Electric control assembly, heating and ventilation equipment outdoor unit and heating and ventilation equipment

Abstract

The utility model relates to the technical field of heating and ventilation equipment, and discloses an electric control assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, the electric control assembly comprises a circuit board, a power device and a radiator, the circuit board is provided with a first surface and a second surface which are oppositely arranged, the first surface is used for arranging a non-power device, and the power device is arranged on the second surface; the radiator is arranged on the second face, the power device is arranged between the circuit board and the radiator, and the heat dissipation piece is used for dissipating heat of the power device. According to the electric control assembly, the power device and the radiator are arranged on the second surface of the circuit board, when the circuit board is disassembled, operation can be carried out from one side of the first surface opposite to the second surface, and no obstruction of the radiator exists, so that the circuit board is convenient to disassemble, and the disassembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC equipment, in particular to an electric control component, an outdoor unit of HVAC equipment and HVAC equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] The heat generated by components within the electronic control box is directly related to their lifespan. According to the Arrhenius equation, a 10°C temperature increase generally halves the lifespan of electronic control components, making heat dissipation crucial. Currently, most power devices rely on refrigerants for heat dissipation. Electronic control components are typically designed with the circuit board mounted behind the refrigerant heat sink. This requires avoiding the refrigerant heat sink when removing the electronic control board, making removal inconvenient. Utility Model Content

[0004] The purpose of the present invention is to at least solve the problem of inconvenience in disassembling the electric control panel. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the present invention provides an electronic control assembly, comprising:

[0006] The circuit board has a first side and a second side arranged opposite to each other, wherein the first side is used for arranging non-power devices;

[0007] A power device is provided on the second surface;

[0008] The heat sink is arranged on the second surface, the power device is arranged between the circuit board and the heat sink, and the heat sink is used to dissipate heat for the power device.

[0009] The electric control assembly of the present invention arranges the power device and the heat sink on the second surface of the circuit board. When the circuit board is disassembled, the operation can be performed from the first surface opposite to the second surface without the obstruction of the heat sink, thereby facilitating the disassembly of the circuit board and improving the disassembly efficiency.

[0010] In addition, the electric control assembly according to the present invention may also have the following additional technical features:

[0011] In some embodiments of the present invention, a first mounting groove is provided on a side of the heat sink facing the second surface, and the power device is at least partially mounted in the first mounting groove.

[0012] In some embodiments of the present invention, the electronic control component also includes a first connecting member, which passes through the circuit board and is used to connect to the circuit board and the radiator. The first connecting member is provided with a first limiting portion that is offset against the first surface limit.

[0013] In some embodiments of the present invention, the electronic control assembly further includes a mounting plate, which is located on the second surface and is detachably connected to the second surface.

[0014] In some embodiments of the present invention, the electronic control component further includes a second connecting member, which passes through the circuit board and is used to connect the circuit board and the mounting plate. The second connecting member is provided with a second limiting portion that is offset against the first surface limit.

[0015] In some embodiments of the present invention, the electronic control component further includes a refrigerant heat dissipation pipe, and the refrigerant heat dissipation pipe is arranged on a side of the radiator away from the second surface.

[0016] In some embodiments of the present invention, a second mounting groove is provided on a side of the radiator facing away from the circuit board, and at least a portion of the refrigerant heat dissipation pipe is accommodated in the second mounting groove.

[0017] In some embodiments of the present invention, the non-power devices include high-voltage devices and low-voltage devices. The first surface has a high-voltage area and a low-voltage area. The high-voltage devices are installed in the high-voltage area, and the low-voltage devices are installed in the low-voltage area.

[0018] A second aspect of the present invention provides an outdoor unit of a heating and ventilation equipment, comprising a housing and an electric control component as described above, wherein an electric control chamber is provided in the housing, and the electric control component is installed in the electric control chamber.

[0019] A third aspect of the present invention provides a HVAC equipment, comprising an indoor unit and an outdoor unit as described above, wherein the indoor unit and the outdoor unit are connected via a pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0021] Figure 1 Schematically shows a structural diagram of an electric control component according to an embodiment of the present utility model at a first viewing angle;

[0022] Figure 2 Schematically shows a structural diagram of the electric control component according to an embodiment of the present utility model at a second viewing angle;

[0023] Figure 3 Schematically shows an exploded view of an electronic control component according to an embodiment of the present utility model;

[0024] Figure 4 Schematically shows the layout of components on the first side of the electronic control assembly according to an embodiment of the present utility model;

[0025] Figure 5 The figure schematically shows the layout of components on the second surface of the electronic control assembly according to the embodiment of the present utility model.

[0026] The reference numerals are as follows:

[0027] 100. Electronic control components;

[0028] 1. Circuit board; 11. First side; 12. Second side;

[0029] 2. Power devices; 21. Compressor driver; 22. PFC device; 23. Rectifier bridge;

[0030] 3. Radiator; 31. First mounting slot; 32. Second mounting slot;

[0031] 4. First connecting member;

[0032] 5. Mounting plate; 51. Airtight gap; 52. Card slot;

[0033] 6. Second connecting piece;

[0034] 7. Refrigerant heat dissipation pipe; 71. Straight pipe portion; 72. Bend pipe portion;

[0035] 8. Non-power devices; 81. Capacitor electrolyzer; 82. PFC inductor; 83. Fan driver; 84. Drive controller; 85. Power input filter;

[0036] 9. Pressing plate; 91. Pressing groove; 92. Buckle. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "above" the other element or feature. Thus, the example term "below" can encompass both above and below orientations.

[0041] In related technologies, power devices usually rely on refrigerant heat dissipation for heat dissipation. In most heat dissipation structures, the power devices, radiators and refrigerant tubes are all arranged on the front of the electronic control board, and then the electronic control board is installed on the fixed plate. The electronic control board under the above arrangement is clamped between the fixed plate and the refrigerant tube. When disassembling the electronic control board, it is necessary to avoid the refrigerant tube, which increases the difficulty of disassembly and brings inconvenience to the disassembly of the electronic control board.

[0042] In view of this, the present embodiment provides an electronic control component 100, which aims to solve the above-mentioned technical problems by arranging the power device 2 and the heat sink 3 on the second surface 12 of the circuit board 1. When the circuit board 1 is disassembled, the operation can be performed from the side of the first surface 11 opposite to the second surface 12, thereby facilitating the disassembly of the electronic control board.

[0043] like Figures 1 to 5 As shown, according to an embodiment of the present invention, an electronic control component 100 is proposed. The electronic control component 100 includes a circuit board 1, a power device 2, and a heat sink 3. The circuit board 1 has a first surface 11 and a second surface 12 arranged opposite to each other. The first surface 11 is used to arrange non-power devices 8, the power device 2 is arranged on the second surface 12, and the heat sink 3 is arranged on the second surface 12. The power device 2 is arranged between the circuit board 1 and the heat sink 3, and the heat sink is used to dissipate heat for the power device 2. The first surface 11 mentioned above can be regarded as the front side of the circuit board 1. Correspondingly, the second surface 12 is the back side of the circuit board 1. That is, the power device 2 and the heat sink 3 are both arranged on the back side of the circuit board 1. Since the heat sink 3 is arranged on the back side of the circuit board 1, there is no obstruction of the heat sink 3 on the front side. Therefore, when the circuit board 1 is disassembled, the circuit board 1 can be disassembled from the front side of the circuit board 1, thereby facilitating the disassembly of the circuit board 1 and improving the disassembly efficiency. The power device 2 includes a compressor driver 21, a PFC device 22 (PFC, Power Factor Correction), and a rectifier bridge 23. The compressor driver 21 is a high-voltage and low-voltage device, while the PFC device 22 and rectifier bridge 23 are high-voltage devices. Because the power device 2 generates a high amount of heat, installing it between the circuit board 1 and the heat sink 3 facilitates heat dissipation, improves heat dissipation efficiency and effectiveness, and extends the service life of the power device 2.

[0044] In some embodiments of the present invention, a first mounting groove 31 is provided on a side of the heat sink 3 facing the second surface 12, and the power device 2 is at least partially installed in the first mounting groove 31. There are multiple power devices 2, and multiple first mounting grooves 31 are provided at intervals along the length of the heat sink 3. The multiple power devices 2 are arranged in a one-to-one correspondence in the multiple first mounting grooves 31. The provision of the first mounting grooves 31 facilitates the installation of the power devices 2, ensures the reliability and firmness of the installation, and helps to increase the contact area between the power devices 2 and the heat sink 3, thereby better dissipating heat from the power devices 2 and improving the heat dissipation efficiency and effect.

[0045] In some embodiments of the present invention, the electronic control assembly 100 further includes a first connector 4, which is inserted through the circuit board 1 and is used to connect the circuit board 1 and the heat sink 3. The first connector 4 has a first stopper that abuts against the first surface 11. Specifically, the first connector 4 includes a first bolt, and the first stopper is a nut for the first bolt. A first bolt hole is provided in the circuit board 1, and a second bolt hole corresponding to the first bolt hole is provided in the heat sink 3. The first bolt is inserted through the first surface 11 to connect the heat sink 3 and the circuit board 1, and the nut of the first bolt abuts against the first surface 11. To ensure a reliable connection between the heat sink 3 and the circuit board 1, multiple first bolts, first bolt holes, and second bolt holes may be provided. When installing the heat sink 3, after the power device 2 is installed in the first mounting slot 31 on the heat sink 3, the first bolt hole is aligned with the second bolt hole. The first bolt is then inserted through the first bolt hole and the second bolt hole from the first surface 11 of the circuit board 1, thereby connecting the heat sink 3 to the circuit board 1 and facilitating installation and removal of the electronic control board.

[0046] In other embodiments, the heat sink 3 and the circuit board 1 may be connected by means of slot snap fixation, welding, bonding, or the like.

[0047] To achieve a reliable connection of the power device 2, this embodiment further includes a third connecting member, which includes a third bolt. A third bolt hole is also provided on the power device 2, and a fourth bolt hole corresponding to the third bolt hole is also provided on the circuit board 1. To achieve a reliable connection between the power device 2 and the circuit board 1, a plurality of third bolts, third bolt holes, and fourth bolt holes may be provided. When installing the power device 2, after the power device 2 is mounted in the first mounting slot 31 on the heat sink 3, the third bolt is sequentially passed through the third bolt hole and the fourth bolt hole from the side of the first surface 11, thereby connecting the power device 2 to the circuit board 1. This facilitates assembly and disassembly of the power device 2 while ensuring a secure connection.

[0048] In some embodiments of the present invention, the electronic control component 100 further includes a mounting plate 5, which is provided on the second surface 12 and is detachably connected to the second surface 12. Specifically, the circuit board 1 is connected to the mounting plate 5 via a second connecting member 6, which is provided through the circuit board 1 and is used to connect the circuit board 1 and the mounting plate 5. The second connecting member 6 is provided with a second limiting portion that is limited against the first surface 11. The second connecting member 6 includes a second bolt, and the second limiting portion is a nut of the second bolt. A fifth bolt hole is provided on the circuit board 1, and a sixth bolt hole corresponding to the fifth bolt hole is provided on the mounting plate 5. The second bolt is provided from the first surface 11 to connect with the circuit board 1 and the mounting plate 5, and the nut of the second bolt is fixed against the first surface 11. In order to achieve a reliable connection between the circuit board 1 and the mounting plate 5, the number of the second bolt, the fifth bolt hole and the sixth bolt hole can be set to multiple, and the mounting plate 5 is also provided with a gap 51 to avoid the radiator 3. When installing the electronic control board, first install the power device 2 and the heat sink 3 on the second surface 12, then align the fifth bolt hole with the sixth bolt hole, and then use the second bolt to pass through the fifth bolt hole and the sixth bolt hole in sequence from the side of the first surface 11, thereby connecting the circuit board 1 to the mounting plate 5, which facilitates the installation and removal of the electronic control board.

[0049] In other embodiments, the circuit board 1 and the mounting plate 5 may be connected by means of slot snap fixation, welding, bonding, or the like.

[0050] In some embodiments of the present invention, the electronic control assembly 100 further includes a refrigerant heat dissipation pipe 7, which is disposed on the side of the radiator 3 facing away from the second surface 12. The refrigerant heat dissipation pipe 7 may be, for example, a copper tube. The refrigerant heat dissipation pipe 7 may be formed with an inlet and an outlet, allowing refrigerant to enter the refrigerant heat dissipation pipe 7 through the inlet and exit the refrigerant heat dissipation pipe 7 through the outlet after heat exchange with the refrigerant heat dissipation pipe 7. The refrigerant heat dissipation pipe 7 includes a straight pipe portion 71 and a curved pipe portion 72. The straight pipe portion 71 may include multiple spaced-apart portions. The curved pipe portion 72 connects the multiple straight pipe portions 71 and can connect the multiple straight pipe portions 71 in series, in parallel, or in series and parallel. The curved pipe portion 72 may be generally V-shaped, C-shaped, U-shaped, or the like. The provision of the refrigerant heat dissipation pipe 7 helps extend the refrigerant's path within the refrigerant heat dissipation pipe 7, thereby improving heat dissipation efficiency.

[0051] In some embodiments of the present invention, a second mounting groove 32 is provided on the surface of the radiator 3, and at least a portion of the refrigerant heat dissipation tube 7 is accommodated within the second mounting groove 32. Specifically, multiple second mounting grooves 32 are spaced apart along the width of the radiator 3, and each second mounting groove 32 extends along the length of the radiator 3. The opening width of the second mounting groove 32 is not less than (greater than or equal to) the outer diameter of the refrigerant heat dissipation tube 7, making it easy to install and remove the refrigerant heat dissipation tube 7 from the radiator 3 through the second mounting groove 32, and the operation is convenient and quick. The second mounting groove 32 can pass through both ends of the radiator 3 along the length of the radiator 3, and a portion of the straight tube portion 71 is accommodated within the second mounting groove 32, with the end of the straight tube portion 71 being flush with the end of the second mounting groove 32 or extending beyond the end of the second mounting groove 32. This facilitates positioning of the refrigerant heat dissipation tube 7 on the radiator 3 through the second mounting groove 32, and also helps to reduce the volume of the refrigerant heat dissipation tube 7, saving space.

[0052] In this embodiment, the electronic control assembly 100 further includes a pressure plate 9, which is provided with a compression groove 91 extending along its length. The compression groove 91 corresponds to the second mounting groove 32. The second mounting groove 32 and the compression groove 91 cooperate to further compress the refrigerant heat dissipation tube 7. The center of the pressure plate 9 is screwed to the radiator 3, and the screws lock the pressure plate 9 and make the center of the pressure plate 9 fit the radiator 3. The pressure plate 9 is provided with multiple clips 92, and the mounting plate 5 is provided with multiple slots 52 that match the clips 92. The pressure plate 9 is connected to the mounting plate 5 via the clips 92 and the slots 52.

[0053] In the related art, since the heat sink 3 and the power device 2 are both arranged on the front of the electronic control board, the installation space for components on the front of the electronic control board is small and the wiring layout is relatively chaotic, which is not conducive to the disassembly and maintenance of the components.

[0054] In contrast, in some embodiments of the present invention, the non-power device 8 includes a strong current device and a weak current device, and the first surface 11 has a strong current area and a weak current area, the strong current device is installed in the strong current area, and the weak current device is installed in the weak current area. Specifically, the strong current device is a component that withstands a voltage greater than 36V in the components, including a capacitor electrolyzer 81, a PFC inductor 82 and a power input filter 85, and the above components are installed in the strong current area. The weak current device is a drive controller 84, which is installed in the weak current area, and also includes a fan driver 83, which is a strong current + weak current device. In this way, the strong current and weak current are separated, which can improve the wiring layout of the components and facilitate the disassembly and maintenance of the components. Moreover, since the radiator 3 and the power device 2 are installed on the back of the circuit board 1, the installation space on the front of the electric control board is larger, which is convenient for the installation of components.

[0055] A second aspect of the present invention provides an outdoor unit for heating and ventilation equipment. The outdoor unit includes a housing and the aforementioned electronic control assembly 100. A central partition is provided within the housing, separating the housing into an electronic control chamber and a fan chamber. The electronic control assembly 100 is installed within the electronic control chamber. The operating process of the outdoor unit for heating and ventilation equipment is understood by referring to related art and will not be further described in this application.

[0056] A third aspect of the present invention provides a heating and ventilation equipment, comprising an indoor unit and the aforementioned outdoor unit, wherein the indoor unit and the outdoor unit are connected by a pipe. For other components of the heating and ventilation equipment and the operation process of the heating and ventilation equipment, please refer to the relevant art for understanding, and this application will not elaborate on them here.

[0057] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An electronic control component, characterized in that: include: The circuit board has a first side and a second side arranged opposite to each other, wherein the first side is used for arranging non-power devices; A power device is provided on the second surface; A heat sink is provided on the second surface, the power device is provided between the circuit board and the heat sink, and the heat sink is used to dissipate heat for the power device.

2. The electronic control assembly according to claim 1, characterized in that: A first mounting groove is provided on a side of the heat sink facing the second surface, and the power device is at least partially mounted in the first mounting groove.

3. The electronic control assembly according to claim 2, characterized in that: The electronic control component further includes a first connector, which is provided through the circuit board and is used to connect to the circuit board and the radiator. The first connector is provided with a first limiting portion that is abutted against the first surface.

4. The electronic control assembly according to any one of claims 1 to 3, characterized in that: The electronic control assembly further includes a mounting plate, which is located on the second surface and is detachably connected to the second surface.

5. The electronic control assembly according to claim 4, characterized in that: The electronic control component further includes a second connector, which is passed through the circuit board and is used to connect the circuit board and the mounting plate. The second connector is provided with a second limiting portion that is offset against the first surface.

6. The electronic control assembly according to any one of claims 1 to 3, characterized in that: The electronic control component further includes a refrigerant heat dissipation pipe, and the refrigerant heat dissipation pipe is arranged on a side of the radiator away from the second surface.

7. The electronic control assembly according to claim 6, characterized in that: A second mounting groove is provided on a side of the radiator facing away from the circuit board, and at least a portion of the refrigerant heat dissipation pipe is accommodated in the second mounting groove.

8. The electronic control assembly according to claim 1, characterized in that: The non-power devices include high-voltage devices and low-voltage devices. The first surface has a high-voltage area and a low-voltage area. The high-voltage devices are installed in the high-voltage area, and the low-voltage devices are installed in the low-voltage area.

9. An outdoor unit of a heating and ventilation equipment, characterized in that: The electronic control device comprises a shell and an electronic control component according to any one of claims 1 to 8, wherein an electronic control chamber is provided in the shell, and the electronic control component is installed in the electronic control chamber.

10. A HVAC equipment, characterized in that: It comprises a HVAC equipment indoor unit and a HVAC equipment outdoor unit according to claim 9, wherein the HVAC equipment indoor unit and the HVAC equipment outdoor unit are connected through a pipeline.

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