Housing unit for pedestal

Abstract

To provide a housing unit for a pedestal which can be used in common regardless of a frequency band.SOLUTION: A housing 2 of a pedestal in a radar device includes a main shaft 3 disposed at a predetermined position of the housing 2 and provided with a driven gear 4, and the housing 2 is formed to be capable of housing any one of an accommodation component for S band including a drive motor and a transmission / reception unit KU for S band and an accommodation component for X band including a drive motor and a transmission / reception unit KU for X band. The housing 2 and the main shaft 3 are formed so as to withstand any one of a load caused by the rotation of the S band antenna and a load caused by the rotation of the X band antenna.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a housing unit for a pedestal that can be used in a radar device. [Background technology]

[0002] Because the size of the antenna in a radar device varies depending on the frequency band (S-band or X-band), the pedestal structure had to be designed accordingly. That is, the pedestal housing is equipped with a drive motor, a drive gear attached to the drive motor, a main shaft, a driven gear attached to the main shaft, a transmitter / receiver unit, etc. (See, for example, Patent Document 1), and the shape, dimensions, and layout of these components had to be designed separately for each model. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-81856 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, conventionally, the need to design the pedestal side for each frequency band has led to the following problems and issues. Specifically, the structure and layout of the drive motor, transceiver unit, etc. differ depending on the model, making maintenance and inspection difficult to perform, and the large number of different parts required time and money for design, development, and production. Furthermore, the appearance (shape, size) of the housing differs for each model, resulting in a lack of uniformity when multiple models are lined up, which mars the aesthetics. Against this background, the inventors have come to believe that a technology that allows for commonality and sharing regardless of frequency band is desirable.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a pedestal housing unit that can be used in common regardless of the frequency band. [Means for solving the problem]

[0006] In order to solve the above problem, the invention described in claim 1 is a housing unit for a pedestal, comprising: a housing for a pedestal in a radar device; and a main shaft supported by a support provided at a predetermined position on the housing and having a driven gear, wherein the housing is formed to be able to accommodate either a first frequency band housing component including a drive motor and a transceiver unit for a first frequency band, or a second frequency band housing component including a drive motor and a transceiver unit for a second frequency band, and the housing and the main shaft are formed to withstand either a load caused by the rotation of an antenna for the first frequency band or a load caused by the rotation of an antenna for the second frequency band.

[0007] The invention described in claim 2 is characterized in that, in the pedestal housing unit described in claim 1, the main shaft is formed with an accommodating hole capable of accommodating any one of a rotary joint for a first frequency band and a rotary joint for a second frequency band.

[0008] The invention described in claim 3 is characterized in that, in the pedestal housing unit described in claim 1 or 2, the housing has a motor housing space provided at a predetermined position that can house either a drive motor for a first frequency band or a drive motor for a second frequency band.

[0009] The invention described in claim 4 is characterized in that, in the pedestal housing unit described in claim 1, the housing comprises a roughly square cylindrical housing body and a cover for opening and closing both openings of the housing body, reinforcing ribs extending in the vertical direction are provided on both side walls of the housing body, and reinforcing columns extending in the vertical direction are provided around the pivot support part of the housing body.

[0010] The invention described in claim 5 is characterized in that, in the pedestal housing unit described in claim 4, the reinforcing column is formed in the shape of a partition box, and electronic components can be accommodated within the partition space.

[0011] The invention described in claim 6 is characterized in that, in the pedestal housing unit described in claim 4, the reinforcing column is formed in the shape of a partition box, and electronic components can be arranged on the side opposite the opening of the partition.

[0012] The invention described in claim 7 is characterized in that, in the pedestal housing unit described in claim 5 or 6, the reinforcing rib is formed so as not to have an undercut in the opening direction of the housing main body, and the opening of the partition of the reinforcing column extends in the opening direction of the housing main body. [Effects of the Invention]

[0013] According to the invention recited in claim 1, the housing is formed to be able to accommodate either the first frequency band housing component or the second frequency band housing component, so the same housing can be used regardless of whether the frequency band is the first frequency band or the second frequency band. Furthermore, the housing and main shaft are formed to withstand the loads caused by the rotation of either the first frequency band antenna or the second frequency band antenna, so the same housing and main shaft can be used regardless of whether the frequency band is the first frequency band or the second frequency band. In this way, the same pedestal housing unit can be used in common regardless of the frequency band.

[0014] As a result, it is possible to reduce the number of different parts and the time and cost required for design, development, and production.In addition, because the exterior appearance (shape and size) of the housing is the same, it is possible to maintain and improve the aesthetic appearance by creating a sense of unity even when multiple radar devices of different models and frequency bands are lined up.

[0015] According to the invention described in claim 2, the main shaft is formed with an accommodating hole that can accommodate either a rotary joint for the first frequency band or a rotary joint for the second frequency band, so the same main shaft can be used even if the rotary joint differs depending on the frequency band. As a result, it is possible to reduce the number of types of parts and cut the time and cost required for design, development, and production.

[0016] According to the invention described in claim 3, a motor housing space capable of housing either a drive motor for the first frequency band or a drive motor for the second frequency band is provided in a predetermined position in the housing, so even if the drive motor differs depending on the frequency band, it is possible to house the drive motor in the same position. As a result, even if the model and frequency band are different, the layout of the drive motor and other parts (transmitter / receiver unit, etc.) can be made the same, improving the workability of maintenance and inspection.

[0017] According to the invention of claim 4, since reinforcing ribs are provided on both side walls of the housing body, the housing body is reinforced, and it is possible to ensure the necessary strength and rigidity regardless of whether the frequency band is the first frequency band or the second frequency band. Moreover, since reinforcing columns are provided around the support part, the support part is reinforced, and it is possible to properly support the main shaft regardless of whether the antenna attached to the main shaft is for the first frequency band or the second frequency band. Furthermore, since the housing body is reinforced with reinforcing ribs and reinforcing columns, it is possible to make the housing body thinner.

[0018] According to the invention described in claim 5, electronic components can be accommodated within the partition space of the reinforcing column formed in the shape of a partition box, making it possible to reduce (confine) electromagnetic noise generated from the electronic components by the partition.

[0019] According to the invention described in claim 6, electronic components can be arranged on the side opposite the opening (back side) of the reinforcing column formed in the shape of a partition box, so that the partition functions as a heat dissipation fin, making it possible to dissipate and release heat generated by the electronic components.

[0020] According to the invention of claim 7, the reinforcing ribs are formed so as to avoid undercuts in the opening direction of the housing body, and further, the partition openings of the reinforcing columns are formed extending in the opening direction of the housing body, so that the housing body can be molded without undercuts even if the reinforcing ribs and reinforcing columns are present. As a result, it becomes possible to produce the housing body using a mold manufacturing method such as die casting or gravity casting, which enables efficient production and low costs. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic perspective view showing a radar device configured using a pedestal housing unit in accordance with Embodiment 1 of the present invention; [Figure 2] 2A is a front view of the radar device of FIG. 1, FIG. 2B is a right side view, FIG. 2C is a left side view, and FIG. 2D is a plan view. [Figure 3] 2A is a front view, FIG. 2B is a right side view, and FIG. 2C is a left side view of the pedestal housing unit of FIG. 1 with the cover removed. [Figure 4] FIG. 3 is a cross-sectional view taken along line AA of the front view of FIG. 2. [Figure 5] FIG. 3 is a cross-sectional view taken along the line BB in the front view of FIG. 2. [Figure 6] FIG. 10 is a schematic perspective view showing a housing of a pedestal housing unit in accordance with a second embodiment of the present invention. [Figure 7] 7A is a front view showing the housing main body of the housing of FIG. 6, and FIG. 7B is a left side view thereof. [Figure 8] 7A is a right side view showing the housing main body of the housing of FIG. 6, and FIG. 7B is a rear view. [Figure 9] 8 is a schematic front cross-sectional view showing a state before electronic components are mounted on the reinforcing columns of the housing body of FIG. 7. FIG. [Figure 10] 8 is a schematic front cross-sectional view showing a state in which electronic components are disposed on reinforcing columns of the housing main body of FIG. 7. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described below based on the illustrated embodiments.

[0023] (Embodiment 1) 1 to 5 show this embodiment, and Fig. 1 is a schematic perspective view showing a radar device configured with a pedestal housing unit 1 according to this embodiment, and Fig. 2 is a front view (a), a right side view (b), a left side view (c), and a plan view (d) of the radar device of Fig. 1. This pedestal housing unit 1 is a housing unit that can be used for radar devices of both S-band (first frequency band) and X-band (second frequency band), and although this embodiment will be described in the case of a radar device for a ship, other radar devices may also be used.

[0024] Here, the radar device is primarily composed of an antenna AT and a pedestal P that supports and places the antenna AT so that it can rotate freely. Since the wavelength of S-band waves is long, at approximately 10 cm, the antenna AT is large, while the wavelength of X-band waves is short, at approximately 3 cm, the antenna AT is small. Furthermore, the pedestal P generally includes an antenna support AS, a drive motor M, a drive gear MG attached to the drive motor M, a main shaft 3, a driven gear 4 attached to the main shaft 3, a rotary joint RJ, an onboard unit (transmitting / receiving unit) KU, and the like, as well as a housing 2 that houses and accommodates these components.

[0025] The pedestal housing unit 1 has a platform structure that is already equipped with the housing 2, main shaft 3, and driven gear 4 that make up the pedestal P, and by selecting, designing, and assembling the antenna AT, antenna support AS, drive motor M, rotary joint RJ, onboard unit KU, etc. according to the frequency band (S band or X band), the desired radar device can be configured and formed. Specifically, it has the following configuration.

[0026] 3, the housing 2 is a box-like body with covers 21 attached to both openings of a substantially square cylindrical housing main body 22, and is configured to be able to accommodate either an S-band housing component including an S-band drive motor M and on-board unit KU, or an X-band housing component including an X-band drive motor M and on-board unit KU. In other words, the volume and shape are set so that either an S-band housing component or an X-band housing component can be accommodated.

[0027] As shown in FIGS. 4 and 5, a main shaft 3 for rotating the antenna AT is disposed at a predetermined position (approximately at the center on a plane) in the main housing body 22 of the housing 2. That is, a support portion 23 for rotatably supporting the lower end of the main shaft 3 is formed at a predetermined position within the main housing body 22, and the main shaft 3 is attached to the support portion 23, penetrating the upper surface (ceiling) of the main housing body 22. A driven gear 4 is attached to the main shaft 3 at a predetermined position and height, and the support portion 23 is formed to surround a portion of the driven gear 4 (excluding the portion that meshes with the drive gear MG, described later). Meanwhile, a flange 31 is provided at the upper end of the main shaft 3, and the flange 31 and the upper end of the main shaft 3 protrude from the upper surface of the main housing body 22. The upper end of the main shaft 3 is rotatably supported by an upper support block 24 provided on the upper surface of the main housing body 22. The upper support block 24 may be provided separately from the housing body 22 or may be provided integrally therewith.

[0028] Here, the positions and shapes of the main shaft 3, driven gear 4, and support portion 23 are set so that the drive motor M, on-board unit KU, etc. can be efficiently accommodated in other space (surplus space) within the housing main body 22. With the main shaft 3, driven gear 4, and support portion 23 arranged and formed in this manner, a motor accommodating space 20 capable of accommodating either the drive motor M for S band or the drive motor M for X band is provided at a predetermined position.

[0029] That is, as shown in Figures 3 and 5, a motor accommodating space 20 is provided on the port side (the left side in the bow direction, on one side separated laterally by the main shaft 3) centered on the main shaft 3 and driven gear 4. The volume and shape of this motor accommodating space 20 are set so that either the S-band drive motor M or the X-band drive motor M can be properly accommodated and arranged without a large gap.

[0030] As a result, regardless of the frequency band (S-band or X-band), the drive motor M is housed on the port side of the main shaft 3, and the onboard unit KU is housed on the starboard side (the other side separated laterally by the main shaft 3). In other words, the layout inside the housing 2 is approximately the same for the S-band and the X-band. By arranging the drive motor M in the motor housing space 20, the drive gear MG provided on the output shaft of the drive motor M is meshed with the driven gear 4. Furthermore, the housing main body 22 is formed with a plurality of cable holes 25 for pulling out equipment cables SC from the onboard unit KU and the like to the outside.

[0031] Furthermore, the housing 2 and main shaft 3 are formed to withstand either the load caused by the rotation of the S-band antenna AT or the load caused by the rotation of the X-band antenna AT. In other words, the strength and rigidity (specifically, material, thickness, shape, etc.) of the housing 2, main shaft 3, and driven gear 4 are set so that they can withstand the load caused by rotation regardless of whether the S-band antenna AT or the X-band antenna AT is attached and rotating.

[0032] 4 and 5, the main shaft 3 is formed with an accommodating hole 3a capable of accommodating either an S-band rotary joint RJ or an X-band rotary joint RJ. That is, the main shaft 3 is formed with an accommodating hole 3a that penetrates along the axis, and the size and shape of the accommodating hole 3a are set so that either an S-band rotary joint RJ or an X-band rotary joint RJ can be inserted, accommodated, and mounted.

[0033] Furthermore, either an S-band antenna support AS or an X-band antenna support AS can be placed on the upper side of the housing main body 22 and the upper side of the main shaft 3. That is, bolt holes (screw holes) are formed in the upper surface of the upper support block 24 and the upper surface of the flange portion 31 of the main shaft 3 so as to match the bolt insertion holes formed in both the S-band antenna support AS and the X-band antenna support AS, allowing either antenna support AS to be fastened with a bolt.

[0034] As described above, according to this pedestal housing unit 1, the housing 2 is formed so that it can accommodate either S-band housing components or X-band housing components, making it possible to use the same housing 2 regardless of whether the frequency band is S-band or X-band. Also, the housing 2, main shaft 3, and driven gear 4 are formed so that they can withstand the load caused by the rotation of either the S-band antenna AT or the X-band antenna AT, making it possible to use the same housing 2, main shaft 3, and driven gear 4 regardless of whether the frequency band is S-band or X-band. In this way, it is possible to use the same pedestal housing unit 1 in common regardless of the frequency band.

[0035] Moreover, the main shaft 3 is formed with an accommodating hole 3a that can accommodate either an S-band rotary joint RJ or an X-band rotary joint RJ. This makes it possible to use the same main shaft 3 even if the rotary joint RJ differs depending on the frequency band.

[0036] As a result, it is possible to reduce the number of different parts and the time and cost required for design, development, and production.In addition, because the appearance (shape and size) of the housing 2 is the same, it is possible to maintain and improve the aesthetic appearance with a sense of unity even when multiple radar devices of different models and frequency bands are lined up.

[0037] Furthermore, because a motor housing space 20 capable of housing either the S-band drive motor M or the X-band drive motor M is provided at a predetermined position in the housing 2, it is possible to house the drive motor M in the same position even if the drive motor M differs depending on the frequency band. As a result, even if the model and frequency band are different, the arrangement and layout of the drive motor M and other parts (such as the on-board unit KU) can be made equivalent, improving workability during maintenance and inspection.

[0038] (Embodiment 2) 6 to 10 show this embodiment, and Fig. 6 is a schematic perspective view showing the housing 2 of the pedestal housing unit according to this embodiment. This embodiment differs from the first embodiment in that the housing main body 22 is reinforced, and the same components as those in the first embodiment are denoted by the same reference numerals and will not be described again.

[0039] In this embodiment, the housing body 22 is provided with reinforcing ribs 26 and reinforcing columns 27, as shown in FIGS.

[0040] The reinforcing ribs 26 are provided on the inner surfaces of both side walls 22c of the housing body 22, and are ribs that extend in the vertical direction from the ceiling 22a to the floor 22b, and are formed so as not to cause any undercuts in the opening direction of the housing body 22. That is, the reinforcing ribs 26 are formed so as to protrude from one side wall 22c toward the other side wall 22c, and are formed so that the mold can be opened and closed in the opening direction of the housing body 22 (the direction in which the opening extends) (so that no part cannot be released from the mold).

[0041] The reinforcing columns 27 are provided around the pivotal portion 23 of the housing main body 22, are columnar bodies extending vertically from the ceiling 22a to the floor 22b, and are formed in the shape of a partition box. That is, they are provided adjacent to the pivotal portion 23 on the port side and the starboard side, respectively, and are partition box-shaped with an opening on the cover 21 side. Here, the partition box shape refers to a configuration in which plate-like partitions 27a are continuously arranged in a square lattice pattern (a partitioned drawer shape), and a plate-like back surface portion 27b is provided on the pivotal portion 23 side (the side opposite the cover 21) as shown in Figures 9 and 10.

[0042] The opening formed by the partition 27a extends in the same direction as the opening direction of the housing body 22. Therefore, by opening and closing the mold in the opening direction of the housing body 22, the partition 27a can also be molded (without undercuts).

[0043] 9 and 10, an electronic component EP can be accommodated in the opening of the partition 27a of the reinforcing column 27, and the electronic component EP can be disposed on the back surface 27b (opposite the opening) of the reinforcing column 27. That is, a plurality of screw holes are formed in the opening end surface (the surface opposite the back surface 27b) of the reinforcing column 27. Then, the electronic component EP mounted on a printed circuit board PCB or the like is placed facing the opening of the partition 27a, and the printed circuit board PCB or the like is screwed to the opening end surface of the reinforcing column 27, thereby accommodating the electronic component EP in the space of the partition 27a. Here, the size and arrangement of the partition 27a are set so that the electronic component EP can be accommodated.

[0044] A plurality of screw holes are also formed in the rear surface portion 27b of the reinforcing column 27. Then, the rear surface side (the side opposite the electronic component EP) of a printed circuit board PCB or the like carrying an electronic component EP faces the rear surface portion 27b of the reinforcing column 27, and the printed circuit board PCB or the like is screwed to the rear surface portion 27b of the reinforcing column 27, thereby enabling the electronic component EP to be disposed on the rear surface portion 27b. At this time, by screwing the printed circuit board PCB or the like (by selecting the screw holes) so that the partitions 27a are positioned on the rear surface side of the electronic component EP, the partitions 27a efficiently function as heat dissipation fins.

[0045] Thus, according to this embodiment, since reinforcing ribs 26 are provided on both side walls 22c of housing body 22, housing body 22 is reinforced, and it is possible to ensure the necessary strength and rigidity regardless of whether the frequency band is S band or X band. Moreover, since reinforcing columns 27 are provided around support portion 23, support portion 23 is reinforced, and it is possible to properly support main shaft 3 regardless of whether antenna AT attached to main shaft 3 is for S band or X band. Furthermore, since housing body 22 is reinforced by reinforcing ribs 26 and reinforcing columns 27, it is possible to make housing body 22 and cover 21 thinner.

[0046] Moreover, since the electronic components EP can be housed within the spaces of the partitions 27a of the reinforcing columns 27 formed in a partition box shape, it is possible to reduce (confine) electromagnetic noise generated from the electronic components EP by the partitions 27a. Furthermore, since the electronic components EP can be disposed on the back surfaces 27b of the reinforcing columns 27 formed in a partition box shape, the partitions 27a function as heat dissipation fins, making it possible to dissipate and release heat generated from the electronic components EP.

[0047] Furthermore, the reinforcing ribs 26 are formed so as to prevent undercuts in the opening direction of the housing body 22, and furthermore, openings of the partitions 27a of the reinforcing columns 27 are formed extending in the opening direction of the housing body 22, so that the housing body 22 can be molded without undercuts even with the reinforcing ribs 26 and the reinforcing columns 27. As a result, it becomes possible to produce the housing body 22 by a manufacturing method using a mold, such as die-casting or gravity casting (gravity mold casting), which enables efficient production and low costs.

[0048] Although the embodiments of the present invention have been described above, the specific configuration is not limited to the above-described embodiments, and the present invention also includes design changes within the scope of the present invention. For example, in the above-described embodiment, the drive motor M is disposed on the port side of the pivot support portion 23, and the onboard unit KU is disposed on the starboard side. However, other arrangements may be used as long as the arrangement and layout are equivalent regardless of the frequency band (S-band or X-band). Furthermore, although the case where the first frequency band is S-band and the second frequency band is X-band has been described, other frequency bands may also be used. [Explanation of symbols]

[0049] 1 Pedestal housing unit 2. Case 20 Motor storage space 23 Axis Support Portion (Axis Support) 24 Upper support block 26 Reinforcing rib 27 Reinforcement pillar 27a Partition 27b Back part 3 main axis 3a Receiving hole 4 Driven gear AT Antenna P pedestal AS Antenna Support M drive motor MG drive gear RJ rotary joint KU onboard unit (transmitting / receiving unit)

Claims

1. a housing of a pedestal in the radar device; a main shaft supported by a support portion provided at a predetermined position of the housing and having a driven gear provided thereon; the housing is formed to be able to accommodate either a first frequency band housing component including a drive motor and a transceiver unit for a first frequency band, or a second frequency band housing component including a drive motor and a transceiver unit for a second frequency band, the housing and the main shaft are formed to be able to withstand any one of a load caused by rotation of an antenna for a first frequency band and a load caused by rotation of an antenna for a second frequency band; A housing unit for a pedestal.

2. an accommodating hole capable of accommodating any one of a rotary joint for a first frequency band and a rotary joint for a second frequency band is formed in the main shaft; 2. The pedestal housing unit according to claim 1.

3. a motor accommodating space capable of accommodating either a drive motor for a first frequency band or a drive motor for a second frequency band is provided at a predetermined position in the housing; 3. The pedestal housing unit according to claim 1, wherein the pedestal housing unit is a housing unit for a pedestal.

4. The housing includes a substantially square cylindrical housing body and a cover for opening and closing both openings of the housing body, Reinforcing ribs extending in the vertical direction are provided on both side walls of the housing body, and reinforcing columns extending in the vertical direction are provided around the pivot support portion of the housing body.

2. The pedestal housing unit according to claim 1.

5. The reinforcing column is formed in a partition box shape, and electronic components can be accommodated in the partition space.

5. The pedestal housing unit according to claim 4.

6. The reinforcing column is formed in a partition box shape, and electronic components can be disposed on the side opposite the opening of the partition.

5. The pedestal housing unit according to claim 4.

7. The reinforcing rib is formed so as not to have an undercut in the opening direction of the housing body, The opening of the partition of the reinforcing column extends in the direction of the opening of the housing main body.

7. The pedestal housing unit according to claim 5 or 6.

Images