EP2466598B1 - Electroaimant avec une zone de connexion - Google Patents

Electroaimant avec une zone de connexion Download PDF

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Publication number
EP2466598B1
EP2466598B1 EP11193338.8A EP11193338A EP2466598B1 EP 2466598 B1 EP2466598 B1 EP 2466598B1 EP 11193338 A EP11193338 A EP 11193338A EP 2466598 B1 EP2466598 B1 EP 2466598B1
Authority
EP
European Patent Office
Prior art keywords
coil
pin
pins
casing
guiding piece
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.)
Active
Application number
EP11193338.8A
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German (de)
English (en)
Other versions
EP2466598A2 (fr
EP2466598A3 (fr
Inventor
Claus-Peter Hasel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SVM Schultz Verwaltungs GmbH and Co KG
Original Assignee
SVM Schultz Verwaltungs GmbH and Co KG
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 SVM Schultz Verwaltungs GmbH and Co KG filed Critical SVM Schultz Verwaltungs GmbH and Co KG
Publication of EP2466598A2 publication Critical patent/EP2466598A2/fr
Publication of EP2466598A3 publication Critical patent/EP2466598A3/fr
Application granted granted Critical
Publication of EP2466598B1 publication Critical patent/EP2466598B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5083—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a wedge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/062—Details of terminals or connectors for electromagnets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • the invention relates to an electromagnet consisting of a coil which generates a magnetic field when electrical current flows through, a connection region for a current source, at least one current-carrying pin being arranged on the connection region.
  • connection area is formed, for example, by a plug-in contact.
  • a compound between the coil and the connection area or plug contact made by strands.
  • the strands or small wires are soldered to the arranged on the connection area pin and connected in the same way with a solder connection to the wire which is wound on the spool.
  • the coil thus comprises a bobbin carrying a plurality of wire windings.
  • the electrical contacting takes place in the installed state.
  • the attachment of the electrical connection, for example, by a solder joint is relatively expensive and therefore costly. It is advantageous in the use of the stranded connection between the connection region or plug and the coil that this compound is relatively stable to vibration, that is, has a relatively high reliability, when the generic electromagnet is installed, for example, in arrangements that vibrate or vibrate.
  • JP 2973629 B2 ( Fig.2 ) discloses an electromagnet having a coil and a terminal region for a power source, wherein a live pin (110) is welded to a coil connector (109), the coil connector being connected to the coil.
  • the current-carrying pin and the coil connector are cast in a solid part.
  • the document DE 10029279 discloses a magnetic coil with a consisting of an insulating material, substantially hollow cylindrical coil carrier which can be pushed onto a housing support and provided with at least two connection carriers and with a contact element.
  • the invention has set itself the task of providing an electromagnet, as described above, available, on the one hand inexpensive to produce, but on the other hand is reliable in operation.
  • the invention proposes an electromagnet according to claim 1.
  • the invention hereby proposes several synergistically supporting individual measures: On the coil, it is already known to use a coil connector, which connects, for example, by a solder connection coming from the plug wire. According to the invention, it is now proposed to connect the coil connector to the pin, which is also already present at the plug contact, plug or connection region (these terms are used interchangeably in the context of this application), by a welded connection.
  • the welded connection is for example made by means of resistance welding or laser spot welding and is automated with high precision and quality and can therefore be carried out at favorable costs.
  • the use of a guide piece which can be plugged onto the pin has the advantage that the assembly of the electromagnet according to the invention is simple and reliable.
  • the guide piece serves to clearly and reliably position the pin (s) (often the plug contact or connection area comprises several poles and therefore pins) and also to hold them in the correct position during the connection, that is to say during the welding.
  • the guide piece serves to realize a reliable welded connection.
  • connection area is formed by a plug connection.
  • the plug-in connection or the plug-in contact is realized, for example, by the outside of the housing plane through the accurately fitting merging of two interacting elements, for example, the pin and a sleeve receiving the pin.
  • the term pen is to be read on any connecting element which serves for the conduction of current and is not limited to a longitudinally extending configuration.
  • the pin in the plug contact can also be designed as a sleeve. It is clever that the provided in the connection area pin, if necessary, is extended and so to a the otherwise known strand replacing, current-conducting element.
  • pin according to the invention thus also includes a sleeve or pipe.
  • the coil connector is sufficiently rigid or stiff to remain in the desired position during the assembly process and also subsequent welding.
  • the guide piece is attached in a suitable manner to at least one pin. Due to the adhesion between the guide piece and the at least one pin, there is a force coupling between the pin and the guide piece, whereby the pin is positioned by the guide piece in a suitable manner.
  • the guide piece is aligned for example in a suitable manner in the electromagnet and / or fixed.
  • connection region that is to say in particular the plug contact
  • the guide piece is supported on the housing.
  • the electromagnet is surrounded by a housing.
  • the connection area which forms, for example, the plug-in contact, is arranged in the housing.
  • the housing is optionally divided into several contiguous sub-housing and designed according to the invention so that the guide piece is supported on the housing.
  • the support is again at least non-positively, if not even formed liquid, whereby the positioning of the at least one pin is supported by the guide piece.
  • the guide piece vibrationally stabilizes the at least one pin.
  • the leader not only makes a significant Contribution to a cost-effective and reliable production of the electromagnet according to the invention, but sets in a suitable manner, the pin at its remote from the connection area (plug-in area) end.
  • the entire assembly is additionally vibration stabilized and in particular the weld no longer mechanically stressed.
  • the guide piece has at least one opening and / or a recess for receiving the at least one pin and the opening or the recess has a slope and the pin has one or more bends in a Abwinkel Anlagen.
  • one or more openings or recesses are provided on the guide piece.
  • the opening or the recess has one or more bevels. This bevel closes with the longitudinal extent of the pin a preferably acute angle, with the result that in a Aufsteckterrorism of the guide piece on the pin, the pin is thereby angled like a backdrop, which is why one or more bends arise in a Abwinkel Geb the pen.
  • the invention is not limited in terms of the number of recesses and openings in relation to the number of pins on the connection area or plug. So it is possible that not only a pin is passed through a breakthrough or the recesses, but also several pins.
  • the guide piece not only causes the backdrop-like angling, but defines the ends of the pin (s) with respect to a rotational movement (rotational with respect to an axis of rotation parallel to the longitudinal, non-angled pins). This also facilitates the positioning of the pin just for welding to the coil connector.
  • the plugged-on guide piece presses a pin provided for earthing the housing against the electrically conductive housing. This makes it possible in a simple manner, to realize a grounding of the housing via a pin provided for this purpose of the connection area / plug contact. In addition, of course, a welding of the already pressed to the housing pin with the housing or a special supernatant, which serves for this, in a variant of the invention possible.
  • a rotary attachment of the guide piece or of the pin (s) as described above preferably takes place in a variant according to the invention by a positioning arrangement between the guide piece and the housing.
  • the positioning arrangement is realized, for example, by the positive cooperation of a nose and a recess, which are respectively arranged on the guide piece or the housing.
  • the positioning arrangement can also be formed in other ways, for example by a corresponding shaping of the outer contour of the guide piece and the cross section of the housing in which the guide piece is to be inserted.
  • the pin (s) is / are longer than half, in particular longer than 70% of the coil length.
  • the length of the pin is considered at least the length of the pin arranged in the housing.
  • the pin penetrates the housing level in the plug and is outward for the formation of the plug contact led out.
  • the invention comprises in this feature both solutions, that is, both the entire effective length of the pin inside and outside the housing, as well as the variant in which the length is considered only the length of the pin extending in the housing.
  • the advantage of this feature is that the connection technology, ie the connection region or plug contact is arranged on one side of the electromagnet according to the invention.
  • the pin preferably extends parallel to the longitudinal axis of the coil, in particular from the front of the electromagnet, which is formed by the connection elements (armature opening and plug contact) to its rear side.
  • the guide piece is designed as a plastic part, in particular as a plastic injection part.
  • the guide piece is so cheap producible in large quantities.
  • the pin has both an area which runs in the housing and a region which can be arranged outside the housing.
  • the pin is part of a connector, wherein the term "pin" also includes a sleeve-like configuration (as occurs in plug contacts) equivalent.
  • the coil connector is formed as a stamped part or as a stamped and bent part.
  • the coil connector provides an electrically conductive connection between the wire of the coil and the pin and thus ultimately with the power supply, which is connected to the connection area or plug, is the embodiment of the coil connector as a stamped part or Stamped bent part ensures a very cost-effective production.
  • the bobbin on which the wire of the bobbin is wound, carries the bobbin connector, for which purpose, for example, a clamping or adhesive connection or the like is provided.
  • the pins which penetrate the housing in the plug, initially arranged in parallel.
  • a plurality of terminals and therefore also a plurality of pins are provided in the connection area.
  • the guide piece has not only the task to effect a corresponding positioning of the / of the pins, but also achieved, as described, a corresponding bending of the pin / pins in a suitable manner, for example, to make a protective earth contact with the housing or a corresponding Positioning of the pins with each other and in relation to the coil connector produce. It therefore follows that at least one pin is bent one or more times.
  • a combination of non-angled and angled pins is also included in the invention.
  • the coil connector has a length which is greater than 30% of the diameter of the coil.
  • the coil connector is therefore significantly larger than just the pure pad and also has a power line function. It is preferably provided in particular that the coil connector is longer than 50% of the diameter of the coil. In particular, a length is preferred which is greater than 60% of the diameter of the coil, in special applications, a length of the coil connector of more than 75% of the diameter of the coil may be favorable. It turns out skillfully that the coil connector extends at least at an acute angle, preferably at a right angle to the coil axis, in particular on the coil axis.
  • the invention furthermore also includes a method according to claim 12 for the production of an electromagnet according to claim 1.
  • the object stated at the beginning is solved in the same way also by the method according to the invention.
  • the arrangement is preferably chosen so that the coil connector has a relatively large length, such that it connects the spatially distanced connection area with the coil.
  • the sequence of steps is consistent and advantageous in that the guide piece provides for proper positioning of the pin or pins relative to the respective coil connectors.
  • the inserted guide piece assists in the correct arrangement, especially in the subsequent welding, whereby the correct positioning favors a rapid welding and thus an unavoidable heat input in this area is considerably reduced.
  • the guide piece is used so that a positioning of the pin relative to the coil connector takes place under a "bias" of the pin relative to the coil connector, so there is already an electrical contact, which is then stabilized by the welding.
  • the pins are preferably made considerably longer.
  • the pins are realized as straight running elements, where appropriate between these also other electronic components, such as resistors or diodes, can be provided, this depends on the particular Verschaltungsschema.
  • FIG. 1a, b, c an inventive solenoid 1 is shown schematically.
  • connection region 3 is formed by a plug contact 30, this is formed by a plurality of pins 4, which penetrate the plug from outside to inside, that is in the housing 10.
  • the pins 4a, b, c, d are arranged on the connection region 3.
  • the connection portion 3 is arranged below, the pins 4 extend from the front (lower) end of the housing 10 upwards.
  • the pin 4a shows in Abwinkel Bachelor 40 two opposite directions 41.
  • the pin 4c is angled.
  • the ends of the pins 4a, b, c protrude beyond the latter and thus form a connection possibility for the coil connectors 6 which project at right angles thereto and produce an electrical connection from the pins 4 to the wire of the coil 2.
  • the windings of the coil 2 is located on a bobbin 20th
  • the housing 10 used in the electromagnet 1 according to the invention is relatively complex. It consists of two Sub-housings 12, 13, wherein the sub-housing 12 receives the plug-in contact 30 with the adjoining, within the sub-housing 12 extending pins 4, 4a, 4b, 4c.
  • the partial housing 13 essentially accommodates the bobbin 20 or the coil 2.
  • the sub-housings 12, 13 are, for example, cylinder-shaped and connected to one another by a transverse web 14 in the rear region.
  • the in Fig. 1c upper area (actually the rear area of the electromagnet 1) open. This can be closed pressure-tight by a lid to be inserted (not shown).
  • the electromagnet 1 is characterized in that inside the coil 2 an armature space (not shown) is provided, in which an armature is arranged. If current is applied to the wire winding of the coil 2, the magnetic field generated moves the armature in the direction of the coil axis 21.
  • a corresponding arrangement can be connected to the connection piece 22 on which the armature acts. This may be, for example, a valve block or the like.
  • Fig. 1c shows the (almost) ready mounted situation of the electromagnet 1 according to the invention. It still lacks the back, aufaillede on the coil or coil connector 6 lid.
  • Fig. 1a and 1b show earlier stages of assembly of the electromagnet according to the invention 1.
  • the manufacturing method of the electromagnet 1, which also belongs to the invention, begins in particular in FIG Fig. 1a , The situation to be found here shows the plug contact 30, which is inserted into the left part of the housing 12, wherein the extending in the housing 10 pins 4 extend substantially parallel upward and the guide piece 7 is not yet placed on the pins 4, but is placed outside , The coil 2 is not yet inserted.
  • the guide piece 7 is along the arrow 73 after moved down and so pressed on the pins 4.
  • the guide piece 7 is plugged onto the pin until the upper ends of the guide piece dive again.
  • This situation is in Fig. 1c or from above in Fig. 3 shown.
  • the pin 4 or the pins 4a, b, c were positioned so that in a simple manner, a welded joint 5 with the coil connector 6 (for the pins 4, 4a, 4b) can be produced.
  • the pin 4 c is pressed by the slope 72 against the housing 10 and fixed by a welded joint 50 on the supernatant 11.
  • the projection 11 is also part of the positioning assembly 8 and is positively in a groove or recess 71 a of the guide piece 7 a.
  • the coil connector 6 is in particular in Fig. 3 (from above) good to see.
  • the coil connector 6 is firmly welded to the end portions of the pins 4a, 4b, 4d, which is a simple but inexpensive and in particular represents reliable connection technology.
  • a welded joint 5 is provided for the connections between the pins 4, 4a, 4b with the coil connector 6, for the connections between the pins 4, 4a, 4b with the coil connector 6, a welded joint 5 is provided.
  • the guide piece 7 has the shape of a plug and is formed, for example, as a plastic injection molded part. It has substantially centrally or centrally, the guide piece in the direction of insertion penetrating openings 70, similar holes and in the lateral region groove-like recesses 71, 71 a, which form a backdrop for guiding the pins 4 in their end or welding positions.
  • the bevels 72 are oriented so that they include in Aufsteckcardi 73 when the guide piece 7 is not yet placed on the pins 4, with the pin 4 form an acute angle.

Claims (13)

  1. Electroaimant (1) constitué d'une bobine (2), qui génère un champ magnétique lors du passage de courant électrique, d'une zone de raccordement (3) pour une source de courant, d'au moins une broche conductrice (4a, 4b, 4d), d'une broche (4c) prévue pour la mise à la terre d'un boîtier (10) électro-conducteur de l'électro-aimant et d'une pièce de guidage (7), dans lequel l'au moins une broche conductrice (4a, 4b, 4c) et la broche (4c) prévue pour la mise à la terre du boîtier sont disposées sur la zone de raccordement (3) et la broche conductrice est reliée à un connecteur de bobine (6) sensiblement rigide par l'intermédiaire d'une liaison de soudage (5) et le connecteur de bobine (6) est relié à la bobine (2), et la broche conductrice est positionnée à son extrémité opposée à la zone de raccordement (3) par la pièce de guidage (7) enfichée sur la broche conductrice, dans lequel la zone de raccordement (3) est disposée dans le boîtier (10) de l'électroaimant (1) et la pièce de guidage (7) s'appuie contre le boîtier (10),
    dans lequel la pièce de guidage (7) enfichée presse la broche (4) prévue pour la mise à la terre du boîtier contre le boîtier (10) électro-conducteur.
  2. Electroaimant selon la revendication 1, caractérisé en ce que la pièce de guidage (7) stabilise au moins une des broches vis-à-vis des vibrations.
  3. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce de guidage (7) présente au moins une ouverture (70) et/ou un évidement (71) pour le logement d'une des broches et l'ouverture (70) ou l'évidement (71) présente un chanfrein (72), et la broche (4) présente dans une zone coudée (40) un ou plusieurs coudes (41).
  4. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ensemble de positionnement (8) est prévu pour la pièce de guidage (7).
  5. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce de guidage (7) est réalisée sous la forme d'une pièce en matière plastique, en particulier sous la forme d'une pièce moulée en matière plastique.
  6. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une partie saillante (11), sur laquelle une liaison soudée (50) à la broche (4c) destinée à la mise à la terre du boîtier est présente, est prévue sur le boîtier (10).
  7. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une des broches ou les broches est/sont plus longues que la moitié, en particulier plus longues que 70 % de la longueur de bobine.
  8. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce que les broches font partie d'une liaison enfichable et/ou plusieurs broches (4, 4a, 4b, 4c) s'étendant initialement parallèlement, qui traversent la pièce de guidage (7) et présentent, au moins en partie, un coude (41), sont disposées dans la zone de raccordement (3).
  9. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce que le connecteur de bobine (6) est réalisé sous la forme d'une pièce découpée ou découpée et pliée.
  10. Electroaimant selon l'une quelconque des revendications précédentes, caractérisé en ce que le connecteur de bobine (6) de l'électroaimant (1) présente une longueur qui est plus grande que 30 %, en particulier plus de 50 %, de préférence plus de 60 % ou plus de 75 % que le diamètre de la bobine (2).
  11. Electroaimant selon la revendication 10, caractérisé en ce que le connecteur de bobine (6) s'étend au moins selon un angle aigu, de préférence à angle droit par rapport à l'axe de bobine.
  12. Procédé pour la fabrication d'un électroaimant selon l'une ou plusieurs des revendications précédentes, dans lequel la zone de raccordement avec les broches s'étendant dans le boîtier se situe dans le boîtier et la pièce de guidage est tout d'abord enfichée sur les broches, ensuite la bobine est insérée dans le boîtier avec le connecteur de bobine réalisé de manière sensiblement rigide et ensuite la broche conductrice est soudée au connecteur de bobine.
  13. Procédé selon la revendication 12, caractérisé en ce que l'enfichage de la pièce de guidage d'une des broches subit un ou plusieurs coudes.
EP11193338.8A 2010-12-20 2011-12-13 Electroaimant avec une zone de connexion Active EP2466598B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010055212A DE102010055212A1 (de) 2010-12-20 2010-12-20 Elektromagnet mit einem Anschlussbereich

Publications (3)

Publication Number Publication Date
EP2466598A2 EP2466598A2 (fr) 2012-06-20
EP2466598A3 EP2466598A3 (fr) 2017-04-19
EP2466598B1 true EP2466598B1 (fr) 2019-10-23

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ID=45464244

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Application Number Title Priority Date Filing Date
EP11193338.8A Active EP2466598B1 (fr) 2010-12-20 2011-12-13 Electroaimant avec une zone de connexion

Country Status (4)

Country Link
US (1) US8587397B2 (fr)
EP (1) EP2466598B1 (fr)
DE (1) DE102010055212A1 (fr)
RU (1) RU2604637C2 (fr)

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RU2604637C2 (ru) 2016-12-10
EP2466598A2 (fr) 2012-06-20
CN102610359A (zh) 2012-07-25
DE102010055212A1 (de) 2012-06-21
US8587397B2 (en) 2013-11-19
US20120154078A1 (en) 2012-06-21
RU2011149977A (ru) 2013-06-20
EP2466598A3 (fr) 2017-04-19

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