JP4697187B2 - High voltage equipment module - Google Patents

Description

  The present invention relates to a high voltage device module in which a pair of main relays incorporated in a part of a high voltage circuit are attached to a common housing.

  For example, a hybrid vehicle or the like is equipped with a battery as a DC high-voltage power supply and a power converter for driving and controlling a motor by converting the DC power of the battery into AC power. The battery and the power converter are connected via a high voltage device module having a main relay and the like. Thus, for example, when an abnormality occurs in the power conversion device, the battery and the power conversion device are electrically disconnected to prevent the overcurrent from continuing to flow into the high voltage circuit, or from the battery to the power conversion device at startup. This prevents a large current from rushing in.

The main relay in such a high voltage device module has, for example, a fixed contact fixed to the main body and a movable contact arranged to be movable with respect to the fixed contact. And a conduction | electrical_connection state and a interruption | blocking state can be formed by making this movable contact contact or separate from the said fixed contact.
When the power converter is abnormal, the pair of movable contacts are kept away from the fixed contacts (interrupted state).

  However, for example, when the vibration of an automobile equipped with the high-voltage device module is transmitted to the movable contact, the movable contact vibrates, and in some cases, it may contact the fixed contact. At this time, if the movable contact and the fixed contact come into contact with each other in both the pair of main relays, a high voltage current may flow through the high voltage circuit.

  In particular, when a float-type main relay as shown in Patent Document 1 is used, the above-described vibration may cause the movable contact to easily come into contact with the fixed contact. The float structure supports the movable contact by a balance between the biasing means that biases the movable contact away from the fixed contact and the biasing means that biases the movable contact closer to the fixed contact in the interrupted state. (See FIG. 4).

  Further, for example, in the case of a hybrid vehicle, when an abnormality occurs in the high voltage circuit, the high voltage circuit is cut off by turning off the main relay, and the engine (internal combustion engine) can run alone. is there. In such a case, it is fully conceivable that engine vibrations, vibrations from the road surface during traveling, etc. are transmitted to the high-voltage equipment module and the above problems occur.

JP-A-2005-347116

  The present invention has been made in view of the above-described conventional problems, and prevents a pair of main relays from being simultaneously turned on by vibration applied from the outside when it is necessary to maintain a cut-off state. Is to provide.

According to a first aspect of the present invention, there is provided a vehicle high-powered vehicle in which a pair of main relays that are incorporated in a part of a high-voltage circuit and are respectively connected to a positive electrode side and a negative electrode side of a high-voltage power source are attached to a common housing. A voltage device module,
The main relay has a fixed contact fixed to the main body and a movable contact disposed so as to be movable with respect to the fixed contact, and the movable contact is brought into contact with or separated from the fixed contact. By doing so, it is configured to be able to form a conduction state and a cutoff state,
The pair of main relays are in a high voltage device module, wherein the movable contact points are arranged so that an angle between the movable contacts is an acute angle of 45 ° or more (Claim 1).

Next, the effects of the present invention will be described.
The problem in the high voltage circuit is that, as described above, when it is necessary to maintain a cut-off state, the movable contact and the fixed contact are simultaneously in contact with both of the pair of main relays in the high voltage device module. The high voltage current may flow in the high voltage circuit. Therefore, it is not a problem that the movable contact and the fixed contact come into contact with each other only in one of the pair of main relays.

  Therefore, as a result of earnest research on the cause of contact between the movable contact and the fixed contact at the same time in both of the pair of main relays, one of the causes is that in the conventional high voltage device module, It has been found that the movable directions of the movable contacts in the pair of main relays are parallel to each other (see a comparative example described later). That is, the vibration of a vehicle or the like equipped with a high voltage device module is transmitted to the main relay, and the movable contact may vibrate and come into contact with the fixed contact. Here, if the movable directions of the movable contacts in the pair of main relays are parallel to each other, when the vibration in the movable direction is applied to the high voltage device module, the movable contacts of the pair of main relays vibrate synchronously. At the same time, there is a risk of contact with the fixed contact.

  Therefore, in the high voltage device module according to the present invention, the pair of main relays are arranged so that the movable directions of the movable contacts are not parallel to each other. Thereby, even if a vibration is transmitted to a high voltage apparatus module, it can suppress that the movable contact of both of a pair of main relays vibrates toward a fixed contact by the vibration. Therefore, it is possible to prevent the pair of main relays from being turned on simultaneously when it is necessary to maintain a cut-off state.

  As described above, according to the present invention, it is possible to provide a high voltage device module that prevents a pair of main relays from being simultaneously turned on by externally applied vibration when it is necessary to maintain a cut-off state.

A second invention is a high-voltage device module in which a pair of main relays, which are incorporated in a part of a high-voltage circuit and connected respectively to the positive electrode side and the negative electrode side of a high-voltage power source, are attached to a common housing. There,
The main relay has a fixed contact fixed to the main body and a movable contact disposed so as to be movable with respect to the fixed contact, and the movable contact is brought into contact with or separated from the fixed contact. By doing so, it is configured to be able to form a conduction state and a cutoff state,
The casing is fixed in contact with the vibration source at a plurality of locations, and has a first mounting portion and a second mounting portion for mounting one and the other of the pair of main relays, respectively. ,
A step is provided between the first mounting portion and the second mounting portion,
The contact surface between the first mounting portion and the main relay mounted on the first mounting portion, and the contact surface between the second mounting portion and the main relay mounted on the second mounting portion are as described above. distance in the normal direction of the contact surface from the contact surface of the vibration source and the housing is, in the high voltage equipment module, characterized in that are different from each other (claim 2).

Next, the effects of the present invention will be described.
In the high-voltage device module, the pair of main relays are arranged so that the positions of the contact surfaces with the housing are different from each other on the basis of the contact surface between the vibration source and the housing. Therefore, the vibrations transmitted from the vibration source to the pair of main relays through the housing are out of phase with each other. Therefore, the pair of main relays vibrate at different phases (without synchronization).
As a result, even if the pair of main relays are arranged so that the movable direction of the movable contacts are parallel, the pair of main relays can be in a conductive state at the same time when it is necessary to maintain a disconnected state. Can be prevented.

  As described above, according to the present invention, it is possible to provide a high voltage device module that prevents a pair of main relays from being simultaneously turned on by externally applied vibration when it is necessary to maintain a cut-off state.

In the first invention (Invention 1) and the second invention (Invention 2 ), the high-voltage device module can be mounted with other electronic components together with the main relay.
In the first invention (invention 1), the pair of main relays are arranged such that the movable contacts move at an angle of 45 ° or more.
Thereby, when it is necessary to maintain the interruption | blocking state, it can prevent more effectively that said pair of main relay becomes a conduction | electrical_connection state simultaneously. If the angle between the movable contact directions of the pair of main relays is less than 45 °, it may be difficult to reliably prevent the pair of main relays from being turned on at the same time.

Thus, the pair of main relay, the movable direction of the variable dynamic contact is arranged so as to be the angle.

Next, in the first invention (invention 1) or the second invention (invention 2 ), the high-voltage equipment module includes a power converter, a high-voltage power supply for supplying DC power to the power converter, It is assumed that they are electrically connected to each other (Claim 3 ).
In this case, the high-voltage circuit can be reliably kept in a cut-off state when there is an abnormality such as a failure of the semiconductor module in the power conversion device.

The main relay includes an electromagnetic drive unit that moves the movable contact by electromagnetic force generated by energization, first urging means that urges the movable contact in a direction away from the fixed contact, and the movable contact with the movable contact. Second urging means for urging in a direction approaching the fixed contact, and in the interrupted state, the movable contact is supported in a float state by the first urging means and the second urging means. (Claim 4 ).
In this case, in the interrupted state, the movable contact is likely to vibrate due to vibration applied from the outside, and the problem of contact with the fixed contact tends to occur. Therefore, by applying the present invention to a high voltage device module using the electromagnetic relay having the above configuration as a main relay, “when it is necessary to keep a cut-off state, a pair of main relays are caused by vibration applied from the outside. At the same time, it is possible to effectively exhibit the effect of the present invention, which is to prevent a conductive state from being achieved.

The pair of main relays preferably have the same structure as each other (claim 5 ).
In this case, the assembly workability of the high voltage device module can be improved and the manufacturing cost can be reduced. Thus, when using a pair of main relays which have the same structure, it is possible that these movable contacts are easy to vibrate synchronously. Therefore, by applying the present invention to such a high voltage device module, it is possible to prevent the movable contacts in the pair of main relays from vibrating synchronously. It is possible to effectively exhibit the effect of the present invention that prevents the main relays from being simultaneously turned on.

Each terminal of the main relay is welded to a high voltage bus bar constituting a part of the high voltage circuit and a low voltage bus bar through which a low voltage current for driving the main relay flows. (Claim 6 ).
In this case, contact resistance does not occur at the junction between each terminal of the main relay and the high voltage bus bar and the low voltage bus bar, and heat generation at the junction can be suppressed.

Moreover, it is preferable that the connection terminal part of the said high voltage bus bar and the said low voltage bus bar is welded with the terminal of the said main relay in the surface opposite to the side by which the main body of the said main relay is distribute | arranged in the said housing | casing. (Claim 7 ).
In this case, welding of the connection terminal portions of the high voltage bus bar and the low voltage bus bar and the terminal of the main relay can be easily performed. That is, since the connection terminal portions of the high voltage bus bar and the low voltage bus bar are arranged on a common surface in the casing, welding can be performed from the same direction, and workability is improved. Moreover, since these connection terminal portions are arranged on the surface of the casing on the side where the main relay main body is not arranged, the main relay main body does not interfere with the welding operation.

Moreover, it is preferable that the connection terminal part of the said high voltage bus bar and the said low voltage bus bar and the terminal of the said main relay are connected by laser welding (Claim 8 ).
In this case, since heat generation during welding can be reduced, the heat load on the main relay can be suppressed.

( Reference example )
A high voltage device module according to a reference example of the present invention will be described with reference to FIGS.
As shown in FIGS. 1, 2, and 5, the high voltage device module 1 of this example is incorporated in a part of the high voltage circuit 10 and connected to the positive side and the negative side of the battery 6 as a high voltage power source. The paired main relays 2 are attached to a common housing 5.
As shown in FIGS. 1 and 5, the main relay 2 has a fixed contact 21 fixed to the main body, and a movable contact 22 arranged to be movable with respect to the fixed contact 21. And the main relay 2 is comprised so that a conduction | electrical_connection state and a interruption | blocking state can be formed by making the movable contact 22 contact or separate from the fixed contact 21. FIG.

  The pair of main relays 2 are arranged such that the movable direction K of the movable contact 22 is not parallel to each other. In this example, as shown in FIG. 1, the pair of main relays 2 are arranged such that the movable directions K of the movable contacts 22 are orthogonal to each other.

Moreover, as shown in FIG. 5, the high voltage apparatus module 1 is electrically connected between the power converter device 3 and the battery 6 which supplies DC power to a power converter device (inverter 7). The inverter 7 supplies the generated AC power to a rotating electric machine (not shown) to drive and control the rotating electric machine. The supply voltage of the battery 6 is a high voltage of, for example, 100V or higher.
And the high voltage apparatus module 1 has the 1st main relay 201 and the 2nd main relay 202 as a pair of main relay 2 connected to the positive electrode side and the negative electrode side of the battery 6, respectively. The first main relay 201 is connected to the positive power line 71 of the inverter 7, and the second main relay 202 is connected to the negative power line 72 of the inverter 7.

Further, the high voltage device module 1 includes a precharge relay 13 connected in parallel to the first main relay 201. The precharge relay 13 is connected in series with the register 11, and a series circuit of the precharge relay 13 and the register 11 is connected in parallel with the first main relay 201.
The second main relay 202 is connected to the negative electrode of the battery 6 via the current sensor 12 connected in series.

The main relay 2 and the precharge relay 13 are operated by a drive signal from a control unit (ECU: electronic control unit) 101.
Further, the inverter 7 has a capacitor 73 connected between the positive power line 71 and the negative power line 72.

  As shown in FIGS. 1, 2, and 6, the high-voltage device module 1 has a pair of main relays 2, a precharge relay 13, and a resistor 11 mounted on a housing 5. And this housing | casing 5 is being fixed to the body of the vehicle body, for example. As shown in FIG. 6, the terminals 25 and 131 of the main relay 2 and the precharge relay 13 are inserted into the through holes 53 provided in the housing 5, and the side of the housing 5 on which the main body 20 of the main relay 2 is arranged. On the opposite side of the surface, the high voltage bus bar 3 and the low voltage bus bar 4 are laser welded and electrically connected to the battery 6, the inverter 7 or the control unit 101.

  The high voltage bus bar 3 is a bus bar constituting a part of the high voltage circuit, and the low voltage bus bar 4 is a bus bar through which a low voltage current for driving the main relay 2 and the precharge relay 13 flows. Therefore, the high voltage bus bar 3 is welded to the high voltage side terminal 25 (131) electrically connected to the fixed contact 21 in the main relay 2 or the precharge relay 13 described later, and the low voltage bus bar 4 is described later. The terminal 25 (131) on the low voltage side electrically connected to the electromagnetic drive unit 23 in the main relay 2 or the precharge relay 13 is welded.

7A and 7B, the connection terminal portions 31 and 41 of the high voltage bus bar 3 and the low voltage bus bar 4, and the terminal 25 of the main relay 2 (or the terminal 131 of the precharge relay 13). Is a scrambled state in which the tip surfaces of each other are joined in the same direction, and laser welding is performed on both tip surfaces. 7A and 7B, reference numeral 19 represents a welded portion.
The terminal 131 of the precharge relay 13 is also laser-welded to the high voltage bus bar 3 and the low voltage bus bar 4 in the same state. The terminals of other electronic components in the high voltage device module 1 such as the register 11 are also welded to the high voltage bus bar 3 in the same state (not shown).

As shown in FIGS. 3 and 4, the main relay 2 includes an electromagnetic drive unit 23 that moves the movable contact 22 by electromagnetic force generated by energization, and a first bias that biases the movable contact 22 in a direction away from the fixed contact 21. Means 241 and second urging means 242 for urging the movable contact 22 in a direction approaching the fixed contact 21.
And in the interruption | blocking state (FIG. 4), the movable contact 22 is supported by the 1st biasing means 241 and the 2nd biasing means 242 in the float state.

The electromagnetic drive unit 23 includes a drive coil unit 231, a fixed core 232 and a movable plunger 233 arranged inside the drive coil unit 231. Between the fixed core 232 and the movable plunger 233, the first urging means 241 that urges the movable plunger 233 in a direction away from the fixed core 232 is interposed.
In addition, a pair of movable contacts 22 is provided at both ends of the movable holder 221, and each movable contact 22 is disposed to face the pair of fixed contacts 21. The movable holder 221 is urged by the second urging means 242 in a direction in which the movable contact 22 abuts on the fixed contact 21.

When the drive coil portion 231 is not energized, as shown in FIG. 4, the movable plunger 233 is pushed away from the fixed core 232 by the first urging means 241 to push the movable holder 221. As a result, the movable contact 22 is separated from the fixed contact 21, and a cut-off state is formed. At this time, the movable holder 221 and the movable contact 22 fixed thereto are in a float state supported by the first urging means 241 and the second urging means 242.
On the other hand, when the drive coil portion 231 is energized, the movable plunger 233 is attracted to the fixed core 232 side by the electromagnetic force generated in the drive coil portion 231 as shown in FIG. Thereby, the movable contact 22 contacts the fixed contact 21, and a conduction state is formed.

The pair of main relays 2 (the first main relay 201 and the second main relay 202) in the high voltage device module 1 of the present example have the above-described configuration and have the same structure.
On the other hand, the precharge relay 13 is smaller than the main relay 2, and the structure thereof may be different from that of the main relay 2.

  As shown in FIG. 5, the high voltage device module 1 of this example is used by being incorporated in a high voltage circuit 10 for driving in a hybrid vehicle, for example. And when the signal at the time of starting of the automobile is received, the electromagnetic relay 2 is driven by the drive signal from the control unit 101, and the capacitor 73 of the inverter 7 is precharged by appropriately switching on and off, The safety of the high voltage circuit 10 is ensured by shutting off the power supply when an abnormality occurs in the high voltage circuit 10 such as a failure of the inverter 7.

For example, at the time of precharging, the high voltage device module 1 operates as follows.
First, in response to a signal at the time of starting the automobile, the second main relay 202 and the precharge relay 13 are turned on by a drive signal from the control unit 101. As a result, the high voltage current of the battery 6 flows to the capacitor 73 of the inverter 7 via the precharge relay 13 and the resistor 11, and the capacitor 73 is charged. At this time, since the high voltage current flows to the capacitor 73 via the resistor 11, it is possible to prevent a large current from flowing when the current enters.
In this way, the capacitor 73 is gradually charged while preventing a large current from entering.

Next, when the charging of the capacitor 73 is substantially completed, the precharge relay 13 is turned off. In addition, the 2nd main relay 202 is maintaining the connection state.
After that, the first main relay 201 is turned on to maintain a constant conduction state for power distribution between the battery 6 and the inverter 7.

  Further, for example, when an abnormality occurs in the inverter 7 due to a failure of a switching element or the like in the inverter 7, the first main relay 201 and the second main relay 202 are turned off, and the battery 6 and the inverter are turned off. 7 is electrically cut off. Thereby, it is possible to prevent a high voltage current from continuing to flow through the high voltage circuit 10.

Next, the function and effect of this example will be described.
As described above, the problem in the high voltage circuit 10 is that the movable contact 22 and the fixed contact 21 are simultaneously applied to both the pair of main relays 2 in the high voltage device module 1 when it is necessary to maintain the interrupted state. And a high voltage current may flow in the high voltage circuit 10. Therefore, it is not a problem that the movable contact 22 and the fixed contact 21 are in contact with each other only in one of the pair of main relays 2.

  Therefore, in the high voltage device module 1 of this example, the pair of main relays 2 are arranged such that the movable direction K of the movable contact 22 is not parallel to each other. Thereby, even if a vibration is transmitted to the high voltage apparatus module 1, it can suppress that the movable contact 22 of both of a pair of main relays 2 vibrates toward the fixed contact 21 by the vibration. Therefore, it is possible to prevent the pair of main relays 2 from being in a conductive state at the same time when it is necessary to maintain a cut-off state.

  Further, since the high-voltage device module 1 is electrically connected between the inverter 7 and the battery 6 that supplies DC power to the inverter 7, the inverter 7 can be operated in an abnormal state such as a failure of a semiconductor module. The high voltage circuit 10 can be reliably kept in the cut-off state.

  In addition, the main relay 2 is an electromagnetic relay in which the movable contact 22 is supported in a float state by the first urging means 241 and the second urging means 242 in the interrupted state. The movable contact 22 is likely to vibrate and is likely to come into contact with the fixed contact 21. Therefore, by applying the present invention to the high voltage device module 1 using the electromagnetic relay having the above-described configuration as the main relay 2, “when it is necessary to maintain a cut-off state, a pair of mains are caused by vibration applied from the outside. The effect of the present invention of “preventing the relays 2 from being simultaneously turned on” can be effectively exhibited.

  Moreover, since a pair of main relay 2 has the mutually same structure, while being able to improve the assembly workability | operativity of the high voltage apparatus module 1, manufacturing cost can be reduced. In addition, when using a pair of main relays 2 having the same structure as described above, it is conceivable that these movable contacts 22 are likely to vibrate synchronously. Therefore, by applying the present invention to such a high voltage device module 1, it is possible to prevent the movable contact 22 in the pair of main relays 2 from vibrating in a synchronized manner. The action and effect of the present invention, which prevents the pair of main relays 2 from being simultaneously turned on by vibration, can be effectively exhibited.

  As described above, according to this example, it is possible to provide a high-voltage device module that prevents a pair of main relays from being simultaneously turned on by externally applied vibration when it is necessary to maintain a cut-off state.

( Example 1 )
This example is an example of the high-voltage device module 1 in which a pair of main relays 2 are arranged so that the movable direction K of the movable contact 22 forms an acute angle as shown in FIG.
That is, in the reference example , the angle formed by the movable direction K of the movable contact 22 of the pair of main relays 2 is a right angle, but in this example, the angle θ is an acute angle. In this case, the angle θ is preferably 45 ° or more.
Others are the same as the reference example .
Also in the case of this example, when it is necessary to maintain the cut-off state, it is possible to prevent the pair of main relays 2 from being simultaneously turned on by vibration applied from the outside.
In addition, it has the same effects as the reference example .

( Example 2 )
In this example, as shown in FIGS. 9 and 10, the pair of main relays 2 are connected to the housing 5 with reference to the contact surface 14 between the vehicle body 8 that is a vibration source and the housing 5 of the high-voltage device module 1. This is an example in which the positions of the contact surfaces 151 and 152 are different from each other.

The housing 5 is provided with a step between a first mounting portion 51 on which the first main relay 201 is mounted and a second mounting portion 52 on which the second main relay 202 is mounted. Thereby, the contact surface 151 of the main body part 20 of the first main relay 201 and the first mounting part 51 of the housing 5, and the main body part 20 of the second main relay 202 and the second mounting part 52 of the housing 5. And the contact surface 152 are arranged at different positions on the basis of the contact surface 14 between the body 8 and the housing 5. That is, as shown in FIG. 10, the distance H1 between the contact surface 14 and the contact surface 151 is different from the distance H2 between the contact surface 14 and the contact surface 152.
The housing 5 is fixed to the body 8 with bolts 54.
Others are the same as the reference example .

Next, the function and effect of this example will be described.
In the high voltage equipment module 1, the positions of the contact surfaces 151 and 152 of the pair of main relay 2 and the housing 5 are determined based on the contact surface 14 of the vehicle body 8 that is a vibration source and the housing 5. They are arranged differently. Therefore, the vibrations transmitted from the vibration source (body 8) to the pair of main relays 2 through the housing 5 are out of phase with each other. Therefore, the pair of main relays 2 vibrate at different phases (without synchronization).
Thereby, even if a pair of main relay 2 is arrange | positioned so that the movable direction K of the movable contact 22 may become parallel, a pair of main relay 2 is a conduction | electrical_connection state simultaneously when it needs to maintain a interruption | blocking state. Can be prevented.

As described above, also in the case of this example, when it is necessary to keep a cut-off state, it is possible to provide a high-voltage device module that prevents a pair of main relays 2 from being simultaneously turned on by externally applied vibration. it can.
In addition, it has the same effects as the reference example .

(Comparative example)
This example is an example of the high voltage device module 9 in which a pair of main relays 2 are arranged so that the movable direction K of the movable contact 22 is parallel to each other, as shown in FIGS.
The pair of main relays 2 match the positions of the contact surfaces 951 and 952 with the housing 5 on the basis of the contact surface 94 between the vehicle body 8 as a vibration source and the housing 5 of the high-voltage device module 9. I am letting. That is, the contact surface 951 between the first main relay 201 and the housing 5 and the contact surface 952 between the second main relay 202 and the housing are formed on the same plane.
Others are the same as the reference example .

  In the case of this example, since the movable direction K of the movable contact 22 in the pair of main relays 2 is parallel to each other, when vibration in the movable direction K is applied to the high voltage device module 9, The movable contact 22 of the main relay 2 vibrates in synchronization. Therefore, the movable contact 22 of the pair of main relays 2 may be in contact with the fixed contact 21 at the same time.

  The pair of main relays 2 match the positions of the contact surfaces 951 and 952 with the housing 5 on the basis of the contact surface 94 between the vehicle body 8 as a vibration source and the housing 5 of the high-voltage device module 9. I am letting. Therefore, the vibrations transmitted from the vibration source (body 8) to the pair of main relays 2 through the housing 5 are likely to have the same phase, and the pair of main relays 2 may vibrate in the same phase (synchronously). is there. Therefore, if the movable direction K of the movable contact 22 of the pair of main relays 2 is parallel, the pair of main relays 2 may be in a conductive state at the same time when it is necessary to maintain a disconnected state.

Plane explanatory drawing of the high voltage apparatus module in a reference example . Side surface explanatory drawing of the high voltage apparatus module in a reference example . Sectional drawing of the conduction state of the main relay in a reference example . Sectional drawing of the interruption | blocking state of the main relay in a reference example . Explanatory drawing of the high voltage circuit incorporating the high voltage apparatus module in a reference example . Sectional explanatory drawing of the high voltage apparatus module which shows the connection state of the terminal in a reference example . (A) Perspective view and (B) Cross-sectional view showing a welded state between a terminal of a main relay and a connection terminal portion of a high voltage bus bar (or low voltage bus bar) in a reference example . FIG. 3 is an explanatory plan view of a high voltage device module according to the first embodiment . Plane explanatory drawing of the high voltage apparatus module in Example 2. FIG. Side surface explanatory drawing of the high voltage apparatus module in Example 2. FIG. Plane explanatory drawing of the high voltage apparatus module in a comparative example. Side surface explanatory drawing of the high voltage apparatus module in a comparative example.

Explanation of symbols

1 High Voltage Device Module 2 Main Relay 21 Fixed Contact 22 Movable Contact 5 Case 6 Battery (High Voltage Power Supply)
7 Inverter (power converter)
K movable direction

Claims (8)

A high-voltage equipment module for a vehicle, which is built in a part of a high-voltage circuit and is attached to a common housing with a pair of main relays connected to the positive side and the negative side of the high-voltage power supply. ,
The main relay has a fixed contact fixed to the main body and a movable contact disposed so as to be movable with respect to the fixed contact, and the movable contact is brought into contact with or separated from the fixed contact. By doing so, it is configured to be able to form a conduction state and a cutoff state,
The pair of main relays is a high-voltage device module, wherein the movable contact points are arranged such that an angle between the movable contacts is an acute angle and 45 ° or more. A high-voltage device module that is built in a part of a high-voltage circuit, and is connected to a positive side and a negative side of a high-voltage power source, and a pair of main relays attached to a common housing,
The main relay has a fixed contact fixed to the main body and a movable contact disposed so as to be movable with respect to the fixed contact, and the movable contact is brought into contact with or separated from the fixed contact. By doing so, it is configured to be able to form a conduction state and a cutoff state,
The casing is fixed in contact with the vibration source at a plurality of locations, and has a first mounting portion and a second mounting portion for mounting one and the other of the pair of main relays, respectively. ,
A step is provided between the first mounting portion and the second mounting portion,
The contact surface between the first mounting portion and the main relay mounted on the first mounting portion, and the contact surface between the second mounting portion and the main relay mounted on the second mounting portion are as described above. A high-voltage apparatus module , wherein distances in a normal direction of the contact surface from a contact surface between the vibration source and the housing are different from each other . 3. The high voltage device module according to claim 1, wherein the high voltage device module is electrically connected between the power converter and a high voltage power source that supplies DC power to the power converter . 4. The main relay according to claim 1, wherein the main relay is configured to move the movable contact by an electromagnetic force generated by energization, and to bias the movable contact in a direction away from the fixed contact. Biasing means and second biasing means for biasing the movable contact in a direction approaching the fixed contact, and in the shut-off state, the movable contact includes the first biasing means and the second biasing means. A high-voltage equipment module, which is supported in a float state by an urging means . 5. The high voltage device module according to claim 1, wherein the pair of main relays have the same structure . 6. The terminal of the main relay according to claim 1 , wherein each terminal of the main relay includes a high voltage bus bar that forms a part of the high voltage circuit, and a low voltage current for driving the main relay. A high voltage equipment module , wherein the voltage bus bar is welded to each of the voltage bus bars . In Claim 6, the connection terminal part of the said high voltage bus bar and the said low voltage bus bar is welded with the terminal of the said main relay in the surface opposite to the side by which the main body of the said main relay is arrange | positioned in the said housing | casing. A high voltage equipment module characterized by that. 8. The high voltage device module according to claim 6, wherein the connection terminal portions of the high voltage bus bar and the low voltage bus bar and the terminals of the main relay are connected by laser welding .

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