Human-power driven vehicle component or fishing gear

Abstract

To provide a human-power driven vehicle or a fishing gear that provides improved radiation performance.SOLUTION: A human-power driven vehicle component or a fishing gear includes: a housing; a heat pipe at least partially disposed within the housing and including a heat input section, a heat dissipation section, a flow path extending at least between the heat input section and the heat dissipation section, and a fluid filled within the flow path; and a heat-generating member that is disposed near the heat input section of the heat pipe in the housing. The flow path of the heat pipe has a contact surface with which the fluid comes into contact, and water repellent treatment is applied to the contact surface of the flow path.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to the technology of parts for human-powered vehicles or fishing equipment. [Background technology]

[0002] Conventionally, parts for human-powered vehicles or fishing equipment equipped with heat pipes have been known. For example, Patent Document 1 discloses technology for a dynamo for human-powered vehicles that is configured to release heat generated by power generation to the outside of the dynamo through a heat pipe. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 51-89104 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional parts for human-powered vehicles or fishing equipment, improvement in heat dissipation performance is desired.

[0005] One object of the present disclosure is to provide a part for a human-powered vehicle or fishing equipment that has improved heat dissipation performance. [Means for solving the problem]

[0006] A part for a human-powered vehicle or fishing equipment according to a first aspect of the present disclosure comprises a housing, a heat pipe at least partially disposed within the housing and including a heat input portion, a heat dissipation portion, a flow path extending at least between the heat input portion and the heat dissipation portion, and a fluid filled within the flow path, and a heat-generating member disposed within the housing near the heat input portion of the heat pipe, wherein the flow path of the heat pipe has a contact surface that comes into contact with the fluid, and the contact surface of the flow path is treated to be water-repellent. According to the part for a human-powered vehicle or fishing equipment of the first aspect, heat dissipation performance is improved due to efficient heat transport.

[0007] In the part for a human-powered vehicle or fishing equipment according to the second aspect of the present invention, the filling rate of the fluid in the heat pipe is 30 vol.% or less. According to the second aspect of the part for a human-powered vehicle or fishing equipment, the efficiency of heat transport is excellent.

[0008] In the part for a human-powered vehicle or fishing equipment of the third aspect according to the second aspect, the filling rate is 5 to 10 vol.%. According to the third aspect of the part for a human-powered vehicle or fishing equipment, the efficiency of heat transport is further improved.

[0009] In the part for a human-powered vehicle or fishing equipment of the fourth aspect according to any one of the first to third aspects, the heat pipe has an outer surface, and the outer surface is subjected to an insulating treatment. According to the part for a human-powered vehicle or fishing equipment of the fourth aspect, there is no need to provide a separate insulating member, and the part for a human-powered vehicle or fishing equipment can be made smaller and lighter.

[0010] In the part for a human-powered vehicle or fishing equipment of the fifth aspect according to the fourth aspect, the insulating treatment is anodizing treatment. According to the part for a human-powered vehicle or fishing equipment of the fifth aspect, there is no need to provide a separate insulating member, and the part for a human-powered vehicle or fishing equipment can be made smaller and lighter.

[0011] In the part for a human-powered vehicle or fishing equipment of the sixth aspect according to any one of the first to fifth aspects, the heat pipe is fixed to the housing by soldering. According to the sixth aspect of the human-powered vehicle part or fishing equipment, the thermal conductivity between the heat pipe and the housing is improved.

[0012] In the part for a human-powered vehicle or fishing equipment of the seventh aspect according to any one of the first to sixth aspects, the housing has a recess, and at least a part of the heat dissipation portion of the heat pipe is disposed in the recess. According to the seventh aspect, the part for a human-powered vehicle or fishing equipment has an excellent heat dissipation effect.

[0013] In the eighth aspect of the human-powered vehicle part or fishing equipment according to any one of the first to seventh aspects, the housing has a through hole, and at least a portion of the heat dissipation portion of the heat pipe is positioned outside the housing through the through hole. According to the eighth aspect of the invention, the part for a human-powered vehicle or fishing equipment has an excellent heat dissipation effect.

[0014] In the part for a human-powered vehicle or fishing equipment of the ninth aspect according to any one of the first to eighth aspects, the heat input portion of the heat pipe contacts a heat-generating member. According to the ninth aspect, the part for a human-powered vehicle or fishing equipment has an excellent heat dissipation effect.

[0015] In the part for a human-powered vehicle or fishing equipment of the tenth aspect according to any one of the first to ninth aspects, the heat dissipation portion of the heat pipe contacts the housing. According to the tenth aspect of the invention, the part for a human-powered vehicle or fishing equipment has an excellent heat dissipation effect.

[0016] In a part for a human-powered vehicle or fishing equipment of an eleventh aspect according to any one of the first to tenth aspects, the heat pipe and the heat-generating member are arranged in the housing so as to be in contact with each other, and a resin sealant is further provided which fills the space between the heat pipe and the heat-generating member and the housing. According to the part for a human-powered vehicle or a fishing implement of the eleventh aspect, the heat dissipation effect is excellent.

[0017] In a part for a human-powered vehicle or fishing equipment of a twelfth aspect according to any one of the first to eleventh aspects, the heat pipe includes a first portion including a heat input portion and extending in a first direction, and a second portion including a heat dissipation portion and extending in a second direction different from the first direction. According to the twelfth aspect of the invention, the part for a human-powered vehicle or the fishing equipment has an excellent heat dissipation effect.

[0018] In the part for a human-powered vehicle or fishing equipment of the thirteenth aspect according to the twelfth aspect, the first portion contacts the heat-generating member, and the second portion contacts the housing. According to the thirteenth aspect of the invention, the part for a human-powered vehicle or the fishing equipment has an excellent heat dissipation effect.

[0019] In the part for a human-powered vehicle or the fishing equipment of the fourteenth aspect according to any one of the first to thirteenth aspects, the water-repellent treatment is anodizing treatment or boehmite treatment. According to the fourteenth aspect of the invention, the part for a human-powered vehicle or the fishing equipment has excellent heat transport efficiency.

[0020] In a fifteenth aspect of a part for a human-powered vehicle or fishing equipment according to any one of the first to fourteenth aspects, the flow path of the heat pipe includes a plurality of first flow paths extending in a first flow path direction and at least one second flow path extending in a second flow path direction intersecting the first flow path direction and connecting the plurality of first flow paths. According to the fifteenth aspect, the part for a human-powered vehicle or fishing equipment has an excellent heat dissipation effect.

[0021] In the part for a human-powered vehicle or fishing equipment of the sixteenth aspect according to the fifteenth aspect, the at least one second flow path includes a plurality of second flow paths. According to the sixteenth aspect of the invention, the part for a human-powered vehicle or the fishing equipment has an excellent heat dissipation effect.

[0022] In the part for a human-powered vehicle or fishing equipment of the seventeenth aspect according to any one of the first to sixteenth aspects, the heat pipe has a shape with a notch when viewed in a projected view. According to the seventeenth aspect of the human-powered vehicle part or fishing equipment, the degree of freedom in arranging the heat pipe is improved.

[0023] In the part for a human-powered vehicle or fishing equipment of aspect 18 according to any one of aspects 1 to 17, the heat pipe is a self-regenerating bridge-type heat pipe. According to the eighteenth aspect of the part for a human-powered vehicle or fishing equipment, since an internal structure such as a wick is not required, it is suitable for miniaturization and the heat transport performance is less susceptible to the influence of gravity.

[0024] In the part for a human-powered vehicle or fishing equipment of aspect 19 according to any one of aspects 1 to 18, the heat pipe has a maximum length, and the maximum length is 60 mm or less. According to the nineteenth aspect of the human-powered vehicle part or fishing equipment, it is easy to arrange a heat pipe in the human-powered vehicle part or fishing equipment.

[0025] In the part for a human-powered vehicle or fishing equipment of the twentieth aspect according to any one of the first to nineteenth aspects, the part for a human-powered vehicle includes at least one of a crank arm assembly, a front sprocket assembly, a rear sprocket assembly, a front hub assembly, a rear hub assembly, a rim brake device, a disc brake device, a disc brake rotor, a brake operating device, a front derailleur, a rear derailleur, a gear shift operating device, a front wheel, a rear wheel, a front suspension, a rear suspension, a seat post, an electric drive unit, a battery, a battery mount, a battery charger, a cycle computer, a drive unit operating device, pedals, a handlebar, a saddle, and a mudguard, and the fishing equipment includes at least one of an electric reel, a rod, and a lure. According to the part for a human-powered vehicle or fishing equipment of the twentieth aspect, efficient heat transport improves the heat dissipation performance of the part for a human-powered vehicle or fishing equipment. [Effects of the Invention]

[0026] According to the parts for human-powered vehicles or fishing equipment of the present disclosure, heat dissipation performance is improved due to efficient heat transport. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a side view showing a human-powered vehicle equipped with components for a human-powered vehicle according to a first embodiment. [Figure 2] View of parts for human-powered vehicles from the D2 direction. [Figure 3] View of the heat pipe from the D1 direction. [Figure 4] FIG. 4 is a cross-sectional view taken along line D4-D4 in FIG. 3. [Figure 5] FIG. 5 is an enlarged cross-sectional view showing one of the first flow paths shown in FIG. 4. [Figure 6] 4 is an enlarged view of the portion P shown in FIG. 3 when the fluid filling rate is relatively high. [Figure 7] 4 is an enlarged view of the portion P shown in FIG. 3 when the fluid filling rate is relatively low. [Figure 8] A view of a heat pipe with an insulating outer surface from the D2 direction. [Figure 9] A view of the heat pipe fixed to the housing by soldering, viewed from the D2 direction. [Figure 10] FIG. 11 is a view of the heat pipe according to the second embodiment as seen from the D3 direction. [Figure 11] A view of a heat pipe with part of its heat dissipation section fixed in a recess in the housing, viewed from the D3 direction. [Figure 12] A view of a heat pipe with part of the heat dissipation section located outside the housing, viewed from the D3 direction. [Figure 13] FIG. 10 is a diagram showing a heat pipe according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0028] (First embodiment) A human-powered vehicle component 30 according to a first embodiment will be described. Figures 1 to 9 will be used to describe the human-powered vehicle component 30 according to the first embodiment. Figure 1 will be used to describe a human-powered vehicle 1 including the human-powered vehicle component 30.

[0029] The human-powered vehicle 1 has at least one wheel 15 and is a vehicle that can be propelled at least by human driving force. Human-powered vehicles 1 include various types of bicycles, such as mountain bikes, road bikes, city bikes, cargo bikes, hand bikes, and recumbents. There is no limit to the number of wheels 15 that the human-powered vehicle 1 has. Human-powered vehicles 1 include, for example, unicycles and vehicles with two or more wheels 15. The human-powered vehicle 1 is not limited to vehicles that can be propelled solely by human driving force. The human-powered vehicle 1 also includes E-bikes that use not only human driving force but also the driving force of an electric motor for propulsion. E-bikes include electrically assisted bicycles whose propulsion is assisted by an electric motor. In the following embodiments, the human-powered vehicle 1 will be described as a bicycle.

[0030] The human-powered vehicle 1 includes a crank 10, a frame 11, a saddle 12, a handlebar 13, a fork 14, wheels 15, a front hub assembly 16, a rear hub assembly 17, a drive mechanism 18, a transmission 19, a gear shift operating device 20, a brake device 21, a brake operating device 22, a suspension 23, a battery mount 24, a battery 25, and a cycle computer 26.

[0031] 1 includes a crankshaft 10a that is rotatable relative to a frame 11, and a pair of crank arms 10b that are provided at both axial ends of the crankshaft 10a. Pedals 10c are connected to the pair of crank arms 10b, respectively.

[0032] A saddle 12 is attached to the frame 11 via a seat post 12a. The seat post 12a includes an electric seat post. The frame 11 rotatably supports a handlebar 13 and a fork 14. The handlebar 13 is configured so that it can be grasped by a user. When the handlebar 13 rotates relative to the frame 11, the fork 14 rotates, and the direction of travel of the human-powered vehicle 1 changes.

[0033] The wheels 15 include a front wheel 15a and a rear wheel 15b. The front wheel 15a is attached to the fork 14 via a front hub assembly 16. The front hub assembly 16 supports the front wheel 15a so that it can rotate relative to the fork 14. The front hub assembly 16 includes, for example, a hub shell. A disc brake rotor 15c is provided on the front wheel 15a. The disc brake rotor 15c is configured to rotate integrally with the front wheel 15a as the front wheel 15a rotates.

[0034] The rear wheel 15b is attached to the frame 11 via a rear hub assembly 17. The rear hub assembly 17 supports the rear wheel 15b so that it can rotate relative to the frame 11. The rear hub assembly 17 includes, for example, a hub shell and a sprocket support. The rear wheel 15b is provided with a disc brake rotor 15d. The disc brake rotor 15d is configured to rotate integrally with the rear wheel 15b as the rear wheel 15b rotates.

[0035] The drive mechanism 18 connects the crank 10 and the rear wheel 15b to each other. The drive mechanism 18 includes a first rotating body 18a, a second rotating body 18b, and a driving force transmission unit 18c. In this embodiment, the first rotating body 18a includes a front sprocket assembly 18d. The front sprocket assembly 18d includes a plurality of front sprockets. In this embodiment, the number of front sprockets is two. The number of front sprockets is not limited to this embodiment. The number of front sprockets may be, for example, one.

[0036] The first rotor 18a is configured to rotate in conjunction with the rotation of the crankshaft 10a. When the crankshaft 10a rotates in a first rotational direction and the first rotor 18a rotates in conjunction with the rotation of the crankshaft 10a in the first rotational direction, the human-powered driving force is transmitted to the rear wheel 15b. The human-powered vehicle 1 moves forward as the human-powered driving force is transmitted to the rear wheel 15b. The first rotor 18a may include a one-way clutch that allows the crankshaft 10a and the first rotor 18a to rotate together when the crankshaft 10a rotates in the first rotational direction, and that allows the crankshaft 10a and the first rotor 18a to rotate relative to each other when the crankshaft 10a rotates in a second rotational direction opposite to the first rotational direction.

[0037] In this embodiment, the second rotating body 18b includes a rear sprocket assembly 18e. The rear sprocket assembly 18e includes a plurality of rear sprockets. The number of rear sprockets is not particularly limited. The second rotating body 18b is attached to the rear hub assembly 17. The driving force transmission unit 18c transmits the rotational force of the first rotating body 18a to the second rotating body 18b. The driving force transmission unit 18c includes, for example, a chain.

[0038] When the first rotating body 18a includes multiple front sprockets, the drive mechanism 18 is configured so that the driving force transmission unit 18c is shifted between the multiple front sprockets. When the second rotating body 18b includes multiple rear sprockets, the drive mechanism 18 is configured so that the driving force transmission unit 18c is shifted between the multiple rear sprockets. The components included in the first rotating body 18a, the second rotating body 18b, and the driving force transmission unit 18c are not particularly limited. For example, the first rotating body 18a and the second rotating body 18b may include pulleys, and the driving force transmission unit 18c may include a belt. The first rotating body 18a and the second rotating body 18b may include bevel gears, and the driving force transmission unit 18c may include a shaft.

[0039] The transmission 19 includes at least one of an externally mounted transmission and an internally mounted transmission. In this embodiment, the transmission 19 includes an externally mounted transmission. When the transmission 19 includes an externally mounted transmission, the gear ratio is calculated, for example, by dividing the number of teeth of a front sprocket with which the driving force transmission unit 18c engages by the number of teeth of a rear sprocket with which the driving force transmission unit 18c engages. The externally mounted transmission includes at least one of a front derailleur 19a and a rear derailleur 19b. In this embodiment, the externally mounted transmission includes both the front derailleur 19a and the rear derailleur 19b.

[0040] The gearshift operating device 20 is configured to allow the user to perform gearshift operations. The gearshift operating device 20 is mounted on the handlebars 13. The gearshift operating device 20 includes a first gearshift operating device 20a and a second gearshift operating device 20b. The front derailleur 19a is configured to perform a first upshift and a first downshift in response to the gearshift operation of the first gearshift operating device 20a. The first upshift is an operation in which the driving force transmission unit 18c is switched between the multiple front sprockets so that the gear ratio becomes larger. The first downshift is an operation in which the driving force transmission unit 18c is switched between the multiple front sprockets so that the gear ratio becomes smaller.

[0041] Rear derailleur 19b is configured to perform a second upshift and a second downshift in response to the gear shift operation of second gear shift operating device 20b. The second upshift is an operation in which driving force transmission unit 18c is switched between multiple rear sprockets to increase the gear ratio. The second downshift is an operation in which driving force transmission unit 18c is switched between multiple rear sprockets to decrease the gear ratio.

[0042] The brake device 21 is configured to apply a braking force to the wheel 15. In this embodiment, the brake device 21 includes a disc brake device 21a. The disc brake device 21a applies a braking force to the wheel 15 by clamping disc brake rotors 15c and 15d with a disc brake caliper 21b. The disc brake device 21a includes a first disc brake device 21c and a second disc brake device 21d.

[0043] The first disc brake device 21c is provided corresponding to the front wheel 15a so as to apply a braking force to the front wheel 15a. The second disc brake device 21d is provided corresponding to the rear wheel 15b so as to apply a braking force to the rear wheel 15b. The configuration of the brake device 21 is not limited to this embodiment. The brake device 21 may include, for example, a rim brake device configured to apply a braking force to the rim of the wheel 15.

[0044] The brake operating device 22 is configured to allow the user to perform braking operations. The brake operating device 22 is provided on the handlebars 13. The brake operating device 22 includes a first brake operating device 22a and a second brake operating device 22b. The first disc brake device 21c can apply a braking force to the front wheel 15a in response to braking operation of the first brake operating device 22a. The second disc brake device 21d can apply a braking force to the rear wheel 15b in response to braking operation of the second brake operating device 22b.

[0045] The suspension 23 is configured to absorb shocks to the human-powered vehicle 1. The suspension 23 includes at least one of a front suspension 23a and a rear suspension. In this embodiment, the suspension 23 includes the front suspension 23a. The front suspension 23a is provided on the fork 14. The front suspension 23a operates to absorb shocks that the front wheel 15a receives from the ground.

[0046] The battery mount 24 is mounted on the frame 11. The battery 25 includes, for example, at least one of a non-rechargeable battery and a rechargeable battery. The rechargeable battery is configured to be rechargeable with power from an external power source. The battery 25 is detachable from the battery mount 24. When attached to the battery mount 24, the battery 25 can supply power to devices on the human-powered vehicle 1. The battery 25 can supply power to, for example, the front derailleur 19a and the rear derailleur 19b.

[0047] The cycle computer 26 is configured to provide various types of information related to the human-powered vehicle 1. The cycle computer 26 is mounted on the handlebars 13. The configuration of the human-powered vehicle 1 is not limited to this embodiment. For example, the human-powered vehicle 1 may further include equipment different from that of this embodiment. For example, the human-powered vehicle 1 may further include at least one of a battery charger, mudguards, an electric drive unit, and a drive unit operating device.

[0048] The battery charger is configured to supply power from an external power source to the battery 25 when the battery 25 includes a rechargeable battery. The battery charger can supply power from, for example, a commercial power source to the battery 25. The mudguard is configured to prevent mud and the like splashed up by the wheel 15 from splashing on the user and the frame 11. The mudguard is formed in an arc shape extending in the circumferential direction about the rotational axis of the wheel 15. The mudguard is positioned radially outward of the wheel 15 in the radial direction about the rotational axis of the wheel 15.

[0049] The electric drive unit is configured to provide an assist force to the human-powered vehicle 1. The electric drive unit includes, for example, a housing and an electric motor. The electric drive unit is configured to control the electric motor in one of a plurality of assist modes. The one assist mode is changed in response to operation of the drive unit operating device.

[0050] A human-powered vehicle component 30 of this embodiment will now be described. The human-powered vehicle component 30 is schematically illustrated in Figure 2. The human-powered vehicle component 30 constitutes a part of the human-powered vehicle 1. For example, the human-powered vehicle component 30 may include at least one of a crank arm assembly, a front sprocket assembly 18d, a rear sprocket assembly 18e, a front hub assembly 16, a rear hub assembly 17, a rim brake device, a disc brake device 21a, disc brake rotors 15c and 15d, a brake operating device 22, a front derailleur 19a, a rear derailleur 19b, a gear shift operating device 20, a front wheel 15a, a rear wheel 15b, a front suspension 23a, a rear suspension, a seat post 12a, an electric drive unit, a battery 25, a battery mount 24, a battery charger, a cycle computer 26, a drive unit operating device, pedals 10c, a handlebar 13, a saddle 12, and mudguards.

[0051] The crank arm assembly constitutes a part of the crank 10. The crank arm assembly includes, for example, a crank arm 10b. The crank arm assembly may further include a crankshaft 10a. As shown in FIGS. 2, 3, and 7, the human-powered vehicle component 30 includes a housing 40, a heat pipe 60 at least partially disposed within the housing 40 and including a heat input portion 62, a heat dissipation portion 63, a flow path 65 extending at least between the heat input portion 62 and the heat dissipation portion 63, and a fluid 66 filled within the flow path 65, and a heat-generating member 50 disposed within the housing 40 near the heat input portion 62 of the heat pipe 60. In this embodiment, the heat pipe 60 and the heat-generating member 50 are disposed within the housing 40 so as to be in contact with each other.

[0052] 2 is configured to accommodate at least a portion of the heat pipe 60 and the heat-generating member 50. The housing 40 is formed to have a hollow shape. The housing 40 has an inner surface 42 that defines an interior space 41.

[0053] The heat-generating member 50 is a member that generates heat. The heat-generating member 50 may include, for example, at least one of a member that generates heat during operation of the human-powered vehicle component 30 and a member that is heated by an external factor. For example, the heat-generating member 50 may include a member that is heated by sunlight. When the heat-generating member 50 includes a member that generates heat during operation of the human-powered vehicle component 30, the heat-generating member 50 may include at least one of a circuit component and a brake component. The configuration of the circuit component and the brake component is not particularly limited. The circuit component may include, for example, at least one of a printed circuit board, an integrated circuit (IC), a transistor, a capacitor, a resistor, a converter, a coil, a diode, a sensor, a motor, and a battery. The brake component may include, for example, at least one of a disc brake caliper 21b and disc brake rotors 15c, 15d.

[0054] The heat pipe 60 is configured to dissipate heat generated in the heat-generating member 50 to the outside of the housing 40. In this embodiment, the heat pipe 60 includes a container 61, as shown in FIGS.

[0055] The container 61 is hollow. The container 61 has an outer surface 61a. In this embodiment, the container 61 is formed in a thin plate shape. In this embodiment, the thickness direction of the container 61 is parallel to the D1 direction shown in FIG. 2. As shown in FIG. 3, the container 61 is formed in a rectangular shape when viewed in the thickness direction. In this embodiment, the longitudinal direction of the container 61 is parallel to the D2 direction perpendicular to the D1 direction. The lateral direction of the container 61 is parallel to the D1 direction and the D3 direction perpendicular to the D2 direction. The container 61 is made of a material with relatively high thermal conductivity. For example, the container 61 is made of aluminum.

[0056] The container 61 has a first end 61b and a second end 61c in the direction D2. The first end 61b is formed at one end of the container 61 in the direction D2. The second end 61c is formed on the opposite side of the first end 61b in the direction D2. The heat pipe 60 has a maximum length ML. The maximum length ML is the maximum length along the longitudinal direction of the container 61 from the first end 61b to the second end 61c. In this embodiment, the maximum length ML is the maximum length along the direction D2 from the first end 61b to the second end 61c. The maximum length ML is equal to or less than a predetermined length.

[0057] In this embodiment, the maximum length ML is 60 mm or less. By having the maximum length ML be 60 mm or less, it is easy to arrange the heat pipe 60 in the human-powered vehicle component 30. For example, the heat pipe 60 can be arranged in a housing 40 that has a relatively small shape. The maximum length ML is preferably 50 mm or less. By having the maximum length ML be 50 mm or less, it is even easier to arrange the heat pipe 60 in the human-powered vehicle component 30.

[0058] The container 61 includes a heat input section 62, a heat dissipation section 63, an intermediate section 64, a flow path 65, and a fluid 66. The heat input section 62 is a portion of the outer surface 61a of the container 61 to which heat is applied from the heat-generating member 50. In this embodiment, one side of the outer surface 61a of the container 61 in the direction D2 is the heat input section 62. Of the first end 61b and the second end 61c, this side in the direction D2 is the first end 61b side. As shown in FIG. 4 , the heat input section 62 of the heat pipe 60 contacts the heat-generating member 50. The arrangement of the heat input section 62 is not limited to this embodiment. The heat input section 62 may be arranged so as not to contact the heat-generating member 50. When the heat input section 62 is arranged so as not to contact the heat-generating member 50, it is preferable that the heat input section 62 be arranged near the heat-generating member 50. When the heat-generating member 50 generates heat, heat is transferred from the heat-generating member 50 to the heat input section 62.

[0059] 3 is a portion of the outer surface 61a of the container 61 that dissipates heat applied to the heat input portion 62 to the outside of the heat pipe 60. In this embodiment, the heat dissipation portion 63 is the portion of the outer surface 61a of the container 61 opposite the heat input portion 62 in the direction D2. The heat dissipation portion 63 does not contact the heat-generating member 50. The heat dissipation portion 63 is disposed near the inner surface 42 of the housing 40. For example, the heat dissipation portion 63 is disposed so that the distance from the second end 61c to the inner surface 42 is equal to or shorter than a predetermined distance, thereby being disposed near the inner surface 42.

[0060] The intermediate portion 64 is a portion of the outer surface 61a of the container 61 between the heat input portion 62 and the heat dissipation portion 63. In this embodiment, the portion of the outer surface 61a of the container 61 between the heat input portion 62 and the heat dissipation portion 63 in the D2 direction is the intermediate portion 64. The heat input portion 62, the intermediate portion 64, and the heat dissipation portion 63 are formed so as to be continuous with each other in the D2 direction.

[0061] The flow path 65 is formed to guide the fluid 66. The flow path 65 is formed in the internal space of the container 61. The flow path 65 is configured so that the fluid 66 can receive heat from the heat input portion 62 and can transport the heat received from the heat input portion 62 to the heat dissipation portion 63. The flow path 65 is formed throughout the internal space of the container 61, for example, by arranging multiple partition plates 61d in the internal space of the container 61. In this embodiment, the number of flow paths 65 is one. The flow path 65 is formed to extend in the D2 direction. The flow path 65 is formed at the first end 61b so as to turn back toward the second end 61c. The flow path 65 is formed at the second end 61c of the container 61 so as to turn back toward the first end 61b. The number of flow paths 65 may be multiple.

[0062] As shown in FIGS. 4 and 5, in this embodiment, the cross section of the flow path 65 is formed in a rectangular shape. In this embodiment, the cross section of the flow path 65 is equal to or greater than 0.25 square millimeters and equal to or less than 9.0 square millimeters. The size of the cross section of the flow path 65 is not limited to this embodiment. The shape of the cross section of the flow path 65 is not limited to this embodiment. The cross section of the flow path 65 may be formed in, for example, a circular shape. As shown in FIG. 5, the flow path 65 has a contact surface 65a that comes into contact with the fluid 66. The contact surface 65a is subjected to a water-repellent treatment. The water-repellent treatment is anodizing or boehmite treatment. In this embodiment, the contact surface 65a is subjected to the anodizing treatment. By subjecting the contact surface 65a to the anodizing treatment, the contact surface 65a has a hard anodized aluminum layer 65b.

[0063] 3, the flow path 65 includes a plurality of first flow paths 65c extending in a first flow path direction and at least one second flow path 65d extending in a second flow path direction intersecting the first flow path direction and connecting the plurality of first flow paths 65c. The first flow path direction is the direction from the heat input portion 62 toward the heat dissipation portion 63 and the direction from the heat dissipation portion 63 toward the heat input portion 62. In this embodiment, the first flow path direction is a direction parallel to the D2 direction. In this embodiment, the second flow path direction is a direction parallel to the D3 direction.

[0064] The multiple first flow paths 65c are formed so as to overlap with the heat input section 62, the heat dissipation section 63, and the intermediate section 64 when viewed from the D1 direction. The multiple first flow paths 65c are arranged so as to be aligned in the D3 direction via multiple partition plates 61d. At least one second flow path 65d is formed so as to connect two first flow paths 65c adjacent to each other in the D3 direction. The at least one second flow path 65d is formed in both one end in the D2 direction and the opposite end in the D2 direction of the internal space of the container 61. The at least one second flow path 65d is arranged so as to be aligned in the D3 direction via multiple partition plates 61d.

[0065] The number of the at least one second flow path 65d is one less than the number of the plurality of first flow paths 65c. In this embodiment, the number of the first flow paths 65c is three or more. When the number of the first flow paths 65c is three or more, the at least one second flow path 65d includes the plurality of second flow paths 65d.

[0066] The fluid 66 is filled into the flow path 65 in a vacuum state where the pressure in the flow path 65 is reduced to a predetermined pressure or less. The fluid 66 is, for example, distilled water. The filling rate of the fluid 66 in the heat pipe 60 is calculated, for example, by dividing the volume of the fluid 66 filled in the flow path 65 by the volume of the flow path 65 to obtain the percentage. The filling rate of the fluid 66 in the heat pipe 60 is not particularly limited. For example, the filling rate of the fluid 66 in the heat pipe 60 is 60 vol.% or less. The filling rate of the fluid 66 in the heat pipe 60 is preferably 30 vol.% or less. The filling rate is more preferably 5 to 10 vol.%.

[0067] 6 and 7 are enlarged schematic views of portion P shown in FIG. 3. The hard anodized aluminum layer 65b is omitted from FIGS. 6 and 7. FIG. 6 shows an example of the fluid 66 when the heat-generating member 50 generates heat in a state where the filling rate of the fluid 66 is relatively high. The filling rate of the fluid 66 in FIG. 6 is, for example, 60 vol.% or less and higher than 30 vol.%.

[0068] 6, when the filling rate of the fluid 66 is relatively high, the fluid 66 includes a plurality of liquid slugs 66a and a plurality of vapor plugs 66b. The plurality of liquid slugs 66a are formed by the surface tension of the fluid 66. The plurality of vapor plugs 66b are formed by the fluid 66 vaporizing in the flow path 65. The plurality of liquid slugs 66a are held by the plurality of vapor plugs 66b.

[0069] When the heat-generating member 50 generates heat, a pressure difference occurs between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65. For example, when the heat-generating member 50 generates heat, the fluid 66 evaporates on the heat input section 62 side of the flow path 65 due to the heat from the heat-generating member 50, and the pressure on the heat input section 62 side of the flow path 65 increases. For example, on the heat dissipation section 63 side of the flow path 65, the heat of the steam plug 66b is released to the inner surface 42 of the housing 40, causing the fluid 66 to condense, and the pressure on the heat dissipation section 63 side of the flow path 65 decreases.

[0070] A pressure difference between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65 causes the liquid slug 66a to self-excitedly vibrate and move back and forth between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65. By moving back and forth between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65, the liquid slug 66a receives heat from the heat-generating member 50 on the heat input section 62 side of the flow path 65 and transports it to the heat dissipation section 63. The heat transported to the heat dissipation section 63 is released into the external space of the housing 40 via the internal space 41 and the inner surface 42 of the housing 40. By releasing the heat transported to the heat dissipation section 63 into the external space of the housing 40, the heat pipe 60 can cool the heat-generating member 50.

[0071] In this embodiment, the heat pipe 60 is a self-regenerative bridge-type heat pipe. A self-regenerative bridge-type heat pipe is a heat pipe in which heat is transported by self-excited vibrations of multiple bridges 66c. The multiple bridges 66c will be described using FIG. 7.

[0072] FIG. 7 shows an example of the fluid 66 when the heat-generating member 50 generates heat while the filling rate of the fluid 66 is relatively low. The filling rate of the fluid 66 in FIG. 7 is, for example, 30 vol.% or less. In this embodiment, the contact surface 65a is subjected to a water-repellent treatment, so the fluid 66 condenses in a dropwise condensation state. The dropwise condensation state is a state in which the fluid 66 in contact with the contact surface 65a is formed into a spherical or hemispherical shape. As the fluid 66 in the dropwise condensation state grows, multiple thin-film bridges 66c that shield the cross section of the flow path 65 are formed. The film thickness of the multiple bridges 66c is, for example, half or less of the maximum length of the surface of the multiple bridges 66c facing the steam plug 66b. In this embodiment, the cross-sectional area of the flow path 65 is 0.25 square millimeters or more and 9.0 square millimeters or less, which makes it easy for multiple bridges 66c to form in the flow path 65.

[0073] The volume of the multiple bridges 66c is smaller than the volume of the multiple liquid slugs 66a shown in Fig. 6. Because the volume of the multiple bridges 66c is smaller than the volume of the multiple liquid slugs 66a, the multiple bridges 66c can easily move back and forth between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65 even if the pressure difference between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65 is relatively small.

[0074] When the heat-generating member 50 generates heat, the fluid 66 evaporates on the heat input section 62 side of the flow path 65, and at least one bridge 66c arranged on the heat input section 62 side of the flow path 65 collapses. The collapse of at least one bridge 66c arranged on the heat input section 62 side of the flow path 65 creates pressure that moves the bridges 66c that have not evaporated. By creating pressure that moves the bridges 66c that have not evaporated, the multiple bridges 66c that have not evaporated can easily move back and forth between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65.

[0075] Because multiple bridges 66c can easily move back and forth between the heat input section 62 side of the flow path 65 and the heat dissipation section 63 side of the flow path 65, the self-regenerative bridge-type heat pipe can efficiently transport heat from the heat input section 62 to the heat dissipation section 63. By being able to efficiently transport heat from the heat input section 62 to the heat dissipation section 63, the self-regenerative bridge-type heat pipe can improve heat dissipation performance.

[0076] Because the self-regenerative bridge-type heat pipe can transport heat by the reciprocating movement of multiple bridges 66c, the heat pipe 60 does not require an internal structure such as a wick. By not requiring an internal structure such as a wick, the heat pipe 60 is suitable for miniaturization. Because the self-regenerative bridge-type heat pipe can transport heat by the reciprocating movement of multiple bridges 66c, the heat pipe 60's heat transport performance is less susceptible to the effects of gravity.

[0077] The configuration of the human-powered vehicle component 30 is not limited to this embodiment. The human-powered vehicle component 30 may further include components different from those of this embodiment. For example, the human-powered vehicle component 30 may further include a resin sealant filled in the space between the heat pipe 60 and the heat-generating component 50 and the housing 40. The space between the heat pipe 60 and the heat-generating component 50 and the housing 40 is defined by the outer surface 61a of the container 61, the outer surface of the heat-generating component 50, and the inner surface 42 of the housing 40, as shown in FIG. 2 . In this embodiment, the space between the heat pipe 60 and the heat-generating component 50 and the housing 40 is part of the internal space 41 of the housing 40.

[0078] The resin sealant, for example, fills the entire space between the heat pipe 60 and the heat-generating component 50 and the housing 40. By filling the entire space between the heat pipe 60 and the heat-generating component 50 and the housing 40, the resin sealant comes into contact with both the heat dissipation portion 63 of the heat pipe 60 and the inner surface 42 of the housing 40. The resin sealant includes, for example, at least one of urethane resin and epoxy resin. The thermal conductivity of the resin sealant is higher than that of air. Because the thermal conductivity of the resin sealant is higher than that of air, the human-powered vehicle component 30 can efficiently transfer heat from the heat dissipation portion 63 to the inner surface 42 of the housing 40 via the resin sealant. By efficiently transferring heat from the heat dissipation portion 63 to the inner surface 42, the human-powered vehicle component 30 has excellent heat dissipation properties.

[0079] Another example of the arrangement of the heat pipe 60 will be described with reference to Figures 8 and 9. The heat pipe 60 shown in Figure 8 has an outer surface. In Figure 8, the outer surface of the heat pipe 60 includes the outer surface 61a of the container 61. The outer surface is subjected to an insulating treatment. The insulating treatment is an anodizing treatment. The type of insulating treatment is not limited to an anodizing treatment.

[0080] The heat pipe 60 is disposed in the direction D1 so as to be in contact with the inner surface 42 of the housing 40 and the heat-generating member 50. In this embodiment, the heat input portion 62 of the heat pipe 60 is disposed so as to be in contact with the heat-generating member 50. By insulating the outer surface 61a, even if static electricity is generated between the heat-generating member 50 and the housing 40, the heat pipe 60 can be prevented from being affected by the static electricity. For example, the heat pipe 60 can be prevented from being affected by the static electricity generated between the heat-generating member 50 and the housing 40.

[0081] By insulating the outer surface of the heat pipe 60, there is no need to place a separate insulating member between the outer surface of the heat pipe 60 in the direction D1 and the inner surface 42 of the housing 40, and between the outer surface of the heat pipe 60 in the direction D1 and the outer surface of the heat-generating member 50. Since there is no need to place a separate insulating member, the human-powered vehicle component 30 can be made smaller and lighter.

[0082] 9 is fixed to the housing 40 by soldering. In this embodiment, at least the heat dissipation portion 63 of the heat pipe 60 is fixed to the housing 40 by soldering. When the heat pipe 60 is fixed to the housing 40 by soldering, a soldered portion S is formed between the outer surface of the heat pipe 60 in the D1 direction and the inner surface 42 of the housing 40. An insulating member L is arranged between the outer surface of the heat pipe 60 in the D1 direction and the outer surface of the heat-generating member 50.

[0083] By fixing the heat pipe 60 to the housing 40 by soldering, the thermal conductivity between the heat dissipation portion 63 of the heat pipe 60 and the housing 40 can be improved, so the human-powered vehicle component 30 has excellent heat dissipation properties.

[0084] (Second embodiment) A second embodiment of the part 30 for a human-powered vehicle will now be described. Figures 3 and 10 to 13 will be used to describe the part 30 for a human-powered vehicle of the second embodiment. The same reference numerals as in the first embodiment will be used to designate components that are common to the first embodiment, and redundant explanations will be omitted.

[0085] In this embodiment, the shape of the heat pipe 60 is different from that of the heat pipe 60 of the first embodiment. Fig. 10 is a view of the heat pipe 60 of this embodiment as viewed from the D3 direction. The heat pipe 60 of this embodiment shown in Fig. 10 is formed into an L-shape such that the middle portion of the container 61 of the first embodiment shown in Fig. 3 in the D2 direction is bent in the D1 direction. As shown in Fig. 10, the heat pipe 60 of this embodiment includes a first portion 71 that includes a heat input portion 62 and extends in a first direction, and a second portion 72 that includes a heat dissipation portion 63 and extends in a second direction different from the first direction.

[0086] At least one of the first portion 71 and the second portion 72 includes an intermediate portion 64. In this embodiment, the first portion 71 includes the intermediate portion 64. The first direction is the direction from the intermediate portion 64 toward the heat input portion 62 and the direction from the heat input portion 62 toward the intermediate portion 64. In this embodiment, the first direction is a direction parallel to the D2 direction. The second direction is the direction from the intermediate portion 64 toward the heat dissipation portion 63 and the direction from the heat dissipation portion 63 toward the intermediate portion 64. In this embodiment, the second direction is a direction perpendicular to the first direction. The second direction is a direction parallel to the D1 direction. The second direction is not limited to this embodiment as long as it is a direction that intersects with the first direction.

[0087] The first portion 71 is a portion to which heat is applied from the heat-generating member 50 at least in part. In this embodiment, the length of the first portion 71 along the D2 direction is longer than the length of the heat-generating member 50 along the D2 direction. The first portion 71 is in contact with the heat-generating member 50. In this embodiment, one side of the first portion 71 in the D2 direction is in contact with the heat-generating member 50. The heat input portion 62 is one side of the outer surface of the first portion 71 in the D2 direction. In this embodiment, the intermediate portion 64 is the side of the outer surface of the first portion 71 opposite to the heat input portion 62 in the D2 direction.

[0088] The second portion 72 is a portion that dissipates at least a portion of the heat applied to the heat input portion 62 to the outside of the heat pipe 60. The second portion 72 is continuous with the end of the first portion 71 on the side of the intermediate portion 64 in the D2 direction. The second portion 72 includes a second portion end face 72a and two second portion side faces 72b. The second portion end face 72a is a face facing the D1 direction. The second portion end face 72a is formed on the end of the second portion 72 opposite the first portion 71 in the D1 direction. The two second portion side faces 72b are faces facing the D2 direction. The two second portion side faces 72b are formed between the second portion end face 72a and the first portion 71. The area of each of the two second portion side faces 72b is larger than the area of the second portion end face 72a. The heat dissipation portion 63 is the entire outer surface of the second portion 72.

[0089] The inner surface 42 of the housing 40 includes two first inner surfaces 42a facing in the D2 direction and two second inner surfaces 42b facing in the D1 direction. The second portion 72 contacts the housing 40. In this embodiment, the entire area of one of the two second portion side surfaces 72b contacts one of the two first inner surfaces 42a. The heat dissipation portion 63 of the heat pipe 60 contacts the housing 40 by the entire area of one of the two second portion side surfaces 72b contacting one of the two first inner surfaces 42a.

[0090] By having the entire area of one of the two second partial side surfaces 72b in contact with one of the two first inner surfaces 42a, the contact area between the heat dissipation portion 63 of the heat pipe 60 and the housing 40 can be increased compared to when the second partial end surface 72a of the two second partial side surfaces 72b is in contact with one of the two second inner surfaces 42b. By increasing the contact area, the human-powered vehicle component 30 has excellent heat dissipation effectiveness. A configuration may also be used in which the entire area of one of the two second partial side surfaces 72b is in contact with one of the two first inner surfaces 42a, and the second partial end surface 72a is in contact with one of the two second inner surfaces 42b.

[0091] 11 and 12, another example of the arrangement of the heat pipe 60 will be described. The housing 40 shown in Fig. 11 has a recess 43. The recess 43 is formed in the second inner surface 42b so as to be recessed in the D1 direction.

[0092] At least a portion of the heat dissipation portion 63 of the heat pipe 60 is disposed in the recess 43. In this embodiment, the end of the second portion 72 on the second portion end face 72a side in the D1 direction is inserted into the recess 43, thereby disposing a portion of the heat dissipation portion 63 in the recess 43. Disposing at least a portion of the heat dissipation portion 63 in the recess 43 increases the contact area between the heat dissipation portion 63 of the heat pipe 60 and the housing 40, and therefore the human-powered vehicle component 30 has excellent heat dissipation effect.

[0093] The configuration of the recess 43 is not limited to the configuration shown in Fig. 11. The recess 43 may be formed, for example, in the first inner surface 42a so as to be recessed in the D2 direction. When the recess 43 is formed in the first inner surface 42a so as to be recessed in the D2 direction, one of the two second portion side surfaces 72b may be disposed within the recess 43.

[0094] The housing 40 shown in FIG. 12 has a through hole 44. The through hole 44 is formed to communicate between the internal space 41 of the housing 40 and the external space of the housing 40. In this embodiment, the through hole 44 is formed to penetrate the second inner surface 42b along the D1 direction. The second portion 72 of the heat pipe 60 is inserted through the through hole 44. By inserting the second portion 72 into the through hole 44, at least a portion of the heat dissipation portion 63 of the heat pipe 60 is disposed outside the housing 40 through the through hole 44. By disposing at least a portion of the heat dissipation portion 63 outside the housing 40, heat transported from the heat input portion 62 to the heat dissipation portion 63 can be efficiently released into the external space of the housing 40, thereby providing the human-powered vehicle component 30 with excellent heat dissipation efficiency.

[0095] The configuration of the through hole 44 is not limited to the configuration shown in Fig. 12. The through hole 44 may be formed, for example, to penetrate the first inner surface 42a along the D2 direction. When the through hole 44 is formed to penetrate the first inner surface 42a along the D2 direction, the first portion 71 may be inserted into the through hole 44. By inserting the first portion 71 into the through hole 44, the entire second portion 72 can be disposed outside the housing 40, and therefore, the heat transported from the heat input portion 62 to the heat dissipation portion 63 can be dissipated more efficiently.

[0096] (Third embodiment) A third embodiment of the part 30 for a human-powered vehicle will now be described. Fig. 13 is used to describe the part 30 for a human-powered vehicle of the third embodiment. Components common to the first and second embodiments are given the same reference numerals as in the first and second embodiments, and redundant description will be omitted.

[0097] In this embodiment, the shapes of the housing 40 and the heat pipe 60 are different from those of the housing 40 and the heat pipe 60 of the first embodiment. FIG. 13 shows a part of the housing 40. The heat-generating member 50 is not shown in FIG. 13. A protrusion 42c that protrudes into the internal space 41 is formed on the inner surface 42 of the housing 40. The protrusion 42c is formed in the shape of a rectangular parallelepiped extending along the D2 direction. The protrusion 42c may be formed, for example, by a component attached to the inner surface 42.

[0098] The heat pipe 60 is disposed near the protrusion 42c. If the heat pipe 60 is disposed near the protrusion 42c, the protrusion 42c may obstruct the placement of the heat pipe 60. Therefore, the heat pipe 60 of this embodiment has a shape with a notch 73 when viewed in a projected manner. In this embodiment, when viewed in a projected manner, the shape refers to the case where the shadow of the heat pipe 60 is projected onto a plane from a predetermined direction. When viewed in a projected manner, the shape with the notch 73 means that the outer edge of the shadow of the heat pipe 60 projected onto a plane from a predetermined direction has a partially recessed shape.

[0099] The predetermined direction is a direction in which the heat pipe 60 and the protrusion 42c do not overlap each other when viewed from the outside. The predetermined direction may be one of the thickness direction of the container 61, the longitudinal direction of the container 61, and the lateral direction of the container 61. In this embodiment, the predetermined direction is the thickness direction of the container 61. The thickness direction of the container 61 is a direction parallel to the D1 direction shown in FIG. 13.

[0100] The cutout portion 73 is formed in a shape that does not overlap with the protrusion 42c when the heat pipe 60 is viewed from a predetermined direction. In this embodiment, the cutout portion 73 is formed in a shape that does not overlap with the protrusion 42c when the heat pipe 60 is viewed from the D1 direction. In this embodiment, the cutout portion 73 is formed in a shape that resembles a notch at a corner of the heat pipe 60.

[0101] 13, the cutout portion 73 is formed in a shape similar to a cutout at a corner on the first end 61b side of the container 61. When the cutout portion 73 is formed at the corner on the first end 61b side, the maximum length ML is the length along the D2 direction from a portion of the first end 61b where the cutout portion 73 is not formed to the second end 61c.

[0102] The cutout portion 73 is formed in a rectangular shape extending in the D2 direction when viewed from the D1 direction. The length of the cutout portion 73 in the D2 direction is longer than the length of the protrusion 42c in the D2 direction. The protrusion 42c is disposed in the cutout portion 73.

[0103] The heat pipe 60 has the cutout portion 73, which increases the degree of freedom in arranging the heat pipe 60. For example, as shown in Fig. 13, the heat pipe 60 can be arranged so as to avoid the protrusion 42c.

[0104] The configuration of the cutout portion 73 is not limited to this embodiment. For example, the cutout portion 73 may be formed in a position different from that shown in FIG. 13 . For example, the cutout portion 73 may be formed at the second end 61c of the container 61. For example, the cutout portion 73 may be formed in the center of the container 61. The shape of the cutout portion 73 is not particularly limited. For example, the cutout portion 73 may be formed in a shape other than rectangular when viewed from the D1 direction.

[0105] The configuration of the protrusion 42c is not limited to this embodiment. For example, the protrusion 42c may be formed in a shape other than a rectangular parallelepiped. For example, the protrusion 42c may be formed on a member other than the housing 40. For example, the protrusion 42c may be formed on the outer surface of the heat-generating member 50. When the protrusion 42c is formed on the outer surface of the heat-generating member 50, the notch 73 may be formed in the heat input portion 62 of the heat pipe 60.

[0106] (Variation) The description of each embodiment is merely an example of a form that the present invention can take, and is not intended to limit the present invention. For example, the present invention can take the form of a modified example of each embodiment shown below, or a combination of at least two modified examples that are not mutually contradictory.

[0107] For example, the configuration of the human-powered vehicle part 30 in each embodiment is an example, and the human-powered vehicle part 30 may include various devices not shown in each embodiment, or may be configured not to include some of the various devices shown in each embodiment.

[0108] For example, instead of the heat pipe 60 in which heat is transported by self-excited vibration, the human-powered vehicle component 30 may include a heat pipe in which heat is transported by gravity from the heat dissipation section 63 to the heat input section 62. When heat is transported from the heat dissipation section 63 to the heat input section 62 by gravity, the heat dissipation section 63 is positioned above the heat input section 62 in the direction of gravity.

[0109] The configurations illustrated in the respective embodiments may be combined with each other to the extent that they are not mutually contradictory. For example, by combining the configuration illustrated in the second embodiment with the configuration illustrated in the third embodiment, the heat pipe 60 including the first portion 71 and the second portion 72 may have a shape having a notch 73 when viewed in a projected manner.

[0110] The present disclosure can also be applied to fishing equipment. The fishing equipment may include at least one of an electric reel, a rod, and a lure. The heat-generating components of the fishing equipment may include at least one of a circuit component and a brake component. The circuit component of the fishing equipment may include at least one of a printed circuit board, an IC, a transistor, a capacitor, a resistor, a converter, a coil, a diode, a sensor, a motor, and a battery, for example. The brake component of the fishing equipment may include, for example, a component that constitutes a braking mechanism that applies a braking force to a reel spool. Applying the present disclosure to fishing equipment improves the heat dissipation performance of the fishing equipment.

[0111] The phrase "at least one" as used herein means "one or more" of the desired options. As an example, the phrase "at least one" as used herein means "only one option" or "both of two options" when the number of options is two. As another example, the phrase "at least one" as used herein means "only one option" or "any combination of two or more options" when the number of options is three or more. [Explanation of symbols]

[0112] 1...human-powered vehicle, 10c...pedal, 12...saddle, 12a...seat post, 13...handle, 15a...front wheel, 15b...rear wheel, 15c, 15d...disc brake rotor, 16...front hub assembly, 17...rear hub assembly, 18d...front sprocket assembly, 18e...rear sprocket assembly, 19a...front derailleur, 19b...rear derailleur, 20...shifting operation device, 21a ...Disc brake device, 22...Brake operating device, 23a...Front suspension, 24...Battery mount, 25...Battery, 26...Cycle computer, 40...Housing, 43...Recess, 50...Heat generating member, 60...Heat pipe, 62...Heat input portion, 63...Heat dissipation portion, 65...Flow path, 65a...Contact surface, 65c...First flow path, 65d...Second flow path, 72...First portion, 72...Second portion, 73...Notch portion, ML...Maximum length

Claims

1. Housing and a heat pipe at least partially disposed within the housing, the heat pipe including a heat input portion, a heat dissipation portion, a flow path extending at least between the heat input portion and the heat dissipation portion, and a fluid filled within the flow path; a heat generating member disposed in the housing near the preheating portion of the heat pipe, the flow path of the heat pipe has a contact surface that comes into contact with the fluid; A part for a human-powered vehicle or a fishing implement, wherein the contact surface of the flow path is subjected to a water-repellent treatment.

2. 2. The part for a human-powered vehicle or a fishing implement according to claim 1, wherein the filling rate of the fluid in the heat pipe is 30% by volume or less.

3. 3. The part for a human-powered vehicle or a fishing implement according to claim 2, wherein the filling rate is 5 to 10 vol. %.

4. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe has an outer surface, and the outer surface is subjected to an insulating treatment.

5. 5. The part for a human-powered vehicle or a fishing implement according to claim 4, wherein the insulating treatment is anodizing.

6. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe is fixed to the housing by soldering.

7. the housing has a recess; The part for a human-powered vehicle or fishing equipment according to claim 1 , wherein at least a portion of the heat dissipation portion of the heat pipe is disposed in the recess.

8. The housing has a through hole, 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein at least a portion of the heat dissipation portion of the heat pipe is disposed outside the housing through the through hole.

9. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the preheated portion of the heat pipe is in contact with the heat-generating member.

10. The part for a human-powered vehicle or fishing equipment according to claim 1 , wherein the heat dissipation portion of the heat pipe is in contact with the housing.

11. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe and the heat-generating component are arranged in the housing so as to be in contact with each other, and further comprising a resin sealant filled in the space between the heat pipe and the heat-generating component and the housing.

12. The heat pipe is a first portion including the heat input portion and extending in a first direction; a second portion including the heat dissipation portion and extending in a second direction different from the first direction; 2. The part for a human-powered vehicle or fishing equipment according to claim 1, comprising:

13. the first portion is in contact with the heat generating member, the second portion contacts the housing; 13. A part for a human-powered vehicle or a fishing implement according to claim 12.

14. 2. The part for a human-powered vehicle or a fishing implement according to claim 1, wherein the water-repellent treatment is an alumite treatment or a boehmite treatment.

15. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the flow paths of the heat pipe include a plurality of first flow paths extending in a first flow path direction and at least one second flow path extending in a second flow path direction intersecting the first flow path direction and connecting the plurality of first flow paths.

16. 16. The human-powered vehicle component or fishing equipment according to claim 15, wherein the at least one second flow path includes a plurality of second flow paths.

17. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe has a shape with a notch when viewed in a projected view.

18. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe is a self-regenerating bridge-type heat pipe.

19. 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the heat pipe has a maximum length, and the maximum length is 60 mm or less.

20. The human-powered vehicle parts include at least one of a crank arm assembly, a front sprocket assembly, a rear sprocket assembly, a front hub assembly, a rear hub assembly, a rim brake device, a disc brake device, a disc brake rotor, a brake operating device, a front derailleur, a rear derailleur, a gear shift operating device, a front wheel, a rear wheel, a front suspension, a rear suspension, a seat post, an electric drive unit, a battery, a battery mount, a battery charger, a cycle computer, a drive unit operating device, pedals, a handlebar, a saddle, and a mudguard, 2. The part for a human-powered vehicle or fishing equipment according to claim 1, wherein the fishing equipment includes at least one of an electric reel, a rod, and a lure.

Images