Electric control valve

Abstract

The invention discloses an electric control valve which comprises a valve body component, a transmission component and a valve element component, the valve body component comprises a support, one of the support and the valve element component comprises an upper positioning part, the other of the support and the valve element component comprises an upper positioning hole, at least part of the upper positioning part is located in the upper positioning hole, and the transmission component comprises an output frame and a transmission rod. The valve element component comprises a valve element, and the transmission rod is eccentrically arranged relative to the rotating center of the valve element. The valve element and the transmission rod are fixedly connected or connected in a limiting mode or are of an integrated structure, the output frame comprises a first hole, and the upper end of the transmission rod is located in the first hole. Or the output frame and the transmission rod are fixedly connected or connected in a limiting mode or are of an integrated structure, the valve element comprises a second hole, and the lower end of the transmission rod is located in the second hole. On the basis that the valve element part is positioned by the support, the transmission rod is arranged in an eccentric mode relative to the rotating center of the valve element, and compared with the background technology, the rotating force arm of the valve element is lengthened, so that the force needed when the valve element rotates becomes small.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric control valves for air conditioning systems and heat pump systems, and particularly relates to an electric control valve. BACKGROUND

[0002] Figure 1a A half sectional view of a switch valve in the background art; Figure 1b A half sectional view of a switch valve in the background art; Figure 1a A schematic view of the cooperation between a valve rod and a valve ball.

[0003] As shown in the figure, the switch valve includes a valve ball 01, a valve rod 02 and a sealing seat 03, the valve ball 01 abuts against the sealing seat 03, the valve ball 01 is provided with a groove 011, the valve rod 02 is inserted into the groove 011, and the valve rod 02 can drive the valve ball 01 to rotate relative to the sealing seat 03 through key groove cooperation, so as to realize the opening and closing functions of the switch valve. The switch valve of this structure has improvement space because the force arm is short when the valve rod 02 drives the valve ball 01 to rotate, and the force required for the valve ball 01 to rotate is large. SUMMARY

[0004] The present application provides an electric control valve, which comprises a valve body component, a transmission component and a valve core component, the valve body component comprises a bracket, the valve core component is at least partially located in a valve cavity of the valve body component, one of the bracket and the valve core component comprises an upper positioning part, the other of the bracket and the valve core component comprises an upper positioning hole, the upper positioning part is at least partially located in the upper positioning hole, the transmission component comprises an output frame and a transmission rod, the valve core component comprises a valve core, the transmission rod is eccentrically arranged relative to the rotation center of the valve core; the valve core is fixedly connected or limitingly connected with the transmission rod or is an integral structure, the output frame comprises a first hole, the upper end part of the transmission rod is located in the first hole; or, the output frame is fixedly connected or limitingly connected with the transmission rod or is an integral structure, the valve core comprises a second hole, the lower end part of the transmission rod is located in the second hole. On the basis that the valve core component is positioned by the bracket, the transmission rod is arranged, the transmission rod is eccentrically arranged relative to the rotation center of the valve core, and the force arm of the valve core is lengthened relative to the background art, so that the force required for the valve core to rotate is reduced.

[0005] The application also provides an electric control valve, comprising a valve body component, a transmission component and a valve core component, the valve core component is at least partially located in a valve cavity of the valve body component, the valve body component comprises an end cover, one of the end cover and the valve core component comprises a lower positioning part, the other of the end cover and the valve core component comprises a lower positioning hole, the lower positioning part is at least partially located in the lower positioning hole, the transmission component comprises an output frame and a transmission rod, the valve core component comprises a valve core, the transmission rod is eccentrically arranged relative to the rotation center of the valve core; the valve core is fixedly connected or limitingly connected with the transmission rod or is an integrated structure, the output frame comprises a first hole, the upper end of the transmission rod is located in the first hole; or, the output frame is fixedly connected or limitingly connected with the transmission rod or is an integrated structure, the valve core comprises a second hole, the lower end of the transmission rod is located in the second hole. On the basis of the positioning of the valve core component by the end cover, the transmission rod is arranged, the transmission rod is eccentrically arranged relative to the rotation center of the valve core, the rotation arm of the valve core is lengthened relative to the background technology, and the required force for the rotation of the valve core is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1a It is a half sectional view of an electric control valve in the background art;

[0007] Figure 1b It is a half sectional view of an electric control valve in the background art; Figure 1a It is a schematic view of the cooperation between the valve rod and the valve ball in the background art;

[0008] Figure 2 It is a sectional view of an electric control valve provided by the application;

[0009] Figure 3 It is a sectional view of an electric control valve provided by the application; Figure 2 It is an enlarged schematic view of X in the background art;

[0010] Figure 4 It is a sectional view of the valve core in the background art (top view); Figure 2

[0011] It is a sectional view of the valve core in the background art (top view); Figure 5 Figure 2 It is a sectional view of the valve core in the background art (top view);

[0012] Figure 6 Figure 2 It is a sectional view of the valve core in the background art (top view);

[0013] Figure 7 It is a sectional view of the valve core in the background art (top view); Figure 2

[0014] Figure 8 It is a sectional view of the valve core in the background art (top view); Figure 2

[0015] ​​​​Figure 9 for Figure 2 A three-dimensional structural diagram of the intermediate gear ring;

[0016] Figure 10 A cross-sectional schematic diagram of another electric control valve provided by the present invention;

[0017] Figure 11 for Figure 10 A three-dimensional structural diagram of the intermediate gear ring;

[0018] Figure 12 for Figure 10 A schematic diagram of the mating structure of the output frame, transmission rod, and valve core;

[0019] Figure 13 for Figure 10 A three-dimensional structural diagram of the central support. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Figure 2 A cross-sectional schematic diagram of an electric control valve provided by the present invention; Figure 3 for Figure 2 Enlarged view of point X in the middle; Figure 4 for Figure 2 A cross-sectional view of the valve core (top view); Figure 5 for Figure 2 A three-dimensional structural diagram of the central support; Figure 6 for Figure 2 Schematic diagram of the cooperation structure between the output frame and the transmission rod; Figure 7 for Figure 2 A schematic diagram of the working structure of the output frame, transmission rod, and bracket; Figure 8 for Figure 2 A schematic diagram of the mating structure of the output frame, transmission rod, and valve core; Figure 9 for Figure 2 A three-dimensional structural diagram of the intermediate gear ring.

[0022] As shown in the figure, the electric control valve of this embodiment includes a valve body component 1, a transmission component 2, and a valve core component 3. The valve body component 1 includes a valve body 11, a bracket 12, an end cap 13, and a housing 14, and has a valve cavity 10. The valve body 11 is cylindrical and is machined from metal tubing or bar stock. The valve body 11 has an inner wall 112. The end cap 13 is flat and is machined from metal sheet. The housing 14 is formed from sheet or tubing by stamping and / or stretching. The upper end of the valve body 11 is fixedly connected to the housing 14, and the lower end of the valve body 11 is fixedly connected to the end cap 13.

[0023] The valve core component 3 is at least partially located in the valve cavity 10, and comprises a valve core 31 and a positioning rod 32. The valve core 31 comprises a through hole 30 extending to the upper surface and the lower surface of the valve core 31. The positioning rod 32 is in the shape of a rod and extends along the longitudinal direction of the electric control valve. The positioning rod 32 is partially located in the through hole 30 and protrudes above and below the valve core 31. The positioning rod 32 comprises an upper positioning portion 321 located above the valve core 31 and a lower positioning portion 322 located below the valve core 31.

[0024] The bracket 12 is in the shape of a circular plate and is formed by machining a metal plate or by powder metallurgy. The bracket 12 is at least partially located above the valve core 31 and is fixedly connected or circumferentially limitedly connected to the valve body 11, as shown in the specific embodiment. Figure 2 As shown in the specific embodiment, the valve body 11 comprises a stepped portion 111 with a stepped surface facing upward, and the bracket 12 is located on the stepped portion 111. The bracket 12 is welded to the valve body 11. The bracket 12 comprises an upper positioning hole 120, and the upper positioning portion 321 of the positioning rod 32 is located in the upper positioning hole 120. The end cover 13 is located below the valve core 31, and the end cover 13 comprises a lower positioning hole 130, and the lower positioning portion 322 of the positioning rod 32 is located in the lower positioning hole 130.

[0025] The bracket 12 and the end cover 13 can center the positioning rod 32, and the positioning rod 32 can center the valve core 31, so that the valve core 31 can rotate around the positioning rod 32.

[0026] In this embodiment, in order to improve the centering effect of the valve core 31, the upper end of the positioning rod 32 is centered and limited by the bracket 12, and the lower end of the positioning rod 32 is centered and limited by the end cover 13. However, as an alternative, only one of the two can be selected, and only the upper end or the lower end of the positioning rod 32 needs to be centered.

[0027] Of course, it is conceivable that, as a variant, the upper end of the positioning rod 32 is provided with an upper positioning hole, and the bracket 12 is provided with an upper positioning portion that protrudes into the upper positioning hole for positioning. Alternatively, the lower end of the positioning rod 32 is provided with a lower positioning hole, and the end cover 13 is provided with a lower positioning portion that protrudes into the lower positioning hole for positioning. In this way, the bracket 12 and the end cover 13 can also center the positioning rod 32.

[0028] As another variant, the valve core 31 and the positioning rod 32 can also be an integrated structure, for example, by plastic injection molding or by metal injection molding. In this embodiment, the valve core 31 comprises an upper positioning portion and a lower positioning portion, and the centering function of the valve core 31 can also be achieved.

[0029] In the embodiment, the electric control valve further comprises a power head component 7, which is specifically a motor or a rotor component. The transmission component 2 comprises a transmission rod 22, a gear ring 23 and a gear set 24, and the gear ring 23 is fixedly connected with the valve body 11 or the shell 14. The gear set 24 is specifically a planetary gear set, which comprises an output frame 21 made of metal powder metallurgy or plate stamping, and the output frame 21 is arranged on the above-mentioned support 12. After the electric control valve is powered on, the power head component 7 can drive the gear set 24 to rotate, that is, the output frame 21 can rotate. The output frame 21 comprises a first hole 211, and the valve core 31 comprises a second hole 311. The transmission rod 22 is in the shape of a rod, and the transmission rod 22 is arranged eccentrically relative to the rotation center of the valve core 31, and the transmission rod 22 comprises an upper end 221 and a lower end 222, the upper end 221 is located in the first hole 211, and the lower end 222 is located in the second hole 311. It should be noted that, since the valve core 31 rotates around the positioning rod 32, the center line L of the positioning rod 32 is equivalent to the rotation center of the valve core 31.

[0030] On the basis of the centering of the valve core 31, by arranging the transmission rod 22 arranged eccentrically relative to the rotation center of the valve core 31, relative to the background art, the turning arm of the valve core 31 (the distance between the transmission rod 22 and the center line L of the positioning rod 32) is lengthened in the scheme, so that the force required when the valve core 31 turns is smaller. Specifically in the electric control valve of the embodiment, the output torque of the power head component 7 (motor or rotor component) can be reduced, energy saving can be achieved, and it is also beneficial to the miniaturization of the electric control valve.

[0031] Of course, it can be conceived that the output frame 21 can also comprise a first groove, and the valve core 31 can also comprise a second groove, the upper end 221 of the transmission rod 22 is located in the first groove, and the lower end 222 is located in the second groove, which can also achieve the purpose of the present application.

[0032] As an optimization scheme, as shown in Figure 2 , Figure 3 , the electric control valve further comprises an upper bearing component 5 and a lower bearing component 6, which can be specifically a ball bearing, a needle bearing or a bearing sleeve, the upper bearing component 5 is at least partially located in the upper positioning hole 120, and the lower bearing component 6 is at least partially located in the lower positioning hole 130. If the positioning rod 32 rotates, the wear of the positioning rod 32 can be reduced by arranging the upper bearing component 5 and the lower bearing component 6, so as to improve the service life of the electric control valve.

[0033] Further, as shown in Figure 2 , Figure 3As shown, the electric control valve further comprises a valve seat component 4, which comprises a valve seat 41, a sealing gasket 42 and an elastic member 43. The valve seat 41 is fixedly connected with the valve body 11, the sealing gasket 42 is made of non-metallic material, and the elastic member 43 elastically abuts between the valve seat 41 and the sealing gasket 42. The valve core 31 comprises a spherical surface portion 312, and the sealing gasket 42 is abutted with the spherical surface portion 312 through the elastic force of the elastic member 43. The radius of the spherical surface portion 312 is defined as R, the transmission rod 22 is arranged along the longitudinal direction of the electric control valve, and the shortest distance between the transmission rod 22 and the rotation center of the valve core 31 is r, and r>1 / 3R is satisfied. In this way, the length of the rotation force arm of the valve core 31 is ensured, so that the required force of the valve core 31 during rotation is further reduced.

[0034] Further, as shown in the drawings, Figure 4 The valve core 31 comprises a fluid passage 313, and the positioning rod 32 is partially located in the fluid passage 313. Taking a plane perpendicular to the rotation center of the valve core 31 as a projection plane, the projection of the second hole 311 on the projection plane is located outside the projection of the fluid passage 313 on the projection plane. That is, the punching position of the second hole 311 avoids the fluid passage 313. In this way, on the one hand, the second hole 311 can be arranged deeper (in this embodiment, the second hole 311 is designed as a blind hole), so as to improve the cooperation strength when the transmission rod 22 drives the valve core 31 to rotate; on the other hand, the second hole 311 will not pass through the fluid passage 313 during machining, so as to avoid leakage and affect the sealing performance of the electric control valve.

[0035] As shown in the drawings, Figure 2 , Figure 5 , Figure 6 The bracket 12 comprises a shaft portion 121, and the output frame 21 comprises a shaft hole 210. The shaft portion 121 is at least partially located in the shaft hole 210, so that the output frame 21 can rotate relative to the bracket 12, and the shaft portion 121 is coaxially arranged with the upper positioning hole 120. Since the shaft portion 121 and the upper positioning hole 120 are arranged on the bracket 12, the coaxiality of the shaft portion 121 and the upper positioning hole 120 can be easily ensured during turning of the bracket 12. Since the shaft portion 121 centers the output frame 21 and the upper positioning hole 120 centers the valve core 31, the coaxiality of the output frame 21 and the valve core 31 is improved, so that the coaxiality of the output frame 21 and the valve core 31 is ensured, and the degree of skew of the transmission rod 22 in the radial direction of the bracket 12 is reduced, so as to improve the reliability of the rotation of the valve core 31 driven by the output frame 21 through the transmission rod 22.

[0036] In combination with Figure 5 , Figure 6 , Figure 7As shown, the bracket 12 includes a through hole 122, in the radial direction of the bracket 12, the through hole 122 is located outside the shaft part 121, the hole wall forming the through hole 122 includes a first stop part 1221 and a second stop part 1222. The output frame 21 includes a disc-shaped body part 212 and a limiting protrusion 213, the disc-shaped body part 212 has the above-mentioned shaft hole 210, the limiting protrusion 213 protrudes downward from the disc-shaped body part 212 along the longitudinal direction of the electric control valve, the limiting protrusion 213 is at least partially located in the through hole 122, that is, in the circumferential direction of the bracket 12, the limiting protrusion 213 is at least partially located between the first stop part 1221 and the second stop part 1222, so as to limit the circumferential rotation stroke of the output frame 21, since the output frame 21 rotates substantially synchronously with the valve core 31, that is, the rotation stroke of the valve core 31 can be limited, so as to realize the opening, closing and flow regulating functions of the electric control valve of the embodiment. Further, as shown in Figure 6 As shown, the lower end surface of the limiting protrusion 213 has a hole opening of at least part of the first hole 211, so as to make the depth of the first hole 211 deeper, that is, the transmission rod 22 can be inserted deeper, so as to improve the matching strength of the transmission rod 22 and the output frame 21.

[0037] Further, as shown in Figure 2 、 Figure 5 、 Figure 9 As shown, the output frame 21 is at least partially located in the inner cavity of the gear ring 23, the lower end part of the gear ring 23 has a groove 230. The bracket 12 further includes an engaging part 123, in the radial direction of the bracket 12, the engaging part 123 is located outside the output frame 21, and the engaging part 123 is at least partially located in the groove 230. Since the bracket 12 is fixedly connected or circumferentially limitedly connected with the valve body 11, so as to limit the rotation of the gear ring 23, the gear ring 23 does not need to be circumferentially limitedly connected through welding or other processes, and the assembly process is simplified.

[0038] It should be noted that, in the above-mentioned embodiments, as shown in Figure 2 、 Figure 8 As shown, the output frame 21, the valve core 31 and the transmission rod 22 are separate parts, and the three are matched through the shaft hole to realize the substantially synchronous rotation of the output frame 21 and the valve core 31. As a variant, the output frame 21 and the transmission rod 22 can be fixedly connected through welding, or the output frame 21 and the transmission rod 22 are an integral structure, for example, integrally formed through a metal powder metallurgy process, metal injection molding process or the like, so that the output frame 21 and the transmission rod 22 are as a whole, and the lower end part 222 of the transmission rod 22 is matched with the shaft hole of the valve core 31. The variant can also achieve the purpose of the present application, and also has the technical effects of the present application.

[0039] As another modification, the valve core component 3 can include the valve core 31 and the transmission rod 22, the valve core 31 is fixedly connected with the transmission rod 22 by welding, or the valve core 31 and the transmission rod 22 are integrated structures, for example, are integrally formed by a metal powder metallurgy process, a metal injection molding process, a plastic injection molding process, etc., the transmission component 2 includes the output frame 21, in this way, the valve core 31 and the transmission rod 22 are as a whole, and the upper end portion 221 of the transmission rod 22 is matched with the shaft hole of the output frame 21. This modification can also achieve the purpose of the present application and has the same technical effects as the present application.

[0040] Figure 10 Another cross-sectional view of the electric control valve provided by the present application is shown in the figure. Figure 11 As Figure 10 A perspective view of the middle gear ring is shown in the figure. Figure 12 As Figure 10 A matching structure diagram of the output frame, the transmission rod and the valve core is shown in the figure. Figure 13 As Figure 10 A perspective view of the bracket is shown in the figure.

[0041] Please continue to refer to Figures 10-13 In the embodiment, the transmission component 2A includes the output frame 21A, the gear ring 23A and the gear set 24A, the gear ring 23A includes the cylinder portion 231A, the first inner convex portion 232A and the second inner convex portion 233A. The cylinder portion 231A is in a cylindrical shape, and the inner wall of the cylinder portion 231A has a rack 2311A, and the gear set 24A is engaged with the rack 2311A. The first inner convex portion 232A and the second inner convex portion 233A protrude inward from the cylinder portion 231A. The output frame 21A includes the disc-shaped body portion 212A and the limiting convex portion 213A, the limiting convex portion 213A protrudes downward from the disc-shaped body portion 212A along the longitudinal direction of the electric control valve, and in the circumferential direction of the bracket 12A, the limiting convex portion 213A is at least partially located between the first inner convex portion 232A and the second inner convex portion 233A, in this way, the circumferential rotation stroke of the output frame 21A can be limited, and since the output frame 21A rotates substantially synchronously with the valve core 31A, the rotation stroke of the valve core 31A can also be limited, thereby achieving the valve opening, valve closing and flow regulation functions of the electric control valve of the embodiment. Further, the lower end surface of the limiting convex portion 213A has a hole opening of at least part of the first hole 211A, in this way, the depth of the first hole 211A can be set deeper, that is, the transmission rod 22 can be inserted deeper, thereby improving the matching strength of the transmission rod 22 and the output frame 21A.

[0042] The support 12A comprises a support portion 124A, a shaft portion 121A and an extension portion 125A. The support portion 124A supports the gear ring 23A and the output frame 21A, and has a waist-shaped hole 1240A through which the transmission rod 22 penetrates. The shaft portion 121A protrudes upward from the support portion 124A along the longitudinal direction of the electric control valve, and the output frame 21A has a shaft hole 210A in which the shaft portion 121A is at least partially located, so that the output frame 21A can rotate around the support 12A. The extension portion 125A extends downward from the support portion 124A along the longitudinal direction of the electric control valve, and comprises a first limiting portion 1251A and a second limiting portion 1252A. The valve body 11A has a valve body inner wall 112A, and the electric control valve further comprises a valve seat component 4A comprising a valve seat 41A fixedly connected with the valve body 11A. The valve seat 41A comprises a protruding portion 411A protruding inwardly from the valve body inner wall 112A, and in the circumferential direction of the support 12A, the protruding portion 411A is at least partially located between the first limiting portion 1251A and the second limiting portion 1252A. By seating the support 12A on the protruding portion 411A, the first limiting portion 1251A and the second limiting portion 1252A are located on both sides of the protruding portion 411A. In this way, the support 12A is easy to assemble and can be circumferentially limited without welding. Further, the outer circumferential wall of the support 12A is in clearance fit with the valve body inner wall 112A. On the one hand, the support 12A is easy to assemble, and on the other hand, the support 12A has an upper positioning hole 120A, and the upper positioning portion 321 of the positioning rod 32 is at least partially located in the upper positioning hole 120A, so that the support 12A has a certain self-centering function on the positioning rod 32.

[0043] Any combination of the above-described technical features of the embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0044] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and controls can be made, which are within the scope of protection of the present application.

Claims

1. An electrically controlled valve, characterized in that, include: The valve body component (1), transmission component (2), and valve core component (3) are provided. The valve core component (3) is at least partially located in the valve cavity (10) of the valve body component (1). The valve body component (1) includes a bracket (12). One of the bracket (12) and the valve core component (3) includes an upper positioning part (321). The other of the bracket (12) and the valve core component (3) includes an upper positioning hole (120). The upper positioning part (321) is at least partially located in the upper positioning hole (120). The transmission component (2) includes an output frame (21) and a transmission rod (22). The valve core component (3) includes a valve core (31). The transmission rod (22) is eccentrically positioned relative to the rotation center of the valve core (31). The valve core (31) is fixedly connected to the transmission rod (22), or is limited to a single unit. The output frame (21) includes a first hole (211), and the upper end (221) of the transmission rod (22) is located in the first hole (211). Alternatively, the output frame (21) may be fixedly connected to the transmission rod (22), or be a limiting connection or an integral structure, and the valve core (31) may include a second hole (311), with the lower end (222) of the transmission rod (22) located in the second hole (311).

2. The electric control valve according to claim 1, characterized in that, The valve core (31) includes a fluid channel (313), with a surface perpendicular to the rotation center of the valve core (31) as the projection surface. The valve core (31) is limitedly connected to the transmission rod (22), and the output frame (21) is limitedly connected to the transmission rod (22). The projection of the second hole (311) on the projection surface is located outside the projection of the fluid channel (313) on the projection surface.

3. The electric control valve according to claim 1, characterized in that, It also includes a sealing gasket (42), the valve core (31) includes a spherical part (312), the spherical part (312) abuts against the sealing gasket (42), the radius of the spherical part (312) is defined as R, the transmission rod (22) is arranged to extend longitudinally along the electric control valve, and the shortest distance between the rotation center of the transmission rod (22) and the valve core (31) is r, then the following condition is satisfied: r > 1 / 3R.

4. The electric control valve according to claim 1, characterized in that, The bracket (12) is fixedly connected or circumferentially limited to the valve body component (1). The output bracket (21) is placed on the bracket (12). The bracket (12) is at least partially located above the valve core (31). The bracket (12) includes a shaft portion (121). The output bracket (21) has a shaft hole (210). The shaft portion (121) is at least partially located in the shaft hole (210). The output bracket (21) is rotatable relative to the shaft portion (121).

5. The electric control valve according to claim 4, characterized in that, The valve core component (3) further includes a positioning rod (32), which extends longitudinally along the electric control valve. The valve core (31) includes a through hole (30), and the positioning rod (32) is partially located in the through hole (30). The positioning rod (32) includes an upper positioning part (321), and the bracket (12) includes an upper positioning hole (120). The shaft part (121) is coaxially arranged with the upper positioning hole (120).

6. The electrically controlled valve according to claim 5, characterized in that, The valve body component (1) further includes an end cap (13) located below the valve core (31). The end cap (13) includes a lower positioning hole (130). The positioning rod (32) further includes a lower positioning part (322), which is at least partially located in the lower positioning hole (130).

7. The electric control valve according to claim 4, characterized in that, The bracket (12) includes a through hole (122) located radially outward of the shaft portion (121). The transmission rod (22) is partially located within the through hole (122). The hole wall forming the through hole (122) includes a first stop portion (1221) and a second stop portion (1222). The output frame (21) includes a disc-shaped body portion (212) and a limiting protrusion (213). The disc-shaped body portion (212) has the shaft hole (210), and the limiting protrusion (213) protrudes downward from the disc-shaped body portion (212) along the longitudinal direction of the electric control valve. In the circumferential direction of the bracket (12), the limiting protrusion (213) is at least partially located between the first stop portion (1221) and the second stop portion (1222). The lower end face of the limiting protrusion (213) has at least a portion of the opening of the first hole (211).

8. The electric control valve according to any one of claims 1-7, characterized in that, The transmission component (2) further includes a gear ring (23), the output frame (21) is at least partially located in the inner cavity of the gear ring (23), the lower end (222) of the gear ring (23) has a groove (230), the bracket (12) includes a locking portion (123) in the radial direction of the bracket (12), the locking portion (123) is located outside the output frame (21), and the locking portion (123) is at least partially located in the groove (230).

9. The electric control valve according to any one of claims 1-7, characterized in that, The valve body component (1) further includes a valve body (11), the valve body (11) includes a stepped portion (111) with the stepped surface facing upward, the bracket (12) is placed on the stepped portion (111), and the bracket (12) is welded and fixed to the valve body (11).

10. The electric control valve according to any one of claims 1-7, characterized in that, The transmission component (2) further includes a gear ring (23A) and a gear set (24A). The gear ring (23A) includes a cylindrical portion (231A), a first inner protrusion (232A), and a second inner protrusion (233A). The inner wall of the cylindrical portion (231A) has a rack (2311A). The gear set (24A) meshes with the rack (2311A). The first inner protrusion (232A) and the second inner protrusion (233A) protrude inward from the cylindrical portion (231A). The output bracket (21) includes a disc-shaped body portion (212) and a limiting protrusion (213). The limiting protrusion (213) protrudes downward from the disc-shaped body portion (212) along the longitudinal direction of the electric control valve. In the circumferential direction of the bracket (12), the limiting protrusion (213) is at least partially located between the first inner protrusion (232A) and the second inner protrusion (233A). The lower end face of the limiting protrusion (213) has at least a portion of the opening of the first hole (211).

11. The electric control valve according to any one of claims 4-7, characterized in that, The valve body component (1) includes a valve body (11A), which has an inner wall (112A). The outer peripheral wall of the bracket (12A) is clearance-fitted with the inner wall (112A). The bracket (12) further includes a support portion (124A) and an extension portion (125A). The support portion (124A) supports the output frame (21A). The shaft portion (121A) protrudes upward from the support portion (124A) along the longitudinal direction of the electric control valve. The support portion (124A) has an oblong hole (1240A). The transmission rod (22) passes through the oblong hole (1240A). The extension portion (125A) protrudes upward from the support portion (124A). 4A) The extension (125A) extends downward along the longitudinal direction of the electric control valve. The extension includes a first limiting part (1251A) and a second limiting part (1252A). The electric control valve also includes a valve seat component (4A). The valve seat component (4A) includes a valve seat (41A). The valve seat (4A) is fixedly connected to the valve body (11A). The valve seat (4A) includes a protrusion (411A). The protrusion (411A) protrudes inwardly from the inner wall (112A) of the valve body. In the circumferential direction of the bracket (12A), the protrusion (411A) is at least partially located between the first limiting part (1251A) and the second limiting part (1252A).

12. An electrically controlled valve, characterized in that, include: The valve body component (1), transmission component (2), and valve core component (3) are provided. The valve core component (3) is at least partially located in the valve cavity (10) of the valve body component (1). The valve body component (1) includes an end cap (13). One of the end cap (13) and the valve core component (3) includes a lower positioning part (322). The other of the end cap (13) and the valve core component (3) includes a lower positioning hole (130). The lower positioning part (322) is at least partially located in the lower positioning hole (130). The transmission component (2) includes an output frame (21) and a transmission rod (22). The valve core component (3) includes a valve core (31). The transmission rod (22) is eccentrically positioned relative to the rotation center of the valve core (31). The valve core (31) is fixedly connected to the transmission rod (22), or is limited to a single unit. The output frame (21) includes a first hole (211), and the upper end (221) of the transmission rod (22) is located in the first hole (211). Alternatively, the output frame (21) may be fixedly connected to the transmission rod (22), or be a limiting connection or an integral structure, and the valve core (31) may include a second hole (311), with the lower end (222) of the transmission rod (22) located in the second hole (311).

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