Electric control device, refrigeration equipment with electric control device and heat pump system with electric control device

Abstract

The utility model discloses an electric control device and refrigeration equipment and a heat pump system with the same, the electric control device comprises a circuit board and an inversion module, a PFC module, an energy storage module and an inductance module which are installed on the circuit board, and the circuit board is provided with a first area, a second area and a third area; the inverter module is located in a first area, the PFC module and the energy storage module are located in a second area, and the inductor module is located in a third area. According to the electric control device provided by the embodiment of the utility model, signal crosstalk among the inversion module, the PFC module, the energy storage module and the inductance module can be reduced, so that the electric control device has better stability, and the performance of the electric control device can be improved. In addition, optimal arrangement of the position of the radiator or the radiating element can be facilitated, and the cost of the radiator and the radiating element can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances, in particular to an electric control device and a refrigeration device and a heat pump system having the same. Background Art

[0002] At present, in the product design of inverters and motor drivers, high power density circuit boards and high integration have become the technical trend. However, as the power density of circuit boards increases, the signal anti-interference ability and signal integrity requirements of circuit boards become higher. In addition, the heating of circuit boards / components has become a technical bottleneck. Due to the different temperature resistance levels of different components, heat conduction causes the overall components to heat up higher. The heat dissipation problem is often solved by adding thermal devices or increasing the selection of components, but this brings about an increase in costs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an electric control device, which can reduce crosstalk and has good stability.

[0004] The electric control device according to an embodiment of the utility model includes a circuit board and an inverter module, a PFC module, an energy storage module and an inductor module installed on the circuit board, the circuit board has a first area, a second area and a third area; the inverter module is located in the first area, the PFC module and the energy storage module are both located in the second area, and the inductor module is located in the third area.

[0005] According to the electric control device of the embodiment of the utility model, by locating the inverter module in the first area, the PFC module and the energy storage module in the second area, and the inductor module in the third area, the signal crosstalk between the inverter module, the PFC module, the energy storage module and the inductor module can be reduced, so that the electric control device has better stability, which is beneficial to the improvement of the performance of the electric control device.

[0006] In some embodiments of the present invention, the first area, the second area and the third area are arranged sequentially along a first direction of the circuit board.

[0007] In some embodiments of the present invention, the first region includes a first sub-region and a second sub-region arranged in sequence along a second direction, the first direction and the second direction are perpendicular to each other, the inverter module includes a first inverter module and a second inverter module, the first inverter module is located in the first sub-region, and the second inverter module is located in the second sub-region, wherein the working power of the first inverter module is greater than the working power of the second inverter module.

[0008] In some embodiments of the utility model, in the second direction, the second region includes a third sub-region and a fourth sub-region sequentially arranged along the second direction, the first sub-region and the third sub-region are relatively arranged in the first direction and jointly construct a first heat dissipation region, the PFC module is located in the third sub-region, the second sub-region and the fourth sub-region are relatively arranged in the first direction and jointly construct a second heat dissipation region, and the energy storage module is located in the fourth sub-region.

[0009] In some embodiments of the present invention, the energy storage module includes a plurality of electrolytic capacitors.

[0010] In some embodiments of the present invention, the inductor module includes a three-phase inductor and a common-mode inductor, the third region includes a fifth sub-region and a sixth sub-region arranged in sequence along the second direction, and in the first direction, the first sub-region, the third sub-region, and the fifth sub-region are relatively arranged to jointly construct the first heat dissipation region, and the three-phase inductor is located in the fifth sub-region; in the first direction, the second sub-region, the fourth sub-region, and the sixth sub-region are relatively arranged to jointly construct the second heat dissipation region, and the common-mode inductor is located in the sixth sub-region.

[0011] In some embodiments of the utility model, a third heat dissipation area is also arranged on the circuit board. In the second direction, the third heat dissipation area is located on the side of the second heat dissipation area away from the first heat dissipation area, and the operating temperature of the second inverter module is greater than the operating temperature of the electrical components on the third heat dissipation area.

[0012] In some embodiments of the present invention, the circuit board includes a first circuit board and a second circuit board, the first circuit board and the second circuit board are detachably connected via a connecting member, the first area and the second area are located on the first circuit board, and the third area is located on the second circuit board.

[0013] In some embodiments of the present invention, the connecting member includes at least one of a wire and a screw.

[0014] The utility model also provides a refrigeration device having the electric control device of the above embodiment.

[0015] According to the refrigeration equipment of the embodiment of the utility model, by being provided with the electric control device of the above embodiment, it can be beneficial to make the refrigeration equipment run more stably. The application can also be beneficial to optimize the position of the radiator or the radiating element, which can reduce the cost of the radiator and the radiating element.

[0016] The utility model also provides a heat pump system having the electric control device of the above embodiment.

[0017] According to the heat pump system of the embodiment of the utility model, by being provided with the electric control device of the above embodiment, it can be beneficial to make the heat pump system run more stably. The application can also be beneficial to optimize the position of the radiator or the heat dissipation element, which can reduce the cost of the radiator and the heat dissipation element.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of an electric control device according to an embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of an electric control device according to an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of an electric control device according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] Electronic control device 100,

[0025] Circuit board 1, first circuit board 11, second circuit board 12,

[0026] Inverter module 2, first inverter module 21, second inverter module 22, PFC module 3, energy storage module 4, first electrolytic capacitor 41, second electrolytic capacitor 42, third electrolytic capacitor 43, fourth electrolytic capacitor 44, inductor module 5, three-phase inductor 51, common mode inductor 52, wire 6.

[0027] The first area S1, the second area S2, the third area S3, the first heat dissipation area S4, the second heat dissipation area S5, and the third heat dissipation area S6. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present utility model, 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Reference below Figure 1-Figure 3 An electric control device 100 according to an embodiment of the present invention is described.

[0032] like Figure 1 As shown, the electric control device 100 according to the embodiment of the utility model includes a circuit board 1 and an inverter module 2, a PFC module 3, an energy storage module 4 and an inductor module 5 installed on the circuit board 1. The circuit board 1 has a first area S1, a second area S2 and a third area S3; the inverter module 2 is located in the first area S1, the PFC module 3 and the energy storage module 4 are both located in the second area S2, and the inductor module 5 is located in the third area S3. It can be understood that the position and arrangement relationship of the first area S1, the second area S2 and the third area S3 here can be as follows: Figure 1 As shown by the dotted circle.

[0033] Reference Figure 1 As shown in a specific example, the inductor module 5 includes a three-phase inductor 51 and a common-mode inductor 52, the three-phase inductor 51 and the common-mode inductor 52 are both electrically connected to the AC power supply, the inverter module 2, the PFC module 3 and the energy storage module 4 are all electrically connected to the DC power supply, and the three-phase inductor 51 and the common-mode inductor 52 electrically connected to the AC power supply are arranged in a third area S3, which can reduce signal crosstalk, improve the stability of the electronic control device 100, and is conducive to improving the performance of the electronic control device 100.

[0034] Furthermore, by arranging the inverter module 2 in the first area S1 and arranging the PFC module 3 and the energy storage module 4 in the second area S2, the signal crosstalk between the inverter module 2 and the PFC module 3 and the signal crosstalk between the inverter module 2 and the energy storage module 4 can be reduced, so that the electronic control device 100 has better stability, which is beneficial to the improvement of the performance of the electronic control device 100.

[0035] According to the electric control device 100 of the embodiment of the utility model, by locating the inverter module 2 in the first area S1, the PFC module 3 and the energy storage module 4 in the second area S2, and the inductor module 5 in the third area S3, the signal crosstalk between the inverter module 2, the PFC module 3, the energy storage module 4 and the inductor module 5 can be reduced, so that the electric control device 100 has better stability, which is beneficial to the improvement of the performance of the electric control device 100.

[0036] In some embodiments of the present invention, the first area S1, the second area S2 and the third area S3 are arranged in sequence along the first direction of the circuit board 1. Figure 1 As shown, the first direction can refer to the attached Figure 1 As shown in the left and right directions, by arranging the first area S1, the second area S2 and the third area S3 in sequence along the left and right directions, it is not only beneficial to the layout of the various electrical components on the circuit board 1 to avoid signal crosstalk between the various electrical components, but also allows electrical components with different functions to be arranged in different areas, which is convenient for the assembly of the electronic control device 100 and subsequent monitoring.

[0037] In some embodiments of the present invention, the first region S1 includes a first sub-region and a second sub-region sequentially arranged along a second direction, and the first direction and the second direction are perpendicular to each other. Figure 1 As shown, the first direction is the left-right direction, and the second direction is the up-down direction.

[0038] Further, the inverter module 2 includes a first inverter module 21 and a second inverter module 22, wherein the first inverter module 21 is located in the first sub-region and the second inverter module 22 is located in the second sub-region, wherein the working power of the first inverter module 21 is greater than the working power of the second inverter module 22. The working temperature of the first inverter module 21 with high working power is greater than the working temperature of the second inverter module 22 with low working power. Thus, by arranging the inverter modules 2 with different working powers in different regions, different heat dissipation elements or heat sinks can be arranged according to actual needs to dissipate heat for different inverter modules 2, so that the first inverter module 21 and the second inverter module 22 can dissipate heat better. In addition, the second inverter module 22 with low working power does not need to be provided with a heat dissipation element or heat sink with the same heat dissipation performance as the first inverter module 21 with high working power, that is, the second inverter module 22 with low working power can be provided with a heat dissipation element or heat sink with poorer heat dissipation performance, thereby reducing the cost of the electric control device 100.

[0039] In some embodiments of the present invention, the first inverter module 21 may be a compressor inverter module, and the second inverter module 22 may be a fan inverter module.

[0040] Optionally, in the second direction, the second region S2 includes a third sub-region and a fourth sub-region arranged in sequence along the second direction, the first sub-region and the third sub-region are arranged relative to each other in the first direction and jointly construct a first heat dissipation region S4, the PFC module 3 is located in the third sub-region, the second sub-region and the fourth sub-region are arranged relative to each other in the first direction and jointly construct a second heat dissipation region S5, and the energy storage module 4 is located in the fourth sub-region.

[0041] Reference Figure 1 and Figure 2 In a specific example shown in FIG. 1 , the circuit board 1 is arranged as a first heat dissipation area S4 and a second heat dissipation area S5 in the up-down direction (that is, the second direction mentioned above). It can be understood that the position and arrangement relationship of the first heat dissipation area S4 and the second heat dissipation area S5 here can be as follows: Figure 2As shown by the dotted circle shown. Compared with the PFC module 3, the energy storage module 4 has a lower operating temperature. Therefore, the first inverter module 21 and the PFC module 3, which have the same higher operating temperature, are both arranged in the first heat dissipation area S4, and the second inverter module 22 and the energy storage module 4, which have the same lower operating temperature, are both arranged in the second heat dissipation area S5. The radiator or heat dissipation element can be arranged well, so that the first inverter module 21, the second inverter module 22, the PFC module 3 and the energy storage module 4 can all be well cooled. In addition, the second inverter module 22 and the energy storage module 4, which have the same lower operating temperature, do not need to be provided with a heat dissipation element or heat sink with the same heat dissipation performance as the first inverter module 21 and the PFC module 3, which have the higher operating temperature. That is, the second inverter module 22 and the energy storage module 4, which have the lower operating temperature, can be provided with a heat dissipation element or heat sink with a worse heat dissipation performance, thereby reducing the cost of the electronic control device 100.

[0042] In some embodiments of the present invention, the energy storage module 4 includes a plurality of electrolytic capacitors, for example Figure 1 As shown, four electrolytic capacitors are provided, and the four electrolytic capacitors are a first electrolytic capacitor 41, a second electrolytic capacitor 42, a third electrolytic capacitor 43 and a fourth electrolytic capacitor 44, respectively. The first electrolytic capacitor 41, the second electrolytic capacitor 42, the third electrolytic capacitor 43 and the fourth electrolytic capacitor 44 can be arranged in a square, wherein the first electrolytic capacitor 41 and the second electrolytic capacitor 42 are located in the same column, and the third electrolytic capacitor 43 and the fourth electrolytic capacitor 44 are located in the same column. Thus, the wiring between the various electrical components on the electronic control device 100 can be simplified, the layout of the electrical components and the circuit can be optimized, and the current loop area when the circuit is working can be minimized, thereby reducing the interference between the electrical components and the circuit, and then improving the operating stability of the electronic control device 100.

[0043] In some embodiments of the utility model, the inductor module 5 includes a three-phase inductor 51 and a common-mode inductor 52, and the third area S3 includes a fifth sub-area and a sixth sub-area arranged in sequence along the second direction. In the first direction, the first sub-area, the third sub-area and the fifth sub-area are relatively arranged to jointly construct a first heat dissipation area S4, and the three-phase inductor 51 is located in the fifth sub-area; in the first direction, the second sub-area, the fourth sub-area and the sixth sub-area are relatively arranged to jointly construct a second heat dissipation area S5, and the common-mode inductor 52 is located in the sixth sub-area.

[0044] Reference Figure 1 and Figure 2 In a specific example shown in FIG. 1 , the circuit board 1 is arranged as a first heat dissipation area S4 and a second heat dissipation area S5 in the up-down direction (that is, the second direction mentioned above). It can be understood that the position and arrangement relationship of the first heat dissipation area S4 and the second heat dissipation area S5 here can be as follows: Figure 2Compared with the three-phase inductor 51, the common-mode inductor 52 has a lower operating temperature. Therefore, the first inverter module 21, the PFC module 3 and the three-phase inductor 51, which have the same higher operating temperature, are all arranged in the first heat dissipation area S4, and the second inverter module 22, the energy storage module 4 and the common-mode inductor 52, which have the same lower operating temperature, are all arranged in the second heat dissipation area S5. The layout of the heat sink or heat dissipation element can be better, so that the first inverter module 21, the second inverter module 22, the PFC module 3, the energy storage module 4, the three-phase The inductor 51 and the common-mode inductor 52 can both be well cooled. In addition, the second inverter module 22, the energy storage module 4 and the common-mode inductor 52, which have the same lower operating temperature, do not need to be provided with a heat dissipation element or a radiator with the same heat dissipation performance as the first inverter module 21, the PFC module 3 and the three-phase inductor 51 with higher operating temperature. That is, the second inverter module 22, the energy storage module 4 and the common-mode inductor 52, which have the lower operating temperature, can be provided with a heat dissipation element or a radiator with worse heat dissipation performance, thereby reducing the cost of the electronic control device 100.

[0045] In some embodiments of the present invention, a third heat dissipation area S6 is further arranged on the circuit board 1. In the second direction, the third heat dissipation area S6 is located on the side of the second heat dissipation area S5 away from the first heat dissipation area S4, and the operating temperature of the second inverter module 22 is greater than the operating temperature of the electrical components on the third heat dissipation area S6. Figure 2 In a specific example shown in FIG. 1 , the circuit board 1 is arranged as a first heat dissipation area S4 and a second heat dissipation area S5 in the up-down direction (that is, the second direction mentioned above). It can be understood that the position and arrangement relationship of the first heat dissipation area S4 and the second heat dissipation area S5 here can be as follows: Figure 2 As shown by the dotted circle shown. By arranging the third heat dissipation area S6 on the circuit board 1, some electrical components whose operating temperature is lower than that of the second inverter module 22 can be arranged in the third heat dissipation area S6, and the heat sink or heat dissipation element can be arranged according to actual needs. In one example, the electrical components located in the third heat dissipation area S6 do not need a heat sink or heat dissipation element for heat dissipation, thereby reducing the cost of the heat sink and the heat dissipation element, thereby reducing the cost of the electric control device 100.

[0046] Optionally, the electrical components on the third heat dissipation area S6 include at least one of a switching power supply, an MCU signal controller, a communicator, and a buffer circuit. Thus, the electrical components with lower heat during operation are centrally arranged, which can be beneficial to optimize the position of the heat sink or the heat dissipation element, and can reduce the cost of the heat sink and the heat dissipation element, thereby reducing the cost of the electric control device 100.

[0047] In some embodiments of the present invention, the circuit board 1 includes a first circuit board 11 and a second circuit board 12, the first circuit board 11 and the second circuit board 12 are detachably connected via a connecting piece, the first area S1 and the second area S2 are located on the first circuit board 11, and the third area S3 is located on the second circuit board 12.

[0048] Reference Figure 3 In a specific example shown, the inductor module 5 includes a three-phase inductor 51 and a common-mode inductor 52, the three-phase inductor 51 and the common-mode inductor 52 are electrically connected to the AC power supply, the inverter module 2, the PFC module 3 and the energy storage module 4 are electrically connected to the DC power supply, and the three-phase inductor 51 and the common-mode inductor 52 electrically connected to the AC power supply are arranged on a second circuit board 12, and the inverter module 2, the PFC module 3 and the energy storage module 4 are arranged on a first circuit board 11, which can reduce signal crosstalk, improve the stability of the electronic control device 100, and is beneficial to the performance of the electronic control device 100. In addition, it can also reduce the heat conduction between the electrical components passing the AC power and the electrical components passing the DC power, that is, the first circuit board 11 and the second circuit board 12 are detachably connected through the connector, which can increase the heat conduction distance between the first circuit board 11 and the second circuit board 12, so that the heat conduction of the high-temperature-resistant electrical components to the low-temperature-resistant electrical components can be reduced to a certain extent, which is beneficial to the stability of the electronic control device 100.

[0049] Optionally, the connecting member includes at least one of a wire 6 and a screw.

[0050] In one example, the first circuit board 11 and the second circuit board 12 are fixedly connected by screws, that is, screw holes are provided on both the first circuit board 11 and the second circuit board 12, and the edge of the second circuit board 12 can be overlapped on the edge of the first circuit board 11, and then the screw holes on the first circuit board 11 are made opposite to the screw holes on the second circuit board 12, and the screws are passed through the two screw holes in sequence to fix the first circuit board 11 and the second circuit board 12. The number of screws can be set in multiples along the up and down directions.

[0051] Reference Figure 3 In a specific example shown, the first circuit board 11 and the second circuit board 12 are fixedly connected by a wire 6, thereby allowing the first circuit board 11 and the second circuit board 12 to be spaced apart, thereby further reducing the heat transfer between the first circuit board 11 and the second circuit board 12, thereby being able to reduce to a certain extent the heat conduction from high-temperature-resistant electrical components to low-temperature-resistant electrical components, thereby being beneficial to the stability of the electronic control device 100.

[0052] The utility model also provides a refrigeration device having the electric control device 100 of the above embodiment.

[0053] According to the refrigeration equipment of the embodiment of the utility model, by being provided with the electric control device 100 of the above embodiment, it can be beneficial to make the refrigeration equipment run more stably. The application can also be beneficial to optimize the position of the radiator or the radiating element, which can reduce the cost of the radiator and the radiating element.

[0054] The present invention also provides a heat pump system having the electronic control device 100 of the above embodiment.

[0055] According to the heat pump system of the embodiment of the utility model, by providing the electronic control device 100 of the above embodiment, it can be beneficial to make the heat pump system run more stably. The application can also be beneficial to optimize the position of the radiator or the heat dissipation element, which can reduce the cost of the radiator and the heat dissipation element.

[0056] Other structures and operations of the electric control device 100, the refrigeration equipment and the heat pump system according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0057] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic control device, It is characterized in that include: A circuit board and an inverter module, a PFC module, an energy storage module and an inductor module mounted on the circuit board, wherein the circuit board has a first area, a second area and a third area; the inverter module is located in the first area, the PFC module and the energy storage module are both located in the second area, the inductor module is located in the third area, and the first area, the second area and the third area are arranged in sequence along a first direction of the circuit board; the first area includes a first sub-area and a second sub-area arranged in sequence along a second direction, the first direction and the second direction are perpendicular to each other, the inverter module includes a first inverter module and a second inverter module, the first inverter module is located in the first sub-area, and the second inverter module is located in the second sub-area, wherein the working power of the first inverter module is greater than the working power of the second inverter module.

2. The electronic control device according to claim 1, It is characterized in that In the second direction, the second region includes a third sub-region and a fourth sub-region sequentially arranged along the second direction, The first sub-region and the third sub-region are arranged opposite to each other in a first direction and jointly form a first heat dissipation region. The PFC module is located in the third sub-region. The second sub-region and the fourth sub-region are arranged opposite to each other in a first direction and jointly form a second heat dissipation region. The energy storage module is located in the fourth sub-region.

3. The electric control device according to claim 2, It is characterized in that The energy storage module includes a plurality of electrolytic capacitors.

4. The electric control device according to claim 2, It is characterized in that The inductor module includes a three-phase inductor and a common mode inductor, the third region includes a fifth sub-region and a sixth sub-region sequentially arranged along the second direction, In the first direction, the first sub-region, the third sub-region and the fifth sub-region are arranged relatively to each other to jointly form the first heat dissipation region, and the three-phase inductor is located in the fifth sub-region; In the first direction, the second sub-region, the fourth sub-region and the sixth sub-region are arranged relatively to each other and jointly construct the second heat dissipation region, and the common mode inductor is located in the sixth sub-region.

5. The electric control device according to claim 2 or 4, It is characterized in that A third heat dissipation area is also arranged on the circuit board. In the second direction, the third heat dissipation area is located on a side of the second heat dissipation area away from the first heat dissipation area. The operating temperature of the second inverter module is greater than the operating temperature of the electrical components on the third heat dissipation area.

6. The electric control device according to claim 5, It is characterized in that The electrical components on the third heat dissipation area include at least one of a switching power supply, an MCU signal controller, a communicator and a buffer circuit.

7. The electronic control device according to any one of claims 1 to 6, It is characterized in that The circuit board includes a first circuit board and a second circuit board, the first circuit board is detachably connected to the second circuit board via a connecting member, the first area and the second area are located on the first circuit board, and the third area is located on the second circuit board.

8. The electric control device according to claim 7, It is characterized in that The connecting member includes at least one of a wire and a screw.

9. A refrigeration device, It is characterized in that The invention comprises the electronic control device according to any one of claims 1 to 8.

10. A heat pump system, It is characterized in that The invention comprises the electronic control device according to any one of claims 1 to 8.

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