Insulated power inverter

Abstract

The utility model discloses an insulated power inverter, which relates to the technical field of power inverter insulation and comprises a power inverter. The power inverter comprises a control board; the control panel is fixedly installed on the cover plate, and the edge of the cover plate is provided with a clamping groove in sealing fit with the top shell. The structure on the control board is connected with wire columns arranged at the two ends of the top shell, a cooling fan, a socket, a switch and a ground wire column through wires. The power inverter is fixedly mounted in the insulating cover; the insulating cover comprises a shell; the shell is provided with an opening; two ends of the insulating cover are respectively provided with a rectangular groove and a semi-circular groove which are convenient for exposing the wire column, the socket and the switch; when the power inverter is used, the control panel is fixedly installed on the cover plate, then the cover plate is installed at the opening end of the bottom of the top shell in a sealed mode through bolts, assembly of the power inverter is achieved, the round face on the control panel is connected with the wire columns, the cooling fan, the socket, the switch and the ground wire column which are arranged at the two ends of the top shell through wires, and connection between the power inverter and external equipment is achieved.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of power inverter insulation, in particular to an insulation type power inverter. Background Art

[0002] The inverter converts DC power (battery, storage battery) into AC power (usually 220V, 50Hz sine wave). It consists of an inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, due to the high penetration rate of cars, inverters can be used to connect batteries to drive electrical appliances and various tools when working or traveling. The car inverter output through the cigarette lighter has a power specification of 20W, 40W, 80W, 120W to 150W. For larger power inverters, the power supply must be connected to the battery through a connecting line. Connecting household appliances to the output end of the power converter allows you to use various electrical appliances in the car. The electrical appliances that can be used include: mobile phones, laptops, digital video cameras, cameras, lighting, electric shavers, CD players, game consoles, PDAs, power tools, car refrigerators, and various travel, camping, and medical emergency appliances;

[0003] When traditional inverters are used, they are directly connected to the equipment with wires. During long-term operation, the connecting wires between the inverter and the equipment are prone to loosening. This makes it impossible to effectively achieve the transmission effect, resulting in missing transmission. The missing part is transmitted through the inverter casing. If there is a voltage difference on the casing, if the staff touches it by mistake, it will cause harm to people.

[0004] After searching, Chinese patent publication number CN202221432161.4 discloses an insulated power inverter; including a protective shell and an inverter body, the inner wall of the protective shell is slidably connected to the inverter body, the inner walls on both sides of the protective shell are provided with first slide grooves, both sides of the inverter body are fixed with slide plates, the two slide plates are respectively slidably connected to the inner walls of the two first slide grooves, the top of the protective shell is hinged with a top plate, the inner walls of the bottom of both sides of the protective shell are provided with heat dissipation holes, and the bottom end of the top plate is provided with a heat dissipation component;

[0005] The structure in the above patent effectively fits the protective shell through the guard plates on both sides. In this way, during use, the temperature between the guard plates and the protective shell is high, which makes it inconvenient for the protective shell to dissipate heat during use. Although the above patent is provided with heat dissipation blades, they need to be driven by a drive motor, which requires the drive motor to be connected to the power supply, and the insulation treatment between the protective shell and the protective shell cannot be effectively guaranteed;

[0006] In view of the above situation, we provide an insulating power inverter. In this device, the assembled power inverter is installed inside the shell, and rectangular grooves and semicircular grooves are opened at both ends of the shell for easy operation. In this way, when the power inverter is working, it is only connected to the wire through the part that passes through the outside of the shell, which greatly reduces the contact area between the power inverter and the outside. A grounding wire is connected to one end of the power inverter. In this way, when the power inverter leaks electricity, it is connected to the earth through the grounding wire, which effectively avoids the voltage difference on the power inverter. When the power inverter is installed, multiple rubber insulating strips are arranged between the insulating shell and the insulating cover, which effectively avoids the situation where the insulating cover is charged. Utility Model Content

[0007] The utility model aims to provide an insulated power inverter. When the power inverter is working, it is connected to the wire only through the part passing through the outside of the shell, which greatly reduces the contact area between the power inverter and the outside. A grounding wire is connected to one end of the power inverter. When the power inverter leaks electricity, it is connected to the earth through the grounding wire, which effectively avoids the voltage difference on the power inverter. When the power inverter is installed, a plurality of rubber insulating strips are arranged between the power inverter and the insulating shell to solve the problems of the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An insulating power inverter includes a power inverter; the power inverter includes a control board; the control board is fixedly mounted on a cover plate, and a slot for sealing with a top shell is provided at an edge of the cover plate; the structure on the control board is connected to a wire post, a cooling fan, a socket, a switch and a ground wire post respectively arranged at two ends of the top shell through wires;

[0010] The power inverter is fixedly installed inside the insulating cover; the insulating cover comprises a shell; the shell is open; two ends of the insulating cover are respectively provided with rectangular grooves and semicircular grooves for exposing the wire poles, sockets and switches.

[0011] As a further technical solution of the utility model, a plurality of rubber insulating strips are arranged between the inner surface of the shell and the power inverter.

[0012] As a further technical solution of the utility model, insulating support seats are fixedly installed on the four corners of the bottom of the insulating cover away from the power inverter; the insulating support seats are made of insulating rubber.

[0013] As a further technical solution of the utility model, the grounding post at one end of the shell is connected to the grounding wire and connected to the earth.

[0014] As a further technical solution of the utility model, the cover plate is fixedly installed with the bottom edge of the top shell opening by bolts; the interior of the top shell is arranged as a cavity.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] When the utility model is used, the control panel is fixedly mounted on the cover plate, and then the cover plate is sealed and mounted on the bottom opening end of the top shell through bolts to realize the assembly of the power inverter, and the round face on the control panel is connected to the wire posts, cooling fans, sockets, switches and grounding posts arranged at both ends of the top shell through wires to realize the connection between the power inverter and external equipment;

[0017] In the utility model, when the power inverter is installed, a plurality of rubber insulating strips are arranged inside the shell, which effectively prevents the voltage on the power inverter from being transmitted to the insulating shell. The setting of the insulating cover effectively prevents the voltage of the external adjacent equipment from being transmitted to the power inverter, so that the external voltage does not cause damage to the power inverter.

[0018] In the utility model, the insulating cover and the rubber insulating strip are both made of rubber material, so that when working, it is effectively guaranteed that the internal voltage and the external voltage will not be cross-transmitted, and the grounding column on the top shell is connected with the grounding wire, which effectively guarantees the working efficiency of the power inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an assembly schematic diagram of the utility model.

[0020] Figure 2 This utility model Figure 1 Schematic diagram from another perspective.

[0021] Figure 3 It is a schematic diagram of the splitting in the utility model.

[0022] Figure 4 This utility model Figure 3 Another perspective structural diagram of .

[0023] Figure 5 This utility model Figure 3 Schematic diagram of the internal structure breakdown.

[0024] Figure 6 This utility model Figure 4 Bottom view of the bottom structure.

[0025] In the figure: 1-insulating cover, 10-housing, 11-rectangular groove, 12-semicircular groove, 2-insulating support seat, 3-power inverter, 30-top shell, 31-wire column, 32-cover plate, 33-control board, 4-grounding wire, 5-rubber insulation strip. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 In an embodiment of the utility model, an insulating power inverter includes a power inverter 3; the power inverter 3 includes a control board 33; the control board 33 is fixedly mounted on a cover plate 32, and a card slot for sealing with a top shell 30 is opened at an edge of the cover plate 32; the structure on the control board 33 is connected to the wire posts 31, the cooling fan, the socket, the switch and the grounding post arranged at both ends of the top shell 30 through wires.

[0028] Specifically, the power inverter 3 is fixedly installed inside the insulating cover 1; the insulating cover 1 includes a shell 10; the shell 10 is open; both ends of the insulating cover 1 are respectively provided with a rectangular groove 11 and a semicircular groove 12 for exposing the wire pole 31 and the socket and switch.

[0029] By adopting the above technical solution, when in use, the control board 33 is fixedly mounted on the cover plate 32, and then the cover plate 32 is sealed and mounted on the bottom opening end of the top shell 30 by bolts to realize the assembly of the power inverter 3, and the round face on the control board 33 is connected to the wire posts 31, the cooling fan, the socket, the switch and the ground wire post arranged at both ends of the top shell 30 by wires to realize the connection between the power inverter 3 and the external device;

[0030] A plurality of rubber insulating strips 5 are arranged between the inner surface of the housing 10 and the power inverter 3 .

[0031] In this embodiment, the insulating cover 1 is fixedly mounted with insulating support seats 2 at the four corners of the bottom away from the power inverter 3; the insulating support seats 2 are made of insulating rubber;

[0032] By adopting the above technical solution, when the power inverter 3 is installed, a plurality of rubber insulating strips 5 are arranged inside the housing 10, which effectively prevents the voltage on the power inverter 3 from being transmitted to the insulating shell 1. The setting of the insulating cover 1 effectively prevents the voltage of the external adjacent equipment from being transmitted to the power inverter 3, so that the external voltage causes damage to the power inverter 3.

[0033] In this embodiment, the grounding post at one end of the housing 10 is connected to the grounding wire 4 and to the earth;

[0034] The cover plate 32 is fixedly mounted to the bottom edge of the opening of the top shell 30 by bolts; the top shell 30 is provided with a cavity inside;

[0035] By adopting the above technical solution, the insulating cover 1 and the rubber insulating strip 5 are both made of rubber material, so that during operation, it is effectively ensured that the internal voltage and the external voltage will not be cross-transmitted, and the grounding column on the top shell 30 is connected to the grounding wire 4, effectively ensuring the working efficiency of the power inverter 3.

[0036] The working principle of the utility model is: when in use, the control board 33 is fixedly mounted on the cover plate 32, and the cover plate 32 is then sealed and mounted on the bottom opening end of the top shell 30 by bolts to realize the assembly of the power inverter 3, and the round face on the control board 33 is connected to the wire posts 31, the cooling fan, the socket, the switch and the grounding post arranged at both ends of the top shell 30 by wires to realize the connection between the power inverter 3 and the external device;

[0037] When the power inverter 3 is installed, a plurality of rubber insulating strips 5 are arranged inside the housing 10, which effectively prevents the voltage on the power inverter 3 from being transmitted to the insulating shell 1. The setting of the insulating cover 1 effectively prevents the voltage of the external adjacent equipment from being transmitted to the power inverter 3, so that the external voltage may cause damage to the power inverter 3.

[0038] The insulating cover 1 and the rubber insulating strip 5 are both made of rubber material, so that during operation, it is effectively ensured that the internal voltage and the external voltage will not be cross-transmitted, and the grounding column on the top shell 30 is connected to the grounding wire 4, effectively ensuring the working efficiency of the power inverter 3.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An isolated power inverter, characterized in that: The invention comprises a power inverter (3); the power inverter (3) comprises a control panel (33); the control panel (33) is fixedly mounted on a cover plate (32); a slot for sealingly cooperating with a top shell (30) is provided on an edge of the cover plate (32); and the structure on the control panel (33) is connected to the wire posts (31) provided at both ends of the top shell (30), a heat dissipation fan, a socket, a switch and a grounding post respectively through wires.

2. The isolated power inverter according to claim 1, characterized in that: The power inverter (3) is fixedly mounted inside the insulating cover (1); the insulating cover (1) comprises a shell (10); the shell (10) is arranged in an open manner; and the two ends of the insulating cover (1) are respectively provided with a rectangular groove (11) and a semicircular groove (12) for exposing the wire pole (31) and the socket and switch.

3. The isolated power inverter according to claim 2, characterized in that: A plurality of rubber insulating strips (5) are provided between the inner surface of the housing (10) and the power inverter (3).

4. The isolated power inverter according to claim 3, characterized in that: Insulating support seats (2) are fixedly mounted on the four bottom corners of the insulating cover (1) away from the power inverter (3); the insulating support seats (2) are made of insulating rubber.

5. The isolated power inverter according to claim 4, characterized in that: The grounding post at one end of the housing (10) is connected to the grounding wire (4) and is also connected to the earth.

6. The isolated power inverter according to claim 4, characterized in that: The cover plate (32) is fixedly mounted to the bottom edge of the opening of the top shell (30) by means of bolts; the interior of the top shell (30) is arranged in a hollow cavity.

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