JP6029648B2 - Portable ultrasonic diagnostic apparatus and battery thereof - Google Patents

Description

  The present invention relates to a portable ultrasonic diagnostic apparatus, and more particularly to a portable ultrasonic diagnostic apparatus having an apparatus cooling system.

  As a conventional ultrasonic diagnostic apparatus, a wagon type in which various apparatuses are mounted on a movable carriage is the mainstream. Portable ultrasonic diagnostic devices with excellent portability are also available on the market as ultrasonic diagnostic devices. For example, a portable ultrasonic diagnostic apparatus called a notebook type includes a thin main body and a display unit, and the display unit has a structure that can be folded on the main body as a lid.

  According to the safety standard IEC60601-1 for medical electrical equipment, the maximum allowable temperature at the contact part of ME equipment that may be in contact with the subject is 48 ° C (when touching for more than 1 minute). Cooling is required.

  The wagon type has a cooling system by mounting a heat sink on an electronic component (for example, CPU) that generates a large amount of heat, and mounting an exhaust fan. However, it is difficult to secure space in a portable ultrasonic diagnostic device. It is difficult to have a cooling system similar to the wagon type. That is, the portable ultrasonic diagnostic apparatus has a problem that the size of the ultrasonic diagnostic apparatus is larger than that of the wagon type, and the heat generating components cannot be easily cooled. Therefore, as in Patent Document 1, a proposal has been made to increase the cooling effect by securing a space in the housing by using a flexible substrate.

JP 2010-220 JP

  However, even when a flexible substrate is used, it is not possible to make all the substrates flexible. Therefore, the air flow path is not sufficiently secured, and the heat-generating component is not sufficiently cooled.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a portable ultrasonic diagnostic apparatus that can increase the cooling efficiency of a portable ultrasonic diagnostic apparatus that has large size and space restrictions and high substrate density.

  The portable ultrasonic diagnostic apparatus of the present invention includes a housing having a substrate therein, a battery that is housed in a battery housing portion provided in the housing and that supplies power to the substrate, and is provided in the battery housing portion, An intake opening for sucking air around the battery or the board heated by heat generated by the battery or the board; and an air around the battery or the board sucked from the intake opening. A flow path for guiding, and an exhaust opening for exhausting air around the battery or the substrate that has passed through the flow path.

  According to this configuration, by guiding the air from the exhaust port of the battery to the inside, it is possible to increase the cooling efficiency of the portable ultrasonic diagnostic apparatus with large size and space restrictions and high substrate density.

  INDUSTRIAL APPLICABILITY The present invention can increase the cooling efficiency of a portable ultrasonic diagnostic apparatus that has large size and space restrictions and high substrate density.

The front perspective view which looked at the portable ultrasonic diagnostic equipment concerning an embodiment of the invention from the front The figure which showed the state where the operation part and the display part were closed The front perspective view which looked at the battery accommodated in a battery accommodating part from the front Rear perspective view of portable ultrasound diagnostic device viewed from the rear Front perspective view of the main unit from the front The figure which showed the flow of the air in the battery accommodated in a battery accommodating part. A diagram showing the air flow in front of the main unit The figure which showed the air flow in the back of the main body Rear perspective view of the schematic internal structure of the main unit viewed from the rear Central cross-sectional view along the longitudinal direction of the main body The figure which shows that the main body is equipped with a plurality of substrates

Hereinafter, a portable ultrasonic diagnostic apparatus according to an embodiment of the present invention will be described with reference to the drawings.
The portable ultrasonic diagnostic apparatus of the present invention includes a main body housing 50 having a substrate therein, a battery 8 housed in a battery housing portion 51 provided in the housing 50 and supplying power to the substrate, and the battery housing An intake opening (first opening 15 and third opening) that is provided in the section 51 and sucks in air around the battery 8 or the board heated by the heat generated by the battery 8 or the board. Part 11), a flow path (first flow path 55, second flow path 56) for guiding the air around the battery 8 or the substrate sucked from the intake opening, and passes through the flow path And an exhaust opening (the second opening 10 and the fourth opening 12) for exhausting the air around the battery 8 or the substrate.

FIG. 1 is a front perspective view of the portable ultrasonic diagnostic apparatus 100 of the present embodiment as viewed from the front.
Specifically, as shown in FIG. 1, the portable ultrasonic diagnostic apparatus 100 includes a main body 1 having a substrate therein, an operation unit 2, and a display unit 3. The operation unit 2 gives various instructions to a board (control board) built in the main body 1 to operate the portable ultrasonic diagnostic apparatus 100. The board of the main body 1 is equipped with circuits such as a CPU, a power supply circuit, and a battery controller, and the ultrasonic transmissions transmitted from various ultrasonic probes connected to the probe connection unit 4 by the mounted circuits. A wave signal is generated and echo signals received from various ultrasonic probes are processed. In addition, the substrate displays an ultrasonic image on the display unit 3 by a mounted circuit.

  The operation unit 2 and the display unit 3 are connected to the main body 1 through a connection such as a universal joint (universal joint) or a hinge, and the operation unit 2 and the display unit 3 can be rotated or opened and closed by the universal joint or the hinge, respectively. It is. The operation unit 2 can be closed relative to the display unit 3 by a hinge, the portable ultrasonic diagnostic apparatus 100 can be folded compactly, and the portable ultrasonic diagnostic apparatus 100 can be easily carried. . Further, the display unit 3 can be freely adjusted in angle by a universal joint (connection unit), and can be maintained at an angle that is easy for the operator to see.

  FIG. 2 is a diagram showing a state in which the operation unit 2 and the display unit 3 are closed. In this way, the installation space can be reduced by flipping up the operation unit 2.

  As shown in FIG. 2, the main body 1 includes a housing 50 having a substrate inside, a battery housing portion 51 that houses a battery (battery pack) 8, and a probe connection portion 4 that connects an ultrasonic probe. Is provided. The battery 8 has a battery inlet 9 and allows air to pass through a part of the battery 8.

  The operation unit 2 includes an operation unit intake port 6 that intakes air to cool the inside of the operation unit 2 and an operation unit exhaust port 7 that exhausts intake air from the operation unit intake port 6. The operation unit intake port 6 is provided on the probe connection unit 4 side provided on the side of the housing 50. The operation unit exhaust port 7 is provided on the opposite side of the probe connection unit 4 so that the exhaust (hot air) from the operation unit intake port 6 does not directly hit the subject. According to this configuration, since the operation unit intake port 6 and the operation unit exhaust port 7 are provided in the operation unit 2, a flow path for cooling the inside of the operation unit 2 can be secured, and the portable ultrasonic diagnostic apparatus The cooling effect of 100 can be enhanced, and exhaust (hot air) can be prevented from directly hitting the subject. In addition, the operation unit 2 includes a fan 5 that generates an airflow of intake air from the operation unit intake port 6.

  FIG. 3 is a front perspective view of the battery 8 accommodated in the battery accommodating portion 51 as viewed from the front. The battery 8 includes a battery intake port 9 that intakes air into the battery 8, a battery exhaust port 19 that exhausts intake air from the battery intake port 9 as battery exhaust, and a power storage unit 20. The battery air inlet 9 is located in front of the battery 8 (front surface) in a state where the battery 8 is accommodated in the battery accommodating portion 51. The battery exhaust port 19 is located in the upper front portion of the battery 8 in a state where the battery 8 is housed in the battery housing portion 51. The plurality of battery intake ports 9 and the plurality of battery exhaust ports 19 are partitioned by a plurality of partition walls 21. Since the space is secured in front of the battery and in the upper front portion by the plurality of partition walls 21, the space surrounded by the plurality of partition walls 21 absorbs an impact such as a drop on the battery 8.

  For example, the power storage unit 20 and the circuit of the battery 8 are protected against the fall of the battery 8. According to this configuration, by providing the battery intake port 9 and the battery exhaust port 19 in the battery that has conventionally blocked the air flow path, the portable ultrasonic diagnostic device has a large size and space restrictions and a high density of the board. In addition, the cooling efficiency of the apparatus can be increased, and the impact on the battery can be absorbed by the space surrounded by the plurality of partition walls.

  FIG. 4 is a rear perspective view of the portable ultrasonic diagnostic apparatus 100 as seen from the rear. The main body 1 includes a housing 50 having a substrate inside, a battery housing 51 (FIG. 2) for housing the battery 8, a first opening (described later) provided in the battery housing 51, and a first opening The second opening 10 for exhausting the intake air from the air, the third opening 11 provided in the upper part (upper surface) of the housing 50, and the intake air from the third opening 11 provided behind the housing 50 And a side opening 13 provided on the side (side surface) opposite to the probe connection part 4 (FIG. 2).

  The side opening 13 is provided on the side (side surface) opposite to the probe connecting portion 4 (FIG. 2) so that the exhaust (hot air) does not directly hit the subject. The main body 1 also includes various interfaces 14 such as a USB port. According to this configuration, by securing a flow path from the side opening 13 to the second opening 10, a plurality of flow paths can be secured, and the cooling effect of the portable ultrasonic diagnostic device 100 can be increased. In addition, the exhaust gas (hot air) can be prevented from directly hitting the subject.

  FIG. 5 is a front perspective view of the main body 1 as viewed from the front. The main body 1 is provided with a probe connecting portion 4 for connecting an ultrasonic probe on the side (side surface) of the housing 50. A battery (battery pack) 8 is accommodated in a battery accommodating portion 51 provided in the lower front part of the housing 50. The battery air inlet 9 for taking in air is provided in the front lower part (dead space) of the housing 50. Therefore, when the state shown in FIG. 1 is established, the battery air inlet 9 becomes inconspicuous.

  The first opening 15 is provided in the battery housing 51 (in front of the housing 50) in order to take in the battery exhaust that has passed through a part of the battery 8. The first opening 15 is provided at a position facing the battery exhaust port 19 in a state where the battery 8 is housed in the battery housing 51. The first opening 15 is provided at the interface of a universal joint (connection part) 30 that connects the main body 1 and the display part 3. Further, in the case of the battery housing portion 51, the first opening portion 15 may be provided at an interface of a portion other than the universal joint (connection portion) 30 (for example, an upper portion or a rear portion of the battery housing portion 51).

Next, the flow of air (intake and exhaust) of the portable ultrasonic diagnostic apparatus 100 will be described.
As shown in FIG. 6, the air is sucked from the battery inlet 9, passes through a part of the battery 8, and is exhausted from the battery exhaust 19. The air passes through a part of the battery 8 to cool the battery 8.

  As shown in FIG. 7, the air exhausted from the battery exhaust port 19 is sucked from the first opening 15 and guided to the inside of the main body 1 (first flow path). The air sucked from the third opening 11 is exhausted from the fourth opening 12 after being guided to the inside of the main body 1 (second flow path). Note that the first flow path may be provided along the surface of the battery 8. Thereby, the cooling efficiency of the battery 8 is improved.

  As shown in FIG. 8, the air guided from the first opening 15 to the inside of the main body 1 (first flow path) is exhausted from the second opening 10 provided at the rear of the housing 50. The Air is sucked from the side opening 13, guided to the inside of the main body 1 (first flow path), and then exhausted from the second opening 10 provided behind the housing 50.

  Next, the flow path of air that is sucked and exhausted will be described. FIG. 9 is a rear perspective view of the schematic internal structure of the main body 1 as viewed from the rear. The housing 50 includes a housing rear portion 22, a housing upper portion 23, and a housing lower portion 24. The housing rear part 22 includes a second opening 10. The housing upper part 23 includes a third opening 11 and a fourth opening 12. The housing 50 includes the substrate 16 therein. The substrate 16 has a lower surface portion (first flat surface portion) 53 and an upper surface portion (second flat surface portion) 54. The substrate 16 is mounted with various circuits that realize the functions of the portable ultrasonic diagnostic apparatus 100.

  For example, the lower surface portion (first flat surface portion) 53 of the substrate 16 is mounted with a power supply unit, a power supply controller, and the like that are connected to the battery 8 and an external power supply to generate power for each unit. Further, the upper surface portion (second flat surface portion) 54 of the substrate 16 includes a signal control unit that controls an ultrasonic transmission / reception signal of the ultrasonic probe, and a calculation unit that calculates an ultrasonic image based on the ultrasonic reception signal. In addition, an I / O unit responsible for input / output control of the interface 14 is installed. Since FIG. 9 is a schematic diagram, components mounted on the board 16 are omitted, but many other circuit components (for example, CPU, resistors, capacitors, various digital ICs, LSIs, analog ICs) are omitted. Etc.) is mounted on the substrate 16 and is mounted with high density. FIG. 9 shows the CPU 29 as a component that generates a large amount of heat. Although not shown, the CPU 29 and the like are also mounted on the lower surface portion (first flat surface portion) 53 of the substrate 16.

  The portable ultrasonic diagnostic apparatus 100 includes a flow path (first flow path) 55 that guides intake air from the first opening 15 in order to cool the substrate 16. The flow path (first flow path) 55 is configured by a lower surface portion (first flat surface portion) 53 of the substrate 16 and guides intake air from the first opening 15 along the planar direction of the substrate 16. The second opening 10 exhausts the intake air that has passed through the flow path (first flow path) 55. According to this configuration, since the flow path is configured by the lower surface portion 53 of the substrate 16, a portion that was a dead space can be used as the flow path.

  The portable ultrasonic diagnostic apparatus 100 includes a first fan 18 that generates an intake airflow from the first opening 15, and a second fan 17 that generates an intake airflow from the third opening 11. Is provided. According to this configuration, the first fan 18 generates an air flow of intake air, so that the flow of air passing through the first flow path 55 can be promoted, and the second fan 17 generates an air flow of intake air. By doing so, the flow of air passing through the inside of the main body 1 can be promoted, and the cooling effect of the portable ultrasonic diagnostic apparatus 100 can be enhanced.

  In a state where the battery 8 is housed in the battery housing portion 51, the battery air inlet 9 is located in front of the housing 50, and the second opening 10 is located behind the housing 50. According to this configuration, since air linearly passes from the battery inlet 9 to the second opening 10, the cooling effect of the portable ultrasonic diagnostic device 100 without air staying inside the housing Can be increased.

  FIG. 10 is a central cross-sectional view of the main body 1 along the front-rear direction. As shown in FIG. 10, the air sucked from the battery intake port 9 passes through a part of the battery 8 and is exhausted from the battery exhaust port 19. In this case, the air passing through a part of the battery 8 may cool the battery 8. In addition, the battery air inlet 9 and the battery air outlet 19 are provided at the front upper part and the upper part of the battery 8, respectively, and are arranged at orthogonal positions. However, the battery air outlet 19 is provided at the rear of the battery 8 and The intake air from the port 9 may pass through the inside of the battery 8 and be exhausted from the battery exhaust port 19. Further, the flow path for the air to pass through the battery 8 may be formed in a wave shape in order to enhance the cooling effect of the battery 8.

  The air exhausted from the battery exhaust port 19 is sucked from the first opening 15 provided in the battery housing part 51. The first opening 15 may be provided in the connection portion 30 (FIG. 5) in consideration of size and space restrictions. Further, the position of the first opening 15 may be determined in accordance with the position of the battery exhaust port 19. For example, when the battery exhaust port 19 is provided behind the battery 8, the first opening 15 may be provided behind the battery housing part 51. A plurality of first openings 15 may be provided.

  The air sucked from the first opening 15 is guided to the inside of the main body 1 and is a pre-stage flow path 55a of the flow path (first flow path) 55 formed between the battery housing portion 51 and the substrate 16. And then passes through the rear flow path 55b. The air passing through the flow path (first flow path) 55 mainly cools the lower surface portion (first flat surface portion) 53 side of the substrate 16. As shown in FIG. 10, the front channel 55a is configured to have a smaller space than the rear channel 55b. As a result, the flow rate of air passing through the front-stage flow channel 55a is faster than the flow rate of air passing through the rear-stage flow channel 55b, and the cooling effect of the substrate 16 is enhanced.

  The air that has passed through the flow path (first flow path) 55 is exhausted from the second opening 10.

  The air sucked from the third opening 11 provided on the upper surface of the housing 50 is guided to the inside of the main body 1 (second flow path 56). In other words, the third opening 11 provided on the upper surface of the housing 50 sucks air in order to cool the upper surface portion (second flat surface portion) 54 of the substrate 16. The flow path (second flow path) 56 is a flow path (second flow path) 56, which is constituted by the upper surface portion (second flat surface portion) 54 of the substrate 16, and intake air from the third opening 11 Lead. The flow path (second flow path) 56 guides the intake air from the third opening 11 along the planar direction of the substrate 16. The fourth opening 12 provided at the rear of the housing 50 exhausts the intake air that has passed through the flow path (second flow path) 56. According to this configuration, air is guided from the battery exhaust port 19 to the inside, and by securing a plurality of flow paths, both surfaces (upper and lower surfaces) of the substrate can be cooled at the same time, greatly restricting size and space. In portable ultrasonic diagnostic apparatus 100 with high substrate density, the cooling efficiency of the apparatus can be increased.

  As shown in FIG. 10, the battery air inlet 9 and the second opening 10 face each other in the front-rear direction of the housing 50 in a state where the battery 8 is housed in the battery housing 51. The battery inlet 9 is located in front of the housing 50, and the second opening 10 is located in the rear of the housing 50.

  As a result, air passes linearly from the battery inlet 9 to the second opening 10 (from the front to the rear of the main body 1), so that the air is not retained inside the housing 50 and the device is cooled. The effect can be enhanced.

  In order to facilitate the insertion of the battery 8 into the main body 1, the battery 8 is inserted into the battery accommodating portion 51 from the front of the main body 1. Therefore, considering the size and space restrictions, conventionally, the battery 8 has blocked the air flow path from the front of the main body 1. In addition, a side opening 13 is provided on the side of the main body 1 for intake, but space is divided for the probe connection 4 and various interfaces 14, making it difficult to secure sufficient ventilation holes. Thus, sufficient cooling could not be performed with only the side openings 13. Further, since the intake air from the side opening 13 passes non-linearly from the side of the main body 1 to the rear (from the side opening 13 to the second opening 10), the air enters the housing 50. It stayed.

  On the other hand, in the present embodiment, by providing the battery 8 with the battery intake port 9 and the battery exhaust port 19, a flow path is secured inside the battery 8, and air passes linearly from the front to the rear of the main body 1. A flow path can be secured. As a result, the cooling function of the portable ultrasonic diagnostic apparatus 100 that satisfies the size and space restrictions can be enhanced, and the battery 8 can also be cooled. Further, since the battery inlet 9 is hidden behind the operation unit 2 when the portable ultrasonic diagnostic apparatus 100 is used, it is possible to prevent foreign matter from being mixed in and to ensure a stable inflow of air.

  Further, in the present embodiment, the first flow path 55 and the second flow path 56 are provided inside the main body 1, and the air passing through the first flow path 55 is the first flat portion 53 of the substrate 16. Since the air passing through the second flow path 56 cools the second flat surface portion 54 of the substrate 16, both surfaces (upper and lower surfaces) of the substrate 16 can be simultaneously cooled. The cooling function of the ultrasonic diagnostic apparatus 100 can be enhanced. The first channel 55 is formed in the lower part of the substrate 16 (between the substrate 16 and the housing lower part 24), so that the portion that was a dead space can be used as the channel. In particular, the front flow path 55a is formed between the battery housing part 51 and the substrate 16, so that the portion that was a dead space can be used as the flow path. Further, since the front-stage flow channel 55a is formed narrower than the rear-stage flow channel 55b, the speed of air passing through the front-stage flow channel 55a can be increased, and the cooling function of the portable ultrasonic diagnostic apparatus 100 is enhanced. be able to.

  As mentioned above, although embodiment concerning this invention was described, this invention is not limited to these, It can change and deform | transform within the range described in the claim.

  For example, as shown in FIG. 11, the substrate 16 may include a plurality of substrates 16a and 16b. The plurality of substrates 16, 16 a, 16 b may be arranged in layers inside the main body 1. That is, the substrate 16 includes a plurality of substrates 16a and 16b substantially parallel to the substrate 16. Even when the main body 1 includes a plurality of substrates 16, 16 a, 16 b, the cooling function of the portable ultrasonic diagnostic apparatus 100 can be enhanced by securing a plurality of flow paths.

  In the present embodiment, the cooling structure and the cooling function of the main body 1 of the portable ultrasonic diagnostic apparatus 100 have been described.However, in the present embodiment, other components (for example, the battery housing portion are provided with a battery housing portion). The present invention can also be applied to the operation unit 2 or the display unit 3) provided.

  In addition, the number and shape of the openings, the air inlets, the air outlets, and the fans can be appropriately changed according to the shape and use state of the portable ultrasonic diagnostic apparatus 100.

  The portable ultrasonic diagnostic apparatus according to the present invention has an effect that the cooling efficiency of the apparatus can be increased in a portable ultrasonic diagnostic apparatus with large size and space restrictions and high substrate density. It is useful as a portable ultrasonic diagnostic device.

1 Main body, 2 Operation section, 3 Display section, 4 Probe connection section, 5, 17, 18 Fan, 6 Operation section intake, 7 Operation section exhaust, 8 Battery, 9 Battery intake, 10 Second opening , 11 3rd opening, 12 4th opening, 13 Side opening, 14 interface, 15 1st opening, 16 Board, 19 Battery exhaust, 20 Power storage, 21 Bulkhead, 22 Housing Rear part, 23 Case upper part, 24 Case lower part, 29 CPU, 30 Universal joint (connection part), 50 Case, 51 Battery housing part, 53 First flat part, 54 Second flat part, 55 First Channel, 56 second channel, 100 portable ultrasonic diagnostic equipment

Claims (15)

A housing having a substrate inside;
A battery that is housed in a battery housing provided in the housing and supplies power to the substrate;
An intake opening that is provided in the battery housing and sucks in air around the battery or the substrate heated by heat generated by the battery or the substrate;
A flow path for guiding air around the battery or the substrate sucked from the intake opening;
A portable ultrasonic diagnostic apparatus comprising: an exhaust opening for exhausting air around the battery or the substrate that has passed through the flow path.   2. The flow path is configured by a planar portion of the substrate, and guides air around the battery sucked from the intake opening along a planar direction of the substrate. Portable ultrasonic diagnostic equipment. The intake opening includes a first opening provided in front of the housing for sucking air around a lower surface portion of the substrate, and an upper surface of the housing provided around the upper surface portion of the substrate. A third opening for sucking air;
The flow path includes a first flow path that guides air around the lower surface portion of the substrate sucked from the first opening along a planar direction of the lower surface portion of the substrate, and an upper surface portion of the substrate. A second flow path for guiding the air around the upper surface portion of the substrate sucked from the third opening along the plane direction of
The exhaust opening is provided at the rear of the housing, and a second opening that exhausts the air around the lower surface of the substrate that has been sucked and has passed through the first flow path, and the second 2. The portable ultrasonic diagnostic apparatus according to claim 1, further comprising: a fourth opening that exhausts air around the upper surface of the substrate that has been sucked through the flow path. The battery is
A battery air inlet for inhaling air around the battery;
2. The portable ultrasonic diagnostic apparatus according to claim 1, further comprising a battery exhaust port that exhausts the air around the battery that has been taken in as exhaust of the battery.   In a state where the battery is housed in the battery housing portion, the battery air inlet is located in front of the housing, and the second opening is located in the rear of the housing. The portable ultrasonic diagnostic apparatus according to claim 4. A probe connecting portion provided on a side of the housing for connecting an ultrasonic probe; and
2. The portable ultrasonic diagnostic apparatus according to claim 1, further comprising a side opening provided on a side opposite to the probe connecting portion.   2. The portable ultrasonic diagnostic apparatus according to claim 1, further comprising a fan that generates an air flow in the air around the battery or the board sucked into the intake opening. A first fan that generates an air flow around the lower surface of the substrate sucked into the first opening;
4. The portable ultrasonic diagnostic apparatus according to claim 3, further comprising a second fan that generates an air flow around the upper surface portion of the substrate sucked into the third opening.   2. The portable ultrasonic diagnostic apparatus according to claim 1, comprising a plurality of substrates substantially parallel to the substrate. A probe connecting portion provided on a side of the housing for connecting an ultrasonic probe; and
An operation unit for operating the portable ultrasonic diagnostic apparatus;
An operation unit intake port that is provided in the operation unit and sucks air around the operation unit, and an operation that is provided in the operation unit and exhausts air around the operation unit that is sucked from the operation unit intake port. Part exhaust port,
The operation part intake port is provided on the probe connection part side,
2. The portable ultrasonic diagnostic apparatus according to claim 1, wherein the operation unit exhaust port is provided on a side opposite to the probe connection unit. A housing having a substrate inside;
A battery housing for housing the battery;
A first opening provided in the battery housing portion to inhale battery exhaust that has passed through a portion of the battery;
In order to cool the substrate, a flow path for guiding intake air from the first opening,
And a second opening for exhausting the intake air that has passed through the flow path. A housing having a substrate inside;
A battery housing for housing the battery;
A first opening provided in front of the housing;
In order to cool the lower surface portion of the substrate, along the planar direction of the lower surface portion, a first flow path for guiding intake air from the first opening,
A second opening that is provided behind the housing and exhausts the intake air that has passed through the first flow path;
A third opening that is provided on the upper surface of the housing and sucks air to cool the upper surface of the substrate;
A second flow path for guiding the intake air from the third opening;
A portable ultrasonic diagnostic apparatus, comprising: a fourth opening provided behind the housing and exhausting the intake air that has passed through the second flow path.   13. The first opening is provided at an interface of a universal joint that connects the main body and the display unit, or at an upper or rear interface of the battery housing unit. The portable ultrasonic diagnostic apparatus according to 1.   13. The first flow path has a front-stage flow path and a rear-stage flow path, and the front-stage flow path is configured to have a narrower space than the rear-stage flow path. The portable ultrasonic diagnostic apparatus according to 1. The battery in the portable ultrasonic diagnostic apparatus according to any one of claims 1 to 12,
In a state where the battery is accommodated in the battery accommodating portion, a plurality of battery intake ports located in front of the battery;
A battery comprising: a plurality of partition walls partitioning the plurality of battery intake ports.

Images