Wiring terminal mounting structure and static pressure variable type fan coil

Abstract

The utility model relates to a wiring terminal installation structure and a static pressure variable type fan coil, the wiring terminal installation structure comprises an electric control box and a wiring terminal installed in the electric control box, the wiring terminal is a five-position wiring terminal, and wiring ports are formed between a reinforcing block and partition blocks and between adjacent partition blocks. The wiring ports at least comprise an ultrahigh wind wiring port, a high wind wiring port, a medium wind wiring port, a low wind wiring port and a zero line wiring port, the medium wind wiring port and the low wind wiring port are connected with two live lines of the fan coil, and the zero line wiring port is connected with a zero line of the fan coil. And one of the ultrahigh wind wiring port and the high wind wiring port is selected to be connected with a live wire of the fan coil. According to the scheme, units with ultrahigh wind wiring ports and high wind wiring ports are combined, product models are reduced, the management difficulty of companies is reduced, the unit replacement and maintenance cost is greatly reduced, and the customer selection flexibility is higher.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a terminal block installation structure and a static pressure variable fan coil unit. Background Technology

[0002] In the existing technology, there are many models of fan coil units depending on the cooling capacity. In addition, there are different static pressures, resulting in dozens of fan coil unit models. This makes it difficult for companies to manage product range, warehousing and sales. At the customer end, incorrect selection may lead to the purchased unit not meeting the user's needs, resulting in returns and replacements, which brings unnecessary trouble to both companies and users. Summary of the Invention

[0003] To address the aforementioned issues, the first objective of this invention is to provide a terminal block installation structure that integrates the terminal blocks into the electrical control box, transforming the original four-position terminal block into a five-position structure, representing ultra-high wind speed, high wind speed, medium wind speed, low wind speed, and neutral wire. This merges the ultra-high wind speed and high wind speed settings, reducing product models, improving product versatility, lowering management difficulty, significantly reducing replacement and maintenance costs, and providing customers with greater flexibility in their choices. The second objective of this invention is to provide a static pressure variable fan coil unit with the aforementioned terminal block installation structure. When connected to the ultra-high wind speed setting, the static pressure is 30Pa; when connected to the high wind speed setting, the static pressure is 12Pa, thus achieving adjustable static pressure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A terminal block mounting structure includes an electrical control box and terminal blocks installed inside the electrical control box. The terminal block is a five-position terminal block, comprising a base with reinforcing blocks formed on both sides of its upper end. Multiple partition blocks are spaced between the reinforcing blocks, and wiring ports are formed between the reinforcing blocks, partition blocks, and adjacent partition blocks. These wiring ports include at least an ultra-high wind power connection port, a high wind power connection port, a medium wind power connection port, a low wind power connection port, and a neutral wire connection port. The medium wind power connection port and the low wind power connection port are connected to two live wires of the fan coil unit. The neutral wire connection port is connected to one neutral wire of the fan coil unit. One of the ultra-high wind power connection port and the high wind power connection port is selected to connect to one live wire of the fan coil unit. Connection holes are provided on both sides of the upper end of the base, and screws are screwed into the connection holes to fix the five-position terminal block inside the electrical control box.

[0006] Preferably, the outer end of the reinforcing block is recessed inward to form an arc surface, and the connecting hole is correspondingly disposed on the side of the arc surface and extends close to the arc surface.

[0007] Preferably, the electrical control box includes an electrical control box body and an electrical control box cover installed on the electrical control box body. The five-position terminal block is fixedly installed on the electrical control box body. A connecting plate is provided on one side of the electrical control box body, and the connecting plate is provided with a plurality of fixing holes for fixing and cooperating with the fan coil unit.

[0008] Preferably, the upper and lower ends of the electrical control box body are provided with flanges, and the flanges are provided with limiting holes. The upper and lower ends of the electrical control box cover are provided with mating plates that abut against the inner side of the flanges, and the mating plates are provided with limiting protrusions that mate with the limiting holes.

[0009] Preferably, the flange and the mating plate are provided with screw holes respectively.

[0010] Preferably, the upper mating plate is provided with several fan wire threading holes.

[0011] Preferably, the cover of the electrical control box is provided with a sealing plate opposite to the connecting plate, and the sealing plate has a power cord through hole, with a rolled edge reinforcing rib at the inner end of the power cord through hole.

[0012] A static pressure variable fan coil unit, characterized in that it includes a wiring terminal mounting structure as described in any one of the above-mentioned methods.

[0013] The present invention adopts the above technical solution and has the following beneficial effects:

[0014] The main principle of this solution is to install the wiring terminals inside the electrical control box and change the four-position wiring terminal to a five-position wiring terminal, adding a fan speed setting with ultra-high, high, medium, low, and neutral wire terminals. In the customer's home, depending on the ceiling type, they can choose whether high static pressure is required. If 30Pa static pressure is needed, the highest setting is connected to the other end of the ultra-high speed interface of the five-position terminal, and the other three wires are connected to the other ends of the medium, low, and neutral wire interfaces respectively. If no high static pressure is required, the highest setting is connected to the other end of the high speed interface of the five-position terminal, and the other three wires are connected to the other ends of the medium, low, and neutral wire interfaces respectively. Finally, the electrical control box is mounted on the fan coil unit through the mounting holes, thus achieving adjustable static pressure for the fan coil unit. This solution replaces the unit's three-speed AC motor with a four-speed motor. The process route of this unit is consistent with the traditional three-speed unit, with a simple structure. Combining the 12Pa and 30Pa units reduces product models, simplifies company management, significantly reduces replacement and maintenance costs, and provides customers with greater flexibility.

[0015] The engineering team will connect the wiring according to the actual installation scenario ①.

[0016] 12Pa static pressure wiring:

[0017] Connect the three live wires and one neutral wire to the four ports: high 12Pa, medium, low, and neutral (leave the high 30Pa port unconnected).

[0018] The engineering team will connect the wiring according to the actual installation scenario ②.

[0019] 30Pa static pressure wiring:

[0020] Connect the three live wires and one neutral wire to the four ports: high 30Pa, medium, low, and neutral (leave the high 12Pa port unconnected). Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a static pressure variable fan coil unit.

[0022] Figure 2 A three-dimensional structural diagram showing the installation of the five-position terminal block and the main body of the electrical control box.

[0023] Figure 3 A front view diagram showing the installation of the five-position terminal block and the main body of the electrical control box.

[0024] Figure 4 This is a three-dimensional structural diagram of a five-position terminal block.

[0025] Figure 5 This is a three-dimensional structural diagram of part of the electrical control box body.

[0026] Figure 6 This is a schematic diagram of the assembly of the electrical control box body and the electrical control box cover.

[0027] Figure 7 This is a three-dimensional structural diagram of the electrical control box cover.

[0028] Figure 8 This is a three-dimensional structural diagram of the electrical control box cover from another perspective. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", 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.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example 1:

[0034] like Figures 2-8The diagram illustrates a terminal block installation structure, including an electrical control box and terminal blocks installed within the control box. The terminal blocks are five-position terminal blocks 1, each comprising a base 2. Reinforcing blocks 3 are formed on both sides of the upper end of the base 2. Multiple partition blocks 4 are spaced apart between the reinforcing blocks 3. Connection ports 5 are formed between the reinforcing blocks 3, partition blocks 4, and adjacent partition blocks 4. These connection ports 5 include at least a high-wind connection port, a high-wind connection port, a medium-wind connection port, a low-wind connection port, and a neutral connection port. The medium-wind and low-wind connection ports are connected to the two live wires of the fan coil unit. The neutral connection port is connected to one neutral wire of the fan coil unit. One of the high-wind and high-wind connection ports is selected to connect to one live wire of the fan coil unit. Connection holes 6 are provided on both sides of the upper end of the base 2. Screws are screwed into the connection holes 6 to fix the five-position terminal block 1 inside the electrical control box.

[0035] In the above technical solution, the wiring terminals are fixedly installed inside the electrical control box, and the four-position wiring terminals are changed to five-position wiring terminals, adding one wind speed setting. These are the ultra-high wind connection port, high wind connection port, medium wind connection port, low wind connection port, and neutral wire connection port. In the customer's home, depending on the ceiling method, it is possible to choose whether high static pressure is required. If 30Pa static pressure is required, the highest setting is connected to the other end of the ultra-high wind interface of the five-position terminal, and the other three wires are connected to the other ends of the medium wind, low wind, and neutral wire interfaces, respectively. If there is no high static pressure requirement, the highest setting is connected to the other end of the high wind interface of the five-position terminal, and the other three wires are connected to the other ends of the medium wind, low wind, and neutral wire interfaces, respectively. This solution has a simple structure, can combine 12Pa and 30Pa units, reduce product models, reduce management difficulty, greatly reduce replacement and maintenance costs, and provide customers with greater flexibility.

[0036] Furthermore, the outer end of the reinforcing block 3 is recessed inward to form an arc surface 7, and the connecting hole 6 is correspondingly disposed on the side of the arc surface 7 and extends close to the arc surface 7. In this technical solution, the arc surface of the reinforcing block allows the connecting hole to be extended to a larger extent, making the terminal more secure when installed on the electrical control box.

[0037] Furthermore, the electrical control box includes an electrical control box body 8 and an electrical control box cover 9 mounted on the electrical control box body 8. The five-position terminal block 1 is fixedly mounted on the electrical control box body 8. A connecting plate 10 is provided on one side of the electrical control box body 8, and the connecting plate 10 has several fixing holes 11 for fixedly engaging with the fan coil unit 100. In this technical solution, the electrical control box body is fixedly connected to the fan coil unit through the connecting holes on the connecting plate. It should be noted that in this case, other internal components of the electrical control box body are omitted, and only the terminal blocks are shown.

[0038] Furthermore, the upper and lower ends of the electrical control box body 8 are provided with flanges 12, and the flanges 12 are provided with limiting holes 13. The upper and lower ends of the electrical control box cover 9 are provided with mating plates 14 that abut against the inner side of the flanges 12, and the mating plates 14 are provided with limiting protrusions 15 that cooperate with the limiting holes 13. In this technical solution, the cooperation of the limiting holes and limiting protrusions can prevent the electrical control box body from wobbling left and right, and improve the assembly stability of the two.

[0039] Furthermore, the flange 12 and the mating plate 14 are respectively provided with screw holes 16. In this technical solution, screws are screwed into the screw holes to further fix the electrical control box body and the electrical control box cover, thereby improving stability.

[0040] Furthermore, the upper mating plate 14 is provided with several fan wire through holes 17. In this technical solution, the fan wire through holes are used to allow multiple fan wires in the fan coil unit to pass through and connect to the terminal blocks.

[0041] Furthermore, a sealing plate 18 is provided on the electrical control box cover 9 opposite to the connecting plate 10. A power cord passage hole 19 is provided on the sealing plate 18, and a rolled edge reinforcing rib 20 is provided at the inner end of the power cord passage hole 19. In this technical solution, the power cord passage hole is used for the user's power cord to pass through, and the rolled edge reinforcing rib makes the inner end of the hole rounded to prevent the user's power cord from being cut by the sheet metal. Example 2:

[0042] like Figure 1 The illustration shows a static pressure variable fan coil unit, which includes a terminal mounting structure as shown in Embodiment 1.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A terminal block mounting structure, comprising an electrical control box and terminal blocks installed within the electrical control box, characterized in that: The terminal block is a five-position terminal block (1). The five-position terminal block (1) includes a base (2). Reinforcing blocks (3) are formed on both sides of the upper end of the base (2). Multiple partition blocks (4) are spaced between the reinforcing blocks (3) on both sides. A wiring port (5) is formed between the reinforcing blocks (3), the partition blocks (4), and the adjacent partition blocks (4). These wiring ports (5) include at least an ultra-high wind wiring port, a high wind wiring port, a medium wind wiring port, a low wind wiring port, and a neutral wire wiring port. The medium wind wiring port and the low wind wiring port are connected to the two live wires of the fan coil unit. The neutral wire wiring port is connected to one neutral wire of the fan coil unit. One of the ultra-high wind wiring port and the high wind wiring port is selected to connect to one live wire of the fan coil unit. Connection holes (6) are provided on both sides of the upper end of the base (2). Screws are screwed into the connection holes (6) to fix the five-position terminal block (1) in the electrical control box.

2. The terminal block mounting structure according to claim 1, characterized in that: The outer end of the reinforcing block (3) is recessed inward to form an arc surface (7), and the connecting hole (6) is correspondingly disposed on the side of the arc surface (7) and extends close to the arc surface (7).

3. The terminal block mounting structure according to claim 1, characterized in that: The electrical control box includes an electrical control box body (8) and an electrical control box cover (9) installed on the electrical control box body (8). The five-position terminal block (1) is fixedly installed on the electrical control box body (8). A connecting plate (10) is provided on one side of the electrical control box body (8). The connecting plate (10) has several fixing holes (11) that are fixedly matched with the fan coil unit (100).

4. The terminal block mounting structure according to claim 3, characterized in that: The upper and lower ends of the electrical control box body (8) are provided with flanges (12), and the flanges (12) are provided with limiting holes (13). The upper and lower ends of the electrical control box cover (9) are provided with mating plates (14) that abut against the inner side of the flanges (12), and the mating plates (14) are provided with limiting protrusions (15) that cooperate with the limiting holes (13).

5. The terminal block mounting structure according to claim 4, characterized in that: The flange (12) and the mating plate (14) are respectively provided with screw holes (16).

6. The terminal block mounting structure according to claim 5, characterized in that: The upper mating plate (14) is provided with several fan wire threading holes (17).

7. The terminal block mounting structure according to claim 4, characterized in that: The electrical control box cover (9) is provided with a sealing plate (18) opposite to the connecting plate (10). The sealing plate (18) has a power cord threading hole (19) and the inner end of the power cord threading hole (19) is provided with a rolled edge reinforcing rib (20).

8. A static pressure variable fan coil unit, characterized in that: Includes a terminal block mounting structure as described in any one of claims 1 to 7.

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