Brushless electric valve housing

Abstract

This utility model discloses a brushless electric valve housing, including an upwardly recessed upper shell, a downwardly recessed lower shell, and a replaceable base. The lower edge of the upper shell and the upper edge of the lower shell are detachably and sealingly connected. A lower shell shaft hole is provided at the bottom of the lower shell. The replaceable base is detachably fixed to the bottom wall of the lower shell, and a base shaft hole is provided on the replaceable base directly opposite the lower shell shaft hole. A valve body connection hole matching the valve body is provided on the replaceable base outside the base shaft hole. Wiring holes are provided on either the upper or lower shell. When this utility model is used with different models of valve bodies, only the corresponding replaceable base needs to be replaced, eliminating the need to replace the entire motor housing, thus saving manufacturing costs. Furthermore, maintenance is quicker and more convenient, requiring only the upper shell to be disassembled.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts, and more specifically, to the housing of a brushless electric valve. Background Technology

[0002] In the field of fluid control, electric valves are widely used in water supply and drainage, HVAC, and gas applications due to their high degree of automation. Existing electric valve housings adapted to valve bodies with a diameter of 50 mm or less (DN50 and below) mainly face the following technical bottlenecks:

[0003] (1) Insufficient adaptability: Traditional housings are mostly designed for valve bodies of specific diameters, such as DN15-DN25, which require separate molds, resulting in high costs for small-batch production. For example, the housing of a DN15 electric valve is not compatible with a DN32 valve body, requiring the purchase of different models, increasing inventory pressure. The connection structure between the brushless motor and the valve body is fixed, making it difficult to adapt to the interface dimensions of different brands of valve bodies (such as differences in thread pitch and flange hole positions).

[0004] (2) Inconvenient installation and maintenance: The outer casing and valve body are mostly fixed by bolts, and disassembly requires special tools. In addition, the motor control wires are hidden inside the casing, and the whole unit needs to be disassembled during maintenance, which is time-consuming and labor-intensive. For example, it takes more than 20 minutes to remove eight screws when replacing the position sensor. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a brushless electric valve housing. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0006] The brushless electric valve housing includes an upwardly recessed upper shell, a downwardly recessed lower shell, and a replaceable base. The lower edge of the upper shell is detachably and sealingly connected to the upper edge of the lower shell. The bottom of the lower shell has a lower shell shaft hole. The replaceable base is detachably fixed to the bottom wall of the lower shell. The replaceable base has a base shaft hole directly opposite the lower shell shaft hole. The replaceable base has a valve body connection hole matching the valve body outside the base shaft hole. Wiring holes are provided on the upper shell or the lower shell.

[0007] Preferably, the brushless electric valve housing further includes a sealing ring, an upper sealing groove is formed on the lower end face of the periphery of the upper shell, and a lower sealing groove is formed on the upper end face of the periphery of the lower shell. The sealing ring is installed between the upper sealing groove and the lower sealing groove, thereby sealing the lower edge of the upper shell with the upper edge of the lower shell.

[0008] Preferably, the brushless electric valve housing further includes a first screw and a first nut. The four corners of the upper shell are provided with upper connecting ears protruding outward from outside the sealing ring. The upper connecting ears are provided with upper fixing through holes. The four corners of the lower shell are provided with lower connecting ears protruding outward from opposite to the upper connecting ears. The lower connecting ears are provided with lower fixing through holes. The first screw passes through the upper fixing through holes and the lower fixing through holes and is screwed into the first nut, thereby making the lower edge of the upper shell detachably connected to the upper edge of the lower shell.

[0009] Preferably, the wiring hole is located at the lower part of the lower shell, and a waterproof connector is installed on the wiring hole.

[0010] Preferably, the brushless electric valve housing further includes two nameplates. The two opposite outer side walls of the upper shell have downward-facing upper nameplate slots, and the outer side wall of the lower shell has a lower nameplate slot opposite the upper nameplate slot. The upper nameplate slot and the lower nameplate slot are joined to form a nameplate slot, and the nameplate is pasted in the nameplate slot.

[0011] Preferably, the brushless electric valve housing also includes a lamp cap, an inner lamp cap insertion hole that penetrates the upper housing is provided in the upper nameplate slot, and an outer lamp cap insertion hole is provided on the nameplate opposite the inner lamp cap insertion hole, and the lamp cap is inserted sequentially through the inner lamp cap insertion hole and the outer lamp cap insertion hole.

[0012] Preferably, the top of the upper shell has a top hole, and a rubber waterproof plug is inserted into the top hole.

[0013] Preferably, the bottom of the lower shell is recessed upward to form a base receiving groove that matches the shape and size of the replaceable base, and the replaceable base is installed in the base receiving groove.

[0014] Preferably, the brushless electric valve housing further includes a second screw and a second nut. The four corners of the bottom of the base receiving groove are respectively provided with upper connecting holes, and the four corners of the replaceable base are respectively provided with lower connecting holes opposite to the upper connecting holes. The second screw passes through the lower connecting holes and the upper connecting holes from bottom to top and is screwed into the second nut.

[0015] Compared with the prior art, when this utility model is connected to different models of valve bodies, only the corresponding replaceable base needs to be replaced, without replacing the entire motor housing, which saves manufacturing costs. Moreover, only the upper shell needs to be disassembled for inspection and maintenance, making maintenance faster and more convenient.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a structural diagram of the brushless electric valve housing from the first angle of this utility model;

[0019] Figure 2 for Figure 1 Exploded view;

[0020] Figure 3 This is a structural diagram of the brushless electric valve housing from a second angle.

[0021] Figure 4 for Figure 3 The exploded diagram. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] refer to Figures 1 to 4 The brushless electric valve housing of this utility model includes an upwardly recessed upper shell 1, a downwardly recessed lower shell 2, and a replaceable base 3. The lower edge of the upper shell 1 is detachably and sealingly connected to the upper edge of the lower shell 2. The bottom of the lower shell 2 has a lower shell shaft hole 21. The replaceable base 3 is detachably fixed to the bottom wall of the lower shell 2. The replaceable base 3 has a base shaft hole 31 opposite to the lower shell shaft hole 21. The replaceable base 3 has a valve body connection hole 32 matching the valve body outside the base shaft hole 31. The lower shell 2 has a wiring hole 22.

[0024] Specifically, the brushless electric valve housing also includes a sealing ring 4, a first screw (not shown), a first nut 5, a second screw (not shown), and a second nut 6. An upper sealing groove 11 is formed on the lower end face of the periphery of the upper shell 1, and a lower sealing groove 23 is formed on the upper end face of the periphery of the lower shell 2. The sealing ring 4 is installed between the upper sealing groove 11 and the lower sealing groove 23, thereby sealing the lower edge of the upper shell 1 with the upper edge of the lower shell 2. The upper shell 1 has four upper connecting ears 12 protruding outward from the sealing ring 11 at its four corners, each with an upper fixing through hole 121. The lower shell 2 has four lower connecting ears 24 protruding outward from its four corners opposite the upper connecting ears 12, each with a lower fixing through hole 241. The first screw passes through the upper fixing through hole 121 and the lower fixing through hole 241 and engages with the first nut 5, thereby allowing the lower edge of the upper shell 1 to be detachably connected to the upper edge of the lower shell 2. The wiring hole 22 is located at the bottom of the lower shell, and a waterproof connector 25 is sealed and installed on the wiring hole 22. The bottom of the lower shell 2 is recessed upward to form a base receiving groove 26 that matches the shape and size of the replaceable base 3, and the replaceable base 3 is installed in the base receiving groove 26. The four corners of the bottom of the base receiving groove 26 are respectively provided with upper connecting holes 261, and the four corners of the replaceable base 3 are respectively provided with lower connecting holes 33 opposite to the upper connecting holes 261. The second screw passes through the lower connecting holes 33 and the upper connecting holes 261 from bottom to top and is screwed into the second nut 6.

[0025] Preferably, the brushless electric valve housing further includes two nameplates 7, lamp caps 8, and rubber waterproof plugs 9. The upper shell 1 has two opposite outer side walls with downward-facing upper nameplate slots 13. The lower shell 2 has an outer side wall opposite the upper nameplate slots 13 with a lower nameplate slot 27. The upper nameplate slots 13 and 27 are joined to form nameplate slots, and the nameplates 7 are affixed to these slots. An inner lamp cap insertion hole 131 is formed in the upper nameplate slot 13, penetrating the upper shell 1. An outer lamp cap insertion hole 71 is formed opposite the inner lamp cap insertion hole 131 on the nameplate 7. The lamp caps 8 are sequentially inserted through the inner lamp cap insertion hole 131 and the outer lamp cap insertion hole 71. A top hole 14 is formed at the top of the upper shell 1, and the rubber waterproof plugs 9 are inserted into the top hole 14. The top of the replaceable base 3 is also provided with a positioning groove 34, and the bottom of the base receiving groove 26 is provided with a positioning boss 262 protruding downwards from the positioning groove 34. The positioning boss 262 is inserted into the positioning groove 34.

[0026] In use, the base metal plate 510 is fixed to the bottom wall of the lower shell 2 with screws. The base metal plate 510 has a motor mounting hole (not shown) and a valve body connecting shaft hole (not shown). The brushless motor 530 is fixedly installed on the base metal plate 510, and the output shaft of the brushless motor 530 passes downward through the motor mounting hole and connects to the drive wheel (not shown). The valve body connecting shaft 540 is rotatably inserted into the valve body connecting shaft hole. The lower end face of the valve body connecting shaft 540 has a mating groove 541. A driven wheel (not shown) is fixedly fitted on the valve body connecting shaft 540. The transmission belt (not shown) is wound around the drive wheel and the driven wheel. The circuit board 550 is fixed to the base metal plate 510 by copper pillars 551. The lamp extension on the circuit board 550 is directly opposite the lamp cap 8. The circuit board 550 is electrically connected to the brushless motor 530. The bottom of the lower housing 2 is also equipped with an emergency button 552 electrically connected to the circuit board 550. The bottom of the replaceable base 3 mates with the output end face (usually the flange end face) of the valve body. The valve body connection hole 32 is aligned with the output connection hole on the output end face of the valve body. A screw passes through the valve body connection hole and the output connection hole and is screwed into the nut to connect the bottom of the replaceable base 3 with the valve body. The input end of the valve body's shaft core engages with the docking slot 541 at the lower end of the valve body connecting shaft 540. The brushless motor 530 drives the drive wheel to rotate forward and backward, which in turn drives the driven wheel to rotate forward and backward, which in turn drives the valve body connecting shaft 540 to rotate forward and backward, which in turn drives the valve body's shaft core to rotate forward and backward, thereby controlling the opening and closing of the valve body. When this utility model is used with different models of valve bodies, only the replaceable base 3 of the corresponding specification needs to be replaced, without replacing the entire motor housing, saving manufacturing costs. Moreover, maintenance can be carried out by simply disassembling the upper housing 1, making maintenance quicker and more convenient. In addition, the sealing ring 4 is installed between the upper sealing groove 11 and the lower sealing groove 23, and the waterproof connector 25 is sealed on the wiring hole 22, which makes the sealing and moisture-proof effect of the housing better, thereby preventing the circuit board 550 from short-circuiting due to moisture.

[0027] It should be noted that the wiring hole 22 can also be located on the outer wall of the upper shell 1.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A brushless electric motor valve housing characterized by: The device includes an upwardly recessed upper shell (1), a downwardly recessed lower shell (2), and a replaceable base (3). The lower edge of the upper shell (1) is detachably and sealed to the upper edge of the lower shell (2). The bottom of the lower shell (2) is provided with a lower shell shaft hole (21). The replaceable base (3) is detachably fixed to the bottom wall of the lower shell (2). The replaceable base (3) is provided with a base shaft hole (31) directly opposite the lower shell shaft hole (21). The replaceable base (3) is provided with a valve body connection hole (32) matching the valve body outside the base shaft hole (31). The upper shell (1) or the lower shell (2) is provided with a wiring hole (22).

2. The brushless motor valve housing of claim 1, wherein: It also includes a sealing ring (4). The lower end face of the periphery of the upper shell (1) is provided with an upper sealing groove (11), and the upper end face of the periphery of the lower shell (2) is provided with a lower sealing groove (23). The sealing ring (4) is installed between the upper sealing groove (11) and the lower sealing groove (23), so that the lower edge of the upper shell (1) and the upper edge of the lower shell (2) are sealed and connected.

3. The brushless motor valve housing of claim 2, wherein: It also includes a first screw and a first nut (5). The four corners of the upper shell (1) are provided with upper connecting ears (12) protruding outward from the sealing ring (4). The upper connecting ears (12) are provided with upper fixing through holes (121). The four corners of the lower shell (2) are provided with lower connecting ears (24) protruding outward from the upper connecting ears (12). The lower connecting ears (24) are provided with lower fixing through holes (241). The first screw passes through the upper fixing through holes (121) and the lower fixing through holes (241) and screws into the first nut (5), so that the lower edge of the upper shell (1) and the upper edge of the lower shell (2) can be detachably connected.

4. The brushless motor valve housing of claim 1, wherein: The wiring hole (22) is located at the lower part of the lower shell (2), and a waterproof connector (25) is installed on the wiring hole (22).

5. The brushless electric valve housing according to claim 1, characterized in that: It also includes two nameplates (7). The upper shell (1) has an upper nameplate groove (13) with an opening facing downward on its two opposite outer side walls. The lower shell (2) has a lower nameplate groove (27) on its outer side wall opposite to the upper nameplate groove (13). The upper nameplate groove (13) and the lower nameplate groove (27) are joined together to form a nameplate groove. The nameplate (7) is pasted in the nameplate groove.

6. The brushless electric valve housing according to claim 5, characterized in that: It also includes a lamp cap (8), an inner lamp cap insertion hole (131) that penetrates the upper shell (1) is provided in the upper nameplate slot (13), and an outer lamp cap insertion hole (71) is provided on the nameplate (7) opposite the inner lamp cap insertion hole (131). The lamp cap (8) is inserted through the inner lamp cap insertion hole (131) and the outer lamp cap insertion hole (71) in sequence.

7. The brushless electric valve housing according to claim 1, characterized in that: The top of the upper shell (1) is provided with a top hole (14), and a rubber waterproof plug (9) is inserted into the top hole (14).

8. The brushless electric valve housing according to claim 1, characterized in that: The bottom of the lower shell (2) is recessed upward to form a base receiving groove (26) that matches the shape and size of the replaceable base (3), and the replaceable base (3) is installed in the base receiving groove (26).

9. The brushless electric valve housing according to claim 8, characterized in that: It also includes a second screw and a second nut (6). The four corners of the bottom of the base receiving groove (26) are respectively provided with upper connecting holes (261). The four corners of the replaceable base (3) are respectively provided with lower connecting holes (33) opposite to the upper connecting holes. The second screw passes through the lower connecting hole (33) and the upper connecting hole (261) from bottom to top and is screwed into the second nut (6).

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