Automotive indoor cooling and heating dual-purpose double-layer parallel flow air conditioner heat exchanger

Abstract

The invention relates to the technical field of automobile heat pump air-conditioning systems, in particular to an automobile indoor cooling and heating dual-purpose double-layer parallel flow air-conditioning heat exchanger which comprises a flow guide mechanism, a heat exchange mechanism and a heat exchange mechanism. The exchange mechanism comprises an exchange assembly and protection plates, the two protection plates are symmetrically arranged in the vertical direction, the exchange assembly comprises a plurality of flat pipes and corrugated fins which are arranged in an array mode in the vertical direction, the flat pipes and the corrugated fins are alternately arranged, the distance between the two partition grooves in the vertical upper portion is h1, the distance between the two partition grooves in the vertical lower portion is h2, and h1 is larger than h2; the ratio of h1 to h2 in the first collecting pipe and the fourth collecting pipe is 1: 2, and the ratio of h1 to h2 in the second collecting pipe and the third collecting pipe is 2: 1. According to the air conditioner heat exchanger, through the design of six flows, the product structure is simplified, the cost is reduced, on the premise that the dual purposes of refrigeration and heating are achieved, the installation space can be effectively saved, and the heat stability is good.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive heat pump air conditioning systems, and particularly to a dual-purpose indoor heating and cooling double-layer parallel flow air conditioning heat exchanger for vehicles. Background Art

[0002] Different from fuel vehicles, new energy vehicles have no engine waste heat that can be utilized. Therefore, it has been a consensus in the industry to use a heat pump system for winter heating and defrosting and demisting. The heat pump system can improve the driving range of electric vehicles in winter. Especially for hybrid vehicles equipped with a heat pump system, there are at least three cores (evaporator, indoor condenser, and PTC) in the air conditioning box, and even four cores (evaporator, indoor condenser, heater core, and PTC), resulting in a serious shortage of internal space in the air conditioning box, making it difficult to arrange. At the same time, there is also a problem that under the condition of limited space in the air conditioning box, the heat exchange area is too small and the heat exchange capacity is insufficient. Therefore, using a single indoor dual-purpose heat exchanger to replace the functions and positions of the original evaporator and indoor condenser is a common solution for existing electric vehicle air conditioning systems. However, the heat exchange performance of existing single evaporators and single condensers cannot be greatly improved, and the space in 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, due to the relatively thin and large-cavity collector tubes used in the evaporator, the pressure resistance ability is insufficient 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 in the air conditioning box, due to the insufficient core thickness, large fin density, and no flow splitting design, it cannot meet the refrigeration performance, temperature uniformity, and drainage performance. In addition, the existing published document CN117190546A - A new type of double-layer variable four-flow indoor condenser structure discloses a new type of vehicle-mounted dual-purpose heat exchanger. Although this heat exchanger can achieve effective cooling and heating dual purposes and has good temperature regulation uniformity, when the heat exchange medium flows through this heat exchanger, it can only flow according to a fixed flow path and flow rate, which results in a fixed total heat exchange surface area. To change the heat exchange effect, it is necessary to change the power of the compressor, indirectly increasing energy consumption and also damaging the service life of the compressor, with poor overall practicality. Therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problems existing in the existing heat exchangers for automotive heat pump air conditioning systems during use, such as large occupied space, unstable heat exchange, insufficient refrigeration performance, temperature uniformity, and drainage performance, a dual-purpose indoor heating and cooling double-layer parallel flow air conditioning heat exchanger for vehicles is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A dual-purpose indoor heating and cooling double-layer parallel flow air conditioning heat exchanger for vehicles, including a flow guiding mechanism, including a first header, a second header, a third header, a fourth header, and a double-piece partition. The first header and the fourth header are symmetrically arranged front and back, and at the same time, the second header and the third header are symmetrically arranged front and back; and an exchange mechanism, including an exchange component and a guard plate. The two guard plates are symmetrically arranged in the vertical direction, and two exchange components are arranged in alignment in the front-back direction between the two guard plates. One of the exchange components is located between the first header and the second header, and the other exchange component is located between the third header and the fourth header. 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; on the side of the first header, the second header, the third header, and the fourth header away from the exchange component, three partition slots are opened in the vertical direction. Let the distance between the two partition slots above vertically be h 1 , and the distance between the two partition slots below vertically be h 2 , then the h in the first header and the fourth header 1 : h 2 = 1:2, and the h in the second header and the third header 1 : h 2 = 2:1. The same double-piece partition is inserted into the two partition slots on the same plane in the first header and the fourth header, and the same double-piece partition is inserted into the two partition slots on the same plane in the second header and the third header; on one side of the second header between the two double-piece partitions below, a plurality of communication holes are arranged in an array in the vertical direction, and a communication sleeve for inserting into the communication holes is fixed on an outer side of the third header.

[0006] The beneficial effects of the present invention are as follows: When this kind of air conditioner heat exchanger is used as an evaporator (absorbing heat), the heat transfer agent enters from the top of the first header pipe. When flowing into the upper part of the first header pipe, it enters the second header pipe through the flat tube. Through the diversion of the second header pipe, the heat transfer agent flows into the middle and lower positions of the second header pipe and then enters the middle and lower positions of the first header pipe through the flat tube. Through the guidance of the first header pipe, the heat transfer agent then enters the second header pipe through the flat tube at the lower end of the first header pipe. Through the cooperation of the communication hole and the communication sleeve, when the heat transfer agent flows into the lower position of the third header pipe, through the transportation of the flat tube, the heat transfer agent enters the lower end of the fourth header pipe from the lower end of the third header pipe. With the upward guidance of the fourth header pipe and the transportation of the flat tube, the heat transfer agent enters the middle and lower parts of the third header pipe again. With the guidance of the third header pipe, the heat transfer agent is transported to the upper end of the third header pipe, and finally flows into the upper end of the fourth header pipe through the flat tube and is finally discharged from the delivery pipe at the top of the fourth header pipe. When the heat transfer agent flows through the flat tube, it is combined with the corrugated fins to achieve heat absorption and temperature reduction. When used as a condenser (releasing heat), the heat transfer agent enters from the delivery pipe at the upper end of the fourth header pipe and flows in the reverse direction according to the above steps; Through the above settings, the heat transfer agent can circulate in six processes. The six-process structure can greatly improve the temperature uniformity on the premise of meeting the refrigeration and heating performance, replacing traditional structures such as flow splitters and flow dividing partitions, simplifying the product structure, reducing costs, and effectively saving installation space on the premise of realizing both refrigeration and heating functions, with good thermal stability.

[0007] As a preferred embodiment of a vehicle interior dual-purpose heating and cooling double-layer parallel flow air conditioner heat exchanger of the present invention, wherein: a plurality of slots are arranged in an array along the vertical direction on one side of the first header pipe, the second header pipe, the third header pipe and the fourth header pipe close to the exchange component. First plug plates inserted into the slots are symmetrically fixed at both ends of the flat tube. The cross-section of the corrugated fin is in a sine wave shape. The corrugated fins are clamped between two flat tubes, and both ends of the corrugated fins are flush with the flat tubes.

[0008] As a preferred embodiment of a vehicle interior dual-purpose heating and cooling double-layer parallel flow air conditioner heat exchanger of the present invention, wherein: delivery pipes are welded and fixed on the top surfaces of the end covers above the first header pipe and the fourth header pipe, and the other ends of the two delivery pipes are fixedly connected to the same flow-condensing plate; through holes for material passage are respectively arranged in the areas of the uppermost double-piece partition in the first header pipe located inside the first header pipe and the fourth header pipe.

[0009] In view of the problems of single adjustment of heat exchange efficiency and poor practicability of existing heat exchangers, a further optimized solution is made for a dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger of the present invention. Specifically: there is also an adjustment mechanism respectively arranged at the upper end positions inside the first header and the fourth header. The adjustment mechanism includes an adjustment rod and a first gear disk. 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 disk meshing with the first gear disk is fixedly sleeved on the outer side wall of the lower end of the adjustment rod. At the same time, a second gear disk is fixedly arranged on the top surface of the adjustment rod. A convex column is fixedly arranged in the middle of the bottom surface of the first gear disk, and a convex groove for clearance fit with the convex column is opened on the top surface of the double-piece partition. A plurality of second sector-shaped through grooves are circumferentially arranged on the end surface of the first gear disk. On the double-piece partition outside the convex groove, a number of first sector-shaped through grooves equal to that of the second sector-shaped through grooves are circumferentially arranged, and the first sector-shaped through grooves are directly below the rotation locus surface of the second sector-shaped through grooves.

[0010] Another beneficial effect of the present invention is that when the air conditioner heat exchanger is in use, the rotation of the third gear disk can be realized by rotating the adjustment rod. Also, due to the meshing setting between the third gear disk and the first gear disk, the rotation of the first gear disk is ultimately realized, so as to adjust the overlapping position between the first sector-shaped through groove and the second sector-shaped through groove. Such an adjustment method can enable the heat exchange medium to directly flow through the first sector-shaped through groove, and the heat exchange medium no longer follows the traditional six-process flow heat exchange. Because when the heat exchange medium flows in the traditional six processes, at the end of the flow, due to the small temperature difference between the heat exchange medium and the outside world, the heat exchange rate at the end of the six processes decreases, resulting in the deficiency that the heat exchange effect of the first half of the six processes is good while that of the second half is poor on the outside. Through the design of directly flowing the heat exchange medium through the first sector-shaped through groove in this application, high heat exchange efficiency can be maintained throughout the entire heat exchange process. This setting increases the richness of the heat exchange efficiency adjustment method, has better practicability, and can effectively reduce the loss of the compressor.

[0011] As a preferred solution of a dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger of the present invention, specifically: a fitting hole for the adjustment rod to slide through is opened on the double-piece partition. A placement ring groove is circumferentially opened in the middle of the inner wall of the fitting hole, and a sealing ring is in clearance fit in the placement ring groove. An outer sealing ring coaxial with the first gear disk is fixedly arranged on the bottom surface of the first gear disk outside the second sector-shaped through groove, and a sealing ring groove for the outer sealing ring to be in clearance fit is opened on the top surface of the double-piece partition.

[0012] As a preferred embodiment of the dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger for vehicles of the present invention, the following is provided: a first rectangular blind groove is formed on the top surface of the adjusting rod, a first rectangular insert block that is in clearance fit with the first rectangular blind groove is fixedly provided on the bottom surface of the second gear disk, and the first rectangular insert block and the adjusting rod are fixedly connected by bolt cooperation; a second rectangular blind groove is formed on the top surface of the convex column, a second rectangular insert block that is in clearance fit with the second rectangular blind groove is fixedly provided in the middle of the bottom surface of the first gear disk, and the second rectangular insert block and the convex column are fixedly connected by bolt cooperation.

[0013] As a preferred embodiment of the dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger for vehicles of the present invention, the following is provided: a driving mechanism is further included and is arranged above the exchange mechanism. The driving mechanism includes a rack rod, a linkage rod, and a mounting block. The two rack rods are in one-to-one meshing connection with the two second gear disks. One end of the rack rod is fixedly provided with a connecting rod, and the other end of the connecting rod penetrates through the first header or the fourth header and is fixedly connected to the linkage rod; an adsorption plate is fixedly provided on the top surface of the linkage rod on the other side relative to the side where the connecting rod is provided, and a mounting block is fixedly provided on the top surface of the guard plate at the position between the two adsorption plates. An electromagnetic plate is fixedly provided on the side surface of the mounting block close to the adsorption plate.

[0014] As a preferred embodiment of the dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger for vehicles of the present invention, the following is provided: T-shaped columns are symmetrically and fixedly provided 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. Springs are slidably sleeved on the T-shaped columns at the position between the adsorption plate and the mounting block.

[0015] As a preferred embodiment of the dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger for vehicles of the present invention, the following is provided: convex holes for the connecting rod to slide and be sleeved are formed on both the first header and the fourth header, and rubber rings are provided at one end with a large diameter dimension of the convex holes. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them: Figure 1 It is a schematic diagram of the overall structure of a dual-purpose indoor heating and cooling double-layer parallel flow air conditioner heat exchanger for vehicles.

[0017] Figure 2 For the present invention Figure 1 Left rear view of the structure.

[0018] Figure 3 For the present invention Figure 1 Exploded view of the structure.

[0019] Figure 4 For the present invention Figure 3 Left rear view of the structure

[0020] Figure 5 Schematic diagram of the cooperation between the adjustment mechanism and the double-piece partition in the present invention

[0021] Figure 6 For the present invention Figure 5 Exploded view of the structure

[0022] Figure 7 For the present invention Figure 6 Bottom schematic view of the structure

[0023] Figure 8 Internal structure schematic diagram of the fourth current collector pipe in the present invention

[0024] Figure 9 Overall structure schematic diagram of the drive mechanism in the present invention

[0025] Figure 10 Schematic diagram of a flow direction of the heat transfer agent in the structure of the present invention Specific embodiments

[0026] To make the above objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification

[0027] In the following description, many specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below

[0028] Secondly, the so-called "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 different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments

[0029] Furthermore, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included Embodiment 1

[0030] Refer to Figure 1 、 Figure 2 、 Figure 3 andFigure 4 , which is the first embodiment of the present invention. This embodiment provides a vehicle interior dual-purpose heating and cooling double-layer parallel flow air-conditioning heat exchanger. This air-conditioning heat exchanger is used in cooperation with a heat pump system. The flow guiding mechanism 100 is used for guiding the heat transfer agent in six processes, and the exchange mechanism 200 is used for heat exchange.

[0031] Specifically, it includes a flow guiding mechanism 100, which includes a first header 101, a second header 102, a third header 103, a fourth header 104, and a double-piece partition 105. The first header 101 and the fourth header 104 are symmetrically arranged front and back, and at the same time, the second header 102 and the third header 103 are symmetrically arranged front and back; and an exchange mechanism 200, which includes 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 arranged in alignment in the front-back direction between the two guard plates 202. One of the exchange components is located between the first header 101 and the second header 102, and the other exchange component is located between the third header 103 and the fourth header 104.

[0032] See Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown in, the exchange component includes a plurality of flat tubes 201 arranged in an array in the vertical direction and corrugated fins. 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; on the side of the first header 101, the second header 102, the third header 103, and the fourth header 104 away from the exchange component, three partition slots 107 are opened in the vertical direction. Let the distance between the two partition slots 107 above be h 1 , and the distance between the two partition slots 107 below be h 2 , then the h in the first header 101 and the fourth header 104 1 : h 2 = 1:2, and the h in the second header 102 and the third header 103 1 : h 2= 2:1. This setting, in combination with the double - sheet partition 105, enables the heat - exchange agent to flow in a six - flow pattern when flowing through the diversion mechanism 100 and the exchange mechanism 200. Two partition slots 107 on the same plane in the first header 101 and the fourth header 104 are inserted with the same double - sheet partition 105. Two partition slots 107 on the same plane in the second header 102 and the third header 103 are inserted with the same double - sheet partition 105. The double - sheet partition 105 can achieve a partition effect in the first header 101, the second header 102, the third header 103, and the fourth header 104. In actual use, the double - sheet partition 105 can be fixed in cooperation by using an adhesive or welding method; 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, a plurality of slots 108 are arranged in a vertical array. At both ends of the flat tube 201, first plug - plates 201a inserted into the slots 108 are symmetrically fixed. This setting can enable the lateral flow of the heat - exchange agent. The cross - section of the corrugated fin is in a sine - wave shape, and the corrugated fin is clamped between the two flat tubes 201, and both ends of the corrugated fin are flush with the flat tube 201. On one side of the second header 102 at the position between the two double - sheet partitions 105 below, a plurality of communication holes 102a are arranged in a vertical array, and a communication sleeve 103a for insertion into the communication holes 102a is fixed on one outer side of the third header 103. This setting can enable the heat - exchange agent to flow between the second header 102 and the third header 103. In actual use, the mating position between the communication holes 102a and the communication sleeve 103a should be sealed; When the above - mentioned setting is in use, when it is used as an evaporator, such as Figure 10As shown in the figure, the heat transfer agent enters from the top of the first header 101. When flowing into the upper part of the first header 101, it enters the second header 102 through the flat tube 201. Through the diversion of the second header 102, the heat transfer agent flows into the middle and lower positions of the second header 102 and then enters the middle and lower positions of the first header 101 through the flat tube 201. Through the guidance of the first header 101, the heat transfer agent then enters the second header 102 through the flat tube 201 at the lower end of the first header 101. Through the cooperation of the communication hole 102a and the communication sleeve 103a, when the heat transfer agent flows into the lower position of the third header 103, through the transportation of the flat tube 201, the heat transfer agent 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 transfer agent enters the middle and lower parts of the third header 103 again. With the guidance of the third header 103, the heat transfer agent 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 (heat release), the heat transfer agent enters from the delivery pipe 106a at the upper end of the fourth header 104 and flows reversely according to the above steps.

[0033] Furthermore, on the top surfaces of the end caps above the first header 101 and the fourth header 104, delivery pipes 106a are welded and fixed. And the other ends of the two delivery pipes 106a are fixedly connected to the same flow-condensing plate 106. The setting of the flow-condensing plate 106 can be connected to the heat pump system. Through holes 105a are respectively opened in the regions of the first header 101 and the fourth header 104 located inside the uppermost double-piece partition 105 of the first header 101. The through holes 105a are provided for the entry and exit of the heat transfer agent. In addition, during use, according to the actual situation, two such devices can be arranged in the heat pump system. The larger device is used as the main heat exchanger, and the other smaller device is used as the standby heat exchanger. When the heat exchange capacity is insufficient, it is started and intervened, which can greatly improve the heat exchange performance of the heat pump system. Embodiment 2

[0034] Refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 This is the second embodiment of the present invention. Based on the previous embodiment, the difference is that in order to adjust the flow path of the heat transfer agent as needed, thereby adjusting the heat exchange method to make the overall heat exchange more uniform and balanced and effectively adjusting the heat exchange efficiency, this embodiment is proposed.

[0035] Specifically, it further includes an adjusting mechanism 400 respectively arranged at the upper end positions inside the first manifold 101 and the fourth manifold 104. The adjusting mechanism 400 includes an adjusting rod 401 and a first gear disk 402. The adjusting rod 401 slidably passes through the uppermost double-piece partition 105, and the lower end of the adjusting 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 position the lower end of the adjusting rod 401. A third gear disk 401b meshing with the first gear disk 402 is fixedly sleeved on the outer side wall of the lower end of the adjusting rod 401. At the same time, a second gear disk 401a is fixedly arranged on the top surface of the adjusting rod 401. A convex column 402b is fixedly arranged in the middle of the bottom surface of the first gear disk 402, and a convex groove 105d-2 for clearance fit with the convex column 402b is opened on the top surface of the double-piece partition 105. This setting can realize the positioning rotation of the first gear disk 402 on the double-piece partition 105. A plurality of second sector-shaped through grooves 402a are circumferentially arrayed on the end surface of the first gear disk 402. A plurality of first sector-shaped through grooves 105d equal in number to the second sector-shaped through grooves 402a are circumferentially arrayed on the double-piece partition 105 outside the convex groove 105d-2, and the first sector-shaped through grooves 105d are directly below the rotation trajectory surface of the second sector-shaped through grooves 402a. A fitting hole 105b for the adjusting rod 401 to slidably pass through is opened on the double-piece partition 105. A placement ring groove 105b-1 is circumferentially opened in the middle of the inner wall of the fitting hole 105b. A sealing ring 105c is in clearance fit in the placement ring groove 105b-1. This setting can realize both the free rotation of the adjusting rod 401 in the fitting hole 105b and the sealing of the fit between the adjusting rod 401 and the fitting hole 105b during use. An outer sealing ring 402c coaxial with the first gear disk 402 is fixedly arranged on the bottom surface of the first gear disk 402 outside the second sector-shaped through groove 402a. A sealing ring groove 105d-1 for clearance fit with the outer sealing ring 402c is opened on the top surface of the double-piece partition 105. This setting can realize the sealing performance of the fit between the first gear disk 402 and the double-piece partition 105, so as to ensure that the heat exchange agent always flows through the first sector-shaped through grooves 105d and the second sector-shaped through grooves 402a. In actual use, sealing oil can be filled in the sealing ring groove 105d-1 at the lower end of the outer sealing ring 402c to improve the sealing effect. When the above settings are in use, the rotation of the third gear disc 401b can be achieved by rotating the adjusting rod 401. Also, due to the meshing setting between the third gear disc 401b and the first gear disc 402, ultimately, the adjusting rod 401 can drive the first gear disc 402 to rotate around the convex column 402b as the axis, thereby realizing the adjustment of the overlapping area between the second sector-shaped through groove 402a and the first sector-shaped through groove 105d. This adjustment method can enable the heat exchange agent to directly pass through the first sector-shaped through groove 105d and adjust the change in the flow rate of the heat exchange agent. Such an adjustment method can improve the uniformity of heat exchange. Additionally, in actual use, the adjusting mechanism 400 in the first manifold 101 and the fourth manifold 104 should be adjusted separately to effectively adjust the heat exchange uniformity in both refrigeration and heating.

[0036] Furthermore, a first rectangular blind groove 401c is formed on the top surface of the adjusting rod 401. A first rectangular insert block 401a-1 that is in clearance fit with the first rectangular blind groove 401c is fixedly provided on the bottom surface of the second gear disc 401a, and the first rectangular insert block 401a-1 and the adjusting rod 401 are fixedly connected by bolt cooperation. In this way, the detachable connection between the adjusting rod 401 and the second gear disc 401a can be achieved. A second rectangular blind groove 402b-1 is formed on the top surface of the convex column 402b. A second rectangular insert block 402d that is in clearance fit with the second rectangular blind groove 402b-1 is fixedly provided in the middle of the bottom surface of the first gear disc 402, and the second rectangular insert block 402d and the convex column 402b are fixedly connected by bolt cooperation. This setting can achieve the detachable connection between the first gear disc 402 and the convex column 402b.

[0037] In addition, it should be noted that the heat exchange agent in this device is a medium commonly used in a heat pump system to carry heat, and its form is gas or liquid. Its main function is to achieve internal and external heat exchange. Due to the prior art, it will not be elaborated here. Embodiment 3

[0038] Referring to Figure 1 、 Figure 6 and Figure 9 , this is the third embodiment of the present invention. This embodiment is based on any of the above embodiments. The difference is that, in order to facilitate the good implementation of the present invention, the structure for driving the adjusting mechanism to act is detailed.

[0039] Specifically, it further includes a driving mechanism 300 disposed above the switching mechanism 200. The driving mechanism 300 includes a rack bar 301, a linkage rod 302, and a mounting block 303. The two rack bars 301 are arranged in one-to-one correspondence and meshed with the two second gear discs 401a. By the lateral movement of the rack bar 301, the rotation of the gear disc 401b can be achieved, and further the rotation of the adjusting rod 401 driving the adjusting disc 402 can be realized. One end of the rack bar 301 is fixedly provided with a connecting rod 301a, and the other end of the connecting rod 301a penetrates through the first manifold 101 or the fourth manifold 104 and is fixedly connected to the linkage rod 302. On the top surface of the linkage rod 302 on the side opposite to the side where the connecting rod 301a is provided, an adsorption plate 302a is fixedly provided, and on the top surface of the guard plate 202 at the position between the two adsorption plates 302a, a mounting block 303 is fixedly provided. On the side surface of the mounting block 303 close to the adsorption plate 302a, an electromagnetic plate 303a is fixedly provided. This setting can enable the connecting rod 301a in the first manifold 101 and the fourth manifold 104 to act independently to meet different requirements for refrigeration and heating. On the mounting blocks 303 on both sides of the electromagnetic plate 303a, T-shaped columns 303b are symmetrically fixedly provided, 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 at the position between the adsorption plate 302a and the mounting block 303. The setting of the spring 303b-1 can achieve the reset function of the adsorption plate 302a, and the setting of the T-shaped column 303b can play a role in limiting and guiding the movement of the adsorption plate 302a. When the above setting is in use, through the setting of the electromagnetic plate 303a in cooperation with the spring 303b-1, by energizing and de-energizing the electromagnetic plate 303a, the adsorption plate 302a can be made to reciprocate along the axis of the T-shaped column 303b. In this way, the connecting rod 301a can be made to drive the linkage rod 302 to perform lateral reciprocating movement, and further the forward and reverse rotation of the second gear disc 401a can be realized.

[0040] In addition, it should be noted that the device is also provided with a controller (not shown in the drawings) for controlling each electrical component in the device. The controller is arranged at a position convenient for the staff to operate, such as in the vehicle-mounted central control system.

[0041] Furthermore, convex holes for the connecting rod 301a to be slidably sleeved are provided on both the first manifold 101 and the fourth manifold 104, and a rubber ring is provided at one end with a large diameter of the convex hole. The setting of the rubber ring can achieve the sealing of the fit.

[0042] In addition, it should be noted that the components not described in detail in this article are of the prior art.

[0043] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered 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 specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present invention or those features that are not relevant to the implementation of the present invention).

[0045] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A double-layer parallel flow air conditioning heat exchanger for indoor cooling and heating of a vehicle, characterized in that: include, The 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 component and a guard plate (202), wherein the two guard plates (202) are symmetrically arranged in a vertical direction, and two exchange components are arranged between the two guard plates (202) in an aligned position along a front-to-rear direction, wherein one exchange component is located between a first header (101) and a second header (102), and the other exchange component is located between a third header (103) and a fourth header (104), and the exchange component 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 current collecting tube (101), the second current collecting tube (102), the third current collecting tube (103) and the fourth current collecting tube (104) are each provided with three partition grooves (107) in the vertical direction on the side surface away from the exchange assembly. 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 current collecting tube (101) and the fourth current collecting tube (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 header (102) has communication holes (102a) arranged in an array along the vertical direction on one side surface between the two double-piece baffles (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 header (103).

2. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 1, characterized in that: A plurality of slots (108) are arranged in an array along the vertical direction 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 assembly; first plug 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 in the shape of a sine wave; 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. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in 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 plate (105) at the top of the first header (101) is provided with material passing holes (105a) in the areas inside the first header (101) and the fourth header (104).

4. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 1, 2 or 3, characterized in that: It also includes adjustment mechanisms (400) respectively arranged at the upper ends of the first header (101) and the fourth header (104), the adjustment mechanism (400) comprising 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 inserted into the positioning hole (105e) on the top surface of the double-piece partition (105) located in the middle, and 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), and a second toothed disc (401a) is fixedly arranged on the top surface of the adjusting rod (401), a convex column (402b) is fixedly arranged in the middle 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 opened 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).

5. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 4, characterized in that: The double-piece partition plate (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, 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).

6. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 5, characterized in that: A first rectangular blind groove (401c) is provided on the top surface of the adjusting rod (401), a first rectangular plug-in block (401a-1) is fixedly provided 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-in block (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 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 block (402d) and the convex column (402b) are fixed by bolts.

7. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 6, characterized in that: It also includes a driving mechanism (300) arranged above the exchange mechanism (200), the driving mechanism (300) including 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 disposed at one end of the rack rod (301), and the other end of the connecting rod (301a) passing through the first header (101) or the fourth header (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).

8. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 7, 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).

9. A dual-purpose double-layer parallel flow air conditioning heat exchanger for cooling and heating the interior of a vehicle as claimed in claim 8, 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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