Auxiliary heating device and air conditioning unit thereof

Abstract

The auxiliary heating device comprises a heating and heat exchanging assembly, an over-temperature protection module, a temperature sensing module and a main control board, the over-temperature protection module is connected with the heating and heat exchanging assembly, the temperature sensing module is arranged on the heating and heat exchanging assembly and used for obtaining the real-time temperature of the heating and heat exchanging assembly, and the main control board is connected with the over-temperature protection module. According to the auxiliary heating device, the real-time temperature of the heating heat exchange assembly of the auxiliary heating device is monitored, when the temperature of the heating heat exchange assembly is higher than a temperature threshold value, the main control board controls the heating heat exchange assembly to stop, and the heating heat exchange assembly is prevented from being overheated; and the heating and heat exchange assembly is overheated due to leakage of media such as secondary refrigerants or refrigerants injected into the loop, dry burning of the heating and heat exchange assembly is avoided, the safety performance of the auxiliary heating device is improved, and the service life of the auxiliary heating device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to an auxiliary heat device and an air conditioning unit thereof. Background Art

[0002] In the refrigeration industry, many large electronic equipment require commercial air conditioning units to meet the needs of equipment cooling and heating when working. In terms of heating, electric heating equipment is generally required to provide heat to ensure that in cold working conditions, the equipment can use electric heating to provide additional heat to meet working conditions.

[0003] The types of heaters currently on the market include liquid electric heating. Liquid electric heating is generally connected to a pipeline loop, and a medium such as a coolant or refrigerant is added to the loop. Liquid electric heating mainly heats the liquid medium inside to meet the heating needs of the air conditioning unit. In some electronic equipment with high heating needs, in order to maintain the normal operation of the equipment, the heating temperature of the liquid electric heating is high and the heating time is long, resulting in overheating of the liquid electric heating. In addition, when the medium such as the coolant or refrigerant added to the loop leaks during the heating process, the temperature of the liquid electric heating will also be higher than the normal value, resulting in long-term dry burning. Utility Model Content

[0004] The utility model aims to provide an auxiliary heating device and an air conditioning unit thereof, aiming to solve the technical problem of dry burning caused by overheating of a liquid electric heater or leakage of a medium in the related art.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the utility model provides an auxiliary heating device, which is connected to a heat exchange component of an air-conditioning unit, and the auxiliary heating device includes a heating heat exchange component, an over-temperature protection module, a temperature sensing module and a main control board, the over-temperature protection module is connected to the heating heat exchange component; the temperature sensing module is arranged on the heating heat exchange component; the main control board is connected to the temperature sensing module and the over-temperature protection module to shut down the heating heat exchange component when the temperature of the heating heat exchange component reaches a temperature threshold.

[0006] In some embodiments, the auxiliary heating device also includes a frame and an electrical box, the heating and heat exchange component and the over-temperature protection module are arranged in the frame, the electrical box is arranged on the top of the frame, and the main control board is arranged in the electrical box.

[0007] In some embodiments, the frame includes a top plate and a bottom plate spaced apart from each other and a plurality of side plates connected between the top plate and the bottom plate, a column is provided between two adjacent side plates, both ends of the column are respectively connected to the top plate and the bottom plate, and cross beams are provided between the top plate and the side plates and between the bottom plate and the side plates.

[0008] In some embodiments, a first cooling fan is disposed in the electrical box, and an air outlet of the first cooling fan is directed toward the main control board; and / or the main control board is disposed on an inner wall of the electrical box facing the frame, a radiator is disposed in the frame at a position relative to the main control board, a second cooling fan is disposed on the radiator, a cooling honeycomb hole is provided in the frame at a position between the main control board and the radiator, and an air outlet is provided in the box at a position relative to the air outlet of the second cooling fan.

[0009] In some embodiments, the wiring harness of the temperature sensing module is routed along the crossbeam between the top plate and the side plate to be connected to the main control board; and / or,

[0010] The heating and heat exchange component has a first lead-out wiring harness, which is connected to the over-temperature protection module via the side wall of the frame, and the over-temperature protection module has a second lead-out wiring harness. A first circuit breaker is also provided in the electrical box, and the inner wall of the frame has a wire groove. The second lead-out wiring harness is connected to the first circuit breaker via the wire groove, and the first circuit breaker is connected to the main control board.

[0011] In some embodiments, the auxiliary heating device also includes an adapter box, a second circuit breaker located in the adapter box, and a sub-control board located in the electrical box, the sub-control board is connected to the main control board, the adapter box is arranged on the side wall of the frame, the external power supply is connected to the second circuit breaker, and the second circuit breaker is connected to the sub-control board.

[0012] In some embodiments, the auxiliary heating device further includes a display panel component disposed on the electrical box, and the display panel component is connected to the auxiliary control panel.

[0013] In some embodiments, at least three universal wheels are disposed at the bottom of the frame.

[0014] In some embodiments, there are at least two heating and heat exchanging components, and the two heating and heat exchanging components are connected in parallel or in series.

[0015] According to another aspect of the present application, an embodiment of the utility model further provides an air-conditioning unit, which includes the auxiliary heating device as described above.

[0016] Compared with the prior art, the auxiliary heating device of the utility model has at least the following beneficial effects:

[0017] The utility model embodiment discloses an auxiliary heat device, which is connected to the heat exchange component of the air-conditioning unit, and the auxiliary heat device comprises a heating heat exchange component, an over-temperature protection module, a temperature sensing module and a main control board. The over-temperature protection module is connected to the heating heat exchange component, and the temperature sensing module is arranged on the heating heat exchange component. The temperature sensing module is used to obtain the real-time temperature of the heating heat exchange component. The main control board is connected to the temperature sensing module and the over-temperature protection module. The real-time temperature of the heating heat exchange component obtained by the temperature sensing module is fed back to the main control board. When the real-time temperature of the heating heat exchange component reaches a temperature threshold, the main control board controls the heating heat exchange component to stop working. Therefore, the utility model monitors the real-time temperature of the heating heat exchange component of the auxiliary heat device. When the temperature of the heating heat exchange component is higher than the temperature threshold, the main control board controls the heating heat exchange component to stop working, so as to prevent the heating heat exchange component from overheating, and the heating heat exchange component from overheating due to leakage of medium such as refrigerant or refrigerant filled in the circuit, so as to avoid dry burning of the heating heat exchange component, improve the safety performance of the auxiliary heat device, and effectively extend the service life of the auxiliary heat device.

[0018] On the other hand, the air-conditioning unit provided by the present invention is manufactured based on the above-mentioned auxiliary heating device. Its beneficial effects refer to the beneficial effects of the above-mentioned auxiliary heating device, which will not be described in detail here.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of the auxiliary heating device provided in the embodiment of the utility model;

[0022] Figure 2 A cross-sectional view of an auxiliary heating device provided in an embodiment of the utility model;

[0023] Figure 3 An axonometric diagram of an auxiliary heating device provided in an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the exploded structure of the auxiliary heating device provided in an embodiment of the utility model;

[0025] Figure 5A schematic diagram of the structure of a transfer box for an auxiliary heating device provided in an embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the three-dimensional structure of the adapter box of the auxiliary heating device provided in the embodiment of the utility model;

[0027] Figure 7 A temperature control diagram of the auxiliary heating device provided in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1. Heating and heat exchange components;

[0030] 2. Over-temperature protection module;

[0031] 3. Main control board;

[0032] 4. Box body; 41. Top plate; 42. Bottom plate; 421. Air outlet; 43. Side plate; 44. Column; 45. Crossbeam;

[0033] 5. Electrical box; 51. Cover plate;

[0034] 6. The first cooling fan;

[0035] 7. Radiator;

[0036] 8. Second cooling fan;

[0037] 9. First circuit breaker;

[0038] 10. Adapter box;

[0039] 11. Second circuit breaker;

[0040] 12. Sub-control panel;

[0041] 13. Display panel components;

[0042] 14. Universal wheel. DETAILED DESCRIPTION

[0043] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0044] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Example 1

[0047] like Figure 1-7 As shown, an embodiment of the utility model provides an auxiliary heating device, which is connected to a heat exchange component of an air-conditioning unit, and the auxiliary heating device includes a heating heat exchange component 1, an over-temperature protection module 2, a temperature sensing module and a main control board 3, the over-temperature protection module 2 is connected to the heating heat exchange component 1; the temperature sensing module is arranged on the heating heat exchange component 1; the main control board 3 is connected to the temperature sensing module and the over-temperature protection module 2, so as to shut down the heating heat exchange component 1 when the temperature of the heating heat exchange component 1 reaches a temperature threshold.

[0048] In this embodiment, the auxiliary heat device is connected to the heat exchange component of the air-conditioning unit, and the auxiliary heat device includes a heating heat exchange component 1, an over-temperature protection module 2, a temperature sensing module and a main control board 3. The over-temperature protection module 2 is connected to the heating heat exchange component 1, and the temperature sensing module is arranged on the heating heat exchange component 1. The temperature sensing module is used to obtain the real-time temperature of the heating heat exchange component 1. The main control board 3 is connected to the temperature sensing module and the over-temperature protection module 2. The real-time temperature of the heating heat exchange component 1 obtained by the temperature sensing module is fed back to the main control board 3. When the real-time temperature of the heating heat exchange component 1 reaches the temperature threshold, the main control board 3 controls the heating heat exchange component 1 to stop working. Therefore, in this embodiment, by monitoring the real-time temperature of the heating heat exchange component 1 of the auxiliary heat device, when the temperature of the heating heat exchange component 1 is higher than the temperature threshold, the main control board 3 controls the heating heat exchange component 1 to stop, so as to prevent the heating heat exchange component 1 from overheating, and the heating heat exchange component 1 from overheating due to leakage of the medium such as the refrigerant or the refrigerant in the circuit, so as to avoid dry burning of the heating heat exchange component 1, improve the safety performance of the auxiliary heat device, and effectively extend the service life of the auxiliary heat device.

[0049] The temperature threshold can be 90°C, that is, when the real-time temperature of the heating and heat exchange component 1 is greater than or equal to 90°C, the main control board 3 controls the heating and heat exchange component 1 to stop; the normal working temperature of the auxiliary heating device is generally 80°C. After the heating and heat exchange component 1 stops for a period of time, when the real-time temperature of the heating and heat exchange component 1 drops to the normal working temperature of 80°C, the main control board 3 controls the heating and heat exchange component 1 to start working.

[0050] When the over-temperature protection module 2 works too frequently, the medium such as the coolant or refrigerant filled in the loop can be tested to determine whether there is a leak in order to eliminate safety hazards.

[0051] The heating and heat exchange component 1 generally includes a heater and a pipe for exchanging heat with the heater, and a medium such as a coolant or a refrigerant is filled in the loop of the pipe.

[0052] In some embodiments, the auxiliary heating device also includes a box body 4 and an electrical box 5, the heating and heat exchange component 1 and the over-temperature protection module 2 are arranged in the box body 4, the electrical box 5 is arranged on the top of the box body 4, and the main control board 3 is arranged in the electrical box 5.

[0053] In this embodiment, the auxiliary heating device also includes a box body 4 and an electrical box 5. The heating and heat exchange component 1 and the over-temperature protection module 2 are arranged in the box body 4. The electrical box 5 is arranged on the top of the box body 4. The main control board 3 is arranged in the electrical box 5. The auxiliary heating device is divided into an electric control area component and an electric heating area by the box body 4 and the electrical box 5, which facilitates the overall layout of the auxiliary heating device.

[0054] In some embodiments, the box body 4 includes a top plate 41 and a bottom plate 42 spaced apart in an upper and lower manner and a plurality of side plates 43 connected between the top plate 41 and the bottom plate 42, a column 44 is arranged between two adjacent side plates 43, and the two ends of the column 44 are respectively connected to the top plate 41 and the bottom plate 42, and a cross beam 45 is arranged between the top plate 41 and the side plate 43 and between the bottom plate 42 and the side plate 43.

[0055] Electric heating system components are generally heavy and there is a risk of damage by falling. In this embodiment, a column 44 is provided between two adjacent side panels 43, and cross beams 45 are provided between the top panel 41 and the side panel 43 and between the bottom panel 42 and the side panel 43 to form a frame structure, thereby ensuring the reliability of the box body 4 structure.

[0056] In some embodiments, a first heat dissipation fan 6 is disposed in the electrical box 5 , and an air outlet of the first heat dissipation fan 6 faces the main control board 3 .

[0057] In this embodiment, the air outlet of the first heat dissipation fan 6 is directed toward the main control board 3 , which can accelerate the heat dissipation of the main control board 3 and ensure the working stability of the main control board 3 .

[0058] In some embodiments, the main control board 3 is arranged on the inner wall of the electrical box 5 facing the box body 4, a radiator 7 is arranged in the box body 4 at a position relative to the main control board 3, a second cooling fan 8 is arranged on the radiator 7, a cooling honeycomb hole is opened in the box body 4 at a position between the main control board 3 and the radiator 7, and an air outlet 421 is arranged at a position relative to the box body 4 and the air outlet of the second cooling fan 8.

[0059] In this embodiment, a heat dissipation honeycomb hole is opened in the box body 4 between the main control board 3 and the radiator 7 to facilitate the heat dissipation of the main control board 3. The radiator 7 is arranged in the box body 4 at a position opposite to the main control board 3. The radiator 7 is used to blow out the heat on the radiator 7 through the air outlet 421, thereby accelerating the heat dissipation of the main control board 3 and ensuring the working stability of the main control board 3.

[0060] In some embodiments, the wiring harness of the temperature sensing module is routed along the crossbeam 45 between the top plate 41 and the side plate 43 to connect with the main control board 3. This embodiment uses concealed wiring to be beautiful, firm and stable, with a simple appearance while solving the problem of pulling damage caused by movement of the wiring harness, reasonable wiring, improved wiring efficiency and convenient for later maintenance, and reasonable wiring to avoid electrical safety problems.

[0061] In some embodiments, the heating and heat exchange component 1 has a first lead-out wiring harness, which is connected to the over-temperature protection module 2 via the side wall of the box body 4. The over-temperature protection module 2 has a second lead-out wiring harness. A first circuit breaker 9 is also provided in the electrical box 5. The inner wall of the box body 4 has a wire groove, and the second lead-out wiring harness is connected to the first circuit breaker 9 via the wire groove. The first circuit breaker 9 is connected to the main control board 3. This embodiment uses concealed wiring that is beautiful, firm and stable. While having a simple appearance, it solves the problem of pulling damage caused by movement of the wiring harness. Reasonable wiring improves wiring efficiency and facilitates later maintenance. Reasonable wiring can avoid electrical safety problems.

[0062] In some embodiments, the auxiliary heating device also includes an adapter box 10, a second circuit breaker 11 located in the adapter box 10, and a sub-control board 12 located in the electrical box 5, the sub-control board 12 is connected to the main control board 3, the adapter box 10 is arranged on the side wall of the box body 4, the external power supply is connected to the second circuit breaker 11, and the second circuit breaker 11 is connected to the sub-control board 12.

[0063] In this embodiment, the auxiliary heating device further includes an adapter box 10, a second circuit breaker 11 located in the adapter box 10, and a sub-control board 12 located in the electrical box 5. The external power supply is connected to the second circuit breaker 11, and the second circuit breaker 11 is connected to the sub-control board 12. The adapter box saves space and is more convenient for wiring. The layout is reasonable, which solves the hidden danger of strong and weak electricity interfering with each other in the electric control area.

[0064] The second circuit breaker 11 in the adapter box 10 and the first circuit breaker 9 in the electrical box 5 form a double layer of protection to ensure the safety of electrical operation.

[0065] Specifically, the external power supply may include high-volt AC power and low-volt AC power. The adapter box 10 has a high-voltage power inlet and a low-voltage power inlet. The high-volt AC power lead enters from the high-voltage power inlet and connects to the second circuit breaker 11. The low-volt AC power lead enters from the low-voltage power inlet and connects to the second circuit breaker 11.

[0066] In some embodiments, the auxiliary heating device further includes a display panel component 13 disposed on the electrical box 5 , and the display panel component 13 is connected to the auxiliary control panel 12 .

[0067] In this embodiment, since the display panel component 13 is connected to the auxiliary control panel 12, and the auxiliary control panel 12 is connected to the main control panel 3, and the main control panel 3 is connected to the temperature sensing module, the display panel component 13 is used to display the real-time temperature of the heating heat exchange component 1 obtained by the temperature sensing module, and the set temperature threshold can be input through the display panel component 13. The percentage of the output power of the heating heat exchange component 1 can also be changed by adjusting the display panel component instruction.

[0068] The electrical box 5 comprises a cover plate 51 . The display panel component 13 is arranged in the electrical box 5 . A display hole of the display panel component 13 is formed in the cover plate 51 .

[0069] Due to the limitations of the piping routes of the entire system, components such as auxiliary heating devices often need to be moved with the air-conditioning unit.

[0070] In some embodiments, at least three universal wheels 14 are provided at the bottom of the box body 4, so that the auxiliary heating device and other components can move with the air-conditioning unit, thereby improving the flexibility of the movement of the auxiliary heating device.

[0071] In some embodiments, there are at least two heating and heat exchanging components 1, and the two heating and heat exchanging components 1 are connected in parallel or in series.

[0072] The heating and heat exchange component 1 generally includes a heater and a pipe for exchanging heat with the heater, and a medium such as a coolant or a refrigerant is filled in the loop of the pipe.

[0073] The internal pipe connection mode of the heating and heat exchange component 1 is parallel or series connection. The parallel connection mode can achieve the effect of rapid charging and heating of the liquid.

[0074] All pipelines of the auxiliary heating device are connected by pipe joints for easy disassembly.

[0075] There are pipeline brackets at the pipeline inlet and outlet to support the pipeline to prevent deformation.

[0076] The pipe of the heating heat exchange component 1 that exchanges heat with the heater is filled with a refrigerant, and the refrigerant enters the air-conditioning unit from the inlet pipe of the pipe. After the refrigerant circulates inside the electric heater, it flows back to the air-conditioning unit through the pump component.

[0077] Example 2

[0078] The embodiment of the utility model further provides an air-conditioning unit, which includes the auxiliary heating device of embodiment 1.

[0079] In summary, those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0080] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An auxiliary heat device connected to a heat exchange component of an air conditioning unit, characterized in that: The auxiliary heat device includes a heating and heat exchanging component, an over-temperature protection module, a temperature sensing module and a main control board. The over-temperature protection module is connected to the heating and heat exchanging component; the temperature sensing module is arranged on the heating and heat exchanging component; the main control board is connected to the temperature sensing module and the over-temperature protection module to shut down the heating and heat exchanging component when the temperature of the heating and heat exchanging component reaches a temperature threshold.

2. The auxiliary heating device according to claim 1, characterized in that: The auxiliary heat device also includes a box body and an electrical box. The heating and heat exchange component and the over-temperature protection module are arranged in the box body. The electrical box is arranged on the top of the box body. The main control board is arranged in the electrical box.

3. The auxiliary heating device according to claim 2, characterized in that: The box body includes a top plate and a bottom plate spaced apart from each other and a plurality of side plates connected between the top plate and the bottom plate, a column is arranged between two adjacent side plates, two ends of the column are respectively connected to the top plate and the bottom plate, and cross beams are arranged between the top plate and the side plates and between the bottom plate and the side plates.

4. The auxiliary heating device according to claim 2, characterized in that: A first heat dissipation fan is arranged in the electrical box, and an air outlet of the first heat dissipation fan faces the main control board; And / or the main control board is arranged on the inner wall of the electrical box facing the box body, a radiator is arranged in the box body at a position relative to the main control board, a second cooling fan is arranged on the radiator, a cooling honeycomb hole is opened in the box body at a position between the main control board and the radiator, and an air outlet is arranged in the box body at a position relative to the air outlet of the second cooling fan.

5. The auxiliary heating device according to claim 3, characterized in that: The wiring harness of the temperature sensing module is routed along the crossbeam between the top plate and the side plate to be connected to the main control board; And / or the heating and heat exchange component has a first lead-out wiring harness, the first lead-out wiring harness is connected to the over-temperature protection module via the side wall of the box, the over-temperature protection module has a second lead-out wiring harness, a first circuit breaker is also provided in the electrical box, the inner wall of the box has a wire groove, the second lead-out wiring harness is connected to the first circuit breaker via the wire groove, and the first circuit breaker is connected to the main control board.

6. The auxiliary heating device according to claim 3, characterized in that: The auxiliary heating device also includes an adapter box, a second circuit breaker located in the adapter box, and a sub-control board located in the electrical box, the sub-control board is connected to the main control board, the adapter box is arranged on the side wall of the box body, the external power supply is connected to the second circuit breaker, and the second circuit breaker is connected to the sub-control board.

7. The auxiliary heating device according to claim 6, characterized in that: The auxiliary heating device also includes a display panel component arranged on the electrical box, and the display panel component is connected to the auxiliary control panel.

8. The auxiliary heating device according to claim 2, characterized in that: At least three universal wheels are arranged at the bottom of the box.

9. The auxiliary heating device according to claim 1, characterized in that: There are at least two heating and heat exchanging components, and at least two of the heating and heat exchanging components are connected in parallel or in series.

10. An air conditioning unit, characterized in that: The air conditioning unit comprises the auxiliary heating device according to any one of claims 1-9.

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