A rotary plug-in assembly and an electric meter connector

Abstract

The present invention discloses a rotary plug-in assembly and an electric meter connector, aiming to solve the problems of large space occupation, low structural strength, and difficult maintenance of traditional electric meter connectors. By designing a detachable rotating assembly, the rotating shaft is built into the static contact piece, which effectively saves space and provides the possibility for additional assembly. At the same time, multiple rotating shaft support points and reinforcing rib structures significantly enhance the strength and reliability of the connector. The detachable design of the rotating shaft makes maintenance easier, reduces costs and power outage time. The optimized rotating assembly and static contact piece design achieve smaller operating force and larger rotation angle, improving the safety and efficiency of operation. In addition, by setting the plug-in piece to prevent wear, the plug-in effect of the electric meter and the stability of the conductive performance are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a rotary connector assembly and an electric meter connector. Background Art

[0002] In the power system, the meter connector is a key component that connects the power measurement equipment with the power supply line. Its performance and reliability are directly related to the stable operation and power safety of the power system. Traditional meter connectors usually adopt a rotating shaft structure with protrusions on both sides, which realizes the rotation of the power off and on operation by rotating with the housing. However, this structure has many shortcomings:

[0003] In the power system, the meter connector is a key component that connects the power measurement equipment to the power supply line. Its performance and reliability are directly related to the stable operation and power safety of the power system. Traditional meter connectors usually use upper and lower plug-in and pull-out meters, and the lines are directly connected to the copper terminals. The space limitation during the meter replacement process makes the meter replacement operation cumbersome, and the conductive part of the copper terminal leaks after the meter is removed. However, this structure has many shortcomings.

[0004] The structure of traditional connectors cannot meet the growing demand for integration and intelligence in modern power systems. In order to achieve fast, convenient and safe replacement of electric energy meters and reduce maintenance costs and power outage time, a rotary connector assembly and a meter connector structure solve all the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above problems, the present invention proposes a rotary connector assembly and an electric meter connector, which aims to solve the problems of low safety and complicated meter replacement procedures in the prior art, and the problem that conventional connectors are easily damaged due to long-term use or external force when plugged in and out, thus affecting the stable operation of the power system.

[0007] (II) Technical solution

[0008] A rotary connector assembly of the present invention comprises:

[0009] At least two stationary contacts, with limiting arms for clamping the connecting column to realize circuit conduction, and the stationary contacts are detachably provided with a rotating assembly;

[0010] A connecting column, used to connect the power measuring device, one end of which is rotatably connected to the rotating assembly, and the circuit is turned on and off by rotating with one end of the rotating assembly as a fulcrum;

[0011] A conductive terminal is arranged at the lower part of the static contact piece;

[0012] The rotating assembly is located between the conductive terminal and the limiting arm. A rotating shaft is provided on the rotating assembly. The connecting column includes a connecting portion matched with the rotating shaft and a connecting body matched with the limiting arm.

[0013] In the present invention, a movable top column is provided in the connecting column, the bottom of the top column abuts against the rotating assembly, and the top column can move along the side surface of the rotating assembly as the connecting column rotates;

[0014] The upper part of the connecting column is provided with a plug-in part, and the plug-in part includes a plurality of heads that can be opened outwards. The top column can move upward to open the heads, so as to increase the connection strength of the plug-in part.

[0015] In the present invention, the rotating assembly includes a rotating body and an insert, the insert is used to abut against the top column to prevent the top column from wearing the rotating body, the rotating body and the ends of the insert are provided with grooves, when one end of the top column is located in the groove, the top column moves downward, and the head is reset inward;

[0016] A spherical portion is provided at the bottom of the top column, and the spherical portion is tangent to the side surface of the inserting piece. A limiting seat is provided at the bottom of the rotating body for abutting and limiting the static contact piece.

[0017] In the present invention, the rotating shaft passes through the rotating body and is inserted into the insert piece by interference fit, and both ends of the rotating shaft are extended to both sides of the rotating body.

[0018] In the present invention, the rotating shaft and the rotating body are an integrated structure, and the rotating shaft is respectively arranged on both sides of the rotating body, and the rotating shafts are all on the same horizontal line.

[0019] In the present invention, an arc-shaped transition surface is provided at one end of the insert, and the arc-shaped transition surface has an end point a, and the end point a is located at the top surface of the insert;

[0020] The groove is located at the front end of the insert, and the groove has a limiting portion for accommodating the spherical portion. The distance between the lowest point of the groove and the center point of the shaft is y, and the distance between the center point of the shaft and the end point a is x, wherein x>y.

[0021] In the present invention, the rotating assembly and the stationary contact piece are arranged perpendicular to each other, and the hardness of the insert piece is greater than or equal to the hardness of the top column.

[0022] In the present invention, a housing is further included for accommodating the connecting column, a short-circuit structure is further provided on the housing, the short-circuit structure includes at least one conductive block, and a slot is provided on the housing for accommodating the conductive block;

[0023] The conductive block is arranged in the slot, and after the connecting column is separated from the limiting arm, the conductive block abuts against two adjacent static contact pieces to form a short circuit.

[0024] The present invention further includes an indicating assembly, which includes a light emitting member and an indicating member, and one end of the indicating member is located on the action path of the housing;

[0025] The number of the light-emitting elements is at least two, and one of the light-emitting elements is used to cooperate with the indicator element to display the connection status of the connecting column and the stationary contact piece.

[0026] Another electric meter connector of the present invention comprises a connector housing and the rotary connector assembly described in the above technical solution, wherein one end of the housing has a positioning block, and the connector housing is provided with a positioning groove matched with the positioning block;

[0027] The bottom of the positioning block is provided with reinforcing ribs for increasing the structural strength.

[0028] In the present invention, a positioning spring piece is also included, which is detachably arranged on the upper part of the connector housing and is used to assist in installing the power metering device. The positioning spring piece includes a limit foot and a first arc-shaped abutting section and a second arc-shaped abutting section protruding outwards;

[0029] The connector housing is provided with a mounting groove for connecting the positioning spring sheet.

[0030] In the present invention, a dust cover is also included, the dust cover includes at least two end caps and a connecting belt for connecting the end caps, protrusions are also provided on both sides of the dust cover, and the connector housing is provided with a limiting groove for matching the protrusions to connect the dust cover;

[0031] The number of the end caps corresponds to the number of the connecting columns.

[0032] (III) Beneficial effects

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] (1) The present invention designs a rotatable component, and the copper contact rotates 90 degrees to separate from the limiting wall and form 180 degrees with the static contact. After the meter is removed, the copper contact is exposed to the outside and becomes de-energized. This improves the safety of preventing electric shock caused by misoperation of the connector during meter replacement.

[0035] (2) The present invention adopts a rotating plug-in assembly, which can realize opening and closing of the switch by rotating 90 degrees, thereby greatly increasing the space for disassembling the meter. In addition, the cooperation between the rotating assembly and the top column further increases the convenience of taking or installing the meter, making it more reliable.

[0036] (3) In the present invention, the insert is in direct contact with the top column. The insert can be made of metal or wear-resistant material to prevent the bottom of the top column from directly contacting the rotating body and thus wearing the rotating body. On this basis, the rotating body can be made of lightweight insulating materials such as plastic, so that the overall economic benefits are higher.

[0037] (4) The dust cover is not easy to fall off when fixed on the connector and can be used at any time. The secondary use rate of the dust cover of conventional connectors is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a three-dimensional structural schematic diagram of the connector assembly;

[0040] Figure 2 It is a schematic diagram of the three-dimensional structure of the connector assembly (housing is omitted);

[0041] Figure 3 It is a schematic diagram of the three-dimensional structure of the connector (conduction state);

[0042] Figure 4 It is a three-dimensional structural diagram of the connector (disconnected state);

[0043] Figure 5 It is a schematic diagram of the connection structure between the stationary contact piece and the rotating component;

[0044] Figure 6 It is a schematic diagram of the exploded structure of the rotating component;

[0045] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotating assembly and the connecting column;

[0046] Figure 8 for Figure 7 Schematic diagram of the local square structure of the local A in the middle;

[0047] Fig. 9 It is a rear view stereoscopic structural schematic diagram of the connector assembly;

[0048] Fig.10 is a schematic diagram of the connection structure between the conductive block and the housing;

[0049] Fig.11 A schematic diagram of the three-dimensional structure of the indicating component;

[0050] Fig.12 It is a schematic diagram of the three-dimensional structure of the connector with a dust cap and a positioning spring;

[0051] Fig.13 It is a schematic diagram of the three-dimensional structure of the connector housing;

[0052] Fig.14 for Fig.13 A schematic diagram of the structure at the middle part B;

[0053] Fig.15 It is a schematic diagram of the three-dimensional structure of the positioning spring;

[0054] Fig.16 Schematic diagram of the three-dimensional structure of the connector housing in Example 4 Figure 1 ;

[0055] Fig.17 Schematic diagram of the three-dimensional structure of the connector housing in Example 4 Figure 2 .

[0056] 1. connector housing, 11. positioning groove, 12. boss, 13. limiting groove, 14. mounting groove, 141. main groove body, 142. first side groove, 143. second side groove;

[0057] 2. Connector assembly, 21. Conductive mechanism, 211. Stationary contact piece, 2111. Limiting arm, 2112. Jack, 212. Conductive terminal, 213. Indicator assembly, 2131. Circuit board, 2132. Indicator, 2133. Light-emitting element, 22. Rotating mechanism, 221. Connecting column, 2211. Connecting part, 22111. Head, 2212. Connecting part, 2213. Connector, 2214. Top column , 22141, spherical portion, 222, housing, 2221, slot, 2222, positioning block, 2223, reinforcing rib, 2224, bayonet, 223, rotating assembly, 2231, rotating body, 22311, limiting seat, 22312, groove, 22313, arc-shaped transition surface, 22315, limiting portion, 2232, insert, 2233, rotating shaft, 224, short-circuit structure, 2241, conductive block;

[0058] 3. dust cover, 31. end cap, 32. connecting belt, 33. protrusion, 34. buckle, 35. positioning member, 351. first lasso part, 352. second lasso part, 353. connecting body;

[0059] 4. Positioning spring sheet, 41. Limiting foot, 42. Elastic clamping portion, 421. Connecting piece, 422. First limiting side edge, 423. Second limiting side edge, 424. Third limiting side edge, 425. Fourth limiting side edge, 426. First arc-shaped abutting section, 427. Second arc-shaped abutting section. DETAILED DESCRIPTION

[0060] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0061] like Figure 1-Figure 4 The rotary plug-in assembly and the electric meter connector shown are intended to solve the problem that the conventional electric meter connector plug-in module is provided with protruding shafts on both sides, and the power is cut off by rotation through the housing 222 that can rotate with the protrusions. This structure occupies more space on both sides of the contact group, which is not conducive to the additional installation of the indicating assembly 213, and there are only two protruding shafts as rotation support points, the structural strength is low, and it cannot be replaced after being broken.

[0062] Specifically, the electric meter connector of the present invention includes a connector housing 1 and a connector assembly 2, and the connector assembly 2 is mainly composed of a rotating mechanism 22 and a conductive mechanism 21. The connector assembly 2 can realize power-off and power-on operations by rotating the rotating mechanism 22. In particular, the conductive mechanism 21 includes four stationary contacts 211, i.e., conductive bars, and conductive terminals 212, and the rotating mechanism 22 is composed of four connecting columns 221 that match the stationary contacts 211 and a housing 222 that accommodates the connecting columns 221. That is, the stationary contacts 211 and the connecting columns 221 correspond to each other one by one, and one connecting column 221 is used to match one stationary contact 211. The connecting column 221 is used to plug and connect power measuring equipment, such as an electric energy meter, a voltmeter, a power factor meter, etc.

[0063] Furthermore, a positioning block 2222 is also provided on the housing 222, and a positioning groove 11 cooperating with the positioning block 2222 is provided on the connector housing 1, and the two form a mutually engaged buckle 34 relationship. In this embodiment, the number of the positioning blocks 2222 is two, and they are respectively arranged at the two ends of the top of the housing 222, and the number and position of the positioning grooves 11 correspond to the positioning blocks 2222. When the rotating mechanism 22 is closed and in the on state, the positioning block 2222 is connected to the positioning groove 11 to form a limiting structure. In particular, in order to increase the mechanical strength of the positioning block 2222, a reinforcing rib 2223 is also provided at the bottom of the positioning block 2222.

[0064] Each static contact piece 211 is independently provided with a conductive terminal 212 at the bottom thereof, which is used to connect the wire or connector of the external circuit. The conductive terminal 212 is common knowledge known to those skilled in the art, and will not be described in detail here. The left and right sides of the upper part of the static contact piece 211 are provided with a limit arm 2111 extending to the same side. The limit arm 2111 and the static contact piece 211 are an integrated structure. The two limit arms 2111 are used to clamp the connecting column 221 to achieve circuit conduction. If power off is required, the connecting column 221 can be separated from the clamping arm.

[0065] Reference Figure 5-Figure 6 In order to design a replaceable rotating shaft 2233 under the premise of saving space and increasing the rotation strength, the connector assembly 2 of the present invention can also be detachably provided with a rotating assembly 223 on the stationary contact piece 211, and one end of the connecting column 221 is rotatably connected to the rotating assembly 223. That is, the connecting column 221 can be rotated by using one end connected to the rotating assembly 223 as a fulcrum, thereby realizing connection and separation with the limiting arm 2111, and then realizing circuit breaking or conduction.

[0066] Specifically, the rotating assembly 223 is located between the limiting arm 2111 and the conductive terminal 212. A rectangular insertion hole 2112 is provided in the middle of the stationary contact piece 211, and the rotating assembly 223 passes through the insertion hole 2112 and is inserted into the insertion hole 2112 by vertical interference fit. The rotating assembly 223 includes a rotating body 2231, an inserting piece 2232, and a rotating shaft 2233 inserted into the rotating body 2231. A limiting seat 22311 is provided at the bottom of the rotating body 2231, and a rotating shaft 2233 hole is provided at the upper part of the rotating assembly 223 to facilitate the insertion of the rotating shaft 2233 into the rotating body 2231. That is, in this embodiment, the rotating shaft 2233 can be detachably inserted into the rotating body 2231. The upper part of the rotating body 2231 described in this embodiment is Figure 5 The front part of the middle rotating body 2231 will be described in detail below according to the directions in the figure. It is not a reference to the actual position of the feature. Its position is related to the placement angle of the components and is again not limited.

[0067] In this embodiment, the rotating shaft 2233 is arranged on the rotating body 2231 by means of a latch, so that the rotating shaft 2233 can be replaced in time after it breaks and is used to limit the insert 2232 to prevent it from moving outward. However, in order to meet certain lightweight design requirements and improve economic benefits, the rotating shaft 2233 can also be an integrated structure with the rotating body 2231.

[0068] Reference Figure 7-Figure 8A top column 2214 is movably arranged in the connecting column 221. When the rotating component 223 is inserted into the static contact piece 211, the bottom of the top column 2214 abuts against the top of the front end of the rotating body 2231, and the top column 2214 and the side of the rotating body 2231 are arranged perpendicular to each other. At this time, the connector as a whole is in a conducting state. As the rotating component 223 rotates, the bottom of the top column 2214 slides along the outer side of the rotating body 2231. In particular, a groove 22312 is also arranged at the front end of the rotating body 2231 and the plug 2232. An arc-shaped transition surface 22313 is arranged between the groove 22312 and the side of the rotating body 2231 and the plug 2232, which can provide assistance for the rotation of the rotating component 223. The arc-shaped transition surface 22313 includes an end point a and an end point b. When the top post 2214 is located between the end point a and the side of the rotating body 2231, the connector is in the conducting state. When the top post 2214 is located between the end point a and the end point b, the rotating assembly 223 is in the ready-to-be-separated state, and the angle between the rotating assembly 223 and the connector housing 1 is between 90° and 60°. When the top post 2214 is located in the groove 22312, the connector is in the disconnected state.

[0069] Specifically, the groove 22312 includes a limit portion 22315, which is the lowest point of the groove 22312. When the top column 2214 is located at the limit portion 22315 of the groove 22312, the connector is in a disconnected state. The groove 22312 is a V-shaped structure as a whole. The front end shape of the plug 2232 is similar to the front end shape of the rotating body 2231. When the plug 2232 is inserted into the rotating body 2231, its end face is in the same horizontal plane as the end face of the rotating body 2231.

[0070] The bottom surface of the top column 2214 is provided with a spherical portion 22141, the bottom surface of the spherical portion 22141 abuts against the side surface of the plug 2232, and the movable range of the top column 2214 is on the side surface of the plug 2232, that is, no matter the rotating assembly 223 is in the on state or the off state, it abuts against the side surface of the plug 2232, that is, the side surface of the plug 2232 is tangent to the spherical portion 22141. The plug 2232 is provided to prevent the top column 2214 from directly contacting with the rotating body 2231, thereby wearing its surface and causing errors in the movement of the top column 2214, thereby affecting the plug-in effect of the electric meter. In particular, in this embodiment, the material of the plug 2232 is metal, such as copper, iron, aluminum or metal alloy, that is, the hardness of the plug 2232 should be greater than or equal to the hardness of the top column 2214, so as to prevent the two from directly wearing the side surface of the plug 2232 after contact.

[0071] Furthermore, the connecting column includes a connecting portion 2212 that cooperates with the rotating assembly 223, a connecting body 2213 that cooperates with the limiting arm 2111, and a plug-in portion 2211 for plugging with the electric meter. In this embodiment, the connecting portion 2212 is arranged below the connecting body 2213, and the plug-in portion 2211 is arranged above the connecting body 2213.

[0072] The plug-in part 2211 is composed of a head 22111 with four petals that can be opened outwards. In particular, the distance between the center point of the rotating shaft 2233 and the top of the side of the plug 2232 is x, and the distance between the center point of the rotating shaft 2233 and the lowest point of the groove 22312, i.e., the lowest point of the limiting part 22315, is y. In this solution, in order to realize that when the connector is in the conducting state, the top column 2214 moves upward and opens the head 22111 outwards; when the connector is in the disconnected state, the top column 2214 moves downward to reset the head 22111, that is, in order to facilitate the removal or fixing of the electric meter, the length of y is less than the length of x. In this embodiment, the length of x is set to 1.6y. Example

[0073] Reference Figure 9-10 As shown, on the basis of Example 1, the rotating mechanism 22 also includes a short-circuit structure 224, which is mainly composed of two conductive blocks 2241. A slot 2221 for clamping the conductive block 2241 is provided on the shell 222 of the rotating mechanism 22. The conductive block 2241 is clamped in the slot 2221. When the rotating mechanism 22 is in the on state, the conductive block 2241 and the limiting arm 2111 do not contact each other; when the rotating mechanism 22 moves to the off state, the conductive block 2241 rotates together with the shell 222. After the rotating mechanism 22 is in the off state, the conductive block 2241 abuts against two adjacent static contact pieces 211, that is, short-circuiting two adjacent static contact pieces 211.

[0074] Specifically, when the connector is in the conducting state, the conductive block 2241 is located behind the static contact piece 211, and a conductive block 2241 is provided between two groups of static contact pieces 211. In the first embodiment, there are four static contact pieces 211, while in the present embodiment, there are two conductive blocks 2241, that is, the conductive block 2241 is used to short-circuit two adjacent static contact pieces 211, thereby achieving short-circuit between the two adjacent static contact pieces 211 and non-stop power switching of the meter.

[0075] In order to implement the above solution, the spacing between two adjacent static contact pieces 211 should be smaller than the width of the conductive block 2241. In this embodiment, the conductive block 2241 is a concave-shaped structure, and is interference-fitted with the slot 2221. The conductive block 2241 includes a first conductive arm and a second conductive arm, and the first conductive arm and the second conductive arm are respectively in contact with the static contact pieces 211 on the left and right sides.

[0076] In particular, after the conductive block 2241 is inserted into the slot 2221 , it can be further reinforced by bolts. Example

[0077] like Fig.11 As shown, on the basis of Example 1 or Example 2, the connector assembly 2 in this embodiment further includes an indication assembly 213, that is, the technical solution in this embodiment can be implemented in combination with the technical solution in Example 1 or the technical solution in Example 2. The indication assembly 213 mainly includes a circuit board 2131, a micro switch, two light-emitting components 2133, and a plurality of electronic components constituting an indication circuit, such as a resistor, a capacitor, a reactor, etc. In this embodiment, the light-emitting component 2133 adopts two light-emitting diodes of different colors. In addition, any device that can emit different colors can be used, such as LED lamps of different colors, matrix lamps, SMD lamps, etc.

[0078] Specifically, the micro switch is an indicator 2132, and the indicator assembly 213 is arranged in the connector housing 1, one end of which extends outward from the connector housing 1 and is arranged on the moving path of the rotating mechanism 22. When the rotating mechanism 22 is in the on position, it contacts the micro switch, and when it is in the off state, it separates from the micro switch. One of the two light-emitting members 2133 is used to cooperate with the micro switch to indicate the state of the rotating mechanism 22, and the other is used to display whether the circuit is energized. Example

[0079] Reference Fig.12 , Fig.13 , Fig.16 , Fig.17 On the basis of one or more combinations of the three schemes in Embodiment 1, Embodiment 2 or Embodiment 3, the connector further includes a dust cover 3. In particular, the connector housing 1 further includes a limiting groove 13 for receiving the card-mounted dust cover 3. The dust cover 3 includes four end caps 31 and a connecting belt 32 connecting the four end caps 31. In this embodiment, the connecting belt 32 and the end caps 31 are an integrated structure. The left and right ends of the dust cover 3 are further provided with protrusions 33 that cooperate with the limiting grooves 13, that is, the outer sides of the leftmost end cap 31 and the rightmost end cap 31 are both provided with protrusions 33.

[0080] The limiting groove 13 is a U-shaped groove with an opening facing forward, but is not limited to a U-shaped groove, that is, as long as there is a limiting structure at one end of the groove body to prevent the protrusion from sliding out from the other end, a stopper 36 can be set at the other end of the opening to prevent the protrusion from sliding out.

[0081] The limiting groove 13 is arranged on the upper part of the connector housing 1. The dust cover 3 is fixed by being clamped in the limiting groove 13, that is, when the dust cover 3 is not needed, the dust cover 3 can be clamped in the limiting groove 13 for storage or transportation to prevent loss.

[0082] The buckle 34 of the L-shaped structure in the middle of the dust cover 3 is specifically arranged on the connecting belt 32 in the middle of the dust cover 3. In order to facilitate the installation and limiting, a bayonet 2224 cooperating with the buckle 34 is also arranged on the housing 222 of the rotating mechanism 22. When the dust cover 3 is installed on the head 22111 of the connecting column 221, the buckle 34 is clamped in the bayonet 2224 for auxiliary positioning.

[0083] Specifically, the connector housing 1 is further provided with a boss 12 on the same side wall as the limiting groove 13, and a positioning member 35 is sleeved on the boss 12 to further enhance the installation effect of the dust cover 3. The positioning member 35 has a first lasso portion 351 at one end and a second lasso portion 352 at the other end, and a connecting body 353 for connecting the first lasso portion 351 and the second lasso portion 352 is provided in the middle.

[0084] The first lasso part 351 is sleeved on the protrusion 33, and the second lasso part 352 is sleeved on the protrusion 12. In particular, when the first lasso part 351 is not sleeved on the protrusion 33, the positioning member 35 can rotate with the protrusion 12 as a fulcrum through the connection relationship between the second lasso part 352 and the protrusion 12. That is, the positioning member 35 is used not only to increase the connection strength of the dust cover 3, but also to prevent the dust cover 3 from being still on the connector after being separated from the limiting groove 13 due to external force, so as not to be lost. Example

[0085] Reference Figure 13-Figure 15 Based on one or more combinations of the four schemes of Example 1 or Example 2 or Example 3 or Example 4, a positioning spring piece 4 is further provided on the upper part of the connector housing 1. In particular, a mounting groove 14 for mounting the positioning spring piece 4 is also provided on the connector housing 1.

[0086] Specifically, the mounting groove 14 includes a main groove body 141 and a first side groove 142 and a second side groove 143 disposed on the left and right sides of the main groove body 141. In this embodiment, the first side groove 142 and the second side groove 143 are located on the left and right sides of the main groove, but in fact, as long as the first side groove 142 and the second side groove 143 are respectively located on the two sides of the main groove, that is, the first side groove 142 and the second main groove can also be disposed on the upper and lower sides, the two diagonal sides, etc. of the main groove.

[0087] The main function of the first side groove 142 and the second side groove 143 is to clamp the positioning spring piece 4, which includes a limiting foot 41 and an elastic clamping part 42. The limiting foot 41 is arranged at both ends of the elastic clamping part 42 to cooperate with the first side groove 142 and the second side groove 143 to limit the elastic clamping part 42.

[0088] Furthermore, the first side groove 142 and the second side groove 143 are interconnected with the main groove, and the elastic clamping portion 42 and the limiting foot 41 are an integrated structure, that is, the positioning spring sheet 4 is formed by bending a metal sheet in one piece.

[0089] Specifically, the elastic clamping portion 42 further includes a connecting piece 421 and a first limiting side edge 422, a second limiting side edge 423, a third limiting side edge 424 and a fourth limiting side edge 425. The first limiting side edge 422, the second limiting side edge 423, the third limiting side edge 424 and the fourth limiting side edge 425 are distributed in a diamond structure, and the first limiting side edge 422, the second limiting side edge 423, the third limiting side edge 424 and the fourth limiting side edge 425 are sequentially connected end to end.

[0090] In particular, the angle between the extension lines of the first limiting side 422 and the fourth limiting side 425 is an acute angle, and the angle between the extension lines of the second limiting side 423 and the third limiting side 424 is an obtuse angle. The first limiting side 422 and the second limiting side 423 are connected to form a first arc-shaped abutting section 426, and the third limiting side 424 and the fourth limiting side 425 form a second arc-shaped abutting section 427, that is, when the elastic clamping portion 42 is clamped into the slot body on the back of the electric meter, the first arc-shaped abutting section 426 and the second arc-shaped abutting section 427 are abutted against the two sides of the slot body to form an outward horizontal pressure, thereby assisting in positioning the electric meter.

[0091] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A rotary connector assembly, characterized in that: The connector assembly comprises: At least two stationary contacts, with limiting arms for clamping the connecting column to realize circuit conduction, and the stationary contacts are detachably provided with a rotating assembly; A connecting column, used to connect the power measuring device, one end of which is rotatably connected to the rotating assembly, and the circuit is turned on and off by rotating with one end of the rotating assembly as a fulcrum; A conductive terminal is arranged at the lower part of the static contact piece; The rotating assembly is located between the conductive terminal and the limiting arm, the rotating assembly is provided with a rotating shaft, and the connecting column includes a connecting portion matched with the rotating shaft and a connecting body matched with the limiting arm; A movable top column is provided in the connecting column, the bottom of the top column abuts against the rotating assembly, and the top column can move along the side surface of the rotating assembly as the connecting column rotates; The upper part of the connecting column is provided with a plug-in part, and the plug-in part includes a plurality of heads that can be opened outwards. The top column moves upward to open the heads, so as to increase the connection strength of the plug-in part; The rotating assembly includes a rotating body and an insert, wherein the insert is used to abut against the top column to prevent the top column from wearing the rotating body, and grooves are provided at the ends of the rotating body and the insert. When one end of the top column is located in the groove, the top column moves downward and the head is reset inward. A spherical portion is provided at the bottom of the top column, and the spherical portion is tangent to the side surface of the inserting piece. A limiting seat is provided at the bottom of the rotating body, which is used for abutting and limiting the static contact piece.

2. The rotary connector assembly according to claim 1, characterized in that: The rotating shaft passes through the rotating body and is interference-fitted with the inserting piece, and both ends of the rotating shaft are extended to both sides of the rotating body.

3. The rotary connector assembly according to claim 2, characterized in that: The rotating shaft and the rotating body are an integrated structure, and the rotating shafts are respectively arranged on both sides of the rotating body, and the rotating shafts are all on the same horizontal line.

4. The rotary connector assembly according to claim 2 or 3, characterized in that: An arc-shaped transition surface is provided at one end of the insert, and the arc-shaped transition surface has an end point a, and the end point a is located on the top surface of the insert; The groove is located at the front end of the insert, and the groove has a limiting portion for accommodating the spherical portion. The distance between the lowest point of the groove and the center point of the shaft is y, and the distance between the center point of the shaft and the end point a is x, wherein x>y.

5. The rotary connector assembly according to claim 4, characterized in that: The rotating assembly and the stationary contact piece are arranged perpendicular to each other, and the hardness of the insert piece is greater than or equal to the hardness of the top column.

6. The rotary connector assembly according to claim 5, characterized in that: It also includes a housing for accommodating the connecting column, the housing is also provided with a short-circuit structure, the short-circuit structure includes at least one conductive block, and the housing is provided with a slot for accommodating the conductive block; The conductive block is arranged in the slot, and after the connecting column is separated from the limiting arm, the conductive block abuts against two adjacent static contact pieces to form a short circuit.

7. The rotary connector assembly according to claim 6, characterized in that: It also includes an indicator assembly, the indicator assembly includes a light-emitting member and an indicator member, and one end of the indicator member is located on the action path of the housing; The number of the light-emitting elements is at least two, and one of the light-emitting elements is used to cooperate with the indicator element to display the connection status of the connecting column and the stationary contact piece.

8. An electric meter connector, characterized in that: The electric meter connector comprises a connector housing and the rotary connector assembly according to claim 6 or 7, one end of the housing has a positioning block, and the connector housing is provided with a positioning groove that cooperates with the positioning block; The bottom of the positioning block is provided with reinforcing ribs for increasing the structural strength.

9. The electric meter connector according to claim 8, characterized in that: It also includes a positioning spring sheet, which is detachably arranged on the upper part of the connector housing and is used to assist in installing the power metering device. The positioning spring sheet includes a limiting foot and a first arc-shaped abutting section and a second arc-shaped abutting section protruding outwards; The connector housing is provided with a mounting groove for connecting the positioning spring sheet.

10. The electric meter connector according to claim 9, characterized in that: It also includes a dust cover, the dust cover includes at least two end caps and a connecting belt for connecting the end caps, the two sides of the dust cover are also provided with protrusions, and the connector housing is provided with a limiting groove for matching the protrusions to connect the dust cover; The number of the end caps corresponds to the number of the connecting columns.

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