Heat exchanger

Abstract

The utility model provides a heat exchanger, which comprises two collecting pipes, a first heat exchanger, a second heat exchanger and a third heat exchanger, the two ends of each heat exchange pipe are communicated with the two corresponding collecting pipes respectively; the side plate is arranged at one end, in the axial direction, of the collecting pipe and located on the outer side of the heat exchange pipe, and the side plate extends in the first direction; the outer connecting pipe is communicated with the collecting pipe; at least part of the outer connecting pipes extend in the extending direction of the collecting pipes and / or the first direction. And the multiple fixing pieces are arranged at intervals in the extending direction of the outer connecting pipe, and each fixing piece is matched with the periphery of the outer connecting pipe in a limiting mode and fixedly connected with the side plate or the collecting pipe. The external connecting pipe is reliably fixed, the fixing strength and stability of the external connecting pipe outside the heat exchanger are improved, the external connecting pipe is prevented from being damaged and being disconnected from the outside of the heat exchanger, refrigerant leakage is avoided, and normal work of the heat exchanger is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a heat exchanger. Background Art

[0002] Existing heat exchangers usually include a header and a plurality of heat exchange tubes (e.g., flat tubes) connected between two headers, wherein the header is used to distribute and collect the heat exchange medium in the heat exchange tubes. When designing a multi-row heat exchanger, it is necessary to connect the outlet and / or inlet of the header of each row of heat exchangers through connecting pipes to achieve the flow of heat exchange medium from a header in one row of heat exchangers to a header in another row of heat exchangers.

[0003] Existing connecting pipes are usually long and in a suspended state, which makes the fixing strength of the connecting pipes on the outside of the heat exchanger low. Vibration or collision during the overall transportation and operation of the heat exchanger may cause damage to the connecting pipes and disconnection from the outside of the heat exchanger, thereby causing leakage of heat exchange media such as refrigerant and affecting the normal operation of the heat exchanger. Utility Model Content

[0004] The utility model provides a heat exchanger to solve the problem of low fixing strength of connecting pipelines outside the heat exchanger in the prior art.

[0005] In order to solve the above problems, the utility model provides a heat exchanger, comprising: two collecting pipes, the two collecting pipes are arranged at intervals along a first direction; a plurality of heat exchange tubes, the plurality of heat exchange tubes are arranged at intervals along the length direction of the collecting pipe, and the two ends of each heat exchange tube are respectively connected with the two corresponding collecting pipes; a side plate, arranged at one end of the collecting pipe in the axial direction and located on the outside of the heat exchange tube, the side plate is extended along the first direction; an external connecting pipe, connected with the collecting pipe; at least part of the external connecting pipe extends along the extension direction of the collecting pipe and / or the first direction; a plurality of fixing parts, the plurality of fixing parts are arranged at intervals along the extension direction of the external connecting pipe, each fixing part is matched with the outer peripheral limit of the external connecting pipe, and is fixedly connected to the side plate or the collecting pipe.

[0006] Furthermore, at least part of the fixing parts are fixedly connected to the side plate, the side plate has a matching part, the fixing parts have a limiting part, each limiting part and the matching part are correspondingly arranged to form a limiting cavity, the external connecting pipe is passed through the limiting cavity, and the inner wall of the limiting cavity is matched with the outer periphery of the external connecting pipe.

[0007] Furthermore, the fixing part includes a block body and a fixing part arranged on the block body, and the block body and the matching part are correspondingly arranged to form a limiting cavity; a concave cavity is recessed on the side of the matching part facing the block body, and the block body is arranged in the concave cavity and is fixed in contact with the inner wall of the concave cavity; the fixing part is located outside the concave cavity and is fixed by clamping and / or bonding to the outer wall of the matching part.

[0008] Furthermore, at least part of the fixing parts are fixedly connected to the side plates, the fixing parts include a block having a limiting cavity penetrating the block; the side plates have a matching portion having a concave cavity formed on one side of the matching portion facing the block; the block is snap-fitted and fixed in the concave cavity.

[0009] Furthermore, the fixing part also includes an opening and closing part arranged on the block, and a side of the block close to the matching part has an entrance connected to the limiting cavity. The opening and closing part is movably connected to the block and movably arranged at the entrance for opening and closing the entrance; wherein the opening and closing part has an open state and a closed state, wherein in the open state, the external connecting tube enters the limiting cavity from the entrance, and the outer periphery of the external connecting tube abuts and cooperates with the inner wall of the limiting cavity; in the closed state, the opening and closing part blocks the entrance.

[0010] Furthermore, the block has an empty slot spaced apart from the matching portion, the empty slot is arranged corresponding to the opening and closing portion, and at least a part of the opening and closing portion can be movably arranged in the empty slot.

[0011] Furthermore, the fixing piece is made of elastic material.

[0012] Further, the fixing member is fixed to the side plate or the header by bonding; and / or, the fixing member is fixed to the side plate or the header by bundling.

[0013] Furthermore, at least part of the fixing members are fixedly connected to the side panels, and the fixing members are projected onto the board surface of the side panels, and the projection of the fixing members does not exceed the board surface of the side panels.

[0014] Further, the fixing member includes a block body, the interior of the block body has at least two limiting cavities, the at least two limiting cavities are arranged at intervals, and cooperate with at least two external connecting tubes one-to-one to limit the external connecting tubes respectively; and / or, there are at least two external connecting tubes, and at least two external connecting tubes are connected with at least two collecting tubes one-to-one; at least a part of the multiple external connecting tubes are arranged in parallel; the axial direction of the connecting end of the external connecting tube and the collecting tube is perpendicular to the axial direction of the collecting tube; at least part of the fixing member is fixedly connected to the side plate, and the side plate has a matching portion, which abuts against the fixing member or the external connecting tube to support the external connecting tube.

[0015] Applying the technical solution of the utility model, the utility model provides a heat exchanger, comprising: two collecting pipes, the two collecting pipes are arranged at intervals along a first direction; a plurality of heat exchange tubes, the plurality of heat exchange tubes are arranged at intervals along the length direction of the collecting pipe, and the two ends of each heat exchange tube are respectively connected with the two corresponding collecting pipes; a side plate, arranged at one end of the collecting pipe in the axial direction and located on the outside of the heat exchange tube, the side plate is extended along the first direction; an external connecting pipe, connected with the collecting pipe; at least part of the external connecting pipe extends along the extension direction of the collecting pipe and / or the first direction; a plurality of fixing parts, the plurality of fixing parts are arranged at intervals along the extension direction of the external connecting pipe, each fixing part is matched with the outer peripheral limit of the external connecting pipe, and is fixedly connected to the side plate or the collecting pipe.

[0016] The utility model realizes reliable fixation of the external connecting pipe by setting a fixing piece to cooperate with the outer peripheral limit of the external connecting pipe and to be fixedly connected with the side plate or the header, thereby avoiding the external connecting pipe being in a hanging state, improving the fixing strength and stability of the external connecting pipe outside the heat exchanger, avoiding damage to the external connecting pipe and disconnection from the outside of the heat exchanger, thereby avoiding leakage of heat exchange media such as refrigerant and ensuring the normal operation of the heat exchanger; at the same time, the fixing piece can be subsequently set to adopt elastic materials, and the shock absorbing function of the elastic material effectively reduces the overall vibration and amplitude of the external connecting pipe when the heat exchanger is working, thereby effectively reducing noise and avoiding the problem of pipeline cracking; in addition, by setting the fixing piece to be fixedly connected with the side plate or the header, the time for installing and fixing the external connecting pipe is saved, thereby improving the assembly efficiency of the whole machine of the heat exchanger; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use; in addition, compared with the traditional screw installation fixing structure to fix the external connecting pipe and the welding fixing method of the external connecting pipe, the utility model can not only reduce the number of screws used and the number of welding times, reduce costs, but also simplify the installation process of the external connecting pipe and improve installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The external structure schematic diagram of the heat exchanger provided by the embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A local enlarged schematic diagram of the middle A;

[0020] Figure 3 The figure shows the internal structure diagram of the matching part and the fixing member provided in the first embodiment of the present utility model;

[0021] Figure 4 The figure shows the internal structure diagram of the matching part and the fixing member provided in the second embodiment of the present utility model;

[0022] Figure 5 The figure shows the internal structure diagram of the matching part and the fixing member provided in the third embodiment of the present utility model;

[0023] Figure 6 The figure shows the internal structure diagram of the matching part and the fixing member provided in the fourth embodiment of the present utility model;

[0024] Figure 7The figure shows the internal structure diagram of the matching part and the fixing member provided in the fifth embodiment of the present utility model;

[0025] Figure 8 A schematic diagram of the internal structure of the matching portion and the fixing member provided in the sixth embodiment of the present utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Collector;

[0028] 20. Heat exchange tube;

[0029] 30, side plate; 31, matching portion; 311, concave cavity;

[0030] 40. External connecting pipe;

[0031] 50. fixing part; 51. block; 511. limiting cavity; 52. fixing part; 53. opening and closing part; 54. empty slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] like Figures 1 to 8 As shown, an embodiment of the utility model provides a heat exchanger, comprising: two headers 10, the two headers 10 are arranged at intervals along a first direction; a plurality of heat exchange tubes 20, the plurality of heat exchange tubes 20 are arranged at intervals along the length direction of the header 10, and the two ends of each heat exchange tube 20 are respectively connected with the two corresponding headers 10; a side plate 30, which is arranged at one end of the header 10 in the axial direction and is located on the outside of the heat exchange tube 20, and the side plate 30 is extended along the first direction; an external connecting tube 40, which is connected with the header 10; at least part of the external connecting tube 40 extends along the extension direction of the header 10 and / or the first direction; a plurality of fixing members 50, the plurality of fixing members 50 are arranged at intervals along the extension direction of the external connecting tube 40, each fixing member 50 is matched with the outer peripheral limit of the external connecting tube 40, and is fixedly connected to the side plate 30 or the header 10.

[0034] Another embodiment of the utility model provides a heat exchanger, including: a collecting pipe 10; a plurality of heat exchange tubes 20, which are respectively connected to the collecting pipe 10; a side plate 30, which is arranged at one end of the collecting pipe 10 in the axial direction and is located on the outside of the heat exchange tube 20; an external connecting pipe 40, which is connected to the collecting pipe 10; the external connecting pipe 40 extends along the extension direction of the collecting pipe 10 and / or the extension direction of the side plate 30; a fixing member 50, which is limitedly matched with the outer periphery of the external connecting pipe 40 and is detachably fixedly connected to the side plate 30 or the collecting pipe 10 to fix the external connecting pipe 40; the fixing member 50 is made of elastic material.

[0035] It should be noted that: the connecting pipes in the prior art are usually fixed to the outside of the heat exchanger by welding and are in a suspended state, so that the fixing strength of the connecting pipes on the outside of the heat exchanger is low; the overall movement of the heat exchanger and the vibration or collision during operation may cause damage to the connecting pipes and disconnection from the outside of the heat exchanger, thereby causing leakage of heat exchange media such as refrigerant and affecting the normal operation of the heat exchanger; at the same time, because the connecting pipes are usually long, the overall vibration is strong and the amplitude is large when the heat exchanger is working, which generates noise and causes pipe cracking problems; in addition, during the assembly process of the heat exchanger, it takes a long time to fix the connecting pipes on the outside of the heat exchanger by welding, and the welding time of the connecting pipes is often longer than the overall installation time of the heat exchanger, which will reduce the assembly efficiency of the heat exchanger and is not conducive to the large-scale production of heat exchangers.

[0036] The utility model realizes reliable fixation of the external connecting tube 40 by setting the fixing member 50 to cooperate with the outer peripheral limit of the external connecting tube 40, and is fixedly connected to the side plate 30 or the collecting tube 10, thereby avoiding the external connecting tube 40 from being in a hanging state, improving the fixing strength and stability of the external connecting tube 40 on the outside of the heat exchanger, avoiding damage to the external connecting tube 40 and disconnection from the outside of the heat exchanger, thereby avoiding refrigerant leakage and ensuring the normal operation of the heat exchanger; at the same time, the fixing member 50 can be subsequently set to adopt elastic material, and the shock absorbing function of the elastic material effectively reduces the overall vibration and amplitude of the external connecting tube 40 when the heat exchanger is working , thereby effectively reducing noise and avoiding the problem of pipeline cracking; in addition, the fixing piece 50 can be detachably fixedly connected to the side plate 30 or the collecting pipe 10, which saves the time for installing and fixing the external connecting pipe 40, thereby improving the overall assembly efficiency of the heat exchanger; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use; in addition, compared with the traditional screw installation and fixing structure to fix the external connecting pipe 40 and the welding fixing method of the external connecting pipe 40, the utility model can not only reduce the number of screws used and the number of welding times, thereby reducing costs, but also simplify the installation process of the external connecting pipe 40, thereby improving installation efficiency.

[0037] like Figure 3 , Figure 4 , Figure 5, Figure 6 , Figure 7 and Figure 8 As shown, in one embodiment of the utility model, at least part of the fixing member 50 is fixedly connected to the side plate 30, the side plate 30 has a matching portion 31, and the fixing member 50 has a limiting portion. Each limiting portion and the matching portion 31 are correspondingly arranged to form a limiting cavity 511, the external connecting tube 40 is passed through the limiting cavity 511, and the inner wall of the limiting cavity 511 is limitedly matched with the outer periphery of the external connecting tube 40.

[0038] In another embodiment of the utility model, the side plate 30 has a matching portion 31, and the fixing member 50 has a limiting cavity 511 inside. The inner wall of the limiting cavity 511 abuts against the outer periphery of the external connecting tube 40 to limit the external connecting tube 40; the fixing member 50 and the matching portion 31 are limited and matched. This arrangement not only ensures the simplification of the structure of the side plate 30 and the fixing member 50, but also enables the fixing member 50 to effectively fix the external connecting tube 40.

[0039] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the fixing member 50 adopts a fully enclosed method to fix the external connecting tube 40, and the matching portion 31 can effectively raise the external connecting tube 40; the matching portion 31 can be fixed to the plate surface of the side plate 30 by welding or other methods.

[0040] like Figure 6 , Figure 7 and Figure 8 As shown, the fixing member 50 includes a block 51 and a fixing portion 52 disposed on the block 51. The block 51 and the matching portion 31 are correspondingly matched to form a limiting cavity 511. The fixing portion 52 is fixed to the matching portion 31 by clamping or bonding to fix the external connecting pipe 40 to the side plate 30. By setting the fixing portion 52 to be fixed to the matching portion 31 by clamping or bonding, the fixing strength of the fixing portion on the matching portion 31 is further improved, thereby ensuring the reliable fixation of the external connecting pipe 40 on the side plate 30.

[0041] In a specific embodiment of the present invention, all contact surfaces of the fixing member 50 and the matching portion 31 may be optionally provided with adhesive to bond and fix the fixing member 50 to the matching portion 31; the snap-on method can be mixed with the bonding method to further improve the connection strength.

[0042] like Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, a concave cavity 311 is formed on one side of the mating portion 31 facing the block 51, and the block 51 is disposed in the concave cavity 311 and abuts against the inner wall of the concave cavity 311 to fix the block 51 in the concave cavity 311; Figure 7and Figure 8 As shown, the fixing portion 52 is located outside the cavity 311 and is fixed by clamping or bonding with the outer wall of the matching portion 31. The cavity 311 is provided to facilitate reliable fixing and quick installation of the block 51 in the cavity 311, and to facilitate clamping and / or bonding of the fixing portion 52 with the outer wall of the matching portion 31.

[0043] like Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, at least part of the fixing member 50 is fixedly connected to the side plate 30, and the matching portion 31 has a concave cavity 311 inside; the fixing member 50 includes a block 51, and the block 51 has a limiting cavity 511 penetrating the block 51; the side plate 30 has a matching portion 31, and the matching portion 31 is concavely provided with a concave cavity 311 on one side facing the block 51; the block 51 is clamped in the concave cavity 311 to fix the block 51 in the concave cavity 311. By providing the concave cavity 311, it is convenient to reliably fix and quickly install the block 51 in the concave cavity 311, and the protection of the block 51 and the external connecting pipe 40 is realized.

[0044] It should be noted that: in actual use, the size and shape of the cavity 311, the block 51 and the fixing portion 52 can be flexibly set according to actual use requirements to improve applicability.

[0045] like Figure 4 , Figure 5 and Figure 8 As shown, the fixing member 50 also includes a block 51 and an opening and closing portion 53 arranged on the block 51. A limiting cavity 511 is provided inside the block 51. The block 51 has an entrance connected to the limiting cavity 511 on one side of the block 51 close to the matching portion 31. The opening and closing portion is movably connected to the block 51 and movably arranged at the entrance to open and close the entrance. The opening and closing portion 53 has an open state and a closed state through elastic deformation. In the open state, the external connecting tube 40 enters the limiting cavity 511 from the entrance, and the outer periphery of the external connecting tube 40 abuts against the inner wall of the limiting cavity 511. In the closed state, the opening and closing portion 53 blocks the entrance to constrain the external connecting tube 40. By controlling the elastic deformation of the opening and closing portion 53, the fixing member 50 can be firmly limited to the external connecting tube 40, and the manual installation between the external connecting tube 40 and the fixing member 50 is facilitated.

[0046] like Figure 1 and Figure 2As shown, there are at least two external connecting pipes 40, and at least two external connecting pipes 40 are respectively connected to the header 10; the external connecting pipes 40 extend along the extension direction of the side plate 30, and at least a portion of the plurality of external connecting pipes 40 are arranged in parallel; the block 51 has at least two limiting cavities 511 inside, and the at least two limiting cavities 511 are arranged at intervals and correspond to the at least two external connecting pipes 40 one by one; there are at least two opening and closing parts 53, and they are arranged one by one with the at least two limiting cavities 511; wherein, as Figure 5 and Figure 8 As shown, there is an empty slot 54 between two adjacent opening and closing parts 53, and the empty slot 54 is used to accommodate the deformation of the opening and closing parts 53 during elastic deformation, so as to adjust the state of the opening and closing parts 53. This arrangement realizes reliable fixation and effective support for multiple external connecting pipes 40; by providing the empty slot 54, it is more convenient to manually adjust the opening and closing parts 53 to produce elastic deformation, thereby facilitating the opening and closing parts 53 to quickly switch between the open state and the closed state.

[0047] Optionally, the fixing member 50 is made of elastic material; the fixing member 50 is made of at least one of pearl cotton, sponge, and rubber. By setting the material of the fixing member 50, the working reliability of the fixing member 50 is guaranteed, the processing and molding of the fixing member 50 is facilitated, and the cost is effectively reduced.

[0048] It should be noted that: when the operating temperature of the heat exchanger is low, the fixing part 50 can also be set to use plastic material to facilitate the integrated processing and molding of the fixing part 50; when the operating temperature of the heat exchanger is high, in order to consider safety, it is necessary to pay attention to the fireproof characteristics and high temperature resistance of the fixing part 50 to ensure that the fixing part 50 works reliably.

[0049] like Figure 1 and Figure 2 As shown, the fixing member 50 is fixed to the side plate 30 or the header 10 by bonding; and / or, the fixing member 50 is fixed to the side plate 30 or the header 10 by binding with a band. By setting the bonding method, compared with the traditional screw installation fixing structure to fix the external connecting tube 40 and the welding fixing method of the external connecting tube 40, not only the number of screws used and the number of welding times can be reduced, the cost can be reduced, and the installation process of the external connecting tube 40 can be simplified, and the installation efficiency can be improved.

[0050] It is worth noting that: in a specific embodiment of the present invention, the bonding method can be a detachable bonding method, that is, by setting the type and bonding force of the bonding glue, it can be flexibly adapted to different usage scenarios and facilitate repeated disassembly and adjustment.

[0051] It should be noted that: in a specific embodiment of the present invention, the fixing member 50 is fixed to the side panel 30 by binding with a strap, which includes the following steps: 1. First, determine the position and fixing point where the fixing member 50 needs to be fixed, and then place the fixing member 50 on the side panel 30 and adjust the position; 2. Select a cable tie (a type of strap) of appropriate length, pass the cable tie through the fixing hole or fixing ring on the fixing member 50 and / or the side panel 30, and then pass the end of the cable tie through the lock of the cable tie; 3. Tighten the cable tie with appropriate force to ensure that the fixing member 50 is firmly fixed and will not loosen; 4. Cut off the excess cable tie to ensure that it looks neat after the entire fixing process is completed; 5. Check the fixing state of the fixing member 50 on the side panel 30 to ensure that there is no loosening or displacement.

[0052] like Figure 1 and Figure 2 As shown, there are multiple fixing members 50, and the multiple fixing members 50 are arranged at intervals along the extension direction of the external connecting tube 40 to jointly limit the external connecting tube 40; and / or, there are at least two external connecting tubes 40, and at least two external connecting tubes 40 are respectively connected with at least two collecting pipes 10 in a one-to-one correspondence; at least a part of the multiple external connecting tubes 40 is arranged in parallel; the fixing member 50 includes a block 51, and the block 51 has at least two limiting cavities 511 inside, and the at least two limiting cavities 511 are arranged at intervals and cooperate with at least two external connecting tubes 40 in a one-to-one correspondence to respectively limit the external connecting tubes 40. By arranging multiple fixing members 50 to be arranged at intervals along the extension direction of the external connecting tube 40, reliable fixing and effective support of each position of the longer external connecting tube 40 are achieved, thereby avoiding the external connecting tube 40 from being in a suspended state, improving the fixing strength and stability of the external connecting tube 40 outside the heat exchanger, and avoiding damage to the external connecting tube 40 and disconnection from the outside of the heat exchanger.

[0053] Specifically, at least part of the fixing member 50 is fixedly connected to the side plate 30, and the fixing member 50 is projected onto the plate surface of the side plate 30, and the projection of the fixing member 50 does not exceed the plate surface of the side plate 30; the side plate 30 has a matching portion 31, and the matching portion 31 abuts against the fixing member 50 or the external connecting tube 40 to support the external connecting tube 40; the axial direction of the connecting end of the external connecting tube 40 and the collecting tube 10 is perpendicular to the axial direction of the collecting tube 10.

[0054] By setting the projection of the fixing part 50 not to exceed the plate surface of the side plate 30, the fixing part 50 is made more compact, and the space occupied is minimized to the maximum extent, thereby facilitating the use of a miniaturized heat exchanger; by setting the axial direction of the connecting end of the external connecting pipe 40 and the collecting pipe 10 to be perpendicular to the axial direction of the collecting pipe 10, it not only ensures the smooth flow of the heat exchange medium in the external connecting pipe 40 and the collecting pipe 10, but also effectively avoids the collecting pipe 10 from being obstructed when the external connecting pipe 40 is installed, thereby improving the overall installation efficiency of the heat exchanger.

[0055] In summary, the utility model provides a heat exchanger, which realizes reliable fixation of the external connecting pipe 40 by setting a fixing member 50 to cooperate with the outer peripheral limit of the external connecting pipe 40, and is detachably fixedly connected to the side plate 30 or the collecting pipe 10, thereby avoiding the external connecting pipe 40 from being in a hanging state, improving the fixing strength and stability of the external connecting pipe 40 on the outside of the heat exchanger, avoiding damage to the external connecting pipe 40 and disconnection from the outside of the heat exchanger, thereby avoiding refrigerant leakage and ensuring the normal operation of the heat exchanger; at the same time, by setting the fixing member 50 to adopt elastic material, the shock absorbing function of the elastic material effectively reduces the external connecting pipe 40 in the heat exchanger operation The overall vibration and amplitude during operation are reduced, thereby effectively reducing noise and avoiding the problem of pipeline cracking; in addition, by providing a detachable fixed connection between the fixing piece 50 and the side plate 30 or the collecting pipe 10, the time for installing and fixing the external connecting pipe 40 is saved, thereby improving the overall assembly efficiency of the heat exchanger; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use; in addition, compared with the traditional screw installation and fixing structure to fix the external connecting pipe 40 and the welding fixing method of the external connecting pipe 40, the utility model can not only reduce the number of screws used and the number of welding times, thereby reducing costs, but also simplify the installation process of the external connecting pipe 40, thereby improving installation efficiency.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0060] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat exchanger, characterized in that: include: Two collecting pipes (10), the two collecting pipes (10) being arranged at intervals along a first direction; a plurality of heat exchange tubes (20), wherein the plurality of heat exchange tubes (20) are arranged at intervals along the length direction of the header (10), and both ends of each heat exchange tube (20) are respectively connected to two corresponding headers (10); a side plate (30) arranged at one end of the header (10) in the axial direction and located outside the heat exchange tube (20), the side plate (30) extending along the first direction; an external connecting pipe (40) connected to the header (10); at least a portion of the external connecting pipe (40) extends along an extension direction of the header (10) and / or the first direction; A plurality of fixing members (50) are arranged at intervals along the extension direction of the external connecting tube (40), and each fixing member (50) is limitedly matched with the outer periphery of the external connecting tube (40) and is fixedly connected to the side plate (30) or the collecting tube (10).

2. The heat exchanger according to claim 1, characterized in that: At least part of the fixing member (50) is fixedly connected to the side plate (30), the side plate (30) has a matching portion (31), the fixing member (50) has a limiting portion, each limiting portion and the matching portion (31) are correspondingly arranged to form a limiting cavity (511), the external connecting tube (40) is passed through the limiting cavity (511), and the inner wall of the limiting cavity (511) is limitedly matched with the outer periphery of the external connecting tube (40).

3. The heat exchanger according to claim 2, characterized in that: The fixing member (50) comprises a block body (51) and a fixing portion (52) arranged on the block body (51); the block body (51) and the matching portion (31) are arranged to correspond to and surround the limiting cavity (511); a concave cavity (311) is concavely provided on one side of the matching portion (31) facing the block body (51); the block body (51) is arranged in the concave cavity (311) and is abutted and fixed to the inner wall of the concave cavity (311); the fixing portion (52) is located outside the concave cavity (311) and is clamped and / or adhesively fixed to the outer wall of the matching portion (31).

4. The heat exchanger according to claim 1, characterized in that: At least part of the fixing member (50) is fixedly connected to the side plate (30), and the fixing member (50) comprises a block (51), and the block (51) has a limiting cavity (511) penetrating the block (51); the side plate (30) has a matching portion (31), and a concave cavity (311) is concavely provided on one side of the matching portion (31) facing the block (51); the block (51) is snap-fitted and fixed in the concave cavity (311).

5. The heat exchanger according to claim 4, characterized in that: The fixing member (50) also includes an opening and closing portion (53) arranged on the block (51), and the block (51) has an entrance connected to the limiting cavity (511) on one side close to the matching portion (31). The opening and closing portion is movably connected to the block (51) and can be movably arranged at the entrance for opening and closing the entrance; wherein the opening and closing portion (53) has an open state and a closed state, and in the open state, the external connecting tube (40) enters the limiting cavity (511) from the entrance, and the outer periphery of the external connecting tube (40) abuts against the inner wall of the limiting cavity (511); in the closed state, the opening and closing portion (53) blocks the entrance.

6. The heat exchanger according to claim 5, characterized in that The block (51) has a hollow groove (54) spaced apart from the matching portion (31); the hollow groove (54) is arranged corresponding to the opening and closing portion; at least a portion of the opening and closing portion (53) is movably arranged in the hollow groove (54).

7. The heat exchanger according to claim 1, characterized in that The fixing member (50) is made of elastic material.

8. The heat exchanger according to claim 1, characterized in that The fixing member (50) is adhesively fixed to the side plate (30) or the header (10); and / or the fixing member (50) is bundled and fixed to the side plate (30) or the header (10).

9. The heat exchanger according to claim 2, characterized in that: At least part of the fixing member (50) is fixedly connected to the side plate (30), and the fixing member (50) is projected onto the plate surface of the side plate (30), and the projection of the fixing member (50) does not exceed the plate surface of the side plate (30).

10. The heat exchanger according to claim 1, characterized in that The fixing member (50) comprises a block (51), wherein the block (51) has at least two limiting cavities (511) inside, and the at least two limiting cavities (511) are arranged at intervals and cooperate with at least two external connecting pipes (40) in a one-to-one correspondence to respectively limit the external connecting pipes (40); and / or, There are at least two external connecting tubes (40), and at least two of the external connecting tubes (40) are respectively connected to at least two of the collecting tubes (10) in a one-to-one correspondence; at least a portion of the plurality of external connecting tubes (40) are arranged in parallel; the axial direction of the connecting end of the external connecting tube (40) and the collecting tube (10) is perpendicular to the axial direction of the collecting tube (10); At least part of the fixing member (50) is fixedly connected to the side plate (30), and the side plate (30) has a matching portion (31), and the matching portion (31) abuts against the fixing member (50) or the external connecting pipe (40) to support the external connecting pipe (40).

Images