AC / DC contactor

Abstract

The utility model discloses an AC / DC contactor, which comprises a contactor body, the contactor body comprises an upper shell and a lower shell which are connected with each other, the lower shell is internally provided with an inner cavity, the front part and the rear part of the inner cavity are respectively provided with a wiring channel, the inner cavity is internally provided with a bridge, the bridge comprises a bearing plate, and the two sides of the bottom of the bearing plate are respectively provided with a supporting plate. According to the utility model, the bridge frame is arranged in the contactor body, a physical basis is provided for installation of a circuit board with rich functions, and the circuit board is provided with the bridge frame, so that the circuit board can be installed conveniently, and the installation efficiency of the circuit board is improved. The contactor can easily have advanced functions which a traditional contactor does not have, and a circuit board which originally needs to be externally hung beside the contactor or at other positions of a control cabinet is directly integrated into the contactor body. Therefore, the occupied space in the control cabinet is greatly reduced, and the control cabinet has obvious advantages especially in the application of dense installation or limited space.

Description

Technical Field

[0001] This utility model relates to the field of contactor technology, specifically to an AC / DC contactor. Background Technology

[0002] A contactor is an automatic switching device that uses electromagnetic principles to control the opening and closing of high-current circuits. It belongs to low-voltage control electrical appliances (usually referring to circuits with operating voltages below AC 1000V or DC 1500V) and is one of the most basic and commonly used components in electrical automatic control systems.

[0003] The primary function of a contactor is to safely and reliably connect or disconnect a high-current main circuit (such as the power supply for motors, heaters, and lighting equipment) using a small-current control signal (usually from a button, relay, or PLC). It is designed to allow for high-frequency switching operations (e.g., hundreds or even thousands per hour), far exceeding the frequency of manual switches or circuit breakers. A standard contactor itself does not have overload or short-circuit protection functions (these are the functions of circuit breakers or thermal relays); it is only responsible for executing "open" and "close" commands.

[0004] The core function of contactors in current technology is limited to connecting / disconnecting the main circuit. To achieve additional functions (such as time delay, overload protection, status indication, and communication), external accessories (such as auxiliary contact groups, time relays, thermal relays, and communication modules) must be used. This results in high system complexity, a large number of components, and difficulty in implementing advanced or customized functions. External accessory modules require additional installation space (rail space), and numerous connecting wires are needed between modules and between modules and contactors. This leads to low space utilization within the control cabinet, dense and messy wiring, increased cabinet size and cost, potential impact on heat dissipation, difficulty in locating fault points, and is particularly disadvantageous in space-constrained applications (such as small equipment and compact control cabinets).

[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0006] The present invention provides an AC / DC contactor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An AC / DC contactor includes a contactor body, which comprises an upper housing and a lower housing connected to each other. The lower housing has an inner cavity, and wiring channels are provided at the front and rear of the inner cavity. A cable tray is provided inside the inner cavity. The cable tray includes a support plate, support plates are provided on both sides of the bottom of the support plate, and surrounding plates are provided on both sides of the top of the support plate. A mounting groove is formed between the two surrounding plates. The two support plates and the bottom of the inner cavity form a mounting chamber. The mounting groove and mounting chamber are used to mount circuit boards or other electronic components.

[0009] Preferably, both support plates are C-shaped and are arranged opposite to each other.

[0010] Preferably, both enclosure panels are C-shaped and are arranged opposite to each other.

[0011] Beneficial effects

[0012] The AC / DC contactor provided in this embodiment of the utility model has at least one of the following technical effects:

[0013] This invention, through the aforementioned technical solution, provides a physical basis for installing feature-rich circuit boards by incorporating a cable tray inside the contactor body. This allows the contactor to easily possess advanced functions not available in traditional contactors, integrating circuit boards that would otherwise need to be externally mounted next to the contactor or in other locations within the control cabinet directly into the contactor body. This significantly reduces the space occupied within the control cabinet, offering a particularly significant advantage in densely packed installations or space-constrained applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cable tray installed inside the lower housing of this utility model;

[0017] Figure 4 This is a schematic diagram of the cable tray structure of this utility model.

[0018] The correspondence between the labels and component names in the attached figures is as follows:

[0019] 1. Contactor body; 2. Upper housing; 3. Lower housing; 4. Inner cavity; 5. Wiring channel; 6. Cable tray; 7. Bearing plate; 8. Support plate; 9. Enclosure; 10. Mounting slot; 11. Mounting chamber. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.

[0024] like Figure 1-4 The diagram shown is a structural schematic of an AC / DC contactor according to a preferred embodiment of the present invention.

[0025] In this embodiment, a contactor body 1 is included. The contactor body 1 includes an upper housing 2 and a lower housing 3 connected to each other. The lower housing 3 has an inner cavity 4. The inner cavity 4 has wiring channels 5 at both the front and rear for internal wires. A cable tray 6 is provided inside the inner cavity 4. The cable tray 6 includes a support plate 7. Support plates 8 are provided on both sides of the bottom of the support plate 7. Surrounding plates 9 are provided on both sides of the top of the support plate 7. A mounting groove 10 is formed between the two surrounding plates 9. The two support plates 8 and the bottom of the inner cavity 4 form a mounting chamber 11. The mounting groove 10 and the mounting chamber 11 are used to install circuit boards or other electronic components. By providing a cable tray 6 inside the contactor body 1, a physical basis is provided for installing circuit boards with rich functions. This allows the contactor itself to easily possess advanced functions that traditional contactors do not have. Circuit boards that originally needed to be externally mounted next to the contactor body 1 or in other locations in the control cabinet can be directly integrated into the contactor body 1. This greatly reduces the space occupied in the control cabinet, especially in dense installations or space-constrained applications.

[0026] In this embodiment, both support plates 8 are C-shaped and are arranged opposite to each other, forming a mounting chamber 11 between the two support plates 8. The mounting chamber 11 is used to mount circuit boards or electronic components.

[0027] In this embodiment, both of the enclosure panels 9 are C-shaped structures and are arranged opposite to each other, forming a mounting groove 10 between the two enclosure panels 9. The mounting groove 10 is used to install circuit boards or electronic components.

[0028] The AC / DC contactor of this utility model has common mechanical installation, connection or setting methods, and can be implemented as long as it can achieve its beneficial effect.

[0029] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0030] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An AC / DC contactor, comprising a contactor body (1), the contactor body (1) comprising an upper housing (2) and a lower housing (3) connected to each other, characterized in that: The lower housing (3) has an inner cavity (4) inside. The inner cavity (4) has wiring channels (5) at the front and rear. The inner cavity (4) has a cable tray (6) inside. The cable tray (6) includes a support plate (7). The support plate (7) has support plates (8) on both sides of its bottom. The support plate (7) has a surrounding plate (9) on both sides of its top. An installation groove (10) is formed between the two surrounding plates (9). The two support plates (8) and the bottom of the inner cavity (4) form an installation chamber (11). The installation groove (10) and the installation chamber (11) are used to install circuit boards or other electronic components.

2. The AC / DC contactor according to claim 1, characterized in that: Both of the support plates (8) are in the shape of a "C" and are arranged opposite to each other.

3. An AC / DC contactor according to claim 1, characterized in that: Both of the enclosure panels (9) are in the shape of a "C" and are arranged opposite to each other.

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