Power conversion module and power supply device

Abstract

The application relates to the technical field of power conversion, in particular to a power conversion module and a power supply device. The power conversion module comprises a box body, a substrate and a connecting end; the substrate is provided with a power conversion circuit and a control circuit, the control circuit is used for controlling the working state of the power conversion circuit; the connecting end comprises a shell, a connecting conductor and a trigger switch, the shell is fixed to the box body and part of the shell is exposed to the box body, the shell comprises a first opening cavity used for inserting a cable, and the opening of the first opening cavity is located at the end face of the shell away from the box body; one end of the connecting conductor extends into the first opening cavity for connecting the cable, the other end of the connecting conductor is exposed to the shell for connecting the substrate and connecting the power conversion circuit; when the cable is connected to the connecting conductor, the trigger switch is used for connecting the substrate for controlling the control circuit to be turned on. The power conversion module integrates the cable connection function and the circuit switch function, the output efficiency of the power conversion module can be increased, and the circuit safety can be ensured.

Description

Technical Field

[0001] This application relates to the field of power conversion technology, and in particular to a power conversion module and power supply equipment. Background Technology

[0002] In the power supply field, power conversion modules are used to convert electrical energy. These modules are connected to cables via quick-connect connectors. However, quick-connect connectors have low rated current capacity and are bulky, making them unsuitable for the high-power input / output demands of power supply equipment. Furthermore, the mating contact resistance between the board and wire ends of quick-connect connectors reduces the overall output efficiency of the power module. Utility Model Content

[0003] This application provides a power conversion module and a power supply device. The power conversion module integrates cable connection function and circuit switching function, which can increase the output efficiency of the power conversion module while ensuring circuit safety.

[0004] In a first aspect, this application provides a power conversion module, which includes a housing, a substrate, and a connection terminal. The substrate is housed within the housing and is provided with a power conversion circuit and a control circuit. The control circuit is used to control the operating state of the power conversion circuit. The connection terminal includes a housing, a connecting conductor, and a trigger switch. The housing is fixed to the housing and a portion of the housing protrudes from the housing. The housing includes a first opening for inserting a cable, and the opening of the first opening is located on the end face of the housing facing away from the housing. One end of the connecting conductor extends into the first opening to connect a cable, and the other end of the connecting conductor protrudes from the housing to connect to the substrate and to the power conversion circuit. When the cable is connected to the connecting conductor, the trigger switch is used to connect to the substrate to control the control circuit to conduct.

[0005] The aforementioned power conversion module integrates cable connection functionality via a connector, eliminating the need for additional adapters. The connecting conductor, attached to the substrate and integrated into the power conversion circuit, reduces contact resistance, increases current carrying capacity, and consequently improves input and output efficiency. When the cable connects to the power conversion circuit via the connector, a trigger switch controls the conduction of the control circuit, which in turn controls the power conversion circuit's operation. The trigger switch ensures that the connecting conductor is not energized during cable insertion, guaranteeing safe wiring under no-voltage conditions. The overall power conversion module boasts higher integration and reduces the number of components in the power conversion circuit connections.

[0006] In one embodiment, the trigger switch includes a first terminal, a second terminal, and a sliding rod; the first terminal is fixed to a substrate and electrically connected to a control circuit; the sliding rod is slidably connected to a housing, and the second terminal is fixed to the sliding rod and electrically connected to the control circuit; when the sliding rod slides relative to the housing, the second terminal is used to connect or disconnect from the first terminal, and the operator can control the on / off state of the control circuit by operating the sliding rod. The sliding connection between the sliding rod and the housing reduces the difficulty for the operator to operate the trigger switch.

[0007] In one embodiment, the connection end further includes a locking mechanism and a movable baffle. The locking mechanism is used to lock the connection between the cable and the connecting conductor. The locking mechanism is installed inside a housing, which includes a window exposing the locking mechanism. One end of the movable baffle is rotatably connected to a sliding rod, and the other end of the movable baffle is used to extend between the locking mechanism and the window. When the second terminal is connected to the first terminal, the movable baffle at least partially obstructs the space between the locking mechanism and the window. During the operation of the sliding rod, the movable baffle can be driven to expose or obstruct the locking mechanism through structural linkage, preventing operators from operating the locking mechanism when the control circuit is in a conductive state, thus increasing the safety of the circuit connection.

[0008] In one embodiment, the housing includes a partition that separates the sliding rod from the locking mechanism. Along the sliding direction of the sliding rod relative to the housing, the end face of the partition facing the window forms a support surface, a portion of which is located between the locking mechanism and the inner wall of the housing. When the movable baffle at least partially obstructs the space between the locking mechanism and the window, the end of the movable baffle away from the sliding rod abuts against the support surface. The support surface provides structural support for the movable baffle, reducing the risk of it being violently damaged.

[0009] In one embodiment, the locking mechanism includes a drive member and a cam; the cam is rotatably mounted within a first opening, with its rotation axis perpendicular to the direction in which the cable is inserted into the first opening; a gap exists between the circumferential surface of the cam and the connecting conductor to allow the cable wire to extend into it, and the circumferential surface of the cam includes a protrusion; the drive member is movably connected to the housing in a direction perpendicular to the rotation axis, and the drive member abuts against the circumferential surface of the cam, with one end of the drive member facing away from the cam facing a window; when the drive member moves relative to the housing towards the cam, it pushes the cam to rotate so that the protrusion approaches the connecting conductor to press against the cable. The drive member pushes the cam to rotate about its rotation axis, changing the distance between the cam protrusion and the connecting conductor, so that the protrusion can apply a clamping force to the cable wire extending between the cam and the connecting conductor, thereby making the cable wire and the connecting conductor in close contact to achieve a circuit connection.

[0010] In one embodiment, the driving component is a threaded component, which is threadedly connected to the housing. The axis of the threaded component is parallel to the direction in which the cable is inserted into the first opening. Rotating the threaded component allows it to move relative to the housing along the direction in which the cable is inserted into the first opening. Due to the self-locking function of the threaded component, the cam can maintain the state of pressing the wire tightly against the connecting conductor, ensuring a reliable connection.

[0011] In one embodiment, the circumferential surface of the cam includes a recess for the drive component to abut against, ensuring good contact between the drive component and the circumferential surface of the cam to guarantee force transmission. Along a direction perpendicular to the rotation axis, the recess and protrusion are arranged on both sides of the rotation axis, ensuring that the force exerted on the cam by the threaded component can drive the cam to rotate.

[0012] In one embodiment, the surface of the protrusion facing away from the rotation axis includes multiple teeth, which are used to press against the wire of the cable, increasing the friction between the protrusion and the wire and enhancing the clamping and locking effect.

[0013] In one embodiment, the housing includes a second opening located on the end face of the housing opposite to the enclosure. A sliding rod is slidably connected to the second opening. A first terminal is fixed to the wall surface of the second opening away from the opening, and a second terminal is fixed to the end of the sliding rod facing the wall surface of the second opening. The first and second terminals are opposite each other along the sliding direction of the sliding rod. Along the sliding direction of the sliding rod relative to the second opening, the orthographic projection of the first terminal on the sliding rod at least partially overlaps with the second terminal. The height of the first terminal protruding from the wall surface is greater than or equal to the sum of the maximum distance the sliding rod extends into the second opening and the height of the second terminal protruding from the sliding rod. As the sliding rod reciprocates relative to the second opening, the first and second terminals move closer or further apart. The sliding rod provides force support for the connection between the first and second terminals, improving connection reliability. The openings of the first and second openings are located on the same end face of the housing, which facilitates a reduction in the size of the connection end perpendicular to the cable insertion direction and also makes operation easier for staff.

[0014] In one embodiment, along the sliding direction of the sliding rod relative to the second opening, the sum of the height of the first terminal protruding from the wall and the maximum distance the sliding rod extends into the second opening is less than or equal to the depth of the first opening. When the sliding rod slides into the second opening to its maximum distance, the sliding rod will not contact the first terminal, preventing the sliding rod from impacting the first terminal and causing damage.

[0015] In one embodiment, along the sliding direction of the sliding rod relative to the second opening, the end of the second terminal facing the first terminal includes two mutually abutting elastic clips, and the first terminal is used to insert between the two elastic clips. Inserting the first terminal between the two elastic clips enables the connection between the first terminal and the second terminal. The two elastic clips have a certain preload force, which can more securely clamp the first terminal, ensuring reliable connection.

[0016] In one embodiment, the distance between the second opening and the substrate is greater than the distance between the first opening and the substrate along the direction perpendicular to the substrate; when the cable is inserted into the first opening, the cable drooping under gravity will not affect the operator's operation of the trigger switch. The first and second openings are arranged adjacent to each other along the direction parallel to the substrate, which is beneficial for reducing the size of the connection end perpendicular to the cable insertion direction.

[0017] In one embodiment, along the direction in which the sliding rod slides relative to the second opening, the second opening includes a first limiting surface and a second limiting surface opposite to each other. The distance between the first limiting surface and the first terminal is smaller than the distance between the second limiting surface and the first terminal. The circumferential surface of the sliding rod includes a first protrusion. The first protrusion is located between the first limiting surface and the second limiting surface along the direction in which the sliding rod slides relative to the second opening. When the second terminal is connected to the first terminal, the first protrusion abuts against the first limiting surface to prevent the sliding rod from impacting the first terminal and causing damage.

[0018] In one embodiment, along the direction in which the sliding rod slides relative to the second opening, the distance between the end of the sliding rod fixing the second terminal and the first protrusion is greater than the distance between the first limiting surface and the second limiting surface, and the distance between the end of the sliding rod away from the second terminal and the first protrusion is greater than the distance between the first limiting surface and the second limiting surface. This ensures that the sliding rod can maintain a stable sliding connection with the second opening, protecting the components of the trigger switch.

[0019] In one embodiment, the circumferential surface of the sliding rod includes a second protrusion that is in frictional contact with a second opening. The inner wall of the second opening includes a limiting groove for accommodating the second protrusion. When the second terminal is connected to the first terminal, the second protrusion slides into the limiting groove. This prevents movement of the sliding rod from affecting the reliable connection between the first and second terminals. When the second protrusion slides into the limiting groove, the operator can feel the change in the sliding state, thus knowing that the first and second terminals have been connected.

[0020] In one embodiment, the housing includes a bottom shell and a top cover. A connecting conductor and a trigger switch are mounted on the bottom shell, with a portion of the trigger switch protruding from the end face of the bottom shell facing away from the housing. Along a direction perpendicular to the substrate, the projection of the top cover onto the bottom shell covers the projection of the trigger switch onto the bottom shell. This prevents accidental activation or damage to the trigger switch when debris falls on it.

[0021] Secondly, this application provides a power supply device, which includes a DC bus, multiple AC-to-DC modules, and any of the power conversion modules provided in the first aspect; the output terminal of each AC-to-DC module is electrically connected to the power conversion module via the DC bus. The AC-to-DC module can convert AC power into DC power and supply it to the power conversion module via the DC bus.

[0022] In one embodiment, the power supply equipment further includes a battery or a photovoltaic system, and the power conversion module is connected to the output terminal of the battery or the DC output terminal of the photovoltaic system. The battery or photovoltaic system can supply power to the power conversion module, and the power conversion module can supply electrical energy to the battery or photovoltaic system for energy storage. In this case, the power conversion module can be a DC-to-DC module, which is more efficient and safer when connected to the battery or photovoltaic system to achieve bidirectional DC-DC conversion. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connection cable of a power conversion module in the prior art;

[0024] Figure 2 This application provides a partial structural schematic diagram of a power supply device;

[0025] Figure 3a This application provides a schematic diagram of the structure of a power conversion module;

[0026] Figure 3b This application provides a partial structural schematic diagram of a power conversion module according to an embodiment;

[0027] Figure 4a A schematic diagram of the connection terminal of a power conversion module is provided in the application embodiment;

[0028] Figure 4b A schematic diagram of the connection terminal of a power conversion module is provided in the application embodiment;

[0029] Figure 4c A schematic diagram of the circuit structure of a power conversion module provided in the application embodiment;

[0030] Figure 5a A schematic diagram of the connection terminal of a power conversion module is provided in the application embodiment;

[0031] Figure 5b A partial structural diagram of the connection end of a power conversion module is provided in the application embodiment;

[0032] Figure 6 A partial structural diagram of the connection end of a power conversion module is provided in the application embodiment;

[0033] Figure 7 A schematic diagram of the connection cable of a power conversion module provided in the application embodiment;

[0034] Figure 8a A partial structural diagram of the connection end of a power conversion module is provided in the application embodiment;

[0035] Figure 8b A partial structural diagram of the connection end of a power conversion module is provided in the application embodiment;

[0036] Figure 9 A partial structural diagram of the connection end of a power conversion module is provided in the application embodiment;

[0037] Figure 10a A partial structural schematic diagram of a power conversion module is provided in the application embodiment;

[0038] Figure 10b A partial structural schematic diagram of a power conversion module is provided in the application embodiment;

[0039] Figure 11a A partial structural schematic diagram of a power conversion module is provided in the application embodiment;

[0040] Figure 11b A partial structural schematic diagram of a power conversion module provided in the application embodiment.

[0041] Figure label:

[0042] 01-DC to DC power module; 02-Cable; 021-Wire; 03-Quick connector; 031-Board end; 032-Wire end;

[0043] 100 - Power supply equipment; 200 - Load; 300 - Battery;

[0044] 10 - DC to DC module; 20 - AC to DC module; 30 - DC busbar;

[0045] 1-Casing; 2-Baseboard; 3-Connecting end; 4-Cooling fan;

[0046] 31-House; 311-Bottom shell; 3111-Bottom plate; 3112-Side plate; 312-Top cover; 3121-Protruding cover; 313-Partition; 32-Connecting conductor; 321-Conductor pin; 322-Conductor section; 33-Trigger switch; 331-First terminal; 332-Second terminal; 333-Sliding rod; 3331-First protrusion; 34-Locking mechanism; 341-Moving part; 342-Driver; 35-Moving baffle;

[0047] c - recessed portion; p - second protrusion; q - wall surface; t - protrusion; w1 - first limiting surface; w2 - second limiting surface; v - limiting groove; D - terminal pin; K - window; M - bearing surface; Q1 - first opening; Q2 - second opening; R - rotating shaft. Detailed Implementation

[0048] Power supply equipment can convert AC input current into DC output to power the load. This equipment is equipped with a DC-DC power module to achieve bidirectional current conversion. Currently, the DC-DC module is connected to the load cable via a quick-connect connector. Figure 1 As shown, the quick-connect connector 03 includes a board end 031 and a wire end 032. The board end 031 is soldered to the circuit board of the DC-to-DC power module 01, and the wire end 032 is used for on-site connection with the cable 02 and then plugged into the board end 031. This quick-connect connector is a split structure, which is relatively large. The current carrying capacity is small and there is contact resistance when connected by plugging, which cannot meet the high input and output requirements of power supply equipment.

[0049] Based on this, the present application provides a power conversion module and a power supply device. The power conversion module integrates the function of directly plugging in cables and controls the working state of the power conversion circuit through a trigger switch to ensure the safety of the circuit connection.

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0051] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates otherwise.

[0052] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0053] Mobile terminals, such as mobile phones, access the internet via base stations, thereby enabling wireless communication between the mobile terminal and the internet. This application provides a power supply device that can be applied to base stations, such as... Figure 2 As shown, the base station may include a power supply device 100 and a plurality of loads 200. The power supply device 100 is electrically connected to each load 200 to provide power to each load 200. Exemplarily, the plurality of loads 200 include at least one remote radio unit (RRU) and an active antenna unit (AAU). The power supply device 100 is capable of converting input AC mains power into DC power to supply various digital and signal processing circuits in each load 200.

[0054] The power supply equipment 100 includes multiple alternating current-to-direct current (AC-DC) modules 20 and direct current-to-direct current (DC-DC) modules 10. Each AC-DC module 20 can receive AC power and convert it into DC power, while the DC-DC module 10 can convert DC power into DC power to supply the load. The DC-DC module 10 is connected to the multiple AC-DC modules 20 via a DC bus 30, and the output terminal of each AC-DC module 20 is connected to the DC-DC module 10 via the DC bus 30.

[0055] In some embodiments, the base station is equipped with a battery 300, which can supply power to the power supply device 100, and the power supply device 100 can also store electrical energy in the battery 300.

[0056] As another specific example, such as Figure 2As shown, battery 300 is connected to DC bus 30. DC to DC module 10 and AC to DC module 20 can output DC power to battery 300 for storage through DC bus, and battery 300 can supply power to DC to DC module 10 through DC bus 30.

[0057] by Figure 2 The power supply equipment shown is an example. The DC-to-DC module 10 is a bidirectional DC-to-DC converter, specifically a bidirectional DC-to-DC module, which can be connected to the load via cables.

[0058] In some embodiments, the battery 300 can be an integral part of the power supply device 100, that is, the power supply device 100 itself includes the battery 300. Integrating the battery 300 into the power supply device 100 itself can enable the power supply device 100 to have energy storage function and optimize power supply performance.

[0059] In some embodiments, the battery 300 may also be replaced by a photovoltaic system, which can supply electrical energy to the power supply equipment 100 and also provide energy storage for the power supply equipment 100.

[0060] As described above regarding the basic architecture of the power supply equipment 100, the power supply equipment 100 can be applied to base stations, industrial robots, rail transit (such as subways and high-speed trains) or special power supplies (such as ships, airplanes, and vehicles). Any device that can use the power supply equipment 100 is within the scope of protection claimed in the embodiments of this application, and no strict limitations are imposed on it.

[0061] Figure 3a This is a schematic diagram of the structure of a power conversion module provided in an embodiment of this application. Figure 3b This is a partial structural diagram of the power conversion module. This power conversion module can be used as... Figure 2 The DC-to-DC converter 10 is integrated into the power conversion module and connected to a battery 300 or other DC power source (such as DC power output from a photovoltaic system) via cables. The power conversion module includes a housing 1, a substrate 2, and a connection terminal 3. The connection terminal 3 is used to connect cables, thereby connecting loads or other electronic devices. The substrate 2 is housed within the housing 1, and the connection terminal 3 is mounted on the housing 1 and connected to the substrate 2. This power conversion module integrates cable connection functionality via the connection terminal 3, eliminating the need for additional adapter connectors. The overall power conversion module exhibits higher structural integration, reducing the number of components in the power conversion circuit connections.

[0062] like Figure 3a and Figure 3bAs shown, the housing 1 is exemplary in a cuboid shape. A three-dimensional coordinate system is established with reference to the structure of housing 1 to exemplarily describe the power conversion module provided in this application embodiment. This three-dimensional coordinate system includes a first direction X, a second direction Y, and a third direction Z, all perpendicular to each other. The third direction Z represents the height direction of housing 1; in the assembly of the power conversion module, the third direction Z can be a direction perpendicular to the ground. The first direction X is one of the length and width directions of housing 1, and the second direction Y is the other of the length and width directions of housing 1. In one embodiment, a connecting end 3 is installed on one side of housing 1 along the first direction X. One end of the connecting end 3 protrudes outside housing 1, and the other end is housed inside housing 1 to connect to the substrate 2. The protruding end of the connecting end 3 is used to connect a cable, which can be plugged into the connecting end 3 along the first direction X.

[0063] Specifically, substrate 2 may be equipped with a power conversion circuit, such as a unidirectional DC-to-DC circuit or a bidirectional DC-to-DC circuit. Substrate 2 also includes a control circuit that controls the operating state of the power conversion circuit. Substrate 2 can be connected to a cable via connector 3 to enable current input or output to the power conversion circuit. When the cable is connected to the power conversion circuit via connector 3, connector 3 can trigger the control circuit to generate a signal controlling the operation of the power conversion circuit.

[0064] In one embodiment, please continue to refer to Figure 3a and Figure 3b As shown, the power conversion module also includes a cooling fan 4, which is fixed to one end of the housing 1 and can dissipate heat from the substrate 2 inside the housing 1 by means of air cooling.

[0065] Figure 4a and Figure 4b This is the structure of connection terminal 3 in the power conversion module provided in the embodiment of this application. Figure 4a and Figure 4b The structure of the connecting end 3 is observed from two opposite directions along the third direction Z.

[0066] like Figure 4a As shown, the connection end 3 includes a housing 31 and a connecting conductor 32 and a trigger switch 33 assembled in the housing 31. The housing 31 provides structural support for the connecting conductor 32 and the trigger switch 33. Figure 3a and Figure 3bAs shown, housing 31 is assembled into enclosure 1, with a portion of housing 31 protruding from enclosure 1. When connection end 3 is installed in enclosure 1, one end of connecting conductor 32 extends out of housing 31 of connection end 3 and is fixed to substrate 2. Connecting conductor 32 can connect to the power conversion circuit through connection with substrate 2, and the other end of connecting conductor 32 is used to connect cables. Specifically, connecting conductor 32 includes conductor pins 321 protruding from housing 31, through which connecting conductor 322 can connect to substrate 2. Specifically, connecting conductor 32 can be a copper busbar, and conductor pins 321 of connecting conductor 32 can be directly connected to substrate 2 by soldering. Direct electrical connection of connecting conductor 32 to substrate 2 by soldering or other methods can improve current carrying capacity. Direct connection of connecting conductor 32 to substrate 2 eliminates the need for intermediate transfer structures, which helps to reduce the overall size of the power conversion module. Alternatively, with the same power conversion module volume, the direct connection between the connecting conductor 32 and the substrate 2 eliminates the need for intermediate transfer structures, allowing for a larger layout space within the housing 1. The substrate 2 can then utilize this larger space for a more rational layout to meet the performance upgrade needs of the power conversion module.

[0067] During on-site construction, workers only need to insert the cable into connector 3 to connect the cable to the power conversion circuit. This process may pose safety hazards. Therefore, in the power conversion module provided in this embodiment, a trigger switch 33 is provided at connector 3. The trigger switch 33 is mounted on housing 31 and includes a terminal pin D protruding from housing 31. The trigger switch 33 can be electrically connected to the control circuit of substrate 2 through this terminal pin D. When the cable is connected to connector 32, the trigger switch 33 triggers the control circuit to conduct, generating a signal to control the power conversion circuit. The action of triggering the control circuit to conduct or deconvert via the trigger switch 33 can be achieved by worker operation. To facilitate worker operation of the trigger switch 33, at least a portion of the trigger switch 33 protrudes outside housing 31.

[0068] In one specific implementation, along the first direction X, a portion of the trigger switch 33 protrudes from the end face of the housing 31 facing away from the enclosure 1. When the cable is inserted into the connection terminal 3, the cable can achieve a physical connection with the power conversion circuit through the connecting conductor 32 and the substrate 2, but the power conversion circuit is not yet conductive. At this time, the operator needs to operate the trigger switch 33. The trigger switch 33 activates the control circuit, which generates a signal to activate the power conversion circuit, allowing the power conversion circuit to conduct and transmit current. The trigger switch 33 ensures that the connecting conductor 32 of the connection terminal 3 is not energized during cable insertion, ensuring that the operator can connect the cable without voltage and guaranteeing the operator's safety when connecting electricity.

[0069] In one embodiment, the housing 31 includes a first opening Q1, the opening of which is located on the end face of the housing 31 opposite to the housing 1. The first opening Q1 is used for cable insertion, and when the cable is inserted into the first opening Q1, the direction of insertion is parallel to a first direction X. The first opening Q1 and the trigger switch 33 are located at one end of the housing 31 opposite to the housing 1 along the first direction X. When the operator plugs the cable into the power conversion module, the operator can perform cable insertion and switch triggering operations on the same side of the connection end 3, providing convenience for the operator. The cable is inserted into the first opening Q1 to connect the connecting conductor 32; therefore, at least a portion of the connecting conductor 32 extends into the first opening Q1 to achieve the connection between the connecting conductor 32 and the cable.

[0070] As a specific example, the connector 3 is used to connect two cables. The housing 31 is provided with two first openings Q1, which are arranged adjacently along the second direction Y, with a certain interval between them. When the power conversion circuit of the power conversion module is connected to the positive and negative terminals of the power supply through two connecting conductors 32, it includes two connecting conductors 32. One first opening Q1 can accommodate one connecting conductor 32, through which the positive cable is connected to the positive terminal of the power conversion circuit. The other first opening Q1 can accommodate the other connecting conductor 32, through which the negative cable is connected to the negative terminal of the power conversion circuit.

[0071] It should be understood that each first opening Q1 is used for inserting a cable into and connecting a connecting conductor 32. In the embodiments described below, the scheme in which one of the first openings Q1 is used for inserting a cable into and connecting a connecting conductor 32 is described as an example, and the other first openings Q1 used for inserting a cable into and connecting a connecting conductor 32 can be applied by reference.

[0072] In one embodiment, the housing 31 includes a bottom shell 311 and a top cover 312. The connecting conductor 32 and the trigger switch 33 are both mounted on the bottom shell 311, and the top cover 312 is fixed to the top of the bottom shell 311 along the third direction Z. Along the third direction Z, the projection of the top cover 312 onto the bottom shell 311 can cover the trigger switch 33. When the connecting end 3 is installed in the housing 1, the top cover 312 is fixed above the bottom shell 311 along the third direction Z. If debris falls above the power conversion module along the third direction Z, the top cover 312 can provide a certain degree of safety protection for the trigger switch 33, preventing accidental activation or damage to the trigger switch 33 when the debris falls.

[0073] Specifically, such as Figure 4a and Figure 4bAs shown, the bottom shell 311 includes a bottom plate 3111 and two side plates 3112 facing each other along the second direction Y. The two side plates 3112 are connected to both sides of the bottom plate 3111 along the second direction Y. When the connecting end 3 is installed in the housing 1, the bottom plate 3111 faces the substrate 2. Along the first direction X, the top cover 312 faces the bottom plate 3111. Along the third direction Z, the conductor pin 321 of the connecting conductor 32 for connecting the substrate 2 protrudes from the outer surface of the bottom plate 3111 away from the top cover 312, and the terminal pin D of the trigger switch 33 for connecting the substrate 2 protrudes from the outer surface of the bottom plate 3111 away from the top cover 312. When the connecting end 3 is installed in the housing 1, the side of the bottom plate 3111 away from the top cover 312 faces the substrate 2, and the conductor pin 321 of the connecting conductor 32 and the terminal pin D of the trigger switch 33 face the substrate 2. The conductor pin 321 and the terminal pin D can be directly connected to the substrate 2 with a shorter path, improving connection reliability and reducing layout space. In some embodiments, the larger space within the housing 1 can be used to arrange more circuit connections, thereby improving product performance.

[0074] In one embodiment, such as Figure 4a and Figure 4b As shown, the top cover 312 includes a protruding cover 3121, which protrudes from the bottom shell 311 for connecting cables. When the connection end 3 is installed in the housing 1, when viewed from the top cover 312 side along the third direction Z, the protruding cover 3121 can cover the part of the trigger switch 33 that is exposed in the bottom shell 311, thus protecting the trigger switch 33.

[0075] Please continue to refer to Figure 4a and Figure 4b As shown, the top cover 312 partially covers the two side walls of the bottom shell 311 along the second direction Y. When the connecting end 3 is installed on the housing 1, the top cover 312 can cover the top of the bottom shell 311 along the third direction Z, and can also partially cover a portion of the two side walls 3122 of the bottom shell 311 along the second direction Y, thus providing better protection. Figure 4c This is a schematic diagram of the circuit structure of the power conversion module. Figure 4c As shown, the connecting conductor 32 of the connecting end 3 is connected to the power conversion circuit of the substrate 2, and the trigger switch 33 of the connecting end 3 is connected to the control circuit of the substrate 2. When the cable passes through the connecting conductor 32 to the power conversion circuit, the trigger switch 33 can control the circuit to conduct and generate a signal to control the operation of the power conversion circuit.

[0076] The power conversion module provided in this application integrates the connection terminal 3 for connecting cables into the housing 1 and electrically connects it to the substrate 2. The connecting conductor 32 is directly connected to the substrate 2, which reduces the contact resistance of the electrical connection and improves the reliability of the electrical connection. The integrated structure of the connection terminal 3 with the housing 1 and the substrate 2 reduces the number of components in the power conversion module, thus reducing costs. The power conversion module as a whole can be directly plugged into the cable without the need for an additional connector. Compared with the traditional male-female plug-in connector connection method, the physical connection process of the power conversion circuit eliminates the need for the connector to be plugged into the substrate 2, reducing the contact resistance during the electrical connection process, which can improve the current carrying capacity of the power conversion module, thereby improving the input and output efficiency of the power conversion module. The reduction in contact resistance can also reduce the heat generation of the power module, which is beneficial to improving the efficiency of the module. Through the cooperation of the trigger switch 33 and the control circuit, the connection between the cable directly inserted into the connection terminal 3 and the connecting conductor 32 is protected against voltage fluctuations, which enhances safety.

[0077] Figure 5a This is an exploded view of a portion of the connection end structure of the power conversion module provided in an embodiment of this application. (See attached image.) Figure 5a As shown, in one embodiment, the trigger switch 33 is a push-button switch. Specifically, the trigger switch 33 includes a first terminal 331, a second terminal 332, and a sliding rod 333. One end of the first terminal 331 extends out of the bottom shell 311 away from the outer surface of the top cover 312 to be fixed to the substrate 2, so that the first terminal 331 is electrically connected to the control circuit through the substrate 2. The other end of the first terminal 331 is located inside the bottom shell 311. The sliding rod 333 is slidably connected to the shell 31. One end of the second terminal 332 is fixed to the sliding rod 333 to connect to the first terminal 331, and the other end of the second terminal 332 extends out of the bottom shell 311 away from the outer surface of the top cover 312 to be fixed to the substrate 2 and electrically connected to the control circuit. When the sliding rod 333 slides relative to the shell 31, the second terminal 332 is used to connect or disconnect from the first terminal 331. When the second terminal 332 contacts the first terminal 331, the control circuit is activated, generating a signal to activate the power conversion circuit. This allows the cable to transmit current through the connecting conductor 32. When the second terminal 332 separates from the first terminal 331, the control circuit is deactivated, disconnecting the power conversion circuit. The cable can no longer transmit current through the connecting conductor 32.

[0078] The sliding rod 333 is made of insulating material, which increases the safety of operators when using the trigger switch 33. The sliding connection between the sliding rod 333 and the housing 31 reduces the difficulty of operation for operators.

[0079] Specifically, the housing 31 includes a second opening Q2, the opening of which is located on the same end face as the opening of the first opening Q1. Along the first direction X, a sliding rod 333 is slidably connected to the second opening Q2, one end of which is always exposed outside the opening of the first opening Q1, and the other end of which is always inside the second opening Q2.

[0080] In one embodiment, a first terminal 331 is fixed to the wall surface q of the second opening Q2 away from the opening, and a second terminal 332 is fixed to the end of a sliding rod 333 facing the wall surface q of the second opening Q2. When the sliding rod 333 moves relative to the second opening Q2 along a first direction X toward the side closer to the first terminal 331, the second terminal 332 gradually approaches the first terminal 331 until the second terminal 332 and the first terminal 331 connect to form a control circuit loop. When the sliding rod 333 moves relative to the second opening Q2 along the first direction X away from the first terminal 331, the second terminal 332 gradually moves away from the first terminal 331 until the first terminal 331 and the second terminal 332 separate, and the control circuit is disconnected. As the sliding rod 333 slides back and forth relative to the second opening Q2, the first terminal 331 and the second terminal 332 move closer or further apart, and the sliding rod 333 provides force support for the connection between the first terminal 331 and the second terminal 332, improving connection reliability.

[0081] In one embodiment, along the third direction Z, the distance between the second opening Q2 and the bottom plate 3111 of the bottom shell 311 is greater than the distance between the first opening Q1 and the bottom plate 3111 of the bottom shell 311. Alternatively, along the third direction Z, the distance between the second opening Q2 and the substrate 2 is greater than the distance between the first opening Q1 and the substrate 2. When the connecting end 3 is installed in the housing 1, the distance between the second opening Q2 and the substrate 2 is greater than the distance between the first opening Q1 and the substrate 2. When the cable is inserted into the first opening Q1, the cable drooping under gravity will not affect the operator's operation of the trigger switch 33.

[0082] Along the second direction Y, the first opening Q1 and the second opening Q2 are arranged adjacent to each other. The direction in which the cable is inserted into the first opening Q1 can remain parallel to the sliding direction of the sliding rod 333 relative to the second opening Q2. The movement space of the cable relative to the first opening Q1 and the sliding space of the sliding rod 333 relative to the second opening Q2 can share the dimension along the first direction X of the connecting end 3. This is beneficial for reducing the size of the connecting end 3 in the direction perpendicular to the first direction X, and also facilitates operation by the staff.

[0083] Please continue to refer to Figure 5aAs shown, the connection end 3 includes a locking mechanism 34, which is located inside the first opening Q1. The locking mechanism 34 is used to lock the connection between the cable and the connecting conductor 32. In one embodiment, taking one first opening Q1 as an example, when the cable is inserted into the first opening Q1, the locking mechanism 34 is used to securely connect the cable conductor to the connecting conductor 32, ensuring the reliability of the electrical connection.

[0084] In one embodiment, the locking mechanism 34 is an operable mechanism. When connecting the cable at the connecting end 3, the operator needs to operate the locking mechanism 34 to lock the cable to the connecting conductor 32. The housing 31 includes a window K. In actual operation, the operator can operate the locking mechanism 34 through the window K, so that the locking mechanism 34 can connect the cable conductor to the connecting conductor 32.

[0085] In one specific embodiment, the window K and the opening of the first oral cavity Q1 are located on the same side of the housing 31. Along the first direction X, the locking mechanism 34 is housed within the first oral cavity Q1, with the locking mechanism 34 protruding from the window K. Operators can operate the locking mechanism 34 through the window K. Operations such as connecting cables, locking cables and connecting conductors 32, and controlling the trigger switch 33 can all be performed on the same side of the housing 31, reducing the difficulty of the work.

[0086] As a specific structural example, the locking mechanism 34 includes a driving member 342 and a movable member 341, the movable member 341 being movably mounted within the first opening Q1. Since the first opening Q1 is used for cable insertion and connection to the connecting conductor 32, and the movable member 341 is configured to change the relative positional relationship between the cable and the connecting conductor 32 when moving relative to the bottom shell 311 within the first opening Q1, it effectively locks the cable to the connecting conductor 32. The driving member 342 is configured to face the window K, allowing operators to easily operate the driving member 342 through the window K, adjusting the movement of the movable member 341 to meet the connection requirements between the cable and the connecting conductor 32.

[0087] Figure 5b A partial structural diagram of the trigger switch 33 and the base shell 311 is shown below. Please refer to the diagram for further details. Figure 5a and Figure 5bAs shown, along the sliding direction of the sliding rod 333 relative to the second opening Q2, the orthographic projection of the first terminal 331 on the sliding rod 333 at least partially overlaps with the second terminal 332. The height h1 of the first terminal 331 protruding from the wall surface q is greater than or equal to the sum of the maximum distance h3 from which the sliding rod 333 extends into the second opening Q2 and the height h1 of the second terminal 332 protruding from the sliding rod 333. The sliding rod 333 slides a certain distance into the second opening Q2, allowing the first terminal 331 and the second terminal 332 to contact each other and achieve connection.

[0088] Please continue to refer to Figure 5b As shown, along the sliding direction of the sliding rod 333 relative to the second opening Q2, the sum h3 of the height h1 of the first terminal 331 protruding from the wall surface q and the maximum distance h3 of the sliding rod 333 extending into the second opening Q2 is less than or equal to the depth H of the second opening Q2. When the sliding rod 333 slides into the second opening Q2 to its maximum distance, the sliding rod 333 will not contact the first terminal 331, preventing the sliding rod 333 from impacting the first terminal 331 and avoiding damage to the first terminal 331 from the impact of the sliding rod 333.

[0089] like Figure 5b As shown, in one embodiment, a first terminal 331 and a second terminal 332 are connected by an insertion connection. The end of the first terminal 331 facing the second terminal 332 is needle-shaped or plate-shaped. The end of the second terminal 332 facing the first terminal 331 includes two elastic clips. The two elastic clips are symmetrically bent, and the bent portions of the two elastic clips abut against each other with a certain pre-compression force. The first terminal 331 can extend between the two elastic clips of the second terminal 332 to achieve the connection between the first terminal 331 and the second terminal 332. When the first terminal 331 extends between the two elastic clips of the second terminal 332, the bent portions of the two elastic clips tend to move closer to each other, thereby clamping the first terminal 331 more securely and ensuring the reliability of the connection between the first terminal 331 and the second terminal 332.

[0090] Figure 6 This application provides a partial structure of a connection end 3, and the partial structure of the connection end 3 is exemplified by a specific structural form.

[0091] To facilitate operation of the trigger switch 33 by staff, such as Figure 6As shown, the end of the sliding rod 333 protruding from the housing 31 is provided with a status indicator for the trigger switch 33. Specifically, along the sliding direction of the sliding rod 333 relative to the housing 31, when the length of the sliding rod 333 protruding from the housing 31 is relatively large, the first terminal 331 and the second terminal 332 are separated, indicated as "OFF", meaning the control circuit is disconnected. When the length of the sliding rod 333 protruding from the housing 31 is relatively small, the first terminal 331 and the second terminal 332 are in contact, indicated as "ON", meaning the control circuit is connected.

[0092] This application provides a locking mechanism 34 in a connection terminal 3 for reliably connecting the cable conductor to the connecting conductor 32. In one embodiment, such as... Figure 6 As shown, taking a first opening Q1 as an example, at least a portion of the connecting conductor 32 is housed within the first opening Q1. Specifically, the connecting conductor 32 includes a conductor portion 322 located within the first opening Q1, specifically disposed on the side of the first opening Q1 away from the top cover 312 along the third direction Z. That is, a portion of the conductor portion 322 is located on the side of the first opening Q1 facing the substrate 2. The conductor portion 322 can abut against the bottom plate 3111 of the bottom shell 311 along the third direction Z. After the cable wire extends into the first opening Q1, the wire can be squeezed along the third direction Z towards the bottom plate 3111 of the bottom shell 311 by squeezing the wire, so that the optical cable wire can abut against the conductor portion 322 located at the bottom of the first opening Q1, and an electrical connection is achieved between the wire and the connecting conductor 32.

[0093] by Figure 6Taking the partial structure of the connecting end 3 shown as a reference, along the sliding direction of the sliding rod 333 relative to the second opening Q2, i.e., the first direction X, the second opening Q2 includes a first limiting surface w1 and a second limiting surface w2. The distance between the first limiting surface w1 and the opening of the second opening Q2 is greater than the distance between the second limiting surface w2 and the opening of the second opening Q2, i.e., the first limiting surface w1 is closer to the interior of the second opening Q2. Along the sliding direction perpendicular to the sliding rod 333 and the second opening Q2, i.e., the first direction X, the circumferential surface of the sliding rod 333 includes a first protrusion 3331, which is located between the first limiting surface w1 and the second limiting surface w2. When the sliding rod 333 reciprocates relative to the housing 31 along the first direction X, the first protrusion 3331 moves between the first limiting surface w1 and the second limiting surface w2. When the second terminal 332 is connected to the first terminal 331, the first protrusion 3331 abuts against the first limiting surface w1 along the first direction X. The first limiting surface w1 can prevent the sliding rod 333 from continuing to move towards the first terminal 331 along the first direction X by blocking the first protrusion 3331, and prevent the sliding rod 333 from hitting the first terminal 331 and causing damage. After the second terminal 332 is separated from the first terminal 331, the first protrusion 3331 abuts against the second limiting surface w2 along the first direction X. The second limiting surface w2 can prevent the sliding rod 333 from continuing to move away from the first terminal 331 along the first direction X by blocking the first protrusion 3331, and prevent the sliding rod 333 from dislodging from the second opening Q2.

[0094] As a specific structural example, along the direction in which the sliding rod 333 slides relative to the second opening Q2, i.e., the first direction X, the distance between the first protrusion 3331 at the end of the sliding rod 333 that fixes the second terminal 332 is greater than the distance between the first limiting surface w1 and the second limiting surface w2. The distance between the end of the sliding rod 333 away from the first terminal 331 and the first protrusion 3331 is greater than the distance between the first limiting surface w1 and the second limiting surface w2. By limiting the position of the first protrusion 3331 of the sliding rod 333 along the first direction X, based on the functional implementation of the trigger switch 33, it can be ensured that the sliding rod 333 can maintain a stable sliding connection with the second opening Q2, protecting all components of the trigger switch 33.

[0095] like Figure 6As shown, in one embodiment, the locking mechanism 34 includes a cam as the movable component 341 and a threaded component 342 as the driving component. The cam is rotatably mounted in the first opening Q1 of the housing 31 about a rotation axis R. A gap exists between the conductor portion 322 and the cam for the cable wire to extend into. The rotation axis R is perpendicular to the first direction X and, exemplarily, parallel to the second direction Y. A gap exists between the connecting conductor 32 and the circumferential side of the cam along the third direction Z for the cable wire to extend into. The threaded component 342, acting as the driving component, is threadedly connected to the housing 31 along the first direction X. Along the first direction X, one end of the threaded component protrudes from the window K, and the other end of the threaded component abuts against the circumferential side of the cam. Rotating the threaded component allows it to move along the first direction X, thereby driving the cam to rotate about the rotation axis R. When the cam rotates about the rotation axis R, the gap between the cam and the conductor portion 322 changes along the third direction Z, thereby squeezing the cable wire extending into the first opening Q1 through the rotation of the cam, so that the wire can tightly abut against the connecting conductor 32, achieving locking. The threaded drive component 342 has a certain self-locking capability during movement. When the threaded component drives the cam to rotate, the movement of the threaded component can maintain the state after the operation. The threaded component is a screw or bolt. The end face of the threaded component facing the window K includes a cross-shaped groove or a slotted groove for operator operation.

[0096] Figure 7 This example illustrates the structure of the locking mechanism 34 locking the cable to the connecting conductor 32. Figure 7 As shown, a cam-shaped movable member 341 is mounted in the first opening Q1 of the housing 31 via a rotating shaft R, and the cam can rotate around the rotating shaft R. A threaded drive member is mounted in the housing 31, with one end of the threaded member facing the window K in the first direction X, and the other end abutting against the circumferential side of the cam. In the third direction Z, the distance between the threaded member and the conductor portion 322 is greater than the distance between the rotating shaft R and the conductor portion 322. There is a gap between the conductor portion 322 connecting the conductor 32 and the cam for the cable wire to extend into. The circumferential surface of the cam includes a protrusion t facing the cable, and the radius of the cam at the protrusion t is greater than the distance e between the cable and the rotating shaft R of the cam. Specifically, in the direction perpendicular to the rotating shaft R, the position of the cam for contacting the threaded member and the protrusion t are located on opposite sides of the rotating shaft R. In particular, in the third direction Z, the position of the cam for contacting the threaded member is above the rotating shaft R, and the protrusion t is below the rotating shaft R.

[0097] Combination Figure 7 As shown, when the cable is inserted, the cable extends into the first opening Q1, and the cable conductor 021 enters between the cam and the conductor portion 322. The cable conductor 021 is used to transmit current and can be made of copper. When the threaded component moves towards the cam side along the first direction X, the threaded component drives the cam to rotate, and the cam... Figure 7As shown, the cam rotates clockwise around the axis R, and the protrusion t of the cam moves clockwise toward the conductor 322. The protrusion t acts on the wire 021 of the cable, and applies a force along the third direction Z to the wire 021 against the conductor 322, thereby pressing the wire 021 tightly against the surface of the conductor 322 facing the cam, achieving a reliable connection between the two. Due to the self-locking function of the threaded component, the cam can maintain the state of pressing the wire 021 tightly against the conductor 322, ensuring a reliable connection.

[0098] In one embodiment, to ensure good contact between the drive element 342 and the circumferential surface of the cam to guarantee force transmission, such as... Figure 7 As shown, the circumferential surface of the cam includes a recess c, which is used by the drive member 342 to abut against. Along the first direction X, the recess c faces the window K. Along the direction perpendicular to the rotation axis R, the recess c and the protrusion t are arranged on both sides of the rotation axis R, which can ensure that the force exerted by the drive member 342 on the cam can drive the cam to rotate.

[0099] In one embodiment, to enable the protrusion t of the cam to better apply force to the wire 021, multiple teeth u are formed on the surface of the protrusion t facing away from the rotation axis R, that is, multiple teeth u are formed at the end of the protrusion t facing the wire 021. When the protrusion t presses against the wire 021, the teeth u increase the friction between the protrusion t and the wire 021, enhancing the clamping and locking effect.

[0100] In the connection terminal 3 provided in the above embodiment, the operator can operate the drive component 342 through window K to drive the movable component 341 to reliably connect the cable wire to the connecting conductor 32. During this process, the sliding lever 333 of the trigger switch 33 ensures the connection between the first terminal 331 and the second terminal 332. When the trigger switch 33 is in the ON state, the connection between the first terminal 331 and the second terminal 332 enables the control circuit to conduct. At this time, it is necessary to avoid the operator from operating the drive component 342. Therefore, as... Figure 8a As shown, in the power conversion module provided in this embodiment, the connection end 3 further includes a movable baffle 35. This movable baffle 35 prevents operators from manipulating the drive unit 342 when the trigger switch 33 is engaged. The state of the movable baffle 35 is related to the state of the sliding rod 333 of the trigger switch 33. During operation of the sliding rod 333 of the trigger switch 33, the safety prevention effect of the movable baffle 35 can be achieved through structural linkage.

[0101] As shown in 8a, the connecting end 3 provided in this embodiment of the application also includes a movable baffle 35. One end of the movable baffle 35 is rotatably connected to the sliding rod 333, and the other end of the movable baffle 35 extends between the locking mechanism 34 and the window K. When the sliding rod 333 slides relative to the housing 31 along the first direction X, the sliding rod 333 can drive one end of the movable baffle 35 to move. Since the other end of the movable baffle 35 extends between the locking mechanism 34 and the window K, the locking mechanism 34 and the window K provide a certain positional limitation for the movable baffle 35 along the first direction X, causing the movable baffle 35 to rotate around the sliding rod 333 while moving along the first direction X with the sliding rod 333. When the first terminal 331 and the second terminal 332 of the trigger switch 33 are connected, the movable baffle 35 can be at least partially located between the driving member 342 of the locking mechanism 34 and the window K, and the movable baffle 35 can at least partially block the driving member 342, preventing personnel from passing through the window K to operate the driving member 342. Figure 8a This shows that the first terminal 331 of the trigger switch 33 is connected to the second terminal 332, and the movable baffle 35 is located between the drive member 342 and the window K along the first direction X.

[0102] As a safety alternative, when the movable baffle 35 is positioned between the drive member 342 and the window K along the first direction X and blocks the drive member 342, there is a risk that the movable baffle 35 may be violently damaged if a worker accidentally applies force to it with a tool. Therefore, if... Figure 8b As shown, the interior of the housing 31 is provided with a support surface M facing the window K. When the movable baffle 35 is located between the drive member 342 and the window K along the first direction X and blocks the drive member 342, the surface of the movable baffle 35 facing the drive member 342 abuts against the support surface M. The support surface M can provide structural support for the movable baffle 35 and reduce the risk of the movable baffle 35 being violently damaged.

[0103] For example, a partition 313 is provided inside the bottom shell 311, which blocks the locking mechanism 34 and the sliding rod 333. The end face of the partition 313 facing the opening of the first opening Q1 along the first direction X does not contact the inner wall of the bottom shell 311, and this end face of the partition 313 is used to form a bearing surface M. Along the first direction X, if the distance between the partition 313 and the window K is less than or equal to the distance between the driving member 342 and the window K, then the bearing surface M protrudes from the surface of the driving member 342 facing the window K or remains flush with the surface of the driving member 342 facing the window K. Along the first direction X, there is a gap between the bearing surface M and the inner wall of the shell 31, which provides space for the movement of the movable baffle 35. The connecting end 3 provided in this embodiment includes two first openings Q1, and the shell 31 is correspondingly provided with two partitions 313, each partition 313 blocking between a first opening Q1 and a second opening Q2, and the space between the two partitions 313 is the second opening Q2. Correspondingly, the connecting end 3 is provided with two sets of locking mechanisms 34, two windows K, and two movable baffles 35. The end faces of the openings of the two partitions 313 along the first direction X and the first opening Q1 respectively form a bearing surface M, and each bearing surface M is used to provide support for a movable baffle 35. In some embodiments, the two partitions 313 can have an integral structure with the bottom shell 311.

[0104] As a specific structural example, the end face of the opening of the first opening Q1 of the partition 313 along the first direction X is an L-shaped surface. The bearing surface M formed by this end face extends along the second direction Y between the driving member 342 and the bottom of the bottom shell 311. When the movable baffle 35 slides along the second direction Y to block the driving member 342, it continues to provide support for the movable baffle 35.

[0105] like Figure 9 The structure of the connecting end 3 shown includes a limiting groove v on the inner wall of the second opening Q2, and a second protrusion p on the circumferential surface of the sliding rod 333. When the second terminal 332 of the trigger switch 33 is connected to the first terminal 331, the second protrusion p slides into the limiting groove v. The limiting groove v can prevent the sliding rod 333 from moving along the first direction X and affecting the reliable connection between the first terminal 331 and the second terminal 332 by limiting the position of the second protrusion p.

[0106] In one embodiment, the second protrusion p engages with the inner wall of the second opening Q2 in a slight contact manner. When the sliding rod 333 slides relative to the second opening Q2 along the first direction X, the second protrusion p and the second opening Q2 make frictional contact, but the friction between the second protrusion p and the second opening Q2 does not affect the sliding of the sliding rod 333 relative to the second opening Q2. The second protrusion p slides into the limiting groove v, perpendicular to the first direction X, and does not contact the inner wall of the second opening Q2. During the process of the operator operating the sliding rod 333 to connect the first terminal 331 and the second terminal 332, the frictional contact between the second protrusion p and the second opening Q2 can provide a certain resistance to the movement of the sliding rod 333 operated by the operator. As the sliding rod 333 moves closer to the first terminal 331 along the first direction X, when the first terminal 331 is connected to the second terminal 332, the second protrusion p slides into the limiting groove v. The operator can feel that the friction between the second protrusion p and the inner wall of the second opening Q2 disappears, and can then know that the first terminal 331 and the second terminal 332 have been connected.

[0107] It should be understood that the operator needs to operate the sliding rod 333 to move along the first direction X to connect the first terminal 331 and the second terminal 332 or to separate the first terminal 331 and the second terminal 332. The second protrusion p slides out of the limiting groove v when the first terminal 331 and the second terminal 332 need to be separated. In order to facilitate the second protrusion p sliding out of the limiting groove v, the side wall of the limiting groove v opposite to the first terminal 331 along the first direction X can be a slope.

[0108] Figure 10a and Figure 10b as well as Figure 11a and Figure 11b This diagram illustrates the operational status of the connection terminal 3 of the power conversion module provided in this embodiment. Figure 10a and Figure 10b This is the structure when the first terminal 331 of the trigger switch 33 is disconnected from the second terminal 332. Figure 11a and Figure 11b When the first terminal 331 of the trigger switch 33 is connected to the second terminal 332. Figure 10a and Figure 11a The view shown is along the third direction Z, observing the connecting end 3 from the top cover 312 toward the bottom shell 311. Figure 10b and Figure 11b The view shown is taken from the side of the connecting end 3 away from the box body 1 along the first direction X.

[0109] like Figure 10aAs shown, the trigger switch 33 is in the open circuit state, and the first terminal 331 and the second terminal 332 are separated. Along the first direction X, the first protrusion 3331 of the sliding rod 333 abuts against the second limiting surface w2. The second limiting surface w2 prevents the sliding rod 333 from sliding out of the second opening Q2 by limiting the first protrusion 3331. At this time, a cable can be inserted into the first opening Q1, so that the cable conductors are aligned with the conductor portion 322 of the connecting conductor 32 along the third direction Z. Figure 10b As shown, the drive unit 342 exposes the window K along the first direction X. The operator can operate the drive unit 342 through the window K, so that the drive unit 342 drives the movable part 341 to move and press and lock the conductor part 322 of the wire box, thereby realizing the electrical connection between the wire and the connecting conductor 32, and thus physically connecting the cable to the power conversion circuit of the substrate 2.

[0110] Combination Figure 10a and Figure 10b As shown, along the first direction X, as Figure 10a The arrow indicates that the sliding rod 333 is pushed in the direction of the sliding arrow, causing it to move towards the first terminal 331. The first protrusion 3331 moves away from the second limiting surface w2 and towards the first limiting surface w1. This movement of the sliding rod 333 causes one end of the movable baffle 35 connected to the sliding rod 333 to move towards the first terminal 331. Simultaneously, the other end of the movable baffle 35 connected to the sliding rod 333 rotates relative to the sliding rod 333, causing the end of the movable baffle 35 away from the sliding rod 333 to move in the direction of the arrow towards the side furthest from the sliding rod 333. The movable baffle 35 gradually extends between the driving member 342 and the window K.

[0111] Figure 11a This illustrates the state where the sliding rod 333 slides relative to the second opening Q2 until the first terminal 331 and the second terminal 332 are connected. Along the first direction X, the first protrusion 3331 of the sliding rod 333 abuts against the first limiting surface w1. The first limiting surface w1, by limiting the first protrusion 3331, prevents the sliding rod 333 from extending into the bottom of the second opening Q2 and impacting the first terminal 331. Combined with... Figure 11b As shown, the movable baffle 35 is arranged between the drive unit 342 and the window K. The movable baffle 35 can at least partially cover the surface of the drive unit 342 facing the window K to block the operating end face of the drive unit 342, preventing the operator from operating the drive unit 342 when the power conversion circuit is on, and avoiding safety problems caused therefrom.

[0112] In the above embodiments, the power conversion module provided in this application can be connected to a battery or photovoltaic system via a cable to achieve unidirectional or bidirectional DC-DC conversion. Of course, this power conversion module can also be applied to other applications where devices are electrically connected via cables, which will not be elaborated upon here.

[0113] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power conversion module, characterized in that, The power conversion module includes a housing, a base plate, and a connection terminal; The substrate is housed within the housing, and the substrate is provided with a power conversion circuit and a control circuit. The control circuit is used to control the operating state of the power conversion circuit. The connection end includes a housing, a connecting conductor, and a trigger switch. The housing is fixed to the box and a portion of the housing protrudes from the box. The housing includes a first opening for inserting a cable, and the opening of the first opening is located on the end face of the housing opposite to the box. One end of the connecting conductor extends into the first opening to connect the cable, and the other end of the connecting conductor protrudes from the housing to connect the substrate and the power conversion circuit. When the cable is connected to the connecting conductor, the trigger switch is connected to the substrate to control the control circuit to conduct.

2. The power conversion module as described in claim 1, characterized in that, The trigger switch includes a first terminal, a second terminal, and a sliding rod; The first terminal is fixed to the substrate and electrically connected to the control circuit. The sliding rod is slidably connected to the housing, and the second terminal is fixed to the sliding rod and electrically connected to the control circuit. When the sliding rod slides relative to the housing, the second terminal is used to connect or disconnect from the first terminal.

3. The power conversion module as described in claim 2, characterized in that, The connection end also includes a locking mechanism and a movable baffle, the locking mechanism being used to lock the connection between the cable and the connecting conductor; The locking mechanism is installed inside the housing, and the housing includes a window exposing the locking mechanism; One end of the movable baffle is rotatably connected to the sliding rod, and the other end of the movable baffle is used to extend between the locking mechanism and the window; When the second terminal is connected to the first terminal, the movable baffle at least partially obstructs the space between the locking mechanism and the window.

4. The power conversion module as described in claim 3, characterized in that, The housing includes a partition, which is positioned between the sliding rod and the locking mechanism; Along the sliding direction of the sliding rod relative to the housing, the end face of the partition facing the window forms a bearing surface, and a portion of the bearing surface is located between the locking mechanism and the inner wall of the housing; When the movable baffle is at least partially obscured between the locking mechanism and the window, the end of the movable baffle away from the sliding rod abuts against the bearing surface.

5. The power conversion module as described in claim 3, characterized in that, The locking mechanism includes a drive component and a cam; The cam is rotatably mounted inside the first opening, and the rotation axis of the cam is perpendicular to the direction in which the cable is inserted into the first opening. There is a gap between the circumferential surface of the cam and the connecting conductor to allow the wire of the cable to extend into it; the circumferential surface of the cam includes a protruding cable portion. The drive member is movably connected to the housing in a direction perpendicular to the rotation axis. The drive member is used to abut against the circumferential surface of the cam, and the end of the drive member facing away from the cam faces the window. When the drive member moves relative to the housing toward the cam, the drive member is used to push the cam to rotate so that the protrusion moves toward the connecting conductor to press against the cable.

6. The power conversion module as described in claim 5, characterized in that, The circumferential surface of the cam includes a recessed portion, which is used for the drive member to abut against. Along a direction perpendicular to the rotation axis, the recess and the protrusion are arranged on both sides of the rotation axis.

7. The power conversion module as described in claim 5, characterized in that, The surface of the protrusion facing away from the rotation axis includes multiple teeth.

8. The power conversion module as described in claim 2, characterized in that, The housing includes a second opening, the opening of which is located on the end face of the housing opposite to the box body; The sliding rod is slidably connected to the second opening, the first terminal is fixed to the wall surface of the second opening away from the opening, and the second terminal is fixed to one end of the sliding rod facing the wall surface of the second opening.

9. The power conversion module as described in claim 8, characterized in that, Along the sliding direction of the sliding rod relative to the second opening, the end of the second terminal facing the first terminal includes two mutually abutting elastic clips, and the first terminal is used to insert between the two elastic clips.

10. The power conversion module as described in claim 8, characterized in that, Along the direction in which the sliding rod slides relative to the second opening, the inner wall of the second opening includes a first limiting surface and a second limiting surface opposite to each other, and the distance between the first limiting surface and the opening of the second opening is greater than the distance between the second limiting surface and the opening of the second opening. The circumferential surface of the sliding rod includes a first protrusion. The first protrusion is located between the first limiting surface and the second limiting surface along the direction in which the sliding rod slides relative to the second opening. When the second terminal is connected to the first terminal, the first protrusion abuts against the first limiting surface.

11. The power conversion module as described in claim 10, characterized in that, Along the direction in which the sliding rod slides relative to the second opening, the distance between the end of the sliding rod that fixes the second terminal and the first protrusion is greater than the distance between the first limiting surface and the second limiting surface, and the distance between the end of the sliding rod away from the second terminal and the first protrusion is greater than the distance between the first limiting surface and the second limiting surface.

12. The power conversion module as described in claim 8, characterized in that, The circumferential surface of the sliding rod includes a second protrusion, which is frictionally connected to the second opening. The inner wall of the second opening includes a limiting groove for accommodating the second protrusion. When the second terminal is connected to the first terminal, the second protrusion slides into the limiting groove.

13. The power conversion module according to any one of claims 1-12, characterized in that, The housing includes a bottom shell and a top cover. The connecting conductor and the trigger switch are mounted on the bottom shell, and a portion of the trigger switch protrudes from the end face of the bottom shell away from the housing. Along a direction perpendicular to the substrate, the projection of the top cover onto the bottom shell covers the projection of the trigger switch onto the bottom shell.

14. A power supply device, characterized in that, The power supply equipment includes a DC bus, multiple AC-to-DC modules, and a power conversion module as described in any one of claims 1-13; The output terminal of each AC-to-DC module is connected to the power conversion module via the DC bus.

15. The power supply equipment according to claim 14, characterized in that, The power supply equipment also includes a battery or a photovoltaic system, and the DC bus is used to connect to the output terminal of the battery or the DC output terminal of the photovoltaic system.

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