CN220545360U - Radiator, motor controller and vehicle - Google Patents

Abstract

The utility model discloses a radiator, a motor controller and a vehicle, wherein the radiator comprises: the shell, be equipped with the heat transfer runner that is used for circulating heat transfer medium in the shell, in the extending direction of heat transfer runner, the flow area of at least a part of heat transfer runner increases gradually. According to the radiator disclosed by the utility model, more heat exchange media can be distributed at the downstream position of at least one part of the heat exchange flow channels, so that when the heat exchange media flow through the heat exchange flow channels, the heat exchange capability of the heat exchange media and the parts to be radiated is gradually enhanced, so that the heat exchange media can realize uniform heat exchange of the parts to be radiated when flowing through the heat exchange flow channels, the problems of over-temperature damage or larger temperature difference of the parts to be radiated close to the liquid outlet are avoided, and the radiating effect of the radiator is more balanced.

Description

Radiator, motor controller and vehicle

Technical Field

The utility model relates to the technical field of motor controllers, in particular to a radiator, a motor controller and a vehicle.

Background

The motor controller mainly comprises a power module and a heat dissipation part, wherein the power module is used for controlling the driving motor and the generator, the power module is used for being installed on the heat radiator as the heat dissipation part, and the temperature of a heat exchange medium in the heat radiator can gradually rise along a flow path of the heat exchange medium when flowing, so that the heat exchange capacity between the heat exchange medium close to a liquid outlet position and the heat dissipation part is poor, namely the heat dissipation effect of the heat dissipation part is unbalanced, and the heat dissipation part is further caused to have the problem of large temperature difference or over-temperature damage.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the radiator which can realize uniform heat exchange of the part to be radiated so as to avoid the problems of over-temperature damage or larger temperature difference of the part to be radiated close to the liquid outlet, and further ensure that the radiating effect of the radiator is more balanced.

According to an embodiment of the present utility model, a heat sink includes: the shell, be equipped with the heat transfer runner that is used for circulating heat transfer medium in the shell, in the extending direction of heat transfer runner, the flow area of at least a part of heat transfer runner increases gradually.

According to the radiator disclosed by the embodiment of the utility model, the flow area of at least one part of the heat exchange flow channel is gradually increased in the extending direction of the heat exchange flow channel, so that more heat exchange medium can be distributed at the downstream position of at least one part of the heat exchange flow channel, and when the heat exchange medium flows through the heat exchange flow channel, the heat exchange capacity of the heat exchange medium and the heat exchange capacity of the heat exchange medium to be cooled piece are gradually enhanced, so that the heat exchange medium can realize uniform heat exchange of the heat exchange medium to be cooled piece when flowing through the heat exchange flow channel, and the problem that the heat exchange damage to the heat exchange piece to be cooled close to the liquid outlet or the temperature difference is large is avoided, and the heat dissipation effect of the radiator is more balanced.

According to some embodiments of the utility model, the shell is provided with a liquid inlet and a liquid outlet which are communicated with the heat exchange flow channel; in the direction from the liquid inlet to the liquid outlet, the flow area of at least one part of the heat exchange flow channel is gradually increased.

According to some embodiments of the utility model, the heat exchange flow channel has a first surface and a second surface disposed opposite to each other, and the second surface extends gradually and obliquely toward a direction away from the first surface in an extending direction of the heat exchange flow channel.

According to some embodiments of the utility model, a heat conducting member is disposed in the housing, and the heat conducting member extends into the heat exchanging flow channel.

According to some embodiments of the utility model, the housing is provided with a mounting surface for mounting a member to be cooled, and the heat conducting member is disposed opposite to the mounting surface.

According to the radiator of some embodiments of the present utility model, the plurality of heat conducting members are distributed at intervals in the extending direction of the heat exchanging flow channel.

According to the radiator of some embodiments of the present utility model, the heat exchange areas of the plurality of heat conducting members gradually increase in the extending direction of the heat exchange flow channel.

According to the radiator of some embodiments of the present utility model, the heights of the plurality of heat conductive members gradually increase in the extending direction of the heat exchanging flow path.

According to the radiator of some embodiments of the present utility model, in the extending direction of the heat exchange flow channel, the plurality of heat conducting members are distributed into a plurality of sub-areas, each of the sub-areas is provided with a plurality of heat conducting members, and the densities of the heat conducting members of the plurality of sub-areas are gradually increased.

According to some embodiments of the utility model, the housing includes a case having a receiving groove formed therein for receiving the heat exchange medium, and an upper cover for closing the receiving groove to define the heat exchange flow passage.

According to the radiator of some embodiments of the present utility model, in the extending direction of the heat exchange flow channel, a plurality of accommodating grooves which are mutually communicated are provided in the box body, each accommodating groove is correspondingly provided with the upper cover, and the upper cover is provided with a mounting surface for mounting a piece to be radiated.

The utility model also provides a motor controller.

According to an embodiment of the present utility model, a motor controller includes: a power module and a heat sink according to any of the above embodiments, the power module being mounted to the housing.

The utility model further provides a vehicle.

According to an embodiment of the present utility model, a vehicle includes: the motor controller described in the above embodiment.

The vehicle, the motor controller and the radiator have the same advantages as compared with the prior art, and are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of a heat sink according to some embodiments of the utility model;

FIG. 2 is a cross-sectional view of the heat sink shown in FIG. 1;

FIG. 3 is an exploded view of the heat sink shown in FIG. 1;

FIG. 4 is a schematic view of a housing of the heat sink shown in FIG. 3;

FIG. 5 is a schematic view of the upper cover of the heat sink shown in FIG. 3;

FIG. 6 is a schematic view of the upper cover shown in FIG. 5 from another perspective;

FIG. 7 is a schematic diagram of a motor controller according to some embodiments of the utility model;

FIG. 8 is an exploded view of the motor controller shown in FIG. 7;

FIG. 9 is a cross-sectional view of the motor controller shown in FIG. 7;

fig. 10 is a schematic illustration of a vehicle according to some embodiments of the utility model.

Reference numerals:

a vehicle 1000;

a motor controller 100;

a heat sink 10, a power module 20;

a housing 1, a case 11, a housing groove 111, and an upper cover 12;

liquid inlet pipe 101, liquid outlet pipe 102, mounting surface 103, liquid inlet 104, liquid outlet 105, direction X from liquid inlet to liquid outlet;

the heat exchange flow channel 2, the first surface 21, the second surface 22 and the boss 23;

a heat conducting member 3, a sub-region 4.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

A heat sink 10 according to an embodiment of the present utility model is described below with reference to fig. 1-10.

As shown in fig. 1 to 3, a heat sink 10 implemented according to the present utility model includes: a housing 1.

Specifically, as shown in fig. 2, a heat exchange flow passage 2 for circulating a heat exchange medium is provided in the housing 1, and the flow area of at least a part of the heat exchange flow passage 2 gradually increases in the extending direction of the heat exchange flow passage 2.

The "flow area" refers to the cross-sectional area of the heat exchange flow channel 2, and the larger the cross-sectional area of the heat exchange flow channel 2 is, the more heat exchange medium can pass through in unit time, namely the stronger the heat exchange capacity is. For example, the heat exchange flow path 2 may be rectangular in shape, and the flow area may be a cross-sectional area perpendicular to the longitudinal direction thereof, or the heat exchange flow path 2 may be cylindrical in shape, and the flow area may be a radial cross-sectional area thereof, although the shape of the heat exchange flow path 2 is merely illustrative of the flow area in the above description, and the present utility model is not limited thereto.

The "extending direction of the heat exchange flow channel 2" refers to a flow direction of the heat exchange medium, i.e., a direction from an upstream position to a downstream position of the heat exchange flow channel 2 when the heat exchange medium flows, for example, when the heat exchange flow channel has the liquid inlet 104 and the liquid outlet 105, the extending direction of the heat exchange flow channel 2 refers to a direction from the liquid inlet 104 to the liquid outlet 105.

The "the flow area of at least a portion of the heat exchange flow channel 2 gradually increases" includes, but is not limited to, in the extending direction of the heat exchange flow channel 2, the flow area of a portion of the heat exchange flow channel 2 gradually increases, or in the extending direction of the heat exchange flow channel 2, the flow area of the entire heat exchange flow channel 2 gradually increases, or in the extending direction of the heat exchange flow channel 2, the heat exchange flow channel 2 may be divided into a plurality of communicating segments, and the flow area of at least two segments of the heat exchange flow channel 2 gradually increases, etc.

Therefore, in the extending direction of the heat exchange flow channel 2, the flow area of at least a part of the heat exchange flow channel 2 is gradually increased, so that more heat exchange medium can be distributed at the downstream position of at least a part of the heat exchange flow channel 2, when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity of the heat exchange medium to the heat piece to be cooled installed on the shell is gradually enhanced, so that the heat exchange medium can realize uniform heat exchange to the heat piece to be cooled when flowing through at least a part of the heat exchange flow channel 2, the problem that the heat piece to be cooled at the downstream position of at least a part of the heat exchange flow channel 2 is damaged due to over-temperature or has a larger temperature difference is avoided, and the heat dissipation effect of the radiator 10 is more balanced.

Therefore, more heat exchange medium can be distributed at the downstream position of at least one part of the heat exchange flow channel 2, so that when the heat exchange medium flows through at least one part of the heat exchange flow channel 2, the heat exchange capacity of the heat exchange medium to the heat dissipation part to be mounted on the shell is gradually enhanced, the heat exchange medium can realize uniform heat exchange to the heat dissipation part when flowing through at least one part of the heat exchange flow channel 2, the problem that the heat dissipation part close to the downstream position of the heat exchange flow channel 2 is damaged due to over-temperature or has larger temperature difference is avoided, and the heat dissipation effect of the heat radiator 10 is more balanced.

For example, as shown in fig. 1, the radiator 10 includes a housing 1, and as shown in fig. 2, a heat exchange flow passage 2 is provided in the housing 1, and a member to be radiated may be mounted on the housing 1.

The casing 1 can exchange heat with a heat exchange medium, and the part to be cooled can be a power module 20, a control chip, or other components and parts, etc., and the part to be cooled can be attached to the casing 1, so that heat of the part to be cooled can be transferred to the casing 1, and when the heat exchange medium circulates in the heat exchange flow channel 2, the heat exchange medium can exchange heat with the part to be cooled through heat exchange with the casing 1. In some other embodiments, the member to be cooled may be clamped to the housing 1, etc., and of course, the member to be cooled may be mounted to the housing 1 in other manners, which is not limited herein.

Further, a heat exchange medium flows through the heat exchange flow channel 2, wherein the heat exchange medium can be used for exchanging heat with a piece to be cooled. "heat exchange" includes heating or heat dissipation, as described herein in terms of heat dissipation.

For example, the heat exchange medium may be in a gaseous state or a liquid state, for example, the heat exchange medium is a cooling liquid or the like, so that the heat exchange medium may flow along the heat exchange flow channel 2, and thus, when the heat exchange medium flows in the heat exchange flow channel 2, the heat exchange medium exchanges heat with the member to be cooled through the mounting surface 103 to reduce the temperature of the member to be cooled.

Further, in the extending direction of the heat exchange flow passage 2 (for example, the left-to-right direction in fig. 2), the flow area of at least a part of the heat exchange flow passage 2 gradually increases. In this way, at least a portion of the downstream location of the heat exchange flow channel 2 is enabled to be allocated to more heat exchange medium, i.e. at least a portion of the downstream location of the heat exchange flow channel 2 has a smaller amount of heat exchange medium than at least a portion of the upstream location of the heat exchange flow channel 2, such that the heat exchange medium within the heat exchange flow channel 2 gradually increases in the direction of flow of the heat exchange medium. The more the heat exchange medium is, the more heat exchange capacity is.

Like this, make the heat transfer ability of heat transfer medium can strengthen gradually in the extending direction of at least partly heat transfer runner 2 to when heat transfer medium flows through at least partly heat transfer runner 2, heat transfer medium and wait the heat transfer ability of heat dissipation piece strengthen gradually, in order to alleviate the temperature lifting of heat transfer medium on its flow path, so that heat transfer medium can realize even heat transfer to wait the heat dissipation piece when flowing through at least partly heat transfer runner 2, in order to avoid waiting that the heat dissipation piece to appear that is close to liquid outlet 105 to overtemperature damage, or the great problem of difference in temperature, and then make the radiating effect of radiator 10 more balanced.

It should be noted that, in the related art, the heat dissipation member is the power module 20, the heat exchange flow channels 2 of the heat sink 10 are usually connected in series, but the heat dissipation member 10 does not take into consideration the temperature inconsistency of the heat exchange medium, so that when the heat exchange medium flows in the heat exchange flow channels 2, the heat exchange medium becomes higher and higher in temperature on the path, i.e. the heat exchange capability thereof gradually decreases, so that the heat of the heat dissipation member is accumulated, and thus the heat dissipation condition of the heat dissipation member near the upstream position of the heat exchange flow channels 2 is easily caused, and the heat dissipation of the heat dissipation member far from the upstream position (near the downstream position) of the heat exchange flow channels 2 is poor, which causes the problem that the heat dissipation member has over temperature or larger temperature difference, and restricts the overall output current of the heat dissipation member.

In the utility model, the flow area of at least one part of the heat exchange flow channel 2 is gradually increased in the extending direction of the heat exchange flow channel 2, so that when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange medium in at least one part of the heat exchange flow channel 2 is gradually increased in the extending direction of the heat exchange flow channel 2, namely the heat exchange capacity of the heat exchange medium can be gradually increased in the extending direction of at least one part of the heat exchange flow channel 2, so that the heat exchange medium can realize uniform heat exchange of the heat to-be-cooled member when flowing through at least one part of the heat exchange flow channel 2, and the problems of over-temperature damage or larger temperature difference of the heat to-be-cooled member at the downstream position close to the heat exchange flow channel 2 are avoided, and the whole output current of the heat to-be-cooled member is ensured.

According to the radiator 10 of the embodiment of the utility model, the flow area of at least a part of the heat exchange flow channels 2 is gradually increased in the extending direction of the heat exchange flow channels 2, so that more heat exchange medium can be distributed at the downstream position of at least a part of the heat exchange flow channels 2, and when the heat exchange medium flows through at least a part of the heat exchange flow channels 2, the heat exchange capacity of the heat exchange medium and the heat to-be-radiated parts is gradually increased, so that the heat exchange medium can realize uniform heat exchange on the to-be-radiated parts when flowing through the heat exchange flow channels 2, and the problem that the to-be-radiated parts close to the liquid outlet 105 are damaged due to over temperature or have larger temperature difference is avoided, and the heat radiation effect of the radiator 10 is more balanced.

In some embodiments, the housing 1 is provided with a liquid inlet 104 and a liquid outlet 105 which are communicated with the heat exchange flow channel 2; in the direction X from the liquid inlet 104 to the liquid outlet 105, the flow area of at least a part of the heat exchange flow passage 2 gradually increases.

For example, as shown in fig. 1, the radiator 10 includes a housing 1, and as shown in fig. 2, a liquid inlet 104, a heat exchange flow channel 2 and a liquid outlet 105 are disposed in the housing 1, the liquid inlet 104 and the liquid outlet 105 are both communicated with the heat exchange flow channel 2, and a member to be radiated can be installed on the housing 1. Wherein, inlet 104 is the upstream position with respect to outlet 105, prevents outlet 105 from being the downstream position.

Illustratively, as shown in fig. 1, the casing 1 is further provided with a liquid inlet pipe 101 and a liquid outlet pipe 102, the liquid inlet pipe 101 and the liquid outlet pipe 102 are both installed on the casing 1, and as shown in fig. 2, the liquid inlet pipe 101 and the liquid outlet pipe 102 are respectively communicated with a liquid inlet 104 and a liquid outlet 105, so as to reduce liquid inlet and liquid outlet difficulty.

Further, in the direction X from the liquid inlet 104 to the liquid outlet 105 (i.e., the direction from the left side to the right side in fig. 2), the flow area of at least a portion of the heat exchange flow channels 2 gradually increases. In this way, at least a part of the heat exchange flow channel 2 is distributed with more heat exchange medium near the liquid outlet 105, that is, the amount of the heat exchange medium near the liquid inlet 104 is smaller than the amount of the heat exchange medium near the liquid outlet 105, so that the heat exchange medium in the heat exchange flow channel 2 gradually increases in the direction X from the liquid inlet 104 to the liquid outlet 105. The more the heat exchange medium is, the more heat exchange capacity is.

Like this for the heat transfer ability of heat transfer medium can be in the direction X of inlet 104 to liquid outlet 105 strengthen gradually, thereby when heat transfer medium flows through heat transfer runner 2, heat transfer medium and wait the heat transfer ability of heat dissipation piece strengthen gradually, in order to alleviate the temperature lifting of heat transfer medium on its flow path, so that heat transfer medium can be when flowing through heat transfer runner 2 wait the heat dissipation piece and realize even heat transfer, in order to avoid waiting that the heat dissipation piece that is close to liquid outlet 105 to appear overtemperature damage, or the great problem of difference in temperature, and then make the radiating effect of radiator 10 more balanced.

Therefore, the flow area of the heat exchange flow channel 2 is gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105, so that more heat exchange media can be distributed at the position, close to the liquid outlet 105, in the heat exchange flow channel 2, and when the heat exchange media flow through the heat exchange flow channel 2, the heat exchange capacity of the heat exchange media and the heat dissipation part to be cooled is gradually enhanced, so that the heat exchange media can realize uniform heat exchange on the heat dissipation part to be cooled when flowing through the heat exchange flow channel 2, the problem that the heat dissipation part to be cooled, close to the liquid outlet 105, is damaged by over temperature or has a large temperature difference is avoided, and the heat dissipation effect of the radiator 10 is more balanced.

In some embodiments, as shown in fig. 2, the heat exchange flow channel 2 has a first surface 21 and a second surface 22 disposed opposite to each other, and the second surface 22 extends gradually and obliquely in a direction away from the first surface 21 in the extending direction of the heat exchange flow channel 2 (i.e., in a direction X from the liquid inlet 104 to the liquid outlet 105).

It should be noted that, when other conditions are unchanged, the distance between the first surface 21 and the second surface 22 is a factor that determines the flow area of the heat exchange flow channel 2, so that the larger the distance between the first surface 21 and the second surface 22, the larger the flow area of the heat exchange flow channel 2, and vice versa.

Therefore, the second surface 22 gradually extends in a slope manner towards the direction away from the first surface 21, so that the distance between the second surface 22 and the first surface 21 is gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105, the flow area of the heat exchange flow channel 2 is gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105, when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity of the heat exchange medium and the heat exchange part to be cooled is gradually increased, and even heat exchange can be realized on the heat exchange medium to be cooled when the heat exchange medium flows through the heat exchange flow channel 2, so that the problem that the heat exchange part to be cooled close to the liquid outlet 105 is damaged due to over temperature or has larger temperature difference is avoided.

In some embodiments, as shown in fig. 2, the housing 1 is provided with a mounting surface 103 for mounting a member to be cooled, the housing 1 is provided with a heat conducting member 3 therein, and the heat conducting member 3 is disposed opposite to the mounting surface 103 and extends into the heat exchange flow channel 2.

By "the heat conductive member 3 is disposed opposite to the mounting surface 103" is meant that the heat conductive member 3 is disposed on a side of the mounting surface 103 facing away from the member to be heat-dissipated. Thus, by providing the heat conducting member 3, the heat conducting member 3 is disposed opposite to the mounting surface 103, for example, the heat conducting member 3 is disposed on the first surface 21, and the heat conducting member 3 extends in a direction perpendicular to the mounting surface 103. Like this, heat conduction spare 3 can with installation face 103 heat transfer realization with wait the heat dissipation spare to when heat transfer medium flows in heat transfer runner 2, heat transfer medium can realize with wait the heat dissipation spare through the heat transfer with heat conduction spare 3, and because heat conduction spare 3 stretches into in the heat transfer runner 2, in order to increase the heat transfer area of heat transfer medium and heat conduction spare 3, and then increase the heat transfer area of heat transfer medium and wait the heat dissipation spare, in order to improve heat exchange efficiency.

For example, as shown in fig. 2, the heat conducting member 3 is disposed on the first surface 21, the second surface 22 is located on a side (e.g. a lower side in fig. 2) of the first surface 21 facing away from the mounting surface 103, and a certain gap is formed between an end of the heat conducting member 3 facing away from the mounting surface 103 and the second surface 22, so as to ensure that the heat exchange medium can flow in the heat exchange flow channel 2, and avoid blocking of the heat exchange medium.

Illustratively, the heat conductive member 3 may be configured as a heat conductive fin, and the cross section of the heat conductive fin may be configured as a cylindrical shape, or an elliptical cylindrical shape, which is not limited herein.

It should be noted that, since the first surface 21 and the mounting surface 103 are two surfaces disposed opposite to each other, and the distance (thickness) between the first surface 21 and the mounting surface 103 affects the heat exchange effect of the heat exchange medium and the heat dissipation member, the second surface 22 extends gradually and obliquely in a direction away from the first surface 21, so that the flow area of the heat exchange flow channel 2 is gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105 while the heat exchange medium and the heat dissipation member are ensured to sufficiently exchange heat, so that the heat exchange medium can realize uniform heat exchange on the heat dissipation member when flowing through the heat exchange flow channel 2, so as to avoid the problem that the heat dissipation member close to the liquid outlet 105 is damaged due to excessive temperature or has a large temperature difference, and further make the heat dissipation effect of the heat dissipation member 10 more uniform.

For example, as shown in fig. 3, a boss 23 is disposed in the heat exchange flow channel 2, a side of the boss 23 facing the first surface 21 is formed into a second surface 22, and an upper surface of the side of the boss 23 facing the first surface 21 extends gradually and obliquely in a direction away from the first surface 21, so that the flow area of the heat exchange flow channel 2 can be gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105 by separately disposing the inclined boss 23, so as to reduce the difficulty in realizing the gradual increase of the flow area of the heat exchange flow channel 2 in the direction X from the liquid inlet 104 to the liquid outlet 105.

The boss 23 may be integrally formed with the housing 1, so as to simplify the assembly process and assembly difficulty, and of course, in some other embodiments, the boss 23 may be separately installed in the heat exchange flow channel 2, so that the boss 23 may be separately designed according to requirements, so as to expand the application range of the radiator 10.

In some embodiments, as shown in fig. 2, the heat conducting members 3 are plural, and the plural heat conducting members 3 are distributed at intervals in the extending direction of the heat exchanging flow path 2.

Therefore, the plurality of heat conducting pieces 3 are distributed at intervals in the extending direction of the heat exchange flow channel 2, so that when a heat exchange medium flows in the heat exchange flow channel 2, the heat exchange with the plurality of heat conducting pieces 3 can be realized, and the heat exchange of the heat dissipation piece to be subjected to heat exchange can be realized.

In some embodiments, the heat exchange area of the plurality of heat conducting members 3 gradually increases in the extending direction of the heat exchange flow passage 2.

The larger the heat exchange area of the heat conductive member 3 is, the stronger the heat exchange capacity is, and the higher the heat exchange efficiency is.

The heat exchange areas of the plurality of heat conducting pieces 3 are gradually increased in the extending direction of the heat exchange flow channel 2, so that the heat exchange capacity of the heat conducting pieces 3 and the heat exchange medium is gradually increased and the heat exchange efficiency is gradually improved in the extending direction of the heat exchange flow channel 2, namely the heat exchange capacity of the heat exchange medium and the heat exchange capacity of the heat exchange medium to be cooled is gradually increased.

That is, in the extending direction of the heat exchanging flow channel 2, the heat exchanging area of the heat conducting member 3 is proportional to the flow area of the heat exchanging flow channel 2, so that the position with the smaller flow area can correspond to the heat conducting member 3 with the smaller flow area, and the position with the larger flow area can correspond to the heat conducting member 3 with the larger flow area, thus, the heat exchanging medium at the position with the larger flow area and the heat conducting member 3 with the larger flow area can exchange heat sufficiently, so as to improve the heat exchanging efficiency.

Therefore, when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity and the heat exchange efficiency of the heat exchange medium and the heat dissipation part to be cooled are gradually enhanced, so that the heat exchange medium can realize uniform heat exchange for the heat dissipation part to be cooled when flowing through the heat exchange flow channel 2, the problem that the heat dissipation part to be cooled close to the liquid outlet 105 is damaged due to over-temperature or has a large temperature difference is avoided, and the heat dissipation effect of the radiator 10 is more balanced.

The heat exchange area of the heat conducting member 3 may be understood as an area of an outer surface of the heat conducting member 3, and the heat exchange area of the heat conducting member 3 may be gradually increased, that is, the area of the outer surface may be gradually increased, and specific implementations thereof include, but are not limited to, increasing the height or width of the heat conducting member 3, or providing different numbers of inclined surfaces or cambered surfaces on the outer surface of the heat conducting member 3, and the like.

In some embodiments, as shown in fig. 2 and 5, the plurality of heat conductive members 3 gradually increase in height in the extending direction of the heat exchange flow passage 2.

When the other dimensional information of the heat conductive member 3 is the same, the larger the height of the heat conductive member 3 is, the higher the heat exchanging capability is, and the higher the efficiency is.

The height of the heat conducting piece 3 is gradually increased in the extending direction of the heat exchanging flow channel 2, so that the heat exchanging capacity of the heat conducting piece 3 and the heat exchanging medium is gradually increased and the heat exchanging efficiency is gradually improved in the extending direction of the heat exchanging flow channel 2, namely the heat exchanging capacity of the heat exchanging medium and the heat exchanging piece to be cooled is gradually increased.

That is, in the extending direction of the heat exchange flow passage 2, the height of the heat conducting member 3 is proportional to the flow area of the heat exchange flow passage 2, so that the position with the smaller flow area can correspond to the heat conducting member 3 with the lower height, and the position with the larger flow area can correspond to the heat conducting member 3 with the higher height, thus the heat exchange medium at the position with the larger flow area and the heat conducting member 3 with the higher height can exchange heat sufficiently to improve the heat exchange efficiency.

Therefore, when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity and the heat exchange efficiency of the heat exchange medium and the heat dissipation part to be cooled are gradually enhanced, so that the heat exchange medium can realize uniform heat exchange for the heat dissipation part to be cooled when flowing through the heat exchange flow channel 2, the problem that the heat dissipation part to be cooled close to the liquid outlet 105 is damaged due to over-temperature or has a large temperature difference is avoided, and the heat dissipation effect of the radiator 10 is more balanced.

In some embodiments, as shown in fig. 6, in the extending direction of the heat exchange flow channel 2, the plurality of heat conducting members 3 are distributed into a plurality of sub-areas 4, each sub-area 4 is provided with a plurality of heat conducting members 3, and the densities of the heat conducting members 3 of the plurality of sub-areas 4 are gradually increased.

The "density of the heat conductive members 3 of the plurality of sub-areas 4" includes, but is not limited to, the number of the heat conductive members 3 of the sub-areas 4 having the same area being different, that is, the greater the number of the heat conductive members 3, the greater the density, and the lesser the number of the heat conductive members 3, the lesser the density, when the areas of the plurality of sub-areas 4 are the same.

When the other dimensional information of the heat conductive member 3 is the same, the higher the density of the heat conductive member 3, the higher the heat exchanging capability and the higher the efficiency.

The density of the heat conducting piece 3 is gradually increased in the extending direction of the heat exchanging flow channel 2, so that the heat exchanging capacity of the heat conducting piece 3 and the heat exchanging medium is gradually increased and the heat exchanging efficiency is gradually improved in the extending direction of the heat exchanging flow channel 2, namely the heat exchanging capacity of the heat exchanging medium and the heat exchanging piece to be cooled is gradually increased.

That is, in the extending direction of the heat exchange flow channel 2, the density of the heat conducting member 3 is proportional to the flow area of the heat exchange flow channel 2, so that the position with the smaller flow area can be corresponding to the heat conducting member 3 with the lower density, and the position with the larger flow area can be corresponding to the heat conducting member 3 with the higher density, thus, the heat exchange medium at the position with the larger flow area and the heat conducting member 3 with the higher density can exchange heat sufficiently, so as to improve the heat exchange efficiency.

Therefore, when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity and the heat exchange efficiency of the heat exchange medium and the heat dissipation part to be cooled are gradually enhanced, so that the heat exchange medium can realize uniform heat exchange for the heat dissipation part to be cooled when flowing through the heat exchange flow channel 2, the problem that the heat dissipation part to be cooled close to the liquid outlet 105 is damaged due to over-temperature or has a large temperature difference is avoided, and the heat dissipation effect of the radiator 10 is more balanced.

In some embodiments, as shown in fig. 1-3, the housing 1 includes a case 11 and an upper cover 12.

As shown in fig. 4, a receiving groove 111 for receiving a heat exchange medium is formed in the case 11, and an upper cover 12 is provided to cover the receiving groove 111 to define the heat exchange flow path 2.

Therefore, the upper cover 12 and the accommodating groove 111 are arranged to be used for defining the heat exchange flow channel 2, and the upper cover 12 can be used for blocking or opening the accommodating groove 111 so as to conveniently open or close the heat exchange flow channel 2 through the upper cover 12, and further, the structure in the heat exchange flow channel 2 can be conveniently adjusted.

In some embodiments, as shown in fig. 2, in the extending direction of the heat exchange flow channel 2, a plurality of receiving grooves 111 communicating with each other are provided in the case 11, each receiving groove 111 is provided with an upper cover 12, and the upper cover 12 is provided with a mounting surface 103 for mounting a member to be heat-dissipated.

Thus, each accommodating groove 111 is correspondingly provided with the upper cover 12, so as to form a plurality of heat exchange flow channels 2 which are mutually communicated, namely, a plurality of heat exchange flow channels 2 are connected in series, and each heat exchange flow channel 2 can realize the heat exchange effect of the heat dissipation part in any embodiment. In this way, it is convenient to set a plurality of heat dissipation parts on the heat sink 10, so that the plurality of heat dissipation parts are integrated on the same heat sink 10, so as to save installation space.

As shown in fig. 7-9, the present utility model also proposes a motor controller 100.

The motor controller 100 according to the embodiment of the present utility model includes: the power module 20 and the heat sink 10 of any of the above embodiments, the power module 20 is mounted to the housing 1.

The power module 20 is mounted on the mounting surface 103 in a fitting manner, so that more heat exchange media can be distributed at a position, close to the liquid outlet 105, in the heat exchange flow channel 2, and when the heat exchange media flow through the heat exchange flow channel 2, the heat exchange capability of the heat exchange media and the heat dissipation parts to be subjected to heat exchange is gradually enhanced, so that the heat exchange media can realize uniform heat exchange of the heat dissipation parts to be subjected to heat exchange when flowing through the heat exchange flow channel 2, and the problems of over-temperature damage or larger temperature difference of the heat dissipation parts to be subjected to heat dissipation, close to the liquid outlet 105, are avoided, and further the heat dissipation effect of the radiator 10 is more balanced.

A motor controller 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 9.

As shown in fig. 7 to 9, the motor controller 100 includes: a power module 20 and a heat sink 10.

As shown in fig. 1, the heat sink 10 is provided with a housing 1, and the housing 1 includes a case 11 and an upper cover 12. Wherein, as shown in fig. 4, two holding grooves 111 which are communicated with each other and open upwards are arranged in the box 11, as shown in fig. 3, two upper covers 12 are correspondingly arranged on the two holding grooves 111, and the two upper covers 12 are respectively used for blocking the open openings of the holding grooves 111 so as to form two heat exchange flow passages 2.

As shown in fig. 2, a side of the upper cover 12 facing the accommodating groove 111 is formed as a first surface 21 of the heat exchange flow channel 2, and a side of the upper cover 12 facing away from the mounting groove is formed as a mounting surface 103, and the power module 20 is mounted on the mounting surface 103, wherein the power module 20 may be the power module 20 controlling the driving motor and the generator.

As shown in fig. 2, a boss 23 is provided on the bottom wall in each accommodating groove 111, the upper surface of the boss 23 facing the upper cover 12 is configured as a second surface 22 of the heat exchange flow channel 2, and the second surface 22 gradually extends obliquely in a direction away from the first surface 21 in a direction X from the liquid inlet 104 to the liquid outlet 105, so that the flow area of the heat exchange flow channel 2 gradually increases in the direction X from the liquid inlet 104 to the liquid outlet 105.

As shown in fig. 2, the first surface 21 is provided with a plurality of heat conducting members 3 extending into the heat exchange flow channel 2, the heat conducting members 3 are opposite to the mounting surface 103, and on the first surface 21, as shown in fig. 5 and 6, the first surface 21 has three sub-areas 4, wherein the density of the heat conducting members 3 in the direction of the liquid outlet 105 of the liquid inlet 104 in each of the three sub-areas 4 is gradually increased, and the height of the heat conducting members 3 in the direction of the liquid outlet 105 of the liquid inlet 104 is gradually increased.

Like this, when making the heat transfer medium flow through heat transfer runner 2, the heat transfer medium with wait the heat transfer ability of heat dissipation piece strengthen gradually to make the heat transfer medium can wait to realize even heat transfer when flowing through heat transfer runner 2 to wait that the heat dissipation piece appears the overtemperature damage, or the great problem of difference in temperature, and then make the radiating effect of radiator 10 more balanced in order to avoid being close to the liquid outlet 105.

Of course, the above embodiments are only examples of the preferred embodiments for the arrangement of the radiator 10 and the number of heat exchanging channels 2, and the like, and are not meant to be limiting.

The utility model also proposes a vehicle 1000.

As shown in fig. 10, a vehicle 1000 according to an embodiment of the present utility model includes: the motor controller 100 in the above embodiment.

According to the vehicle 1000 of the embodiment of the utility model, the radiator 10 of the motor controller 100 is provided with the heat exchange flow channel 2, and the flow area of the heat exchange flow channel 2 is gradually increased in the direction X from the liquid inlet 104 to the liquid outlet 105, so that more heat exchange medium can be distributed at the position close to the liquid outlet 105 in the heat exchange flow channel 2, and when the heat exchange medium flows through the heat exchange flow channel 2, the heat exchange capacity of the heat exchange medium and the heat to-be-radiated piece is gradually enhanced, so that the heat exchange medium can realize uniform heat exchange on the heat to-be-radiated piece when flowing through the heat exchange flow channel 2, and the problems of over-temperature damage or larger temperature difference of the heat to-be-radiated piece close to the liquid outlet 105 are avoided, and the heat radiation effect of the radiator 10 is more balanced.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A heat sink (10), comprising:

the heat exchange device comprises a shell (1), wherein a heat exchange flow channel (2) for circulating a heat exchange medium is arranged in the shell (1), and the flow area of at least one part of the heat exchange flow channel (2) is gradually increased in the extending direction of the heat exchange flow channel (2).

2. The radiator according to claim 1, characterized in that the housing (1) is provided with a liquid inlet (104) and a liquid outlet (105) communicating with the heat exchange flow channel (2);

in the direction from the liquid inlet (104) to the liquid outlet (105), the flow area of at least one part of the heat exchange flow channel (2) is gradually increased.

3. The heat sink (10) according to claim 1, wherein the heat exchanging channel (2) has a first surface (21) and a second surface (22) arranged opposite each other, the second surface (22) extending gradually obliquely in a direction away from the first surface (21) in the direction of extension of the heat exchanging channel (2).

4. The radiator (10) according to claim 1, wherein a heat conducting member (3) is provided in the housing (1), and the heat conducting member (3) extends into the heat exchanging flow passage (2).

5. The heat sink (10) according to claim 4, wherein the housing (1) is provided with a mounting surface (103) for mounting a member to be heat-dissipated, the heat conducting member (3) being arranged opposite to the mounting surface (103).

6. The heat sink (10) according to claim 4, wherein the number of the heat conducting members (3) is plural, and the plurality of the heat conducting members (3) are distributed at intervals in the extending direction of the heat exchanging flow path (2).

7. The heat sink (10) according to claim 6, wherein the heat exchanging area of the plurality of heat conducting members (3) gradually increases in the extending direction of the heat exchanging flow path (2).

8. The radiator (10) according to claim 7, wherein the plurality of heat conductive members (3) gradually increase in height in the extending direction of the heat exchanging flow passage (2).

9. The radiator (10) according to claim 4, wherein a plurality of the heat conducting members (3) are distributed into a plurality of sub-areas (4) in the extending direction of the heat exchanging flow passage (2), each of the sub-areas (4) being provided with a plurality of the heat conducting members (3), the densities of the heat conducting members (3) of the plurality of sub-areas (4) being gradually increased.

10. The heat sink (10) according to any one of claims 1-9, wherein the housing (1) comprises a box (11) and an upper cover (12), a receiving groove (111) for receiving the heat exchange medium is formed in the box (11), and the upper cover (12) is for closing the receiving groove (111) to define the heat exchange flow passage (2).

11. Radiator (10) according to claim 10, wherein in the direction of extension of the heat exchange flow path (2), a plurality of receiving grooves (111) communicating with each other are provided in the case (11), each of the receiving grooves (111) being provided with the upper cover (12) in correspondence, the upper cover (12) being provided with a mounting surface (103) for mounting a member to be heat-dissipated.

12. A motor controller (100), characterized by comprising: a power module (20) and a heat sink (10) according to any of claims 1-11, the power module (20) being mounted to the housing (1).

13. A vehicle (1000), characterized by comprising: the motor controller (100) of claim 12.