CN214307694U - Heat exchanger - Google Patents

Abstract

The utility model discloses a heat exchange device, which comprises a heat exchange core body, the seat body component comprises a valve core component, the seat body component is provided with a first cavity, part of the valve core component is contained in the first cavity, the seat body component is provided with a fluid inlet channel, the fluid inlet channel comprises a fluid inlet and a first interface, the first interface is communicated with the first cavity, the heat exchange device further comprises a first filtering component, the first filtering component is fixed with the wall portion corresponding to the fluid inlet channel in a sealing mode, the first filtering component comprises a first filtering net, meshes of the first filtering net are communicated with the fluid inlet and the first interface, the seat body component further comprises a first concave portion, the part, corresponding to the fluid inlet channel, of the wall portion, sealed and fixed with the first filtering component is defined as a first fixing portion, an opening of the first concave portion is adjacent to the first fixing portion, and compared with the first fixing portion, the opening of the first concave portion is close to the fluid inlet. And the accumulation of impurities on the first filter screen is reduced.

Description

Heat exchanger

Technical Field

The utility model relates to a heat management technical field, in particular to heat transfer device.

Background

The electronic expansion valve is a part commonly used in a refrigeration device for adjusting the flow of fluid, in a heat exchange device, the electronic expansion valve and a heat exchanger are integrated into a whole, in order to prevent impurities from a refrigerant from entering the electronic expansion valve to cause blockage or influence the flow precision in the use process, or the impurities enter the heat exchanger to block a flow passage in the heat exchanger, a filter is arranged at the inlet side of the electronic expansion valve.

However, impurities may be present in the filter, and as the usage time increases, the impurities may increase, which may increase resistance to refrigerant flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat transfer device, this heat transfer device can reduce impurity and pile up at the filter.

The provided heat exchange device comprises a heat exchange core body, wherein the heat exchange core body comprises a first fluid channel and a second fluid channel which are isolated from each other, the heat exchange device further comprises a seat body part, the seat body part is fixedly connected with the heat exchange core body, the heat exchange device further comprises a valve core assembly, the seat body part is provided with a first cavity, part of the valve core assembly is accommodated in the first cavity, the seat body part is provided with a fluid inlet channel, the fluid inlet channel comprises a bit fluid inlet and a first interface, the first interface is communicated with the first cavity, the first fluid channel comprises a first pore channel, the heat exchange device further comprises a first filter assembly, the first filter assembly is fixed with a wall part corresponding to the fluid inlet channel in a sealing manner, the first filter assembly comprises a first filter screen, and at least part of the first filter screen is positioned in the fluid inlet channel, the mesh of the first filter communicates the fluid inlet and the first port; the seat body component further includes a first recess recessed in a wall portion corresponding to the fluid inlet channel, a portion of the wall portion corresponding to the fluid inlet channel, which is fixed to the first filter assembly in a sealing manner, is defined as a first fixing portion, an opening of the first recess is adjacent to the first fixing portion, and the opening of the first recess is closer to the fluid inlet channel than the first fixing portion.

The heat exchange device comprises a base body component and a first filtering assembly, wherein the base body component is provided with a fluid inlet channel, a wall part corresponding to the fluid inlet channel is provided with a first fixing part fixed with the first filtering assembly in a sealing mode, the base body component further comprises a first concave part arranged close to the first fixing part, the fluid inlet channel comprises a fluid inlet, compared with the first fixing part, an opening of the first concave part is close to the fluid inlet, impurities filtered through a first filter screen can enter the first concave part, and accumulation of the filtered impurities on the first filter screen is reduced.

Drawings

FIG. 1 is a cross-sectional view of one embodiment of a heat exchange device of the present invention;

FIG. 2 is a cross-sectional view of a first filter assembly of an embodiment of a heat exchange apparatus of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 1;

FIG. 4 is a partial cross-sectional view of another embodiment of a heat exchange device of the present invention;

FIG. 5 is a front view of yet another embodiment of a heat exchange device according to the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a cross-sectional view of a first filter assembly of yet another embodiment of a heat exchange apparatus of the present invention;

fig. 8 is a cross-sectional view of a seat member of a further embodiment of a heat exchange device of the present invention.

Reference numerals:

the heat exchange core 1, the first portholes 11, the second portholes 12,

the seat body part 2, the first cavity 21, the fluid inlet channel 22, the fluid inlet 221, the first port 222, the first recess 23, the second inclined wall 231, the first fixing portion 241, the protrusion 26,

the first filter assembly 3, the first bracket 31, the main body portion 311, the connecting portion 312, the inclined wall portion 3121, the first filter mesh 32,

an orifice 41, and a second filter assembly 5.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

In this document, terms such as "upper, lower, left, right" and the like are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, they are not to be construed as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements; "communication" means direct communication or indirect communication through other channels.

Referring to fig. 1-4, a heat exchange device comprises a heat exchange core body 1, wherein the heat exchange core body 1 comprises a first fluid channel and a second fluid channel which are isolated from each other, the heat exchange core body 1 comprises a bottom plate and an end plate, and a first plate (not shown) and a second plate (not shown) which are positioned between the bottom plate and the end plate, wherein the first plate and the second plate are stacked, the first plate and the second plate are provided with corner holes, the corner holes of the first plate and the corner holes of the second plate are aligned to form a first pore passage 11, a second pore passage 12, a third pore passage and a fourth pore passage, the first fluid passage comprises a first pore passage 11, a second pore passage 12 and a first interplate passage, the first interplate passage is communicated with the first pore passage 11 and the second pore passage 12, the second fluid passage comprises a third pore passage, a fourth pore passage and a second interplate passage, and the second interplate passage is communicated with the third pore passage and the fourth pore passage.

The heat exchange device further comprises a seat body component 2, the seat body component 2 is fixedly connected with the heat exchange core 1, the heat exchange device further comprises a valve core assembly, the seat body component 2 is provided with a first cavity 21, part of the valve core assembly is accommodated in the first cavity 21, the seat body component 2 is provided with a fluid inlet channel 22, the fluid inlet channel 22 comprises a fluid inlet 221 and a first interface 222, the first interface 222 is communicated with the first cavity 21, and the first duct 11 is communicated with the first cavity 21.

The heat exchange device further comprises a first filter assembly 3, the first filter assembly 3 is fixed to the wall of the fluid inlet channel 22 in a sealing manner, the first filter assembly 3 comprises a first filter 32, at least a portion of the first filter 32 is located in the fluid inlet channel 22, meshes of the first filter 32 communicate with the fluid inlet 221 and the first port 22, the base member 2 further comprises a first concave portion 23, the first concave portion 23 is recessed in the wall of the fluid inlet channel 22, a portion of the wall of the fluid inlet channel 22, which is fixed to the first filter assembly 3 in a sealing manner, is defined as a first fixing portion 241, an opening of the first concave portion 23 is adjacent to the first fixing portion 241, and compared with the first fixing portion 241, an opening of the first concave portion 23 is close to the fluid inlet 221.

This kind of heat transfer device includes first filter assembly 3, first filter assembly 3 includes first filter screen 32, the mesh intercommunication fluid inlet 221 and the first interface 222 of first filter screen 32, pedestal part 2 still includes first recess 23, the opening of first recess 23 is adjacent with first fixed part 241, and compare in first fixed part 241, the opening of first recess 23 is close to the fluid inlet, impurity after filtering through first filter screen 32 can enter into first recess 23, reduce the piling up of impurity after first filter screen 32 filters at first filter assembly 3.

Referring to fig. 1 to 3, the first filter assembly 3 includes a first bracket 31, the first filter 32 is fixedly connected to the first bracket 31, the first bracket 31 includes a main body portion 311, the main body portion 311 is fixed to a wall portion corresponding to the fluid inlet passage 22 in a sealing manner, that is, a portion of the main body portion contacting the wall portion corresponding to the fluid inlet passage is fixed in a sealing manner, in an axial direction of the fluid inlet passage 22, a top wall of the main body portion 311 facing the fluid inlet 221 is lower than a position where an opening of the first recess 23 is at a minimum distance from the fluid inlet 221, and a top wall of the main body portion 311 facing the fluid inlet 221 is not lower than a position where the opening of the first recess 23 is at a maximum distance from the fluid inlet 221, so that impurities filtered by the first filter 32 enter the first recess 23 under the action of the fluid.

The first support 31 further includes a connecting portion 312 located above the main body portion 311, the first filter mesh 3 is fixedly connected to the main body portion 311 and/or the connecting portion 312, the connecting portion 312 has a first inclined wall portion 3121, in the axial direction of the fluid inlet passage 22, a distance between walls of the first inclined wall portion 3121 corresponding to the fluid inlet passage 22 on the side close to the fluid inlet 221 is greater than a distance between walls of the first inclined wall portion 3121 corresponding to the fluid inlet passage 22 on the side far from the fluid inlet 221, one of surfaces defining an axis perpendicular to the fluid inlet passage 22 is a projection surface, and an outer ring of a projection of the connecting portion 312 on the projection surface substantially coincides with an outer ring of a projection of the main body portion 311 on the projection surface.

One of the faces defining the axis passing through the fluid inlet passage 22 is a first face, and the intersection line of the first inclined wall portion 3121 and the first face is a line segment, an inward concave curve, or an outward convex curve, facilitating the entry of the filtered foreign substances passing through the first filter 32 into the first concave portion 23.

In the axial direction of the fluid inlet channel 22, the first filter 32 protrudes toward the direction away from the heat exchange core 1, the projection of the cross section of the heat exchange core 1 far away from the first filter 32 on the projection plane is located in the projection of the cross section of the heat exchange core close to the first filter 32 on the projection plane, for example, the first filter 32 is hemispherical, conical, truncated cone, etc., the projection of the end of the first inclined wall 3121 far away from the heat exchange core 1 on the projection plane is approximately coincident with the outer edge of the projection of the first filter 3 on the projection plane, so that the impurities filtered by the first filter 32 can enter the first concave portion 23.

The connecting portion 312 and the main body portion 311 may be integrally injection molded, thereby simplifying the process and improving the strength of the first bracket 31.

In the axial direction of the fluid inlet passage 22, the top wall of the main body portion 311 facing the fluid inlet 221 and the opening of the first recess 23 are substantially flush with the maximum distance from the fluid inlet 221, the first recess 23 has a second inclined wall portion 231, one end of the second inclined wall portion 231 is disposed near the maximum distance from the opening of the first recess 23 to the fluid inlet 221, and in the axial direction of the fluid inlet passage 22, the distance between the side of the second inclined wall portion 231 near the fluid inlet 221 and the wall corresponding to the fluid inlet passage 22 is smaller than the distance between the side of the second inclined wall portion 231 far from the fluid inlet 221 and the wall corresponding to the fluid inlet passage 22, so that the impurities filtered by the first filter mesh 32 are more likely to enter the first recess 23.

The size of the opening of the first concave portion 23 and the positional relationship between the top wall of the main body portion 311 facing the fluid inlet 221 and the first concave portion 23 may be set according to specific situations, for example, the flow rate of the heat exchange medium, the size of the filtered impurities, and the like, and will not be described herein again.

Of course, the intersection line of the second inclined wall 231 and the first surface may be a line segment, an inward concave curve or an outward convex curve, which is not described herein again.

The seat body part 2 comprises a plurality of convex parts 25, the convex parts 25 protrude out of the inner wall of the fluid inlet channel 22, the plurality of convex parts 25 are uniformly arranged along the circumferential direction of the first cavity 21, and the first support 31 is supported on the plurality of convex parts 25.

Referring to fig. 4, in the axial direction of the fluid inlet passage 22, the top wall of the main body portion 311 facing the fluid inlet 221 is located between the position where the opening of the first recess 23 is at the minimum distance from the fluid inlet 221 and the position where the opening of the first recess 23 is at the maximum distance from the fluid inlet 221, that is, the side wall of the main body portion 311 facing the opening of the first recess 23 blocks off part of the opening of the first recess 23, preventing the foreign substances entering the first recess 23 from flowing out of the first recess 23 again, and the wall portion corresponding to the opening of the first recess 23 may be disposed perpendicular to the axis of the fluid inlet passage 22, facilitating the processing of the first recess 23 and saving cost.

Referring to fig. 5 to 8, the first filter 32 is planar, the upper surface of the first filter 32 and the top wall of the main body 311 facing the fluid inlet 221 are substantially located on the same plane, the projection of the opening of the first concave portion 23 on the projection plane is arc-shaped, the central angle of the arc-shaped projection is θ, θ is greater than 0 ° < θ is less than or equal to 90 °, and impurities can enter the first concave portion 23 conveniently.

Referring to fig. 1, the valve core assembly has a throttle hole 41, a portion of the valve core assembly corresponding to the throttle hole 41 is in sealing fit with an inner wall of the first cavity 21, the heat exchange device includes a second filter assembly 5, the second filter assembly 5 is fixed to a wall portion of the first cavity 21 in a sealing manner, the second filter assembly 5 includes a second filter screen, and meshes of the second filter screen communicate with the throttle hole 41 and the first pore channels 11, so that impurities are prevented from blocking a flow channel in the heat exchange core 1.

The seat body component 2 further comprises a second concave portion, the second concave portion is recessed in a wall portion corresponding to the first cavity 21, a portion, which defines that the wall portion corresponding to the first cavity 21 is hermetically fixed to the second filter assembly, is a second fixing portion, an opening of the second concave portion is adjacent to the second fixing portion, and compared with the second fixing portion, the opening of the second concave portion is close to the throttle hole 41, so that the accumulation of impurities filtered by the second filter screen in the second filter assembly is reduced.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A heat exchange device comprises a heat exchange core body, wherein the heat exchange core body comprises a first fluid channel and a second fluid channel which are isolated from each other, the heat exchange device further comprises a seat body component, the seat body component is fixedly connected with the heat exchange core body, the heat exchange device further comprises a valve core component, the seat body component is provided with a first cavity, part of the valve core component is accommodated in the first cavity, and the heat exchange device is characterized in that,

the seat body part is provided with a fluid inlet channel, the fluid inlet channel comprises a fluid inlet and a first interface, the first interface is communicated with the first cavity, the first fluid channel comprises a first hole, the heat exchange device further comprises a first filter assembly, the first filter assembly is fixed with the wall part corresponding to the fluid inlet channel in a sealing way, the first filter assembly comprises a first filter screen, at least part of the first filter screen is positioned in the fluid inlet channel, and the mesh of the first filter screen is communicated with the fluid inlet and the first interface;

the seat body component further includes a first recess recessed in a wall portion corresponding to the fluid inlet channel, a portion of the wall portion corresponding to the fluid inlet channel, which is fixed to the first filter assembly in a sealing manner, is defined as a first fixing portion, an opening of the first recess is adjacent to the first fixing portion, and the opening of the first recess is closer to the fluid inlet than the first fixing portion.

2. The heat exchange device of claim 1, wherein the first filter assembly comprises a first bracket, the first filter screen is fixedly connected with the first bracket, the first bracket comprises a main body part, the main body part is fixed with a wall part corresponding to the fluid inlet channel in a sealing manner, in the axial direction of the fluid inlet channel, the top wall of the main body part facing the fluid inlet is lower than the position where the distance between the opening of the first recess and the fluid inlet is the smallest, and the top wall of the main body part facing the fluid inlet is not lower than the position where the distance between the opening of the first recess and the fluid inlet is the largest.

3. The heat exchange device of claim 2, wherein in the axial direction of the fluid inlet channel, the first filter is convex toward a direction away from the heat exchange core, one of the planes defining the axis perpendicular to the fluid inlet channel is a projection plane, and a projection of a cross section of the first filter away from the heat exchange core on the projection plane is located within a projection of a cross section of the first filter close to the heat exchange core on the projection plane.

4. The heat exchange device of claim 3, wherein the first support further comprises a connection portion, the first filter is fixedly connected with the main body portion and/or the connection portion, the connection portion has a first inclined wall portion, and a distance between a wall portion of the first inclined wall portion, which is close to the fluid inlet side and corresponds to the fluid inlet passage, is greater than a distance between a wall portion of the first inclined wall portion, which is away from the fluid inlet side and corresponds to the fluid inlet passage, in an axial direction of the fluid inlet passage.

5. A heat exchange device according to claim 4, wherein one of the faces defining an axis passing through the fluid inlet passage is a first face, and the intersection of the first inclined wall portion and the first face is a line segment, a concave curve or a convex curve.

6. The heat exchange device according to claim 5, wherein the first recess has a second inclined wall portion having one end disposed near a position of the opening of the first recess where the distance from the fluid inlet is largest, and the distance between the second inclined wall portion near the fluid inlet side and a wall portion corresponding to the fluid inlet passage is smaller than the distance between the second inclined wall portion away from the fluid inlet side and the wall portion corresponding to the fluid inlet passage in the axial direction of the fluid inlet passage.

7. The heat exchange device of claim 2, wherein the first filter is planar, and an upper surface of the first filter is substantially planar with a top wall of the main body portion facing the fluid inlet.

8. The heat exchange device of claim 7, wherein one of the planes defining the axis perpendicular to the fluid inlet channel is a projection plane, the projection of the opening of the first concave portion on the projection plane is an arc, the central angle of the arc projection is θ, and 0 ° < θ ≦ 90 °.

9. The heat exchange device according to any one of claims 1 to 8, wherein the valve core assembly has an orifice, a portion of the valve core assembly corresponding to the orifice is in sealing engagement with an inner wall of the first chamber, the heat exchange device comprises a second filter assembly, the second filter assembly is fixed in sealing engagement with a wall portion corresponding to the first chamber, the second filter assembly comprises a second filter screen, and meshes of the second filter screen communicate with the orifice and the first hole passage.

10. The heat exchange device of claim 9, wherein the housing member further comprises a second recess recessed in a corresponding wall portion of the first chamber, the portion of the corresponding wall portion of the first chamber defined to be sealingly secured to the second filter assembly being a second securing portion, an opening of the second recess being adjacent to the second securing portion, and the opening of the second recess being closer to the orifice hole than the second securing portion.

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