Electric component box, air conditioner, and indoor unit for air conditioner
The electrical component box with a magnetic cover and insulating base with thin-walled portions addresses the issue of magnetic attachment interference by resin bases, allowing for cost-effective reuse of inspection jigs and improved heat dissipation, thus reducing manufacturing costs.
Patent Information
- Application Number
- JP2024084338
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-12-05
AI Technical Summary
The use of inspection jigs with magnets on electrical equipment boxes for air conditioners is hindered by resin bases, leading to increased manufacturing equipment costs due to the need for new jigs and equipment when the magnet cannot attach, as the resin base prevents magnetic attachment.
An electrical component box design featuring an insulating base with thin-walled portions near terminal blocks, covered by a magnetic box, allows for stable attachment of inspection jigs using magnets, reducing the need for new equipment by reusing conventional jigs.
This configuration enables the reuse of inspection jigs, thereby reducing manufacturing equipment costs by ensuring effective magnetic attachment and improving heat dissipation through the use of a magnetic box and insulating base design.
Smart Images

Figure 2025177476000001_ABST
Abstract
Description
[Technical Field]
[0001] An embodiment of the present invention relates to an electrical component box, an air conditioner, and an indoor unit of an air conditioner. [Background technology]
[0002] Inspection jigs equipped with magnets are sometimes used on the manufacturing line of electrical equipment boxes for air conditioners. For example, there is a configuration in which there is no resin base inside the electrical equipment box, and the outer metal sheet is exposed. In this configuration, the control unit is fixed with fixing devices such as edge spacers and clamps, and the inspection jig is used during manufacturing. On the other hand, there is a configuration in which there is a resin base inside the electrical equipment box, and the outer metal sheet is not exposed on the surface. In this configuration, the magnet of the inspection jig may not attach to the outer metal sheet due to the presence of the resin base, making it impossible to use the inspection jig. If the inspection jig cannot be reused, new jigs and equipment will be required, increasing manufacturing equipment costs. Therefore, it is necessary to reduce manufacturing equipment costs. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 6833108 Summary of the Invention [Problem to be solved by the invention]
[0004] The problem to be solved by the present invention is to provide an electrical component box, an air conditioner, and an indoor unit of an air conditioner that can reduce manufacturing equipment costs. [Means for solving the problem]
[0005] The electrical component box of the embodiment has an insulating base and a magnetic box. The insulating base is provided with an electrical component and a terminal block. The electrical component and terminal block constitute an air conditioner. The magnetic box is made of a magnetic material. The magnetic box covers the insulating base. The insulating base has two or more thin-walled portions near the terminal block. [Brief explanation of the drawings]
[0006] [Figure 1] 1 is a perspective view of an air conditioner according to an embodiment. [Figure 2] FIG. 2 is a perspective view of an electrical component box according to the embodiment. [Figure 3] FIG. 3 is a perspective view of a portion seen from arrow III in FIG. 2. [Figure 4] IV-IV cross section of Figure 3. [Figure 5] FIG. 3 is a cross-sectional perspective view taken along line VV of FIG. 2; [Figure 6] FIG. 6 is a cross-sectional perspective view taken along the line VI-VI in FIG. 2 . [Figure 7] FIG. 7 is a cross-sectional perspective view taken along line VII-VII of FIG. 2. [Figure 8] FIG. [Figure 9] FIG. 4 is a plan view of a portion of the electrical component box where an inspection jig is attached. [Figure 10] FIG. 4 is a perspective view of a portion of the electrical component box where an inspection jig is attached. [Figure 11] FIG. 10 is a perspective view of an electrical component box with an inspection jig attached thereto. DETAILED DESCRIPTION OF THE INVENTION
[0007] Hereinafter, an electric component box, an air conditioner, and an indoor unit of an air conditioner according to embodiments will be described with reference to the drawings.
[0008] Fig. 1 is a perspective view of an air conditioner 1 according to an embodiment. Fig. 2 is a perspective view of an electric component box 10 according to an embodiment. 1 and 2, the air conditioner 1 is a ceiling-mounted air conditioner. The indoor unit 2 of the air conditioner 1 is a ceiling cassette type indoor unit with four-way air outlets. The indoor unit 2 constitutes the air conditioner 1 together with an outdoor unit (not shown).
[0009] In the following description, the directions of front, back, up, down, left, and right are based on the directions of the indoor unit 2 when in use. In FIG. 1, the arrow UP indicates upward, the arrow FR indicates forward, and the arrow LH indicates the left side when viewing the indoor unit 1 from the rear. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," do not only mean those exact arrangements or states, but also include arrangements or states in which there is a relative displacement with a tolerance or an angle or distance that provides the same function. In the drawings used in the following description, the scale of each component may be changed as appropriate to make each component recognizable.
[0010] The indoor unit 2 includes an indoor unit main body 3 that is embedded in the ceiling, and a decorative panel 4 that covers the underside of the indoor unit main body 3.
[0011] The indoor unit body 3 is formed in the shape of a housing. The indoor unit body 3 houses a heat exchanger, a blower (e.g., a centrifugal blower), etc. The indoor unit body 3 is attached by being suspended from a ceiling base material by suspension means (e.g., four sets of suspension members) not shown.
[0012] The decorative panel 4 is formed in a rectangular shape. The decorative panel 4 is formed so as to cover the air inlet 5 and the air outlet 6 of the indoor unit body 3. A rectangular grill 7 is provided on the decorative panel 4 so as to correspond to the air inlet 5. The grill 7 is formed in the center of the decorative panel 4. A filter is removably fitted into the grill 7. The decorative panel 4 is provided with louvers 8 so as to correspond to the air outlet 6. The louvers 8 are formed on the four sides surrounding the grill 7 of the decorative panel 4. The air outlet 6 is configured to be openable and closable by the louvers 8.
[0013] The indoor heat exchanger (not shown) is connected to the outdoor unit via a refrigerant pipe. The indoor heat exchanger, together with an outdoor heat exchanger, a compressor, an expansion valve, and other components mounted in the outdoor unit, constitute a refrigeration cycle device. In the refrigeration cycle device, the refrigerant circulates while changing phases between gas and liquid. The refrigerant flowing through the indoor heat exchanger exchanges heat with the conditioned air sent out from the blower. In this case, the indoor heat exchanger functions as a condenser when the air conditioner 1 is in heating operation and as an evaporator when it is in cooling operation.
[0014] The electric component box 10 is housed in the indoor unit main body 3. Referring also to FIG.
[0015] In the following explanation, an X, Y, Z Cartesian coordinate system is used as needed. In the X, Y, and Z directions, the arrows in the drawings refer to the plus (+) side, and the opposite side to the arrows refers to the minus (-) side. The electrical component box 10 has its longitudinal axis in the X direction.
[0016] The insulating base 11 is made of resin. However, the insulating base 11 is not limited to the above, and may be made of an insulating material other than resin. The material for forming the insulating base 11 can be changed according to design specifications.
[0017] The insulating base 11 is provided with electrical components 20 and terminal blocks 21 and 22. The electrical components 20 and terminal blocks 21 and 22 constitute the air conditioner 1. The insulating base 11 is longitudinal in the X direction and has a thickness in the Z direction. The electrical components 20 and terminal blocks 21 and 22 are provided on the surface (+Z side) of the insulating base 11.
[0018] The insulating base 11 is provided with a plurality of terminal blocks 21, 22. The plurality of terminal blocks 21, 22 include a first terminal block 21 and a second terminal block 22. The first terminal block 21 is, for example, a power supply terminal block to which a power supply or the like is connected. The first terminal block 21 is provided on the -X end side of the insulating base 11. The first terminal block 21 has a plurality of terminal portions (for example, three) for power lines connected to an external power supply arranged in the X direction. The configuration of the first terminal block 21 is not limited to the above and can be changed according to design specifications.
[0019] The second terminal block 22 is a remote control terminal block to which, for example, a remote control or the like is connected. The second terminal block 22 is provided on the +X end side of the insulating base 11 at the -Y end side. The second terminal block 22 has a plurality of (for example, two) terminal portions for the remote control arranged side by side in the Y direction. The configuration of the second terminal block 22 is not limited to the above and can be changed according to design specifications.
[0020] The first terminal block 21 and the second terminal block 22 may be disposed so as to protrude toward the +Z side from the general surface (for example, the XY plane on which the control unit 40 is provided) of the insulating base 11. This contributes to improving the ease of installation (for example, ease of arranging power supply wiring).
[0021] The magnetic box 12 is made of a magnetic material. The magnetic box 12 is made of sheet metal. The magnetic box 12 is made of a metal material, for example, iron. Note that the magnetic box 12 is not limited to the above, and may be made of a magnetic material other than metal. The material from which the magnetic box 12 is made can be changed according to design specifications.
[0022] The magnetic box 12 covers the insulating base 11. The magnetic box 12 forms the outer shell of the electrical component box 10. The magnetic box 12 has a longitudinal direction in the X direction. The magnetic box 12 is formed in a box shape that opens in the +Z direction. The magnetic box 12 covers the insulating base 11 from the outside in each of the X and Y directions and from the -Z side. The magnetic box 12 exposes the insulating base 11 on the +Z side.
[0023] Fig. 3 is a perspective view of a portion seen from arrow III in Fig. 2. That is, Fig. 3 is a perspective view of the electrical component box 10 seen from the -Z side. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3. 3 and 4, the insulating base 11 has two or more thin portions 11T near the first terminal block 21. The thin portions 11T are provided in portions of the insulating base 11 that are further outward in the Y direction than the first terminal block 21. The thin portions 11T are thinner than the portions of the insulating base 11 where the electrical component 20 and the terminal blocks 21 and 22 are provided.
[0024] The magnetic box 12 has rising portions 12R1 and 12R2. The rising portions 12R1 and 12R2 are bent from a part of the magnetic box 12 and run along the rear surface of the thin-walled portion 11T. The rising portions 12R1 and 12R2 are bent from a part of the XY plane of the magnetic box 12 toward the +Z side and then bent toward the +Y side. The rising portions 12R1 and 12R2 are formed in an L-shape when viewed in a YZ cross section.
[0025] A plurality of rising portions 12R1, 12R2 are provided. The plurality of rising portions 12R1, 12R2 include a first rising portion 12R1 and a second rising portion 12R2. The first rising portion 12R1 is provided in a portion of the magnetic box 12 that is closer to the -Y side than the first terminal block 21. The second rising portion 12R2 is provided in a portion of the magnetic box 12 that is closer to the +Y side than the first terminal block 21.
[0026] Distances D1 and D2 from the surface of thin portion 11T to magnetic box 12 (rising portions 12R1 and 12R2 in the illustrated example) are 2 mm or less. Distances D1 and D2 from the surface of thin portion 11T to magnetic box 12 correspond to the distance in the Z direction from the +Z side surface of thin portion 11T to the +Z side surface of magnetic box 12 in a YZ cross-sectional view. For example, distance D1 from the surface of thin portion 11T to first rising portion 12R1 and distance D2 from the surface of thin portion 11T to second rising portion 12R2 are each set to be 1 mm or more and 2 mm or less.
[0027] Fig. 5 is a perspective cross-sectional view taken along line VV in Fig. 2. Fig. 6 is a perspective cross-sectional view taken along line VI-VI in Fig. 2. 5 and 6, the insulating base 11 has fitting portions 31 and 32 into which parts of the terminal blocks 21 and 22 can be fitted.
[0028] The insulating base 11 has a fitting portion 31 (hereinafter also referred to as "first fitting portion 31") into which the -X side end portion of the first terminal block 21 can be fitted. The first fitting portion 31 includes a portion that extends from a part of the -X end side of the insulating base 11 to the +Z side and then extends to the +X side in an XZ cross-sectional view. The -X side end portion of the first terminal block 21 is fitted between the first fitting portion 31 and the XY surface portion of the magnetic box 12. The +X side end portion of the first terminal block 21 is fixed to the insulating base 11 with a fastening member (fixing part) such as a screw.
[0029] The insulating base 11 has a fitting portion 32 (hereinafter also referred to as "second fitting portion 32") into which the -Y side end portion of the second terminal block 22 can be fitted. The second fitting portion 32 includes a portion that extends from a part of the -Y end side of the insulating base 11 to the +Z side and then extends to the +Y side in a YZ cross-sectional view. The -Y side end portion of the second terminal block 22 is fitted between the second fitting portion 32 and the XY surface portion of the insulating base 11. The +Y side end portion of the second terminal block 22 is fixed to the insulating base 11 with a fastening member (fixing part) such as a screw.
[0030] 7 is a perspective cross-sectional view taken along line VII-VII of FIG. 7, a control unit 40 is provided as the electrical component 20. An opening 50 that opens near the control unit 40 is formed in the insulating base 11.
[0031] The control unit 40 is used to control the operation of the air conditioner 1. The control unit 40 controls the components of the air conditioner 1. The control unit 40 is configured by mounting multiple devices (such as a power conversion device and an operation control device) on a substrate along the XY plane (on the +Z side of the XY plane).
[0032] At least a portion of the opening 50 exposes a portion of the magnetic box 12. The opening 50 includes a through hole 51 that opens the XY surface of the insulating base 11 in the Z direction in a YZ cross-sectional view. The through hole 51 opens in the Z direction at a portion of the insulating base 11 that faces the control unit 40. The through hole 51 exposes a portion of the XY surface of the magnetic box 12 in the Z direction in a YZ cross-sectional view. This allows heat generated by the control unit 40 to escape in the direction of the arrow (-Z direction).
[0033] At least a portion of the opening 50 forms a flow path for the inflow and / or outflow of outside air. The opening 50 includes notches 52 and 53 that open the XZ surface of the insulating base 11 in the Y direction in a YZ cross-sectional view. The notches 52 and 53 open the portion of the insulating base 11 facing the control unit 40 in the Y direction. The notches 52 and 53 connect the space on the -Z side of the control unit 40 to the gap (space outside in the Y direction) between the XZ surface of the insulating base 11 and the XZ surface of the magnetic box 12 (each of the Y-direction outer surface portions). The space formed between the -Z side end face of the control unit 40 and the insulating base 11 or the magnetic box 12 can be communicated with the outside by the notch 52 formed in the XZ surface of the insulating base 11 and the notch 53 formed in the XZ surface of the magnetic box 12. This allows the inflow and / or outflow of outside air to dissipate heat generated by the control unit 40 in the direction of the arrow (+Z direction).
[0034] Fig. 8 is a perspective view of the inspection jig 70. Fig. 9 is a plan view of a portion of the electrical component box 10 to which the inspection jig 70 is attached. Fig. 10 is a perspective view of a portion of the electrical component box 10 to which the inspection jig 70 is attached. Fig. 11 is a perspective view of the electrical component box 10 with the inspection jig 70 attached. 8 to 11, an inspection jig 70 equipped with a magnet 71 may be used in a manufacturing line for the electrical component box 10 of the air conditioner 1.
[0035] The inspection jig 70 has multiple magnets 71 on its surface facing the electrical component box 10 when in use. The inspection jig 70 is configured so that, for example, two magnets 71 are attached to the rising portions 12R1 and 12R2 along the thin-walled portion 11T. The example shown in the figure shows a case where some of the magnets 71 of the inspection jig 70 are attached to the rising portion 12R1 along the thin-walled portion 11T, and some of the magnets 71 of the inspection jig 70 are attached to the thin-walled portion 11T where no rising portion is formed.
[0036] As described above, the electrical component box 10 of this embodiment has an insulating base 11 and a magnetic box 12. The insulating base 11 is provided with the electrical component 20 and the terminal blocks 21 and 22. The electrical component 20 and the terminal blocks 21 and 22 constitute the air conditioner 1. The magnetic box 12 is made of a magnetic material. The magnetic box 12 covers the insulating base 11. The insulating base 11 has two or more thin-walled portions 11T near the terminal block 21. According to this configuration, by making only a portion of the insulating base 11 where a magnetic force is to be applied the thin-walled portion 11T, the magnetic force is applied to the thin-walled portion 11T, and the magnet 71 of the inspection jig 70 is attached to the thin-walled portion 11T. Furthermore, by providing two or more thin-walled portions 11T, the magnet 71 of the inspection jig 70 can be stably attached. Therefore, it is possible to use (repurpose) a conventional inspection jig 70 while maintaining the strength of the insulating base 11. In other words, no new jigs or equipment are required. Therefore, it is possible to reduce manufacturing equipment costs.
[0037] In this embodiment, the distances D1 and D2 from the surface of the thin portion 11T to the magnetic box 12 are 2 mm or less. With this configuration, compared to when the distances D1, D2 from the surface of the thin-walled portion 11T to the magnetic box 12 exceed 2 mm, the magnetic force acts more effectively, causing the magnet 71 of the inspection jig 70 to attach to a part of the magnetic box 12. This is more suitable for using (reusing) a conventional inspection jig 70.
[0038] The magnetic box 12 of this embodiment has rising portions 12R1 and 12R2. The rising portions 12R1 and 12R2 are bent from a part of the magnetic box 12 and extend along the rear surface of the thin portion 11T. According to this configuration, a magnetic force is applied to the thin portion 11T of the insulating base 11, and the magnet 71 of the inspection jig 70 is attached to the rising portion 12R1. Therefore, even if the general surface of the insulating base 11 in the +Z direction is separated from the general surface of the magnetic box 12 in the +Z direction, the magnetic force can be applied. This is more suitable for using (reusing) a conventional inspection jig 70.
[0039] In this embodiment, the insulating base 11 is made of resin, and the magnetic box 12 is made of sheet metal. According to this configuration, a magnetic force acts on the thin-walled portion 11T of the resin insulating base 11, and the magnet 71 of the inspection jig 70 is attached to the rising portion 12R1 (a part of the sheet metal magnetic box 12). This is more suitable for molding the insulating base 11 and the magnetic box 12.
[0040] The insulating base 11 of this embodiment has fitting portions 31 and 32 into which parts of the terminal blocks 21 and 22 can be fitted. According to this configuration, parts of the terminal blocks 21 and 22, which are normally fixed with screws or the like, can be fitted into the fitting parts 31 and 32 of the insulating base 11, thereby reducing the number of screws (the number of fixing parts), and therefore reducing the cost of parts.
[0041] In this embodiment, a control unit 40 is provided as the electric component 20. The insulating base 11 has an opening 50 formed in the vicinity of the control unit 40. According to this configuration, the opening 50 can suppress a rise in temperature of the control unit 40 .
[0042] At least a portion of the opening 50 in this embodiment exposes a portion of the magnetic box 12 . According to this configuration, the exposed portion (through-hole 51) of the magnetic box 12 can improve the heat dissipation efficiency of the control unit 40.
[0043] At least a part of the opening 50 in this embodiment forms a flow path for allowing outside air to flow in and / or out. According to this configuration, the heat exhaust efficiency of the control unit 40 can be improved by the inflow and / or outflow of outside air.
[0044] The air conditioner 1 of this embodiment includes the above-described electric component box 10. According to this configuration, the manufacturing equipment costs for the air conditioner 1 can be reduced.
[0045] The indoor unit of the air conditioner 1 of this embodiment is equipped with the above-mentioned electric component box 10. According to this configuration, the manufacturing equipment costs for the indoor unit of the air conditioner 1 can be reduced.
[0046] Next, a modification of the embodiment will be described. In the embodiment, the distance from the surface of the thin portion to the magnetic box is 2 mm or less. However, the distance from the surface of the thin portion to the magnetic box may be more than 2 mm. The distance from the surface of the thin portion to the magnetic box can be changed depending on the design specifications, the magnetic force of the inspection jig, etc.
[0047] The magnetic box of the embodiment has a raised portion that is bent from a part of the magnetic box and fits along the back surface of the thin-walled portion. Alternatively, the magnetic box may not have a raised portion. For example, the magnet of the inspection jig may be attached only to the thin-walled portion where no raised portion is formed. The manner in which the raised portion is installed and / or the manner in which the magnet of the inspection jig is attached to the thin-walled portion can be changed according to the design specifications.
[0048] In the embodiment, the insulating base is made of resin, and the magnetic box is made of sheet metal. However, the insulating base does not have to be made of resin. The magnetic box does not have to be made of sheet metal. The manufacturing method (materials, etc.) of the insulating base and / or the magnetic box can be changed according to design specifications.
[0049] The insulating base in the embodiment has a fitting portion into which a portion of the terminal block can be fitted. However, the insulating base does not necessarily have to have a fitting portion into which a portion of the terminal block can be fitted. For example, the terminal block may be fixed to the insulating base only with fixing parts such as screws. The manner in which the terminal block is fixed can be changed according to design specifications.
[0050] In the embodiment, a control unit is provided as the electrical component, and the insulating base has an opening formed in the vicinity of the control unit. However, the insulating base does not necessarily have to have an opening formed in the vicinity of the control unit. The form of the opening can be changed according to design specifications.
[0051] At least a portion of the opening in the embodiment exposes a portion of the magnetic box. Alternatively, the opening may not expose a portion of the magnetic box near the control unit. The manner in which the opening exposes a portion of the magnetic box can be changed depending on design specifications.
[0052] At least a portion of the opening in the embodiment forms a flow path for the inflow and / or outflow of outside air. In contrast, the opening does not necessarily have to form a flow path for the inflow and / or outflow of outside air. The form of the flow path for the inflow and / or outflow of outside air can be changed depending on the design specifications.
[0053] The air conditioner in the embodiment is a ceiling-mounted air conditioner. However, the air conditioner does not have to be a ceiling-mounted air conditioner. For example, the air conditioner may be of other types, such as a ceiling-suspended type, a wall-mounted type, a ceiling-mounted duct type, or a built-in type. The type of air conditioner can be changed depending on the design specifications.
[0054] The electrical equipment box of the embodiment is applied to an indoor unit of an air conditioner. However, the electrical equipment box does not have to be applied to an indoor unit of an air conditioner. For example, the electrical equipment box may be applied to an outdoor unit of an air conditioner. The application mode of the electrical equipment box can be changed depending on the design specifications.
[0055] According to at least one of the embodiments described above, the insulating base has two or more thin-walled portions near the terminal block, thereby making it possible to provide an electrical component box that can reduce manufacturing equipment costs.
[0056] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents.
[0057] (Appendix 1) an insulating base on which electrical components and a terminal block constituting the air conditioner are mounted; a magnetic box formed of a magnetic material and covering the insulating base, the insulating base has two or more thin-walled portions near the terminal block; Electrical box. (Appendix 2) The distance from the surface of the thin portion to the magnetic box is 2 mm or less. An electrical equipment box as described in Appendix 1. (Appendix 3) the magnetic box has a rising portion that is bent from a part of the magnetic box and that extends along the back surface of the thin-walled portion; An electrical equipment box as described in Appendix 1 or 2. (Appendix 4) the insulating base is made of resin, The magnetic box is made of sheet metal. An electrical equipment box as described in any of appendices 1 to 3. (Appendix 5) The insulating base has a fitting portion into which a part of the terminal block can be fitted. An electrical equipment box as described in any of appendices 1 to 4. (Appendix 6) A control unit is provided as the electrical component, the insulating base has an opening formed in the vicinity of the control unit; 1. An electrical equipment box according to any one of appendices 1 to 5. (Appendix 7) At least a portion of the opening exposes a portion of the magnetic box. An electrical equipment box as described in Appendix 6. (Appendix 8) At least a portion of the opening constitutes a flow path for allowing outside air to flow in and / or out. 1. An electrical equipment box as described in appendix 6 or 7. (Appendix 9) The electrical equipment box according to any one of appendices 1 to 8 is provided. Air conditioner. (Appendix 10) The electrical equipment box according to any one of appendices 1 to 9 is provided. Air conditioner indoor unit. [Explanation of symbols]
[0058] 1...air conditioner, 2...indoor unit, 10...electrical component box, 11...insulating base, 11T...thin portion, 12...magnetic box, 12R1, 12R2...rising portion, 20...electrical component, 21...first terminal block (terminal block), 22...second terminal block (terminal block), 31...first mating portion (matting portion), 32...second mating portion (matting portion), 40...control unit, 50...opening, D1, D2...distance
Claims
1. an insulating base on which electrical components and a terminal block constituting the air conditioner are mounted; a magnetic box formed of a magnetic material and covering the insulating base, the insulating base has two or more thin-walled portions near the terminal block; Electrical box.
2. The distance from the surface of the thin portion to the magnetic box is 2 mm or less. The electrical component box according to claim 1.
3. the magnetic box has a rising portion that is bent from a part of the magnetic box and that extends along the back surface of the thin-walled portion; 3. The electrical component box according to claim 1 or 2.
4. the insulating base is made of resin, The magnetic box is made of sheet metal.
3. The electrical component box according to claim 1 or 2.
5. The insulating base has a fitting portion into which a part of the terminal block can be fitted.
3. The electrical component box according to claim 1 or 2.
6. A control unit is provided as the electrical component, the insulating base has an opening formed in the vicinity of the control unit; 3. The electrical component box according to claim 1 or 2.
7. At least a portion of the opening exposes a portion of the magnetic box.
7. The electrical component box according to claim 6.
8. At least a portion of the opening constitutes a flow path for allowing outside air to flow in and / or out.
7. The electrical component box according to claim 6.
9. The electrical component box according to claim 1 or 2 is provided. Air conditioner.
10. The electrical component box according to claim 1 or 2 is provided. Air conditioner indoor unit.
Citation Information
Patent Citations
Electrical equipment box, air conditioner, and indoor unit of air conditioner
JP6833108B2