This application is based on and claims priority under 35 USC 119 from Japanese Patent Application No. 2022-144778 filed on Sep. 12, 2022, the contents of which are incorporated herein by reference.
The present disclosure relates to a connector device.
Various types of electronic components are disposed at various portions of a vehicle. Electronic control units (ECUs) mounted on portions of a vehicle are required to control various electronic components to be controlled, that is, on and off of loads, magnitude of output and the like, with switch circuits.
For example, in a configuration shown in FIG. 2 of JP2012-236472A, an output circuit including four semiconductor switch elements Q1H, Q1L, Q2H, and Q2L is used to bidirectionally control a current flowing through an electric motor 20 that is a load. An ECU including such an output circuit (switch circuit) is generally connected to a load via a wire harness including a predetermined connector.
However, switch circuits provided in ECUs are required to comply with types and specifications of loads. For example, when controlling an electric motor requiring bidirectional current control, four switch elements are necessary for one load, as in the output circuit 40 in JP2012-236472A. On the other hand, when controlling loads such as an electric motor, a lamp, and a heater that do not require switching of a driving direction, each of the loads can be controlled by one switch alone.
In addition, a switch for applying a high voltage to a positive terminal of a load may be necessary, or a switch for applying a low voltage to a negative terminal of a load may be necessary, depending on a type and a specification of a load. Accordingly, circuit configurations of ECUs are designed to change in various ways in accordance with differences in location where the ECUs are disposed, differences in specification between vehicles and the like.
On the other hand, it is desirable that the configurations of the ECUs be commonized as much as possible regardless of differences in type, grade and the like between vehicles. Such commonization of the circuit configurations contributes to reduction in ECU part numbers, reduction in manufacturing costs of ECUs, commonization of attachment work and the like.
When an ECU that can be commonly used in vehicles of various specifications is designed, however, a switch circuit that can cope with specifications of all types of loads is required. Accordingly, the number of components to be installed increases compared to a minimum number of components required in design.
For example, four switch elements are required to be installed for one load as in the output circuit 40 in JP2012-236472A. On the other hand, only one or two of the four switch elements may be used, depending on a type of a load actually connected to the output of an ECU. In this case, the remaining two or three switching elements of the four switching elements are uselessly attached components that are not used at all. Since such uselessly attached components are wasted, an increase in the number of components leads to an increase in the cost of the ECU.
The present disclosure is made in view of the above circumstance, and an object of the present disclosure is to provide a connector device that can reduce waste components that are uselessly attached when circuit configurations are commonized in electronic control units or the like in a vehicle.
A connector device has a constitution in a connector in which a plurality of terminals protrude into a connector opening. The plurality of terminals are respectively provided with a plurality of switches that have independent states of supplying power to the terminals and are switchable in between. A plurality of conductor plates are provided in the connector opening in an attachable and detachable state, and are each configured to electrically connect at least two of the plurality of terminals. The plurality of conductor plates are coupled by an insulating member.
The present disclosure is briefly described above. Details of the present disclosure can be further clarified by reading modes for carrying out the disclosure (hereinafter referred to as “embodiments”) described below with reference to the accompanying drawings.
A specific embodiment of the present disclosure will be described below with reference to the drawings.
As shown in
The metal terminals 13a to 13d are arranged in parallel to each other, and protrude in an elongated pin shape into the connector opening 12 in a direction of an arrow A1 shown in
The connector 10 according to the present embodiment further includes the joint plate shown in
As shown in
The copper plate 21 has two through holes 21a, 21b through which the metal terminals 13a, 13b can be inserted, respectively. The through holes 21a, 21b have shapes and sizes that are the same as outer shapes of the metal terminals 13a, 13b. Similarly, the copper plate 22 has two through holes 22a, 22b through which the metal terminals 13c, 13d can be inserted, respectively. The through holes 22a, 22b have shapes and sizes that are the same as outer shapes of the metal terminals 13c, 13d.
As shown in
The copper plate 21 and the insulating member 23 are coupled by aligning and fitting the concave portion 21c and the convex portion 23a as well as the concave portion 21d and the convex portion 23b, respectively. The copper plate 22 and the insulating member 23 are coupled by fitting the concave portion 23c and the convex portion 22c as well as the concave portion 23d and the convex portion 22d, respectively. The joint plate 20, in which the copper plates 21, 22 and the insulating member 23 are coupled and integrated, is inserted and installed into the connector opening 12 of the connector housing 11 as shown in
When the joint plate 20 is installed to the connector housing 11, the metal terminals 13a to 13d and the joint plate 20 are coupled inside the connector housing 11 as shown in
The copper plates 21, 22 and the metal terminals 13a to 13d are formed of a conductor that has high conductivity, and thus the copper plate 21 and the metal terminal 13a are electrically connected, and the copper plate 21 and the metal terminal 13b are electrically connected. Further, the copper plate 22 and the metal terminal 13c are electrically connected, and the copper plate 22 and the metal terminal 13d are electrically connected.
Accordingly, electric circuits of the two metal terminals 13a, 13b are electrically connected (short-circuited) through the copper plate 21. Similarly, electric circuits of the two metal terminals 13c, 13d are electrically connected through the other copper plate 22. Since the insulating member 23 is interposed between the two copper plates 21, 22, the electric circuits of the metal terminals 13a, 13b are electrically insulated from the electric circuits of the metal terminals 13c, 13d.
The copper plates 21, 22 are provided with, at portions 20a in the vicinity of peripheral walls of the through holes 21a, 21b, 22a, and 22b, elastic members such as metal springs to maintain a good contact state of contact points with the metal terminals 13a to 13d. The contact state between the copper plates 21, 22 and the metal terminals 13a to 13d may also be maintained by a press-fitting structure or the like.
Even when the joint plate 20 is installed to the connector opening 12 of the connector housing 11, top ends of the metal terminals 13a to 13d protrude further upward of the joint plate 20. Accordingly, a counterpart female connector (not shown) can be fitted and coupled to the connector opening 12 of the connector 10 after the joint plate 20 is installed to the connector housing 11. Electronic components of various loads can be connected to the female connector through a wire harness.
<Configuration of Electronic Control Unit Using Connector Device>
The electronic control unit 100A includes four independent semiconductor switch elements Q1, Q2, Q3, and Q4, and a control unit 35. The two semiconductor switch elements Q1, Q3 constitute Hi side output circuits 31, 33, respectively, and the remaining two semiconductor switch elements Q2, Q4 constitute Lo side output circuits 32, 34, respectively.
The Hi side output circuit 31 can supply a high voltage to an output side when the semiconductor switch element Q1 is conducted. The Lo side output circuit 32 can supply a low voltage to an output side when the semiconductor switch element Q2 is conducted. The Hi side output circuit 33 can supply a high voltage to an output side when the semiconductor switch element Q3 is conducted. The Lo side output circuit 34 can supply a low voltage to an output side when the semiconductor switch element Q4 is conducted.
In the electronic control unit 100A, outputs of the Hi side output circuits 31, 33 and the Lo side output circuits 32, 34 are connected to the connector 10. The output of the Hi side output circuit 31 is connected to the metal terminal 13a of the connector 10, the output of the Lo side output circuit 32 is connected to the metal terminal 13b of the connector 10, the output of the Hi side output circuit 33 is connected to the metal terminal 13c of the connector 10, and the output of the Lo side output circuit 34 is connected to the metal terminal 13d of the connector 10.
The joint plate 20 is installed to the connector 10. Accordingly, the metal terminals 13a, 13b of the connector 10 are electrically connected by the copper plate 21, and the metal terminals 13c, 13d are electrically connected by the copper plate 22.
The load L1 is connected to the connector 10 through a predetermined wire harness. The load L1 has a positive terminal and a negative terminal connected to the metal terminals 13a, 13d of the connector 10, respectively. The positive terminal of the load L1 is also connected to the metal terminal 13b through the copper plate 21, and the negative terminal of the load L1 is also connected to the metal terminal 13c through the copper plate 22.
When the control unit 35 controls the semiconductor switch elements Q1, Q2, Q3, and Q4 to be in a conducted, non-conducted, non-conducted, and conducted state, respectively, a current flows through the load L1 in a forward direction. When the control unit 35 controls the semiconductor switch elements Q1, Q2, Q3, and Q4 to be in a non-conducted, conducted, conducted, and non-conducted state, a current flows through the load L1 in a reverse direction.
On the other hand, the electronic control unit 100B shown in
Similarly to the electronic control unit 100A of
However, in the electronic control unit 100B of
In the electronic control unit 100B shown in
The control unit 35 can apply a high voltage to a terminal of the load L4 and drive the load L4 by controlling the semiconductor switching element Q3 to a conducted state. The control unit 35 can apply a low voltage to a terminal of the load L5 and drive the load L5 by controlling the semiconductor switch element Q4 to a conducted state.
That is, by connecting the electric circuits as in the electronic control unit 100A of
<Configuration of Electronic Control Unit Using General Connector>
In the electronic control unit 100C shown in
On the other hand, the electronic control unit 100D shown in
Here, the load L2 is required to be driven by application of a high voltage, and thus the electronic control unit 100D connects the load L2 to an output side of the semiconductor switch element Q1 through the connector 50. The load L3 is required to be driven by application of a low voltage, and thus the electronic control unit 100D connects the load L3 to an output side of the semiconductor switch element Q4 through the connector 50.
In the configurations of
As described above, the connector 10 according to the present embodiment can use a circuit unit having a common internal circuit configuration when connecting loads of different types and specifications to an output side as in the electronic control units 100A, 100B of
The present disclosure is not limited to the above-described embodiment, and can be appropriately modified, improved and the like. In addition, materials, shapes, sizes, numbers, arrangement positions and the like of components in the above-described embodiment are freely selected and are not limited as long as the present disclosure can be implemented.
For example, in the joint plate 20 installed to the connector 10 shown in
Here, features of the connector device according to the embodiment of the present disclosure described above are briefly summarized and listed below.
According to an aspect of the present disclosure, a connector device has a constitution (joint plate 20) in a connector (10) in which a plurality of terminals (metal terminals 13a to 13d) protrude into a connector opening (12). The plurality of terminals are respectively provided with a plurality of switches (semiconductor switch elements Q1 to Q4) that have independent states of supplying power to the terminals and are switchable in between. A plurality of conductor plates (copper plates 21, 22) are provided in the connector opening in an attachable and detachable state, and are each configured to electrically connect at least two of the plurality of terminals. The plurality of conductor plates (copper plates 21, 22) are coupled by an insulating member (23).
According to the connector device having the above configuration, presence and absence of the electrical connection between the plurality of terminals can be switched by attaching and detaching the conductor plates to and from the connector opening. Accordingly, it is possible to perform control corresponding to differences in specification between loads connected downstream of the connector while maintaining a common configuration of an upstream electric circuit (ECU or the like) including the plurality of switches. For this reason, components (switches or the like) installed in the ECU having a common configuration can be easily prevented from being uselessly attached.
According to an aspect of the present aspect, an area of the plurality of conductor plates and the insulating member is substantially the same size as an area of the connector opening (12) (see
According to the connector device having the above configuration, the plurality of conductor plates and the insulating member coupled to each other can be easily and firmly fixed to the connector opening by commonizing the areas.
According to an aspect of the present disclosure, the plurality of switches include a first switch (semiconductor switch element Q1) to output a high-level voltage to a first terminal (metal terminal 13a), and a second switch (semiconductor switch element Q2) to output a low-level voltage to a second terminal (metal terminal 13b). The conductor plates constitute a joint member (joint plate 20) that electrically connects the first terminal and the second terminal in a state of being installed in the connector opening.
According to the connector device having the above configuration, a load requiring the high-level voltage can be driven using the output of the first switch, and a load requiring the low-level voltage can be driven using the output of the second switch. Further, by installing the joint member to the connector opening, the first switch and the second switch can be combined, and a current can flow bidirectionally through a load requiring switching of a driving direction.
According to an aspect of the present disclosure, the plurality of switches include a first switch (semiconductor switch element Q1) to output a high-level voltage to a first terminal (metal terminal 13a), a second switch (semiconductor switch element Q2) to output a low-level voltage to a second terminal (metal terminal 13b), a third switch (semiconductor switch element Q3) to output a high-level voltage to a third terminal (metal terminal 13c), and a fourth switch (semiconductor switch element Q4) to output a low-level voltage to a fourth terminal (metal terminal 13d). The conductor plates include, in a state of being installed to the connector opening, a first joint member (copper plate 21) that electrically connects the first terminal and the second terminal, a second joint member (copper plate 22) that electrically connects the third terminal and the fourth terminal, and the insulating member (23) that physically couples the first joint member and the second joint member in a state in which the first joint member and the second joint member are electrically insulated.
According to the connector device having the above configuration, an H-bridge circuit as shown in
According to an aspect of the present disclosure, the plurality of switches include a first switch to output a high-level voltage to a first terminal, a second switch to output a low-level voltage to a second terminal, a third switch to output a high-level voltage to a third terminal, and a fourth switch to output a low-level voltage to a fourth terminal. The conductor plates include, in a state of being installed to the connector opening, a first joint member that electrically connects the first terminal and the second terminal, a second joint member that electrically connects the third terminal and the fourth terminal, and the insulating member that physically couples the first joint member and the second joint member in a state in which the first joint member and the second joint member are electrically insulated. The first joint member (copper plate 21) has a first through hole (through hole 21a) and a second through hole (through hole 21b) through which the first terminal and the second terminal are inserted, respectively. The second joint member (copper plate 22) has a third through hole (through hole 22a) and a fourth through hole (through hole 22b) through which the third terminal and the fourth terminal are inserted, respectively. The first joint member has a first concave portion or a first convex portion (concave portion 21c, concave portion 21d) that are fitted to the insulating member in a direction intersecting an insertion direction of the terminals. The second joint member has a second concave portion or a second convex portion (convex portion 22c, convex portion 22d) that are fitted to the insulating member in the direction intersecting with the insertion direction of the terminals.
According to the connector device having the above configuration, it is possible to implement a conductor plate having an appropriate configuration necessary for constituting an H-bridge circuit with a combination of the first switch, the second switch, the third switch, and the fourth switch. The first joint member and the insulating member can be coupled, and the second joint member and the insulating member can be coupled.
Number | Date | Country | Kind |
---|---|---|---|
2022-144778 | Sep 2022 | JP | national |