Power supply connecting device

Abstract

The utility model provides a power supply connecting device, which comprises a shell, a control unit, a first connector, at least two second connectors, a connecting piece and a protective sleeve, and is characterized in that the control unit is arranged in the shell, is electrically connected with the first connector, and is electrically connected with the second connectors through the connecting piece; the first connector is connected with the connecting pieces through a shell, the outer surface of the shell is sleeved with a protective sleeve, and the side, close to the connecting pieces, of the protective sleeve is provided with protective pieces in one-to-one correspondence with the connecting pieces; connection among the first connector, the control unit and the second connector is enhanced by sleeving the shell at the connecting position of the first connector, the control unit and the second connector, the shell wraps the control unit, the dustproof and waterproof performance of the power supply connecting device is improved, the shell is sleeved with the protective sleeve, and the protective piece is arranged at the connecting position of the connecting piece and the shell, so that the power supply connecting device is more convenient to use. The dustproof and waterproof performance of the power supply connecting device can be further improved, and the dustproof and waterproof requirements are met.

Description

Technical Field

[0001] The embodiments of the present application belong to the field of medical devices, and specifically relate to a power supply connection device. Background Art

[0002] In clinical emergency treatment of critically ill patients with severe cardiopulmonary failure, extracorporeal membrane oxygenation (ECMO) is used to provide continuous extracorporeal respiratory and circulatory support for patients in order to buy more precious time for emergency treatment. The core parts of extracorporeal membrane oxygenation (ECMO) are artificial lungs (also known as membrane lungs or oxygenators) and artificial hearts (also known as blood pumps, power pumps or pump drives). During operation, the system needs to draw blood from the human body through pipes, and then use blood pumps to oxygenate the blood through the membrane lungs and then transport it back to the human body.

[0003] In the application scenario of ECMO system, it usually involves outdoor ambulance or emergency helicopter transportation. During the transportation process, a power supply connection device is needed to power the blood pump. For this purpose, the power supply connection device needs to meet at least IP3 dust and water resistance requirements. However, the dust and water resistance level of the power supply connection device of the ECMO system in the prior art is low, which makes the circuit components inside the power supply connection device easy to be damaged, and it is impossible to ensure that the power supply connection device can operate reliably under the harsh environmental conditions of outdoor transportation. Summary of the invention

[0004] In order to solve or alleviate the problems existing in the prior art, the present application provides a power supply connection device, including a housing, a control unit, a first connector, at least two second connectors, a connector, and a protective cover;

[0005] The control unit is arranged in the housing, the control unit is electrically connected to the first connector, the control unit is electrically connected to the second connector via a connector, and the first connector and the connector are connected via the housing;

[0006] The outer surface of the shell is covered with a protective sleeve, and a protective piece corresponding to the connecting piece is arranged on one side of the protective sleeve close to the connecting piece;

[0007] The first connector is located inside the shell, and the protective sleeve is provided with an opening corresponding to the first connector.

[0008] Furthermore, the shell includes an upper shell and a lower shell, a first cavity is formed between the upper shell and the lower shell, the control unit is arranged in the first cavity, the control unit is two PCB boards, and the two PCB boards are overlapped in the first cavity.

[0009] Furthermore, at least one first glue injection hole is provided on the shell at a position corresponding to the first cavity.

[0010] Furthermore, the housing, the first connector, the control unit and the connecting piece are integrally formed.

[0011] Furthermore, the shell is provided with a first mounting hole corresponding to the first connector and a second mounting hole corresponding to the connecting member. The first connector is snapped on the first mounting hole. The connecting member is provided with a snap-fitting member, which is snap-fitted with the second mounting hole.

[0012] Furthermore, a second cavity is provided on the shell at a position engaged with the first connector, and at least one second glue injection hole is provided on the shell at a position corresponding to the second cavity.

[0013] Furthermore, a fixing piece is respectively arranged at a position inside the shell corresponding to each second mounting hole, and the fixing piece is used to fix the connecting piece.

[0014] Furthermore, a supporting assembly is arranged in the shell, and the supporting assembly is used to support the control unit.

[0015] Furthermore, a positioning assembly is provided between the control unit and the housing, and the positioning assembly is used to position the control unit.

[0016] Furthermore, a light-transmitting portion is provided on the shell, the light-transmitting portion penetrates the shell and the protective cover, and is used to guide the light emitted by the control unit. The number of the light-transmitting portions corresponds to the number of the second connectors.

[0017] The embodiment of the present application strengthens the connection between the first connector, the control unit and the connecting piece by means of a sleeve shell at the connection point, thereby preventing the connection between the first connector, the control unit and the second connector from being damaged due to external factors during transportation, so that they have sufficient impact and vibration resistance. At the same time, the shell wraps the control unit inside, thereby improving the dustproof and waterproof performance of the power supply connection device. By arranging a protective cover on the outside of the shell and providing a protective piece at the connection point between the connecting piece and the shell, the dustproof and waterproof performance of the power supply connection device can be further improved to meet the dustproof and waterproof requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. Some specific embodiments of the present application will be described in detail in an illustrative and non-restrictive manner with reference to the drawings. The same reference numerals in the drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the drawings:

[0019] Figure 1 This is an exploded view of the power supply connection device according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the connection state structure of the power supply connection device according to an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the three-dimensional structure of the control unit for the implementation of this application;

[0022] Figure 4 A side view of the control unit structure for the implementation of this application;

[0023] Figure 5 This is a schematic diagram of the upper shell structure of an embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the lower shell structure of an embodiment of the present application.

[0025] In the figure: 1. shell; 1a. upper shell; 1b. lower shell; 10. first cavity; 11. first glue injection hole; 12. first mounting hole; 13. second mounting hole; 14. second cavity; 15. second glue injection hole; 16. fixing member; 17. supporting assembly; 18. positioning assembly; 2. control unit; 21. PCB board; 22. FPC flexible cable; 3. first connector; 4. second connector; 5. connecting member; 51. snap-on member; 6. protective cover; 61. protective member; 7. light-transmitting portion; 8. equipment to be powered; 9. power supply equipment. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0027] like Figure 1-2 As shown, an embodiment of the present application provides a power supply connection device, including a housing 1, a control unit 2, a first connector 3, at least two second connectors 4, a connector 5 and a protective cover 6;

[0028] The control unit 2 is arranged in the housing 1, the first connector 3 is connected to the device to be powered 8, the second connector 4 is connected to the power supply device 9, the control unit 2 is electrically connected to the first connector 3, the control unit 2 is electrically connected to the second connector 4 through the connector 5, and the first connector 3 and the connector 5 are connected through the housing 1;

[0029] The outer surface of the housing 1 is covered with a protective sleeve 6, and a protective member 61 corresponding to the connecting member 5 is provided on one side of the protective sleeve 6 close to the connecting member 5;

[0030] The first connector 3 is located inside the housing 1 , and the protective cover 6 is provided with an opening corresponding to the first connector 3 .

[0031] In this embodiment, the electrical connection is achieved by welding the first connector 3 and the connector 5 to the corresponding circuits on the control unit 2, respectively, to form a power supply path and a communication path, to achieve mutual transmission of circuit power supply and communication signals, and to strengthen the connection between the first connector 3, the control unit 2 and the second connector 4 by sleeved shell 1 at the connection between the three, to prevent the connection between the first connector 3, the control unit 2 and the second connector 4 from being damaged due to external factors during transportation, so that it has sufficient impact and vibration resistance, the shell 1 wraps the control unit 2 inside, and improves the dustproof and waterproof performance of the power supply connection device, by sleeved protective cover 6 on the outside of the shell 1, and providing protective member 61 at the connection between the connector 5 and the shell 1, the protective cover 6 and the protective member 61 are all sealed with the shell 1 and the connector 5, which can further improve the dustproof and waterproof performance of the power supply connection device, wherein the protective member 61 can also protect the connection between the shell 1 and the connector 5;

[0032] In addition, by setting up multiple second connectors 4, and each second connector 4 can be connected to a power supply device 9, power can be supplied simultaneously, thereby ensuring the stability of power supply. At the same time, when one of the power supply devices 9 fails or has no power, it can be directly removed and replaced with other power supply devices 9. During this process, the power supply device 9 that has not failed or has power will continue to supply power, thereby achieving the effect of uninterrupted power switching.

[0033] Preferably, the protective cover 6 and the protective part 61 are made of soft rubber material, such as TPU, PU, ​​silicone, rubber, etc., and the protective cover 6 and the protective part 61 are integrally formed through a mold encapsulation process; the opening corresponding to the first connector 3 is provided in the protective cover 6 to facilitate the connection between the power supply device 8 and the first connector 3.

[0034] Preferably, the connecting member 5 is a cable.

[0035] More specifically, the device is applied to the connection between the pump driver and the host or power supply in the ECMO system, the ECMO system includes a pump driver, a control host and a power supply, the device to be powered 8 is the pump driver, the power supply device 9 is the control host or power supply, wherein the power supply can be a battery, an adapter or other DC power supply device, the first connector 3 is connected to the pump driver, and the second connector 4 is connected to the host or power supply;

[0036] This device can be used to simultaneously connect a host and multiple power supplies, so that the control host and the power supply can simultaneously power the pump driver. When it is necessary to switch the control host or the power supply, the corresponding control host or power supply can be directly disconnected from the corresponding second connector 4 and replaced with a new control host or power supply. During this process, the power supplies or control hosts connected to the other second connectors 4 will continue to power the pump driver, ensuring stable power supply to the pump driver.

[0037] In one embodiment, a light-transmitting portion 7 is provided on the shell 1 , and the light-transmitting portion 7 passes through the shell 1 and the protective cover 6 . The light-transmitting portion 7 is used to guide the light emitted by the control unit 2 , and the number of the light-transmitting portions 7 corresponds to the number of the second connectors 4 .

[0038] In this embodiment, the housing 1 is provided with light-transmitting portions 7, and the number of light-transmitting portions 7 corresponds to the number of second connectors 4, so as to display the connection status of the corresponding second connectors 4. Preferably, the light-transmitting portions 7 are usually made of transparent materials or materials with a certain light transmittance, such as plastic or glass.

[0039] like Figure 3-4 As shown, in one embodiment, the shell 1 includes an upper shell 1a and a lower shell 1b, a first cavity 10 is formed between the upper shell 1a and the lower shell 1b, and the control unit 2 is arranged in the first cavity 10. The control unit 2 is two PCB boards 21, and the two PCB boards 21 are overlapped in the first cavity 10.

[0040] In this embodiment, two PCB boards 21 are arranged in the first cavity 10 in an overlapping manner, in order to reduce the volume of the housing 1. At the same time, the two PCB boards 21 are connected by an FPC flexible cable 22. The FPC flexible cable 22 is electrically connected by direct pressing instead of through a connecting socket. This connection method is more reliable.

[0041] In one embodiment, at least one first glue injection hole 11 is disposed on the housing 1 at a position corresponding to the first cavity 10 .

[0042] In this embodiment, filler is injected into the first cavity 10 through the first glue injection hole 11. The filler is epoxy resin. The purpose is to fill the epoxy resin to protect the PCB board 21, prevent liquid or dust from entering the first cavity 10 and causing damage to the PCB board 21. At the same time, the PCB can be completely fixed to the housing 1 to meet the impact vibration strength requirements. When vibration occurs, the components on the PCB board 21 will not be damaged. Preferably, two first glue injection holes 11 are set, both set on the side wall of the housing 1, one of the first glue injection holes 11 is used for glue injection, and the other is used to exhaust during the glue injection process and observe whether the glue injection is full.

[0043] In one embodiment, the housing 1 , the first connector 3 , the control unit 2 and the connecting member 5 are integrally formed.

[0044] In this embodiment, the shell 1, the first connector 3, the control unit 2 and the connecting piece 5 are connected and placed in a mold, and fixed together by injection molding plastic material to form a whole, so that the shell 1, the first connector 3, the control unit 2 and the connecting piece 5 are integrally formed, which can further improve the dustproof and waterproof effect and stability of the device.

[0045] like Figure 5-6 As shown, in one embodiment, the shell 1 is provided with a first mounting hole 12 corresponding one-to-one to the first connector 3 and a second mounting hole 13 corresponding one-to-one to the connecting member 5, the first connector 3 is snap-fitted to the first mounting hole 12, and the connecting member 5 is provided with a snap-fitting member 51, which is snap-fitted to the second mounting hole 13.

[0046] In this embodiment, the connection is made by snapping, the purpose is to facilitate assembly, and by providing the snap-fitting member 51, the installation of the connector 5 is more stable, the purpose is to prevent the connector 5 from being damaged by the pulling force during use, and to prevent the welding part of the connector 5 from being detached. The first connector 3 is snap-fitted with the first mounting hole 12 through the protrusion on its surface;

[0047] The clamping member 51 is a metal ring, which is sleeved on the cable of the connecting member 5, and then the metal ring is squeezed and deformed by a mold or pliers to be fixed on the cable of the connecting member 5 to form a clamping boss.

[0048] In one embodiment, a second cavity 14 is provided on the housing 1 at a position engaged with the first connector 3 , and at least one second glue injection hole 15 is provided on the housing 1 at a position corresponding to the second cavity 14 .

[0049] In this embodiment, a second cavity 14 is provided on the shell 1 at a position where the first connector 3 is engaged. After the first connector 3 is engaged with the shell 1, a filler is injected into the second cavity 14 through the second glue injection hole 15. The filler is epoxy resin, which can connect and fix the first connector 3 to the shell 1, further improving the stability of the connection between the first connector 3 and the shell 1. In addition, the dust and water proof effect of the inside of the shell 1 can be further improved.

[0050] In one embodiment, a fixing member 16 is disposed at a position inside the housing 1 corresponding to each second mounting hole 13 , and the fixing member 16 is used to fix the connecting member 5 .

[0051] In this embodiment, by respectively arranging a fixing member 16 at a position corresponding to each second mounting hole 13, the fixing member 16 is a clamping block, and a clamping groove is formed between the clamping block and the inside of the shell 1, and the clamping groove is used to clamp the clamping member 51 on the connecting member 5, which can further improve the connection stability of the connecting member 5.

[0052] In one embodiment, a supporting assembly 17 is disposed in the housing 1 , and the supporting assembly 17 is used to support the control unit 2 .

[0053] In this embodiment, a support assembly 17 is provided in the housing 1, and the support assembly 17 is provided corresponding to the two PCB boards 21, so as to respectively install and fix the two PCB boards 21 to prevent displacement when vibration occurs, thereby preventing damage to components on the PCB boards 21.

[0054] The support assembly 17 is composed of a plurality of support bars, which are evenly arranged at both ends of the PCB board 21 .

[0055] In one embodiment, a positioning assembly 18 is disposed between the control unit 2 and the housing 1 . The positioning assembly 18 is used to position the control unit 2 . The positioning assembly 18 is composed of a plurality of positioning columns and positioning holes.

[0056] In this embodiment, a positioning assembly 18 is provided between the control unit 2 and the housing 1 to facilitate the insertion of the positioning post into the positioning hole when the control unit 2 is installed, thereby achieving the effect of positioning the two PCB boards 21 .

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply connection device, characterized in that: It includes a housing, a control unit, a first connector, at least two second connectors, a connecting piece and a protective cover; The control unit is disposed in the housing, the control unit is electrically connected to the first connector, the control unit is electrically connected to the second connector via the connector, and the first connector and the connector are connected via the housing; The outer surface of the shell is covered with the protective cover, and a protective piece corresponding to the connecting piece is provided on one side of the protective cover close to the connecting piece; The first connector is located inside the housing, and the protective sleeve is provided with an opening corresponding to the first connector.

2. The power supply connection device according to claim 1, characterized in that: The housing comprises an upper housing and a lower housing; A first cavity is formed between the upper shell and the lower shell. The control unit is arranged in the first cavity. The control unit is two PCB boards, and the two PCB boards are overlapped in the first cavity.

3. The power supply connection device according to claim 2, characterized in that: At least one first glue injection hole is arranged on the shell at a position corresponding to the first cavity.

4. The power supply connection device according to claim 3, characterized in that: The housing is integrally formed with the first connector, the control unit and the connecting piece.

5. The power supply connection device according to claim 1, characterized in that: The shell is provided with a first mounting hole corresponding to the first connector and a second mounting hole corresponding to the connecting member. The first connector is clamped on the first mounting hole. The connecting member is provided with a clamping member, and the clamping member is clamped with the second mounting hole.

6. The power supply connection device according to claim 5, characterized in that: A second cavity is provided on the shell at a position engaged with the first connector, and at least one second glue injection hole is provided on the shell at a position corresponding to the second cavity.

7. The power supply connection device according to claim 6, characterized in that: A fixing piece is respectively arranged at a position inside the shell corresponding to each of the second mounting holes, and the fixing piece is used to fix the connecting piece.

8. The power supply connection device according to claim 1, characterized in that: A supporting assembly is arranged in the shell, and the supporting assembly is used to support the control unit.

9. The power supply connection device according to claim 1, characterized in that: A positioning assembly is provided between the control unit and the housing, and the positioning assembly is used to position the control unit.

10. The power supply connection device according to claim 1, characterized in that: The shell is provided with a light-transmitting portion, which passes through the shell and the protective cover and is used to guide the light emitted by the control unit. The number of the light-transmitting portions corresponds to the number of the second connectors.

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