A double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle

Abstract

The present invention relates to the technical field of automobile heat pump air-conditioning systems, and in particular to a double-layer parallel-flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle, comprising a flow guiding mechanism, comprising a first collecting pipe, a second collecting pipe, a third collecting pipe, a fourth collecting pipe and a double-plate partition; and an exchange mechanism, comprising an exchange component and a guard plate, the two guard plates being symmetrically arranged in a vertical direction, the exchange component comprising a plurality of flat tubes and corrugated fins arranged in an array along the vertical direction, and the plurality of flat tubes and the plurality of corrugated fins being alternately arranged, assuming that the spacing between the two vertically upper partition grooves is h1, and the spacing between the two vertically lower partition grooves is h2, then h1:h2=1:2 in the first collecting pipe and the fourth collecting pipe, and h1:h2=2:1 in the second collecting pipe and the third collecting pipe. The air-conditioning heat exchanger simplifies the product structure and reduces the cost through a six-process design. On the premise of achieving dual cooling and heating, it can effectively save installation space and has good thermal stability.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile heat pump air-conditioning systems, and in particular to a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle. Background Art

[0002] Unlike fuel-powered vehicles, new energy vehicles don't utilize engine waste heat, so the industry has reached a consensus on using heat pump systems for winter heating and defrosting. Heat pump systems can improve the range of electric vehicles in winter, especially for hybrid vehicles equipped with heat pump systems. The air conditioning box has at least three layers of cores (evaporator, indoor condenser, and PTC), and sometimes even four layers of cores (evaporator, indoor condenser, heater core, and PTC). This results in a severe lack of internal space in the air conditioning box, making layout difficult. Furthermore, the limited space inside the air conditioning box also results in a small heat exchange area and insufficient heat exchange capacity. Therefore, using an indoor dual-purpose heat exchanger to simultaneously replace the functions and positions of the original evaporator and indoor condenser heat exchangers is a common solution for existing electric vehicle air conditioning systems.

[0003] However, the heat exchange performance of existing single-purpose evaporators and single-purpose condensers cannot be significantly improved, and the space inside the air-conditioning box is seriously insufficient, making it impossible to arrange multiple cores. If an evaporator is directly used to replace the dual-purpose heat exchanger, the evaporator uses a thinner and larger cavity manifold, which has insufficient pressure resistance and cannot meet the high-pressure operating conditions of the condenser. If a condenser is directly used to replace the dual-purpose evaporator, under the condition of limited space inside the air-conditioning box, the cooling performance, temperature uniformity and drainage performance cannot be met due to the insufficient core thickness, high fin density and lack of diversion design.

[0004] In addition, the existing public document CN117190546A - A novel double-layer to four-flow indoor condenser structure, discloses a novel vehicle-mounted dual-purpose heat exchanger. Although this heat exchanger can achieve effective cooling and heating and has good temperature regulation uniformity, the heat exchange medium can only circulate in the heat exchanger according to a fixed process route and flow rate. This results in a fixed heat exchange surface area. To change the heat exchange effect, the power of the compressor must be changed, which indirectly increases energy consumption and also shortens the service life of the compressor. The overall practicality is poor.

[0005] Therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the Invention

[0006] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0007] In view of the problems that the above-mentioned existing heat exchangers used in automobile heat pump air-conditioning systems have in use, such as large space occupation, unstable heat exchange, insufficient cooling performance, temperature uniformity and drainage performance, a double-layer parallel flow air-conditioning heat exchanger for automobile interior cooling and heating is proposed.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle, comprising: a flow guiding mechanism, including a first collecting pipe, a second collecting pipe, a third collecting pipe, a fourth collecting pipe and a double-plate partition, the first collecting pipe and the fourth collecting pipe are symmetrically arranged in the back and front, and the second collecting pipe and the third collecting pipe are symmetrically arranged in the back and front; and an exchange mechanism, including an exchange component and a guard plate, the two guard plates are symmetrically arranged in the vertical direction, and the positions between the two guard plates are aligned in the front-to-back direction. Two exchange components are arranged, one of which is located between the first collecting pipe and the second collecting pipe, and the other is located between the third collecting pipe and the fourth collecting pipe. The exchange component includes a plurality of flat tubes and corrugated fins arranged in an array in the vertical direction, and the plurality of flat tubes and the plurality of corrugated fins are arranged alternately. The first collecting tube, the second collecting tube, the third collecting tube and the fourth collecting tube are all provided with three partition grooves in the vertical direction on one side away from the exchange component. Assuming that the spacing between the two partition grooves above is h1, and the spacing between the two partition grooves below is h2, then h1:h2=1:2 in the first collecting tube and the fourth collecting tube, and h1:h2=2:1 in the second collecting tube and the third collecting tube. The same double-piece partition plate is inserted into the two partition grooves located on the same plane in the first collecting tube and the fourth collecting tube, and the same double-piece partition plate is inserted into the two partition grooves located on the same plane in the second collecting tube and the third collecting tube; connecting holes are arranged in an array in the vertical direction on one side of the second collecting tube located between the two double-piece partition plates below, and a connecting sleeve for inserting into the connecting hole is fixed on an outer side surface of the third collecting tube.

[0009] The beneficial effects of the present invention are as follows: when the air-conditioning heat exchanger is in use and serves as an evaporator (heat absorption), the heat exchange medium enters from the top of the first header, and when flowing into the upper end of the first header, enters the second header through the flat tube. Through the guidance of the second header, the heat exchange medium flows into the middle and lower end of the second header and then enters the middle and lower end of the first header through the flat tube. Through the guidance of the first header, the heat exchange medium enters the second header through the flat tube at the lower end of the first header. Through the cooperation of the communicating hole and the communicating sleeve, the heat exchange medium flows into the lower end of the third header through the flat tube. The heat exchanger enters the lower end of the fourth header from the lower end of the third header through the flat tubes. As the fourth header is guided upward and transported by the flat tubes, the heat exchanger enters the lower middle part of the third header again. As the third header guides the heat exchanger to the upper end of the third header, it flows through the flat tubes into the upper end of the fourth header and is finally discharged from the transport pipe at the top of the fourth header. When the heat exchanger circulates in the flat tubes, it is combined with corrugated fins to achieve heat absorption and cooling. When acting as a condenser (releasing heat), the heat exchanger enters from the transport pipe at the upper end of the fourth header and flows in the reverse direction according to the above steps.

[0010] Through the above settings, the heat exchanger can circulate in six processes. The six-process structure can greatly improve the temperature uniformity while meeting the cooling and heating performance, replacing traditional diverter plates, diverter partitions and other structures, simplifying the product structure and reducing costs. Under the premise of achieving dual cooling and heating, it can effectively save installation space and has good thermal stability.

[0011] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle is provided, wherein: a first collecting pipe, a second collecting pipe, a third collecting pipe and a fourth collecting pipe are provided with a plurality of slots in an array in a vertical direction on one side surface close to the exchange component, and a first plug-in plate inserted into the slot is symmetrically fixed at both ends of the flat tube, and the cross-section of the corrugated fin is sinusoidal, and the corrugated fin is clamped between the two flat tubes, and the two ends of the corrugated fin are flush with the flat tube.

[0012] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle, wherein: a delivery pipe is welded and fixed on the top surface of the end cover above the first collecting pipe and the fourth collecting pipe, and the other ends of the two delivery pipes are fixedly connected to the same collecting plate; a double-piece partition at the top of the first collecting pipe is located in the area inside the first collecting pipe and the fourth collecting pipe, and material passing holes are respectively opened.

[0013] In view of the problem that the existing heat exchangers have a single adjustment method for heat exchange efficiency and poor practicality, a further preferred solution is improved for a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle according to the present invention, wherein: it also includes an adjustment mechanism respectively arranged at the upper end position inside the first manifold and the fourth manifold, the adjustment mechanism including an adjustment rod and a first gear disc; the adjustment rod slides through the uppermost double-piece partition, and the lower end of the adjustment rod is inserted into the positioning hole on the top surface of the double-piece partition located in the middle; a third gear disc engaged with the first gear disc is fixedly sleeved on the outer wall of the lower end of the adjustment rod; at the same time, a second gear disc is fixed on the top surface of the adjustment rod, a convex column is fixed in the middle of the bottom surface of the first gear disc, and a convex groove for clearance fit of the convex column is opened on the top surface of the double-piece partition; a plurality of second fan-shaped through grooves are opened in a circumferential array on the end surface of the first gear disc, and the double-piece partition outside the convex groove is opened in a circumferential array with the same number of first fan-shaped through grooves as the second fan-shaped through grooves, and the first fan-shaped through grooves are located directly below the rotation track surface of the second fan-shaped through grooves.

[0014] Another beneficial effect of the present invention is that when the air-conditioning heat exchanger is in use, the rotation of the third gear disc can be achieved by rotating the adjusting rod, and because of the meshing setting between the third gear disc and the first gear disc, the rotation of the first gear disc is finally achieved, thereby achieving the adjustment of the overlapping position between the first fan-shaped through groove and the second fan-shaped through groove. This adjustment method can enable the heat exchanger to flow directly from the first fan-shaped through groove, and the heat exchanger no longer follows the traditional six-process circulation heat exchange. Because when the heat exchanger circulates according to the traditional six-process, the temperature difference between the heat exchanger and the outside world is not large at the tail end of the circulation, which leads to a decrease in the heat exchange rate at the tail end of the six-process, which is manifested to the outside as the good heat exchange effect in the first half of the six-process and the poor heat exchange effect in the second half. The present application can achieve high heat exchange efficiency throughout the entire heat exchange process through the design of the heat exchanger flowing directly from the first fan-shaped through groove. This setting increases the richness of the heat exchange efficiency adjustment method, is more practical, and can effectively reduce the loss to the compressor.

[0015] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle, wherein: a matching hole for sliding the adjusting rod is opened on the double-piece partition plate, and a placement ring groove is opened in the middle of the inner wall of the matching hole along the circumferential direction, and a sealing ring is fitted in the gap of the placement ring groove; an outer sealing ring coaxial with the first gear disc is fixed on the bottom surface of the first gear disc outside the second fan-shaped through groove, and a sealing ring groove for gap fitting of the outer sealing ring is opened on the top surface of the double-piece partition plate.

[0016] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle, wherein: a first rectangular blind groove is provided on the top surface of the adjusting rod, a first rectangular plug-in block that is gap-matched with the first rectangular blind groove is fixed on the bottom surface of the second gear disc, and the first rectangular plug-in block and the adjusting rod are fixed by bolts; a second rectangular blind groove is provided on the top surface of the convex column, a second rectangular plug-in block that is gap-matched with the second rectangular blind groove is fixed in the middle of the bottom surface of the first gear disc, and the second rectangular plug-in block and the convex column are fixed by bolts.

[0017] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle, it further includes a driving mechanism arranged above the exchange mechanism, the driving mechanism including a rack rod, a linkage rod and a mounting block, the two rack rods are arranged in a one-to-one correspondence with the two second gear plates, a connecting rod is fixedly provided at one end of the rack rod, and the other end of the connecting rod passes through the first collecting pipe or the fourth collecting pipe and is fixedly connected to the linkage rod; an adsorption plate is fixedly provided on the top surface of the other side of the linkage rod relative to the connecting rod, and a mounting block is fixedly provided on the top surface of the guard plate between the two adsorption plates, and an electromagnetic plate is fixedly provided on the side surface of the mounting block close to the adsorption plate.

[0018] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle, wherein: T-shaped columns are symmetrically fixed on the mounting blocks on both sides of the electromagnetic plate, and the free ends of the T-shaped columns are slidably sleeved on the adsorption plate, and a spring is slidably sleeved on the T-shaped column between the adsorption plate and the mounting block.

[0019] As a preferred solution of the present invention, a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating of a vehicle, wherein: the first collecting pipe and the fourth collecting pipe are both provided with convex holes for sliding sleeve connection of the connecting rod, and a rubber ring is provided at one end of the large diameter ruler of the convex hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0021] Figure 1 The figure is a schematic diagram of the overall structure of a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle.

[0022] Figure 2 For the present invention Figure 1 Left rear view of the structure.

[0023] Figure 3 For the present invention Figure 1 Exploded view of the structure.

[0024] Figure 4 For the present invention Figure 3 Left rear view of the structure.

[0025] Figure 5 It is a schematic diagram of the coordination between the adjustment mechanism and the double-piece partition in the present invention.

[0026] Figure 6 For the present invention Figure 5 Exploded view of the structure.

[0027] Figure 7 For the present invention Figure 6 Bottom diagram of the structure.

[0028] Figure 8 Schematic diagram of the internal structure of the fourth collecting pipe in the present invention.

[0029] Figure 9 It is a schematic diagram of the overall structure of the driving mechanism in the present invention.

[0030] Figure 10 This is a flow diagram of the heat exchanger in the structure of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0034] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included. Example 1

[0035] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , which is the first embodiment of the present invention, provides a double-layer parallel flow air-conditioning heat exchanger for indoor cooling and heating in a vehicle. The air-conditioning heat exchanger is used in conjunction with a heat pump system. The guide mechanism 100 is used to guide the six-flow process of the heat exchanger, and the exchange mechanism 200 is used for heat exchange.

[0036] Specifically, it includes a flow guiding mechanism 100, including a first collecting pipe 101, a second collecting pipe 102, a third collecting pipe 103, a fourth collecting pipe 104 and a double-plate partition 105. The first collecting pipe 101 and the fourth collecting pipe 104 are symmetrically arranged in the back and front, and the second collecting pipe 102 and the third collecting pipe 103 are symmetrically arranged in the back and front; and an exchange mechanism 200, including an exchange component and a guard plate 202. The guard plate 202 can play a certain protective role. The two guard plates 202 are symmetrically arranged in the vertical direction, and two exchange components are aligned between the two guard plates 202 along the front-to-back direction. One of the exchange components is located between the first collecting pipe 101 and the second collecting pipe 102, and the other exchange component is located between the third collecting pipe 103 and the fourth collecting pipe 104.

[0037] See Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown, the exchange component includes a plurality of flat tubes 201 and corrugated fins arranged in an array along the vertical direction. The corrugated fins are used to assist in heat exchange, and the plurality of flat tubes 201 and the plurality of corrugated fins are arranged alternately; the first header 101, the second header 102, the third header 103 and the fourth header 104 are each provided with three partition grooves 107 in the vertical direction on the side away from the exchange component. Assuming that the spacing between the two partition grooves 107 above is h1 and the spacing between the two partition grooves 107 below is h2, then the ratio of h1:h2 in the first header 101 and the fourth header 104 is 1:2, and the ratio of h1:h2 in the second header 102 and the third header 103 is 2:1. This arrangement is in conjunction with The arrangement of the double-piece partition 105 can realize that the heat exchange medium flows according to six processes when circulating in the guide mechanism 100 and the exchange mechanism 200. The same double-piece partition 105 is inserted into the two partition grooves 107 located on the same plane in the first header 101 and the fourth header 104, and the same double-piece partition 105 is inserted into the two partition grooves 107 located on the same plane in the second header 102 and the third header 103. The arrangement of the double-piece partition 105 can achieve a partitioning effect in the first header 101, the second header 102, the third header 103 and the fourth header 104. In actual use, the double-piece partition 105 can be fixed by adhesive or welding;

[0038] A plurality of slots 108 are arranged in a vertical array on one side of the first header 101, the second header 102, the third header 103 and the fourth header 104 close to the exchange component. The two ends of the flat tube 201 are symmetrically fixed with first plug-in plates 201a inserted in the slots 108. This arrangement can realize the horizontal circulation of the heat exchange medium. The cross section of the corrugated fin is sinusoidal. The corrugated fin is sandwiched between the two flat tubes 201. The two ends of the corrugated fin are parallel to the flat tube 201. The second manifold 102 is provided with a vertical array of communication holes 102a on one side surface between the two double-piece partitions 105 below, and a communication sleeve 103a is fixedly provided on one outer side surface of the third manifold 103 for inserting into the communication hole 102a. This arrangement enables the heat exchange medium to flow between the second manifold 102 and the third manifold 103. In actual use, the mating position between the communication hole 102a and the communication sleeve 103a should be sealed.

[0039] When the above arrangement is used as an evaporator, Figure 10 As shown, the heat exchanger enters from the top of the first header 101, and enters the second header 102 through the flat tube 201 when flowing into the upper end of the first header 101. Through the guidance of the second header 102, the heat exchanger flows into the middle and lower end of the second header 102 and then enters the middle and lower end of the first header 101 through the flat tube 201. Through the guidance of the first header 101, the heat exchanger enters the second header 102 through the flat tube 201 at the lower end of the first header 101. Through the cooperation of the communicating hole 102a and the communicating sleeve 103a, the heat exchanger flows into the lower end of the third header 103 and passes through the flat tube 201. 01, the heat exchanger enters the lower end of the fourth header 104 from the lower end of the third header 103. With the upward guidance of the fourth header 104 and the transportation of the flat tube 201, the heat exchanger once again enters the middle and lower part of the third header 103. With the guidance of the third header 103, the heat exchanger is transported to the upper end of the third header 103, and finally flows into the upper end of the fourth header 104 through the flat tube 201 and is finally discharged from the delivery pipe 106a at the top of the fourth header 104. When used as a condenser (releasing heat), the heat exchanger enters from the delivery pipe 106a at the upper end of the fourth header 104 and flows in the reverse direction according to the above steps.

[0040] Furthermore, a delivery pipe 106a is welded to the top surface of the end cover above the first manifold 101 and the fourth manifold 104, and the other ends of the two delivery pipes 106a are fixedly connected to the same concentrator plate 106. The setting of the concentrator plate 106 can be connected to the heat pump system. A double-piece partition plate 105 at the top of the first manifold 101 is located inside the first manifold 101 and the fourth manifold 104, and a material through hole 105a is respectively opened. The material through hole 105a is set for the entry and exit of the heat exchange medium;

[0041] In addition, during use, according to actual conditions, two of the devices can be arranged in the heat pump system, with the larger device serving as the main heat exchanger and the smaller device serving as the backup heat exchanger. When the heat exchange capacity is insufficient, the devices can be activated to intervene, which can greatly improve the heat exchange performance of the heat pump system. Example 2

[0042] Reference Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but is different in that this embodiment is proposed in order to adjust the flow path of the heat exchanger according to needs, thereby adjusting the heat exchange mode, making the overall heat exchange more uniform and balanced, and effectively adjusting the heat exchange efficiency.

[0043] Specifically, it also includes an adjustment mechanism 400 respectively arranged at the upper end position of the first manifold 101 and the fourth manifold 104, and the adjustment mechanism 400 includes an adjustment rod 401 and a first gear disc 402; the adjustment rod 401 slides through the uppermost double-piece partition 105, and the lower end of the adjustment rod 401 is inserted into the positioning hole 105e on the top surface of the double-piece partition 105 located in the middle. This design method can play a positioning role for the lower end of the adjustment rod 401, and a third gear disc 401b engaged with the first gear disc 402 is fixedly sleeved on the outer side wall of the lower end of the adjustment rod 401, and a second gear disc 401 is fixed on the top surface of the adjustment rod 401. a. A convex column 402b is fixedly provided in the middle of the bottom surface of the first toothed disc 402, and a convex groove 105d-2 is provided on the top surface of the double-piece partition 105 for clearance fit of the convex column 402b. This arrangement enables the first toothed disc 402 to be positioned and rotated on the double-piece partition 105; a plurality of second fan-shaped through grooves 402a are provided in a circumferential array on the end surface of the first toothed disc 402. A plurality of first fan-shaped through grooves 105d are provided in a circumferential array on the double-piece partition 105 outside the convex groove 105d-2, equal in number to the second fan-shaped through grooves 402a. The first fan-shaped through grooves 105d are located directly below the rotational track surface of the second fan-shaped through grooves 402a.

[0044] The double-piece partition 105 is provided with a matching hole 105b for the adjusting rod 401 to slide through. A placement ring groove 105b-1 is provided in the middle of the inner wall of the matching hole 105b along the circumferential direction. A sealing ring 105c is fitted in the gap of the placement ring groove 105b-1. When in use, this arrangement can realize the free rotation of the adjusting rod 401 in the matching hole 105b and can also realize the sealing between the adjusting rod 401 and the matching hole 105b. A fixing member is fixed on the bottom surface of the first toothed disc 402 outside the second fan-shaped through groove 402a. An outer sealing ring 402c is coaxial with the first toothed disc 402, and a sealing ring groove 105d-1 is provided on the top surface of the double-piece partition plate 105 for clearance fit of the outer sealing ring 402c. This arrangement can achieve tight sealing between the first toothed disc 402 and the double-piece partition plate 105, thereby ensuring that the heat exchange medium always flows through the first fan-shaped through groove 105d and the second fan-shaped through groove 402a. In actual use, the sealing ring groove 105d-1 at the lower end of the outer sealing ring 402c can be filled with sealing oil to improve the sealing effect.

[0045] When the above arrangement is in use, the rotation of the third toothed disc 401b can be achieved by rotating the adjusting rod 401, and because of the meshing arrangement between the third toothed disc 401b and the first toothed disc 402, the adjusting rod 401 can finally drive the first toothed disc 402 to rotate with the convex column 402b as the axis, thereby achieving the adjustment of the overlapping area between the second fan-shaped through groove 402a and the first fan-shaped through groove 105d. This adjustment method can achieve the direct passage of the heat exchanger through the first fan-shaped through groove 105d and the adjustment of the change in the flow rate of the heat exchanger. Such an adjustment method can improve the uniformity of heat exchange; in addition, in actual use, the adjustment mechanism 400 in the first manifold 101 and the fourth manifold 104 should be adjusted separately, so as to achieve effective adjustment of the heat exchange uniformity in both cooling and heating.

[0046] Furthermore, a first rectangular blind groove 401c is provided on the top surface of the adjusting rod 401, and a first rectangular plug 401a-1 that is clearance-matched with the first rectangular blind groove 401c is fixed on the bottom surface of the second toothed disc 401a, and the first rectangular plug 401a-1 and the adjusting rod 401 are fixed by bolts, so that a detachable connection between the adjusting rod 401 and the second toothed disc 401a can be achieved; a second rectangular blind groove 402b-1 is provided on the top surface of the convex column 402b, and a second rectangular plug 402d that is clearance-matched with the second rectangular blind groove 402b-1 is fixed in the middle of the bottom surface of the first toothed disc 402, and the second rectangular plug 402d and the convex column 402b are fixed by bolts, so that a detachable connection between the first toothed disc 402 and the convex column 402b can be achieved.

[0047] In addition, it should be noted that the heat exchanger in this device is a medium used to carry heat in a common heat pump system, in the form of gas or liquid. It is mainly used to achieve internal and external heat exchange. Due to existing technology, it will not be described here. Example 3

[0048] Reference Figure 1 、 Figure 6 and Figure 9 , which is the third embodiment of the present invention, is based on any of the above embodiments, except that, in order to facilitate the implementation of the present invention, the structure for driving the adjustment mechanism to perform the action is detailed.

[0049] Specifically, it also includes a driving mechanism 300 arranged above the exchange mechanism 200, and the driving mechanism 300 includes a rack rod 301, a linkage rod 302 and a mounting block 303. The two rack rods 301 are meshed with the two second gear discs 401a in a one-to-one correspondence. The lateral movement of the rack rod 301 can realize the rotation of the gear disc 401b, and then the adjustment rod 401 drives the rotation of the adjustment disc 402; one end of the rack rod 301 is fixed with a connecting rod 301a, and the other end of the connecting rod 301a passes through the first manifold 10 1 or the fourth manifold 104 is fixedly connected to the linkage rod 302; an adsorption plate 302a is fixedly provided on the top surface of the other side of the linkage rod 302 relative to the connection rod 301a, and a mounting block 303 is fixedly provided on the top surface of the guard plate 202 between the two adsorption plates 302a, and an electromagnetic plate 303a is fixedly provided on the side of the mounting block 303 close to the adsorption plate 302a. This arrangement can realize that the connection rods 301a in the first manifold 101 and the fourth manifold 104 can be operated independently to meet the different needs of cooling and heating;

[0050] T-shaped columns 303b are symmetrically fixed to the mounting blocks 303 on both sides of the electromagnetic plate 303a, and the free ends of the T-shaped columns 303b are slidably sleeved on the adsorption plate 302a. A spring 303b-1 is slidably sleeved on the T-shaped column 303b between the adsorption plate 302a and the mounting blocks 303. The provision of the spring 303b-1 can achieve a reset effect on the adsorption plate 302a, and the provision of the T-shaped column 303b can serve as a limit guide for the movement of the adsorption plate 302a.

[0051] When the above arrangement is in use, the electromagnetic plate 303a is arranged in conjunction with the spring 303b-1, and the adsorption plate 302a can be moved back and forth along the axis of the T-shaped column 303b by turning the power on and off of the electromagnetic plate 303a. In this way, the connecting rod 301a can drive the linkage rod 302 to move back and forth horizontally, thereby realizing the forward and reverse rotation of the second gear plate 401a.

[0052] In addition, it should be noted that the device is also provided with a controller (not shown in the drawings) for controlling the various electrical components in the device. The controller is arranged in a position convenient for staff to operate, such as in a vehicle-mounted central control system.

[0053] Furthermore, the first manifold 101 and the fourth manifold 104 are both provided with convex holes for slidingly sleeved connection of the connecting rod 301a, and a rubber ring is provided at one end of the large diameter ruler of the convex hole, and the provision of the rubber ring can achieve sealing of the fit.

[0054] In addition, it should be noted that the components not described in detail herein are prior art.

[0055] It is important to note that the configuration and arrangement of the present application as shown in various exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure should readily understand that many modifications are possible (e.g., variations in the size, scale, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of an element may be inverted or otherwise altered, and the nature, number, or position of discrete elements may be modified or changed. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0056] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0057] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating, characterized by: include, A flow guiding mechanism (100) comprises a first flow collecting pipe (101), a second flow collecting pipe (102), a third flow collecting pipe (103), a fourth flow collecting pipe (104) and a double-plate partition (105), wherein the first flow collecting pipe (101) and the fourth flow collecting pipe (104) are arranged symmetrically in the back and front, and the second flow collecting pipe (102) and the third flow collecting pipe (103) are arranged symmetrically in the back and front; and An exchange mechanism (200) comprises an exchange assembly and a guard plate (202), wherein the two guard plates (202) are symmetrically arranged in a vertical direction, and two exchange assemblies are arranged between the two guard plates (202) in an aligned position along a front-to-rear direction, wherein one exchange assembly is located between a first header (101) and a second header (102), and the other exchange assembly is located between a third header (103) and a fourth header (104), and the exchange assembly comprises a plurality of flat tubes (201) and corrugated fins arranged in an array along a vertical direction, and the plurality of flat tubes (201) and the plurality of corrugated fins are arranged alternately; The first collecting pipe (101), the second collecting pipe (102), the third collecting pipe (103) and the fourth collecting pipe (104) are provided with three partition grooves (107) in the vertical direction on the side away from the exchange component. Assuming that the distance between the two partition grooves (107) above is h1 and the distance between the two partition grooves (107) below is h2, then h1:h2 in the first collecting pipe (101) and the fourth collecting pipe (104) = 1:2, h1:h2=2:1 in the second header (102) and the third header (103), the same double-piece partition plate (105) is inserted into the two partition grooves (107) located on the same plane in the first header (101) and the fourth header (104), and the same double-piece partition plate (105) is inserted into the two partition grooves (107) located on the same plane in the second header (102) and the third header (103); The second manifold (102) is provided with communication holes (102a) arranged in an array along the vertical direction on one side surface between the two double-piece partitions (105) below, and a communication sleeve (103a) for inserting into the communication holes (102a) is fixedly provided on an outer side surface of the third manifold (103); It also includes an adjustment mechanism (400) respectively arranged at the upper end position inside the first manifold (101) and the fourth manifold (104), the adjustment mechanism (400) including an adjustment rod (401) and a first gear disc (402); The adjusting rod (401) slides through the uppermost double-piece partition (105), and the lower end of the adjusting rod (401) is engaged with the positioning hole (105e) on the top surface of the double-piece partition (105) located in the middle. A third toothed disc (401b) meshing with the first toothed disc (402) is fixedly sleeved on the outer side wall of the lower end of the adjusting rod (401). At the same time, a second toothed disc (401a) is fixedly provided on the top surface of the adjusting rod (401). A convex column (402b) is fixedly provided on the middle part of the bottom surface of the first toothed disc (402), and a convex groove (105d-2) for clearance fit of the convex column (402b) is provided on the top surface of the double-piece partition (105). A plurality of second fan-shaped through grooves (402a) are provided on the end surface of the first toothed disc (402) in a circumferential array, and a number of first fan-shaped through grooves (105d) equal to the number of the second fan-shaped through grooves (402a) are provided on the double-piece partition plate (105) outside the convex groove (105d-2) in a circumferential array, and the first fan-shaped through grooves (105d) are located directly below the rotation track surface of the second fan-shaped through grooves (402a).

2. A dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 1, characterized in that: A plurality of slots (108) are arranged in a vertical array on one side of the first collecting tube (101), the second collecting tube (102), the third collecting tube (103) and the fourth collecting tube (104) close to the exchange component. First plug-in plates (201a) inserted into the slots (108) are symmetrically fixed at both ends of the flat tube (201). The cross section of the corrugated fin is sinusoidal. The corrugated fin is sandwiched between the two flat tubes (201), and both ends of the corrugated fin are flush with the flat tube (201).

3. The dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 2, characterized in that: Delivery pipes (106a) are welded and fixedly provided on the top surfaces of the end covers above the first collecting pipe (101) and the fourth collecting pipe (104), and the other ends of the two delivery pipes (106a) are fixedly connected to the same collecting plate (106); A double-piece partition (105) at the top of the first manifold (101) is provided with material passage holes (105a) in areas located inside the first manifold (101) and the fourth manifold (104).

4. A dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 1, 2 or 3, characterized in that: The double-piece partition (105) is provided with a matching hole (105b) for the adjusting rod (401) to slide through, a placement ring groove (105b-1) is circumferentially provided in the middle of the inner wall of the matching hole (105b), and a sealing ring (105c) is provided in the gap of the placement ring groove (105b-1); An outer sealing ring (402c) coaxial with the first toothed disc (402) is fixedly provided on the bottom surface of the first toothed disc (402) outside the second fan-shaped through groove (402a), and a sealing ring groove (105d-1) for clearance fit of the outer sealing ring (402c) is provided on the top surface of the double-piece partition plate (105).

5. The dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 4, characterized in that: A first rectangular blind groove (401c) is provided on the top surface of the adjusting rod (401), a first rectangular plug (401a-1) is fixed on the bottom surface of the second toothed disc (401a) and is clearance-matched with the first rectangular blind groove (401c), and the first rectangular plug (401a-1) and the adjusting rod (401) are fixed by bolts; A second rectangular blind groove (402b-1) is provided on the top surface of the convex column (402b), a second rectangular plug-in block (402d) gap-matched with the second rectangular blind groove (402b-1) is fixedly provided in the middle of the bottom surface of the first toothed disc (402), and the second rectangular plug-in block (402d) and the convex column (402b) are fixed by bolts.

6. A dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 5, characterized in that: The device further comprises a driving mechanism (300) arranged above the exchange mechanism (200), the driving mechanism (300) comprising a rack rod (301), a linkage rod (302) and a mounting block (303), the two rack rods (301) being meshed with the two second toothed discs (401a) in a one-to-one correspondence, a connecting rod (301a) being fixedly provided at one end of the rack rod (301), and the other end of the connecting rod (301a) passing through the first manifold (101) or the fourth manifold (104) and being fixedly connected to the linkage rod (302); An adsorption plate (302a) is fixedly provided on the top surface of the other side of the linkage rod (302) provided with the connecting rod (301a), and a mounting block (303) is fixedly provided on the top surface of the guard plate (202) between the two adsorption plates (302a), and an electromagnetic plate (303a) is fixedly provided on the side surface of the mounting block (303) close to the adsorption plate (302a).

7. A dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 6, characterized in that: T-shaped columns (303b) are symmetrically fixed on the mounting blocks (303) on both sides of the electromagnetic plate (303a), and the free ends of the T-shaped columns (303b) are slidably sleeved on the adsorption plate (302a), and a spring (303b-1) is slidably sleeved on the T-shaped column (303b) between the adsorption plate (302a) and the mounting block (303).

8. The dual-purpose double-layer parallel flow air-conditioning heat exchanger for vehicle interior cooling and heating according to claim 7, characterized in that: The first collecting pipe (101) and the fourth collecting pipe (104) are both provided with convex holes for sliding sleeve engagement of the connecting rod (301a), and a rubber ring is provided at one end of the large diameter ruler of the convex hole.

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