CN221213529U - Heat exchange flow passage structure, vehicle-mounted charger and vehicle - Google Patents

Abstract

The utility model provides a heat exchange flow passage structure, a vehicle-mounted charger and a vehicle, and relates to the technical field of automobile parts. In the heat exchange flow channel structure, a heat dissipation structure is arranged at least one groove wall of the flow channel groove, so that the heat exchange performance of the heat exchange flow channel structure at the heat dissipation structure can be pertinently improved, for example, the position of the heat dissipation structure can be set to correspond to a region with higher heat exchange requirement, and the heat exchange efficiency of the region with higher heat exchange requirement can be pertinently improved; the cover plate is provided with the first boss extending into the runner groove, and the first boss is utilized to occupy part of the cross section of the groove cavity, so that the cross section of the runner actually formed by the runner groove and the cover plate can be reduced, the flow velocity of the refrigerant in the runner is improved, the heat exchange efficiency is ensured, and the larger power requirement on the refrigerant driving device can be reduced. The utility model can meet the heat exchange efficiency requirement of the heat exchange flow channel and reduce the driving force requirement of the refrigerant.

Description

Heat exchange flow passage structure, vehicle-mounted charger and vehicle

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a heat exchange flow channel structure, a vehicle-mounted charger and a vehicle.

Background

Heat exchange flow channels are widely used in a variety of devices to meet heat exchange requirements. For example, in the vehicle-mounted charger, heat is generated by a transformer and power devices on a circuit board during operation, and the use efficiency of the vehicle-mounted charger is affected when the heat source components are overheated. To solve this problem, a three-dimensional cooling flow channel is generally used, and a plurality of outer walls of the three-dimensional cooling flow channel can be used for arranging parts, in particular, heat source parts, and the heat source parts are cooled by introducing a refrigerant into the flow channel.

The size of the three-dimensional flow channel is affected by the size of its external components. For example, if the height of the heat source member on one side in the width direction of the three-dimensional flow passage is high, the depth of the three-dimensional flow passage also needs to be enlarged accordingly, resulting in a larger cross section of the three-dimensional flow passage. This not only affects the heat exchange effect, but also causes a flow velocity of the refrigerant to be slow when flowing through the three-dimensional cooling flow passage, further causing deterioration of heat dissipation of the heat source member. In addition, in this case, a driving device with a large power is required to drive the flow of the refrigerant, and the cost is high.

Disclosure of utility model

The utility model aims to solve the problem of how to consider the heat exchange efficiency requirement of the heat exchange flow channel and reduce the driving force requirement of the refrigerant in the related technology to a certain extent.

In order to solve at least one aspect of the above problems at least to a certain extent, the present utility model provides a heat exchange runner structure, which comprises a first shell and a cover plate, wherein the first shell is provided with a runner groove, a heat dissipation structure is arranged at least one groove wall of the runner groove, the cover plate is covered at a notch of the runner groove, and the cover plate is provided with a first boss extending into the runner groove.

Optionally, the first boss is disposed to extend along an extending direction of the flow channel groove.

Optionally, the heat exchange flow channel structure further comprises a refrigerant inlet and a refrigerant outlet, the refrigerant inlet and the refrigerant outlet are respectively located at two ends of the flow channel groove along the extending direction of the flow channel groove, and the two ends of the first boss along the extending direction of the flow channel groove are respectively extended to the refrigerant inlet and the refrigerant outlet.

Optionally, the first boss and the channel wall of the channel groove along the depth direction are arranged at intervals, and/or the first boss and the channel wall of the channel groove along the width direction are arranged at intervals.

Optionally, the position of the heat dissipation structure is used for corresponding to a heat dissipation area of the heat dissipation part, and the heat dissipation part is located at the outer side of the groove wall where the heat dissipation structure is located.

Optionally, the heat dissipation structure is located in a groove cavity of the runner groove, and the first boss and the heat dissipation structure are arranged at intervals;

and/or, the heat dissipation structure is integrally formed on the corresponding groove wall;

and/or the heat dissipation structure comprises at least one of a convex column and a fin.

Optionally, the heat exchange flow channel structure further comprises at least one of a groove and a protrusion structure;

the groove wall of the runner groove and/or the surface of the first boss are recessed in a direction away from the groove cavity of the runner groove to form a groove, the groove extends along a direction perpendicular to the extending direction of the runner groove, and the cross section of the groove perpendicular to the extending direction of the groove is arc-shaped;

The groove wall of the runner groove and/or the surface of the first boss protrudes towards the direction close to the groove cavity of the runner groove to form the protruding structure, the protruding structure extends along the direction perpendicular to the extending direction of the runner groove, and the cross section of the protruding structure perpendicular to the extending direction of the protruding structure is arc-shaped.

Optionally, a first accommodating cavity is formed in the first shell, the first shell is recessed towards the interior of the first accommodating cavity to form the runner groove, and the runner groove separates the first accommodating cavity to form a plurality of accommodating parts;

And/or the runner groove comprises a first groove section, a second groove section and a transition groove section, wherein the first groove section, the transition groove section and the second groove section are sequentially connected and form a U-shaped structure.

In a second aspect, the present utility model provides a vehicle-mounted charger, comprising the heat exchange flow channel structure as described in the first aspect.

In a third aspect, the present utility model provides a vehicle comprising a heat exchange flow path structure as described in the first aspect and/or comprising an on-board charger as described in the second aspect.

Compared with the related prior art, in the heat exchange flow channel structure, the vehicle-mounted charger and the vehicle, the heat dissipation structure is arranged at the position of at least one groove wall of the flow channel groove, and the heat exchange performance of the position of the heat dissipation structure is relatively strong, so that the heat exchange performance of the heat exchange flow channel structure and the heat dissipation structure outside the flow channel groove can be purposefully improved, for example, the position of the heat dissipation structure can be set to correspond to a region with higher heat exchange requirement, and the heat exchange efficiency of the region with higher heat exchange requirement can be purposefully improved; meanwhile, be provided with the first boss of stretching into the inslot of runner groove on the apron, in the cross section of runner groove, utilize first boss can occupy the partial cross section of groove chamber to can reduce the cross-sectional area of runner that runner groove and apron enclose in fact, on the one hand can promote the velocity of flow of refrigerant in the runner, thereby ensure heat exchange efficiency, on the other hand, can reduce the great power demand to refrigerant drive arrangement to a certain extent, practice thrift the cost. In general, the utility model can meet the heat exchange efficiency requirement of the heat exchange flow channel and reduce the driving force requirement of the refrigerant, and has simple structure and strong practicability.

Drawings

FIG. 1 is a schematic top view of a heat exchange flow channel structure according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view taken at section A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view at section B-B of FIG. 2;

FIG. 4 is a schematic cross-sectional view at section C-C of FIG. 2;

FIG. 5 is a schematic cross-sectional view at section D-D of FIG. 2;

FIG. 6 is an exploded view of a heat exchange flow path structure in accordance with an embodiment of the present utility model;

FIG. 7 is a schematic view of another structure of the first housing according to the embodiment of the utility model;

Fig. 8 is a schematic view of another structure of the first housing according to the embodiment of the present utility model.

Reference numerals illustrate:

1-a first housing; 11-runner grooves; 11 a-a first trough section; 11 b-a second trough section; 11 c-a transition trough section; 111-a trough bottom wall; 112-groove sidewalls; 113-a cell cavity; 12-a heat dissipation structure; 13-refrigerant inlet; 14-refrigerant outlet; 15-a first cavity; 151-a receiving portion; 16-grooves; 2-cover plate; 21-a first boss; 22-concave structure.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, descriptions of the terms "embodiment," "one embodiment," "some embodiments," "illustratively," and "one embodiment" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or implementation of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. As such, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The Z axis in the drawing represents vertical, i.e., up and down, and the positive direction of the Z axis (i.e., the arrow pointing to the Z axis) represents up, and the negative direction of the Z axis represents down; the X-axis in the drawing indicates the front-rear position, and the positive direction of the X-axis (i.e., the arrow of the X-axis is directed) indicates the front side, and the negative direction of the X-axis indicates the rear side; the Y-axis in the drawing indicates the horizontal direction and is designated as the left-right position, and the positive direction of the Y-axis (i.e., the arrow of the Y-axis points) indicates the right side, and the negative direction of the Y-axis indicates the left side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 to 5 and 7, an embodiment of the present utility model provides a heat exchange flow channel structure, which includes a first housing 1 and a cover plate 2, wherein the first housing 1 is provided with a flow channel groove 11, at least one groove wall of the flow channel groove 11 is provided with a heat dissipation structure 12, the cover plate 2 is covered at a notch of the flow channel groove 11, and the cover plate 2 is provided with a first boss 21 extending into the flow channel groove 11.

It should be noted that, in the following description, the description mainly uses a heat exchange flow channel structure for an on-vehicle charger as an example to describe the present utility model, but it should be understood that the present utility model can be used in other occasions where heat exchange is required by using a flow channel without violating the design concept of the present utility model, and the detailed description will not be repeated.

The specific extension of the flow channel 11 is not limited, and may be set according to actual needs, and will be described as an example.

The heat dissipation structure 12 can increase heat conduction and dissipation, and in practical use, the heat exchange flow channel structure can be used for cooling the peripheral side part of the heat exchange flow channel structure and heating the peripheral side part of the heat exchange flow channel structure, and the description mainly uses the former as an example.

In this embodiment, the heat dissipation structure 12 is disposed at least one groove wall of the runner groove 11, and the heat exchange performance of the heat exchange runner structure at the position of the heat dissipation structure 12 and the heat exchange performance of the outside of the runner groove 11 are relatively strong, so that the heat exchange performance of the heat exchange runner structure at the heat dissipation structure 12 can be purposefully improved, for example, the position of the heat dissipation structure 12 can be set to correspond to a region with a higher heat exchange requirement, and the heat exchange efficiency of the region with a higher heat exchange requirement can be purposefully improved; meanwhile, the cover plate 2 is provided with the first boss 21 extending into the groove cavity 113 of the runner groove 11, and in the cross section of the runner groove 11, part of the cross section of the groove cavity 113 can be occupied by the first boss 21, so that the cross section of a runner actually formed by the runner groove 11 and the cover plate 2 can be reduced, on one hand, the flow velocity of a refrigerant in the runner can be improved, thereby ensuring the heat exchange efficiency, and on the other hand, the larger power requirement on the refrigerant driving device can be reduced to a certain extent, and the cost is saved. In general, the utility model gives consideration to the heat exchange efficiency requirement of the heat exchange flow channel and the requirement of reducing the driving force of the refrigerant, and particularly when the cross section area of the flow channel groove 11 is larger due to other factors, the utility model can give consideration to the heat exchange efficiency requirement of the heat exchange flow channel and the requirement of reducing the driving force of the refrigerant on the basis of the inherent larger cross section area, and has simple structure and strong practicability.

As shown in fig. 7, alternatively, the first boss 21 is provided to extend in the extending direction of the flow passage groove 11.

Specifically, the groove wall of the flow channel groove 11 along the groove width is taken as the groove bottom wall 111, and the groove bottom wall 111 is substantially parallel to the XY plane, and at this time, the projection of the flow channel groove 11 on the XY plane extends along a first track, the projection of the first boss 21 on the XY plane extends along a second track, and the second track is substantially matched with the first track, but the track length of the second track may be smaller than the track length of the first track. The first track may comprise a straight track and/or a curved track, etc., and the specification and drawings show that the first track is substantially "U" shaped.

It should be understood that the extending direction of the flow channel groove 11 is the flowing direction of the refrigerant therein, the groove width direction thereof is perpendicular to the groove depth direction and is perpendicular to the flow channel direction of the refrigerant, and in the plane perpendicular to the thickness direction of the cover plate 2, the direction in which the first boss 21 is larger in size is generally defined as the extending direction thereof, and in this embodiment, the dimension of the first boss 21 in the extending direction of the flow channel groove 11 is larger than the dimension in the groove width direction of the flow channel groove 11 thereof.

In this way, the first boss 21 is set to extend along the extending direction of the flow channel groove 11, instead of setting the first boss 21 to extend along the groove width direction of the flow channel groove 11, so that the cross-sectional area of the refrigerant flow channel actually surrounded by the cover plate 2 and the flow channel groove 11 can be reduced, and excessive resistance of the refrigerant flowing through the first boss 21 can be avoided.

As shown in fig. 7, the heat exchange flow channel structure further includes a refrigerant inlet 13 and a refrigerant outlet 14, wherein the refrigerant inlet 13 and the refrigerant outlet 14 are respectively located at two ends of the flow channel 11 along the extending direction thereof, and the two ends of the first boss 21 along the extending direction of the flow channel 11 are respectively extended to the refrigerant inlet 13 and the refrigerant outlet 14.

Specifically, the refrigerant inlet 13 is communicated with the groove cavity 113 of the flow channel groove 11 at a first end of the flow channel groove 11 along the extending direction thereof, the refrigerant outlet 14 is communicated with the groove cavity 113 of the flow channel groove 11 at a second end of the flow channel groove 11 along the extending direction thereof, one end of the first boss 21 along the extending direction of the flow channel groove 11 is close to the refrigerant inlet 13 and is spaced from the refrigerant inlet 13, and the other end is close to the refrigerant outlet 14 and is spaced from the refrigerant outlet 14.

It should be understood that fig. 7 only shows the case where the refrigerant inlet 13 and the refrigerant outlet 14 are provided in the first housing 1, but it should be understood that the refrigerant inlet 13 and the refrigerant outlet 14 may be provided on the cover plate 2, and a space may be left between the first boss 21 and the refrigerant inlet 13, and a space may be left between the first boss 21 and the refrigerant outlet 14.

In this way, the refrigerant flowing into the flow channel 11 from the refrigerant inlet 13 flows along the extending direction of the flow channel 11 and then flows out from the refrigerant outlet 14, and heat exchange is performed in the process, for example, when the heat exchange flow channel structure is used for cooling external components, the temperature of the refrigerant in the channel cavity 113 of the flow channel 11 gradually increases in the direction from the refrigerant inlet 13 to the refrigerant outlet 14, so that a good heat exchange effect can be obtained. The two ends of the first boss 21 along the extending direction of the runner groove 11 extend to the refrigerant inlet 13 and the refrigerant outlet 14 respectively, so that the continuity of the first boss 21 in the extending direction of the runner groove 11 is better, the occupation of the cross section of the runner groove 11 can be formed at each position on the refrigerant flowing path, and the increase of the refrigerant flowing resistance possibly caused by arranging a plurality of first bosses 21 at intervals in the extending direction of the runner groove 11 is avoided.

Alternatively, along the extending direction of the flow channel 11, the first end surface of the first boss 21 near the refrigerant inlet 13 may be provided as a guiding slope or a guiding arc surface, and the second end of the first boss 21 near the refrigerant outlet 14 may be provided as a guiding slope or a guiding arc surface. Thereby facilitating the inflow or outflow of the refrigerant.

As shown in fig. 2 to 6, in the above embodiment, the first boss 21 is optionally provided at a distance from the groove wall of the flow channel groove 11 in the groove depth direction.

In this embodiment, the groove wall of the flow channel groove 11 along the groove depth direction is the groove bottom wall 111, and a space is provided between the first boss 21 and the groove bottom wall 111 to avoid the contact between the first boss 21 and the groove bottom wall 111, so that the refrigerant flows through the gap between the first boss 21 and the groove bottom wall 111, a relatively large contact area can be obtained between the groove bottom wall 111 and the refrigerant, and the heat exchange efficiency of the entire groove bottom wall 111 can be ensured. At this time, the outer wall surface of the tank bottom wall 111 may be opposed to, for example, a main circuit board of an in-vehicle charger, and corresponds to a region on the main circuit board where the temperature is relatively high.

Alternatively, the first boss 21 is provided at a distance from the groove wall of the flow passage groove 11 in the groove width direction.

In this embodiment, the groove wall of the flow channel groove 11 along the groove width direction is the groove sidewall 112, and a space is provided between the first boss 21 and the groove sidewall 112 to avoid the contact between the first boss 21 and the groove sidewall 112, so that the refrigerant flows through the gap between the first boss 21 and the groove sidewall 112, and a relatively large contact area can be obtained between the groove sidewall 112 and the refrigerant, so that the heat exchange efficiency of the entire groove sidewall 112 can be ensured. At this time, the outer wall surface of the groove side wall 112 may be opposed to the side wall of the transformer such as an in-vehicle charger, for example, in which case the groove depth of the flow channel groove 11 is limited by the dimension of the transformer in the Z-axis direction, and the provision of the first boss 21 is advantageous in reducing the cross-sectional area of the actual flow channel enclosed by the cover plate 2 and the flow channel groove 11.

As shown in fig. 7 and 8, in the above embodiment, optionally, the first housing 1 is formed with a first cavity 15, the first housing 1 is recessed into the first cavity 15 to form a runner groove 11, and the runner groove 11 partitions the first cavity 15 into a plurality of receiving portions 151.

Illustratively, the runner duct 11 includes a first duct section 11a, a second duct section 11b, and a transition duct section 11c, the first duct section 11a, the transition duct section 11c, and the second duct section 11b are sequentially connected and form a U-shaped structure that divides the first cavity 15 into three receiving portions 151, the three receiving portions 151 may be arranged as needed, for example, the receiving portions 151 between the first duct section 11a and the second duct section 11b may be used to receive a transformer, a main circuit board is located at one side of the transformer in a duct depth direction of the runner duct 11, and the main circuit board is supported on the duct bottom wall 111, the duct side wall 112, or other supporting structures. At this time, the vehicle-mounted charger generally further includes a second housing, and other components of the vehicle-mounted charger are further disposed on the other side of the main circuit board away from the runner groove 11, and the second housing and the first housing 1 are connected to form protection for the main circuit board and the components.

Optionally, the position of the heat dissipation structure 12 corresponds to a heat dissipation area of a heat dissipation part, and the heat dissipation part is located outside the groove wall where the heat dissipation structure 12 is located.

Illustratively, the outer wall surface of the groove bottom wall 111 of the flow channel groove 11 is disposed opposite to a main circuit board, on which a plurality of power devices, for example, a plurality of MOS transistors (MosMetal-Oxide-Semiconductor Field-Effect Transistor) are disposed, and heat dissipation substrates are respectively provided, and the heat dissipation substrates corresponding to the power devices, that is, the heat dissipation areas to be dissipated of the power devices, are respectively and correspondingly provided with the heat dissipation structures 12, so as to improve the heat exchange performance of the heat dissipation parts in a targeted manner.

It should be understood that the number of the heat dissipation structures 12 may be set to be plural according to actual needs, and the plural heat dissipation structures 12 may have corresponding heat dissipation areas.

Optionally, the heat dissipation structure 12 is located in the groove cavity 113 of the runner groove 11, and the first boss 21 is spaced from the heat dissipation structure 12.

Specifically, when the heat radiation structure 12 is located at the groove bottom wall 111, the surface of the first boss 21 opposite to the groove bottom wall 111 is spaced apart from the heat radiation structure 12. The specific interval between the two is determined according to actual requirements.

In this embodiment, the heat dissipation structure 12 is located in the groove cavity 113 of the runner groove 11, and the groove wall of the runner groove 11 where the heat dissipation structure 12 is located, for example, the outer wall surface of the groove bottom wall 111, may be relatively flat, so as to avoid collision with external components, for example, avoid collision with devices on the main circuit board, which affects the service performance, and in this case, the heat dissipation substrate in the above embodiment may contact with the outer wall surface of the groove bottom wall 111. The first boss 21 and the heat dissipation structure 12 are arranged at intervals, so that on one hand, the collision between the first boss 21 and the heat dissipation structure 12 is avoided, the connection reliability of the cover plate 2 and the first shell 1 is affected, and on the other hand, the contact area between the refrigerant and the heat dissipation structure 12 can be ensured, and the heat exchange performance of the heat dissipation structure 12 is ensured.

Optionally, the heat dissipating structure 12 is integrally formed with its corresponding slot wall. For example, the heat dissipation structure 12 at the tank bottom wall 111 is integrally formed from the tank bottom wall 111. The device has simple structure and high reliability.

Optionally, the heat dissipating structure 12 includes at least one of a stud and a fin. In the present embodiment, the heat dissipation structures 12 are illustrated as the protruding columns, and the number of the heat dissipation structures 12 is plural, and the heat dissipation structures 12 should be disposed at intervals, so that a larger contact area with the refrigerant can be obtained.

The contact surfaces of the convex columns and the fins for contact with the refrigerant are preferably cambered surfaces along the extending direction of the flow channel 11, and the cross section shape of the convex columns is usually circular or elliptical, so that the flow resistance of the refrigerant is reduced.

As shown in fig. 3 and 7, in the above embodiment, optionally, the heat exchange flow channel structure further includes a groove 16; the groove wall of the flow channel groove 11 and/or the surface of the first boss 21 is recessed in a direction away from the groove cavity 113 of the flow channel groove 11 to form a groove 16, the groove 16 extends in a direction perpendicular to the extending direction of the flow channel groove 11, and a cross section of the groove 16 perpendicular to the extending direction thereof is arc-shaped.

The grooves 16 may be formed at a plurality of positions of the heat exchange flow path structure, and in particular, the groove walls of the flow path groove 11 may be recessed in a direction away from the groove cavity 113 of the flow path groove 11 to form the grooves 16, and the surfaces of the first bosses 21 may also be recessed in a direction away from the groove cavity 113 of the flow path groove 11 to form the grooves 16. The groove side wall 112 of the flow channel groove 11 in the groove width direction may form the groove 16, the groove bottom wall 111 of the flow channel groove 11 in the groove depth direction may also form the groove 16, the surface of the first boss 21 opposite to the groove side wall 112 may form the groove 16, and the surface of the first boss 21 opposite to the groove bottom wall 111 may also form the groove 16. The cross section of the groove 16 perpendicular to the extending direction thereof cuts perpendicularly the groove side wall 112 or the groove bottom wall 111 where it is located, and the shape of the cross section of the groove 16 perpendicular to the extending direction thereof, that is, the shape of the cutting line formed by the groove side wall 112 or the groove bottom wall 111.

Illustratively, the runner groove 11 includes a first groove section 11a extending along the X-axis direction, two groove side walls 112 of the first groove section 11a along the groove width direction are each provided with a groove 16, the groove 16 extends along the Z-axis direction, and the shape of the groove 16 in a cross section parallel to the XY plane is arc-shaped, which can also be regarded as the projection of the groove 16 in the XY plane is arc-shaped.

In this embodiment, when the refrigerant flows through the groove 16, the refrigerant contacts with the arc surface of the groove 16, and the small change of the flow velocity easily forms a turbulent flow field with turbulence and irregularity at the groove 16, which increases the turbulence of the refrigerant to a certain extent, promotes the flow of the refrigerant between the regions in the cross section of the actual flow channel enclosed by the cover plate 2 and the flow channel 11, for example, the refrigerant located at the center of the cross section of the actual flow channel is mixed with the refrigerant proximate to the side wall 112 region of the channel, thereby improving the heat exchange efficiency.

The dimensions of the recess 16 are determined according to the actual requirements and will not be described in detail here.

Further, when the heat dissipation structure 12 is a boss integrally formed on the inner wall of the tank bottom wall 111, the tank side wall 112 may be provided with a groove 16 at a position corresponding to the boss, so that on one hand, the cross section of the actual flow path at the boss is ensured, on the other hand, the requirement for the tank width of the flow path tank 11 can be reduced to a certain extent, and on the other hand, the turbulence of the refrigerant can be enhanced.

In the above embodiment, optionally, the heat exchange flow channel structure further includes a protrusion structure, and the groove wall of the flow channel groove 11 and/or the surface of the first boss 21 protrude in a direction close to the groove cavity 113 of the flow channel groove 11 to form the protrusion structure, the protrusion structure extends in a direction perpendicular to the extending direction of the flow channel groove 11, and a cross section of the protrusion structure perpendicular to the extending direction thereof is arc-shaped.

The protruding structures function in a similar manner to the grooves 16. The heat exchange flow path structure may be provided with both the grooves 16 and the protruding structures, and the number of the grooves 16 and the protruding structures may be plural along the extending direction of the flow path groove 11. The number and location of the grooves 16 or raised structures may be selected according to actual needs.

In the above embodiment, it should be understood that the cover plate 2 is hermetically connected to the first housing 1.

For example, the cover plate 2 and the first housing 1 may be welded to be sealed, and for example, friction stir welding may be used to connect them.

In the above embodiment, it should be understood that the size of the first boss 21 is set according to actual needs, for example, the maximum size of the first boss 21 in the groove depth direction of the flow channel groove 11 may be larger than the groove width of the flow channel.

In the above embodiment, it should be understood that, when there is a large relief design on the wall of the flow channel 11 due to the need of avoiding the external component, the first boss 21 may alternatively have a generally conformal structure corresponding to the relief design, so that the cross-sectional area of the actually formed flow channel is too large to affect the flow rate of the refrigerant.

As shown in fig. 7 and 8, for example, when the position of the groove bottom wall 111 of the transition groove section 11c in the up-down direction is high relative to the position of the groove bottom walls 111 of the first groove section 11a and the second groove section 11b in the up-down direction, the first boss 21 is provided with the concave structure 22 at the position corresponding to the transition groove section 11c, thereby realizing the avoidance and follow-up, and avoiding the excessively large change in the cross-sectional area of the flow passage actually formed.

The utility model provides a vehicle-mounted charger which comprises the heat exchange flow channel structure.

The vehicle provided by the utility model comprises the vehicle-mounted charger of the embodiment.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and such changes and modifications would fall within the scope of the utility model.

Claims (10)

1. The utility model provides a heat exchange runner structure, its characterized in that includes first casing (1) and apron (2), first casing (1) is provided with runner groove (11), at least one cell wall department of runner groove (11) is provided with heat radiation structure (12), apron (2) lid is located the notch department of runner groove (11), apron (2) are provided with stretch into first boss (21) of runner groove (11).

2. A heat exchange flow channel structure according to claim 1, wherein said first bosses (21) are provided extending in the direction of extension of said flow channel grooves (11).

3. The heat exchange flow passage structure according to claim 2, further comprising a refrigerant inlet (13) and a refrigerant outlet (14), wherein the refrigerant inlet (13) and the refrigerant outlet (14) are respectively located at both ends of the flow passage groove (11) along the extending direction thereof, and the first boss (21) is respectively extended to the refrigerant inlet (13) and the refrigerant outlet (14) along both ends of the flow passage groove (11) along the extending direction thereof.

4. The heat exchange flow channel structure according to claim 1, wherein the first boss (21) is disposed at a distance from the flow channel groove (11) along the groove wall in the groove depth direction, and/or the first boss (21) is disposed at a distance from the flow channel groove (11) along the groove wall in the groove width direction.

5. The heat exchange flow channel structure according to claim 1, wherein the heat dissipation structure (12) is located corresponding to a heat dissipation area of a member to be dissipated, and the member to be dissipated is located outside a groove wall where the heat dissipation structure (12) is located.

6. The heat exchange flow channel structure according to claim 1, wherein the heat dissipating structure (12) is located in a channel cavity (113) of the flow channel (11), and the first boss (21) is spaced from the heat dissipating structure (12);

and/or, the heat dissipation structure (12) is integrally formed on the corresponding groove wall;

and/or the heat dissipating structure (12) comprises at least one of a stud and a fin.

7. The heat exchange flow path structure of any one of claims 1 to 6, further comprising at least one of a groove (16) and a raised structure;

The groove wall of the runner groove (11) and/or the surface of the first boss (21) is recessed in a direction away from the groove cavity (113) of the runner groove (11) to form the groove (16), the groove (16) extends along a direction perpendicular to the extending direction of the runner groove (11), and the cross section of the groove (16) perpendicular to the extending direction is arc-shaped;

The groove wall of the runner groove (11) and/or the surface of the first boss (21) protrudes towards the direction close to the groove cavity (113) of the runner groove (11) to form the protruding structure, the protruding structure extends along the direction perpendicular to the extending direction of the runner groove (11), and the shape of the cross section of the protruding structure perpendicular to the extending direction is arc-shaped.

8. The heat exchange flow channel structure according to any one of claims 1 to 6, wherein a first accommodating chamber (15) is formed in the first housing (1), the first housing (1) is recessed toward the inside of the first accommodating chamber (15) to form the flow channel groove (11), and the flow channel groove (11) partitions the first accommodating chamber (15) to form a plurality of accommodating portions (151);

And/or, the runner groove (11) comprises a first groove section (11 a), a second groove section (11 b) and a transition groove section (11 c), and the first groove section (11 a), the transition groove section (11 c) and the second groove section (11 b) are sequentially connected and form a U-shaped structure.

9. A vehicle-mounted charger comprising the heat exchange flow path structure according to any one of claims 1 to 8.

10. A vehicle comprising a heat exchange flow path structure according to any one of claims 1 to 8 and/or comprising an on-board charger according to claim 9.