JP2015533252A - Electrical connector - Google Patents

Abstract

An electrical connector (32) is provided for the injector assembly (10), preferably a type of injector assembly (10) having a solenoid (18). The electrical connector (32) houses the first and second conductive elements (34, 36), means for receiving the first connection means to the solenoid (18), and the first and second conductive elements. A non-conductive overmold (38) defining an opening (44) for receiving a second connection means to the power supply so that the solenoid (18) can be electrically connected to the power supply. [Selection] Figure 2

Description

  The present invention relates to an electrical connector for an injector. In particular, but not by way of limitation, the present invention relates to an electrical connector for supplying power to an actuator assembly in a fuel injector and to a solenoid actuator assembly for a fuel injector used in an internal combustion engine.

  Modern fuel injectors typically include a solenoid as a means for opening and closing the valve during operation of the injector. In order for the solenoid to operate, power must be supplied. This is difficult because the solenoid may be located deep inside the injector. Also, with regard to the space where electrical wiring must be accommodated, the top of the injector generally has considerable height limitations imposed by peripheral components of the engine environment. A further difficulty that electrical wiring must overcome is that the electrical wiring must be able to withstand the various forces and vibrations it receives when the engine is operating in order to maintain an electrical connection.

  The current solution to these difficulties is to provide a pair of elongated metal conductive elements or blades that extend into the injector bore and connect to the solenoid. To ensure that the connection remains stable when subjected to vibrations and other forces that are inherently involved when the engine is running, the end where the blade contacts the solenoid connection point is welded. Is done. A plastic overmold that houses the blade is provided to electrically insulate the blade from the injector. At the top of the injector, the blade and the plastic overmold protrude from the upper end of the injector hole, and the upper end of the blade is exposed. Here, a connector for supplying electric power is connected to the blade. In view of the above height restrictions, this connection is arranged perpendicular to the blade.

  The main problem with this solution is that due to the uniqueness of the blades that must be connected, a custom connector is required for the connection, which is expensive.

  A further problem with this solution is that the process of welding at the connection point is also expensive.

  It is an object of the present invention to overcome or at least mitigate some of the disadvantages of the prior art as described above.

  According to a first aspect of the present invention, an electrical connector for an injector assembly having an actuator is provided. The electrical connector includes first and second conductive elements, means for receiving first connection means to the actuator, and a non-conductive overmold that houses the first and second conductive elements. The non-conductive overmold defines an opening that receives a second connection means that connects to the power source so that the actuator can be electrically connected to the power source.

  The present invention is technical in that the opening defined by the non-conductive overmold is arranged to receive a standard electrical connector, thereby eliminating the need for a custom connector to connect the electrical connector to a power source. Provide a good profit. Furthermore, the space required for the connector can be reduced by providing a single integrated overmold. This is advantageous in engine environments where space is limited.

  The electrical connector described above is particularly advantageous when used in an injector assembly having a solenoid actuator including a solenoid, but is also used to connect the piezoelectric actuator to a power source in an injector with a piezoelectric actuator. Will be able to.

  Said opening may be arranged to receive a second connecting means in the form of first and second terminals of a standard electrical connector for a power source. This is beneficial because there is no need to provide a custom connector, which significantly reduces the cost of using the present invention.

  The connection means may include first and second connection pins that form part of the actuator assembly. Each of the above conductive elements may have a connection portion at or near the end thereof, and the first and second conductive elements may be arranged to connect to the first and second connection pins. . This allows the electrical connector to form a reliable and robust electrical connection to a standard solenoid arranged with the connection pins.

  Each of the above connections may take the form of a connection ring that receives a respective one of the connection pins of the actuator assembly.

  The non-conductive overmold described above may be provided with means for aligning the electrical connector within the injector assembly. This facilitates the mounting of the electrical connector and prevents the conductive element from being damaged by inserting the connector without proper alignment. In addition, since the connection ring not only contacts the first and second pins but also fits them, a correct electrical connection is ensured.

  The first and second conductive elements may be arranged such that the connection rings are concentric with each other. This ensures that the electrical connector can be inserted in any orientation with respect to the injector assembly and that a good electrical connection is always achieved. This also allows the electrical connector to be placed in the most convenient position in relation to surrounding components. For example, the connectors can be arranged so that the openings face the power source, so that the distance between them is the shortest. This means that shorter cables or wires can be used to connect the two.

  The non-conductive overmold may be arranged to extend beyond the connection of the conductive element to define an additional opening or cavity that receives the first connection means. This feature provides the advantage that the conductive element is completely shielded from surrounding components during installation and use.

  In another embodiment of the present invention, the end face of each conductive element is arranged to abut the contact face of the solenoid. This arrangement provides the advantage that the electrical connector can be used in a standard actuator assembly with contact surfaces rather than connecting pins.

  In one embodiment, at least one of the conductive elements may have an elastically compressible portion formed to allow axial compression of the conductive element. Thereby, the electrical connector can be used for various sizes of injector solenoid assemblies, for example with different depths of the first connecting means in the injector assembly. Similarly, this allows manufacturing tolerances that can also affect the depth of the first connection means within the injector assembly. In addition, an axial biasing effect is provided, which ensures that the electrical connection is maintained during operation of the injector assembly.

  For example, the non-conductive overmold jacket covering the elastically compressible portion of the conductive element is formed relatively thin with respect to the rest of the jacket. This increases the flexibility of the jacket and allows the non-conductive overmolds to expand and contract in the same way as the conductive elements they cover.

  In one embodiment, each of the conductive elements is individually covered with a layer of electrically insulating material. This ensures that no electrical short is formed.

  The electrical connector may comprise an intermediate electrical connector that connects directly to the actuator when in use. At this time, the first and second conductive elements are arranged to connect to the intermediate electrical connector. This feature allows the electrical connector to be used in a variety of injector assemblies by simply selecting an appropriate intermediate connector for the type of first connecting means disposed on the actuator.

  The intermediate electrical connector may be electrically connected to the first and second conductive elements using wires. This allows the present invention to be used with different sized injector assemblies because the wires are arranged to accommodate differences due to the different lengths of the conductive element and the first connecting means.

  In one embodiment, each of the first and second conductive elements described above has an upper portion and a lower portion, and the upper portion extends in a direction substantially perpendicularly away from the lower portion. This means that the opening is substantially perpendicular to the longitudinal axis of the actuator assembly and the second connecting means connects to the electrical connector from the side rather than from above. This is further advantageous in that the overall height of the injector assembly is reduced and the space in the engine environment is limited.

  In other embodiments, the aperture need not be perpendicular to the longitudinal axis of the actuator assembly and may be at a different angle with respect to the axis of the actuator assembly.

  According to a second aspect of the present invention, there is provided a fuel injector comprising an injector actuator assembly and an electrical connector according to the first aspect of the present invention, wherein the fuel injector comprises an injector actuator assembly. An injector hole is defined for receiving therein.

  In one example, the non-conductive overmold described above is provided with a bushing that is arranged to be a press fit within the injector hole to retain the electrical connector within the injector hole. This feature helps to ensure that the electrical connector remains in place when the engine with the injector assembly as one part is operating. This ensures that the electrical connection is maintained and that the electrical connector or surrounding components are not damaged by the electrical connector deviating from its home position.

  In another aspect, an electrical connector assembly for supplying power to an actuator assembly of a fuel injector includes first and second conductive elements, means for receiving first connection means to the actuator, A non-conductive overmold that houses the second conductive element. The non-conductive overmold defines an opening that receives the second connection means of the electrical connector assembly so that the actuator can be electrically connected to the power source.

  It will be apparent that the preferred and / or additional features of the first aspect of the invention described above may be incorporated into other aspects of the invention either alone or in any appropriate combination.

  In order that the present invention may be more readily understood, preferred non-limiting embodiments thereof will now be described with reference to the accompanying drawings. In these drawings, like reference numerals are used for like functions.

FIG. 4 is a schematic view of a portion of an injector including a solenoid of the type that can use the present invention, showing the solenoid including a connector in the form of concentric pins. FIG. 2 is a first embodiment of the electrical connector of the present invention with concentric ring connectors arranged to connect to the solenoid of FIG. 1. FIG. 3 is a variation of the embodiment of FIG. 2 in which the connecting blade of the connector is shorter than that in FIG. 2 for connection to a solenoid housed in a short injector hole. FIG. 5 is a diagram of a second embodiment of the invention, in which the connecting blades of the connector are parallel to each other for connection to a solenoid having two parallel connecting pins. FIG. 6 is a diagram of a third embodiment of the present invention, wherein each of the connection blades has a flexible portion for biasing the connection blades into contact with the solenoid connector. FIG. 6 is a view of a fuel injector assembly with the electrical connector of FIG. 5 fitted therein. FIG. 7 is an exploded view of the fuel injector assembly of FIG. 6. FIG. 6 is a diagram of a fourth embodiment of the invention, wherein each of the connecting blades comprises a helical portion instead of the flexible portion of FIG. FIG. 9 is a diagram of a fifth embodiment of the present invention in which a connection blade is connected to an intermediate connector that connects to a solenoid.

  Referring to FIG. 1, an injector solenoid assembly 10 for a fuel injector (only a portion 12 of which is shown) is shown, the fuel injector having a nozzle holder body that defines an injector hole 16. (NHB: nozzle holder body) 14, and the solenoid 18 of the actuator assembly of the injector is accommodated in the injector hole 16. The solenoid 18 is fitted to the electrical connector (not shown in FIG. 1) of the present invention. The solenoid 18 extends along the longitudinal axis and is generally cylindrical in shape and includes a first connection pin 20 and a second connection pin 22. The connection pins 20, 22 extend outward from the end of the solenoid 18 and are generally cylindrical and circular in cross section. The first and second connection pins together form a first connection means to the solenoid 18. The second connection pin 22 is arranged to form a ring around the first connection pin 20, and a ring 24 of insulating material separates the two. The first connection pins 20 may extend further outward than the second connection pins 22 as shown in FIG. 1 in order to facilitate connection to the pins. At the time of assembly, it is better that the first pin 20 can be connected first than the connection to both the pins 20 and 22 is required at the same time. This arrangement also serves to insulate the connection pins 20, 22 from each other so as not to form an electrical short. The connection pins 20 and 22 are each chamfered to facilitate the fitting of the electrical connector. The first and second connection pins 20, 22 have wires 26, 28 attached thereto, respectively, and the wires 26, 28 connect each of the connection pins 20, 22 to each end of the solenoid winding 30 of the solenoid 18. To complete the electrical circuit.

  2 and 3, the first embodiment of the internal electrical connector 32 is arranged to connect to the solenoid 18 of FIG. 1 and takes the form of first and second connection blades 34, 36. First and second conductive elements, and a plastic housing 38 overmolded to enclose or house the first and second connecting blades 34,36. The body of the plastic housing 38 is generally cylindrical and is formed in a complementary shape to the hole 16 to fit snugly within the injector hole 16.

  A steel bush 40 may be provided on the plastic housing 38. A steel bushing 40 is embedded in the plastic housing 38 and allows the internal electrical connector 32 to be retained in the injector 12 by press fitting the bushing 40 within the injector bore 16 of the NHB 14. The plastic housing 38 further includes a protrusion 42 extending in a direction away from the main body of the plastic housing 38. The protrusion 42 defines an opening 44 that receives a second connecting means in the form of a standard electrical connector (not shown) having first and second terminals. A standard electrical connector supplies power from a power source (also not shown) to solenoid 18 via internal electrical connector 32.

  The first and second connection blades 34 and 36 are connected to the connection pins 20 and 22 of the solenoid 18, respectively, and have connection rings 46 and 48 at one end. In the present embodiment, the connection rings 46 and 48 are arranged so as to be concentric with each other, and correspond to the arrangement of the connection pins 20 and 22 of the solenoid 18. Since the first connection blade 34 is connected to the first connection pin 20 smaller than the second connection pin 22 surrounding the first connection blade 34, the first connection blade 34 has a connection ring 46 smaller than the second connection blade 36. The connection rings 46 and 48 are formed with an inner diameter smaller than the diameter of the connection pins 20 and 22, so that the connection rings 46 and 48 are securely connected to the connection pins 20 and 22. Each of the connection rings 46, 48 is provided with a slit 50 that allows it to expand to fit into the connection pins 20, 22. The chamfering on the top of each of the connecting pins 20, 22 allows this process to gradually expand as the connecting rings 46, 48 are further pushed down along the chamfered portion of the connecting pins 20, 22. make it easier. If the connecting rings 46, 48 are not provided with slits 50, when the rings move beyond the chamfer, they cannot adapt and expand as the diameter of the corresponding pin increases. The slits 50 in the ring allow the ring to elastically expand when the ring is pressed against the corresponding pin, thus ensuring a good connection.

  As a final position, the connection rings 46, 48 may be located anywhere in the length direction of the connection pins 20, 22. This allows manufacturing tolerances, and if the connection blades 34, 36 move somewhat relative to the connection pins 20, 22 due to vibrations when the engine is running, the connection rings 46, 48 This means that the electrical connection is constantly maintained because it is possible to slide the pins up and down without interrupting contact.

  Each of the connection blades 34, 36 is formed with a bent portion to divide the connection blades 34, 36 into an upper part 52 and a lower part 54, and the upper part 52 extends in a direction away from the lower part 54. The lower portion 54 of the blades 34, 36 has connecting rings 46, 48 and extends into the injector hole 16. The length of the lower portion 54 of the blades 34 and 36 is determined by the depth of the injector hole 16 in which the electrical connector 32 is fitted. The upper portion 52 of the blades 34, 36 protrudes into the opening 44 in the plastic housing 38. In this way, the upper portion 52 of each of the blades 34, 36 acts as a pin and, in conjunction with the protrusion 42 of the plastic housing 38, takes the form of a standard male electrical connector, where there is a standard female electrical connector. Connector can be connected.

  The advantage of this arrangement is that the electrical connection 32 can be inserted into the injector bore 16 in any orientation with respect to the fuel injector 12 due to the concentric connection blades 34, 36. That is. This may be advantageous with respect to directing the electrical connector 32 towards the power source to minimize the required cable length within the engine environment. This is desirable because the space around the injector 12 is limited.

  FIG. 3 shows a modification of the first embodiment of the present invention. Here, the lower portions of the connection blades 34 and 36 are shorter than the lower portions of the connection blades 34 and 36 shown in FIG. This embodiment of the electrical connector 32 is arranged such that the first and second connection pins 20, 22 fit into the injector solenoid assembly 10 that is not so deep in the injector hole 16. This is because the solenoid 18 is formed as a long module as shown in FIG. 3, or the injector hole 16 is not so deep. This modification is otherwise the same as the embodiment of FIG.

  FIG. 4 shows a second embodiment of the present invention. The present embodiment is arranged so as to fit into a solenoid 18 having two connection pins 20 and 22 arranged adjacent to each other, rather than being concentric with each other. Therefore, the lower portions 54 of the connecting blades 34, 36 extend parallel to each other. Each blade 34, 36 has a similarly sized connection ring 46, 48 for connection with a respective one of the connection pins 20, 22 of the solenoid assembly 10. The lengths of the blades 34, 36 in FIGS. 3 and 4 are determined according to the connecting pins 20, 22 to be connected and the space available for receiving the connector parts.

  Similar to the previous embodiment, the connection rings 46, 48 have slightly smaller dimensions and may be further provided with slits 50 for secure attachment to the connection pins 20, 22.

  In contrast to the above embodiment where the connecting blades 34, 36 are concentrically arranged, the electrical connector 32 of FIG. 4 may be sensitive to alignment. That is, if the electrical connector 32 is not inserted into the injector hole 16 in the correct orientation, the connection blades 34, 36 will not align correctly with the connection pins 20, 22, and therefore a good connection will not be formed. Further, pushing the electrical connector 32 into the injector hole 16 without correct alignment may damage the connection blades 34, 36 and the connection pins 20, 22. For this reason, in this embodiment, a pocket 56 is provided in the plastic housing 38 of the electrical connector 32 and is arranged to receive a key 58 provided on the solenoid 18. The key 58 is longer than the connection pins 20 and 22. This means that when the electrical connector 32 is pushed into the injector hole 16, the electrical connector 32 contacts the key 58 before contacting the connection pins 20, 22. Therefore, the electrical connector 32 is pushed further into the injector bore 16 so that the connection blades 34, 36 connect to the connection pins 20, 22 until the key 58 is aligned with the pocket 56 and the electrical connector 32 is properly aligned. That is blocked. Once properly aligned, the electrical connector 32 can be pushed further into the injector bore 16 to connect the connecting blades 34,36 to the connecting pins 20,22.

  For this embodiment, the upper portion 52 of the connection blades 34, 36 takes the form of a standard male electrical connector with an opening 44 defined by the protrusion 42 of the plastic housing 38, similar to the previous embodiment, Accepts female electrical connectors. Moreover, the steel bush 40 for connecting with NHB14 may be provided in the plastic housing 38 like other embodiment.

  2, 3, and 4, the plastic housing 38 extends beyond the connection rings 46, 48 to form a cavity or recess that receives the connection pins 20, 22 of the solenoid 18. It may extend.

  5, 6 and 7 show further embodiments of the present invention. In this embodiment, instead of the first and second connection pins 20 and 22, the first contact surface 60 and the second contact surface 62 are connected to the solenoid 18 provided. The first and second contact surfaces 60, 62 are separated by providing a ring 24 of insulating material therebetween. The contact surfaces 60 and 62 may be arranged side by side or concentrically as shown in FIG. Similar to the embodiment of FIGS. 2 and 3, a concentric arrangement is preferred because it means that the electrical connector 32 can be inserted into the injector bore 16 in any orientation.

  In this embodiment, the connection blades 34 and 36 are not provided with the connection rings 46 and 48. Instead, the first and second connection blades 34, 36 are arranged to abut and connect to corresponding contact surfaces 60, 62 of the solenoid 18. In order to ensure that the connection blades 34, 36 maintain contact with the contact surfaces 60, 62 even when the engine is operating, each of the connection blades 34, 36 has a corresponding contact surface 60, 62. Is biased in the axial direction. This is achieved by the flexible and elastically compressible portions 64 of the blades 34,36. The portion 64 allows the lower portion 54 of the connecting blades 34, 36 to be compressed axially when an axial force is applied by pressing the connecting blades 34, 36 against the contact surfaces 60, 62. Formed to create a biasing force. The connecting blades 34, 36 exert a reaction force of the same size and in the opposite direction on the contact surfaces 60, 62. This means that as long as the connecting blades 34, 36 remain in compression, contact between the connecting blades 34, 36 and the contact surfaces 60, 62 is maintained.

  This flexibility of the portions of the blades 34, 36 can be achieved by forming the blades 34, 36 having a series of pairs of bends, as shown in FIG. In one embodiment, the lower portions 54 of the connecting blades 34, 36 are slightly longer than required for them to reach the contact surfaces 60, 62 of the solenoid 18. As a result, when the electrical connector 32 is fitted into the injector hole 16 to connect with the solenoid 18, the connecting blades 34, 36 are compressed by being pushed by the contact surfaces 60, 62. In this state, when the engine is running, the connection blades 34, 36 will remain at the original uncompressed length even if the solenoid 18 attempts to move away from the electrical connector 32 momentarily due to vibrations from the engine. The contact with the contact surfaces 60, 62 of the solenoid 18 is maintained. The flexibility of the connecting blades 34, 36 also allows manufacturing tolerances in the assembly.

  The plastic housing 38 may be thinner at the portion covering the elastically compressible portion 64 of the connecting blades 34, 36, and the connecting blades 34, 36 and so that the plastic housing 38 is also flexible. It may be the same shape.

  As shown in FIGS. 6 and 7, an intermediate housing 66 may be provided that takes the form of an auxiliary overmold. This protects the ends of the connecting blades 34, 36 and keeps them in place, but keeps the elastically compressible portions 64 of the connecting blades 34, 36 in a freely compressible state as required. It is.

  For this embodiment, similar to the previous embodiment, the upper portion 52 of the connecting blades 34, 36 takes the form of a standard male electrical connector with an opening 44 defined by the protrusion 42 of the plastic housing 38, Accepts a standard female electrical connector. Moreover, the steel bush 40 for connecting with NHB14 may be provided in the plastic housing 38 like other embodiment.

  FIG. 8 shows a modification of the embodiment of FIG. In this embodiment, the elastically compressible portion 64 of the connecting blades 34, 36 is formed as a helical coil to take the form of a spring. As a result, as in the above-described embodiment, the effect of urging the end portions of the connection blades 34 and 36 in the axial direction to contact the contact surfaces 60 and 62 of the solenoid 18 is obtained.

  In this embodiment, since the connection blades 34 and 36 may be tightly wound with respect to each other, it may be difficult to accommodate the connection blades 34 and 36 in the plastic overmold as in the other embodiments. Thus, each of the connecting blades 34, 36 is provided with a separate plastic jacket to electrically insulate the blades 34, 36 from each other and prevent them from coming into direct contact with each other and causing an electrical short circuit. The plastic jacket may be thinly formed and handed to maintain flexibility.

  In the present embodiment, the connection blades 34 and 36 may have a circular cross section or a quadrangular shape.

  Also for this embodiment, similar to the previous embodiment, the upper portion 52 of the connecting blades 34, 36 takes the form of a standard male electrical connector with an opening 44 defined by the protrusion 42 of the plastic housing 38, Accepts a standard female electrical connector. Moreover, the steel bush 40 for connecting with NHB14 may be provided in the plastic housing 38 like other embodiment.

  In another embodiment shown in FIG. 9, the electrical connector 32 includes a first insulated wire 68 and a second insulated wire 70 and an intermediate connector 72 in addition to the connecting blades 34, 36. The connecting blades 34, 36 in this embodiment are short and the lower portion 54 of the blades 34, 36 does not extend deep into the injector bore 16 when the plastic housing 38 is fitted, and is therefore directly on the solenoid 18. Is not connected. Instead, one wire 68, 70 is attached to each of the connection blades 34, 36, and the wires 68, 70 are connected to the intermediate connector 72. The intermediate connector 72 may be connected to the solenoid 18 in any one of the ways described above as other embodiments of the present invention according to the type of connection provided in the solenoid 18, ie, the connection pins 20, 22 or the contact surfaces 60, 62. Connect to. A pair of wires 68, 70 are wrapped around the guide 74, allowing some flexibility in the axial direction. This flexibility compensates for manufacturing tolerances and allows flexibility when the engine is operating. This flexibility also allows electrical connectors to be used with different height injectors. The wire is attached by welding or crimping at both ends. Both the plastic housing 38 and the intermediate connector 72 can be provided with a window for welding or crimping the wire.

  It will be apparent to those skilled in the art that the present invention can be modified in many alternative forms to the form described herein without departing from the scope of the appended claims.

Claims (12)

An electrical connector (32) for an injector assembly (10) having an actuator (18) comprising:
First and second conductive elements (34, 36);
Means for receiving first connection means of said actuator (18);
A first opening (44) that receives the second connection means to the power source is defined to receive the first and second conductive elements and to allow the actuator (18) to be electrically connected to the power source. A non-conductive overmold (38),
The first connection means comprises first and second connection pins (20, 22) forming part of the injector assembly (10);
Each of the first and second conductive elements (34, 36) terminates a connection (46, 48) that connects to one of the first and second connection pins (20, 22), respectively, in use. Have
The first and second connecting portions each take the form of a ring (46, 48) for receiving a respective one of the first and second connecting pins (20, 22);
The first and second connection rings (46, 48) are concentric with each other;
Electrical connector (32).   The non-conductive overmold (38) extends beyond the ends (46, 48) of the first and second conductive elements to define additional openings for receiving the first connection means; The electrical connector (32) according to claim 1.   The first opening (44) is arranged to receive the second connecting means in the form of first and second terminals of a standard electrical connector for the power supply. The electrical connector (32) according to 2.   The non-conductive overmold (38) is provided with means (56, 58) that allow alignment of the electrical connector (32) within the injector assembly (10). The electrical connector (32) of any one of -3.   Electricity according to any one of the preceding claims, wherein each end face of the conductive element (34, 36) is configured to abut against a contact surface (60, 62) of the actuator (18). Connector (32).   At least one of the conductive elements (34, 36) has an elastically compressible portion (64) formed to allow axial compression of the conductive element (34, 36); The electrical connector (32) according to claim 5.   The portion of the non-conductive overmold (38) that covers the elastically compressible portion (64) of the conductive element (34, 36) is formed relatively thin to increase flexibility. The electrical connector (32) of claim 6.   The electrical connector (32) according to claim 6 or 7, wherein each of the conductive elements (34, 36) is individually covered with a layer of electrically insulating material. An intermediate electrical connector (72);
The intermediate electrical connector (72) connects directly to the actuator (18) in use,
The electrical connector (32) according to any one of the preceding claims, wherein the first and second conductive elements (34, 36) are arranged to connect to the intermediate electrical connector (72). .   Each of the first and second conductive elements (34, 36) is formed having an upper portion (52) and a lower portion (54), the upper portion (52) being substantially perpendicular from the lower portion (54). The electrical connector (32) according to any one of the preceding claims, extending in a direction away from the electrical connector. An injector assembly (10) and the electrical connector (32) according to any one of claims 1 to 10,
A fuel injector (12) defining an injector hole (16) for receiving said injector assembly (10);   The non-conductive overmold (38) is arranged to be press fit in the injector hole (16) to hold the electrical connector (32) in the injector hole (16). The fuel injector (12) of claim 11, provided with a bush (40).

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