JP2009290096A - Electronic component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically interrupt energization after destruction even when an electronic component element after the destruction becomes fragments close to pieces in an electronic component whose electronic component element may be deteriorated to result in destruction in energization. <P>SOLUTION: The electronic component is provided with: the electronic component element; a support means including first and second terminal members each consisting of spring contact segments and a column support member to support the electronic component element; and a case for storing the electronic component element, and the first and second terminal members, wherein the first and second column support members are installed in first and second storage parts consisting of electric insulation members, respectively, and is formed so that volume of a space to be formed between a virtual cross section of the case assumed so as to include an edge with longer distance with the bottom surface of the case of edges facing the bottom surface of the case in the first and second spring contact segments becomes larger than volume of the electronic component element. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic component including an electronic component element having electrodes formed on opposite surfaces, and in particular, the electronic component element is supported by a supporting unit that also serves as a power feeding unit that elastically contacts each electrode. The present invention relates to an electronic component having a structure.

  An example of an electronic component that is of interest to the present invention is a positive temperature coefficient thermistor device. The positive temperature coefficient thermistor device is used for current limiting in, for example, a motor starting circuit such as a refrigerator, a demagnetizing circuit of a cathode ray tube such as a television receiver, and a monitor display device.

  One conventional structure example of such a positive temperature coefficient thermistor device is shown in FIG. FIG. 7 is a plan view of the positive temperature coefficient thermistor device 100 as seen from the bottom surface direction of the case body 102, where the lid 103 is shown in a removed state. The positive temperature coefficient thermistor device 100 closes the case body 102, the positive temperature coefficient thermistor element 104 and the first and second terminal members 107 and 112 accommodated in the case main body 102, and the lower opening of the case main body 102 to And a lid 103 that forms a bottom surface.

  The positive temperature coefficient thermistor element 104 has a disk shape as a whole, and the first and second electrodes 105 and 106 are formed to face each other. The positive temperature coefficient thermistor element 104 is inserted into the central portion of the case body 102 with the electrodes 105 and 106 facing sideways. First and second terminal members 107 and 112 are inserted into case body 102 so as to sandwich positive characteristic thermistor element 104. The first and second terminal members 107 and 112 are each made of a metal plate having appropriate elasticity. The first terminal member 107 forms two spring contact pieces 108 and 109, and also forms a connection portion 111 for receiving a connector pin (not shown) and achieving an electrical connection with the connector pin. The plate material forming the spring contact pieces 108 and 109 and the plate material forming the connecting portion 111 are joined by, for example, spot welding. The second terminal member 112 also has the same structure as the first terminal member 107, and forms two spring contact pieces 113 and 114 and a connection portion 116.

  In the case main body 102, the spring contact pieces 108 and 109 of the first terminal member 107 exert a pressing force based on elasticity toward the first electrode 105, while the spring contact pieces 113 of the second terminal member 112. And 114 exert a pressing force based on elasticity toward the second electrode 106. As a result, the first and second terminal members 107 and 112 support the positive temperature coefficient thermistor element 104 while elastically sandwiching the positive temperature coefficient thermistor element 104.

  As described above, after the positive temperature coefficient thermistor element 104 and the terminal members 107 and 112 are housed in the case body 102, the lid 103 is mounted so as to close the lower opening of the case body 102. The lid 103 is provided with holes for allowing the connector pins to be inserted into the connecting portions 111 and 116 described above.

  In the positive temperature coefficient thermistor device 100 as described above, as the use is repeated, the positive temperature coefficient thermistor element 104 deteriorates and abnormal heat generation occurs in the positive temperature coefficient thermistor element 104. Therefore, the electrodes 105 and 106 of the positive temperature coefficient thermistor element 104 or Spark may occur at the edge portion, and the positive temperature coefficient thermistor element 104 may be destroyed. When the positive temperature coefficient thermistor element 104 is broken, fragments of the positive temperature coefficient thermistor element 104 scatter in the case made up of the case body 102 and the lid 103.

  However, such failure modes can result in a more serious failure mode. That is, in the positive temperature coefficient thermistor device 100 shown in FIG. 7, when the positive temperature coefficient thermistor element 104 is cracked as a result of the occurrence of spark, it is elastically held between the spring contact pieces 108, 109, 113 and 114. The part which is done escapes scattering. Therefore, energization is continued through the remaining portion, the remaining portion of the positive temperature coefficient thermistor element 104 and the terminal members 107 and 112 are melted, and a conductive alloy is generated. As a result, there is a concern that the terminal members 107 and 112 are in an electrical short-circuit state, and abnormal heat generation further continues, and a transition to a failure mode in which the case is softened or the like is caused.

  The above-mentioned problems are not limited to the positive temperature coefficient thermistor device, and electronic component elements corresponding to the positive temperature coefficient thermistor element are supported and supplied with power in the same manner as in the case of the positive temperature coefficient thermistor device, and are destroyed due to deterioration. If it reaches, it may occur in other electronic parts as well.

  Therefore, for example, Japanese Patent No. 2882322 (Patent Document 1) describes a technique that is interesting with regard to solving the above-described problems. In Patent Document 1, the electronic component element deteriorates. Therefore, in an electronic component in which the electronic component element may break down, first and second currents can be automatically shut off after the destruction. And an electronic component element formed so that the electrodes of each other are opposed to each other, and the electronic component element is supported by elastically sandwiching the electronic component element, and different positions on the first electrode And the first and second contact portions that respectively contact the first and second contact portions, and the first and second contact portions that are positioned so as to face each other through the electronic component element, and at different positions on the second electrode. Supporting means (terminal members) having third and fourth contact portions that are in contact with each other, and the first and fourth contact portions are electrically connected to the first and second electrodes, respectively, and are electronic components. Element Disclosed is an electronic component configured to constitute a conductive path for electricity, while the second and third contact portions are in electrical insulation with the first and second electrodes, respectively. Has been.

  One structural example of such an electronic component 200 is shown in FIGS. Here, FIG. 8 is a plan view of the positive temperature coefficient thermistor device 200 as viewed from the bottom surface direction of the case main body 202, where the lid 203 is shown in a removed state. FIG. 9 is a view of the positive temperature coefficient thermistor device 200 as viewed from the side, and shows the arrangement of each member inside by dotted lines.

  In the electronic component 200, all of the first to fourth contact portions 219 to 222 act so as to elastically sandwich the electronic component element, but the first and the second contribute to the power feeding. 4 and only the contact portions 219 and 222, and the second and third contact portions 220 and 221 are in electrical insulation with the electrodes via the first and second electrical insulation members 217 and 218, respectively. I'm just there. Therefore, when the electronic component element is destroyed due to deterioration of the electronic component element, the first and second contact portions 219 and 220 provided on the terminal member 207 and the third provided on the terminal member 212 are disposed. In addition, the respective portions that are elastically sandwiched by the fourth contact portions 221 and 222 are maintained in the state of being sandwiched as they are without being scattered, but these portions are in an energized state with the electrodes. By a certain first contact portion 219 and the third contact portion 221 not energized, or by the electrode and the second contact portion 220 not energized and the fourth contact portion 222 energized, respectively. In this case, no current is generated through these remaining portions, and the circuit is opened.

  However, the destruction mode of the electronic component element due to the deterioration of the electronic component element is not limited to the cracking mode in which the electronic component element after destruction becomes a large fragment that is elastically sandwiched between the opposing spring contact pieces as described above. In addition, there may be a pulverization mode in which the broken electronic component elements fall off from the spring contact pieces and become pieces that are almost shattered.

In such a case, pieces of the electronic component element may accumulate on the bottom surface in the case, and in rare cases, the terminal members 207 and 212 may be conducted through the pieces of the electronic component element. As a result, even in the electronic component disclosed in Patent Document 1, the terminal members 207 and 212 are electrically short-circuited, and abnormal heat generation further continues, resulting in a failure mode that causes softening of the case. There is a concern that this will continue.
Japanese Patent No. 2882322

  An object of the present invention is that, as described above, in an electronic component in which the electronic component element may deteriorate and break down during energization, the destruction mode of the electronic component element is a pulverization mode, and the electronic component element after destruction is shattered. Even if it becomes a fragment close to, it is intended to automatically cut off the energization after destruction.

  In order to solve the above-described technical problem, an electronic component according to the present invention includes an electronic component element formed so that the first and second electrodes face each other and elastically sandwiching the electronic component element. An electroconductive first terminal for supporting an electronic component element, the electroconductive first terminal having a first spring contact piece and a first support portion that exerts a pressing force based on elasticity toward the first electrode A member, a first electrically insulating member that contacts the first electrode at a position different from the first terminal member, and a second spring contact that exerts a pressing force based on elasticity toward the second electrode A conductive second terminal member having a piece and a second support post, and a second electrical insulating member that contacts the second electrode at a position different from the second terminal member, The first and second terminal members are the first and second electrodes, respectively. A conductive path is formed for electrical connection to supply power to the electronic component element. The first terminal member, the second electrical insulating member, the first insulating member, and the second An electronic component comprising: support means arranged so that terminal members face each other; and a case for housing the electronic component element and the first and second terminal members, The first and second support columns are respectively installed in first and second storage portions made of an electrically insulating member, and the edge portions of the first and second spring contact pieces facing the bottom surface of the case are arranged. Of these, the volume of the space in the case formed between the virtual cross section of the case and the bottom surface of the case, which is assumed to include a longer distance from the bottom surface of the case, is the electronic component element. Greater than volume Is characterized that no.

  In the electronic component of the present invention, the first terminal member further includes a third spring contact piece that exerts a pressing force based on elasticity toward the first electrode, and the first electrical insulating member includes: The fourth spring contact piece is inserted between the third spring contact piece and the first electrode, and the second terminal member has a fourth spring contact piece that exerts a pressing force based on elasticity toward the second electrode. Further, it is preferable that the second electrical insulating member is configured to be inserted between the fourth spring contact piece and the second electrode.

  In the electronic component of the present invention, it is preferable that the first and second storage portions are formed by an electrically insulating member that is covered around the first and second support columns.

  In the electronic component of the present invention, the electronic component element is preferably a positive thermistor element.

  In the electronic component according to the present invention, the first and second support columns are respectively installed in the first and second storage portions made of an electrically insulating member, and the case of the first and second spring contact pieces The volume of the space formed in the case between the virtual cross section of the case and the bottom surface of the case that is assumed to include the longer distance from the bottom surface of the case among the edges on the side facing the bottom surface is the electronic component. Since it is formed so as to be larger than the volume of the element, the destruction mode of the electronic component element due to the deterioration of the electronic component element is large enough that the electronic component element after destruction is elastically held by the opposing spring contact piece In addition to the cracking mode, which is a broken piece, there is a crushing mode that produces broken pieces that cause the broken electronic component element to fall off the spring contact piece. Even when deposited to cause as within, it can be sufficiently accommodated in the electronic component within the space surrounded debris with an electrically insulating member element. Therefore, there is no electrical connection between the terminal members via the pieces of the electronic component element, and it is reliably suppressed that the abnormal heat generation further continues and shifts to the failure mode in which the case is softened. Therefore, a highly reliable electronic component can be obtained.

  The first terminal member further includes a third spring contact piece that exerts a pressing force based on elasticity toward the first electrode, and the first electrical insulating member includes the third spring contact piece and the first electrode. A fourth spring contact piece that is inserted between the second terminal member and exerts a pressing force based on elasticity toward the second electrode, and the second electrically insulating member is a fourth spring contact piece. And the second electrode, it is possible to increase the number of places that elastically support the electronic component element. Therefore, when a cracking mode and a pulverization mode occur together as a failure mode of an electronic component element due to deterioration of the electronic component element, a large piece should be sandwiched between spring contact pieces with the circuit open. By reducing the number of debris that falls into the bottom of the case as much as possible and making it as small as possible, it is possible to further suppress conduction between the terminal members via the debris of the electronic component element, and to further improve the reliability of the electronic component be able to.

  Further, when the first and second storage portions are formed by covering the periphery of the first and second support columns with an electrical insulating member, the volume of the storage portion can be reduced, so that the electric power in the case can be reduced. It is possible to obtain a wider space for accommodating pieces of electronic component elements than to form a partitioned space using an insulating member.

  Further, by using a positive temperature coefficient thermistor element as the electronic component element, it is possible to prevent overheating of the electronic device with a simple mechanism using only inexpensive electronic components.

  Below, the electronic component which concerns on this invention is demonstrated in detail based on FIG. 1 and 2. FIG.

  1 and 2 show a positive temperature coefficient thermistor device 1 according to an embodiment of the present invention. FIG. 1 is a plan view of the positive temperature coefficient thermistor device 1 as viewed from the bottom surface of the case body with the lid 3 removed. . FIG. 2 is a view of the positive temperature coefficient thermistor device 1 as viewed from the side, and shows the arrangement of the internal members by dotted lines.

  In FIG. 1, the positive temperature coefficient thermistor device 1 is similar to the positive temperature coefficient thermistor device 200 described above, the case body 2, the positive temperature coefficient thermistor element 4 housed in the case body 2, and the first and second terminal members 7. 12, a lid 3 that closes a lower opening of the case body 2, and first and second electrical insulating members 17 and 18.

  The case body 2 is made of a resin having excellent heat resistance, such as phenol, polyphenylene sulfite, polybutylene terephthalate, and the like having a flame resistance of 94V-0 (UL standard). The case body 2 may be made of an inorganic material such as alumina. The case body 2 has a shape in which a part of the upper surface protrudes so that the positive temperature coefficient thermistor element 4 can be accommodated. Further, the case body 2 may have a shape capable of positioning the terminal members 7 and 12 and the electrical insulating members 17 and 18.

  The positive temperature coefficient thermistor element 4 has a disk shape as a whole, and the first and second electrodes 5 and 6 are formed to face each other. As the positive temperature coefficient thermistor element 4, for example, another shape such as a square plate shape may be used. The positive temperature coefficient thermistor element 4 is inserted into the central portion of the case body 2 with the electrodes 5 and 6 facing sideways.

  First and second terminal members 7 and 12 are inserted into case body 2 so as to sandwich positive characteristic thermistor element 4. The first and second terminal members 7 and 12 are each composed of a plate material made of a metal such as stainless steel or a copper alloy. In this way, the first and second terminal members 7 and 12 are given appropriate elasticity and conductivity.

  The first terminal member 7 forms two spring contact pieces 8 and 9, and accepts a connector pin (not shown) by the first strut portion 10, and a connection for achieving an electrical connection with the connector pin Part 11 is formed. The plate material forming the spring contact pieces 8 and 9 and the plate material forming the first support column 10 and the connection portion 11 are joined by spot welding, for example. The 1st support | pillar part 10 is installed in the 1st accommodating part 23 which consists of an electrically insulating member. By installing the first support column 10 in this manner, the first support column 10 can be electrically insulated from the space in which the positive temperature coefficient thermistor element 4 is supported in the case.

  In addition, the spring contact pieces 8 and 9 can be changed into arbitrary shapes other than what was illustrated. Further, by changing the shape of the spring contact pieces 8 and 9, the spring contact pieces 8 and 9 can be integrally formed from the plate material forming the support column portion 10 and the connection portion 11.

  The second terminal member 12 also has the same structure as the first terminal member 7, and forms two spring contact pieces 13 and 14, a second support column portion 15, and a connection portion 16. The 2nd support | pillar part 15 is installed in the 2nd accommodating part 24 which consists of an electrically insulating member. That is, the second support column 15 is also electrically insulated from the space in which the positive temperature coefficient thermistor element 4 is supported in the case, like the first support column.

  In the case body 2, the spring contact pieces 8 and 9 of the first terminal member 7 exert a pressing force based on elasticity toward the first electrode 5, while the spring contact pieces 13 of the second terminal member 12. And 14 exert a pressing force based on elasticity toward the second electrode 6. Thus, the first and second terminal members 7 and 12 support the positive temperature coefficient thermistor element 4 while elastically sandwiching the positive temperature coefficient thermistor element 4 so that the positive temperature coefficient thermistor element 4 floats in the air in the case body 2. Maintained.

  The first and second electric insulating members 17 and 18 are, for example, thin plate-like members made of an inorganic material such as mica and glass, and each of the first and second spring contact pieces 9 and 1 of the first terminal member 7. It is inserted between the electrode 5 and between one spring contact piece 13 of the second terminal member 12 and the second electrode 6. The first and second electrical insulating members 17 and 18 described above are formed so as to cover each part of the first and second electrodes 5 and 6 instead of a plate-like member that can be handled independently. It may be constituted by a film, or may be constituted by an electrically insulating film or chip made of an inorganic material or a resin provided so as to cover each of the spring contact pieces 9 and 13.

  In this positive temperature coefficient thermistor device 1, as shown in FIG. 2, the spring contact pieces 8 and 9 of the first terminal member and the spring contact pieces 13 and 14 of the second terminal member are relative to the bottom surface of the case, that is, the lid 3. It is installed so that the edge part to perform becomes the same height from the bottom face of a case. An imaginary cross section of the case assumed to include such an edge is denoted by S. The space formed between the virtual cross section S and the bottom surface of the case is set to be larger than the volume of the positive temperature coefficient thermistor element 4.

  In this embodiment, the edge of each spring contact piece that is opposite to the bottom of the case is installed at the same height from the bottom of the case, but the height of the edge of each spring contact piece is from the bottom of the case. It does not have to be the same height. In that case, it is assumed that the virtual cross section S includes a longer distance from the bottom surface of the case.

  As described above, after the positive temperature coefficient thermistor element 4, the terminal members 7 and 12, and the electrical insulating members 17 and 18 are housed in the case body 2, the lid 3 is mounted so as to close the lower opening of the case body 2. . For this attachment, for example, a fitting structure between the case body 2 and the lid 3 is used. The lid 3 is made of the same material as that of the case body 2 described above. The lid 3 is provided with holes for allowing the connector pins to be inserted into the connecting portions 11 and 16 described above.

  In the positive temperature coefficient thermistor device 1 obtained as described above, the support means for supporting the positive temperature coefficient thermistor element 4 by elastically sandwiching the positive temperature coefficient thermistor element 4 includes the terminal members 7 and 12 and the electrical insulating member 17. And 18. Then, the first and second contact portions 19 and 20 which are provided in this supporting means and which are in contact with different positions on the first electrode 5 are provided by the spring contact piece 8 and the first electric insulation member 17, respectively. On the other hand, the third and second contact portions 19 and 20 are positioned so as to face the first and second contact portions 19 and 20 via the positive temperature coefficient thermistor element 4 and are in contact with different positions on the second electrode 6. The four contact portions 21 and 22 are provided by the second electrically insulating member 18 and the spring contact piece 14, respectively. The spring contact pieces 8 and 14 constituting the first and fourth contact portions 19 and 22 are electrically connected to the first and second electrodes 5 and 6, respectively, and supply power to the positive temperature coefficient thermistor element 4. For this purpose, a conductive path is formed. On the other hand, the first and second electrically insulating members 17 and 18 constituting the second and third contact portions are in contact with the first and second electrodes 5 and 6 in an electrically insulated state, respectively.

  In such a positive temperature coefficient thermistor device 1, when the positive temperature coefficient thermistor element 4 is broken due to a cracking mode, which is a large piece, as a result of occurrence of a spark or the like, elasticity from the spring contact pieces 8, 9, 13, and 14 is generated. Therefore, a portion elastically sandwiched between the spring contact piece 8 and the electrical insulating member 18 and a portion elastically sandwiched between the spring contact piece 14 and the electrical insulating member 17 are applied. Each escapes from scattering and maintains such a sandwiched state.

  In this state, the spring contact pieces 8 and 14 that are in contact with the electrodes 5 and 6 without the electrical insulating member 17 or 18 are not positioned so as to face each other, but also the spring contact pieces. An electric insulating member 17 is provided in a path from 8 through the remaining portion to the spring contact piece 13 opposed thereto and a path from the spring contact piece 14 through the remaining portion to the spring contact piece 9 opposed thereto. Since 18 and 18 are present, energization is no longer interrupted and the circuit is open.

  Therefore, an alloying phenomenon occurs between the remaining portion of the positive temperature coefficient thermistor element 4 and the terminal members 7 and 12 due to the continuation of energization as described above, an electrical short-circuit state occurs, and abnormal heat generation still continues. Transition to a dangerous failure mode can be reliably prevented.

  Further, in such a positive temperature coefficient thermistor device 1, as a result of the occurrence of a spark or the like, a pulverization mode in which the positive temperature coefficient thermistor element 4 after breaking breaks off from the spring contact piece and becomes a fragment close to a shatter occurs. Even if the fragments of the positive temperature coefficient thermistor 4 are accumulated in the case, the first and second support portions 10 and 15 are made of an electrically insulating member. 24, the fragments of the positive temperature coefficient thermistor 4 do not come into contact with the first and second support columns 10 and 15.

  Furthermore, since the space formed between the virtual cross section S and the bottom surface of the case is set to be larger than the volume of the positive temperature coefficient thermistor element 4, the pieces of the electronic component element are surrounded by the electrical insulating member. It can be fully accommodated in the space. Therefore, a failure mode in which the fragments of the positive temperature coefficient thermistor element 4 are not in contact with the spring contact piece and the terminal members are not connected through the spring contact piece, and the abnormal heat generation further continues to cause softening of the case. Therefore, the positive temperature coefficient thermistor device 1 with high reliability can be obtained.

  Here, when the height of the edge portion of each spring contact piece is not the same height from the bottom surface of the case, the positive characteristics are obtained by assuming that the virtual cross section S includes a longer distance from the bottom surface of the case. Even if fragments of the thermistor 4 accumulate in the case, they do not reach at least the spring contact piece having a longer distance from the bottom surface of the case, so that the terminal members are electrically connected via the pieces of the electronic component element. There is no such thing.

  3 to 5 show a positive temperature coefficient thermistor device 1a according to another embodiment of the present invention. FIG. 3 is a cross-sectional view of a positive temperature coefficient thermistor device according to another embodiment of the present invention as viewed from the front, and FIG. FIG. 5 is a plan view of a positive temperature coefficient thermistor device according to another embodiment of the present invention as viewed from the bottom surface of the case body with the lid removed.

  3 to 5, elements corresponding to those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and redundant description is omitted. 3 and 4 are shown with the first and second storage portions 23 and 24 in FIG. 5 removed.

  In this embodiment, there are only two spring contact pieces, the first spring contact piece 8 and the second spring contact piece 14, and the electrical insulating members 17 and 18 are elastic by the spring contact pieces unlike the previous embodiment. Pressure is not exerted. That is, the positive temperature coefficient thermistor element 4 receives the pressing force by the first spring contact piece 8 by the second electric insulating member 18 and receives the pressing force by the second spring contact piece 14 by the first electric insulating member 17. Thus, the case body 2 is maintained in a floating state.

  Further, a third support column 25 is provided, and the connecting portions 11 ′ and 16 ′ have a pin terminal shape instead of a socket shape using the shape of the support column as in the previous embodiment.

  Also in this embodiment, the space formed between the virtual cross section Sa and the bottom surface of the case is set to be larger than the volume of the positive temperature coefficient thermistor element 4 as in the previous embodiment. The element fragments can be sufficiently accommodated in the space surrounded by the electrical insulating member. Therefore, a failure mode in which the fragments of the positive temperature coefficient thermistor element 4 are not in contact with the spring contact piece and the terminal members are not connected through the spring contact piece, and the abnormal heat generation further continues to cause softening of the case. Therefore, the positive temperature coefficient thermistor device 1a with high reliability can be obtained.

  FIG. 6 is a cross-sectional view showing a case where the first storage portion 23 is formed by covering the periphery of the first support column portion 10 with an electrical insulating member. Since the volume of the storage portion can be reduced by covering the support portion directly with the electrical insulating member and forming the storage portion, the space partitioned by the electrical insulating member in the case can be reduced. It is possible to obtain a wider space for accommodating the pieces of the electronic component element than the formation.

  Although the invention has been described with reference to the illustrated embodiment, other embodiments are possible within the scope of the invention.

  For example, the embodiment described above is an embodiment when the present invention is applied to a positive temperature coefficient thermistor device. However, the present invention is not limited to the positive temperature coefficient thermistor device, and an electronic component element corresponding to a positive temperature coefficient thermistor device. However, as long as it is supported and supplied with power in the same manner as in the case of the above-described positive temperature coefficient thermistor device and is damaged due to deterioration, it can be similarly applied to other electronic components.

It is the top view which looked at the positive temperature coefficient thermistor device by one Embodiment of this invention from the lower surface direction of the case main body in the state which removed the cover. It is the figure which looked at the positive characteristic thermistor device by one Embodiment of this invention from the side surface direction. It is sectional drawing which looked at the positive temperature coefficient thermistor apparatus by other embodiment of this invention from the front direction. It is sectional drawing which looked at the positive temperature coefficient thermistor apparatus by other embodiment of this invention from the side surface direction. It is the top view which looked at the positive temperature coefficient thermistor apparatus by other Embodiment of this invention from the lower surface direction of the case main body in the state which removed the cover. It is sectional drawing when the circumference | surroundings of a support | pillar part are coat | covered with an electrical insulation member, and a storage part is formed. It is the top view which looked at the positive temperature coefficient thermistor apparatus in a prior art example from the lower surface direction of the case main body in the state which removed the cover. It is the top view which looked at the positive temperature coefficient thermistor apparatus in another prior art example from the lower surface direction of the case main body in the state which removed the cover. It is the figure which looked at the positive temperature coefficient thermistor device in another conventional example from the side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Positive characteristic thermistor apparatus 2 Case main body 3 Lid 4 Positive characteristic thermistor element 5 1st electrode 6 2nd electrode 7 1st terminal member 8, 9, 13, 14 Spring contact piece 10 1st support | pillar part 11 , 16 Connecting portion 12 Second terminal member 15 Second support portion 17 First electric insulating member 18 Second electric insulating member 19 First contact portion 20 Second contact portion 21 Third contact portion 22 Second 4 contact parts 23 1st accommodating part 24 2nd accommodating part 25 3rd support | pillar part S, Sa Virtual cross section of a case

Claims (4)

An electronic component element formed such that the first and second electrodes face each other;
A first spring contact piece for supporting the electronic component element by elastically sandwiching the electronic component element, wherein the first spring contact piece and the first spring exert a pressing force based on elasticity toward the first electrode. A conductive first terminal member having a support portion, a first electrical insulating member that contacts the first electrode at a position different from the first terminal member, and toward the second electrode A conductive second terminal member having a second spring contact piece that exerts a pressing force based on elasticity and a second support column, and contacts the second electrode at a position different from the second terminal member. A second electrical insulating member, and the first and second terminal members are electrically connected to the first and second electrodes, respectively, to form a conductive path for supplying power to the electronic component element The first terminal member and the second electrical insulation member Wherein a fine first of said insulating member second terminal member, support means are arranged so that the respective opposed,
A case for housing the electronic component element and the first and second terminal members, and an electronic component comprising:
The first and second support columns are respectively installed in first and second storage units made of an electrically insulating member,
The virtual cross section of the case and the bottom surface of the case that are assumed to include a longer distance from the bottom surface of the case among the edge portions of the first and second spring contact pieces facing the bottom surface of the case. The volume of the space in the said case formed between is larger than the volume of the said electronic component element, The electronic component characterized by the above-mentioned.   The first terminal member further includes a third spring contact piece that exerts a pressing force based on elasticity toward the first electrode, and the first electrical insulating member includes the third spring contact piece and the third spring contact piece. The second terminal member is inserted between the first electrode, and the second terminal member further includes a fourth spring contact piece that exerts a pressing force based on elasticity toward the second electrode, and the second electrical insulation. The electronic component according to claim 1, wherein the member is inserted between the fourth spring contact piece and the second electrode.   3. The electron according to claim 1, wherein the first and second storage portions are formed of an electrically insulating member coated around the first and second support columns. parts.   4. The electronic component according to claim 1, wherein the electronic component element is a positive temperature coefficient thermistor element.

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