Self-adaptive adjustable evaporator

Abstract

The invention discloses a self-adaptive adjustable evaporator. According to the technical scheme, the heat exchanger comprises a heat exchange channel and fins arranged outside the heat exchange channel, the heat exchange channel is provided with an input hole and an output hole, the hole diameter of the output hole is larger than that of the input hole, the heat exchange channel is arranged in a bent and folded mode and is divided into a heat exchange part and a bent part, and an adjusting channel is arranged on the heat exchange channel. The adjusting channel is connected with a part of the bending part and an input hole, an adjusting hole is formed in the adjusting channel, a supplementing hole is formed in a part of the bending part, the adjusting hole is communicated with the supplementing hole, an adjusting mechanism is arranged in the adjusting channel, and the adjusting mechanism is used for opening or closing the adjusting hole. More refrigerants can be subjected to heat exchange in the temperature and state interval with the highest heat exchange efficiency, the heat exchange efficiency is improved, the time needed for cooling in a vehicle under the high-temperature condition in summer can be shortened, and the driving experience is improved.

Description

Technical Field

[0001] The invention relates to the field of evaporators, and more particularly to an adaptive and adjustable evaporator. Background Art

[0002] The automobile air conditioning system is a device that realizes cooling, heating, ventilation and air purification of the air in the car, and is one of the indicators to measure whether the functions of the car are complete. The evaporator is a key component in the automobile air conditioning unit. Its structural type, material properties and manufacturing process affect the working efficiency of the entire air conditioning system. When the evaporator is working, the low-temperature and low-pressure liquid refrigerant output from the expansion valve enters the evaporator. As it flows through the pipes in the evaporator, there are fins on the outer wall of the pipes for heat exchange. The liquid refrigerant in the pipes absorbs heat and evaporates, turning into a low-temperature and low-pressure gas. The evaporation and heat absorption make the temperature near the evaporator low. The blower runs to blow the low temperature into the car to cool it down. However, the refrigerant movement route in the existing evaporator is fixed. At different temperatures, the heat absorption efficiency of the refrigerant is different. The load of the compressor is controlled only by the blower, and the control method is single. Especially in the high temperature in summer, it takes a long time to cool down the car, which affects the driving experience. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a self-adaptive adjustable evaporator to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adaptive adjustable evaporator, comprising a heat exchange channel and a fin arranged outside the heat exchange channel, the heat exchange channel having an input hole and an output hole, the aperture of the output hole being larger than the aperture of the input hole, the heat exchange channel being bent and folded, and divided into a heat exchange portion and a bent portion, an adjustment channel being provided on the heat exchange channel, the adjustment channel being connected to a part of the bent portion, the adjustment channel being connected to the input hole, the adjustment channel being provided with an adjustment hole, a part of the bent portion being provided with a supplementary hole, the adjustment hole being communicated with the supplementary hole, an adjustment mechanism being provided in the adjustment channel, the adjustment mechanism being used to open or close the adjustment hole, and the adjustment mechanism comprising: An adjustment guide rail is arranged on the adjustment channel and is located on a side close to the curved portion, and the adjustment guide rail is located on both sides of the adjustment hole; An adjustment plate is slidably arranged on the adjustment guide rail, and the adjustment plate is fitted with the adjustment channel; An adjustment motor is fixedly arranged in the adjustment channel, and the adjustment motor is connected to the adjustment plate to drive the adjustment plate to translate; Adjustment notches are arranged on the adjustment plate at intervals.

[0005] As a further improvement of the present invention, an outwardly protruding convex portion is provided on the upper side of the heat exchange portion where the supplementary hole is provided.

[0006] As a further improvement of the present invention, a baffle is provided on the adjustment plate, and the baffle is located in the heat exchange channel. The baffle is bent and its shape matches the upper side of the heat exchange channel. An acceleration notch is provided on the baffle, and when the baffle collides with the inner wall of the heat exchange channel below, the acceleration notch and the inner wall of the heat exchange channel form an acceleration hole.

[0007] As a further improvement of the present invention, the aperture of the acceleration hole gradually decreases from bottom to top, and the aperture of the adjustment hole gradually increases from bottom to top.

[0008] As a further improvement of the present invention, the fins on the upper side of the heat exchange part are provided with a guide part, the guide part is offset from the highest point of the heat exchange part, and the guide part includes: A guide hole is arranged on the fin; A guide plate is arranged on the fin, adjacent to the guide hole, vertically arranged, and forms an angle with the fin; Side plates, connecting the guide plate and the fins, the side plates being located at the upper and lower sides of the guide plate; The guide plate, the side plate and the guide hole are integrally formed by stamping the fins.

[0009] As a further improvement of the present invention, the guide portion partially overlaps with the raised portion at a height position.

[0010] As a further improvement of the present invention, a reinforcing rib is provided on the upper side of the baffle, and the reinforcing rib is located in the middle of the baffle.

[0011] As a further improvement of the present invention, a first accommodating groove is provided on the upper side of the adjustment hole, and a second accommodating groove is provided on the curved portion. The positions of the first accommodating groove and the second accommodating groove correspond to each other, and the reinforcing rib can be embedded in the first accommodating groove and the second accommodating groove.

[0012] As a further improvement of the present invention, a support rod is provided on the adjustment plate, and the support rod is located in the adjustment channel and abuts against the inner wall of the adjustment channel. The support rod is arranged in an arc shape, with one end connected to the adjustment plate being higher and the other end abutting against the inner wall of the adjustment channel being lower.

[0013] As a further improvement of the present invention, the baffle comprises: A base plate, fixedly arranged on the adjustment plate; The deformation plate is fixedly arranged on the base plate, the acceleration notch is arranged on the deformation plate, and the deformation plate is made of water-absorbing resin.

[0014] The beneficial effect of the present invention is that when the adjustment mechanism is in operation, more refrigerant is in the temperature and state range with the highest heat exchange efficiency for heat exchange, thereby improving the heat exchange efficiency, and replenishing the refrigerant when increasing the air intake of the automobile air conditioner to increase the cooling capacity, so that when the air intake volume is increased, the temperature of the air flow blown into the car is stable, and there is no need to adjust the air conditioning temperature a second time. It is easy to use, can shorten the time required to cool down the car under high temperature conditions in summer, and improves the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the connection between the bending part and the adjustment channel; Figure 3 It is a schematic diagram of the structure of the protrusion, fins, and guide part; Figure 4 It is a structural diagram of the adjustment mechanism; Figure 5 for Figure 2 A magnified view of part A; Figure 6 This is a structural diagram of the base plate, deformation plate, acceleration notch, and reinforcement ribs; Figure 7 It is a schematic diagram of the top view of the structure of the guide part.

[0016] Marking instructions: 1. Heat exchange channel; 11. Heat exchange part; 111. Raised part; 12. Bending part; 121. Supplementary hole; 2. Fin; 3. Adjustment channel; 31. Adjustment hole; 4. Adjustment mechanism; 41. Adjustment guide rail; 42. Adjustment plate; 421. Adjustment notch; 43. Adjustment motor; 5. Baffle; 51. Acceleration notch; 52. Acceleration hole; 53. Reinforcement rib; 541. Base plate; 542. Deformation plate; 6. Guide part; 61. Guide hole; 62. Guide plate; 63. Side plate; 71. First accommodating groove; 72. Second accommodating groove; 8. Support rod. DETAILED DESCRIPTION

[0017] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0018] Reference Figure 1 — Figure 7As shown, the adaptive adjustable evaporator of this embodiment includes a heat exchange channel 1 and a fin 2 arranged outside the heat exchange channel 1, the heat exchange channel 1 has an input hole and an output hole, the aperture of the output hole is larger than the aperture of the input hole, the heat exchange channel 1 is bent and folded, and is divided into a heat exchange portion 11 and a bent portion 12, the heat exchange channel 1 is provided with an adjustment channel 3, the adjustment channel 3 is connected to a part of the bent portion 12, the adjustment channel 3 is connected to the input hole, the adjustment channel 3 is provided with an adjustment hole 31, a part of the bent portion 12 is provided with a supplementary hole 121, the adjustment hole 31 and the supplementary hole 121 are communicated with each other, an adjustment mechanism 4 is provided in the adjustment channel 3, the adjustment mechanism 4 is used to open or close the adjustment hole 31, and the adjustment mechanism 4 includes: An adjustment rail 41 is provided on the adjustment channel 3 and is located on a side close to the curved portion 12 . The adjustment rail 41 is located on both sides of the adjustment hole 31 . An adjustment plate 42 is slidably disposed on the adjustment rail 41, and the adjustment plate 42 is in contact with the adjustment channel 3; An adjustment motor 43 is fixedly disposed in the adjustment channel 3, and the adjustment motor 43 is connected to the adjustment plate 42, and is used to drive the adjustment plate 42 to translate; Adjustment notches 421 are arranged at intervals on the adjustment plate 42 .

[0019] Through the above technical solution, under basic conditions, the adjustment plate 42 closes the adjustment hole 31. When the evaporator of the present application is used, the warm and low-pressure liquid refrigerant enters the evaporator, flows along the heat exchange channel 1 in the evaporator, and the fins 2 on the outer wall of the heat exchange channel 1 perform heat exchange. The liquid refrigerant in the heat exchange channel 1 absorbs heat and evaporates, becoming a low-temperature and low-pressure gas. The evaporation and heat absorption make the temperature near the evaporator low, and the blower runs to blow the low temperature into the car to cool it down. When the external temperature is high or the car needs to be cooled quickly, the blower gear will be turned on. At this time, the heat exchange of the evaporator box is accelerated, so that the temperature of the gaseous refrigerant leaving the evaporator box rises, and the temperature sensing package controls the expansion valve to increase the opening, increase the refrigerant flow rate, and then increase the cooling capacity. At the same time, the adjustment mechanism 4 is running, and the adjustment motor 43 rotates to drive the adjustment plate 42 to move downward. The adjustment notch 421 corresponds to the position of the adjustment hole 31. Part of the refrigerant enters the adjustment channel 3, and then enters the heat exchange channel 1 through the adjustment notch 421, the adjustment hole 31, and the supplementary hole 121, and enters from the adjustment channel 3. The liquid refrigerant in the heat exchange channel 1 is mixed with the gaseous refrigerant in the heat exchange channel 1, and heat is exchanged through the heat exchange channel 1, so that more refrigerant is in the temperature and state range with the highest heat exchange efficiency for heat exchange, thereby improving the heat exchange efficiency, and replenishing it when increasing the air intake of the automobile air conditioner to increase the cooling capacity. When the air intake is increased, the temperature of the air flow blown into the car is stable, avoiding the situation in which the air intake in a high temperature environment causes the air flow blowing into the car to increase. There is no need to adjust the air conditioning temperature a second time, and it is easy to use, can shorten the time required to cool down the car under high temperature conditions in summer, and improve the driving experience.

[0020] Specifically, the adjustment rail 41 is arranged on the adjustment channel 3, and the adjustment plate 42 is slidably connected to the adjustment rail, so that the adjustment plate 42 is stable in position in a static state, closing the adjustment hole 31 to avoid leakage; the position is stable during movement, and the service life is extended.

[0021] As an improved specific implementation, an outwardly protruding convex portion 111 is provided on the upper side of the heat exchange portion 11 above the supplementary hole 121 .

[0022] Through the above technical solution, the arc-shaped cross-sectional surface of the protrusion 111 increases the flow rate of the airflow passing through the protrusion 111, thereby increasing the heat exchange rate and the evaporation rate of the refrigerant in the heat exchange channel 1, thereby reducing the compression operating power and reducing energy consumption.

[0023] As an improved specific implementation, a baffle 5 is provided on the adjustment plate 42, and the baffle 5 is located in the heat exchange channel 1. The baffle 5 is bent and its shape matches the upper side of the heat exchange channel 1. An acceleration notch 51 is provided on the baffle 5. When the baffle 5 collides with the inner wall of the heat exchange channel 1 below, the acceleration notch 51 and the inner wall of the heat exchange channel 1 form an acceleration hole 52.

[0024] Through the above technical solution, the baffle 5 is located in the heat exchange channel 1. In the basic case, the adjustment plate 42 closes the adjustment hole 31. At this time, the adjustment plate 42 is in the upper position, and the upper side of the baffle 5 is in contact with the heat exchange channel 1 and cooperates with the adjustment guide rail 41, so that the adjustment plate 42 can better close the adjustment hole 31, thereby improving the strength and sealing between the heat exchange channel 1 and the adjustment channel 3 after closing.

[0025] When the adjustment mechanism 4 is running and the adjustment plate 42 descends, the adjustment notch 421 is connected with the adjustment hole 31 and the supplementary hole 121, the baffle 5 contacts the heat exchange channel 1, and an acceleration hole 52 is formed between the acceleration notch 51 and the inner wall of the heat exchange channel 1, thereby producing a Venturi effect. The gaseous refrigerant below increases its flow rate through the acceleration hole 52, and then is fully mixed with the refrigerant entering the heat exchange channel 1 through the adjustment channel 3, and continues to be transmitted, passing through the heat exchange area of ​​the heat exchange channel 1 for heat exchange, thereby further improving the heat exchange efficiency of the adjustment mechanism 4 during operation, shortening the time required for cooling down the vehicle interior under high temperature conditions in summer, and improving the driving experience.

[0026] Specifically, the baffle 5 is arranged in an arc shape. When the adjustment plate 42 descends, the upper side of the baffle 5 cooperates with the heat exchange channel 1 to form an upper guide portion, which can reduce the flow resistance of the refrigerant entering the heat exchange channel 1 from the adjustment channel 3 and increase the refrigerant replenishment speed. The lower side of the baffle 5 cooperates with the heat exchange channel 1 to form a lower guide portion, which increases the flow rate of the gaseous refrigerant in the acceleration hole 52, thereby improving the heat exchange efficiency.

[0027] As an improved specific implementation, the aperture of the acceleration hole 52 gradually decreases from bottom to top, and the aperture of the adjustment hole 31 gradually increases from bottom to top.

[0028] Through the above technical scheme, as the refrigerant moves upward in the heat exchange channel 1, the content of gaseous refrigerant gradually increases and the air pressure gradually decreases. By reducing the acceleration hole 52, the flow rate of the gaseous refrigerant output from the upper acceleration hole 52 is increased. By increasing the aperture of the adjustment hole 31, the adjustment gap 421, and the supplementary hole 121, the amount of liquid refrigerant flowing from the adjustment channel 3 to the heat exchange channel 1 can be increased, so that the gaseous refrigerant at each height can be mixed with an appropriate amount of liquid refrigerant, so that the refrigerant in the heat exchange channel 1 at each height can be heat exchanged at the temperature and state range with the highest heat exchange efficiency, thereby improving the heat exchange efficiency.

[0029] As an improved specific implementation, the fin 2 on the upper side of the heat exchange part 11 is provided with a guide part 6, and the guide part 6 is offset from the highest point of the heat exchange part 11, and the guide part 6 includes: The guide hole 61 is provided on the fin 2; The guide plate 62 is arranged on the fin 2, adjacent to the guide hole 61, and is vertically arranged to form an angle with the fin 2; Side plates 63, connecting the guide plate 62 and the fins 2, the side plates 63 are located at the upper and lower sides of the guide plate 62; The guide plate 62 , the side plate 63 , and the guide hole 61 are integrally formed by stamping the fin 2 .

[0030] Through the above technical solution, the guide part 6 is set, and when the airflow passes through the fin 2, part of the airflow collides with the guide plate 62, and then is guided by the guide plate 62, passes through the guide hole 61, enters the other side of the fin 2, and then leaves the fin 2, thereby increasing the heat dissipation area of ​​the fin 2 and the wind collision area of ​​the fin 2, which can improve the heat exchange efficiency. The side plate 63 connects the guide plate 62 and the fin 2, and the guide plate 62, the side plate 63, and the guide hole 61 are integrally stamped and formed by the fin 2, thereby improving the structural strength of the guide plate 62, improving the stability during use, and extending the service life.

[0031] As an improved specific implementation, the guide portion 6 partially overlaps with the raised portion 111 at a height position.

[0032] Through the above technical solution, the guide portion 6 partially overlaps with the raised portion 111 at a height position, further improving the heat exchange efficiency of the raised portion 111.

[0033] As an improved specific implementation, a reinforcing rib 53 is provided on the upper side of the baffle 5 , and the reinforcing rib 53 is located in the middle of the baffle 5 .

[0034] Through the above technical solution, the reinforcing ribs 53 improve the structural strength of the baffle 5, avoid deformation of the baffle 5, and extend the service life.

[0035] Specifically, there are two acceleration notches 51, which are located on both sides of the reinforcing rib 53. The refrigerant entering the heat exchange channel 1 from the adjustment channel 3 is diverted by the reinforcing rib 53, flows to both sides at a faster flow rate, and then matches with the acceleration hole 52, thereby improving the mixing effect of the gaseous refrigerant and the liquid refrigerant, thereby improving the subsequent heat exchange effect.

[0036] Specifically, the reinforcing rib 53 is arranged in a wedge shape.

[0037] As an improved specific implementation, a first accommodating groove 71 is provided on the upper side of the adjustment hole 31, and a second accommodating groove 72 is provided on the bending portion 12. The positions of the first accommodating groove 71 and the second accommodating groove 72 correspond to each other, and the reinforcing rib 53 can be embedded in the first accommodating groove 71 and the second accommodating groove 72.

[0038] Through the above technical solution, in the basic case, when the adjustment plate 42 closes the adjustment hole 31, part of the reinforcing rib 53 is embedded in the first accommodating groove 71, and part of the reinforcing rib 53 is embedded in the second accommodating groove 72. The position of the reinforcing rib 53 is restricted from multiple directions and angles, thereby improving the stability of the position of the baffle 5 in the basic case, thereby improving the stability of the position of the adjustment plate 42 in the basic case, and improving the sealing effect of the adjustment channel 3 and the heat exchange channel 1.

[0039] As an improved specific implementation, a support rod 8 is provided on the adjustment plate 42, and the support rod 8 is located in the adjustment channel 3 and abuts against the inner wall of the adjustment channel 3. The support rod 8 is arranged in an arc shape, with the end connected to the adjustment plate 42 being high and the end abutting against the inner wall of the adjustment channel 3 being low.

[0040] Through the above technical solution, the support rod 8 supports the adjustment plate 42, so that the position of the adjustment plate 42 is stable, and the adjustment hole 31 can be better closed in the basic state; and when the adjustment plate 42 moves downward and the adjustment channel 3 is connected with the heat exchange channel 1, the support rod 8 can assist in guiding the liquid refrigerant into the heat exchange channel 1, thereby reducing the refrigerant flow resistance.

[0041] As an improved specific implementation, the baffle 5 includes: A base plate 541 is fixedly arranged on the adjustment plate 42; The deformation plate 542 is fixedly arranged on the base plate 541 , and the acceleration notch 51 is arranged on the deformation plate 542 . The deformation plate 542 is made of water-absorbing resin.

[0042] Through the above technical solution, the base plate 541 is fixedly connected to the adjustment plate 42, and the deformation plate 542 is arranged at one end of the base plate 541 away from the adjustment plate 42. When the refrigerant runs in the heat exchange channel 1, the deformation plate 542 can absorb the moisture in the refrigerant more thoroughly, thereby preventing water from entering the compressor and increasing the service life of the equipment.

[0043] The deformation plate 542 deforms after absorbing water and bends downward, which can compensate for the deformation of the position of the deformation part during use, so that the deformation part can always form the acceleration hole 52 with the inner wall of the heat exchange channel 1, thereby extending the service life.

[0044] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An adaptive adjustable evaporator, comprising a heat exchange channel (1) and a fin (2) arranged outside the heat exchange channel (1), wherein the heat exchange channel (1) has an input hole and an output hole, and the hole diameter of the output hole is larger than the hole diameter of the input hole, characterized in that: The heat exchange channel (1) is bent and folded, and is divided into a heat exchange portion (11) and a bent portion (12). An adjustment channel (3) is provided on the heat exchange channel (1). The adjustment channel (3) is connected to a portion of the bent portion (12). The input hole of the adjustment channel (3) is connected. An adjustment hole (31) is provided on the adjustment channel (3). A supplementary hole (121) is provided on a portion of the bent portion (12). The adjustment hole (31) and the supplementary hole (121) are connected to each other. An adjustment mechanism (4) is provided in the adjustment channel (3). The adjustment mechanism (4) is used to open or close the adjustment hole (31). The adjustment mechanism (4) comprises: An adjustment guide rail (41) is arranged on the adjustment channel (3) and is located on a side close to the curved portion (12), and the adjustment guide rail (41) is located on both sides of the adjustment hole (31); An adjustment plate (42) is slidably arranged on the adjustment guide rail (41), and the adjustment plate (42) is in contact with the adjustment channel (3); An adjustment motor (43) is fixedly arranged in the adjustment channel (3), and the adjustment motor (43) is connected to the adjustment plate (42) and is used to drive the adjustment plate (42) to translate; Adjustment notches (421), wherein the adjustment notches (421) are arranged at intervals on the adjustment plate (42).

2. The self-adaptive adjustable evaporator according to claim 1, characterized in that: An outwardly protruding convex portion (111) is provided on the upper side of the heat exchange portion (11) on which the supplementary hole (121) is provided.

3. The adaptive adjustable evaporator according to claim 1 or 2, characterized in that: The adjustment plate (42) is provided with a baffle (5), the baffle (5) is located in the heat exchange channel (1), the baffle (5) is bent, and its shape matches the upper side of the heat exchange channel (1), and the baffle (5) is provided with an acceleration notch (51), and when the baffle (5) contacts the inner wall of the heat exchange channel (1) below, the acceleration notch (51) and the inner wall of the heat exchange channel (1) form an acceleration hole (52).

4. The self-adaptable adjustable evaporator according to claim 3, characterized in that: The diameter of the acceleration hole (52) gradually decreases from bottom to top, and the diameter of the adjustment hole (31) gradually increases from bottom to top.

5. The self-adaptable adjustable evaporator according to claim 3, characterized in that: The fin (2) on the upper side of the heat exchange portion (11) is provided with a guide portion (6), the guide portion (6) being offset from the highest point of the heat exchange portion (11), and the guide portion (6) comprising: A guide hole (61) is provided on the fin (2); A guide plate (62) is arranged on the fin (2), adjacent to the guide hole (61), vertically arranged, and forms an angle with the fin (2); A side plate (63) connecting the guide plate (62) and the fin (2), wherein the side plate (63) is located at the upper and lower sides of the guide plate (62); The guide plate (62), the side plate (63) and the guide hole (61) are integrally stamped and formed by the fin (2).

6. The self-adaptable adjustable evaporator according to claim 5, characterized in that: The guide portion (6) partially overlaps with the raised portion (111) at a height position.

7. The self-adaptable adjustable evaporator according to claim 3, characterized in that: A reinforcing rib (53) is provided on the upper side of the baffle (5), and the reinforcing rib (53) is located in the middle of the baffle (5).

8. The self-adaptable adjustable evaporator according to claim 7, characterized in that: A first accommodating groove (71) is provided on the upper side of the adjustment hole (31), and a second accommodating groove (72) is provided on the bent portion (12); the positions of the first accommodating groove (71) and the second accommodating groove (72) correspond to each other, and the reinforcing rib (53) can be embedded in the first accommodating groove (71) and the second accommodating groove (72).

9. The self-adaptable adjustable evaporator according to claim 3, characterized in that: The adjustment plate (42) is provided with a support rod (8), the support rod (8) is located in the adjustment channel (3) and contacts the inner wall of the adjustment channel (3), the support rod (8) is arranged in an arc shape, the end connected to the adjustment plate (42) is high, and the end contacting the inner wall of the adjustment channel (3) is low.

10. The self-adaptable adjustable evaporator according to claim 3, characterized in that: The baffle (5) comprises: A base plate (541) is fixedly mounted on the adjustment plate (42); The deformation plate (542) is fixedly arranged on the base plate (541), the acceleration notch (51) is arranged on the deformation plate (542), and the deformation plate (542) is made of water-absorbing resin.

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