JP5291388B2 - Control box and air conditioner outdoor unit - Google Patents

Description

  The present invention relates to a control box having a multilayer structure and an outdoor unit of an air conditioner equipped with the control box.

  In recent air conditioners, control boxes installed in outdoor units tend to become more complicated and larger in size due to multifunctional functions, electronic control, and inverters in compressors. This is because many of the boards such as control boards, inverter boards, electronic expansion valve boards, power modules, etc. are installed in the control box as the air conditioner becomes multifunctional, electronically controlled, and the compressors are converted to inverters. This is because parts and parts must be installed.

  On the other hand, the outdoor unit of an air conditioner has a high need for downsizing because there is a possibility that space for installation will be secured and there will be restrictions on carrying in during transportation. The downsizing of the outdoor unit and the complexity and enlargement of the control box are contradictory matters, and the downsizing of the control box is indispensable for downsizing the outdoor unit. Therefore, the control box has a multi-layered structure to satisfy the contradicting needs at the same time.

  When the control box has a multi-layer structure, it is necessary to remove the control box on the front side when it becomes necessary to maintain the boards and components provided in the control box on the back side, which makes maintenance difficult. Arise. In order to cope with such a problem, Patent Documents 1 to 3 show that a multi-layered substrate, a support plate, a control device accommodating portion and the like are installed so as to be openable and closable via a hinge to facilitate maintenance. Yes.

JP 58-116798 A Japanese Patent Laid-Open No. 11-155208 JP 2004-135373 A

  However, the above-described Patent Documents 1 to 3 do not consider any reduction in peripheral space required when opening and closing a substrate, a support plate, a control device accommodating portion, and the like installed so as to be openable and closable via a hinge. . In other words, the ones shown in Patent Documents 1 to 3 are configured such that the board, the support plate, the mounting bracket and bracket for supporting the control device, and the end in the thickness direction of the control box body are coupled by the hinge. Therefore, when the mounting bracket, bracket, and control box body are rotated around the rotation axis of the hinge, and the substrate, the support plate, and the control device accommodating part are opened and closed, as shown in FIG. 10, the locus indicated by A2 or A3 Will be opened and closed.

  This means that even if the control box is downsized due to the multi-layer structure, a large space for opening and closing the control box must be secured around it to avoid interference with peripheral devices. . Therefore, the space required for installation of the control box cannot be reduced as expected, and conventional control boxes do not fully utilize the advantages of downsizing due to the multilayer structure, and are installed in outdoor units of air conditioners, etc. It was not able to contribute enough to downsizing the equipment.

  The present invention has been made in view of such circumstances, and has a control box that is excellent in maintainability, can reduce the space required for installation, and can achieve downsizing of mounted equipment, and air conditioning using the control box It aims at providing the outdoor unit of a machine.

In order to solve the above problems, the control box and the air conditioner outdoor unit of the present invention employ the following means.
That is, in the control box according to the present invention, in the control box having a multilayer structure in which the control box is laminated in at least two layers, at least one of the control boxes laminated on the front side can be opened and closed by hinge connection, The rotation axis of the hinge connecting the control box is provided at a substantially middle position in the thickness direction of the control box.

  According to the present invention, at least one of the control boxes stacked on the front side of the control box having a multi-layer structure can be opened and closed by hinge coupling, and the rotation axis of the hinge coupling the control box is Since the control box is provided at a substantially middle position in the thickness direction of the control box, when maintaining the control boxes stacked on the back side, the maintenance can be performed by opening and closing the front control box to the front side. Therefore, it is not necessary to remove the control box on the front side every time maintenance is performed, so that maintainability such as easy access and shortening of the maintenance time can be improved. In addition, the front control box is rotated around the rotation axis of the hinge provided at a substantially middle position in the thickness direction, thereby minimizing the peripheral space required for opening and closing the front control box. be able to. Therefore, the space that must be secured for installing the control box can be reduced, and the mounted equipment can be made compact accordingly.

  Furthermore, the control box according to the present invention is characterized in that, in the control box described above, the control box that can be opened and closed by the hinge is provided with a wiring outlet on the surface side to which the hinge is coupled. And

  According to the present invention, the wiring take-out port is provided on the surface side to which the hinge of the control box that can be opened and closed by the hinge is coupled, so that the wiring is connected to the control box through the wire take-out port. Thus, when opening and closing the front control box during maintenance, it is possible to open and close the control box without disconnecting the wiring. Therefore, access can be facilitated and maintenance time can be further shortened, and the maintenance can be improved, for example, it is easy to identify the fault location because the circuit board and parts can be checked while the wiring is connected. be able to.

  Furthermore, the control box of the present invention is characterized in that, in any one of the above-described control boxes, the two control boxes stacked on the front side are integrally set and provided to be opened and closed. To do.

  According to the present invention, since the two control boxes stacked on the front side are integrally set and can be opened and closed, the two control boxes that are integrally set can be opened and closed simultaneously to open the third layer. The control box can be maintained, and the two front control boxes can be maintained from the front and back as required. Therefore, even when the control box has a multilayer structure of three or more layers, access can be facilitated and maintenance can be performed quickly and efficiently.

  In the control box of the present invention, in the control box described above, of the two control boxes that are integrally set, the rear control box has a lower height than the front control box. It is characterized by being.

  According to the present invention, since the height of the control box on the back side is lower than the height of the control box on the near side among the two control boxes that are integrally set, 2 Even if there is an assembly error or the like in one control box, the control box on the back side does not become an obstacle to rotation, and the two control boxes that are integrally set can be reliably rotated simultaneously to open and close. Therefore, the control box can be easily multi-layered and compact.

  Furthermore, the outdoor unit of the air conditioner according to the present invention is characterized in that any one of the above-mentioned control boxes is installed in a casing together with other outdoor devices.

  According to the present invention, since any one of the above-described control boxes is installed in the casing together with other outdoor devices, the maintainability of the outdoor unit at the time of failure is improved, and the maintenance is facilitated and speeded up. be able to. In addition, in the presence of the contradicting needs of control boxes that are becoming more complex and larger due to electronic control and multi-functionalization of air conditioners, and more compact to improve outdoor unit installation and transportability, the control box It is possible to minimize the occupied space in the housing necessary for installation. Thereby, the contradicting needs can be satisfied and the outdoor unit can be made compact.

  According to the control box of the present invention, when maintaining the control boxes stacked on the back side, the front side control box can be opened and closed to the front side for maintenance. Therefore, it is possible to improve maintainability such as easy access and shortening of maintenance time. In addition, the front control box is rotated around the rotation axis of the hinge provided at a substantially middle position in the thickness direction, thereby minimizing the peripheral space required for opening and closing the front control box. Therefore, the space that must be secured for installing the control box can be reduced, and the mounted equipment can be made compact accordingly.

  Moreover, according to the outdoor unit of the air conditioner of this invention, the maintainability of the outdoor unit at the time of a failure can be improved, and maintenance can be facilitated and speeded up. In addition, in the presence of the contradicting needs of control boxes that are becoming more complex and larger due to electronic control and multi-functionalization of air conditioners, and more compact to improve outdoor unit installation and transportability, the control box Since the space occupied in the housing necessary for installing the projector can be minimized, it is possible to satisfy the contradicting needs and to realize a compact outdoor unit.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
1 is a partial front view of an outdoor unit of an air conditioner equipped with a control box according to an embodiment of the present invention, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof. It is shown. The outdoor unit 1 of an air conditioner includes a housing 2 composed of a base plate 3, a side panel 4, and the like. In addition to the compressor 5, various outdoor devices (not shown) are accommodated and installed in the housing 2, and a control box 6 for controlling the air conditioner is accommodated and installed. FIG. 1 shows a state where a service panel (not shown) covering the front surface of the control box 6 is removed from the housing 2.

  The control box 6 is laminated in the three-layer structure of the first layer control box 10, the second layer control box 20, and the third layer control box 30 from the front side, and the base plate 3 and the side panel of the housing 2 are stacked. 4 is fixedly installed through a plurality of fixing screws 7. In the present embodiment, the control box 6 is installed with a narrow gap in the space between the side panel 4 and the compressor 5 installed on the base plate 3 (see FIGS. 1 and 3).

  As shown in FIGS. 7 to 9, the control box 6 has a structure in which the first layer control box 10, the second layer control box 20, and the third layer control box 30 are laminated and joined together. Yes. The configuration of the control box 6 having a three-layer structure will be described below with reference to FIGS.

  The first layer control box 10 includes a control board 11, and the control board 11 is fixed between a pair of left and right left panels 12 and right panels 13 by a plurality of screws 14 (see FIG. 1). . The second layer control box 20 provided on the back side of the first layer control box 10 is configured such that a noise filter 22, various relays 23, and the like are installed on a substrate 21. It is fixed between the right panel 13 and the lower panel 15.

  As described above, the first layer control box 10 and the second layer control box 20 are configured to be integrally set via the pair of left and right left panels 12, the right panel 13, and the lower panel 15. The control substrate 11 of the first layer control box 10 is exposed in the upper half portion. Further, main components such as a noise filter 22 and various relays 23 installed on the substrate 21 of the second layer control box 20 provided on the back side are in the lower half of the lower part of the control substrate 11 in front. It is set as the structure exposed to the side (refer also FIG. 1).

  The third-layer control box 30 includes an inverter substrate 31, a power module 32 (see FIG. 4), and the like, which are fixed in a box composed of left and right and upper and lower panels 33, 34, 35, and 36. It is supposed to be installed. The third layer control box 30 has a slightly larger vertical dimension than the first and second layer control boxes 10 and 20 and is extended downward. The upper panel 35 of the third layer control box 30 is extended to the near side and is sized to cover the upper portions of the first layer and the second layer control boxes 10 and 20 that are integrally set.

  The first layer and second layer control boxes 10, 20 that are integrally set are attached to a bracket 40 fixed to the right panel 34 side of the third layer control box 30 via a plurality of hinges 41. As shown in FIG. 4 to FIG. 6, the rotary shaft is coupled to be openable and closable within a range of about 90 °. This is to expose the inside of the third layer control box 30 during maintenance, and the other side of the first layer and the second layer control box 10, 20 that are integrally set is usually connected to the third layer control box. It is connected to 30 by screws 42 at a plurality of upper and lower positions.

  The hinge 41 has a thickness direction dimension (depth direction dimension) L of the first and second layer control boxes 10 and 20 that are integrally set, that is, a substantially intermediate position (L / In 2), the first layer and second layer control boxes 10 and 20 that are integrally set are coupled to the bracket 40. As shown in FIG. 10, the rotation axis 41A of the hinge 41 is set to 1/2 of the thickness direction dimension (depth direction dimension) L of the set first layer and second layer control boxes 10 and 20. This is because the peripheral space necessary for opening and closing the set first and second layer control boxes 10 and 20 is minimized.

  That is, in order to open and close the set first layer and second layer control boxes 10 and 20 having the thickness dimension L without interfering with other devices (here, the compressor 5 and the side panel 4), It is necessary to secure a space for opening and closing around it, and this space determines the size of the installation space of the control box 6 and directly affects the downsizing of the outdoor unit 2. By providing the rotation shaft 41A of the hinge 41 at a half position of the dimension L in the thickness direction, as shown in FIG. 10, the opening / closing locus of the set first layer and second layer control boxes 10, 20 becomes A1, Compared to the locus A2 or A3 when the rotation shaft 41A is provided at the front end or rear end in the thickness direction, the space on the front side, the left and right sides, etc. can be reduced.

  FIGS. 4 to 6 show a front view, a right side view, and a plan view of the first and second layer control boxes 10 and 20 which are integrally set, opened about 90 °. In the drawing, with respect to the compressor 5 and the side panel 4, the first layer and the second layer control boxes 10 and 20 are made close to each other as long as they do not interfere with each other when opening and closing, while minimizing the space for opening and closing. The state which installed the 2nd layer control boxes 10 and 20 is shown.

  In addition, a signal line connected to the first layer control box 10 and the second layer control box 20 is provided on the right panel 13 constituting the first layer and second layer control boxes 10 and 20 that are integrally set. A plurality of wiring outlets 43 for taking out wiring such as electric wires are provided. Grommets 44 are provided at the wiring outlets 43. The wiring outlet 43 is provided on the right panel 13 even if the first layer and the second layer control boxes 10 and 20 are rotated around the rotating shaft 41A of the hinge 41 and opened and closed with the wiring connected. This prevents the rotation from hindering rotation.

  Further, of the first layer and second layer control boxes 10, 20 that are integrally set, the second layer control box 20 located on the back side has the height of the substrate 21 and the left and right panels 12, 13. Step portions 45 and 46 are respectively provided so that the height of the portion corresponding to the second layer control box 20 is lower than the upper end of the first layer control box 10. Even if there is an assembly error or the like when assembling the first layer and the second layer control boxes 10 and 20 that are integrally set, the second layer control box 20 located on the back side This is to prevent interference with the upper panel 35 and the like of the third layer control box 30 to be covered and not affect the rotation at the time of opening and closing.

With the configuration described above, according to the present embodiment, the following operational effects can be obtained.
In the outdoor unit 1 and the control box 6 described above, for maintenance at the time of failure, first, a service panel (not shown) in the housing 2 of the outdoor unit 1 is removed. As a result, the control box 6 is exposed as shown in FIG. In this state, the control board 11 of the first layer control box 10 is exposed in the upper half of the control board 11, and the main components such as the noise filter 22 and various relays 23 provided on the board 21 of the second layer control box 20 are provided. The component is exposed in the lower half of the lower side of the control board 11.

  Therefore, the first layer and the second layer control boxes 10 and 20 that are integrally set can be accessed and maintained from the front side in the above state. If necessary, the first-layer and second-layer control boxes 10 and 20 can be opened by 90 ° as described below, and can be accessed and maintained from both the front and back sides.

  On the other hand, the third layer control box 30 at the innermost side cannot be directly accessed because the first layer and the second layer control boxes 10 and 20 are laminated on the front side. When maintaining the third layer control box 30, the first layer and the second layer control boxes 10, 20 are removed from the screws 42 connected to the third layer control box 30, and then the rotating shaft 41 </ b> A of the hinge 41. Rotate around. As a result, the first and second layer control boxes 10 and 20 are opened by about 90 ° without being interfered by other parts or devices, as shown in FIGS.

  FIG. 4 shows a front view of the first and second layer control boxes 10 and 20 opened by about 90 °. As a result, the inverter board 31 and the power module 32 provided in the third layer control box 30 are exposed to the front side. In this state, the third layer control box 30 can be maintained by accessing from the front side. It can be carried out.

  Thus, according to the present embodiment, when maintaining the third layer control box 30 stacked on the back side, the first layer and the second layer control boxes 10 and 20 on the front side are opened and closed on the front side. Can be maintained. Therefore, it is not necessary to remove the first-layer and second-layer control boxes 10 and 20 on the front side every time maintenance is performed, and maintenance of the control box 6 and the outdoor unit 1 at the time of failure such as easy access and shortening of the maintenance time. Can be improved, and maintenance can be facilitated and speeded up.

  Further, since the first and second layer control boxes 10 and 20 on the near side are rotated around the rotation axis 41A of the hinge 41 provided at a substantially intermediate position in the thickness direction dimension L, FIG. As shown, the peripheral space required to open and close the first and second layer control boxes 10 and 20 on the near side can be minimized. Therefore, the installation space that must be secured when installing the control box 6 can be reduced, and the mounted equipment can be made compact accordingly. In other words, in the presence of contradictory needs such as the complexity and size of the control box 6 associated with the electronic control and multi-functionalization of the air conditioner, and the downsizing of the outdoor unit 1 for ease of installation and transport, The occupied space in the housing | casing 2 required for installation of the box 6 can be minimized, the contradicting needs can be satisfied, and the downsizing of the outdoor unit 1 can be realized.

  Further, for the first and second layer control boxes 10 and 20 that can be opened and closed by the hinge 41, a wiring outlet 43 is provided in the right panel 13 on the hinged side, and the wiring outlet 43 Since signal lines, electric wires, etc. are connected to the first layer and the second layer control boxes 10 and 20 via the first and second layer control boxes 10 and 20, when opening and closing the first layer and the second layer control boxes 10 and 20 on the near side during maintenance The first layer and the second layer control boxes 10 and 20 can be opened and closed while being connected without removing the wiring. As a result, access can be facilitated and maintenance time can be further shortened, and the circuit board and parts can be checked in the energized state with the wires connected. Can be improved.

  Furthermore, since the first layer and the second layer control boxes 10 and 20 stacked on the front side are integrally set and can be opened and closed, the first layer and the second layer control box which are integrally set The third layer control box 30 can be maintained by opening and closing 10 and 20 at the same time, and the first and second layer control boxes 10 and 20 on the front side can be maintained from both the front and back sides as necessary. . Thereby, even when the control box 6 has a multilayer structure of three or more layers, access can be facilitated, and maintenance can be performed quickly and efficiently.

  Of the first layer and second layer control boxes 10, 20 that are integrally set, the second layer control box 20 on the back side has a step 45, a portion corresponding to the left and right panels 13, 14 and the substrate 21. 46, and the height thereof is lowered, so that even if there is an assembly error in the first layer and the second layer control boxes 10 and 20 that are integrally set, the second layer control box on the back side There is no hindrance to rotation, and the two control boxes 10 and 20 in the first layer and the second layer that are set can be reliably rotated simultaneously to open and close. Therefore, the control box 6 can be easily formed in a multilayer structure and can be made compact.

  In addition, this invention is not limited to the invention concerning the said embodiment, In the range which does not deviate from the summary, it can change suitably. For example, although the control box 6 having a three-layer structure has been described in the above embodiment, the present invention can be similarly applied to a control box having a multilayer structure of two layers or four layers or more. In addition, which layer of the control box can be opened and closed may be appropriately selected according to the arrangement configuration of the boards and components provided in each control box. Therefore, the present invention is not limited to the first layer control box 10 and the second layer control box 20 that are integrally set as in the above embodiment.

  Furthermore, the surface on which the wiring outlet 43 is provided is not necessarily the same surface as the right panel 13 to which the hinge 41 is coupled, and may be provided so as to cover the surface adjacent to the panel surface. Of course. Moreover, the installation position of the control box 6 does not need to be between the compressor 5 and the side panel 4 in the housing | casing 2, and may be arbitrary positions. Furthermore, it goes without saying that the control box of the present invention can be applied not only to an outdoor unit of an air conditioner but also to a control box of another device.

It is a partial front view of the outdoor unit of the air conditioner carrying the control box which concerns on one Embodiment of this invention. It is a right view of FIG. It is a top view of FIG. It is the front view of the state which opened the 1st layer and 2nd layer of the near side of a control box with the outdoor unit of the air conditioner shown in FIG. FIG. 5 is a right side view of FIG. 4. FIG. 5 is a plan view of FIG. 4. It is a perspective view of the control box shown in FIG. It is the perspective view seen from the left side surface of the state which opened the 1st layer and 2nd layer of the near side of the control box shown in FIG. It is the perspective view seen from the right side surface of the state which opened the 1st layer and 2nd layer of the near side of the control box shown in FIG. It is a model drawing showing the locus | trajectory at the time of opening and closing of the 1st layer and 2nd layer of the near side of the control box shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Housing | casing 5 Compressor 6 Control box 10 1st layer control box 12 Left panel 13 Right panel 20 2nd layer control box 30 3rd layer control box 41 Hinge 41A Rotating shaft 43 Wiring extraction ports 45 and 46 Step part L Thickness direction dimension

Claims (5)

In a control box having a multilayer structure in which at least two control boxes are laminated,
At least one of the control boxes stacked on the front side can be opened and closed by hinge connection, and the rotation axis of the hinge connecting the control box is provided at a substantially middle position in the thickness direction of the control box. A control box characterized by   2. The control box according to claim 1, wherein the control box that can be opened and closed by the hinge is provided with a wiring outlet on a surface side to which the hinge is coupled.   3. The control box according to claim 1, wherein the two control boxes stacked on the front side are integrally set so as to be openable and closable. 4.   4. The control box according to claim 3, wherein, of the two control boxes that are integrally set as described above, the control box on the back side has a lower height than the control box on the front side. An outdoor unit for an air conditioner, wherein the control box according to any one of claims 1 to 4 is installed in a casing together with other outdoor equipment.

Images