Shell, actuator and electric ball valve

Abstract

The utility model relates to the technical field of valves, in particular to a shell, an actuator and an electric ball valve. The shell comprises an upper shell and a lower shell, the upper shell comprises a first main body shell, a first shell and a second shell which are communicated, the first shell and the second shell are convexly arranged at the top end of the first main body shell, and the bottom end of the first main body shell is opened; the first shell is used for accommodating the driving piece, and the second shell is used for accommodating a control module for controlling the driving piece and a connecting wire between the control module and the driving piece. The lower shell comprises a second main body shell and a connecting part which are communicated, the top end of the second main body shell is opened, and the bottom end of the first main body shell is buckled to the top end of the second main body shell; a groove is formed in the bottom end of the second main body shell, a connecting part is arranged on the inner wall of the groove in a protruding mode, and an output shaft of the driving piece can rotationally penetrate through the connecting part. The actuator and the electric ball valve each comprise the shell, the wire arrangement space is enlarged, the heat dissipation effect of the shell is enhanced, protection on the connecting wire is improved, and the longitudinal space occupied by the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a shell, an actuator and an electric ball valve. Background Art

[0002] In an electric ball valve, the actuator consists of two parts, the upper and lower shells, which are used to control the rotation of the valve stem, and then control the switch, flow rate and flow direction of the pipeline where the electric ball valve is located.

[0003] In the housing of the actuator, a truncated cone structure is protruded upward from the top of the housing and a connecting structure is protruded from the bottom. A motor, a control module and a connecting line between the motor and the control module are installed in the truncated cone structure. The control module controls the rotation of the shaft through the motor. The connecting structure of the housing is connected to the valve, and the shaft drives the valve stem to rotate synchronously. The longitudinal space of the housing of the existing actuator is too large, resulting in a large space occupied by the actuator during packaging and installation. At the same time, the motor, the control module and the connecting line between the two are all installed in the same truncated cone structure, which makes the internal space of the truncated cone structure crowded, the wiring of the connecting line is limited, and the heat dissipation effect is poor, which accelerates the aging of the rubber on the surface of the connecting line and easily causes the circuit inside the actuator to fail or short-circuit. Utility Model Content

[0004] The utility model aims to provide a housing, an actuator and an electric ball valve to solve the technical problems in the prior art that the longitudinal space of the actuator housing is too large, the wiring space is insufficient and the heat dissipation effect is poor.

[0005] To achieve this purpose, the technical solution adopted by the utility model is:

[0006] Housing, comprising:

[0007] An upper shell, the upper shell comprising a first main shell, a first shell and a second shell whose internal spaces are connected, the first main shell is provided with the first shell and the second shell on the top end, and the bottom end of the first main shell is open; the first shell is used to accommodate the driving member, and the second shell is used to accommodate the control module for controlling the driving member and the connection line between the control module and the driving member;

[0008] The lower shell comprises a second main shell and a connecting part which are connected to each other. The top end of the second main shell is opened, and the bottom end of the first main shell is buckled with the top end of the second main shell. The bottom end of the second main shell is provided with a groove, and the inner wall of the groove is convexly provided with the connecting part, and the output shaft of the driving member can rotate and pass through the connecting part.

[0009] As an optional solution, the second shell has a first side and a second side that are arranged opposite to each other, the first side is inclined toward the first shell in the height direction, the second side is connected to the first shell, and the bottom end of the second shell is connected to the top end of the first main shell.

[0010] As an optional solution, one of the bottom end of the first main body shell and the top end of the second main body shell is provided with a limiting protrusion extending outward, and the other is provided with a first limiting groove, and the limiting protrusion is snap-fitted with the first limiting groove.

[0011] As an optional solution, the second shell and the connecting portion are staggered in height direction.

[0012] As an optional solution, an arm plate is extended from the bottom end of the first main body shell relative to the second main body shell, and the second main body shell is provided with a second limiting groove. The arm plate is clamped in the second limiting groove, and the end of the arm plate and the inner side wall of the second limiting groove form an outlet hole for the power cord to pass through.

[0013] As an optional solution, the second shell is used to install the control module electrically connected to the power line, and the part of the control module that is connected to the power line is flush with the outlet hole.

[0014] As an optional solution, the bottom end of the first main body shell and the top end of the second main body shell are welded into one body.

[0015] As an optional solution, the bottom end of the second main body shell has a chamfered surface that is inclined upward and outward from bottom to top along the height direction.

[0016] The actuator comprises a driving member, a control module and the above-mentioned shell, wherein the driving member is accommodated in the first shell, the output shaft of the driving member rotates and penetrates the connecting part, and the control module and the connecting line between the control module and the driving member are accommodated in the second shell.

[0017] An electric ball valve comprises a valve and the above-mentioned actuator, wherein the actuator controls the opening and closing of the valve and adjusts the opening degree of the valve.

[0018] The beneficial effects of the utility model are:

[0019] The housing proposed by the utility model has a first shell for accommodating a driving member, and a second shell for accommodating a control module and a connecting wire, so that the control module and the connecting wire are installed separately from the driving member, and have sufficient wire arrangement space, which is convenient for arranging the connecting wire. Moreover, a heat dissipation space can be reserved inside the second shell, which enhances the heat dissipation effect of the housing, avoids damage to the connecting wire, and improves the protection of the connecting wire. The connecting part is located in the groove at the bottom end of the second main body shell, which compresses the longitudinal height of the housing and reduces the longitudinal space occupied by the housing.

[0020] The actuator proposed by the utility model includes the above-mentioned shell, and the control module and the connecting wire are installed separately from the driving part, with sufficient wire management space, which is convenient for arranging the connecting wire. Moreover, heat dissipation space can be reserved inside the second shell, which enhances the heat dissipation effect of the shell, avoids damage to the connecting wire, and improves the protection of the connecting wire. The connecting part is located in the groove at the bottom end of the second main shell, which compresses the longitudinal height of the shell and reduces the longitudinal space occupied by the shell.

[0021] The electric ball valve proposed by the utility model includes a valve and the above-mentioned actuator. The control module and the connecting wire are installed separately from the driving member, and there is sufficient wire arrangement space, which is convenient for arranging the connecting wire. Moreover, a heat dissipation space can be reserved inside the second shell, which enhances the heat dissipation effect of the shell, avoids damage to the connecting wire, and improves the protection of the connecting wire. The connecting part is located in the groove at the bottom end of the second main body shell, which compresses the longitudinal height of the shell and reduces the longitudinal space occupied by the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the housing provided by the embodiment of the utility model. Figure 1 ;

[0023] Figure 2 It is a front view of the housing provided by the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structural decomposition of the housing provided by an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the housing provided by the embodiment of the utility model. Figure 2 .

[0026] The names and numbers of the components in the figure are as follows:

[0027] 1. upper shell; 11. first main body shell; 111. limiting convex part; 12. first shell; 13. second shell; 131. first side; 14. arm plate;

[0028] 2. Lower shell; 21. Second main body shell; 210. Wire outlet hole; 211. Groove; 212. First limiting groove; 213. Second limiting groove; 214. Beveled surface; 22. Connecting part. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0034] This embodiment proposes an actuator, which is mainly used in an electric ball valve. The actuator includes a driving member, a control module and a housing. The driving member and the control module are both installed in the housing. The control module controls the rotation of the valve stem of the valve through the driving member, thereby controlling the switch, flow rate and flow direction of the pipeline where the electric ball valve is located. Since the control module is a prior art, the structure and working process of the control module will not be described in detail.

[0035] The vertical space of the existing actuator housing is too large, resulting in the actuator occupying a large space during packaging and installation. At the same time, the motor, control module and the connecting wires between the two are installed in the same truncated cone structure, which makes the internal space of the truncated cone structure crowded, the wiring of the connecting wires is limited, and the heat dissipation effect is poor, which accelerates the aging of the rubber layer on the surface of the connecting wires and easily causes the circuit inside the actuator to fail or short-circuit.

[0036] To solve the above problems, Figure 1 and Figure 2 As shown, this embodiment also proposes a shell, which includes an upper shell 1 and a lower shell 2. The upper shell 1 includes a first main shell 11, a first shell 12, and a second shell 13 whose internal spaces are connected. The top of the first main shell 11 is convexly provided with the first shell 12 and the second shell 13, and the bottom of the first main shell 11 is open. The first shell 12 is used to accommodate the driving member, and the second shell 13 is used to accommodate the control module that controls the driving member and the connecting line between the control module and the driving member. The lower shell 2 includes a second main shell 21 and a connecting portion 22 that are connected. The top of the second main shell 21 is open, and the bottom of the first main shell 11 is buckled with the top of the second main shell 21. The bottom of the second main shell 21 is provided with a groove 211, and the inner wall of the groove 211 is convexly provided with a connecting portion 22, and the output shaft of the driving member can rotate and penetrate the connecting portion 22.

[0037] In the actuator, the driving member is accommodated in the first shell 12, the output shaft of the driving member rotates and penetrates the connecting part 22, and the control module and the connecting wire are both accommodated in the second shell 13, so that the control module and the connecting wire are installed separately from the driving member, with sufficient wire management space, which is convenient for the arrangement of the connecting wire. Moreover, heat dissipation space can be reserved inside the second shell 13, which enhances the heat dissipation effect of the shell, avoids damage to the connecting wire, and improves the protection of the connecting wire. The connecting part 22 is located in the groove 211 at the bottom end of the second main shell 21, which compresses the longitudinal height of the shell and reduces the longitudinal space occupied by the shell.

[0038] Specifically, the driving member of this embodiment is a cylindrical motor, such as Figure 1 As shown, the first shell 12 is a truncated cone shell adapted to the motor, so that the motor can be stably mounted in the first shell 12, thereby achieving compact installation of the motor.

[0039] like Figure 1 and Figure 2As shown, the second shell 13 has a first side 131 and a second side that are arranged opposite to each other, the first side 131 is arranged obliquely toward the first shell 12 along the height direction, the second side is connected to the first shell 12, and the bottom end of the second shell 13 is connected to the top end of the first main body shell 11. Specifically, the shape of the longitudinal cross-section of the second shell 13 is roughly a right triangle, and the first side 131 of the second shell 13 is the inclined surface where the hypotenuse of the right triangle is located, which reduces the lateral space of the second shell 13 ( Figure 2 The second side (i.e., the right side) of the second shell 13 is connected to the first shell 12, so that one end of the connecting line can be electrically connected to the driving member, and the other end of the connecting line can be electrically connected to the control module.

[0040] like Figure 2 As shown, the bottom end of the second main body shell 21 is concave to form a groove 211, and the connecting portion 22 is located in the groove 211, which compresses the longitudinal height of the shell and reduces the longitudinal space occupied by the shell. After the motor is installed in the first shell 12, the output shaft of the motor rotates and passes through the connecting portion 22. The second shell 13 and the connecting portion 22 are staggered in the height direction to avoid interference between the output shaft of the motor and the control module in the second shell 13, and optimize the layout of the motor and the control module in the shell.

[0041] like Figure 2 and Figure 3 As shown, one of the bottom end of the first main body shell 11 and the top end of the second main body shell 21 is provided with a limited convex portion 111 extending outward, and the other is provided with a first limiting groove 212, and the limited convex portion 111 is engaged with the first limiting groove 212. When the bottom end of the first main body shell 11 is buckled on the top end of the second main body shell 21, the limited convex portion 111 is engaged in the first limiting groove 212 to achieve the circumferential limit of the first main body shell 11 and the second main body shell 21, thereby improving the assembly efficiency and stability of the shell. In this embodiment, the bottom end of the first main body shell 11 is provided with two limited convex portions 111 at intervals along the circumferential direction, and the top end of the second main body shell 21 is correspondingly provided with two first limiting grooves 212. In other embodiments, the bottom end of the first main body shell 11 is provided with a first limiting groove 212, and the top end of the second main body shell 21 is provided with a limited convex portion 111 extending outward. It is understandable that the number and size of the limiting protrusions 111 and the first limiting grooves 212 can be flexibly adjusted and are not specifically limited here.

[0042] It should be noted that the shell of this embodiment is a plastic shell, and the bottom end of the first main body shell 11 is welded to the top end of the second main body shell 21. Specifically, the bottom end of the first main body shell 11 and the top end of the second main body shell 21 are welded by laser welding, without the use of fasteners such as bolts, which simplifies the structure of the shell and improves the structural strength and sealing performance of the shell.

[0043] like Figure 3 and Figure 4 As shown, the bottom end of the first main body shell 11 is extended with an arm plate 14 relative to the second main body shell 21, and the second main body shell 21 is provided with a second limiting groove 213, the arm plate 14 is clamped in the second limiting groove 213, and the end of the arm plate 14 and the inner side wall of the second limiting groove 213 form an outlet hole 210 for the power line to pass through. Through the clamping cooperation of the arm plate 14 and the second limiting groove 213, the circumferential limit of the first main body shell 11 and the second main body shell 21 is realized, and the assembly efficiency and stability of the shell are further improved. At the same time, the end of the arm plate 14 and the inner side wall of the second limiting groove 213 jointly form the outlet hole 210, so that the outlet hole 210 is a split structure. The power line is perforated when the arm plate 14 is separated from the second limiting groove 213, and then assembled into a complete outlet hole 210 after the power supply is perforated, which reduces the difficulty of perforating the power line, improves the perforation efficiency, and is conducive to improving the assembly efficiency of the actuator.

[0044] It should be noted that the control module includes a circuit board, and the connecting wires and the power cord are both welded to the circuit board. The second shell 13 is used to install the control module electrically connected to the power cord, and the portion of the control module that interfaces with the power cord is flush with the outlet hole 210. The solder joint position on the circuit board is the portion that interfaces with the power cord. By aligning the outlet hole 210 with the solder joint to be welded on the circuit board, the height difference between the welding end of the power cord and the solder joint to be welded is reduced (along the up and down direction in the figure), so as to prevent the solder joint from falling off due to excessive tension in the power cord, thereby improving the welding stability of the power cord and the reliability of the actuator.

[0045] like Figure 4 As shown, the bottom end of the second main body shell 21 has a chamfered surface 214 arranged obliquely from bottom to top and outwardly along the height direction. By providing the chamfered surface 214, not only the material and cost of the shell are reduced, but also the volume and occupied space of the shell are reduced.

[0046] This embodiment also proposes an electric ball valve, which includes a valve and the above-mentioned actuator, and the actuator controls the opening and closing of the valve and adjusts the opening of the valve. The control module and the connecting wire are installed separately from the driving member, and there is sufficient wire management space, which is convenient for the arrangement of the connecting wire. Moreover, heat dissipation space can be reserved inside the second shell 13, which enhances the heat dissipation effect of the shell, avoids damage to the connecting wire, and improves the protection of the connecting wire. The connecting part 22 is located in the groove 211 at the bottom end of the second main body shell 21, which compresses the longitudinal height of the shell and reduces the longitudinal space occupied by the shell.

[0047] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A housing, characterized in that include: An upper shell (1), the upper shell (1) comprising a first main shell (11), a first shell (12) and a second shell (13) whose internal spaces are connected, the first main shell (11) having the first shell (12) and the second shell (13) protrudingly disposed at the top end thereof, and the bottom end of the first main shell (11) being open; the first shell (12) being used to accommodate a driving member, and the second shell (13) being used to accommodate a control module for controlling the driving member and a connection line between the control module and the driving member; A lower shell (2), the lower shell (2) comprising a second main shell (21) and a connecting portion (22) which are connected to each other; the top end of the second main shell (21) is open, and the bottom end of the first main shell (11) is buckled with the top end of the second main shell (21); a groove (211) is provided at the bottom end of the second main shell (21), and the connecting portion (22) is protruding from the inner wall of the groove (211); the output shaft of the driving member can rotate and penetrate the connecting portion (22).

2. The housing according to claim 1, characterized in that The second shell (13) comprises a first side (131) and a second side which are arranged opposite to each other, the first side (131) being arranged obliquely toward the first shell (12) along the height direction, the second side being connected to the first shell (12), and the bottom end of the second shell (13) being connected to the top end of the first main body shell (11).

3. The housing according to claim 1, characterized in that One of the bottom end of the first main body shell (11) and the top end of the second main body shell (21) is provided with a limiting protrusion (111) extending outward, and the other is provided with a first limiting groove (212), and the limiting protrusion (111) is snap-fitted with the first limiting groove (212).

4. The housing according to claim 1, characterized in that The second shell (13) and the connecting portion (22) are arranged in a staggered manner along the height direction.

5. The housing according to claim 1, characterized in that An arm plate (14) is extended from the bottom end of the first main body shell (11) relative to the second main body shell (21), and the second main body shell (21) is provided with a second limiting groove (213). The arm plate (14) is snap-fitted into the second limiting groove (213), and the end of the arm plate (14) and the inner side wall of the second limiting groove (213) form an outlet hole (210) for the power line to pass through.

6. The housing according to claim 5, characterized in that The second shell (13) is used to install the control module electrically connected to the power line, and the portion of the control module that interfaces with the power line is flush with the outlet hole (210).

7. The housing according to any one of claims 1 to 6, characterized in that: The bottom end of the first main body shell (11) and the top end of the second main body shell (21) are welded together.

8. The housing according to any one of claims 1 to 6, characterized in that: The bottom end of the second main body shell (21) has a chamfered surface (214) arranged to be inclined from bottom to top and outward along the height direction.

9. An actuator, characterized in that It comprises a driving member, a control module and a housing according to any one of claims 1 to 6, wherein the driving member is accommodated in the first housing (12), the output shaft of the driving member rotates and penetrates the connecting portion (22), and the control module and the connecting line between the control module and the driving member are accommodated in the second housing (13).

10. Electric ball valve, characterized in that: The invention comprises a valve and the actuator as claimed in claim 9, wherein the actuator controls the opening and closing of the valve and adjusts the opening degree of the valve.

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