Clamping structure used in inverter and inverter employing same

Abstract

The utility model discloses an inverter internal clamping structure and an inverter employing the same, the clamping structure comprises an inverter housing and a cable joint, the cable joint is inserted on the inverter housing, the inverter housing is internally and fixedly provided with a clamping jaw, the cable joint is provided with a clamping ring at a corresponding position, and the clamping jaw is clamped in the clamping ring. The inverter comprises an inverter shell and a cable connector, the cable connector is inserted into the inverter shell, the inverter shell comprises an outer shell, an upper cover and a bottom cover, the upper cover and the bottom cover are fixedly installed at the two ends of the outer shell respectively, and the cable connector is inserted into the upper cover. According to the utility model, the clamping claws are matched with the clamping ring structure to realize the installation of the cable joint, on one hand, the installation structure is simpler, and the installation is faster and more convenient, and on the other hand, when the cable joint is damaged or breaks down, the cable joint can be conveniently disassembled for maintenance operation.

Description

Technical Field

[0001] The utility model discloses an inverter, in particular to an inverter internal clamping structure and an inverter adopting the structure, belonging to the technical field of small electronic equipment. Background Art

[0002] An inverter is an electronic device whose primary function is to convert direct current (DC) power into alternating current (AC) power. The input to an inverter is typically a DC power source, such as from a battery, solar photovoltaic panel, car battery, or DC power supply. The output is AC power, typically at a standard household grid voltage (such as 110V or 220V) and a frequency of 50Hz or 60Hz. Inverters use electronic switching elements (such as transistors or field-effect transistors) to periodically change the polarity and amplitude of the DC input voltage to generate an AC output voltage similar to a sine wave. The control circuit monitors the input DC voltage and adjusts the operating frequency and duty cycle of the switching elements as needed to ensure that the output AC voltage and frequency meet the requirements.

[0003] Inverters are generally classified by type: single-phase inverters, three-phase inverters, series inverters, standalone inverters, and central inverters. Inverters are widely used in solar power systems, electric vehicles, UPS systems, household appliances, and drive various types of motors, controllers, and industrial equipment. In short, inverters play a vital role in modern power systems and electronic equipment, enabling DC power to be compatible with widely used AC devices and playing a key role in energy conversion and transmission.

[0004] The inverter in the prior art usually includes a casing, an internal circuit and a cable connector. The cable connector is usually fixedly installed on the casing. Common installation methods usually include threaded connection. Even if an external thread is directly set on the cable connector, the cable connector is screwed on the casing. Alternatively, the cable connector can be fixed to the casing by screws, or fixed to the casing by glue, ultrasonic welding, etc., or the cable connector can be directly set together with the casing. The structures in the prior art are either complex in structure and the installation process is relatively cumbersome, or a fixed structure is adopted. Once damaged, it is inconvenient to repair and maintain. Summary of the Invention

[0005] In response to the above-mentioned shortcomings of the prior art inverter in that the cable connector and the housing connection structure are complex or adopt a fixed structure, the utility model provides an inverter internal clamping structure and an inverter adopting the structure, which realizes the installation of the cable connector by means of a clamping claw and a clamping ring structure.

[0006] The utility model solves the technical problem by adopting the following technical solution: a clamping structure for the interior of the inverter, the clamping structure comprising an inverter housing and a cable connector, the cable connector being inserted into the inverter housing, a clamping claw being fixedly provided inside the inverter housing, a clamping ring being provided at a corresponding position on the cable connector, and the clamping claw being clamped in the clamping ring.

[0007] An inverter adopting the above-mentioned inverter internal clamping structure, the inverter includes an inverter housing and a cable connector, the cable connector is inserted into the inverter housing, the inverter housing includes an outer shell, an upper cover and a bottom cover, the upper cover and the bottom cover are respectively fixedly mounted on both ends of the outer shell, and the cable connector is inserted into the upper cover.

[0008] The technical solution adopted by the utility model to solve its technical problems further includes:

[0009] There are six clamping claws, which are evenly distributed in a circle around the mounting hole of the cable connector inside the inverter housing.

[0010] The clamping claws are arranged obliquely toward the center of the cable connector mounting hole.

[0011] The bottom of the clamping claw is fixedly connected with a clamping claw connecting arm, and the clamping claw connecting arm is fixedly connected to the inside of the inverter housing.

[0012] The clamping claw and the clamping claw connecting arm are integrally arranged.

[0013] The cable connector is inserted into the inverter housing and is provided with a guide slope at the end position.

[0014] A retaining ring is fixedly arranged on the cable connector.

[0015] The position between the retaining ring and the clamping ring is defined as the extension arm.

[0016] The upper cover is fixedly mounted to the outer shell by upper cover mounting screws, a heat dissipation hole is opened on the upper cover, a heat dissipation fan is fixedly mounted inside the upper cover at a position corresponding to the heat dissipation hole, a fan hook is fixedly arranged inside the upper cover, two fan hooks are provided, and the two fan hooks are symmetrically arranged, and the heat dissipation fan is fixedly mounted inside the upper cover at a position corresponding to the heat dissipation hole by the fan hooks, and the bottom cover is fixedly mounted to the outer shell by the bottom cover mounting screws.

[0017] The beneficial effects of the present invention are as follows: the present invention realizes the installation of the cable connector by means of the clamping claws cooperating with the clamping ring structure, which on the one hand makes the installation structure simpler and the installation faster and more convenient; on the other hand, when it is damaged or fails, it can be easily disassembled for repair and maintenance operations.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the inverter in this utility model.

[0020] Figure 2 This is a schematic diagram of the inverter structure in the decomposed state in the present utility model.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the inverter in the present invention from another perspective.

[0022] Figure 4 This is a schematic diagram of the decomposed state structure of the inverter in the present invention from another perspective.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping structure in the utility model.

[0024] Figure 6 It is a structural schematic diagram of the decomposed state of the clamping structure in the utility model.

[0025] Figure 7 It is a schematic diagram of the top view of the clamping structure in the utility model.

[0026] Figure 8 for Figure 7 AA cross-sectional structure diagram.

[0027] In the figure, 1-housing, 2-upper cover, 3-bottom cover, 4-cable connector, 5-heat dissipation hole, 6-cooling fan, 7-fan hook, 8-upper cover mounting screw, 9-bottom cover mounting screw, 10-clamping ring, 11-guide slope, 12-extension arm, 13-blocking ring, 14-claw, 15-claw connecting arm. DETAILED DESCRIPTION

[0028] This embodiment is a preferred implementation of the present utility model. Other embodiments whose principles and basic structures are the same or similar to those of this embodiment are within the protection scope of the present utility model.

[0029] Please refer to the attached Figure 5 To the attached Figure 8 The utility model mainly protects a clamping structure used inside an inverter, which mainly includes an inverter housing and a cable connector 4. The cable connector 4 is inserted into the inverter housing. A clamping claw 14 is fixedly provided inside the inverter housing. A clamping ring 10 is provided at a corresponding position on the cable connector 4, and the clamping claw 14 is clamped in the clamping ring 10.

[0030] In this embodiment, six claws 14 are provided, evenly distributed around the circumference of the mounting hole for the cable connector 4 within the inverter housing. The claws 14 are tilted toward the center of the mounting hole for the cable connector 4. The bottom of the claws 14 is fixedly connected to a claw connecting arm 15, which is fixedly connected to the interior of the inverter housing. This means that the claws 14 are fixedly connected to the interior of the inverter housing via the claw connecting arm 15. The claw connecting arm 15 extends the length of the claws 14, making them less susceptible to damage during the clamping process. In this embodiment, the claws 14 and the claw connecting arm 15 are integrally formed, but are artificially defined as two parts.

[0031] In this embodiment, a guide slope 11 is provided at the end of the cable connector 4, which is inserted into the inverter housing. During insertion, the guide slope 11 spreads the claws 14 and claw connecting arms 15, facilitating insertion. A snap ring 10, in the form of an annular groove, is positioned appropriately within the cable connector 4. Once the cable connector 4 is inserted, the claws 14 engage within the snap ring 10.

[0032] In this embodiment, a retaining ring 13 is fixedly mounted on the cable connector 4. When the cable connector 4 is inserted into the inverter housing, the retaining ring 13 blocks the cable connector 4 from the outside of the inverter housing to prevent over-insertion. The area between the retaining ring 13 and the clamping ring 10 defines an extension arm 12. The extension arm 12 opposes the claw connecting arm 15 and acts as an extension. The cable connector 4 is hollow inside to facilitate cable insertion.

[0033] Please refer to the attached Figure 1 To the attached Figure 4 The present invention also protects an inverter that adopts the above-mentioned internal clamping structure of the inverter, which mainly includes an inverter housing and a cable connector 4. The cable connector 4 is inserted into the inverter housing. In this embodiment, the inverter housing includes an outer shell 1, an upper cover 2 and a bottom cover 3. The upper cover 2 and the bottom cover 3 are respectively fixedly mounted on both ends of the outer shell 1. The cable connector 4 is inserted into the upper cover 2. One end of the upper cover 2 is used to connect to a DC power supply. The bottom cover 3 is provided with a power socket for AC power output. In specific implementation, the cable connector 4 can also be installed on the outer shell 1 or the bottom cover 3.

[0034] In this embodiment, the upper cover 2 is fixed to the housing 1 using upper cover mounting screws 8. The upper cover 2 is provided with cooling holes 5. A cooling fan 6 is fixedly mounted inside the upper cover 2 at positions corresponding to the cooling holes 5. This fan 6 blows heat from the inverter through the cooling holes 5, effectively dissipating heat. A fan hook 7 is fixedly mounted inside the upper cover 2. In this embodiment, two fan hooks 7 are provided, symmetrically arranged. These hooks securely mount the cooling fan 6 inside the upper cover 2 at positions corresponding to the cooling holes 5.

[0035] In this embodiment, the bottom cover 3 is fixedly mounted to the housing 1 by bottom cover mounting screws 9 .

[0036] The utility model realizes the installation of the cable connector by means of the clamping claws cooperating with the clamping ring structure, which on the one hand makes the installation structure simpler and the installation faster and more convenient; on the other hand, when it is damaged or fails, it can be easily disassembled for repair and maintenance.

Claims

1. A clamping structure for an inverter, characterized by: The clamping structure comprises an inverter housing and a cable connector (4), wherein the cable connector (4) is inserted into the inverter housing, a clamping claw (14) is fixedly provided inside the inverter housing, a clamping ring (10) is provided at a corresponding position on the cable connector (4), and the clamping claw (14) is clamped in the clamping ring (10).

2. The internal clamping structure of the inverter according to claim 1, characterized in that: There are six clamping claws (14), and the six clamping claws (14) are evenly distributed in a circumference around the mounting hole of the cable connector (4) inside the inverter housing.

3. The internal clamping structure of the inverter according to claim 1, characterized in that: The clamping claw (14) is arranged obliquely toward the center of the installation hole of the cable connector (4).

4. The internal clamping structure of the inverter according to claim 1, characterized in that: The bottom of the clamping claw (14) is fixedly connected to a clamping claw connecting arm (15), and the clamping claw connecting arm (15) is fixedly connected to the inside of the inverter housing.

5. The internal clamping structure of the inverter according to claim 4, characterized in that: The clamping claw (14) and the clamping claw connecting arm (15) are integrally arranged.

6. The internal clamping structure of the inverter according to claim 1, characterized in that: The cable connector (4) is inserted into the inverter housing and provided with a guide slope (11) at the end position of the cable connector (4).

7. The internal clamping structure of the inverter according to claim 1, characterized in that: A retaining ring (13) is fixedly provided on the cable connector (4).

8. The internal clamping structure of the inverter according to claim 7, characterized in that: The position between the retaining ring (13) and the clamping ring (10) is defined as the extension arm (12).

9. An inverter using the inverter internal clamping structure according to any one of claims 1 to 8, characterized in that: The inverter comprises an inverter housing and a cable connector (4), wherein the cable connector (4) is inserted into the inverter housing. The inverter housing comprises an outer shell (1), an upper cover (2) and a bottom cover (3), wherein the upper cover (2) and the bottom cover (3) are fixedly mounted at both ends of the outer shell (1), respectively, and the cable connector (4) is inserted into the upper cover (2).

10. The inverter according to claim 9, characterized in that: The upper cover (2) is fixedly mounted on the outer shell (1) by means of upper cover mounting screws (8), a heat dissipation hole (5) is provided on the upper cover (2), a heat dissipation fan (6) is fixedly mounted inside the upper cover (2) at a position corresponding to the heat dissipation hole (5), a fan hook (7) is fixedly arranged inside the upper cover (2), two fan hooks (7) are provided, and the two fan hooks (7) are symmetrically arranged, and the heat dissipation fan (6) is fixedly mounted inside the upper cover (2) at a position corresponding to the heat dissipation hole (5), and the bottom cover (3) is fixedly mounted on the outer shell (1) by means of the bottom cover mounting screws (9).

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