EP3449490A1 - Composant électronique destiné à la limitation d'un courant de mise sous tension et utilisation d'un composant électronique - Google Patents
Composant électronique destiné à la limitation d'un courant de mise sous tension et utilisation d'un composant électroniqueInfo
- Publication number
- EP3449490A1 EP3449490A1 EP17721065.5A EP17721065A EP3449490A1 EP 3449490 A1 EP3449490 A1 EP 3449490A1 EP 17721065 A EP17721065 A EP 17721065A EP 3449490 A1 EP3449490 A1 EP 3449490A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ntc
- electronic component
- elements
- contact
- ntc element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/1413—Terminals or electrodes formed on resistive elements having negative temperature coefficient
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
- H01C17/281—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals by thick film techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/001—Mass resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
- H01C7/041—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient formed as one or more layers or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
- H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
- H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
- H01C7/043—Oxides or oxidic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/06—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material including means to minimise changes in resistance with changes in temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/18—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material comprising a plurality of layers stacked between terminals
Definitions
- the invention relates to an electronic component for inrush current limiting.
- the invention further relates to the use of an electronic component.
- ABS Applications
- a thermally controlled inrush current limiter (ICL) can be used for this purpose.
- Temperature Coefficient can be used.
- Coefficient of expansion of the ICL ceramic is significantly smaller than the coefficient of expansion of good electrical conductors (e.g., copper). The resulting thermal
- An object to be solved is to provide an improved electronic component for inrush current limiting and the use of an improved electronic component.
- an electronic component in short component, is specified.
- the electronic component is designed to be used in an inrush current limiter or to act as inrush current limiter.
- Component has at least one NTC element.
- the NTC element serves as a functional element or functional layer of the component.
- the NTC element has an NTC ceramic.
- the device may comprise a plurality of NTC elements,
- the NTC element can be disc or
- the NTC element may also have a rectangular or annular surface.
- a metallization is arranged on the NTC element.
- the metallization preferably has silver.
- the metallization may also include copper or gold.
- the NTC element may be a monolithic device.
- the NTC ceramic is produced in press technology and then brought by lapping (fine sanding from both sides) in the desired shape or to the desired thickness (thick-film monolith).
- the NTC element may also be designed as a multilayer monolith. In this case, ceramic foils are stacked and pressed to provide the NTC element.
- the component has at least two electrically conductive contact elements or electrodes.
- the contact elements are flat.
- the contact elements are formed and arranged for electrically conductive and thermal
- the device may have a plurality of contact elements, for example, five, ten or 15 contact elements, wherein the individual NTC elements must be coupled thermally well.
- the NTC element is electrically connected via a bonding material with the respective Ko tactile element.
- the NTC element is also thermally connected to the respective contact element via the connecting material.
- Contact element is adapted to the thermal expansion ⁇ coefficient of the NTC element.
- the thermal expansion coefficients of NTC element and the contact elements are approximately equal.
- the NTC element has a thermal
- the respective contact element has a corresponding coefficient of expansion.
- the thermal expansion coefficient of the respective contact element is preferably in the range between 5 ppm / K and 10 ppm / K.
- the NTC element has an upper side and a lower side. Top and bottom are opposite each other and are each of the
- the top and bottom are each at least partially through the
- Edge layer or a small edge region of the top or the bottom remain uncontacted.
- the upper side and the lower side can also be electrically conductively contacted over the whole area by the respective contact element.
- the NTC element is arranged embedded between the two contact elements, so that the top and bottom in each case partially or
- the contact element has a composite material.
- Contact element is composed of several materials.
- the respective contact element preferably has copper. Copper is characterized by its very high electrical
- the contact element preferably Invar and / or Kovar and / or molybdenum.
- respective contact element a rolled copper Invar sheet with layer structure of copper - Invar - copper on.
- Expansion coefficients of the NTC element can be adjusted. This achieves a very stable and durable component.
- the contact element has a layer structure of copper-Invar-copper with a
- the contact element has at least three layers.
- a first layer preferably comprises copper.
- the first layer has a thickness or vertical extent that is between 1/10 and 3/10 of the total thickness of the contact element.
- a second layer preferably comprises kovar and / or invar and / or molybdenum.
- the second layer has a thickness that is between 5/10 and 8/10 of the total thickness of the contact element is.
- the third layer has a thickness which is between 1/10 and 3/10 of the total thickness of the contact element.
- the position of the contact element comprising Invar / Kovar / Molybdenum is thicker than the position of the contact element comprising copper.
- the expansion coefficient of the contact element can be reduced or adapted to the Ausutzungskoeffi ⁇ cients of the NTC element.
- the thickness ratio copper-invar-copper is preferably 20% -60% -20%. Of course, other thickness ratios and other layer sequences and numbers of layers and the addition of Kovar or molybdenum
- the connecting material on sintered silver has a high electrical and thermal conductivity. Furthermore, sintered silver can withstand high temperatures of up to 400 ° C, for example 300 ° C, as well as rapid and many temperature changes.
- the hot state means a state at a temperature higher than that of the NTC element in a ground state.
- the temperature range between the ground state and the hot state may be any
- Temperature range between -55 ° C and + 300 ° C span or extend over this range.
- the Temperature range between the ground state and the hot state over the range of -40 ° C to + 300 ° C extend.
- the bonding material has yAg.
- yAg is characterized in particular by its sufficient porosity.
- the NTC element has two, three, five, ten or more segments.
- the segments of the NTC element preferably represent rectangular portions of the NTC element, which are spaced apart.
- the distance between the segments is 0.05 mm to 0.2 mm, for example 0.1 mm.
- joints expansion joints
- the NTC element has a temperature of 25 ° C (room temperature)
- Nominal resistance R2 5 ⁇ 1 ⁇ Room temperature is understood here as the temperature that usually prevails in inhabited rooms.
- Resistor preferably describes the electrical
- the NTC element indicates at the
- the NTC element thus has a very small electrical
- Component preferably reduced by about 1 volt.
- the resistivity of the NTC element in a ground state of the electronic device is between 0.1 ⁇ cm and 1.0 ⁇ cm, for example 0.3 ⁇ cm.
- the contact element has a thickness d.
- a thickness d Preferably, 0.3 mm ⁇ d -S 0.8 mm.
- the thickness d of the respective contact element is preferably less than 0.7 mm, for example 0.6 mm.
- the device has a plurality of NTC elements and contact elements.
- the multiple NTC elements can be separated by one
- the NTC elements are provided.
- the current carrying capacity and / or current carrying capacity of the device can be increased by a parallel connection of several NTC elements.
- the NTC elements are stacked one above the other. Between two adjacent NTC elements, a contact element is arranged in each case.
- the NTC elements are thermally good over the contact elements
- the NTC element has the composition La (i- X ) EA (x) Mn (labc) Fe ( a ) CO ( b ) Ni (c) O (3 ⁇ 6).
- EA denotes an alkaline earth element.
- the alkaline earth element is magnesium, calcium, strontium or barium
- ⁇ denotes the deviation from the stoichiometric oxygen ratio (oxygen excess or
- the resistance can be further varied and
- the NTC element has a thickness d.
- the thickness d of the NTC element is less than 500 ym, for example 400 ym.
- the B value B25 / 100 is in the range between 1000 K and 4000 K, preferably between 1400 K and 2000 K, for example at 1500 K.
- the component has a fastening element.
- the fastener is preferably designed and arranged to produce an electrically conductive connection with battery cables.
- the fastener is further preferably
- the fastening element is further preferably designed and arranged an - indirect - mechanical connection between the
- the fastening element can be designed to have a
- the fastener may, for example, but also be designed to a
- the fastening element may further comprise a sealing element.
- the sealing element may be insulating or partially insulating.
- the fastening element may comprise at least one nut and a screw and / or at least one clamping element,
- the fastening element has an electrical resistance.
- the electrical resistance is the same or only
- the electrical resistance of the fastener is the same or only
- the resistance of the fastener is not
- a fixed resistor or another conductive element with a defined electrical resistance can also be used as the fastening element.
- the temperature-dependent resistor limits the inrush current when switching on.
- the NTC element When turned on, the NTC element immediately heats up by the inrush current (for example, to 250 ° C), which quickly reduces the NTC resistance to a very small residual resistance (e.g., 0.5 mQ). This dynamic resistance change decreases due to the specific
- Connecting material is also realized a very low-resistance electrical connection of NTC element to the contact elements for repeated switching cycles, in which the ambient temperature of -40 ° C to 120 ° C may vary. During the switching cycle, the temperature can reach up to 300 ° C climb.
- a stable, highly electrically conductive device with mechanically durable, temperature-resistant and extremely resilient connection between NTC element and contact elements for use for start / stop systems in the automotive sector is given.
- FIG. 1 shows a schematic sectional view of a
- Figure 2 shows a perspective view of a possible
- Figure 3 shows a perspective view of a
- FIG. 4 shows a schematic sectional view of an electronic component according to a further exemplary embodiment
- FIG. 5 shows a perspective view of a possible one
- FIG. 6 shows a schematic sectional view of a
- FIG. 7 shows a perspective view of a
- FIG. 8 shows a schematic sectional view of a
- FIG. 9 shows a plan view of a partial region of the electronic component according to FIG. 8,
- FIG. 10 shows a schematic sectional view of a
- FIG. 11 shows a plan view of a partial region of the electronic component according to FIG. 10,
- FIG. 12 shows a schematic sectional view of a
- FIG. 13 shows a plan view of a partial region of the electronic component according to FIG. 12.
- FIG. 1 shows an electronic component 1, in short component 1.
- the component 1 is designed as inrush current limiter or in an inrush current limiter for start / stop systems in 12 V. and 24 V networks in the
- the component 1 is particularly suitable for use with currents up to 1000 A (with DC voltage in 12 V and 24 V networks).
- Component 1 suitable for use in typical 12 V starter motors with approx. 1 kW to 3 kW power.
- the component 1 has an NTC element 2 or an NTC
- the NTC element 2 represents a functional layer or a functional element of the component 1.
- the NTC element 2 is a heat-conducting component with a
- the NTC element 2 has a material composition which is characterized by a high electrical conductivity or a low resistivity.
- the NTC element 2 preferably has the following
- EA stands for an alkaline earth element, for example Mg, Ca, Sr or Ba.
- ⁇ denotes the deviation from the stoichiometric oxygen ratio (oxygen excess or oxygen deficit).
- the NTC ceramic has the composition La 0 , 95Sr 0 , 05MnO 3 .
- the specific electrical resistance of the NTC element 2 in a ground state of the NTC element 2 is less than or equal to 2 Qcm, preferably -S 1 Qcm, for example 0.5 Qcm.
- the ground state describes a temperature of the NTC element 2 of 25 ° C or at room temperature.
- the ground state can be an unloaded state in which, for example, no electrical power is applied to the NTC element 2.
- the NTC element 2 has at the specified temperature has an electrical resistance (nominal resistor R25) of less than or equal to 1 ⁇ , preferably less than 0.1 ⁇ , Example ⁇ example 0.05 ⁇ .
- the NTC element 2 thus has a low electrical resistance at room temperature or at 25 ° C and thus a high electrical conductivity.
- the NTC element 2 is particularly good for use in one
- the NTC element 2 also has a high B value.
- the B value B25 / 100 is in the range between 1000 K and 4000 K, preferably between 1400 K and 2000 K, for example at 1500 K.
- the NTC element 2 has a low thermal
- the thermal expansion coefficient of the NTC element 2 is between 7 ppm / K and 10 ppm / K.
- the NTC element 2 is preferably monolithic
- the NTC element 2 is a thick-film monolith.
- the NTC element 2 is produced in press technology and then brought to the desired thickness by lapping (fine sanding from both sides).
- the NTC element 2 but also be designed as a multilayer monolith.
- ceramic foils are stacked and pressed to provide the NTC element 2.
- the illustrated in Figure 2 NTC element 2 has a round shape.
- the NTC element 2 is disc-shaped or platelet-shaped. But other shapes are conceivable for the NTC element 2, for example, a rectangular shape or a ring shape.
- the NTC element 2 may be formed in the form of a substrate.
- the NTC element 2 has an area between 25 mm 2 and 500 mm 2 , for example 200 mm 2 .
- the diameter of the NTC element 2 is ⁇ example less than or equal 14 mm, for example, 13.75 mm.
- the NTC element 2 has a thickness d between 100 ym and 600 ym, for example 400 ym. By varying the thickness d and / or cross-section or area of the NTC element 2, the resistance of the NTC element 2 can be varied and controlled.
- the NTC element 2 has a metallization (not explicitly shown).
- the metallization is preferably arranged on an upper side and on an underside of the NTC element 2.
- the metallization is preferably arranged on an upper side and on an underside of the NTC element 2.
- the component 1 further comprises two contacts 3 and
- Contact elements 3 on (plus contact and minus contact element 12b, 12a, see Figure 3).
- the contact elements 3 are used for electrical contacting of the NTC element 2. Die
- Contact elements 3 are in this embodiment over the entire surface on the top and bottom of the NTC element 2. Alternatively (not explicitly shown), a narrow edge region of top and bottom also remain free of the respective contact element 3.
- the contact elements 3 are each electrically conductively connected to the top and the bottom of the NTC element 2.
- the NTC element 2 and the contact elements 3 are sintered.
- the component 1 has a connection ⁇ material 7. Between the upper side of the NTC element 2 and the first contact element 3 and between the underside of the NTC element 2 and the second contact element 7, a layer of bonding material 7 is formed in each case.
- Layer thickness of the bonding material 7 is preferably in the range between 15 ym and 80 ym, for example at 20 ym.
- the connecting material 7 is characterized by a high electrical and thermal conductivity.
- Connecting material 7 is also preferably characterized by a large porosity.
- the bonding material 7 is further characterized by being able to withstand high temperatures up to 400 ° C, e.g. 300 ° C, as well as many and rapid temperature changes can withstand that can occur during operation or in the hot state of the device 1.
- the hot state indicates a state of
- Temperature range between the ground state and the hot state for example, span any temperature range between -55 ° C and + 300 ° C or extend over this range.
- the temperature range may preferably be
- the bonding material 7 has sintered silver Ag or yAg. Sintered silver has the advantage that it has sufficient porosity. With the help of the connection ⁇ material 7, a stable, electrically highly conductive and mechanically durable connection between the NTC element 2 and the contact elements 3 is achieved.
- the respective contact element 3 has a high thermal and electrical conductivity.
- the respective contact element 3 is further designed such that thermal stresses
- the respective contact element 3 is adapted to the differences in the material-related
- CTE thermal expansion
- the respective contact element 3 has a
- the respective contact element may be formed, for example, as a composite sheet.
- Composite material may include copper invar copper (CIC). Instead of invar, kovar or molybdenum can also be used as material. Invar or Kovar or molybdenum has a low thermal expansion coefficient. Typically, the thermal expansion coefficient of this
- the contact elements 3 enclose the NTC element 2
- a first portion 3a of the respective contact element 3 is located on the upper side or lower side of the NTC element 2 and runs parallel to the upper side or lower side of the NTC element 2 or to a longitudinal axis L of the component 1.
- a length or Horizontal extension of the NTC element 2 is preferably less than or equal to the length or horizontal extent of the first portion 3a.
- a second portion 3b of the respective contact element 3 encloses an angle with the longitudinal axis L.
- Subregion 3b preferably adjoins the first subregion 3a at an angle of -S 20 °, for example 15 °, to the longitudinal axis L of the component 1.
- the angle between the second portion 3b of the first contact element 3 and the second portion 3b of the second contact element is preferably less than or equal to 40 °, for example 30 °.
- a third subregion 3c of the respective contact element 3 adjoins the second subregion 3b and runs parallel to the longitudinal axis L.
- Embodiment preferably the same length.
- the partial areas 3a, 3b, 3c respectively a length of 10 mm to 15 mm.
- the respective partial areas 3a, 3b, 3c preferably have the same thickness d.
- the partial regions 3a, 3b, 3c each have a thickness d of less than or equal to 0.8 mm and greater than or equal to 0.3 mm. Consequently, the amounts
- the partial areas 3a, 3b, 3c merge into one another.
- the subregions 3a, 3b, 3c are not executed as separate regions or components but represent only subsections of the respective contact element 3.
- Part 3c has a recess 8.
- the third portion 3c for a larger
- the recess 8 is preferably circular.
- the recess 8 has, for example, a
- the recess 8 penetrates the contact element 3 completely.
- the recess 8 serves to the device 1 by means of a fastener with
- FIG. 2 shows a possible contacting of the component 1 according to FIG. 1 with the battery leads
- the component 1 has a fastening element to
- Fastener may be used to provide a
- the fastener may also be configured and arranged to have a clamp connection
- a spacer 9 is arranged between an underside of the third portion 3c of the first and upper contact element 3 and the top of the third
- Part 3c of the second and lower contact element 3 is arranged.
- the spacer 9 is cylindrical
- the spacer 9 is formed insulating.
- Spacer 9 is used for electrical insulation between the two contact elements 3 (plus contact element 12b and minus contact element 12a, see Figure 3).
- the spacer 9 has, for example, polytetrafluoroethylene (PTFE).
- PTFE polytetrafluoroethylene
- PTFE has the advantage that it is consistently insulating up to a temperature of approx. 250 ° C.
- the spacer 9 has, for example, polytetrafluoroethylene (PTFE).
- PTFE polytetrafluoroethylene
- Spacer 9 a recess on (not explicitly
- the recess is used for
- a connector e.g. a threaded rod 11, for example a screw.
- Threaded rod 11 and nuts 10 are used for screwing the contact elements 3 and the electrically conductive and mechanical connection of the device 1 with the battery leads (not explicitly shown).
- clamping elements are provided for clamping the contact elements 3 and / or for the electrically conductive and mechanical connection of the
- Cable lugs 5 are electrically connected to the contact ⁇ elements 3. To connect the device 1 with the cable lugs 5, the threaded rod 11 through the
- the screwing on an axis avoids additional mechanical stresses on the connection between the NTC element 2 and the contact elements 3.
- the screw or attachment must either a higher resistance than that
- NTC element 2 or must be made insulating (see, for example, Figures 12 and 13).
- the gland or attachment can alternatively also directly to a
- the NTC element 2 When turned on, the NTC element 2 immediately heats up by the inrush current (e.g., to 250 ° C), causing the NTC
- Residual resistance (e.g., 0.5 mQ) is reduced. This dynamic change in resistance reduces that of the starter motor
- the component 1 can additionally be equipped with a so-called "fail-safe" function, for which purpose the screw connection shown in FIG.
- Nominal resistance R2 5 of the NTC element 2 at a temperature of 25 ° C, for example, R2 5 10 mQ.
- a screw connection can also be a fixed resistor or another conductive element with defined
- FIG. 3 shows a perspective view of a
- the component 1 according to FIG. 3 has a plurality of NTC elements 2 and a plurality of contact elements 3.
- the component 1 may have up to ten NTC elements 2.
- the NTC elements 2 are each round or disc-shaped (see comments on Figure 1).
- the NTC elements 2 are electrically connected in parallel.
- the component 1 preferably has one
- the diameter of the NTC elements 2 may be smaller than the diameter of the NTC element 2 shown in FIG. 1. That is, several smaller elements are connected. The tension reduces with the component size of the NTC element. 2
- the attachment to the, preferably the screw with the, battery terminals is preferably carried out on a common, insulating body (for example, a
- FIG. 4 shows a schematic sectional view of an electronic component according to another
- the contact elements 3 are double-sided. Again, the respective shows
- Contact element 3 three portions 3a, 3b, 3c, wherein the second portion 3b and third portion 3c are designed similar but in the opposite direction to the first portion 3a.
- the first portion 3a is located at the top or
- the length or horizontal extent of the NTC element 2 is less than or equal to the length or
- the length of the first portion 3a in this embodiment is greater than the length of the first portion 3a according to that shown in FIG.
- the length of the first portion 3a is for example 18 mm.
- element 2 is less than or equal to 14 mm, e.g. 13.75 mm.
- the second and third sub-areas 3b, 3c respectively adjoin a side area or edge area of the first sub-area 3a.
- the second partial area 3b and the third partial area 3c are respectively formed on the left and right of the first partial area 3a.
- the second portion 3b and the third portion 3c each include an angle with the longitudinal axis L.
- the second and third partial areas 3b, 3c preferably each enclose an angle of ⁇ 90 °, for example 60 °, with the longitudinal axis L.
- Both the second portion 3a and the third portion 3c extend away from the longitudinal axis L.
- a vertical distance from an end region 13 of the third subregion 3c or of the second subregion 3b to the NTC element 2 is for example less than or equal to 18 mm, for example 15 mm.
- the component 1 is designed mirror-symmetrically about the axis L.
- the respective contact element 3 is further
- FIG. 5 shows a perspective view of a
- the component 1 is introduced into a housing 6.
- the housing 6 is frame-shaped. Through the housing 6, the device 1 by means of an insulated, flexible copper cable (not explicitly shown) contacted
- Recesses 6a inserted at an upper side and a lower side of the housing 6 in the housing 6.
- the housing 6 has a mechanical strain relief 4 for the copper cable.
- the strain relief 4 may be arranged, for example, on an upper side and on an underside 4 of the housing 6. With mechanical pull on the copper cable, the strain relief 4 ensures that no or only
- FIG. 6 shows a schematic sectional view of an electronic component according to another
- the component 1 corresponds to the component 1 from FIG. 4.
- the contact elements 3 are not arranged mirror-symmetrically with respect to the longitudinal axis L. Rather, the contact elements 3 are offset from each other by 90 °. This allows different installation situations to be taken into account.
- FIG. 7 shows a perspective view
- the component 1 corresponds to the component 1 from FIG. 6.
- the component 1 according to FIG. 7 has a plurality of NTC elements 2 and a plurality of contact elements 3.
- the component 1 may have up to ten NTC elements 2, each formed round and disc-shaped and
- the contact elements 3 are electrically connected in parallel. Between the NTC elements 2, the contact elements 3 are arranged.
- component 1 has a layer sequence of alternately arranged NTC elements 2 and contact elements 3.
- FIG. 8 shows a schematic sectional view of an electronic component according to another
- FIG. 9 also shows a plan view of a partial region of the electronic component according to FIG. 8.
- an NTC element 2 is used, which has been divided or segmented by sawing or scribing into smaller NTC elements or segments 2a.
- the NTC element 2 has a plurality of segments 2a.
- the NTC element 2 preferably has a rectangular shape.
- the NTC element 2 has a width and a height of less than or equal to 13 mm, for example, 12.7 mm.
- the respective segment 2a is also
- the respective segment 2a has a length and a width of approximately 2 mm each.
- the contact elements 3 should be made rectangular for this embodiment. So will the respective
- the three subregions preferably have the same length
- Expansion joints 15 have a width of 0.05 mm to 0.2 mm, for example, 0.1 mm. By these expansion joints 15 lower thermal stresses in the NTC element. 2 set up during normal operation.
- FIG. 10 shows a schematic sectional view of an electronic component according to another
- FIG. 11 shows a plan view of a partial region of the electronic component according to FIG. 10.
- FIG. 12 shows a schematic sectional view of an electronic device according to another execution ⁇ example.
- FIG. 13 shows a perspective view of a partial region of the electronic component according to FIG. 12.
- the contact elements 3 are double-sided as described in connection with FIG.
- the NTC element 2 is arranged and electrically connected via the connecting material 7 and thermally connected to the contact elements 3.
- the NTC element 2 has a round, continuous recess. Also the first
- Part 3a of the respective contact element 3 has a recess in this embodiment.
- Recesses of contact elements 3 and NTC element 2 are designed and arranged to allow the insulating screwing of the contact elements 3.
- the recesses are provided to a threaded rod 11 for
- a spacer 9 is arranged in each case, which has a recess 9a ( Figure 13).
- the respective spacer is
- a spacer 9 is arranged on an upper side of the first portion 3a of the first and upper contact element 3. Another spacer 9 is on one
- the insulating Clement 14 may include, for example, A10 x.
- the insulating member 14 is an A10 x tube. In order for an insulating executed screwing of the device 1 is possible.
- the electrical contacting of the component 1 is again as described in connection with Figure 2 via the electrically conductive connection of the contact elements 3 with the battery leads via the cable lugs 5.
- the cable lugs are screwed over the recesses 8 of the contact elements 3 with the contact elements 3.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Details Of Resistors (AREA)
- Powder Metallurgy (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016107931.6A DE102016107931A1 (de) | 2016-04-28 | 2016-04-28 | Elektronisches Bauelement zur Einschaltstrombegrenzung und Verwendung eines elektronischen Bauelements |
PCT/EP2017/059132 WO2017186527A1 (fr) | 2016-04-28 | 2017-04-18 | Composant électronique destiné à la limitation d'un courant de mise sous tension et utilisation d'un composant électronique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3449490A1 true EP3449490A1 (fr) | 2019-03-06 |
Family
ID=58668845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17721065.5A Pending EP3449490A1 (fr) | 2016-04-28 | 2017-04-18 | Composant électronique destiné à la limitation d'un courant de mise sous tension et utilisation d'un composant électronique |
Country Status (7)
Country | Link |
---|---|
US (1) | US11289244B2 (fr) |
EP (1) | EP3449490A1 (fr) |
JP (2) | JP2019523980A (fr) |
KR (1) | KR20180136944A (fr) |
CN (2) | CN109074923A (fr) |
DE (1) | DE102016107931A1 (fr) |
WO (1) | WO2017186527A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017215233A1 (de) * | 2017-08-31 | 2019-02-28 | Seg Automotive Germany Gmbh | NTC-Bauteil zum Einbau in den Stromkreis einer elektrischen Baueinheit |
DE102018104459A1 (de) * | 2018-02-27 | 2019-08-29 | Tdk Electronics Ag | Vielschichtbauelement mit externer Kontaktierung |
CN110698189B (zh) * | 2019-11-15 | 2021-11-02 | 中国科学院新疆理化技术研究所 | 一种镧离子掺杂的深低温热敏电阻材料及制备方法 |
CN114029493B (zh) * | 2021-09-16 | 2024-01-09 | 清华大学深圳国际研究生院 | 一种与ZnO-V2O5系压敏电阻共烧的纯银内电极及其制备方法与应用 |
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-
2016
- 2016-04-28 DE DE102016107931.6A patent/DE102016107931A1/de active Pending
-
2017
- 2017-04-18 CN CN201780026076.3A patent/CN109074923A/zh active Pending
- 2017-04-18 JP JP2018554544A patent/JP2019523980A/ja active Pending
- 2017-04-18 WO PCT/EP2017/059132 patent/WO2017186527A1/fr active Application Filing
- 2017-04-18 CN CN202111490705.2A patent/CN114156027A/zh active Pending
- 2017-04-18 EP EP17721065.5A patent/EP3449490A1/fr active Pending
- 2017-04-18 KR KR1020187028851A patent/KR20180136944A/ko not_active IP Right Cessation
- 2017-04-18 US US16/090,805 patent/US11289244B2/en active Active
-
2020
- 2020-09-24 JP JP2020160004A patent/JP7186753B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US11289244B2 (en) | 2022-03-29 |
JP2019523980A (ja) | 2019-08-29 |
JP7186753B2 (ja) | 2022-12-09 |
DE102016107931A1 (de) | 2017-11-02 |
WO2017186527A1 (fr) | 2017-11-02 |
JP2021010014A (ja) | 2021-01-28 |
KR20180136944A (ko) | 2018-12-26 |
CN109074923A (zh) | 2018-12-21 |
CN114156027A (zh) | 2022-03-08 |
US20200118718A1 (en) | 2020-04-16 |
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