Referring to FIG. 9 and FIG. 10, the solder non-affinity portion (the solder non-affinity surface 6d in FIG. 10) has at least an electronic component so that it can be arbitrarily set to a portion where the electronic component 1 and the terminal component 6 are to be connected. Solder non-affinity surface 6 between components 1 and 1
d is set.

The terminal component 6 according to the third embodiment
Also, the same effects as those of the terminal component 5 according to the second embodiment can be obtained.

(Fourth Embodiment) FIG. 11 is a front view showing a terminal part of an electronic component with terminals according to a fourth embodiment of the present invention, viewed from the same position as the terminal part of FIG. It is. As shown in FIG. 11, the configuration of the other parts except for one surface of the terminal component 7 is the same as that of the terminal-equipped electronic components according to the second and third embodiments, and therefore only different parts will be described.

As shown in FIG. 11, on the inner surface of the terminal plate portion 7b of the terminal component 7, a portion other than the circular solder connection surface 7a is a solder non-affinity surface 7d on which no solder is placed.

The effect of the terminal component 7 according to the fourth embodiment is almost the same as that according to the third embodiment.

(Fifth Embodiment) FIG. 12 is a perspective view showing an electronic component with terminals according to a fifth embodiment of the present invention.
13 is a side view showing a part of the electronic component with terminals shown in FIG. 12, and FIG. 14 is a perspective view showing the terminal component shown in FIG.

As shown in FIGS. 12 to 14, the electronic component with terminals 30 includes two electronic components 1, 1 and external electrodes 1a, 1a provided at both ends in the longitudinal direction of the electronic component 1, respectively.
1a is provided with a connection member 3 such as solder or conductive resin to be connected to each of the terminals 1a, and a pair of terminal parts 8, 8 made of metal and conductive terminal electrodes. 12 through FIG.
In the example of No. 3, only the one provided with two electronic components 1 and 1 is shown, but the electronic component with terminal according to the embodiment of the present invention is applied to the case where more than two electronic components 1 are provided. Of course you can.

Each of the pair of terminal components 8 is connected to an electronic component 1 via an external electrode 1 a provided on the electronic component 1.
The terminal plate portion 8b and the terminal plate portion 8 which face each other so as to sandwich
b is bent into a lateral L-shape by a pair of frame plate portions 8c which are bent at substantially right angles and in the same direction from two sides parallel to each other. Also, the electronic component 1 and the terminal component 8
Is provided with a square hole 8d corresponding to the number of electronic components and the positions of the external electrodes, and the periphery of the hole 8d is formed in a rectangular cylindrical shape. The structure is provided with an overhang portion 8a that projects toward the component 1 side.

In the terminal-equipped electronic component 30 according to the fifth embodiment of the present invention, the space between the external electrodes 1a, 1a where the electronic components 1, 1 are adjacent and the terminal components 8, 8 is provided. Due to such a structure, a portion where the electronic component 1 and the terminal component 8 are inevitably connected via the connecting member 3 is separated from a portion where each of the electronic components 1 and 1 is adjacent, It is possible to prevent coupling resonance that occurs when the electronic components 1 and 1 are fixed to each other by the connection member 3.

(Sixth Embodiment) FIG. 15 is a view showing an electronic component with terminals according to a sixth embodiment, and FIG.
5 is a side view showing a part of the terminal-equipped electronic component, and FIG. 17 is a perspective view showing the electronic component of FIG.

As shown in FIGS. 15 to 17, the electronic component 40 with terminals is composed of two electronic components 1, 1 and an electronic component 1, 1.
1 has a connection member 3 such as solder or conductive resin connected to each of the external electrodes provided at both ends in the longitudinal direction, and a terminal component 11 made of a metal and a pair of conductive terminal electrodes.

Each of the pair of terminal components 11 has a pair of terminal plate portions 11b opposed to each other so as to sandwich the electronic components 1, 1 via external electrodes provided on the electronic components 1, 1.
And a pair of frame plate portions 11c which are bent at substantially right angles and in the same direction from two parallel sides of the terminal plate portion 11b, respectively.

As best shown in FIG. 17, the external electrodes of the electronic components 1 and 1 have a base electrode 1b provided so as to cover one end and an upper electrode 1 provided at the center of the end face.
c is divided into two layers. The base electrode 1b is a layer that is in direct contact with the ceramic that is the main body of the electronic component, and the upper electrode 1c is a layer that is provided outside on the base electrode.

The base electrode 1b is made of a material which has no affinity for solder, while the upper electrode 1c is made of a material which has solder affinity. By setting the upper electrode 1c only at a portion connected to the terminal component 11, the solder, which is the connection member 3 for connecting the terminal component 11 and the electronic component 1, can be connected to the external component to which each of the electronic components 1, 1 is adjacent. This prevents entry between the electrodes.

Therefore, the electronic components 1 and 1 are connected to each other by the connecting member 3.
It is possible to prevent the coupling resonance caused by the fixing. Note that the base electrode 1b may be a ceramic material itself, which is a main body of an electronic component to which the base electrode is not applied, as long as the surface has no affinity for solder.

In the example shown in FIGS. 15 and 16, an example having two electronic components 1 is shown.
Even if the electronic component 1 is provided with more than
Of course, the structure according to the embodiment can be applied.

(Seventh Embodiment) FIG. 18 is a perspective view of an electronic component with terminals according to a seventh embodiment of the present invention.
9 is a side view showing a part of the electronic component with terminals in FIG. 18, and FIG. 20 is an exploded perspective view of the electronic component with terminals in FIG.

As shown in FIGS. 18 to 20, the electronic component with terminal 50 has two electronic components 1, 1 and an electronic component 1, 1.
External electrodes 1 provided at both ends in the longitudinal direction
a, 1a, 1a, 1a, and a connecting member 3 such as a solder or a conductive resin, and a pair of terminal parts 11, 11 made of metal and forming a pair of conductive terminal electrodes.

Each of the pair of terminal parts 11, 11
Terminal plate portion 11 opposed to sandwich electronic component 1, 1 via external electrode 1a provided on electronic component 1, 1
b and the frame plate portion 11b which is bent at substantially right angles and in the same direction from two parallel sides of the terminal plate portion 11b to be bent into an L-shaped side surface.

Between the electronic component 1 and the other electronic component, a non-conductive thin plate 12 that is incompatible with the connecting member is provided so as to be sandwiched between the electronic components 1 and 1. Have been.

Specifically, the two electronic components 1, 1 are ceramic capacitor elements, and the external electrodes 1a, 1a, 1a, 1a and the pair of terminal components 11, 11 are mutually connected by the solder as the connecting member 3. Connected but disconnected member 1
2, the electronic components 1 and 1 are not connected to each other. still,
As the non-connection member 12 shown in FIGS. 18 to 20, alumina which has good heat resistance and does not adapt to solder is used, but is made of a material which has good heat resistance and does not adapt to solder. Then, of course, it can be used. In addition, in the examples shown in FIGS. 18 to 20, the case where two electronic components 1 are provided is shown, but the non-connecting member 13 is similarly connected to each of more than two electronic components 1. By providing between the electronic components 1, 1, the electronic components 1, 1
It is clear that the same effect as in the case of the individual is achieved.

As described above, in the seventh embodiment of the present invention, the connection position between the electronic component 1 and the solder as the connecting member 3 and the terminal component 11 are as shown in FIG. The structure is such that they are not fixed by solder.

(Eighth Embodiment) FIG. 21 is a side view showing an electronic component with terminals according to an eighth embodiment of the present invention. As shown in FIG. 21, the electrode component with terminals according to the eighth embodiment has the same configuration as that according to the seventh embodiment except that the non-connection members 13 are formed separately at both ends. Have.

That is, as shown in FIG.
The non-connection members 13 are inserted only between the external electrodes of the respective electronic components so as not to short-circuit 1. The non-connection member may be conductive as long as it does not short-circuit the electronic components 1 and 1. In addition, a material that does not have affinity with the connection member 3 may be used, or a non-affinity material may be added to the affinity material. Further, it may be integrated with the terminal component.

As described above, in the eighth embodiment of the present invention, the connection position between the electronic component and the solder and the terminal component is determined as shown in FIG.
As a result, the electronic component is not fixed to each other by soldering, and the same effect as that of the seventh embodiment can be obtained.

[0053]

As described above, the electronic component according to the present invention has a terminal including a plurality of electronic components and a conductive terminal component for connecting these electronic components via a conductive connecting member. In the electronic component, in addition to the electrostriction resonance point inherent to the electronic component, the occurrence of a coupling resonance point caused by each electronic component being connected by the connecting member connecting the electronic component and the terminal component is prevented, and good resonance characteristics are obtained. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electronic component with terminals according to an embodiment of the present invention.

FIG. 2 is a side view showing a part of the terminal-equipped electronic component of FIG. 1;

FIG. 3 is a perspective view showing a terminal component of the electronic component with terminal shown in FIGS. 1 and 2;

FIG. 4 is a diagram showing, for comparison, electrostriction data of a terminal-attached ceramic capacitor when the electronic components 1 and 1 are fixed to each other by soldering.

FIG. 5 is an electronic component 1 according to the first embodiment of the present invention.
It is a figure which shows the example of the electrostriction data of the ceramic capacitor with a terminal when 1 is not fixed by solder.

FIG. 6 is a perspective view showing an electronic component with terminals according to a second embodiment of the present invention.

FIG. 7 is a side view showing a part of the electronic component with terminals of FIG. 6;

8 is a perspective view showing a terminal component of the electronic component with terminal shown in FIG. 6;

FIG. 9 is a perspective view showing a terminal component of an electronic component with terminals according to a third embodiment of the present invention.

10 is a view showing a contact side of the terminal component of FIG. 9 with an electronic component.

FIG. 11 is a front view showing a terminal component of an electronic component with terminals according to a fourth embodiment of the present invention.

FIG. 12 is a perspective view showing an electronic component with terminals according to a fifth embodiment of the present invention.

13 is a side view showing a part of the electronic component with terminals of FIG. 12;

FIG. 14 is a perspective view showing the terminal component of FIG.

FIG. 15 is a perspective view showing an electronic component with terminals according to a sixth embodiment of the present invention.

16 is a side view showing a part of the electronic component with terminals in FIG.

FIG. 17 is a perspective view showing the electronic component of FIG.

FIG. 18 is a perspective view of an electronic component with terminals according to a seventh embodiment of the present invention.

19 is a side view showing a part of the electronic component with terminals shown in FIG. 18;

20 is an exploded perspective view of the electronic component with terminals in FIG. 18;

FIG. 21 is a side view showing an electronic component with terminals according to an eighth embodiment of the present invention.

FIG. 22 is a perspective view showing an electronic component with an L-shaped terminal as a prior art example.

FIG. 23 is a side view of a part of the electronic component of FIG. 22;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 electronic component 1a external electrode 1b base electrode 1c upper ground electrode 2,5,6,7,8,11 terminal component 2a, 8a overhang 2b, 7b, 8b terminal plate 2c, 8c frame plate 3 connection member 3a Part of connection member 6d, 7d Solder non-affinity surface 7a Solder connection surface 8d Hole 10, 20, 30, 40, 50, 60, 70 Electronic component with terminal 12, 13 Non-connection member 101, 102, 103, 104 Coupling Resonance point

Claims (2)

[Claims] 1. An electronic component with terminals comprising: a plurality of electronic components; and a conductive terminal component for fixedly connecting the electronic components via a conductive connection member, wherein: An electronic component with a terminal, wherein the connection members in the portion fixed to the terminal component are provided apart from each other between the individual electronic components. 2. An electronic component with terminals including a plurality of electronic components and a conductive terminal component for connecting the electronic components via a conductive connection member, wherein at least an external component between the plurality of electronic components is provided. By inserting a thin plate-shaped non-connection member that is incompatible with the conductive connection member in the electrode portion, the connection member in the fixed portion of the terminal component and the electronic component can be inserted between the individual electronic components. An electronic component with terminals, which is provided apart from each other.