Water chamber structure for automobile heat exchanger

Abstract

The utility model discloses a water chamber structure for automobile heat exchanger belongs to vehicle air conditioning technical field, the utility model discloses a water chamber body and heat exchange pipe, wherein, water chamber body divide into inlet water chamber and outlet water chamber, inlet water chamber and outlet water chamber respectively have liquid inlet and liquid outlet, be equipped with a stopper in the inlet water chamber, the stopper is located on the water outlet path of liquid inlet, the heat exchange pipe includes flat tube body and the heat exchange channel that surrounds by flat tube body, wherein, the outer peripheral wall of flat tube body is equipped with a plurality of whole concave disturbance part. In the utility model, through the stopper setting, can effectively prevent the direct impact of coolant to heat exchange pipe, to prolong its life, at the same time, make the coolant more dispersedly enter the heat exchange pipe. In addition, through the setting of disturbance part, the flow of coolant can be disturbed and the contact area between the coolant and the inner wall of the heat exchange pipe is increased, which can effectively improve the heat exchange effect.

Description

Technical Field

[0001] This utility model belongs to the field of automotive air conditioning technology, and more specifically, relates to a water chamber structure for automotive heat exchangers. Background Technology

[0002] The automotive heater heat exchanger is a core component of the car's air conditioning system. With the engine running and the blower operating, heat exchange through the heat exchanger raises the temperature of the passenger compartment, thus improving driving comfort. The heat exchanger is one of the components of the automotive air conditioning system, primarily used for heating the passenger compartment. Its working principle involves heat exchange between an aluminum core and the engine coolant flowing inside; the hot air is then blown out through the vents by the blower.

[0003] Currently, conventional water chamber structures on the market typically allow coolant to directly enter the inlet chamber from the inlet area. This can cause impact on the flat tube, especially at weak welded areas. Prolonged impact accelerates tube damage, leading to coolant leakage and reducing product lifespan. Furthermore, direct coolant entry into the flat tube increases its flow rate, which is detrimental to heat exchange efficiency.

[0004] Therefore, a water chamber structure needs to be designed to effectively prevent the coolant from directly impacting the flat tube during high flow rates; at the same time, it should reduce the flow velocity of the coolant in the flat tube, which is conducive to sufficient heat exchange in the ventilation parts and improves the heating effect. Utility Model Content

[0005] 1. The problem to be solved

[0006] In view of at least some of the problems existing in the prior art, this utility model proposes a water chamber structure for automotive heat exchangers. The purpose is to solve the problem that the existing heat exchanger water chamber structure is prone to impacting the flat tube, which not only reduces the service life of the product, but also hinders the improvement of heat exchange effect.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0009] The present invention provides a water chamber structure for an automotive heat exchanger, comprising a water chamber body and several heat exchange tubes connected to the inner cavity of the water chamber body.

[0010] The water chamber body is provided with a partition, which divides the water chamber body into an inlet chamber and an outlet chamber; the inlet and outlet chambers are respectively connected to a liquid inlet and a liquid outlet;

[0011] The water inlet chamber is equipped with a stop block, which is located on the water outlet path of the liquid inlet.

[0012] The heat exchange tube includes a flat tube body and a heat exchange channel formed by the flat tube body; wherein, the outer peripheral wall of the flat tube body is provided with a number of integrally inwardly recessed disturbance parts.

[0013] In some embodiments, the heat exchange channel is provided with reinforcing ribs, which divide the heat exchange channel into several smaller channels.

[0014] In some embodiments, the reinforcing rib is formed by bending the flat tube body.

[0015] In some embodiments, the water chamber body includes a box and a cover that fit together; wherein,

[0016] The liquid inlet and liquid outlet are located on the tank body;

[0017] The cover is provided with a mounting groove for connecting heat exchange tubes.

[0018] In some embodiments, the partition is disposed on the cover, having a first protrusion at its top, and the cover is provided with a first mounting groove into which the first protrusion engages.

[0019] In some embodiments, the stop block is U-shaped in shape, and each of the two side plates of the U-shaped structure is provided with a second protrusion, and the cover is provided with a second mounting groove for the second protrusion to be engaged.

[0020] In some embodiments, the bottom plate of the stop block is located at the middle position in the height direction of the water inlet chamber.

[0021] In some embodiments, the flat tube body has blank sections near both ends for assembly with mounting slots, and the disturbance part is disposed in the area between the two blank sections.

[0022] In some embodiments, the disturbance parts are arranged in pairs, with the two disturbance parts in each pair distributed in a figure-eight shape.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] (1) The water chamber structure for an automotive heat exchanger of this utility model can effectively avoid the direct impact of coolant on the heat exchange tube by providing a stop block at the liquid inlet, which is beneficial to extending its service life. At the same time, due to the stopping effect of the stop block, the coolant will enter the heat exchange tube more dispersedly, which can reduce the flow rate of coolant in the heat exchange tube and improve the heat exchange effect.

[0026] (2) The water chamber structure for an automotive heat exchanger of the present invention provides a disturbance part on the peripheral wall of the flat tube body. On the one hand, it can have a certain disturbance effect on the flow of coolant in the heat exchange channel, so as to improve the uniformity of coolant temperature; on the other hand, it can also extend the flow path of coolant, which is conducive to improving the heat exchange effect; on the other hand, it increases the contact area between coolant and the inner wall of the flat tube body, which is also conducive to improving the heat exchange effect.

[0027] (3) In the water chamber structure of the present invention for automotive heat exchangers, the reinforcing ribs are formed by bending the flat tube body without the need for additional welding operations; at this time, the flat tube body can adopt a thinner design to further improve the heat transfer efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the water chamber structure for an automotive heat exchanger according to the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the water chamber body of this utility model;

[0030] Figure 3 This is a schematic diagram of the heat exchange tube in this utility model;

[0031] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0032] In the diagram: 100, the main body of the water chamber;

[0033] 110. Box body; 111. Liquid inlet; 112. Liquid outlet; 113. First assembly tank; 114. Second assembly tank;

[0034] 120. Cover; 121. Mounting slot;

[0035] 130. Partition; 131. First protrusion;

[0036] 140. Stop block; 141. Second protrusion;

[0037] 200. Heat exchanger tubes;

[0038] 210. Flat tube body; 220. Heat exchange channel; 230. Disturbance section; 240. Reinforcing rib. Detailed Implementation

[0039] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] The present invention will be further described below with reference to specific embodiments.

[0042] like Figure 1 , Figure 2 As shown, a water chamber structure for an automotive heat exchanger according to this embodiment includes a water chamber body 100 and a plurality of heat exchange tubes 200 connected to the inner cavity of the water chamber body 100.

[0043] The water chamber body 100 is equipped with a partition 130, which divides the water chamber body 100 into an inlet chamber and an outlet chamber. The inlet chamber is provided with an inlet 111, and the outlet chamber is provided with an outlet 112. At the same time, a stop block 140 is provided in the inlet chamber, and the stop block 140 is located on the outlet path of the inlet 111.

[0044] In other words, when the coolant enters the water inlet chamber from the inlet 111, it is first stopped by the stop block 140 and then enters the heat exchange tube 200. Therefore, it does not directly impact the heat exchange tube 200, thus greatly reducing impact loss and extending its service life. In addition, due to the stopping effect of the stop block 140, the coolant can enter the heat exchange tube 200 more dispersedly, reducing the coolant flow rate in the heat exchange tube 200 and improving the heat exchange effect.

[0045] In some embodiments, the water chamber body 100 includes a box body 110 and a cover body 120 that overlap each other. The cover body 120 has flanges around its perimeter and is connected to the box body 110 by riveting and pressing after assembly. The liquid inlet 111 and the liquid outlet 112 are both located on the box body 110, while the cover body 120 has several mounting grooves 121 for connecting heat exchange tubes 200. During assembly, the ends of the heat exchange tubes 200 are inserted into the mounting grooves 121 and then welded.

[0046] In some embodiments, a partition 130 is disposed on a cover 120, and the top of the cover has a first protrusion 131. Simultaneously, a first mounting groove 113 is formed at a corresponding position on the cover 120. The first protrusion 131 engages with the first mounting groove 113, and then is welded.

[0047] Preferably, the partition 130 is located in the middle of the cover 120. This makes the volumes of the inlet and outlet chambers approximately equal, which is beneficial for the circulation of coolant.

[0048] In some embodiments, the stop block 140 has an overall U-shaped structure, including a base plate and side plates located on both sides of the base plate. The base plate mainly serves to stop and buffer the coolant, preventing the coolant from directly impacting the welded joints of the heat exchange tube 200; the side plates are mainly used for installing and fixing the stop block 140.

[0049] Specifically, each of the two side plates has a second protrusion 141 at its top; and the cover 120 has a second assembly groove 114 on each side of the liquid inlet 111. During assembly, the second protrusion 141 is first inserted into the corresponding second assembly groove 114, and then welded.

[0050] Preferably, the bottom plate of the stop block 140 is located at the middle position in the height direction of the water inlet chamber. That is, the upper and lower spaces divided by the bottom plate in the water inlet chamber are approximately the same in height. The advantage of this design is that, on the one hand, it can effectively avoid the situation where the coolant flow rate is obstructed or even blocked due to the bottom plate being too close to the liquid inlet 111. On the other hand, it can prevent the bottom plate from being too close to the flat tube body 210, which would result in less coolant entering the flat tube body 210 below the bottom plate, thereby affecting the uniformity of coolant distribution.

[0051] like Figure 3 As shown, in one embodiment of the heat exchange tube 200, the heat exchange tube 200 includes a flat tube body 210 and a heat exchange channel 220 formed by the flat tube body 210. The flat tube body 210 has blank sections near both ends for assembly with the mounting groove 121. In the region between the two blank sections, a minor disturbance portion 230 is provided on the peripheral wall of the flat tube body 210, and this disturbance portion 230 is recessed inwards.

[0052] In other words, when viewed from the outside, the disturbance part 230 appears as a depression; but when viewed from the inside, it appears as a protrusion.

[0053] In this embodiment, a water chamber structure for an automotive heat exchanger features a disturbance portion 230 that protrudes entirely from the inner circumferential wall of the flat tube body 210. On one hand, this disturbance portion 230 turbulently turbulently flows the coolant within the heat exchange channel 220, improving the uniformity of coolant temperature. Simultaneously, it extends the coolant's flow path, increasing the contact area between the coolant and the flat tube body 210, thereby enhancing the heat exchange effect. On the other hand, the presence of the disturbance portion 230 also strengthens the structure of the flat tube body 210.

[0054] In addition, since the disturbance part 230 is recessed into the outer peripheral wall of the flat tube body 210, it is also beneficial to increase the contact area between the external air and the flat tube body 210, which is also beneficial to improving the heat exchange effect.

[0055] In some embodiments, the disturbance parts 230 are arranged in pairs, with the two disturbance parts 230 in each pair distributed in a figure-eight shape, in order to further enhance the disturbance effect on the coolant.

[0056] refer to Figure 4 As shown, in some embodiments, in order to further enhance the structural strength of the heat exchange tube 200, a reinforcing rib 240 is provided in the heat exchange channel 220, which divides the heat exchange channel 220 into two parts.

[0057] Preferably, the reinforcing rib 240 is formed by bending the flat tube body 210. This design eliminates the need for additional welding operations, simplifying the installation steps of the reinforcing rib 240; moreover, the flat tube body 210 can be designed to be thinner, further improving heat transfer efficiency.

[0058] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A water chamber structure for an automotive heat exchanger, comprising a water chamber body (100) and a plurality of heat exchange tubes (200) communicating with the inner cavity of the water chamber body (100); characterized in that: The water chamber body (100) is provided with a partition (130), which divides the water chamber body (100) into an inlet chamber and an outlet chamber; the inlet and outlet chambers are respectively connected to an inlet (111) and an outlet (112); The water inlet chamber is provided with a stop block (140), which is located on the water outlet path of the liquid inlet (111); The heat exchange tube (200) includes a flat tube body (210) and a heat exchange channel (220) formed by the flat tube body (210); wherein, the outer peripheral wall of the flat tube body (210) is provided with a plurality of integrally inwardly recessed disturbance parts (230).

2. The water chamber structure for an automotive heat exchanger according to claim 1, characterized in that: The heat exchange channel (220) is provided with reinforcing ribs (240), which divide the heat exchange channel (220) into several small channels.

3. The water chamber structure for an automotive heat exchanger according to claim 2, characterized in that: The reinforcing rib (240) is formed by bending the flat tube body (210).

4. A water chamber structure for an automotive heat exchanger according to any one of claims 1-3, characterized in that: The water chamber body (100) includes a box (110) and a cover (120) that overlap each other; wherein, The liquid inlet (111) and liquid outlet (112) are provided on the housing (110); The cover (120) is provided with a mounting groove (121) for connecting the heat exchange tube (200).

5. A water chamber structure for an automotive heat exchanger according to claim 4, characterized in that: The partition (130) is disposed on the cover (120), and has a first protrusion (131) on its top. The cover (120) is provided with a first mounting groove (113) for the first protrusion (131) to be inserted.

6. The water chamber structure for an automotive heat exchanger according to claim 4, characterized in that: The stop block (140) is U-shaped in shape, and each of the two side plates of the U-shaped structure is provided with a second protrusion (141). The cover (120) is provided with a second mounting groove (114) for the second protrusion (141) to be inserted.

7. A water chamber structure for an automotive heat exchanger according to claim 6, characterized in that: The bottom plate of the stop block (140) is located at the middle position in the height direction of the water inlet chamber.

8. A water chamber structure for an automotive heat exchanger according to claim 1, characterized in that: The flat tube body (210) has blank sections near both ends for assembly with the mounting groove (121), and the disturbance part (230) is located in the area between the two blank sections.

9. A water chamber structure for an automotive heat exchanger according to claim 8, characterized in that: The disturbance parts (230) are arranged in pairs, and the two disturbance parts (230) in each pair are distributed in a figure-eight shape.

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