CN217004009U - Heat exchanger - Google Patents

Abstract

The utility model discloses a heat exchanger, which comprises: a heat exchanger body comprising one or more heat exchange structures; and a base plate to which the heat exchanger body is fixed. The base plate is provided with one or more first mounting holes, a protruding part is arranged on the base plate corresponding to each first mounting hole, the protruding part is provided with a second mounting hole, and a nut connecting piece is arranged in the corresponding first mounting hole and the second mounting hole.

Description

Heat exchanger

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a heat exchanger.

Background

Heat exchangers, such as cooling devices, are important components of vehicle cooling systems, for example, for cooling oil with an increased temperature in a vehicle when the vehicle is running, so as to prevent the oil from affecting the normal operation of the vehicle due to the excessive temperature. In the prior art, a vehicle cooling system typically includes a heat exchanger and a module to be cooled, such as an oil module. The heat exchanger generally comprises a heat exchanger body and a base plate, and the heat exchanger body is usually secured to the base plate by suitable means. Further, the heat exchanger is typically screwed to the module to be cooled by means of a base plate. In addition, a rivet nut is usually used on the base plate to fixedly connect the heat exchanger and the module to be cooled.

However, in the prior art, the rivet nut has a small fracture torsion, and thus may affect the strength of the fixed connection of the heat exchanger and the module to be cooled, and in particular, in the case where the module to be cooled is an oil module, accidental fracture of the rivet nut may also cause a problem of oil leakage between the sealing surfaces of the heat exchanger and the oil module.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a heat exchanger to make the fixed connection between the heat exchanger and the module to be cooled more stable and reliable,

specifically, the present invention provides a heat exchanger comprising: a heat exchanger body comprising one or more heat exchange structures; and a base plate to which the heat exchanger body is fixed. The base plate is provided with one or more first mounting holes, a protruding part is arranged on the base plate corresponding to each first mounting hole, the protruding part is provided with a second mounting hole, and a nut connecting piece is arranged in the corresponding first mounting hole and the second mounting hole.

In the above heat exchanger, the base plate is provided with one or more first mounting holes, the protrusion having a second mounting hole is correspondingly provided on the base plate, and the nut connector is provided in the corresponding first mounting hole and the second mounting hole, so that when the heat exchanger and the module to be cooled are connected via the screw and the nut connector, the fracture torsion of the nut connector can be effectively increased, thereby making the fixed connection between the heat exchanger and the module to be cooled more stable and reliable.

In one embodiment, the nut connector is a clinch nut.

In one embodiment, the protrusion has an annular shape and is configured such that the first mounting hole and the second mounting hole are coaxially disposed.

In one embodiment, the projection is a brazed ring.

In one embodiment, the brazing ring is fixed to the side of the base plate facing the heat exchanger body by welding. Additionally or alternatively, the brazing ring may also be fixed to the side of the base plate remote from the heat exchanger body.

In one embodiment, the substrate is provided with three first mounting holes.

In one embodiment, the protrusion is integrally formed with the substrate.

In one embodiment, the diameter of the second mounting hole is larger than the diameter of the first mounting hole

In one embodiment, an edge of the protrusion facing the first mounting hole and the nut coupler is provided with a chamfer.

In one embodiment, the chamfer has a size of 0.3 mm.

In the heat exchanger provided by the utility model, the base plate is provided with one or more first mounting holes, the protrusion part with the second mounting hole is correspondingly arranged on the base plate, and the nut connecting piece is arranged in the corresponding first mounting hole and the second mounting hole, so that when the heat exchanger and the module to be cooled are connected through the screw and the nut connecting piece, the fracture torsion of the nut connecting piece can be effectively improved, and the fixed connection of the heat exchanger and the module to be cooled is more stable and reliable.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and are not intended to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 schematically shows a perspective view of a heat exchanger according to an embodiment of the present invention.

Fig. 2 schematically shows a perspective structure view of a connection part according to an embodiment of the present invention.

Fig. 3 schematically shows a cross-sectional structure diagram of the connection portion in fig. 2.

Fig. 4 schematically shows a partial enlarged schematic view at a in fig. 3.

Reference numerals:

100 heat exchanger

110 heat exchanger body

120 substrate

121 first mounting hole

122 projecting part

123 second mounting hole

124 nut connector

125 screw

R chamfer

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, fig. 1 schematically shows a perspective view of a heat exchanger according to an embodiment of the present invention.

As shown in fig. 1, a heat exchanger 100 is provided. The heat exchanger 100 generally comprises: a heat exchanger body 110, the heat exchanger body 110 comprising one or more heat exchange structures; and a base plate 120, the heat exchanger body 110 being fixed to the base plate 120. In one embodiment, one or more of the heat exchange structures may be a cooling water passage or an oil passage, wherein the cooling water passage may be in fluid communication with a cooling water pipe and the oil passage may be in fluid communication with an oil module to exchange heat to oil in the oil module to cool the oil.

Further, referring to fig. 2 to 3, fig. 2 schematically shows a perspective structure view of a connection portion according to an embodiment of the present invention, and fig. 3 schematically shows a cross-sectional structure view of the connection portion in fig. 2.

As shown in fig. 1-3, the base plate 120 is provided with one or more first mounting holes (3 visible in fig. 1) 121 for providing a nut connector as described below. It should be appreciated that although only 3 first mounting holes 121 are shown in fig. 1, fewer than 3 or more than 3 first mounting holes 121 may be provided on the substrate 120, depending on design requirements. Furthermore, these first mounting holes 121 are generally arranged such that the base plate 120 is substantially uniformly stressed after the base plate 120 is coupled to the oil module.

Further, on the substrate 120, a protrusion 122 is provided corresponding to each of the first mounting holes 121, and the protrusion 122 has a second mounting hole 123. In addition, a nut coupling member 124 is disposed in the corresponding first and second mounting holes 121 and 123.

In one embodiment, when the heat exchanger 100 is connected to a module to be cooled (not shown), as shown in fig. 1, a screw 125 for example passes through a corresponding mounting hole on the module to be cooled, passes through the corresponding first mounting hole 121 and the second mounting hole 123 on the heat exchanger 100, and is in threaded connection with a corresponding nut connector 124, since the nut connector 124 is disposed in the first mounting hole 121 and the second mounting hole 123, the fracture torsion of the nut connector 124 can be effectively increased, and thus the connection strength between the heat exchanger 100 and the module to be cooled is increased, so that the fixed connection between the heat exchanger 100 and the module to be cooled is more stable and reliable.

In a preferred embodiment of the present invention, the nut coupler 124 may be a clinch nut, as shown in fig. 2-3. As is well known to those skilled in the art, the clinch nut has a circular shape, and has embossing teeth and a guide groove at one end thereof, and the embossing teeth of the clinch nut are pressed into, for example, the first mounting hole 121 of the base plate 120 (generally, the diameter of the first mounting hole 121 is slightly smaller than the embossing teeth of the clinch nut), and the embossing teeth of the clinch nut are pressed into the base plate 120 by pressure to plastically deform the periphery of the first mounting hole 121, and the deformed object is pressed into the guide groove, thereby generating a locking effect.

Further, the protrusion 122 may have a ring shape, and may be configured such that the first mounting hole 121 and the second mounting hole 123 are coaxially disposed. Preferably, the protrusion 122 may be a brazing ring. The brazing ring may be fixed to a side of the base plate 120 facing the heat exchanger body 110 by welding or the like.

Thus, as shown in fig. 2 to 3, by providing a brazing ring on the base plate 120 coaxially with the first mounting hole 121, fixing the brazing ring to the base plate 120 by welding or the like, and then pressing in a clinch nut, a connection portion is formed on the base plate 120, which can be used for subsequent insertion and screwing of a screw 125 (shown by a dotted line in fig. 3). Therefore, the fracture torsion of the pressure riveting nut can be effectively improved, the connection strength of the heat exchanger 100 and the module to be cooled is improved, and the heat exchanger 100 and the module to be cooled are more stable and reliable in fixed connection.

In a non-limiting embodiment of the utility model, the breaking torque of the clinch nut can be increased from about 6NM to a minimum of 15 NM by pressing the clinch nut into the brazing ring and the first mounting hole as above, whereby it can be seen that the breaking torque of the clinch nut is greatly increased, thereby making the fixed connection of the heat exchanger to the module to be cooled more stable and reliable.

Furthermore, in some embodiments, the protrusion 122 may also be integrally formed with the substrate 120. Therefore, the fracture torsion of the nut connecting piece 124 can be effectively improved, so that the fixed connection between the heat exchanger 100 and the module to be cooled is more stable and reliable.

Further, in some embodiments, the diameter of the second mounting hole is larger than the diameter of the first mounting hole to facilitate placement of the nut coupler 124, such as a clinch nut.

Referring now to fig. 4, fig. 4 schematically illustrates a partial enlarged schematic view at a in fig. 3.

As shown in fig. 4, in some embodiments, a chamfer R may be further provided at an edge of the protrusion 122 facing the first mounting hole 121 and the nut coupler 124. Further, the size of the chamfer may be in the range of about 0.1mm to 0.5mm, and preferably, the size of the chamfer may be 0.3 mm.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A heat exchanger, comprising: a heat exchanger body comprising one or more heat exchange structures; and a base plate to which the heat exchanger body is fixed,

the base plate is provided with one or more first mounting holes, a protruding part is arranged on the base plate corresponding to each first mounting hole, the protruding part is provided with a second mounting hole, and a nut connecting piece is arranged in the corresponding first mounting hole and the corresponding second mounting hole.

2. The heat exchanger of claim 1, wherein the nut connector is a clinch nut.

3. The heat exchanger of claim 1, wherein the protrusion has an annular shape and is configured such that the first mounting hole and the second mounting hole are coaxially disposed.

4. The heat exchanger of claim 3, wherein the protrusions are brazed rings.

5. The heat exchanger of claim 4, wherein the brazing ring is fixed by welding to a side of the base plate facing the heat exchanger body.

6. The heat exchanger of claim 1, wherein the base plate is provided with three of the first mounting holes.

7. The heat exchanger of claim 1, wherein the protrusion is integrally formed with the base plate.

8. The heat exchanger of claim 1, wherein the diameter of the second mounting hole is larger than the diameter of the first mounting hole.

9. The heat exchanger of claim 1, wherein edges of the protrusions facing the first mounting hole and the nut coupler are chamfered.

10. The heat exchanger of claim 9, wherein the chamfer has a size of 0.3 mm.

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