Patent Publication Number: US-2022234530-A1

Title: Temperature management system with wire

Description:
TECHNICAL FIELD 
     The present disclosure relates to a temperature management system with a wire. 
     BACKGROUND 
     Patent Document 1 discloses a technique for routing and wrapping a hose on the outer circumference of a wire harness in a spiral manner. A hose for washer liquid is envisaged as the hose. 
     PRIOR ART DOCUMENT 
     Patent Document 
     Patent Document 1: JP 2007-211851 A 
     SUMMARY OF THE INVENTION 
     Problems to be Solved 
     Meanwhile, recent years has seen an increase in the number of high-voltage circuits in a battery electric vehicle (BEV), a plug-in hybrid electric vehicle (PHEV), or the like. In addition, as a result, a cooling hose is mounted in the vehicle in order to manage the temperatures of the high-voltage devices and the like. In most cases, a wire that is disposed around high-voltage devices has a large diameter in order to apply a high voltage. The cooling hose also has a large diameter in most cases in order to manage the temperature of the high-voltage devices and the like. Therefore, the vehicle space is suppressed by the wire and the cooling hose that are disposed around the high-voltage devices. 
     Therefore, it is desirable that a wire and a refrigerant pipe can be mounted in a compact form in a vehicle. 
     Therefore, an object of the present disclosure is to enable a wire and a refrigerant pipe to be mounted in a compact form in a vehicle. 
     Means to Solve the Problem 
     A temperature management system with a wire according to the present disclosure includes a refrigerant pipe through which a refrigerant for performing heat exchange in a heat exchange target device that is mounted in a vehicle passes and a wire at least a portion of which extends along at least a portion of the refrigerant pipe. 
     Effect of the Invention 
     According to the present disclosure, a wire and a refrigerant pipe are mounted in a compact form in a vehicle. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagram illustrating a temperature management system according to an embodiment of the present invention. 
         FIG. 2  is a schematic cross-sectional view showing a refrigerant pipe and wires. 
         FIG. 3  is a schematic cross-sectional view showing a refrigerant pipe and wires according to another example. 
         FIG. 4  is a schematic cross-sectional view showing a refrigerant pipe and a wire according to another example. 
         FIG. 5  is a schematic cross-sectional view showing a refrigerant pipe and wires according to another example. 
         FIG. 6  is a diagram illustrating a temperature management system according to a modification. 
         FIG. 7  is a diagram illustrating a temperature management system according to another modification. 
     
    
    
     DETAILED DESCRIPTION TO EXECUTE THE INVENTION 
     Description of Embodiments of the Present Disclosure 
     First, aspects of the present disclosure will be listed and described. 
     A temperature management system with a wire according to the present disclosure is as follows. 
     (1) A temperature management system with a wire that includes: a refrigerant pipe through which a refrigerant for performing heat exchange in a heat exchange target device that is mounted in a vehicle passes; and a wire at least a portion of which extends along at least a portion of the refrigerant pipe. In this case, at least a portion of the wire extends along at least a portion of the refrigerant pipe. Therefore, the wire and the refrigerant pipe are mounted in a compact form in a vehicle. 
     (2) The wire may be connected to the heat exchange target device. In this case, the wire is to be connected to the heat exchange target device whose temperature is managed using a refrigerant that passes through the refrigerant pipe. Therefore, a form in which at least a portion of the wire extends along at least a portion of the refrigerant pipe is made more compact. 
     (3) In the temperature management system with a wire, the wire may include a high-voltage wire. This allows the high-voltage wire to be effectively cooled by the refrigerant pipe. 
     (4) The temperature management system with a wire may include a refrigerant circuit that is routed through two or more of a heater, a high-voltage electric device, and a battery, and the refrigerant circuit may include the refrigerant pipe. Accordingly, the refrigerant circuit is routed through two or more of the heater, the high-voltage electric device, and the battery, and thus it is possible to reduce the number of components that constitute the refrigerant circuit. By disposing the wire along the refrigerant pipe that constitutes such a refrigerant circuit, the wire and the refrigerant pipe are mounted in a compact form in a vehicle. 
     (5) A wire holding portion that holds the wire may be formed integrally as one piece with the refrigerant pipe. Accordingly, the wire is held along the refrigerant pipe by the wire holding portion formed integrally as one piece with the refrigerant pipe. 
     (6) The temperature management system with a wire may further include an attachment member that includes a pipe attachment portion that is attached to the refrigerant pipe and a wire attachment portion that is attached to the wire. Accordingly, the wire is easily attached to the refrigerant pipe using the attachment member. 
     (7) The attachment member may include a vehicle fixing portion that is to be fixed to a vehicle. Accordingly, the wire and the refrigerant pipe are fixed to the vehicle using the attachment member. 
     (8) The temperature management system with a wire may further include a binding member that is wrapped around the wire and the refrigerant pipe. Accordingly, the wire is kept in a state of extending along the refrigerant pipe using the binding member. 
     Details of Embodiments of the Present Disclosure 
     Specific examples of a temperature management system with a wire according to the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications which fall within the scope of the claims and the meaning and scope of equivalents thereof. 
     First Embodiment 
     A temperature management system with a wire according to the first embodiment will be described below.  FIG. 1  is a diagram illustrating a temperature management system  50  with a wire incorporated in a vehicle  10 . 
     In the present embodiment, a vehicle  10  is a battery electric vehicle (BEV). Here, a BEV is a vehicle that includes a battery charged by an external power supply and travels using the energy stored in the battery. Here, a BEV means a vehicle that travels using only the energy stored in the battery as the power source. 
     This temperature management system  50  with a wire is suitable to be applied to not only a BEV but also a vehicle that travels in response to the driving of an electric motor. A high-voltage electric device is mounted in such a vehicle in order to drive the electric motor. The temperature management system  50  with a wire is effective at cooling such a high-voltage electric device and a high-voltage wire for supplying power to the high-voltage electric device. A hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), a fuel cell vehicle (FCV), and so forth are envisaged as the vehicle that travels in response to the driving of the electric motor. 
     Heat Exchange Target Device 
     An example of a heat exchange target device that is mounted in the vehicle  10  will be described. Here, a battery  20  and a charging unit  22  are mounted in the vehicle  10 . 
     The battery  20  stores power energy for the vehicle to travel. A nickel battery, a lithium-ion battery, or the like is used as the battery  20 . The battery  20  generates heat during charging and discharging. When the temperature of the battery  20  increases excessively, the charging/discharging properties decrease. In order to suppress an excessive increase in the temperature of the battery  20 , it is desirable for the battery  20  to be cooled. Note that the voltage supplied from the battery  20  is, for example, 400 to 800 V. 
     The charging unit  22  is connected to the battery  20 . The charging unit  22  is a unit that is supplied with power from the outside, and controls the charging of the battery  20 . The charging unit  22  is supplied with power of 100 to 1000 V, for example, from the outside, and controls the charging of the battery  20 . The charging unit  22  is also a unit that is likely to generate heat, and it is desirable for the charging unit  22  to be cooled. The charging unit  22  is an example of a high-voltage electric device, and is an example of a heat exchange target device. 
     Note that a high voltage refers to a voltage greater than 60 V, for example. Accordingly, a high-voltage electric device is an electric device to which a voltage greater than, for example, 60 V is applied. In addition, a heat exchange target device refers to a device that is to be subjected to heat exchange performed using a refrigerant that passes through a refrigerant pipe to be described later. 
     A high-voltage junction box (JB)  24 , a power control unit (PCU)  26 , a motor  28 , a DC/DC converter  30 , and the like are mounted in the vehicle  10 . 
     The high-voltage JB  24  is connected to the battery  20 . The high-voltage JB  24  divides power supplied from the battery  20  into a plurality of parts, and supplies them to a plurality of electric devices. 
     The PCU  26  and the DC/DC converter  30  are connected to the high-voltage JB  24 . 
     The PCU  26  is a unit that controls the power between the battery  20  and the motor  28 . The PCU  26  includes a DC/DC converter that boosts the voltage of the battery  20 , a DC/AC converter for driving the motor  28 , and so forth. After being boosted by the DC/DC converter, the power from the battery  20  is then converted into a 3-phase AC by the DC/AC converter, and is supplied to the motor  28 . 
     The DC/DC converter  30  lowers the voltage of the battery  20 . Various electric devices of the vehicle are connected to the DC/DC converter  30 . As the electric devices, an electronic control unit (ECU), an actuator, a display device, a light-emitting diode, a lamp, an entertainment device, and so forth are envisaged 
     The high-voltage JB  24 , the PCU  26 , and the DC/DC converter  30  are also units that are likely to generate heat, and it is desirable for the high-voltage JB  24 , the PCU  26 , and the DC/DC converter  30  to be cooled. The high-voltage JB  24 , the PCU  26 , and the DC/DC converter  30  that have been described above are examples of a high-voltage electric device to which a voltage supplied from the battery  20  is applied. In addition, the high-voltage JB  24 , the PCU  26 , the DC/DC converter  30  are examples of a heat exchange target device. 
     The motor  28  is also a unit that is likely to generate heat, and it is desirable for the motor  28  to be cooled. The motor  28  is an example of a high-voltage electric device. The motor  28  is also an example of a heat exchange target device. 
     In addition, a positive temperature coefficient (PTC) heater  32  is mounted in the vehicle  10 . The PTC heater  32  is connected to the high-voltage JB  24 , and can generate heat as a result of being supplied with power from the battery  20 . Here, in gasoline automobiles and diesel automobiles, heating can be performed by an air conditioner unit using waste heat resulting from fuel combustion. In contrast, if the vehicle  10  is a BEV, it is not possible to use waste heat resulting from fuel combustion. In view of this, also in a BEV, heating can be performed by the air conditioner unit by using the PTC heater  32 . The PTC heater may also be used as a heater that warms the battery  20  under cold conditions and the like. 
     The PTC heater  32  is an example of a high-voltage electric device that is driven by a high voltage. In addition, the PTC heater  32  is also an example of a heat exchange target device in which a refrigerant that passes through a later-described refrigerant pipe is heated. 
     In the present example, the battery  20  and the charging unit  22  are connected by a wire W 1 . The battery  20  and the high-voltage JB  24  are connected by a wire W 2 . The high-voltage JB  24  and the PCU  26  are connected by a wire W 3 . The high-voltage JB  24  and the DC/DC converter  30  are connected by a wire W 4 . The high-voltage JB  24  and the PTC heater  32  are connected by a wire W 5 . The wires W 1  to W 4  are examples of a wire that is connected to heat exchange target devices. In addition, the wires W 1  to W 5  are examples of a high-voltage wire. Here, the high-voltage wire refers to a wire to which a voltage greater than, for example, 60 V is applied. 
     Refrigerant Circuit 
     An example of a refrigerant circuit  60  that is incorporated in the above vehicle  10  will be described. 
     The refrigerant circuit  60  is a circuit through which a refrigerant is to be passed, and is configured to be routed through two or more of the PTC heater  32 , high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 . 
     In the present embodiment, the refrigerant circuit  60  is configured to be routed through all of the PTC heater  32 , the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 . 
     More specifically, the refrigerant circuit  60  includes a tank  62 , a pump  64 , a radiator  66 , and the refrigerant pipe  70 . 
     The tank  62  is a tank that stores a refrigerant. The pump  64  is a pump that delivers the refrigerant so as to pass through devices via the refrigerant pipe  70 . The radiator  66  is an apparatus that radiates the heat from the refrigerant. 
     The refrigerant pipe  70  is a pipe made of a resin or metal through which a refrigerant for performing heat exchange in the heat exchange target devices that are mounted in a vehicle passes. The refrigerant pipe  70  is connected to link the above devices. Here, as an example, the refrigerant pipe  70  constitutes a refrigerant circuit that starts from the tank  62 , passes through the pump  64 , the radiator  66 , the PCU  26 , the high-voltage JB  24 , the battery  20 , the charging unit  22 , the battery  20 , the high-voltage JB  24 , the DC/DC converter  30 , the PTC heater  32 , a heat exchanger  33 , and the motor  28 , and returns to the tank  62 . In the radiator  66 , the PCU  26 , the high-voltage JB  24 , the battery  20 , the charging unit  22 , the battery  20 , the high-voltage JB  24 , the DC/DC converter  30 , the PTC heater  32 , the heat exchanger  33 , and the motor  28 , a pipe dedicated to heat exchange may be provided. In this case, the refrigerant pipe  70  is connected to these pipes provided in the devices. Alternatively, the refrigerant pipe  70  may directly pass through the devices and perform heat exchange. The order in which the refrigerant circuit passes through the devices is not limited to the above example. The order in which the refrigerant circuit passes through the devices may be determined as appropriate, taking into account the degrees of heat generation, the working temperature ranges, and the like of the devices. 
     The refrigerant stored in the tank  62  is then sent to the radiator  66  by the pump  64 . The refrigerant is cooled by the radiator  66 . The cooled refrigerant is sent to the PCU  26 , the high-voltage JB  24 , the battery  20 , the charging unit  22 , the battery  20 , the high-voltage JB  24 , and the DC/DC converter  30  through the refrigerant pipe  70 , and cools those devices. After that, the refrigerant is heated by the PTC heater  32 , and is then sent to the heat exchanger  33 . In the heat exchanger  33 , air for warming the passenger compartment of the vehicle is heated, and the refrigerant is cooled. The refrigerant then passes through the motor  28 , and cools the motor  28 . The refrigerant then returns to the tank  62 . 
     That is to say, in the present embodiment, the refrigerant circuit that constitutes a PTC heater system that includes the PTC heater  32 , a temperature control system that cools the high-voltage electric devices, and a temperature control system of the battery  20  is configured as one circuit. The refrigerant circuit being configured as one circuit refers to the refrigerant circuit being configured such that the refrigerant can pass through the devices targeted for heat exchange, for example. In this case, one or more tanks may be used. Also, one or more pumps may be used. In addition, a configuration may also be adopted in which the refrigerant circuit splits halfway, and joins at another portion. 
     The wires W 1  to W 4  extend respectively along refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  of the refrigerant pipe  70 . Here, the refrigerant pipe  70   a  connects the battery  20  and the charging unit  22 . The refrigerant pipe  70   b  connects the battery  20  and the high-voltage JB  24 . The refrigerant pipe  70   c  connects the high-voltage JB  24  and the PCU  26 . The refrigerant pipe  70   d  connects the high-voltage JB  24  and the DC/DC converter  30 . 
     A configuration for disposing the wires W 1  to W 4  respectively along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  will be described later. 
     The temperature management system  50  with a wire according to the present embodiment includes the above refrigerant pipe  70  and the wires W 1  to W 4 . 
     Here, the wires W 1  to W 4  extend along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  of the above refrigerant pipe  70 . 
     The wires W 1  to W 4  connect devices, and the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  also connect between devices. Therefore, it is easy to incorporate the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  and the wires W 1  to W 4  that extent respectively along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  into the vehicle at the same time. If the wire W 1  extends along the refrigerant pipe  70   a  that connects the battery  20  and the charging unit  22 , for example, then the refrigerant pipe  70   a  and the wire W 1  can be easily incorporated between the battery  20  and the charging unit  22  at the same time. 
     With the temperature management system  50  with a wire configured in this manner, at least some of the wires W, namely the wires W 1  to W 4  extend along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d.  Therefore, in the vehicle  10 , it is not necessary to separately ensure arrangement spaces of the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  and arrangement spaces of the wires W 1  to W 4 . It is possible to dispose the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  and the wires W 1  to W 4  in shared arrangement spaces. Accordingly, the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  and the wires W 1  to W 4  can be mounted in a compact form in the vehicle. 
     In addition, the wires W 1  to W 4  are connected to devices whose temperatures are managed using the refrigerant that passes through the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d,  respectively. That is to say, the devices to which the wires W 1  to W 4  are respectively connected are the same as the devices whose temperatures are managed using the refrigerant that passes through the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d.  Therefore, it is possible to make the form in which the wires W 1  to W 4  extend along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  more compact. 
     In addition, the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  are connected to high-voltage electric devices, and the temperatures of the high-voltage electric devices are managed using the refrigerant that passes through the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d.  A high voltage is applied to the high-voltage wires W 1  to W 4 , and thus the high-voltage wires W 1  to W 4  are likely to generate heat. It is possible to effectively cool the high-voltage wires W 1  to W 4  that are connected to the high-voltage electric devices, using the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d.    
     In addition, the refrigerant circuit  60  is routed through two or more of the PTC heater  32 , the high-voltage electric devices, and the battery  20 , and thus it is possible to reduce the number of components constituting the refrigerant circuit  60 . By disposing the wires W 1  to W 4  along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  that constitute the above refrigerant circuit  60 , the wires W 1  to W 4  and the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  can be mounted in a compact form in the vehicle  10 . 
     Regarding Configuration for Disposing Wires Along Refrigerant Pipes 
     An exemplary configuration for disposing the wires W 1  to W 4  along the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  and holding the wires will be described. 
       FIG. 2  is a schematic cross-sectional view showing a first exemplary configuration for disposing wires W along a refrigerant pipe  170 . The refrigerant pipe  170  is an example of a pipe that is applicable to the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d.  Hereinafter, the wires W 1  to W 4  may be referred to as “wires W” without distinguishing them. 
     The refrigerant pipe  170  has a configuration in which a pipe body portion  172  and a wire holding portion  174  are formed integrally as one piece. The refrigerant pipe  170  is formed, for example, by extrusion molding a resin. 
     The pipe body portion  172  is formed in a tubular shape that allows a refrigerant to pass therethrough. 
     Each wire W includes a core wire, and an insulating coating surrounding the core wire. The core wire may be a solid wire, or may be a stranded wire. The insulating coating is formed, for example, by subjecting the core wire to extrusion coating. Here, the transverse cross-sectional shape (the shape of a cross section orthogonal to the axial direction) of the wire W is a circular shape. The transverse cross-sectional shape of the wire W may be a square shape, a rectangular shape, or the like. Here, an example is shown in which two wires W are held along the refrigerant pipe  170 . The number of wires W may be one, or may be three. In the following, the smallest circle that is in contact with the outer circumference of one or more wires W may be referred to as a circumscribed circle. 
     The wire holding portion  174  is formed so as to protrude outward from a portion of the outer circumference of the pipe body portion  172 . The wire holding portion  174  is formed in a tubular shape having a slit  175  formed in a portion of the outer circumference thereof. The inner diameter of the wire holding portion  174  is set to be a size large enough to house the wires W therein. For example, the inner diameter of the wire holding portion  174  is set to be about the same as the diameter of the circumscribed circle of the wires W. The width of the slit  175  is set to be a size large enough to house the wires W in the wire holding portion  174  using the elastic deformation of the wire holding portion  174 , and to prevent the wires W from falling out of the wire holding portion  174  in a state in which the wires W are housed in the wire holding portion  174 . For example, the width of the slit  175  is set to be smaller than the diameter of the circumscribed circle of the wires W, and larger than the radius thereof. Here, the slit  175  is open to the side opposite to the pipe body portion  172 . The position at which the slit  175  is open may be another position. 
     As a result of the slit  175  being opened through elastic deformation of the wire holding portion  174 , the wires W are housed in the wire holding portion  174 . In a state in which the wires W are housed in the wire holding portion  174 , the wire holding portion  174  is elastically restored to its original shape. Then, the slit  175  is closed, whereby the wires W are held by the wire holding portion  174 . This allows the wires W to be kept held along the refrigerant pipe  170 . 
       FIG. 3  is a schematic diagram showing a modification of the refrigerant pipe  170  shown in  FIG. 2 . A refrigerant pipe  170 B according to this modification includes a pipe body portion  172 , and a plurality of (here, two) wire holding portions  174 B. 
     The pipe body portion  172  and the plurality of wire holding portions  174 B are molded as a single piece using a resin or the like. Here, the two wire holding portions  174 B are provided on opposite sides of the pipe body portion  172 . The plurality of wire holding portions may be provided adjacent to each other on the outer circumferential side of the pipe body portion. 
     The wire holding portions  174 B are each configured in the same manner as the wire holding portion  174  described above. The wire holding portions  174 B are each formed in a size large enough to hold a wire W that is to be held therein. The width of each slit  175  is set to be a size large enough to house the wire W in each wire holding portion  174 B using elastic deformation of the wire holding portion  174 B, and to prevent the wire W from falling out. 
     According to the example shown in  FIG. 2 or 3 , the wires W can be easily attached along the refrigerant pipe  170  or  170 B. 
     Since the refrigerant pipe  170  or  170 B and the wires W are supplied in an integrated form, the ease of attachment to the vehicle  10  is increased. It is also possible that the refrigerant pipe  170  or  170 B and the wires W are provided in separate forms, and they are integrated with each other when attached to the vehicle  10 . This allows the attachment operation to be performed in a flexible manner. 
     Since the wires W are attached close to the refrigerant pipe  170  or  170 B, the effect of cooling the wire W is increased. 
     In particular, in the example show in  FIG. 3 , a plurality of (here, two) wires W are held in one-to-one correspondence by a plurality of (here, two) wire holding portions  174 B. Accordingly, the wires W are held close to the pipe body portion  172 , and the wires W are effectively cooled. 
       FIG. 4  is a schematic cross-sectional view showing a second exemplary configuration for disposing the wire W along a refrigerant pipe  70 . Hereinafter, the refrigerant pipes  70   a,    70   b,    70   c,  and  70   d  may be referred to as “refrigerant pipes  70 ” without distinguishing them. 
     In the present example, the wire W is held along the refrigerant pipe  70  by an attachment member  280 . 
     The attachment member  280  includes a pipe attachment portion  282  and a wire attachment portion  284 . The attachment member  280  is made of a resin or the like. 
     The pipe attachment portion  282  is an annular portion having an opening  283  formed in a portion thereof in the circumferential direction, or in other words, is a C-shaped member. The pipe attachment portion  282  is set to have an inner diameter capable of housing the refrigerant pipe  70 . The opening  283  is set to be smaller than the diameter of the refrigerant pipe  70 . Also, the opening  283  is opened by elastically deforming the pipe attachment portion  282 . Through the opened opening  283 , the refrigerant pipe  70  is housed in the pipe attachment portion  282 . In this state, the pipe attachment portion  282  is elastically restored to its original shape, whereby the pipe attachment portion  282  is attached to the refrigerant pipe  70 . 
     The wire attachment portion  284  is an annular portion having an opening  285  formed in a portion thereof in the circumferential direction, or in other words, is a C-shaped member. The wire attachment portion  284  is set to have an inner diameter capable of housing the wire W. The opening  285  is set to be smaller than the diameter of the circumscribed circle of the wire W. Also, the opening  285  is opened by elastically deforming the wire attachment portion  284 . Through the opened opening  285 , the wire W is housed in the wire attachment portion  284 . In this state, the wire attachment portion  284  is elastically restored to its original shape, whereby the wire attachment portion  284  is attached to the wire W. 
     The attachment member  280  is a short member that is partially attached to the wire W and the refrigerant pipe  70  in the extension direction thereof. The attachment member  280  may be an elongated member that is attached to the wire W and the refrigerant pipe  70  over a certain length. 
     Note that the directions of the opening  283  of the pipe attachment portion  282  and the opening  285  of the wire attachment portion  284  may be any directions. 
     In the present example, the attachment member  280  includes a vehicle fixing portion  286  that is to be fixed to the vehicle. Here, the vehicle fixing portion  286  includes a base portion  286   a,  a columnar portion  286   b,  and catch portions  286   c.  The base portion  286   a  is formed in a disc shape or a dish shape. The base portion  286   a  is molded integrally with the wire attachment portion  284  at a position adjacent to a portion of the outer circumference of the wire attachment portion  284 . The base portion may be formed integrally with the pipe attachment portion at a position adjacent to a portion of the outer circumference of the pipe attachment portion. 
     The columnar portion  286   b  is an oblong columnar portion protruding outward from the center of the base portion  286   a.    
     A pair of catch portions  286   c  are provided at a distal end portion of the columnar portion  286   b.  The outward facing surface of each catch portion  286   c  is formed so as to be inclined outward from the distal end portion to a proximal end portion of the columnar portion  286   b.    
     Also, when the vehicle fixing portion  286  is inserted into a fixing hole  10   h  formed in the vehicle  10 , and the catch portions  286   c  have moved through the fixing hole  10   h,  the catch portions  286   c  are caught on a portion of the vehicle  10  that is located around the fixing hole  10   h.  Consequently, the portion of the vehicle  10  that is located around the fixing hole  10   h  is sandwiched between the catch portions  286   c  and the base portion  286   a.  Accordingly, the vehicle fixing portion  286  is fixed to the vehicle  10 . 
     The configuration of the vehicle fixing portion  286  is not limited to the above-described example. The vehicle fixing portion may be a portion that is to be fixed to the vehicle through screwing, or a portion that is to be fixed to the vehicle through welding or the like. The vehicle fixing portion  286  may be omitted. 
     According to the present example, by using the attachment member  280 , the wire W can be easily attached to the refrigerant pipe  70 . 
     Since the refrigerant pipe  70  and the wire W are supplied in an integrated form, the ease of attachment to the vehicle  10  is increased. It is also possible that the refrigerant pipe  70  and the wire W are provided in separate forms, and they are integrated with each other using the attachment member  280  when being attached to the vehicle  10 . This allows the attachment operation to be performed in a flexible manner. 
     By fixing the vehicle fixing portion  286  to the vehicle  10 , it is possible to fix the wire W and the refrigerant pipe  70  to the vehicle. 
       FIG. 5  is a schematic cross-sectional view showing a third exemplary configuration for disposing wires W along the refrigerant pipe  70 . 
     In the present example, the wires W are disposed along the refrigerant pipe  70 . A bundling member  380  is wrapped around the wires W and the refrigerant pipe  70 . Adhesive tape, a cable tie, or the like is used as the bundling member  380 . 
     Here, components for fixing the wires to the vehicle include a component having an oblong plate-shaped portion molded integrally with its constituent portion as in the case of the vehicle fixing portion  286  described above. The bundling member  380  described above may be wrapped around the wires W and the refrigerant pipe  70  with the plate-shaped portion of this component being bundled together therewith. 
     According to the present example, the wires W can be easily attached to the refrigerant pipe  70  using the binding member  380 . 
     In addition, since the refrigerant pipe  70  and the wires W are supplied in an integrated form, the ease of attachment to the vehicle  10  is increased. It is also possible that the refrigerant pipe  70  and the wires W are provided in separate forms, and they are integrated with each other using the binding member  380  when attached to the vehicle  10 . This allows the attachment operation to be performed in a flexible manner. 
     In addition, the wires W are bound in a state of being in contact with the refrigerant pipe  70 , and thus it is also possible to increase the effect of cooling the wires W. 
     Modification 
     In the present embodiment, an example has been described in which the refrigerant circuit  60  is a system that performs heat exchange, and is routed through the PTC heater  32 , the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 . The refrigerant circuit may also be a heat exchange system that is separately routed through the PTC heater  32 , the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 . The refrigerant circuit  60  may also be a heat exchange system that is routed through two or more of the PTC heater  32 , the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 . 
     A temperature management system  450  with a wire shown in  FIG. 6  includes two refrigerant circuits  460  and  480 , for example. The refrigerant circuit  460  is a heat exchange system that is routed through the PTC heater  32  and the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 . The refrigerant circuit  480  is a system that performs heat exchange, and is routed through the battery  20 . The wire W 3  that connects the PCU  28  and the high-voltage JB  24  is disposed along the refrigerant pipe  70   c  of the refrigerant circuit  460  that connects a PCU  28  and the high-voltage JB  24 . Also, W 4  that connects the high-voltage JB  24  and the DC/DC converter  30  is disposed along the refrigerant pipe  70   d  of the refrigerant circuit  460  that connects the high-voltage JB  24  and the DC/DC converter  30 . 
     Also according to the present example, except for the operative effects of the refrigerant circuit  60  being routed through the battery  20 , it is possible to achieve operative effects similar to those of the above embodiment. 
     In addition, for example, a temperature management system  550  with a wire shown in g  FIG. 7  includes two refrigerant circuits  560 ,  580 , and  590 . The refrigerant circuit  560  is a system that performs heat exchange, and is routed through the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 . The refrigerant circuit  580  is a system that performs heat exchange, and is routed through the battery  20 . The refrigerant circuit  590  is a heat exchange system that is routed through the PTC heater  32 . The wire W 3  that connects the PCU  28  and the high-voltage JB  24  is disposed along the refrigerant pipe  70   c  of the refrigerant circuit  560  that connects the PCU  28  and the high-voltage JB  24 . Also, W 4  that connects the high-voltage JB  24  and the DC/DC converter  30  is disposed along the refrigerant pipe  70   d  of the refrigerant circuit  560  that connects the high-voltage JB  24  and the DC/DC converter  30 . 
     Also according to the present example, except for the operative effects of the refrigerant circuit  60  being routed through the PTC heater  32 , the high-voltage electric devices  22 ,  24 ,  26 ,  28 , and  30 , and the battery  20 , it is possible to achieve operative effects similar to those of the above embodiment. 
     The configurations described in the embodiment and the modification may be combined as appropriate as long as there are no mutual inconsistencies. For example, the configurations respectively shown in  FIGS. 2, 3, 4, and 5  above may be used in combination as the configuration for disposing the wire along the refrigerant pipe. 
     LIST OF REFERENCE NUMERALS 
       10  Vehicle 
       10   h  Fixing hole 
       20  Battery 
       22  Charging unit (high-voltage electric device) 
       24  High-voltage JB (high-voltage electric device) 
       26  PCU (high-voltage electric device) 
       28  Motor (high-voltage electric device) 
       30  DC/DC converter (high-voltage electric device) 
       32  PTC heater 
       33  Heat exchanger 
       50  Temperature management system with wire 
       60  Refrigerant circuit 
       62  Tank 
       64  Pump 
       66  Radiator 
       70 ,  70   a,    70   b,    70   c,    70   d,    170 ,  170 B Refrigerant pipe 
       172  Pipe body portion 
       174 ,  174 B Wire holding portion 
       175  Slit 
       280  Attachment member 
       282  Pipe attachment portion 
       283  Opening 
       284  Wire attachment portion 
       285  Opening 
       286  Vehicle fixing portion 
       286   a  Base portion 
       286   b  Columnar portion 
       286   c  Catch portions 
       380  Binding member 
       450  Temperature management system with wire 
       460  Refrigerant circuit 
       480  Refrigerant circuit 
       550  Temperature management system with wire 
       560  Refrigerant circuit 
       580  Refrigerant circuit 
       590  Refrigerant circuit 
     W Wire 
     W 1 , W 2 , W 3 , W 4 , W 5  Wire (high-voltage wire)