WO2017147666A1 - Ensemble de boîtier pour diode de suppression de tensions et procédé de fabrication et d'assemblage de celui-ci - Google Patents

Ensemble de boîtier pour diode de suppression de tensions et procédé de fabrication et d'assemblage de celui-ci Download PDF

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Publication number
WO2017147666A1
WO2017147666A1 PCT/BR2016/050044 BR2016050044W WO2017147666A1 WO 2017147666 A1 WO2017147666 A1 WO 2017147666A1 BR 2016050044 W BR2016050044 W BR 2016050044W WO 2017147666 A1 WO2017147666 A1 WO 2017147666A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
voltage suppressor
suppressor diode
diode
housing assembly
Prior art date
Application number
PCT/BR2016/050044
Other languages
English (en)
Inventor
Breno Raizer
Bruno Ataulo
Andre Galhardo
Original Assignee
Robert Bosch Motores De Partida E Alternadores Ltda.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Motores De Partida E Alternadores Ltda. filed Critical Robert Bosch Motores De Partida E Alternadores Ltda.
Priority to PCT/BR2016/050044 priority Critical patent/WO2017147666A1/fr
Publication of WO2017147666A1 publication Critical patent/WO2017147666A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/10—Safety devices not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/006—Assembling or mounting of starting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices

Definitions

  • the present invention refers to a housing assembly of voltage suppressor diode, particularly developed for application in starting engine solenoids used on automotive vehicles. More preferably, the solenoid provided with diode housing, object of the invention, comprises technical, constructive and functional features totally innovative and that are capable of having a simple solution, practical, and highly efficient related to the installation and accommodation of diodes on the solenoids without, with this, affecting the structural configuration of diodes or the structure of the starter motors.
  • the starter motors are formed by a structure comprised basically by a solenoid cooperating with an actuating lever that, in turn, displaces the pinion or free wheel to connect with the crankshaft of a combustion engine.
  • the actuation of these mechanisms occurs by an electrical supply from when the automotive vehicle conductor rotates the key, actuates the stating button on the vehicle panel or the ECU of the vehicle activates the starting.
  • the solenoid receives an electrical signal by its actuating terminal of the engine, which is also called “borne #50", in a way to actuate the coil of said solenoid and, this way, generates a magnetic field that pulls the armature of the solenoid, dragging the actuating lever of the stating engine.
  • said actuating lever pushes the pinion or free wheel for connecting on the crankshaft gear and, at the same time, solenoid closes the electrical contact of the main circuit and energizes the coil and the armature of the starting engine, producing a magnetic field and, consequently, the rotation movement of the motor with torque and speed sufficient to the crankshaft actuates the combustion engine.
  • Another available solution on the prior art comprises a combination of welding and locking by crimping of the diode terminals together with the solenoid structure. More specifically, this way of insert and install said diode consists on crimping one of diode's terminals together with the male support of borne #50, while the other terminal is welded on the solenoid magnetic core. It is observed that, despite being functional until nowadays, this solution is still complicated, and can be improved and/or optimized, especially regarding the manufacturing process to guarantee the proper positioning of said electrical contacts.
  • the locking by crimping process requires elements and additional parts to support and lock the terminals and, moreover, to serve as connectors of the diodes. It should be noted that this crimping, not rarely, makes the solenoid manufacturing overly laborious, once the access to the parts to be connected and locked can be hard due to the device design, mainly to the tools that perform the process.
  • the present invention refers to a housing assembly for voltage suppressor diode, especially for starter motor solenoids, said solenoid comprising a lid in which are disposed electrical contact terminals, including an actuating terminal, which is fixed together with the lid body by a fixing element, the assembly characterized by the fact that the fixing element comprises at least one housing port in which the voltage suppressor diode is mounted; the voltage suppressor diode comprises a first terminal and a second terminal, being the first terminal disposed tightly and completely involved by the internal surface of the housing port, providing electrical contact with the fixing element; and the second terminal projecting outside the housing port and cooperating with an intermediate element, responsible for providing electrical grounding of this second terminal.
  • the intermediate element is a metallic support that can be crimped on the second terminal, or comprises an elastic component guiding the second electrical terminal and cooperating with the solenoid lid.
  • said intermediate element includes an annular portion with which involves and contacts with the second terminal and at least one rod that extends from the annular portion and projects beyond the longitudinal extension of said second terminal, being the height of the intermediate element larger than the height of the space between the fixing element end and the solenoid magnetic core.
  • the electrical contacts of the first and second terminal of the voltage suppressor diode are due to mounting by interference.
  • the present invention relates, also, to a manufacturing and assembling method of housing assembly for voltage suppressor diode, characterized by comprising the following steps:
  • said method can include, before insertion of the voltage suppressor diode inside the housing port, the gluing, welding or injection step of resin on the housing port, between the voltage suppressor diode and the internal surface.
  • Figure 1 shows a sectional view of a conventional starter motor for automotive vehicles.
  • Figure 2A shows a perspective view of the solenoid lid of a starter motor, as shown on Figure 1 ;
  • Figure 2B shows a top view of the solenoid lid, as shown on Figure 2A;
  • Figure 2C shows an enlarged sectional view, as lines C-C indicated on solenoid lid shown on Figure 2B;
  • Figure 3 shows a sectional perspective view of part of the housing assembly for the voltage suppressor diode, as preferred embodiment of the present invention
  • Figure 4A shows a front view from part of the diode housing assembly, as preferred embodiment of the present invention.
  • Figures 4B and 4C shows sectional frontal views from the fixing element, as the present invention, without the diode and with the diode mounted respectively;
  • Figure 4D shows a top view from part of the diode housing assembly, as the present invention.
  • Figure 5 shows a schematic view of the diode housing assembly, as a whole, with the solenoid lid already mounted on the body.
  • said solenoid (S) comprises a lid (T) where the electrical contact terminals are positioned, including the starting terminal (B), also called borne #50, which is fixed together with the lid body (T) by a fixing element (P).
  • the subject of the present invention is especially innovative, so, due to the fact that the fixing element (P) have a housing port (1 ), in which the voltage suppressor diode (D) is mounted, being this diode (D) provided with a first terminal (6') and a second terminal (6") that extend in opposite directions from the distal ends of its body.
  • the first terminal (6') is disposed tightly and completely involved by the internal surface (2) of the housing port (1 ), which ends up defining the electrical contact between this first electrical pair (6', 2).
  • the first terminal (6') of diode (D) contacts the fixing element (P), which, in turn, is contacted with the starting terminal (B), by which the electrical current reaches the solenoid (S).
  • the second terminal (6") of the diode (D) projects outside the housing port (1 ) and cooperates with an intermediate element (3), which is responsible for providing electrical grounding of this second terminal (6").
  • said intermediate element (3) is responsible for helping the electrical connection of the second terminal (6") with one reference (ground). This way, it is possible that the intermediate element (3) is a metallic support, preferentially crimped together with said second terminal (6") or, alternatively, a guide elastic component.
  • the guide elastic component is manufactured in a flexible and insulating material, and mainly that is capable of deforming when subjected to pressure when the lid (T) is coupled to the body of the solenoid (S). More preferentially, this material can be chosen between rubber, silicone, plastic and other insulating polymers.
  • the guide elastic component would be responsible just for conducting the second terminal (6") to its respective electrical pair, which is, the magnetic core (N) or the shell of the solenoid (S), for example.
  • such guide elastic component can be a tablet having an accommodating groove for said second terminal (6"), being capable, thus, of housing and electrically insulating the second terminal (6"), due to the material properties and, also, its geometry.
  • said intermediate element (3) is a metallic support crimped, as already mentioned, wherein this support has several possible shapes.
  • the metallic support has an annular portion (4) which involves, at least partially, and contacts the perimeter of the second terminal (6"). From this annular portion (4), extends at least one rod (5) projecting beyond the longitudinal extension of said terminal (6").
  • height (H) of the intermediate element (3) is greater than the height on space (E) between the end of the fixing element (P) and the magnetic core (N) of solenoid (S).
  • said method includes, particularly, the steps of machining a housing port (1 ) on a fixing element (P), in a way that this housing port (1 ) should have, preferentially, variable diameter; the insertion of a voltage suppressor diode (D) inside the housing port (1 ), in a way that its first terminal (6') is positioned on the more interior portion of the housing port (1 ), region in which the diameter is smaller than on the more exterior regions of the housing port (1 ).
  • said first terminal (6') remains tightly housed and in contact with the internal surface (2).
  • the diode housing assembly is capable of promoting several advantages and technical benefits, practical and functional, eliminating complex, costly and hard process steps. Furthermore, it is possible to guarantee the adequate positioning of the first and second terminals (6', 6") of diode (D) related to the starting terminal (B) and the reference of electrical grounding, on this case, the magnetic core (N) of solenoid (S).
  • first and second terminals (6', 6") of diode (D) being apart and isolated from each other, without providing any contact risk between them and, consequently, eliminating eventual risks on diode functioning fault and, as a result, can reduce the problems and inconvenient generated by the electrical pulses generated by power up and power down solenoid coils.
  • the diode housing assembly object of the present invention, can have, as practical result, the adequate support of diode (D), and at the same time, assures that terminals (6', 6") of said diode (D) are positioned against the starting terminal (B) contact and the reference of electrical grounding, each one with its respective pair.
  • the disposition of diode (D) inside the housing port (1 ) provided on the fixing element (P) makes possible an advantage referring to manufacturing and mounting method of the assembly, which is, the possibility of mounting diode (D) and realizing the crimping process of the intermediate element (3) together with the second terminal (6") before “screwing” (or “riveting” for example) the fixing element (P) together with the starting terminal (B).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnets (AREA)

Abstract

La présente invention concerne un ensemble de boîtier de diode de suppression de tension, particulièrement développé pour application dans des solénoïdes de moteurs de démarreur utilisé sur des véhicules automobiles. Plus préférablement, le solénoïde pourvu du boîtier de diode, objet de l'invention, comprend des caractéristiques techniques, de construction et fonctionnelles totalement innovantes et qui permettent d'obtenir une solution simple, pratique et très efficace liée à l'installation et au logement de diodes sur les solénoïdes sans, avec celui-ci, affecter la configuration structurelle de diodes ou la structure des moteurs de démarreur. Par conséquent, ledit ensemble de boîtier de diode comprend : un élément de fixation (P) comportant un orifice de boîtier (1), dans lequel la diode de suppression de tension (D) est montée ; la diode de suppression de tension (D) comportant une première borne (6') et une deuxième borne (6"), la première borne (6') étant disposée de façon totalement et hermétiquement confinée par la surface interne (2) de l'orifice de boîtier (1), assurant un contact électrique avec l'élément de fixation (P) ; et la deuxième borne (6") faisant saillie à l'extérieur de l'orifice de boîtier (1) et coopérant avec un élément intermédiaire (3), responsable de la mise à la masse électrique de cette deuxième borne (6").
PCT/BR2016/050044 2016-02-29 2016-02-29 Ensemble de boîtier pour diode de suppression de tensions et procédé de fabrication et d'assemblage de celui-ci WO2017147666A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2016/050044 WO2017147666A1 (fr) 2016-02-29 2016-02-29 Ensemble de boîtier pour diode de suppression de tensions et procédé de fabrication et d'assemblage de celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2016/050044 WO2017147666A1 (fr) 2016-02-29 2016-02-29 Ensemble de boîtier pour diode de suppression de tensions et procédé de fabrication et d'assemblage de celui-ci

Publications (1)

Publication Number Publication Date
WO2017147666A1 true WO2017147666A1 (fr) 2017-09-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148781A (en) * 1995-02-03 2000-11-21 Robert Bosch Gmbh Starting device for an internal combustion engine, especially of a motor vehicle, with a redundancy circuit
DE102006032946A1 (de) * 2005-12-07 2007-06-21 Mitsubishi Denki K.K. Anlasser
JP2008196373A (ja) 2007-02-13 2008-08-28 Mitsuba Corp スタータ
US20110248803A1 (en) * 2010-04-13 2011-10-13 Denso Corporation Electromagnetic switch
WO2015095944A1 (fr) * 2013-12-27 2015-07-02 Robert Bosch Limitada Noyau de réception de diode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148781A (en) * 1995-02-03 2000-11-21 Robert Bosch Gmbh Starting device for an internal combustion engine, especially of a motor vehicle, with a redundancy circuit
DE102006032946A1 (de) * 2005-12-07 2007-06-21 Mitsubishi Denki K.K. Anlasser
JP2008196373A (ja) 2007-02-13 2008-08-28 Mitsuba Corp スタータ
US20110248803A1 (en) * 2010-04-13 2011-10-13 Denso Corporation Electromagnetic switch
WO2015095944A1 (fr) * 2013-12-27 2015-07-02 Robert Bosch Limitada Noyau de réception de diode

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