CPAP Device

Abstract

To provide a compact CPAP apparatus in which a main unit is easy to remove from a base unit.SOLUTION: A CPAP apparatus 10 comprises: a main unit 20 which includes an air inlet 281, an air outlet 291, and a first electric circuit including a blower; and a base unit 30 which can have the main unit 20 attached thereto and includes an air outlet 38, an air inlet 39, a blower tube 35, and a second electric circuit different from the first electric circuit. The main unit 20 comprises a lower surface wall 202, which comprises a plurality of connection terminals 24 connecting to the first electric circuit. The base unit 30 comprises an upper surface wall 311, which comprises a plurality of connection terminals 50 connecting to the second electric circuit. The connection terminals 24 and the connection terminals 50 are arranged side by side in a direction generally parallel to the facing direction of the lower surface wall 202 and the upper surface wall 311. The connection terminals 24 or the connection terminals 50 comprise an energization force generation member which generates an energization force in the facing direction of the lower surface wall 202 and the upper surface wall 311.SELECTED DRAWING: Figure 13

Description

[Technical field]

[0001] The present invention relates to a CPAP device in which a main unit is detachable from a base unit. [Background technology]

[0002] Patent Document 1 describes a CPAP device that includes a main unit and a base unit. The main unit can be used alone, but may also be used in combination with the base unit.

[0003] When the main unit and the base unit are used in combination, the main unit is attached and fixed to the base unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 217843 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional configuration as shown in Patent Document 1, the main unit cannot be easily detached from the base unit. On the other hand, if an independent mechanism for easily detaching the main unit from the base unit is provided, the device becomes large.

[0006] SUMMARY OF THE PRESENT EMBODIMENT It is therefore an object of the present invention to provide a compact CPAP device in which the main unit can be easily detached from the base unit. [Means for solving the problem]

[0007] The CPAP device of the present invention includes a main unit having a first inlet, a first exhaust port, and a first electric circuit including a blower, and a base unit to which the main unit can be attached and having a second exhaust port, a second inlet, an air blower, and a second electric circuit different from the first electric circuit. The main unit includes a first wall facing the base unit, and the first wall includes a first terminal connected to the first electric circuit. The base unit includes a second wall facing the first wall of the main unit, and the second wall includes a second terminal connected to the second electric circuit. The first terminal and the second terminal are arranged side by side in a direction approximately parallel to the facing direction of the first wall and the second wall. One of the first terminal and the second terminal includes a biasing force generating member that generates a biasing force in the facing direction of the first wall and the second wall.

[0008] In this configuration, the biasing force and the reaction of the biasing force generated between the first terminal and the second terminal that establish an electrical connection can be utilized to release the main unit from the base unit. Effect of the Invention

[0009] According to the present invention, a compact CPAP device can be realized in which the main unit can be easily detached from the base unit. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of the appearance of a CPAP device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an external perspective view of the CPAP device according to the embodiment of the present invention. [Diagram 3] FIG. 3 is a side cross-sectional view of a CPAP device according to an embodiment of the present invention. [Figure 4] 4(A) and 4(B) are external perspective views of the main unit according to the embodiment of the present invention. [Diagram 5] FIG. 5(A) is a top view of a main unit according to an embodiment of the present invention, and FIG. 5(B) is a bottom view of the main unit. [Figure 6]6(A), 6(B), and 6(C) are side views of a main unit according to an embodiment of the present invention, and FIG. 6(D) is a side cross-sectional view of the main unit according to an embodiment of the present invention. [Figure 7] FIG. 7 is an external perspective view of the base unit according to the embodiment of the present invention. [Figure 8] FIG. 8(A) is a top view of the base unit, and FIG. 8(B) is a side view of the base unit. [Figure 9] 9(A) and 9(B) are side views of the base unit. [Figure 10] 10A and 10B are perspective views showing an example of a specific configuration of terminal electrodes arranged on the base unit. [Figure 11] FIG. 11(A) is a perspective view of the hook member, and FIG. 11(B) is a four-sided view of the hook member. [Figure 12] FIG. 12 is a side cross-sectional view showing the pop-up state. [Figure 13] FIG. 13(A) is an enlarged cross-sectional view of a portion of the side showing the fixed state, and FIG. 13(B) is a step-by-step cross-sectional view of a portion of the side showing the state in which the main unit is detached from the base unit by popping up. [Figure 14] FIG. 14 is a cross-sectional view of a portion of a side view showing the main unit being removed from the base unit by popping up. [Figure 15] FIG. 15 is an enlarged cross-sectional view of a portion of a side surface of a CPAP device according to a modified example, showing a state in which a main unit is fixed to a base unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A CPAP device according to an embodiment of the present invention will be described with reference to the drawings.

[0012] (Overview of CPAP device 10) Fig. 1 and Fig. 2 are external perspective views of a CPAP device according to an embodiment of the present invention. Fig. 3 is a side cross-sectional view of a CPAP device according to an embodiment of the present invention. Fig. 1 and Fig. 3 show a state in which a main unit is attached to a base unit, and Fig. 2 shows a state in which the main unit is removed from the base unit.

[0013] As shown in FIGS. 1, 2 and 3, the CPAP device 10 includes a main unit 20 and a base unit 30.

[0014] The main unit 20 is a rectangle having a long dimension and a short dimension in a plan view. Note that the rectangle in this embodiment is not limited to a perfect rectangle, and includes those with various chamfered corners. The outer shape of the main unit 20 is a rectangular parallelepiped, and the height is shorter than the length in the long dimension and the length in the short dimension. Note that the rectangular parallelepiped in this embodiment is not limited to a perfect rectangular parallelepiped, and includes those with various chamfered tops and edges.

[0015] The base unit 30 is a rectangle having a long dimension and a short dimension in a plan view. The base unit 30 has a high back portion and a low back portion, and the high back portion is higher than the low back portion. In other words, the external shape of the base unit 30 is a shape in which a rectangular parallelepiped high back portion and a rectangular parallelepiped low back portion are connected in the long dimension of the base unit 30.

[0016] The main unit 20 can be attached to the upper surface of the low back portion of the base unit 30. When the main unit 20 is attached to the base unit 30, the external shape of the CPAP device 10 is a rectangular parallelepiped.

[0017] In a state where the main unit 20 is attached to the base unit 30 (attached state), the gas flow path of the main unit 20 communicates with the gas flow path of the base unit 30. In addition, the first electric circuit of the main unit 20 and the second electric circuit of the base unit 30 are electrically connected. As a result, the main unit 20 and the base unit 30 work together to realize the functions of the CPAP device 10.

[0018] When the main unit 20 is detached from the base unit 30, the main unit 20 operates independently and realizes the functions of the CPAP device 10.

[0019] The specific details of the mounting state, flow paths, and electrical connections between the main unit 20 and the base unit 30 will be described later, and a specific configuration example of the main unit 20 and the base unit 30 will be described first.

[0020] (Main Unit 20) 4(A) and 4(B) are external perspective views of the main unit according to the embodiment of the present invention. FIG. 4(A) is a view from the top side, and FIG. 4(B) is a view from the bottom side. FIG. 5(A) is a top view of the main unit according to the embodiment of the present invention, and FIG. 5(B) is a bottom view of the main unit. FIG. 6(A), FIG. 6(B), and FIG. 6(C) are side views of the main unit according to the embodiment of the present invention, and FIG. 6(D) is a side cross-sectional view of the main unit according to the embodiment of the present invention. FIG. 6(A) is a view from the short side wall 203 side, FIG. 6(B) is a view from the short side wall 204 side, and FIG. 6(C) is a view from the long side wall 205 side. FIG. 6(D) is a side cross-sectional view from the same side as FIG. 6(C).

[0021] As shown in Figures 4(A), 4(B), 5(A), 5(B), 6(A), 6(B), 6(C), and 6(D), the main unit 20 includes a housing 200.

[0022] The outer shape of the housing 200 is a rectangular parallelepiped having a long dimension (x20 axis direction) and a short dimension (y20 axis direction) and a predetermined height (length in the z20 axis direction). The housing 200 includes an upper wall 201, a lower wall 202, a side wall 203, a side wall 204, a side wall 205, and a side wall 206.

[0023] The upper wall 201 and the lower wall 202 face each other. The side walls 203 and 204 are parallel to the short dimension direction and face each other. The side walls 205 and 206 are parallel to the long dimension direction and face each other.

[0024] Side wall 203, side wall 204, side wall 205, and side wall 206 are connected to the periphery of top wall 201 and bottom wall 202. This causes housing 200 to have an internal space S200 surrounded by top wall 201, bottom wall 202, side wall 203, side wall 204, side wall 205, and side wall 206. A first electric circuit (not shown) is disposed in internal space S200.

[0025] The side wall 203 has an intake port 281 and an exhaust port 291. The intake port 281 corresponds to the first intake port, and the exhaust port 291 corresponds to the first exhaust port. The intake port 281 and the exhaust port 291 penetrate the side wall 203 in the thickness direction. The intake port 281 and the exhaust port 291 allow the internal space S200 of the housing 200 to communicate with the external space of the housing 200. The side wall 203 is a flow path forming wall of the main unit 20, and the outer surface of the side wall 203 corresponds to the flow path forming surface of the main unit 20.

[0026] The intake port 281 and the exhaust port 291 are arranged side by side in the width direction of the side wall 203. The intake port 281 and the exhaust port 291 are arranged in this order from one end to the other end in the width direction of the side wall 203. The one end in the width direction of the side wall 203 is the end where the side wall 203 is connected to the side wall 205, and the other end is the end where the side wall 203 is connected to the side wall 206.

[0027] A cylindrical body 290 is installed on the side wall 203. The cylindrical body 290 is shaped to protrude from the outer surface of the side wall 203. A central opening of the cylindrical body 290 is connected to an exhaust port 291 formed in the side wall 203, and this portion also functions as the exhaust port 291.

[0028] An air filter 22 is disposed in the air intake 281. A filter cover 21 is attached to the outer surface side of the air filter 22. The air filter 22 is fixed to the air intake 281 by being sandwiched between the filter cover 21 and the side wall 203.

[0029] A recess 231 is formed in the side wall 203. The recess 231 is formed in the vicinity of one end of the side wall 203. That is, the recess 231 is disposed apart from the cylinder 290 forming the exhaust port 291 in the width direction of the side wall 203.

[0030] A power supply port 26 is disposed on the side wall 204. The power supply port 26 is connected to a first electric circuit in the internal space S200. By connecting the power supply port 26 to an external power adapter, power is supplied to the first electric circuit.

[0031] An operation button 29 is disposed on the top wall 201. The operation button 29 is connected to a first electric circuit in the internal space S200. By operating the operation button 29, the operation of the first electric circuit, such as starting and stopping, is controlled.

[0032] A recess 230 is formed in the lower wall 202. The recess 230 is formed at a position closer to one end of the lower wall 202 than to the other end. The one end of the lower wall 202 is the end where the lower wall 202 connects to the side wall 203, and the other end is the end where the lower wall 202 connects to the side wall 204. It is preferable that the recess 230 is formed at a position as close as possible to the other end, in other words, at a position as far away as possible from the cylinder 290 and the recess 231.

[0033] A plurality of connection terminals 24 are disposed on the surface 23F1 of the bottom wall 23 of the recess 230. The plurality of connection terminals 24 are arranged parallel to one another in the short dimension direction of the lower wall 202. The plurality of connection terminals 24 are film-like electrode patterns (for example, rectangular electrode patterns in a plan view), and are connected to a first electric circuit.

[0034] A groove 25 is formed in the bottom wall 23. The groove 25 penetrates the bottom wall 23 and extends parallel to the short dimension direction of the lower wall 202. The groove 25 is formed at a position closer to the other end of the lower wall 202 than the multiple connection terminals 24.

[0035] (Base Unit 30) Fig. 7 is an external perspective view of the base unit according to the embodiment of the present invention. Fig. 8(A) is a top view of the base unit, and Figs. 8(B), 9(A), and 9(B) are side views of the base unit. Fig. 8(B) is a view seen from the long side walls 315, 325 side, Fig. 9(A) is a view seen from the short side walls 314, 324 side, and Fig. 9(B) is a view seen from the short side walls 313, 323 side.

[0036] As shown in FIGS. 7, 8(A), 8(B), 9(A) and 9(B), the base unit 30 includes a plurality of housings 31 and 32.

[0037] (General shape of base unit 30) The outer shape of the housing 31 and the housing 32 is a rectangular parallelepiped having a long dimension (x30 axis direction) and a short dimension (y30 axis direction) and a predetermined height (length in the z30 axis direction). The long dimension of the housing 31 is longer than the long dimension of the housing 32.

[0038] The housing 32 is disposed on the upper wall 311 side of the housing 31, and the housings 31 and 32 are connected to each other. The internal space S31 of the housing 31 and the internal space S32 of the housing 32 communicate with each other via an opening 3110 of the housing 31 and an opening 3220 of the housing 32.

[0039] Side wall 313 of housing 31 and side wall 323 of housing 32 are flush with each other, side wall 315 of housing 31 and side wall 325 of housing 32 are flush with each other, and side wall 316 of housing 31 and side wall 326 of housing 32 are flush with each other.

[0040] As a result, base unit 30 has a step midway in the longitudinal direction, and has a high back portion where housing 31 and housing 32 overlap, and a low back portion where only housing 31 is present.

[0041] (Case 31) Housing 31 includes top wall 311, bottom wall 312, side wall 313, side wall 314, side wall 315, and side wall 316. Top wall 311 and bottom wall 312 face each other. Side wall 313 and side wall 314 are parallel to the short dimension direction and face each other. Side wall 315 and side wall 316 are parallel to the long dimension direction and face each other. Top wall 311 corresponds to the second wall of the present invention.

[0042] Side wall 313, side wall 314, side wall 315, and side wall 316 are connected to the periphery of top wall 311 and bottom wall 312. This causes housing 31 to have internal space S31 surrounded by top wall 311, bottom wall 312, side wall 313, side wall 314, side wall 315, and side wall 316. At least a part of a second electric circuit is disposed in internal space S31 (not shown).

[0043] An opening 3110 is formed in the top wall 311. The opening 3110 is a hole penetrating the top wall 311 in the thickness direction. The opening 3110 has a predetermined length in the long dimension direction and is open over substantially the entire top wall 311 in the short dimension direction. The opening 3110 is formed so as to leave a predetermined area on the side of the top wall 311 connected to the side wall 314. In other words, the opening 3110 is formed in an area a predetermined width inward from an area in which the housing 32 is disposed.

[0044] Frame bodies 344, 345, and 346 are formed around the periphery of top wall 311. Frame bodies 344, 345, and 346 protrude upward from the upper surface of top wall 311. Frame body 344 runs along the connection between top wall 311 and side wall 314, frame body 345 runs along the connection between top wall 311 and side wall 315, and frame body 346 runs along the connection between top wall 311 and side wall 316.

[0045] A protrusion 40 is formed on the top wall 311. The protrusion 40 is formed at a position on the top wall 311 close to the side wall 314. More specifically, the protrusion 40 is formed at a position that fits into the recess 230 of the main unit 20 when the main unit 20 is attached to the base unit 30.

[0046] A plurality of connection terminals 50 are disposed on the top wall of the protrusion 40. The plurality of connection terminals 50 are arranged parallel to one another in the short dimension direction of the top wall 311. The plurality of connection terminals 50 are connected to a second electric circuit.

[0047] The multiple connection terminals 50 are arranged at positions overlapping the multiple connection terminals 24 when viewed from above in the CPAP device 10 in a state in which the main unit 20 is attached to the base unit 30. The multiple connection terminals 50 are rod bodies extending in a direction perpendicular to the surface of the top wall of the protruding portion 40. The multiple connection terminals 50 correspond to the pin terminals of the present invention.

[0048] 10(A) and 10(B) are perspective views showing an example of a specific configuration of a terminal electrode arranged on a base unit. In FIG. 10, the spring is shown with a solid line to make it easier to see, but it is housed inside the housing of the terminal electrode.

[0049] Connection terminal 50 includes columnar plunger 501, cylindrical housing 502, bottom wall 503, and spring 509. Plunger 501 is housed in housing 502 so as to be movable in the direction in which housing 502 extends (the axial direction of the cylinder). Bottom wall 503 closes one end of housing 502.

[0050] Spring 509 is disposed in housing 502. One end of spring 509 contacts bottom wall 503, and the other end of spring 509 contacts the bottom surface of plunger 501.

[0051] With this configuration, the connection terminal 50 is expandable and contractable in the extending direction as shown in Figs. 10(A) and 10(B), and is capable of generating a biasing force in the extending direction.

[0052] A groove 600 is formed in the top wall of the protrusion 40. The groove 600 penetrates the top wall of the protrusion 40 and extends parallel to the short dimension direction of the top wall 311. The groove 600 is formed in a position on the top wall 311 closer to the side wall 314 than the multiple connection terminals 50 are.

[0053] A circuit board 500 constituting a second electric circuit is disposed in the internal space S31 of the housing 31. A plurality of connection terminals 50 penetrate the top wall of the protruding portion 40, and are mounted and fixed to the circuit board 500.

[0054] A hook member 60 is disposed on the housing 31. Figure 11(A) is a perspective view of the hook member, and Figure 11(B) is a four-sided view of the hook member.

[0055] 11(A) and 11(B), the hook member 60 includes a head 61, a support 62, and an operating body 63. The support 62 and the operating body 63 are flat plates. The operating body 63 is connected to one end of the support 62. The main surface of the operating body 63 and the main surface of the support 62 form an angle of approximately 90°.

[0056] The head 61 is connected to the other end of the support 62. The head 61 is shaped to protrude on the side opposite to the side of the support 62 from which the operating body 63 extends. An inner hook surface 610 of the head 61 that connects to the support 62 is approximately perpendicular to the direction in which the support 62 extends.

[0057] The support 62 of the hook member 60 is inserted into the groove 600. The head 61 and a part of the support 62 on the head 61 side protrude outward beyond the top wall of the protrusion 40. The other part of the support 62 and the operating body 63 are housed within the internal space S31. The tip of the operating body 63 is disposed in a position where it can be operated from the outside via the opening 37.

[0058] (Case 32) Housing 32 includes top wall 321, side wall 323, side wall 324, side wall 325, and side wall 326. Side wall 323 and side wall 324 are parallel to the short dimension direction and face each other. Side wall 325 and side wall 326 are parallel to the long dimension direction and face each other.

[0059] Side wall 323, side wall 324, side wall 325, and side wall 326 are connected to the periphery of top wall 321. This causes housing 32 to have internal space S32 surrounded by top wall 321, side wall 323, side wall 324, side wall 325, and side wall 326.

[0060] An opening 3220 is formed on the side of the housing 32 facing the top wall 321 .

[0061] An air duct 35 is formed in the top wall 311. The air duct 35 is shaped to protrude outward from the top wall 311 toward the side wall 313. An opening 350 of the air duct 35 becomes a final air outlet that supplies the desired air (wind) to the user in a state in which the main unit 20 is attached to the base unit 30.

[0062] The side wall 324 is a wall having a surface that forms a step of the base unit 30. The side wall 324 has an exhaust port 38 and an intake port 39. The exhaust port 38 corresponds to the second exhaust port, and the intake port 39 corresponds to the second intake port. The exhaust port 38 and the intake port 39 penetrate the side wall 324 in the thickness direction. The exhaust port 38 and the intake port 39 allow the internal space S32 of the housing 32 to communicate with the external space of the housing 32. The side wall 324 is a flow path forming wall on the base unit 30 side, and the outer surface of the side wall 324 corresponds to the flow path forming surface of the base unit 30.

[0063] The exhaust port 38 and the intake port 39 are arranged side by side in the width direction of the side wall 324. The exhaust port 38 and the intake port 39 are arranged in this order from one end to the other end in the width direction of the side wall 324. The one end in the width direction of the side wall 324 is the end where the side wall 324 is connected to the side wall 325, and the other end is the end where the side wall 324 is connected to the side wall 326.

[0064] A protrusion 329 is formed on the side wall 324. The protrusion 329 is formed in the vicinity of one end of the side wall 324. That is, the protrusion 329 is disposed away from the air intake port 39 in the width direction of the side wall 324.

[0065] (Overview of the operation of the CPAP device 10) (Main unit 20 used alone) The main unit 20 includes a blower (not shown) electrically connected to the first electric circuit. The blower is disposed in the internal space S200 of the housing 200. When the blower is driven, the main unit 20 takes in air from the intake port 281 and exhausts it from the exhaust port 291. By providing the air filter 22 in the intake port 281, the main unit 20 supplies gas (air) of a desired cleanliness to the user from the exhaust port 291.

[0066] (Main unit 20 is attached to base unit 30 for use) When the main unit 20 is attached to the base unit 30, the main unit 20 is disposed on the upper surface of the low back part (upper surface of the upper wall 311) of the base unit 30. The lower wall 202 of the housing 200 of the main unit 20 and the upper wall 311 of the housing 31 of the base unit 30 face each other.

[0067] Furthermore, the outer surface of side wall 203 of housing 200 and the outer surface of side wall 324 of housing 32 are close to or in contact with each other, and are in close contact with each other. Side wall 203 and side wall 324 may be in close contact with each other via an elastic body.

[0068] At this time, the cylinder 290 constituting the exhaust port 291 of the main unit 20 is inserted into the intake port 39 of the base unit 30. Also, the intake port 281 of the main unit 20 and the exhaust port 38 of the base unit 30 overlap when viewed along the x-axis (x10-axis). As a result, the flow path forming surface on the main unit 20 side and the flow path forming surface on the base unit 30 side face each other closely. The intake port 281 of the main unit 20 and the exhaust port 38 of the base unit 30 pass through each other without causing gas leakage. The exhaust port 291 of the main unit 20 and the intake port 39 of the base unit 30 pass through each other without causing gas leakage.

[0069] In this state, when the blower is driven, the base unit 30 takes in gas from the intake port 36, and exhausts the gas from the exhaust port 38 through the internal space S31 and the internal space S32. The main unit 20 takes in the gas exhausted from the exhaust port 38 from the intake port 281, and exhausts the gas from the exhaust port 291. The base unit 30 takes in the gas exhausted from the exhaust port 291 from the intake port 39, and exhausts the gas from the opening 350 of the air blower duct 35. As a result, the CPAP device 10 with the main unit 20 attached to the base unit 30 supplies gas (air) of a desired cleanliness to the user from the opening 350 of the air blower duct 35.

[0070] Although not shown, a water tank is housed in the high back portion of the base unit 30. The base unit 30 also includes a heater that heats the water in the water tank.

[0071] The base unit 30 has an intake port for taking in water vapor heated by a heater in a flow path that connects from the intake port 39 to the opening 350 of the air blower duct 35. With this, the CPAP device 10 in a state in which the main unit 20 is attached to the base unit 30 supplies gas (air) with a desired humidity to the user from the opening 350 of the air blower duct 35.

[0072] At this time, the convex portion 40 of the base unit 30 is fitted into the concave portion 230 of the main unit 20. Then, the top surfaces 510 of the multiple connection terminals 50 of the base unit 30 abut against the multiple connection terminals 24 of the main unit 20 and are electrically connected.

[0073] At this time, the multiple connection terminals 50 are pushed in by the main unit 20 (multiple connection terminals 24). As a result, the multiple connection terminals 50 generate a biasing force in a direction (electrical connection direction) to connect to the multiple connection terminals 24. Therefore, the connection resistance between the multiple connection terminals 50 and the multiple connection terminals 24 can be reduced, and the reliability of the electrical connection is improved.

[0074] Furthermore, the hook member 60 of the base unit 30 is inserted through the groove 25 of the housing 200 of the main unit 20. The head 61 of the hook member 60 reaches the internal space S200 of the housing 200, and the hook surface 610 of the head 61 abuts against the back surface 23F2 of the bottom wall 23 of the recess 230. As a result, the head 61 engages with the groove 25 of the bottom wall 23. As a result, the main unit 20 is fixed to the base unit 30.

[0075] Furthermore, the convex portion 329 of the base unit 30 is inserted into the concave portion 231 of the main unit 20, and the cylindrical body 290 of the main unit 20 is inserted into the air intake port 39 of the base unit 30. This further stably fixes the main unit 20 to the base unit 30.

[0076] Furthermore, the frames 344, 345, and 346 of the base unit 30 fit into the grooves 241, 251, and 261 of the main unit 20. This allows the main unit 20 to be fixed to the base unit 30 even more reliably.

[0077] Furthermore, when connecting the main unit 20 and the base unit 30, the conditions required for connecting the gas flow paths (e.g., airtightness) are different from the conditions required for electrical connection (e.g., stability of electrical connection, etc.). In the CPAP device 10, the pair of surfaces (walls) for connecting the gas flow paths between the main unit 20 and the base unit 30 and the pair of surfaces (walls) for electrical connection are different pairs of surfaces (walls). Therefore, the CPAP device 10 can realize the conditions required for connecting the gas flow paths and the conditions required for electrical connection with different pairs of surfaces (walls). Therefore, the CPAP device 10 can easily realize a configuration that simultaneously satisfies the conditions required for connecting the gas flow paths and the conditions required for electrical connection.

[0078] In this way, the gas flow path of the main unit 20 and the gas flow path of the base unit 30 are connected with guaranteed airtightness, and the first electrical circuit of the main unit 20 and the second electrical circuit of the base unit 30 are electrically connected with high reliability.

[0079] (Pop-up mechanism) (When removing the main unit 20 from the base unit 30) Fig. 12 is a side cross-sectional view showing the pop-up state, Fig. 13(A) is an enlarged cross-sectional view of a portion of the side showing the fixed state, and Fig. 13(B) is a cross-sectional view of each step of a portion of the side showing the state in which the main unit is detached from the base unit by popping up.

[0080] 13(A), when the main unit 20 is attached and fixed to the base unit 30, the hook surface 610 of the head 61 of the hook member 60 abuts against the back surface 23F2 of the bottom wall 23 of the recess 230. As a result, the head 61 presses the bottom wall 23 toward the top wall 311 of the base unit 30, and the multiple connection terminals 24 press the multiple connection terminals 50. As a result, the multiple connection terminals 50 become shorter in the axial direction, and a biasing force is generated on the multiple connection terminals 24 by the spring 509.

[0081] Meanwhile, a pressing force is applied to the rear surface 23F2 of the bottom wall 23 from the head 61 of the hook member 60. The hook member 60 is fixed to the housing 31 of the base unit 30. As a result, even if the biasing force of the multiple connection terminals 50 is applied to the multiple connection terminals 24 and the bottom wall 23, the main unit 20 is fixed to the base unit 30 without being separated from the base unit 30.

[0082] 13(B), when the operating body 63 of the hook member 60 is pressed toward the lower wall 312, the hook member 60 rotates about the connection portion between the support body 62 and the operating body 63. As a result, the head 61 moves away from the rear surface 23F2 of the bottom wall 23 and into the groove 25.

[0083] This movement of the head 61 releases the pressing force on the rear surface 23F2 of the bottom wall 23, and only the biasing force from the multiple connection terminals 50 acts on the bottom wall 23. As a result, the main unit 20 is pushed upward from the top wall 311 of the housing 31 of the base unit 30. In other words, the main unit 20 is popped up from the top wall 311 of the housing 31 of the base unit 30.

[0084] In this way, the CPAP device 10 can easily detach the main unit 20 from the base unit 30 by using the biasing force of the multiple connection terminals 50 for electrical connection. This eliminates the need for separate members for generating the biasing force in the CPAP device 10, and allows for miniaturization.

[0085] As described above, the cylindrical body 290 of the housing 200 is inserted into the air intake 39 of the housing 32, and the convex portion 329 of the housing 32 is inserted into the concave portion 231 of the housing 200, so that these portions function as fulcrums, and only the portion of the main unit 20 on the side wall 324 side of the housing 200 is pushed upward.

[0086] The side wall 323 and the side wall 324 are walls at both ends of the housing 200 in the longitudinal direction. Therefore, the distance between the fulcrum and the point of force when the main unit 20 is pushed up can be increased. This allows the main unit 20 to be pushed up with a smaller force. In other words, the CPAP device 10 can pop up the main unit 20 from the base unit 30 only by the biasing force of the multiple connection terminals 50 used for electrical connection, without providing a separate mechanism with a large biasing force.

[0087] This allows the CPAP device 10 to be compact while still allowing the main unit 20 to be easily detached from the base unit 30.

[0088] In addition, in the CPAP device 10, a force is constantly applied to the hook member 60 in the direction of the side wall 203 by a biasing force generating member 69 for the hook member, such as a coil spring. As a result, when the main unit 20 is attached to the base unit 30, a force is applied not only in the direction in which the multiple connection terminals 24 push the multiple connection terminals 50, but also in the direction in which the main unit 20 is pushed into the side wall 324 of the base unit 30. As a result, the CPAP device 10 can further improve the sealing of the flow path that communicates between the main unit 20 and the base unit 30.

[0089] (When attaching the main unit 20 to the base unit 30) FIG. 14 is a cross-sectional view of a portion of a side view showing the main unit being removed from the base unit by popping up.

[0090] When mounting the main unit 20 on the base unit 30, the cylinder 290 of the housing 200 is inserted into the intake port 39 of the housing 32, and the convex portion 329 of the housing 32 is inserted into the concave portion 231 of the housing 200, and the main unit 20 is brought close to the top wall 311 of the housing 32 of the base unit 30. When the main unit 20 approaches the top wall 311, the bottom wall 23 abuts against the head 61 of the hook member 60, applying a pressing force. The hook member 60 rotates due to the pressing force from the bottom wall 23, and the head 61 temporarily moves towards the groove 25.

[0091] Then, when bottom wall 23 rotates to a position where it does not overlap head 61 in a plan view, bottom wall 23 is pressed further into housing 31, and the multiple connection terminals 24 press the multiple connection terminals 50. When hook surface 610 of head 61 reaches a position above back surface 23F2 of bottom wall 23, head 61 receives a biasing force from biasing force generating member 69 for hook member and rotates toward side wall 203. Then, hook surface 610 of head 61 abuts against back surface 23F2 of bottom wall 23, and main unit 20 is attached and fixed to base unit 30.

[0092] In this manner, when mounting the main unit 20 to the base unit 30, the CPAP device 10 allows the main unit 20 to be easily mounted and fixed to the base unit 30.

[0093] The switching device of the present invention is realized by the biasing force of the plurality of connection terminals 50 described above and the structure in which the hook members 60 engage with and separate from the grooves 25 of the bottom wall 23.

[0094] (Modification) FIG. 15 is an enlarged cross-sectional view of a portion of a side surface of a CPAP device according to a modified example, showing a state in which a main unit is fixed to a base unit.

[0095] 15, the CPAP device 10A of the modified example differs from the above-mentioned CPAP device 10 in that the hook member 60 is not provided in the base unit 30A but in the main unit 20A. The other configurations of the CPAP device 10A are the same as those of the CPAP device 10, and the description of the similar parts will be omitted.

[0096] The CPAP device 10A includes a main unit 20A and a base unit 30A. The main unit 20A includes a hook member 60. When the main unit 20A is attached to the base unit 30A, the support 62 of the hook member 60 is inserted through the groove 25 and the groove 600, and the head 61 is in contact with the rear surface 401R of the protrusion 40.

[0097] Even with this configuration, the CPAP device 10A can achieve the same effects as the CPAP device 10.

[0098] <1> a main unit including a first electric circuit including a first intake port, a first exhaust port, and a blower; a base unit to which the main unit can be attached, the base unit including a second exhaust port, a second intake port, an air duct, and a second electric circuit different from the first electric circuit; Equipped with the main unit has a first wall facing the base unit, the first wall having a first terminal connected to the first electric circuit; the base unit has a second wall facing the first wall of the main unit, the second wall having a second terminal connected to the second electric circuit; the first terminal and the second terminal are arranged side by side in a direction substantially parallel to a direction in which the first wall and the second wall face each other, A CPAP device, wherein one of the first terminal and the second terminal is provided with a force generating member that generates a force in the opposing direction between the first wall and the second wall.

[0099] <2> One of the main unit and the base unit is a switch that switches between a mounted state in which the main unit is mounted to the base unit and an open state in which the mounted state is released, using the biasing force; <1> CPAP device.

[0100] <3> The switch is a groove formed in one of the main unit and the base unit; a hook member disposed on the other of the main unit and the base unit; Equipped with The attached state and the released state are switched depending on an engagement state of the hook member in the groove. <2> CPAP device.

[0101] <4> one of the first terminal and the second terminal is a pin terminal that generates the biasing force in a direction in which the first wall and the second wall face each other, The other of the first terminal and the second terminal is a film-like electrode pattern. <1> ~ <3> Any CPAP device.

[0102] <5> The main unit includes: a flow path forming wall in which the first exhaust port is formed and a flow path for a gas on the main unit side is formed, and the first wall having the first terminal are provided on different surfaces, The base unit includes: a flow path forming wall in which the second intake port is formed and a flow path for the gas on the base unit side is formed, and an outer surface of the second wall having the second terminal are different surfaces; The main unit is attached to the base unit in a state in which a flow path forming wall on the main unit side faces a flow path forming wall on the base unit side, and the first wall on the main unit side faces the second wall on the base unit side. <2> or <3> CPAP device.

[0103] <6> the base unit includes a high back portion and a low back portion; the high back portion and the low back portion are physically connected; a side surface due to a step between the high back portion and the low back portion is an outer surface of a flow path forming wall on the base unit side, The upper surface of the low back portion is the outer surface of the second wall. <5> CPAP device.

[0104] <7> the first exhaust port is a cylinder protruding from a wall surface of the main unit to the outside, In the mounted state, the cylindrical body is inserted into the second air intake port. <6> CPAP device.

[0105] <8> The flow path forming surface on the base unit side and the flow path forming surface on the main unit side are provided with a convex portion and a concave portion which are inserted into each other. <7> CPAP device.

[0106] <9> The second air intake port is formed at a position near one end of the side surface in a width direction of the step, a formation position of the protrusion or recess formed on the side surface due to the step is in the vicinity of the other end in the width direction of the side surface due to the step; <8> CPAP device.

[0107] <10> the first terminal is disposed in the vicinity of a surface of the lower surface of the main unit that faces the upper surface of the low back portion and faces a flow path forming surface of the main unit, The second terminal is disposed in the vicinity of a side surface of the low back portion that is farthest from a side surface caused by the step on the upper surface of the low back portion. <6> ~ <9> Any CPAP device.

[0108] <11> A frame body having a shape that follows the outer periphery of the upper surface of the low back portion is provided on the upper surface of the low back portion, The main unit has a groove along an outer periphery of the lower surface, The frame body is inserted into the groove. <10> CPAP device. [Explanation of symbols]

[0109] 10, 10A: CPAP device 20, 20A: Main unit 21: Filter cover 23: Bottom wall 23F1: Surface 23F2: Back side 24: Connection terminal 25: Groove 26: Power port 29: Operation button 30, 30A: Base unit 31, 32: Housing 35: Air pipe 36: Air intake 37:Aperture 38: Exhaust port 39: Air intake 40: Convex 50: Connection terminal 60: Hook member 61: Head 62:Support 63: Control body 69: biasing force generating member 200: Cabinet 201:Top wall 202: Bottom wall 203, 204, 205, 206: Side wall 230: Recess 231: Recess 241: Groove 281: Air intake 290: Cylinder 291: Exhaust port 311:Top wall 312: Bottom wall 313, 314, 315, 316: Side wall 321:Top wall 323, 324, 325, 326: Side wall 329: Convex 344, 345, 346: Frame 350:Aperture 401R: Back 500: Circuit board 501: Plunger 502: Cabinet 503: Bottom wall 509: Spring 510: Top 600: Groove 610: Hook surface 3110, 3220: Aperture S200, S31, S32: Internal space

Claims

1. a main unit including a first electric circuit including a first intake port, a first exhaust port, and a blower; a base unit to which the main unit can be attached, the base unit including a second exhaust port, a second intake port, an air duct, and a second electric circuit different from the first electric circuit; Equipped with the main unit has a first wall facing the base unit, the first wall having a plurality of first terminals connected to the first electric circuit; the base unit includes a second wall facing the first wall of the main unit, the second wall including a plurality of second terminals connected to the second electric circuit; the first terminals and the second terminals are arranged in a direction substantially parallel to a direction in which the first wall and the second wall face each other, The plurality of first terminals are each provided with a biasing force generating member that generates a biasing force in a direction in which the first wall and the second wall face each other, or the plurality of second terminals are each provided with a biasing force generating member that generates a biasing force in the facing direction, CPAP device.

2. The main unit and the base unit are a switch that switches between a mounted state in which the main unit is mounted to the base unit and an open state in which the mounted state is released, using the biasing force; 2. The CPAP device of claim 1.

3. The switch is A set of grooves formed in the main unit and hook members disposed on the base unit; or a hook member disposed on the main unit and a set of grooves disposed on the base unit; Equipped with The attached state and the released state are switched depending on an engagement state of the hook member in the groove.

3. The CPAP device of claim 2.

4. The hook member and the groove are a shape extending along a specific direction in which the plurality of first terminals and the plurality of second terminals are arranged, a first terminal disposed opposite to the first terminals and the second terminals; 4. The CPAP device of claim 3.

5. The plurality of first terminals are constituted by a plurality of pin terminals each generating the biasing force in the opposing direction, and the plurality of second terminals are constituted by a plurality of film-like electrode patterns each arranged on the outer surface of the second wall. or the second terminals are constituted by a plurality of pin terminals each generating the biasing force in the opposing direction, and the first terminals are constituted by a plurality of film-like electrode patterns each disposed on an outer surface of the first wall; 2. The CPAP device of claim 1.

6. The main unit and the base unit Each of the electrodes has a long dimension and a short dimension, The main unit is configured to be rotated and attached to the base unit, The first terminals and the second terminals are arranged in parallel in the short length direction.

2. The CPAP device of claim 1.

7. The main unit includes: a flow path forming wall in which the first exhaust port is formed and a flow path for a gas on the main unit side is formed, and the first wall having the first terminal are provided on different surfaces, The base unit includes: a flow path forming wall in which the second intake port is formed and a flow path for a gas on the base unit side is formed, and the second wall having the second terminal are provided on different surfaces; the main unit is attached to the base unit in a state in which a flow path forming wall on the main unit side faces a flow path forming wall on the base unit side, and the first wall on the main unit side faces the second wall on the base unit side.

3. The CPAP device of claim 2.

8. the base unit includes a high back portion and a low back portion; the high back portion and the low back portion are physically connected; a side surface due to a step between the high back portion and the low back portion is an outer surface of a flow path forming wall on the base unit side, The upper surface of the low back portion is the outer surface of the second wall.

8. The CPAP device of claim 7.

9. the first exhaust port is a cylinder protruding from a wall surface of the main unit to the outside, In the attached state, the cylindrical body is inserted into the second air intake port.

9. The CPAP device of claim 8.

10. The flow path forming surface on the base unit side and the flow path forming surface on the main unit side are provided with a convex portion and a concave portion which are inserted into each other.

10. The CPAP device of claim 9.

11. The second air intake port is formed at a position near one end of the side surface in a width direction of the step, a formation position of the protrusion or recess formed on the side surface due to the step is in the vicinity of the other end in the width direction of the side surface due to the step; 11. The CPAP device of claim 10.

12. the first terminal is disposed in the vicinity of a surface of the lower surface of the main unit that faces the upper surface of the low back portion and faces a flow passage forming surface of the main unit, The second terminal is disposed in the vicinity of a side surface of the low back portion that is farthest from a side surface caused by the step on the upper surface of the low back portion.

9. The CPAP device of claim 8.

13. A frame body having a shape that follows the outer periphery of the upper surface of the low back portion is provided on the upper surface of the low back portion, The main unit has a groove along an outer periphery of the lower surface, The frame body is inserted into the groove.

13. The CPAP device of claim 12.

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