Quantitative flow-guiding ultralow-temperature air heat pump

Abstract

This invention relates to the field of ultra-low temperature air heat pump technology, and more particularly to a quantitative flow-directing ultra-low temperature air heat pump, comprising a heat pump housing; an evaporator disposed within the heat pump housing; a condenser disposed within the heat pump housing; and a quantitative flow-directing mechanism disposed within the heat pump housing, the quantitative flow-directing mechanism being located between the evaporator and the condenser and used for connecting the evaporator and the condenser. This invention improves upon existing equipment structures by adding a quantitative flow-directing mechanism between the evaporator and the condenser. The quantitative flow-directing mechanism ensures that the flow rate and volume of refrigerant entering the condenser remain constant, thus avoiding system performance degradation due to refrigerant flow fluctuations, and further preventing problems such as low efficiency, compressor overload, or unstable cooling effect in certain operating conditions.

Description

Technical Field

[0001] This invention relates to the field of ultra-low temperature air heat pump technology, and more particularly to an ultra-low temperature air heat pump with quantitative flow guidance. Background Technology

[0002] With economic development, people's demands for quality of life are increasing. Ultra-low temperature air heat pumps utilize the thermal energy in the air to produce heat, providing a large volume of hot water, high pressure, and constant temperature throughout the day to meet various hot and cold water needs, while consuming minimal energy. A compressor compresses the refrigerant, and the heated refrigerant passes through a condenser in a water tank to produce hot water. After the hot water exchange, the refrigerant returns to the compressor for the next cycle. During this process, heat from the air is absorbed by the evaporator and transferred into the refrigerant, which is then transferred into the water to produce hot water. Patent CN218467882U discloses a mini air heat pump, including a pump body with an inner cover fixedly connected to its exterior. A dust filter is fixedly connected to the front end of the inner cover, and an outer cover surrounds the inner cover. Two sets of connection ports are provided through one side of the pump body, with an inlet pipe and an outlet pipe on one side of each connection port. During operation, this mini air heat pump requires refrigerant to be injected from the evaporator into the condenser. However, in refrigeration systems, the refrigerant flow rate is typically regulated by throttling devices (such as capillary tubes or electronic expansion valves), which often fail to achieve precise flow control. Especially under complex operating conditions, such as ultra-low temperature environments or variable operating conditions, fluctuations in refrigerant flow rate lead to a decline in system performance. Thus, due to inaccurate refrigerant flow control, the refrigeration system may experience inefficiency, compressor overload, or unstable cooling performance under certain conditions. To address these issues, this invention proposes a quantitatively guided ultra-low temperature air heat pump. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides a quantitatively guided ultra-low temperature air heat pump, comprising:

[0004] Heat pump housing;

[0005] An evaporator is disposed within the heat pump housing;

[0006] A condenser is located inside the heat pump housing;

[0007] A metering flow guiding mechanism is provided inside the heat pump housing. The metering flow guiding mechanism is located between the evaporator and the condenser and is used to connect the evaporator and the condenser. The metering flow guiding mechanism is used to meterly guide the refrigerant from the evaporator to the condenser.

[0008] Optionally, the quantitative diversion mechanism includes:

[0009] A metering guide tube is disposed between the evaporator and the condenser, with its two ends fixedly connected to the outer walls of the evaporator and the condenser, respectively.

[0010] The liquid inlet pipe is connected at both ends to the evaporator and the metering guide pipe, respectively, and the liquid inlet pipe is used to connect the evaporator and the metering guide pipe;

[0011] The liquid outlet pipe is connected at both ends to the condenser and the metering guide pipe, respectively, and the liquid inlet pipe is used to connect the condenser and the metering guide pipe;

[0012] A separating component is disposed inside the quantitative guide tube, and the separating component is used to separate the inlet tube and the outlet tube;

[0013] An intermittent sealing component is disposed on the quantitative guide tube. The intermittent sealing component is used to seal the inlet pipe when a preset volume of refrigerant is stored in the quantitative guide tube, so as to realize the quantitative control of refrigerant.

[0014] Optionally, the separating component includes:

[0015] A partition plate is movably disposed inside the quantitative flow guide tube, and the partition plate is in contact with the inner sidewall of the quantitative flow guide tube.

[0016] The movable rod is fixedly mounted on the side wall of the partition plate;

[0017] A movable cylinder is fixedly connected to the outer wall of the condenser, and the movable cylinder is movably sleeved outside the movable rod;

[0018] A movable spring is wound around the outside of the movable rod, and the two ends of the movable spring are respectively fixedly connected to the side wall of the movable rod and the outer side wall of the movable cylinder.

[0019] Optionally, the intermittent plugging assembly includes:

[0020] A movable cavity is provided on the quantitative guide tube, and the movable cavity connects the inner cavity of the inlet tube and the inner cavity of the quantitative guide tube;

[0021] A sealing plate is movably disposed within the movable cavity;

[0022] An elastic rod is movably disposed within the movable cavity, and one end of the elastic rod located within the movable cavity is connected to the sealing plate.

[0023] An abutment plate is movably disposed inside the quantitative flow guide tube, and the abutment plate is connected to one end of the elastic rod located inside the quantitative flow guide tube.

[0024] Optionally, the intermittent plugging assembly further includes:

[0025] A first telescopic assembly, one end of which is fixedly connected to the side wall of the contact plate, and the other end of which is fixedly connected to the outer side wall of the condenser, the first telescopic assembly comprising:

[0026] The first telescopic rod is fixedly installed on the side wall of the contact plate;

[0027] The first telescopic cylinder is fixedly installed on the outer side wall of the condenser, and the first telescopic cylinder is movably sleeved outside the first telescopic rod;

[0028] A first telescopic spring is wound around the outside of the first telescopic rod, and the two ends of the first telescopic spring are respectively fixedly connected to the side wall of the first telescopic rod and the outer side wall of the first telescopic cylinder.

[0029] Optionally, it also includes a blowing mechanism disposed on the partition plate, the blowing mechanism pressurizing the metering guide tube to push all the pre-set volume of refrigerant stored in the metering guide tube into the condenser; the blowing mechanism includes:

[0030] A blower is mounted on the partition plate, and the partition plate has a plurality of blower holes, which are connected to the air outlet of the blower.

[0031] A push-button switch is located on the side wall of the partition plate, specifically on the side of the partition plate closest to the liquid outlet pipe.

[0032] Optionally, it also includes a backflow prevention mechanism to prevent refrigerant in the condenser from flowing back into the metering guide tube; the backflow prevention mechanism includes:

[0033] A check valve is provided at the inlet of the outlet pipe, and the check valve has a funnel-shaped cavity inside.

[0034] A sealing plug is disposed inside the horn-shaped cavity, and the sealing plug is disposed in contact with the cavity wall of the horn-shaped cavity. The sealing plug has a cap-shaped structure.

[0035] The second telescopic component is fixedly connected at one end to the sealing plug and at the other end to the liquid outlet pipe. The second telescopic component is used to guide and support the movement of the sealing plug and to provide a reset force for the reset movement of the sealing plug.

[0036] Optionally, the second telescopic component includes:

[0037] The second telescopic rod is fixedly installed on the lower end face of the sealing plug;

[0038] The second telescopic cylinder is fixedly installed on the liquid outlet pipe, and the second telescopic cylinder is movably sleeved outside the second telescopic rod;

[0039] The second telescopic spring is wound around the outside of the second telescopic rod, and the two ends of the second telescopic spring are respectively fixedly connected to the side wall of the second telescopic rod and the outer side wall of the second telescopic cylinder.

[0040] Optionally, it also includes a refrigerant temperature control mechanism disposed on the liquid outlet pipe, the refrigerant temperature control mechanism being used to adjust the temperature of the passing refrigerant, the refrigerant temperature control mechanism comprising:

[0041] The temperature control box is fixedly sleeved outside the liquid outlet pipe;

[0042] A temperature control tube is installed inside the temperature control box, and the temperature control tube is used for connecting the liquid outlet tube;

[0043] The refrigeration unit is fixedly mounted on the outer wall of the temperature control box;

[0044] The heater is fixedly mounted on the outer wall of the temperature control box;

[0045] The first heat transfer rod is fixedly inserted into the temperature control box. The first heat transfer rod is used to connect the heater and the temperature control tube. The first heat transfer rod plays the role of heat transfer.

[0046] The second heat transfer rod is fixedly inserted into the temperature control box. The second heat transfer rod is used to connect the refrigerator and the temperature control tube. The second heat transfer rod plays the role of heat transfer.

[0047] A temperature sensor is located on the inner wall of the temperature regulating tube and is used to monitor the temperature of the refrigerant in the temperature regulating tube in real time.

[0048] Optionally, the temperature control tube includes:

[0049] There are two transverse segments.

[0050] A vertical segment is provided between the two horizontal segments, and the number of vertical segments is set to a certain number;

[0051] An arc-shaped segment is provided between the two transverse segments, and the number of arc-shaped segments is set to a certain number;

[0052] The vertical segments and the arc segments are alternately connected, and two of the vertical segments are respectively connected to two of the horizontal segments.

[0053] The beneficial effects of this invention are as follows:

[0054] This invention improves the existing equipment structure by adding a quantitative flow guiding mechanism between the evaporator and the condenser. The quantitative flow guiding mechanism ensures that the flow rate and volume of refrigerant entering the condenser are constant. This avoids the system performance degradation caused by fluctuations in refrigerant flow and further avoids problems such as low efficiency, compressor overload, or unstable cooling effect in the refrigeration system under certain operating conditions. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of an embodiment of the ultra-low temperature air heat pump with quantitative flow guidance according to the present invention;

[0056] Figure 2 The ultra-low temperature air heat pump for quantitative flow guidance of the present invention Figure 1 Enlarged schematic diagram of structure A in the middle;

[0057] Figure 3 The ultra-low temperature air heat pump for quantitative flow guidance of the present invention Figure 2 Enlarged schematic diagram of the B-structure;

[0058] Figure 4 The ultra-low temperature air heat pump for quantitative flow guidance of the present invention is located at Figure 2 A schematic diagram of the blowing mechanism on the middle partition plate;

[0059] Figure 5 A schematic diagram of the backflow prevention mechanism of the ultra-low temperature air heat pump with quantitative flow guidance of the present invention, located at the inlet end of the outlet pipe;

[0060] Figure 6 A schematic diagram of the refrigerant temperature control mechanism of the ultra-low temperature air heat pump with quantitative flow guidance of the present invention, which is located on the liquid outlet pipe.

[0061] Figure 7 The ultra-low temperature air heat pump for quantitative flow guidance of the present invention Figure 6 A schematic diagram of the internal cross-sectional structure of the central temperature control box.

[0062] Explanation of reference numerals in the attached figures

[0063] Heat pump housing 1, evaporator 2, condenser 3, metering guide mechanism 4, metering guide pipe 41, inlet pipe 42, outlet pipe 43, partition assembly 44, partition plate 441, moving rod 442, moving cylinder 443, moving spring 444, intermittent sealing assembly 45, moving cavity 451, sealing plate 452, contact plate 453, first telescopic assembly 454, first telescopic rod 4541, first telescopic cylinder 4542, first telescopic spring 4543, elasticity 455 Rod, 5 blowing mechanism, 51 blower, 52 blower hole, 53 push-button switch, 6 backflow prevention mechanism, 61 backflow prevention pipe, 62 horn-shaped cavity, 63 sealing plug, 64 second telescopic assembly, 641 second telescopic rod, 642 second telescopic cylinder, 643 second telescopic spring, 7 refrigerant temperature control mechanism, 71 temperature control box, 72 refrigeration unit, 73 heater, 74 temperature regulating pipe, 75 first heat transfer rod, 76 second heat transfer rod, 77 temperature sensor. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but do not exclude other elements or objects.

[0065] To address the problems existing in the prior art, embodiments of the present invention provide a quantitatively guided ultra-low temperature air heat pump, such as... Figure 1 As shown, this embodiment adds a metering flow guiding mechanism 4 between the evaporator 2 and the condenser 3, which ensures that the refrigerant can flow meteringly from the evaporator 2 to the condenser 3.

[0066] Specifically, the quantitatively guided cryogenic air heat pump includes:

[0067] A heat pump housing 1; an evaporator 2 disposed within the heat pump housing 1; a condenser 3 disposed within the heat pump housing 1; a metering flow guiding mechanism 4 disposed within the heat pump housing 1, the metering flow guiding mechanism 4 being disposed between the evaporator 2 and the condenser 3, and used for connecting the evaporator 2 and the condenser 3, the metering flow guiding mechanism 4 being used for metering the refrigerant from the evaporator 2 to the condenser 3.

[0068] In one implementation, such as Figure 1 and Figure 2 As shown, the quantitative diversion mechanism 4 includes:

[0069] A metering guide tube 41 is disposed between the evaporator 2 and the condenser 3, with both ends of the metering guide tube 41 fixedly connected to the outer walls of the evaporator 2 and the condenser 3, respectively. An inlet pipe 42 is connected at both ends to the evaporator 2 and the metering guide tube 41, and the inlet pipe 42 is used to connect the evaporator 2 and the metering guide tube 41. An outlet pipe 43 is connected at both ends to the condenser 3 and the metering guide tube 41, and the inlet pipe 42 is used to connect the condenser 3 and the metering guide tube 41. A separating component 44 is disposed inside the metering guide tube 41, and the separating component 44 is used to separate the inlet pipe 42 and the outlet pipe 43. An intermittent sealing component 45 is disposed on the metering guide tube 41, and the intermittent sealing component 45 is used to seal the inlet pipe 42 when a preset volume of refrigerant is stored in the metering guide tube 41, thereby achieving metered control of the refrigerant.

[0070] Furthermore, such as Figure 2 As shown, the separating assembly 44 includes: a separating plate 441 movably disposed inside the metering guide tube 41, the separating plate 441 and the inner sidewall of the metering guide tube 41 being in contact; a moving rod 442 fixedly disposed on the sidewall of the separating plate 441; a moving cylinder 443 fixedly connected to the outer sidewall of the condenser 3, the moving cylinder 443 being movably sleeved outside the moving rod 442; and a moving spring 444 wound around the moving rod 442, the two ends of the moving spring 444 being fixedly connected to the sidewall of the moving rod 442 and the outer sidewall of the moving cylinder 443, respectively.

[0071] During operation, the evaporator 2 injects refrigerant into the metering guide tube 41 through the liquid inlet pipe 42 on the left side of the partition plate 441. As the amount of refrigerant increases (during this process, the refrigerant will not enter the condenser 3 through the liquid outlet pipe 43), it pushes the partition plate 441 to the right. When the right side wall of the partition plate 441 contacts the liquid outlet pipe 43, the partition plate 441 contacts the intermittent sealing component 45. As the partition plate 441 continues to move to the right, it pushes the intermittent sealing component 45 to seal the liquid inlet pipe 42, preventing refrigerant from continuing to enter the metering guide tube 41, thus ensuring that the refrigerant in the metering guide tube 41 reaches the preset volume. It is worth noting that at the moment the intermittent sealing component 45 completes the sealing of the liquid inlet pipe 42, the left side of the partition plate 441 is misaligned with the cavity of the liquid outlet pipe 43, allowing the refrigerant to enter the condenser 3 through the liquid outlet pipe 43.

[0072] Furthermore, such as Figure 3 As shown, the intermittent plugging assembly 45 includes:

[0073] A movable cavity 451 is formed on the quantitative guide tube 41, and the movable cavity 451 connects the inner cavity of the inlet tube 42 and the inner cavity of the quantitative guide tube 41; a sealing plate 452 is movably disposed in the movable cavity 451; an elastic rod 455 is movably disposed in the movable cavity 451, and one end of the elastic rod 455 located in the movable cavity 451 (which can be understood as the left end) is connected to the sealing plate 452; an abutment plate 453 is movably disposed in the quantitative guide tube 41, and the abutment plate 453 is connected to one end of the elastic rod 455 located in the quantitative guide tube 41 (which can be understood as the right end).

[0074] In this embodiment, the intermittent sealing component 45 has a simple and reasonable structural design, enabling it to move in conjunction with the partition plate 441 without requiring an additional power source. This ensures both high efficiency and reduced production costs. During operation, as the partition plate 441 moves to the right, it contacts the contact plate 453, causing the contact plate 453 to move to the right. This movement of the contact plate 453, in turn, pushes the sealing plate 452 to the left via the elastic rod 455. The leftward movement of the sealing plate 452 allows it to enter the inlet pipe 42 and seal its cavity, preventing refrigerant from continuing to be injected into the metering guide pipe 41, thus achieving a metered flow rate. It is important to note that the sealing process is completed when the left end of the sealing plate 452 contacts the left side wall of the inlet pipe 42.

[0075] To ensure that the movement of the contact plate 453 remains horizontal and that the contact plate 453 can return to its initial position when the contact force is lost, the present invention also proposes the following example, such as... Figure 3 As shown, the intermittent plugging assembly 45 further includes:

[0076] One end (which can be understood as the left end) of the first telescopic component 454 is fixedly connected to the side wall of the contact plate 453, and the other end (which can be understood as the right end) of the first telescopic component 454 is fixedly connected to the outer side wall of the condenser 3. The first telescopic component 454 in this invention is reasonably and simply designed, which can ensure the linkage performance of the equipment, and at the same time, can realize the guiding and limiting function of the contact plate 453, so that the contact plate 453 can only move in the horizontal direction. At the same time, when the contact plate 453 loses its resistance, it can provide a reset force for the reset process of the contact plate 453.

[0077] Specifically, the first telescopic assembly 454 includes: a first telescopic rod 4541 fixedly disposed on the side wall of the contact plate 453; a first telescopic cylinder 4542 fixedly disposed on the outer side wall of the condenser 3, the first telescopic cylinder 4542 being movably sleeved on the outside of the first telescopic rod 4541; and a first telescopic spring 4543 wound around the outside of the first telescopic rod 4541, the two ends of the first telescopic spring 4543 being fixedly connected to the side wall of the first telescopic rod 4541 and the outer side wall of the first telescopic cylinder 4542, respectively.

[0078] Preferably, the cavities of both the first telescopic rod 4541 and the first telescopic cylinder 4542 are configured as polygonal three-dimensional cylindrical structures, which provides better limiting and guiding effects. During operation, because the cavities of both the first telescopic rod 4541 and the first telescopic cylinder 4542 are polygonal three-dimensional cylindrical structures, the movement of the first telescopic rod 4541 within the first telescopic cylinder 4542 restricts the contact plate 453 to move only to the left or right in the horizontal direction. The presence of the first telescopic spring 4543 provides a resetting function. Specifically, when the first telescopic rod 4541 moves inward or outward from the first telescopic cylinder 4542, the first telescopic spring 4543 is compressed or stretched. Thus, when the compression or stretching force is lost, the action of the first telescopic spring 4543 causes the contact plate 453 to perform a resetting movement.

[0079] To ensure that the preset volume of refrigerant enters the condenser 3, thereby achieving a more precise metering effect, in one embodiment, such as... Figure 4 As shown, the quantitative flow ultra-low temperature air heat pump also includes a blowing mechanism 5 disposed on the partition plate 441. The blowing mechanism 5 pressurizes the quantitative flow tube 41 to push all the pre-set volume of refrigerant stored in the quantitative flow tube 41 into the condenser 3.

[0080] Specifically, the blowing mechanism 5 includes: a blower 51 disposed on the partition plate 441, the partition plate 441 having a plurality of blowing holes 52, the blowing holes 52 being connected to the air outlet of the blower 51; and a push-button switch 53 disposed on the side wall of the partition plate 441, the push-button switch 53 being disposed on the side of the partition plate 441 near the liquid outlet pipe 43.

[0081] The blowing mechanism 5 in this invention has a reasonable structural design and can be linked with the movement of the partition plate 441. During operation, as the intermittent sealing component 45 completes the sealing of the liquid inlet pipe 42, the push-button switch 53 is activated because it comes into contact with the outer wall of the condenser 3. The activation of the push-button switch 53 will energize the blower 51 and start working. The blower 51 will blow air into the metering guide pipe 41 through the blower hole 52, thereby pushing all the refrigerant in the metering guide pipe 41 into the condenser 3.

[0082] It is worth noting that when the blower 51 is working, it will generate a rightward thrust. This ensures that even if the amount of refrigerant in the metering guide tube 41 decreases, the current state of the partition plate 441 will not change under the action of the gas thrust. In other words, the blocking state of the intermittent blocking component 45, the state in which the liquid outlet pipe 43 is connected to the cavity of the metering guide tube 41 on the left side of the partition plate 441, and the energized state of the blower 51 will all remain unchanged.

[0083] After all the refrigerant in the metering guide tube 41 has entered the condenser 3, the power to the blower 51 is cut off. At this time, the partition plate 441 loses the rightward thrust of the gas. Then, under the action of the moving rod 442, the moving cylinder 443, the moving spring 444, and the first telescopic assembly 454, the equipment resets to the initial position, preparing for the next injection of refrigerant into the condenser 3.

[0084] To prevent refrigerant backflow into condenser 3, in one embodiment, such as Figure 5 As shown, the quantitative flow-guided ultra-low temperature air heat pump also includes a backflow prevention mechanism 6, which is used to prevent the refrigerant in the condenser 3 from flowing back into the quantitative flow-guided pipe 41.

[0085] Specifically, the backflow prevention mechanism 6 includes:

[0086] A check valve 61 is located at the inlet of the outlet pipe 43, and a flared cavity 62 is present within the check valve 61. A sealing plug 63 is located within the flared cavity 62, and the sealing plug 63 is disposed in contact with the cavity wall of the flared cavity 62. The sealing plug 63 has a cap-shaped structure. One end (which can be understood as the upper end) of the second telescopic component 64 is fixedly connected to the sealing plug 63, and the other end (which can be understood as the lower end) of the second telescopic component 64 is fixedly connected to the outlet pipe 43. The second telescopic component 64 serves to guide and support the movement of the sealing plug 63, and to provide a restoring force for the reset movement of the sealing plug 63.

[0087] Furthermore, the second telescopic assembly 64 includes: a second telescopic rod 641 fixedly disposed on the lower end face of the sealing plug 63; a second telescopic cylinder 642 fixedly disposed on the liquid outlet pipe 43, the second telescopic cylinder 642 being movably sleeved outside the second telescopic rod 641; and a second telescopic spring 643 wound around the second telescopic rod 641, the two ends of the second telescopic spring 643 being fixedly connected to the side wall of the second telescopic rod 641 and the outer side wall of the second telescopic cylinder 642, respectively.

[0088] In order to enable the refrigerant to function normally at extremely low temperatures, in one embodiment, such as Figure 6 and Figure 7 As shown, the quantitative flow-guiding ultra-low temperature air heat pump also includes a refrigerant temperature control mechanism 7 disposed on the liquid outlet pipe 43. The refrigerant temperature control mechanism 7 is used to adjust the temperature of the passing refrigerant. The configuration of this embodiment can preheat or precool the refrigerant to ensure that the system operates normally in an ultra-low temperature environment.

[0089] Specifically, the refrigerant temperature control mechanism 7 includes: a temperature control box 71 fixedly sleeved outside the liquid outlet pipe 43; a temperature regulating pipe 74 disposed inside the temperature control box 71, the temperature regulating pipe 74 being used for connecting the liquid outlet pipe 43; a refrigeration unit 72 fixedly disposed on the outer wall of the temperature control box 71; a heater 73 fixedly disposed on the outer wall of the temperature control box 71; a first heat transfer rod 75 fixedly inserted into the temperature control box 71, the first heat transfer rod 75 being used for connecting the heater 73 and the temperature regulating pipe 74, the first heat transfer rod 75 serving the function of heat transfer; a second heat transfer rod 76 fixedly inserted into the temperature control box 71, the second heat transfer rod 76 being used for connecting the refrigeration unit 72 and the temperature regulating pipe 74, the second heat transfer rod 76 serving the function of heat transfer; and a temperature sensor 77 disposed on the inner wall of the temperature regulating pipe 74, used for real-time temperature monitoring of the refrigerant inside the temperature regulating pipe 74.

[0090] It is worth noting that the temperature control tube 74 is made of a thermally conductive material; when the refrigerator 72 and the heater 73 are started, heat can be transferred to the temperature control tube 74 through the second heat transfer rod 76 and the first heat transfer rod 75, respectively.

[0091] In this embodiment, the refrigerant temperature control mechanism 7 has a reasonable structural design, enabling it to preheat or precool the refrigerant. Furthermore, the invention includes a temperature sensor 77, which can sense the refrigerant temperature in real time, ensuring that the refrigerant temperature remains constant.

[0092] Furthermore, such as Figure 7As shown, the temperature control tube 74 includes: two horizontal segments; a number of vertical segments disposed between the two horizontal segments; and a number of arc-shaped segments disposed between the two horizontal segments; wherein the number of vertical segments and the number of arc-shaped segments are alternately connected, and two of the vertical segments are respectively connected to two of the horizontal segments.

[0093] In this embodiment, the temperature regulating tube 74 has a reasonable structural design. By setting two horizontal sections, several vertical sections and several arc-shaped sections, the movement path of the refrigerant in the temperature regulating tube 74 can be effectively extended. This can increase the temperature regulation time of the refrigerant, so that the temperature of the refrigerant coming out of the temperature regulating tube 74 is more constant.

[0094] While embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of the present invention. Furthermore, the present invention described herein may have other embodiments and can be implemented or carried out in various ways.

Claims

1. A quantitative flow-directing ultra-low temperature air heat pump, characterized in that, include: Heat pump housing (1); An evaporator (2) is disposed inside the heat pump housing (1); A condenser (3) is disposed inside the heat pump housing (1); A quantitative flow guiding mechanism (4) is provided inside the heat pump housing (1). The quantitative flow guiding mechanism (4) is located between the evaporator (2) and the condenser (3) and is used to connect the evaporator (2) and the condenser (3). The quantitative flow guiding mechanism (4) is used to guide the refrigerant quantitatively from the evaporator (2) to the condenser (3). The quantitative flow guiding mechanism (4) includes: A metering guide tube (41) is provided between the evaporator (2) and the condenser (3), and the two ends of the metering guide tube (41) are respectively fixedly connected to the outer walls of the evaporator (2) and the condenser (3); The liquid inlet pipe (42) is connected at both ends to the evaporator (2) and the metering guide pipe (41) respectively. The liquid inlet pipe (42) is used to connect the evaporator (2) and the metering guide pipe (41). The liquid outlet pipe (43) is connected at both ends to the condenser (3) and the metering guide pipe (41) respectively, and the liquid inlet pipe (42) is used to connect the condenser (3) and the metering guide pipe (41); A separation component (44) is disposed inside the quantitative guide tube (41), and the separation component (44) is used to separate the inlet tube (42) and the outlet tube (43); Intermittent sealing component (45) is provided on the quantitative guide tube (41). The intermittent sealing component (45) is used to seal the liquid inlet tube (42) when a preset volume of refrigerant is stored in the quantitative guide tube (41) so as to realize the quantitative control of refrigerant. The separating component (44) includes: A partition plate (441) is movably disposed inside the quantitative flow guide tube (41), and the partition plate (441) and the inner sidewall of the quantitative flow guide tube (41) are both abutted. The movable rod (442) is fixedly mounted on the side wall of the partition plate (441); The movable cylinder (443) is fixedly connected to the outer wall of the condenser (3), and the movable cylinder (443) is movably sleeved outside the movable rod (442); A movable spring (444) is wound around the movable rod (442), and the two ends of the movable spring (444) are respectively fixedly connected to the side wall of the movable rod (442) and the outer side wall of the movable cylinder (443); The intermittent plugging assembly (45) includes: A movable cavity (451) is provided on the quantitative guide tube (41), and the movable cavity (451) connects the inner cavity of the inlet tube (42) and the inner cavity of the quantitative guide tube (41); The sealing plate (452) is movably disposed within the movable cavity (451); An elastic rod (455) is movably disposed within the movable cavity (451), and one end of the elastic rod (455) located within the movable cavity (451) is connected to the sealing plate (452). A contact plate (453) is movably disposed inside the quantitative guide tube (41), and the contact plate (453) is connected to one end of the elastic rod (455) located inside the quantitative guide tube (41).

2. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 1, characterized in that, The intermittent plugging assembly (45) further includes: A first telescopic assembly (454) is fixedly connected at one end to the side wall of the contact plate (453) and at the other end to the outer side wall of the condenser (3). The first telescopic assembly (454) includes: The first telescopic rod (4541) is fixedly installed on the side wall of the contact plate (453); The first telescopic cylinder (4542) is fixedly installed on the outer wall of the condenser (3), and the first telescopic cylinder (4542) is movably sleeved outside the first telescopic rod (4541); The first telescopic spring (4543) is wound around the outside of the first telescopic rod (4541), and the two ends of the first telescopic spring (4543) are respectively fixedly connected to the side wall of the first telescopic rod (4541) and the outer side wall of the first telescopic cylinder (4542).

3. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 1, characterized in that, It also includes a blowing mechanism (5) disposed on the partition plate (441), the blowing mechanism (5) pressurizing the metering guide tube (41) to push all the pre-set volume of refrigerant stored in the metering guide tube (41) into the condenser (3); the blowing mechanism (5) includes: A blower (51) is provided on the partition plate (441), and the partition plate (441) has a plurality of blower holes (52), which are connected to the air outlet of the blower (51). A push-button switch (53) is provided on the side wall of the partition plate (441), and the push-button switch (53) is provided on the side of the partition plate (441) near the liquid outlet pipe (43).

4. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 1, characterized in that, It also includes a backflow prevention mechanism (6) for preventing refrigerant in the condenser (3) from flowing back into the metering guide tube (41); The backflow prevention mechanism (6) includes: A check valve (61) is provided at the inlet of the outlet pipe (43), and a flared cavity (62) exists inside the check valve (61). A sealing plug (63) is disposed inside the horn-shaped cavity (62). The sealing plug (63) is disposed in contact with the cavity wall of the horn-shaped cavity (62). The sealing plug (63) has a cap-shaped structure. The second telescopic component (64) is fixedly connected at one end to the sealing plug (63) and at the other end to the liquid outlet pipe (43). The second telescopic component (64) is used to guide and support the movement of the sealing plug (63) and to provide a reset force for the reset movement of the sealing plug (63).

5. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 4, characterized in that, The second telescopic component (64) includes: The second telescopic rod (641) is fixedly installed on the lower end face of the sealing plug (63); The second telescopic cylinder (642) is fixedly installed on the liquid outlet pipe (43), and the second telescopic cylinder (642) is movably sleeved outside the second telescopic rod (641); The second telescopic spring (643) is wound around the outside of the second telescopic rod (641), and the two ends of the second telescopic spring (643) are respectively fixedly connected to the side wall of the second telescopic rod (641) and the outer side wall of the second telescopic cylinder (642).

6. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 1, characterized in that, It also includes a refrigerant temperature control mechanism (7) disposed on the liquid outlet pipe (43), the refrigerant temperature control mechanism (7) being used to adjust the temperature of the passing refrigerant, the refrigerant temperature control mechanism (7) comprising: The temperature control box (71) is fixedly sleeved outside the liquid outlet pipe (43); Temperature control tube (74) is located inside the temperature control box (71), and the temperature control tube (74) is used for connecting the liquid outlet tube (43); The refrigeration unit (72) is fixedly installed on the outer wall of the temperature control box (71); The heater (73) is fixedly installed on the outer wall of the temperature control box (71); The first heat transfer rod (75) is fixedly inserted into the temperature control box (71). The first heat transfer rod (75) is used to connect the heater (73) and the temperature control tube (74). The first heat transfer rod (75) plays the role of heat transfer. The second heat transfer rod (76) is fixedly inserted into the temperature control box (71). The second heat transfer rod (76) is used to connect the refrigerator (72) and the temperature control tube (74). The second heat transfer rod (76) plays the role of heat transfer. A temperature sensor (77) is located on the inner wall of the temperature regulating tube (74) and is used to monitor the temperature of the refrigerant in the temperature regulating tube (74) in real time.

7. The ultra-low temperature air heat pump with quantitative flow guidance according to claim 6, characterized in that, The temperature control tube (74) includes: There are two transverse segments. A vertical segment is provided between two of the horizontal segments, and the number of vertical segments is set to a certain number; An arc-shaped segment is provided between two of the transverse segments, and the number of the arc-shaped segments is set to a certain number; The vertical segments and the arc segments are alternately connected, and two of the vertical segments are respectively connected to two of the horizontal segments.

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