Inverter

Abstract

The utility model relates to the technical field of power distribution equipment, and provides an inverter which comprises an upper shell, a lower shell, a circuit assembly, a power connection assembly and a heat dissipation assembly. The upper shell and the lower shell are detachably connected, the upper shell and the lower shell are connected to form a complete shell structure, and mounting openings are formed in the two ends of the shell structure; the power connection assembly and the heat dissipation assembly are connected to the installation opening to form a closed shell structure. The circuit assembly is installed in the shell structure and located on the lower shell. The device has the effect of being convenient to disassemble, assemble, maintain and repair.

Description

Technical Field

[0001] The present application relates to the technical field of power distribution equipment, and in particular to an inverter. Background Art

[0002] An inverter is a converter that converts DC power (battery, storage battery) into constant frequency and voltage or frequency and voltage regulated AC power. It consists of an inverter bridge, control logic and filter circuit.

[0003] The housing of the inverter is usually integrally cast or welded to form a closed space to protect the internal circuit. This integral housing structure is not easy to disassemble and repair when the inverter is damaged or needs to be upgraded. Summary of the invention

[0004] In order to improve the above problems, the present application provides an inverter.

[0005] The inverter provided in this application adopts the following technical solution:

[0006] An inverter comprises an upper shell, a lower shell, a circuit assembly, a power connection assembly and a heat dissipation assembly; the upper shell and the lower shell are detachably connected to each other, and a shell structure is formed after the upper shell and the lower shell are connected, and installation openings are opened at both ends of the shell structure; the power connection assembly and the heat dissipation assembly are respectively connected to the installation openings to form a closed shell structure; the circuit assembly is installed in the shell structure and is located on the lower shell.

[0007] By adopting the above technical solution, when the inverter needs to be repaired or upgraded, it is only necessary to disassemble the connection part between the upper shell and the lower shell to conveniently access the internal circuit components. At the same time, since the power connection component and the heat dissipation component are respectively connected to the installation opening, these components can be replaced or upgraded according to actual needs, thereby improving the applicability and maintainability of the inverter.

[0008] Optionally, both the upper shell and the lower shell are semi-arc shell structures and are provided with edges and corners.

[0009] By adopting the above technical solution, the semi-arc shell structure can make the overall inverter more beautiful. At the same time, when subjected to force, compared with the existing rectangular structure, it can have a more stable structure and more dispersed force, and has the effect of anti-collision and pressure resistance. At the same time, the edges and corners can be reinforced to make the thickness at the corners thicker and able to withstand greater force.

[0010] Optionally, a limiting groove is provided at the bottom of the upper shell; a limiting protrusion is provided at the top of the lower shell, and the lower shell is slidably connected along the limiting groove by utilizing the limiting protrusion.

[0011] By adopting the above technical solution, the lower shell is inserted into one end of the limiting groove using the limiting protrusion, and then continuously inserted along the limiting groove until the lower shell and the upper shell are completely plugged in, so that the two can be stably installed and convenient disassembly and assembly can be achieved.

[0012] Optionally, a plurality of connecting parts are provided in the lower shell; and the circuit assembly is detachably connected to the connecting parts.

[0013] By adopting the above technical solution, the circuit components are connected through the connecting part, which can reduce the contact area between the circuit components and the lower shell, so that when the lower shell or the upper shell is impacted, it can provide a buffering effect to prevent the impact force from being transmitted to the circuit component and affecting the normal operation of the circuit component. At the same time, it can also avoid leakage and improve a certain safety.

[0014] Optionally, a plurality of threaded portions are further provided in the upper shell and the lower shell; screw-fastening portions are provided on both the power connection component and the heat dissipation component; the power connection component and the heat dissipation component are respectively covered on the mounting opening, and the screw-fastening portions penetrate through the power connection component or the heat dissipation component and are screwed to the threaded portions.

[0015] By adopting the above technical solution, a plurality of screw-tightening parts are screwed together with a plurality of threaded parts, so that the power connection component and the heat dissipation component can close the installation opening more stably.

[0016] Optionally, the power connection component and the heat dissipation component are both further provided with a baffle and a fixing frame, and the baffle and the fixing frame are located between the power connection component or the heat dissipation component and the installation port.

[0017] By adopting the above technical solution, the baffle and the fixing frame provide internal support and external support for the shell structure respectively, so that the connection between the upper shell and the lower shell is more stable.

[0018] Optionally, the heat dissipation component is movably connected to the mounting opening of the lower shell; a first buckle connection portion is movably connected to the heat dissipation component; the upper shell is also provided with a second buckle connection portion; the first buckle connection portion is buckled with the second buckle connection portion.

[0019] By adopting the above technical solution, the heat dissipation component can be rotated along the lower shell body by means of a movable connection to open the installation port, which is convenient for the user to inspect the circuit components in the installation port. The heat dissipation component is fixed to the installation port by engaging the first snap connection portion with the second snap connection portion, making it more convenient to open or close the installation port for inspection.

[0020] Optionally, both the upper shell and the lower shell are provided with an insertion groove, the heat dissipation assembly is provided with an insertion protrusion, and the heat dissipation assembly is plugged into the insertion groove through the insertion protrusion; the upper shell or the lower shell also has a locking part, and the locking part is connected to the upper shell or the lower shell by screw connection.

[0021] By adopting the above technical solution, when the heat dissipation component needs to be taken out for inspection, the heat dissipation component can be disengaged from the installation port by pulling it out along the insertion slot. At the same time, the installation port blocked by the heat dissipation component is lost, which is also convenient for inspecting the circuit components. The rotational locking effect of the locking part can be used to lock the disengagement path of the heat dissipation component to prevent the heat dissipation component from being arbitrarily disengaged from the insertion slot.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the inverter needs to be repaired or upgraded, you only need to remove the connection between the upper and lower shells to easily access the internal circuit components. At the same time, since the power connection components and heat dissipation components are respectively connected to the installation port, these components can be replaced or upgraded according to actual needs, which improves the applicability and maintainability of the inverter;

[0024] 2. Insert the lower shell into one end of the limiting groove using the limiting protrusion, and then continue to insert along the limiting groove until the lower shell and the upper shell are plugged in, so that the two can be stably installed and conveniently disassembled and assembled;

[0025] 3. Connecting the circuit components through the connecting part can reduce the contact area between the circuit components and the lower shell, so that when the lower shell or the upper shell is hit, it can provide a buffering effect to prevent the impact force from being transmitted to the circuit components and affecting the normal operation of the circuit components. At the same time, it can also avoid leakage and improve safety to a certain extent;

[0026] 4. The baffle and the fixing frame provide internal support and external support for the shell structure respectively, so that the connection between the upper shell and the lower shell is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of an exploded structure of an inverter in one embodiment of the present application;

[0028] Figure 2 This application Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0029] Figure 3 is a schematic diagram of the three-dimensional structure of the installation port in some embodiments of the present application;

[0030] Figure 4 is a schematic diagram of the three-dimensional structure of an inverter in some embodiments of the present application;

[0031] Figure 5 is a first side view structural schematic diagram of an inverter in another embodiment of the present application;

[0032] Figure 6 is a second side view structural schematic diagram of an inverter in another embodiment of the present application;

[0033] The marks in the accompanying drawings are: 1. upper shell, 2. lower shell, 21. limiting protrusion, 22. connecting part, 3. installation port, 4. power connection component, 5. heat dissipation component, 51. first buckling part, 52. insertion protrusion, 6. circuit component, 7. threaded part, 8. screw-tightening part, 9. baffle, 10. fixing frame, 11. limiting groove, 12. second buckling part, 13. insertion groove, 14. locking part. DETAILED DESCRIPTION

[0034] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0035] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0036] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0037] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0039] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0040] An embodiment of the present application discloses an inverter.

[0041] An inverter, referring to Figure 1 As shown, it includes an upper shell 1, a lower shell 2, a circuit component 6, an electrical connection component 4 and a heat dissipation component 5; the upper shell 1 and the lower shell 2 are detachably connected, and a complete shell structure is formed after the upper shell 1 and the lower shell 2 are connected. Installation openings 3 are provided at both ends of the shell structure. The detachable connection can be a screw connection or a snap connection. Open openings are provided at both ends of the upper shell 1 and the lower shell 2. When the upper shell 1 and the lower shell 2 are connected to each other, a complete shell structure is formed, and the two open openings are closed to form the installation opening 3 for connecting external wires and other electrical components.

[0042] The power connection assembly 4 and the heat dissipation assembly 5 are respectively connected to the installation opening 3, and the installation opening 3 is closed to form a closed shell structure. The shell structure contains an installation cavity, which serves as an installation space to provide installation of components.

[0043] The circuit assembly 6 is installed in the shell structure and is located on the lower shell 2. The circuit assembly 6 includes main power components such as circuit boards, capacitors, resistors, coils, etc. that constitute the inverter function. It is located in the shell structure formed by the shell and the lower shell 2. The installation opening 3 is closed by using the power connection assembly 4 and the heat dissipation assembly 5 to protect the circuit assembly 6 therein and prevent the circuit assembly 6 from being damaged by external forces.

[0044] The power connection assembly 4 includes power components such as a power socket and a power line, and the power line extends out to connect with the circuit assembly 6 to provide power and data connection.

[0045] The heat dissipation assembly 5 includes power components such as a heat dissipation motor and heat dissipation fan blades, which are used to dissipate the heat generated during the operation of the circuit assembly 6 in the shell structure, thereby playing a role in cooling and heat dissipation.

[0046] Specifically, when the inverter needs to be repaired or upgraded, it is only necessary to disassemble the connection portion 22 of the upper shell 1 and the lower shell 2 to easily access the internal circuit components 6. At the same time, since the power connection component 4 and the heat dissipation component 5 are respectively connected to the installation port 3, these components can be replaced or upgraded according to actual needs, thereby improving the applicability and maintainability of the inverter.

[0047] Furthermore, both the shell and the lower shell 2 are semi-arc shell structures and are provided with edges and corners. The semi-arc shell structure can make the overall inverter more beautiful. At the same time, when subjected to force, compared with the existing rectangular structure, it can serve as a more stable structure, with more dispersed force, and have an anti-collision and pressure-resistant effect.

[0048] At the same time, the corners can be reinforced to make the corners of the shell structure thicker and able to withstand greater force. The corners of the upper shell 1 and the lower shell 2 are at different positions. During use, it is also easier to distinguish the upper shell 1 and the lower shell 2, especially in a dark environment.

[0049] Further, refer to Figure 2 As shown, the detachable connection method of the upper shell 1 and the lower shell 2 can be plug-in, specifically, a limiting groove 11 is set at the bottom of the upper shell 1; a limiting protrusion 21 is set at the top of the lower shell 2, and the lower shell 2 is slidably connected along the limiting groove 11 using the limiting protrusion 21.

[0050] The lower shell 2 is inserted into one end of the limiting groove 11 using the limiting protrusion 21, and then continuously inserted along the limiting groove 11 until the lower shell 2 and the upper shell 1 are plugged in, so that the two can be stably installed. Then, the installation opening 3 is closed using the heat dissipation component 5 and the power connection component 4, and the separation path between the upper shell 1 and the lower shell 2 is closed to complete the installation. When disassembly is required, the heat dissipation component 5 and the power connection component 4 are taken out, and the lower shell 2 is separated from the upper shell 1 along the limiting groove 11 to achieve the purpose of convenient disassembly and assembly.

[0051] In some embodiments, reference Figure 3 As shown, a connecting portion 22 is provided in the lower shell 2, and the circuit component 6 is detachably connected to the connecting portion 22. The connecting portion 22 can adopt a connecting column, and a threaded hole is provided on the top of the connecting column. The circuit component 6 is provided with a socket. When the socket on the circuit component 6 is aligned with the threaded hole, the circuit component 6 is fixed to the connecting portion 22 by bolt locking.

[0052] By connecting the circuit assembly 6 via the connecting portion 22, the contact area between the circuit assembly 6 and the lower shell 2 can be reduced, so that when the lower shell 2 or the upper shell 1 is impacted, a buffering effect can be provided to prevent the impact force from being transmitted to the circuit assembly 6 and affecting the normal operation of the circuit assembly 6. At the same time, leakage can also be avoided, thereby improving safety to a certain extent.

[0053] In some embodiments, reference Figure 2 As shown, a plurality of threaded parts 7 are further provided in the upper shell 1 and the lower shell 2, and the threaded parts 7 are connected to the upper shell 1 and the lower shell 2 in a fixed manner.

[0054] A screw-tightening portion 8 is provided on both the power connection component 4 and the heat dissipation component 5. The threaded portion 7 can be a threaded barrel with an internal thread, and the threaded portion 7 is dispersedly arranged at the mounting openings 3 of the upper shell 1 and the lower shell 2. The length can also directly extend from one mounting opening 3 to another mounting opening 3, so that the power connection component 4 and the heat dissipation component 5 can be installed by a single threaded portion 7.

[0055] The screw-fastening portion 8 may be a bolt or a screw, and is used to fix the power connection component 4 and the heat dissipation component 5 to the threaded portion 7 at the installation opening 3 .

[0056] The power connection component 4 and the heat dissipation component 5 are respectively covered on the installation opening 3, and the power connection component 4 or the heat dissipation component 5 is penetrated by the screw-tightening portion 8 and screwed with the threaded portion 7. Through holes corresponding to the positions of the threaded portions 7 can be opened on the power connection component 4 and the heat dissipation component 5, so that when the power connection component 4 and the heat dissipation component 5 cover the installation opening 3, the through holes are connected with the threaded portions 7. At this time, the screw-tightening portion 8 is inserted into the through holes and screwed on the threaded portion 7, so that the power connection component 4 and the heat dissipation component 5 are installed.

[0057] When disassembly is required, the screw-fastening portion 8 is unscrewed from the threaded portion 7, and the power connection assembly 4 and the heat dissipation assembly 5 lose the fixing effect of the screw-fastening portion 8, so that they can be separated.

[0058] In some embodiments, reference Figure 4 As shown, both the power connection component 4 and the heat dissipation component 5 are further provided with a baffle 9 and a fixing frame 10 (the view in the figure takes the heat dissipation component 5 as an example), and the baffle 9 and the fixing frame 10 are located between the power connection component 4 or the heat dissipation component 5 and the mounting opening 3, the size of the baffle 9 is smaller than the size of the mounting opening 3, and the size of the fixing frame 10 is larger than the size of the mounting opening 3, so that the baffle 9 can be embedded in the mounting opening 3 to provide internal support, and the fixing frame 10 can frame the mounting opening 3 from the outside to provide external support, thereby making the connection between the upper shell 1 and the lower shell 2 more stable.

[0059] The threaded portion 7 and the screw tightening continuously fix the fixing frame 10 and the baffle 9 to the upper shell 1 and the lower shell 2, thereby improving the stability.

[0060] In another embodiment, reference Figure 5 As shown, the heat dissipation component 5 is movably connected to the installation opening 3 of the lower shell 2. The movable connection method of the heat dissipation component 5 and the lower shell 2 can be hinged. A hinge frame is set. After the heat dissipation component 5 and the lower shell 2 are connected, the heat dissipation component 5 can use the hinge frame to rotate along the lower shell 2 to open the installation opening 3, so that the user can easily inspect the circuit component 6 in the installation opening 3.

[0061] A first buckle portion 51 is movably connected to the heat dissipation component 5, and the upper shell 1 is also provided with a second buckle portion 12. The first buckle portion 51 is buckled with the second buckle portion 12. Both the first buckle portion 51 and the second buckle portion 12 can adopt an arc-shaped buckle frame, but the first buckle portion 51 and the heat dissipation component 5 can be hinged, so that when the heat dissipation component 5 closes the mounting opening 3, the first buckle portion 51 can be rotated to the second buckle portion 12 for buckling, thereby fixing the heat dissipation component 5 on the mounting opening 3. When the mounting opening 3 needs to be opened, the first buckle portion 51 and the second buckle portion 12 can be separated, making it more convenient to open the mounting opening 3 or close the mounting opening 3 for maintenance and other operations.

[0062] A plurality of first buckling portions 51 and second buckling portions 12 may be provided to improve the stability of the installation of the heat dissipation component 5 .

[0063] The first buckling portion 51 further includes a torsion spring, which is located at the movable connection point between the first buckling portion 51 and the heat dissipation component 5. The torsion spring can make the buckling effect between the first buckling portion 51 and the second buckling portion 12 more stable.

[0064] In yet another embodiment, referring to Figure 6 As shown, in order to facilitate the inspection of the heat dissipation component 5 and the circuit component 6 in the shell structure without disassembling the upper shell 1 or the lower shell 2, an insertion groove 13 is opened in the upper shell 1 and the lower shell 2, and the heat dissipation component 5 is provided with an insertion protrusion 52. The heat dissipation component 5 is plugged into the insertion groove 13 through the insertion protrusion 52. When the heat dissipation component 5 needs to be taken out for inspection, the heat dissipation component 5 can be pulled out along the insertion groove 13 to be detached from the installation port 3. At the same time, the installation port 3 blocked by the heat dissipation component 5 is lost, which also facilitates the inspection of the circuit component 6.

[0065] In order to prevent the heat dissipation component 5 from arbitrarily detaching from the insertion slot 13 during use, a locking portion 14 is provided on the upper shell 1 or the lower shell 2, and the locking portion 14 is connected to the upper shell 1 or the lower shell 2 by threaded connection. The locking portion 14 may include a locking screw and a locking cover. A screw hole is opened in the upper shell 1 or the lower shell 2 near the mounting port 3, and the locking screw is screwed to the screw hole so that the locking cover is rotated to the detachment path of the heat dissipation component 5, thereby blocking the heat dissipation component 5, thereby preventing the heat dissipation component 5 from arbitrarily detaching from the insertion slot 13. When the heat dissipation component 5 needs to be removed, the locking cover is rotated to the other end so that it no longer blocks the heat dissipation component 5.

[0066] Wherein, a plurality of locking portions 14 may be provided to improve the fixing effect.

[0067] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inverter, characterized in that: The invention comprises an upper shell (1), a lower shell (2), a circuit assembly (6), a power connection assembly (4) and a heat dissipation assembly (5); the upper shell (1) and the lower shell (2) are detachably connected to each other, and the upper shell (1) and the lower shell (2) are connected to form a shell structure, and mounting openings (3) are provided at both ends of the shell structure; the power connection assembly (4) and the heat dissipation assembly (5) are respectively connected to the mounting openings (3) to form a closed shell structure; the circuit assembly (6) is installed in the shell structure and is located on the lower shell (2).

2. The inverter according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are both semi-arc shell-shaped structures and are provided with edges and corners.

3. The inverter according to claim 1, characterized in that: A limiting groove (11) is provided at the bottom of the upper shell (1); a limiting protrusion (21) is provided at the top of the lower shell (2), and the lower shell (2) is slidably connected along the limiting groove (11) by means of the limiting protrusion (21).

4. The inverter according to claim 1, characterized in that: A plurality of connection parts (22) are provided in the lower housing (2); the circuit assembly (6) is detachably connected to the connection parts (22).

5. The inverter according to claim 1, characterized in that: A plurality of threaded portions (7) are further provided in the upper shell (1) and the lower shell (2); screw-fastening portions (8) are provided on the power connection assembly (4) and the heat dissipation assembly (5); the power connection assembly (4) and the heat dissipation assembly (5) are respectively covered on the installation opening (3), and the screw-fastening portions (8) penetrate the power connection assembly (4) or the heat dissipation assembly (5) and are screwed to the threaded portions (7).

6. The inverter according to claim 1, characterized in that: The power connection assembly (4) and the heat dissipation assembly (5) are both provided with a baffle (9) and a fixing frame (10), and the baffle (9) and the fixing frame (10) are located between the power connection assembly (4) or the heat dissipation assembly (5) and the installation opening (3).

7. The inverter according to claim 1, characterized in that: The heat dissipation component (5) is movably connected to the mounting opening (3) of the lower shell (2); a first buckling portion (51) is movably connected to the heat dissipation component (5); the upper shell (1) is also provided with a second buckling portion (12); the first buckling portion (51) is buckled with the second buckling portion (12).

8. The inverter according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are both provided with an insertion groove (13), the heat dissipation component (5) is provided with an insertion protrusion (52), and the heat dissipation component (5) is plugged into the insertion groove (13) via the insertion protrusion (52); the upper shell (1) or the lower shell (2) also has a locking portion (14), and the locking portion (14) is connected to the upper shell (1) or the lower shell (2) in a screw connection.

Images