CN111342257A - Connection terminals, terminal supports, and resolvers for resolvers - Google Patents

Abstract

The invention discloses a connecting terminal for a rotary transformer, a terminal supporting seat and the rotary transformer. A connection terminal for a rotary transformer, comprising: a terminal body extending in an axial direction; the first connecting part continuously extends from the terminal body; the first connecting part comprises a connecting surface for contacting and connecting a first connecting piece; the second connecting part continuously extends from the terminal body and is used for connecting a second connecting piece; at least part of the connecting surface is arranged axially upwards. Compared with the prior art, the connecting terminal can be assembled with the terminal supporting seat into a whole. The overall structure of the connecting terminal is simplified, and corresponding electric connection is realized through the first connecting part and the second connecting part. Preferably, the first connection portion and the second connection portion extend in different directions, respectively, and a space can be sufficiently utilized.

Description

Connection terminals, terminal supports, and resolvers for resolvers

technical field

The invention relates to an electrical connection structure, in particular to a connection terminal for a rotary transformer, a terminal support base, and a rotary transformer.

Background technique

A resolver/transformer is an electromagnetic sensor, also known as a synchronous resolver. A resolver is a small AC motor used for angle measurement. It is used to measure the angular displacement and angular velocity of a rotating object. It consists of a stator and a rotor. Among them, the stator winding is used as the primary side of the transformer to receive the excitation voltage. The rotor winding acts as the secondary side of the transformer, and the induced voltage is obtained through electromagnetic coupling. How to make the corresponding electrical connection layout of the resolver reasonable becomes a problem that needs to be considered.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to overcome the deficiencies in the prior art, and to provide a connection terminal, a terminal support base and a resolver for a resolver that are convenient for electrical connection and have a reasonable spatial layout.

To achieve the above object, the present invention is achieved through the following technical solutions:

A connection terminal for a resolver, characterized in that it includes:

a terminal body, the terminal body extending in the axial direction;

a first connecting portion, the first connecting portion extending continuously from the terminal body; the first connecting portion includes a connecting surface for contacting and connecting the first connecting piece; and

a second connecting part, the second connecting part is continuously extended from the terminal body and is used for connecting the second connecting piece;

At least part of the connecting surface is arranged axially upwards.

According to an embodiment of the present invention, the terminal body can be axially mounted to the terminal support base;

The first connection portion is arranged along the longitudinal extension of the connection terminal;

The second connection portion extends along the axial direction of the connection terminal.

According to an embodiment of the present invention, a support portion is provided continuously extending from the terminal body;

The first connecting portion is continuously extended from the supporting portion.

According to an embodiment of the present invention, at least part of the first connecting portion is laterally protruded relative to the support portion, and forms a gap with the support portion.

According to an embodiment of the present invention, the connecting surface of the first connecting portion has an upper arch;

The upper arch surface is protruded in the opposite direction of the installation direction of the connecting terminal, and is used for contacting and electrically connecting with the first connecting piece.

According to an embodiment of the present invention, the second connecting portion includes a pair of claws;

The pair of clamping claws enclose a clamping slot;

When the second connecting piece is accommodated in the engaging groove, the pair of clamping claws are used for snap-fitting with the second connecting piece.

According to an embodiment of the present invention, it also includes:

The mounting feet are arranged on the terminal body and extend continuously from the mounting direction of the connection terminal.

According to an embodiment of the present invention, the terminal body is formed with a top end and a bottom end in an axial direction;

the mounting feet are arranged on the bottom end of the terminal body;

The second connecting portion is axially protruded on the top end.

According to an embodiment of the present invention, the connection terminal is a single piece.

According to an embodiment of the present invention, the connection terminal is made of a whole plate with uniform thickness.

According to an embodiment of the present invention, some or all of the first connecting parts are arranged at a longitudinal interval with respect to the second connecting parts.

According to an embodiment of the present invention, part or all of the first connecting portion and the second connecting portion are respectively disposed at both longitudinal ends of the connecting terminal.

According to an embodiment of the present invention, some or all of the first connection parts and the second connection parts are arranged staggered in the lateral direction of the connection terminal.

A terminal support base for a resolver, used for installing and supporting connection terminals, characterized in that the terminal support base comprises:

seat body;

The seat body is provided with a support portion, and the support portion is used to install a terminal body supporting the connection terminal.

According to an embodiment of the present invention, the seat body is provided with an escape portion, and the escape portion is used to provide a space for the first connection portion of the connection terminal to be connected and matched with the first connection member.

According to an embodiment of the present invention, the terminal support base can be assembled with the connection terminal in the axial direction;

At least a portion of the escape portion is laterally spaced relative to the support portion.

According to an embodiment of the present invention,

the support portion includes a mounting hole;

When the mounting feet of the connecting terminal are accommodated in the mounting holes, the hole walls of the mounting holes and the mounting feet can be arranged in contact with each other.

According to an embodiment of the present invention, a plurality of the escape holes are arranged in a row along the lateral direction of the terminal support seat;

The adjacent escape holes are arranged in communication with each other.

According to an embodiment of the present invention, the seat body has a peripheral wall;

The seat body is provided with a holding groove for accommodating and supporting the first connecting piece;

The retaining groove extends through the outer peripheral wall for receiving and supporting the first connector.

According to an embodiment of the present invention, the seat body is provided with an axially extending guide hole for the first connecting piece to pass therethrough.

According to an embodiment of the present invention, the retaining groove is radially aligned with the guide hole.

According to an embodiment of the present invention, it also includes:

The guide hole is disposed closer to the inner side in the radial direction of the terminal support body than the escaping portion.

According to an embodiment of the present invention, the terminal support base can be assembled with the connection terminal in the axial direction;

The guide hole is arranged opposite to the escape portion along the longitudinal direction of the terminal support seat.

According to an embodiment of the present invention, the support portion is used for mounting and supporting the connection terminal.

A resolver, characterized in that, comprising:

a terminal support base, the terminal support base is annular; the terminal support base is provided with a plurality of coil holding parts;

a plurality of the connection terminals, the terminal bodies of the plurality of connection terminals are respectively fixed on the support parts of the terminal support seat;

a plurality of coils, the coils are wound on the terminal holding part; the connection ends of each of the coils are respectively electrically connected to the preset connection terminals; and

A plurality of first connectors, the plurality of first connectors respectively have electrical connection ends, and the plurality of electrical connection ends are respectively electrically connected to the first connection parts on the plurality of connection terminals.

According to an embodiment of the present invention, along the radial direction of the terminal support base, the first connection portion of the connection terminal is disposed close to the outer side.

According to an embodiment of the present invention, the longitudinal direction of the connection terminal is arranged along the radial direction of the terminal support base.

According to an embodiment of the present invention, the terminal body is formed with two ends in the longitudinal direction;

One end of the terminal body is provided with a limiting portion;

the first connection part is arranged at the other end of the terminal body;

The limiting portion is inclined and extended downward from one end of the connecting terminal to the other end;

The seat body is provided with a blocking part;

The blocking portion can be longitudinally blocked and matched with the limiting portion.

According to an embodiment of the present invention, the seat body is provided with a guide hole;

the first connector extends through the guide hole and is disposed;

The guide hole is disposed closer to the inner side in the radial direction of the terminal support seat than the escaping portion.

According to an embodiment of the present invention, it also includes:

The guide holes are arranged between the terminal bodies corresponding to two adjacent connection terminals.

According to an embodiment of the present invention, it also includes:

crimp;

The crimping piece and the electrical connection end of the first connecting piece are crimped to each other and connected into one body;

The crimping member is electrically connected to the first connection portion.

According to an embodiment of the present invention, the crimping member is bent relative to the first connecting member.

According to an embodiment of the present invention, the crimping member is arranged along the radial direction of the terminal support seat.

According to one embodiment of the present invention, the crimping member forms a sleeve, the sleeve has a tube wall; the tube wall encloses a lumen;

The pipe wall is electrically connected to the first connection portion by welding;

The electrical connection end of the first connector extends into the lumen and is in electrical contact with the tube wall.

According to an embodiment of the present invention, it also includes:

an end cap, the end cap is detachably mounted on the bracket;

The end cover includes a terminal cover, and the terminal cover is covered with the terminal support base to enclose the connection terminal therein.

According to an embodiment of the present invention, it also includes:

The sealant covers the electrical connection portion where the connection terminal is provided with the connection end of the coil and the electrical connection end of the first connection piece.

Compared with the prior art, the connection terminal of the present invention can be paired and assembled with the terminal support base. The overall structure of the connection terminal is simplified, and the corresponding electrical connection is achieved through the first connection portion and the second connection portion. Preferably, the first connecting portion and the second connecting portion extend in different directions respectively, so that the space can be fully utilized. Further, the first connection portion is laterally protruded relative to the second connection, which facilitates connection and makes full use of space, so that the overall structure is compact and can meet strict size requirements. The terminal support seat can facilitate the first connecting part to realize the mating connection of the corresponding first connecting piece by providing the abdicating part. Preferably, the cooperation between the terminal support base and the connecting terminal can facilitate the extension of the axial outlet of the first connecting piece, thereby improving the application performance.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of a connection terminal provided by the present invention.

FIG. 2 is a schematic downward projection of the connecting terminal of FIG. 1 in the axial direction.

FIG. 3 is a schematic diagram of a longitudinal outward projection of the connection terminal of FIG. 1 .

FIG. 4 is a partial perspective cross-sectional view of a terminal support base for matingly supporting the connection terminal of FIG. 1 .

FIG. 5 is a schematic downward projection of the terminal support seat of FIG. 4 in the axial direction.

FIG. 6 is a partial three-dimensional cross-sectional view of a rotary transformer provided by the present invention.

FIG. 7 is a partial enlarged schematic view at Z of the resolver of FIG. 6 .

FIG. 8 is a schematic diagram showing the axial downward projection of the resolver of FIG. 6 .

FIG. 9 is a partial enlarged schematic view of the resolver at Z2 of FIG. 8 .

FIG. 10 is a schematic diagram of a longitudinal inward projection of the resolver of FIG. 9 .

FIG. 11 is a partial enlarged schematic view of the resolver at Z3 of FIG. 10 .

Fig. 12 is a schematic diagram of the structure of a resolver.

FIG. 13 is an axial projection schematic diagram of a resolver provided by the present invention.

Detailed ways

The present invention is described in detail below in conjunction with the accompanying drawings:

Example 1:

Please refer to FIG. 1 to FIG. 3 , which are a connection terminal 101 provided by the present invention. The connecting terminal 101 includes a terminal body 10 , a first connecting portion 30 and a second connecting portion 50 . The first connecting portion 30 is disposed on the terminal body 10 and is used to electrically connect the first connecting member 402 . The second connecting portion 50 is disposed on the terminal body 10 and is used for electrically connecting a second connecting piece (not shown in the figure).

The terminal body 10 is used to support other structures of the connection terminal 101 . The specific shape and structure of the terminal body 10 only needs to be able to achieve corresponding support. In this embodiment, the terminal body 10 is substantially plate-shaped. The connection terminal 101 has an axial installation direction. Correspondingly, the terminal body 10 is axially extended. The terminal body 10 is formed with a top end and a bottom end in the axial direction.

The first connecting portion 30 is longitudinally protruded from the terminal body 10 . The first connecting portion 30 is used for electrical connection with the first connecting member 402 . In order to fully utilize the space and facilitate the electrical connection between the first connecting portion 30 and the first connecting member 402 , at least part of the first connecting portion 30 is laterally protruded from the second connecting portion 50 . Correspondingly, at least part of the first connecting portion 30 is laterally protruded relative to the terminal body 10 . Preferably, all the first connecting parts 30 are laterally protruded relative to the second connecting parts 50 . The specific shape and structure of the first connection portion 30 only need to be able to realize the corresponding electrical connection. Specifically, the first connecting portion 30 includes a connecting surface 35 for contacting and connecting the first connecting piece 402 . At least part of the connecting surface 35 is arranged axially upwards. The connecting surface 35 includes a segment of upper dome 351 .

In order to facilitate supporting the first connecting portion 30 , the terminal body 10 is provided with a supporting portion 25 . The support portion 25 is laterally protruded from the terminal body 10 . In order to make full use of the space, in this embodiment, the support portion 25 generally extends horizontally and vertically in the shape of a letter "L". The support portion 25 is used to support the first connection portion 30 . Correspondingly, the terminal body 10 is longitudinally protruded from the support portion 25 . In order to facilitate the first connection portion 30 to achieve corresponding welding connection and to make full use of the space, a part of the first connection portion 30 is laterally protruded from the support portion 25 . Correspondingly, the first connecting portion 30 and the supporting portion 25 form a gap 28 . In this embodiment, both side walls of the first connecting portion 30 protrude laterally from the supporting portion 25 and form a pair of notches 28 and 28b.

The second connecting portion 50 extends continuously from the terminal body 10 . Preferably, the second connecting portion 50 is axially protruded from the top end of the terminal body 10 . The specific shape and structure of the second connecting portion 50 only needs to be able to realize the mating connection with the corresponding second connecting piece (not shown in the figure). In this embodiment, the second connecting portion 50 includes a pair of clamping jaws 52 and 52b. The pair of clamping jaws 52 and 52b encloses an accommodating groove 54 . When the second connecting piece is accommodated in the accommodating groove 54 , the pair of clamping jaws 52 and 52b clamp the corresponding second connecting piece and are electrically connected to each other. Specifically, the pair of clamping jaws 52, 52b encloses a substantially letter "V" shape. In order to facilitate the pairing of the connecting terminal 101 with other structures, the second connecting portion 50 and the first connecting portion 30 are longitudinally spaced apart, and are respectively disposed at both longitudinal ends of the connecting terminal. Specifically, the second connecting portion 50 is longitudinally spaced from the supporting portion 25 . Some or all of the first connection portion 30 and the second connection portion 50 are arranged in a staggered transverse direction of the connection terminal, that is, the projection view along the transverse direction, the first connection portion 30 and the second connection portion 50 are perpendicular to each other along the transverse direction. And there is a cross.

In order to facilitate the connection terminal 101 to be further supported by the corresponding support shell 201 , the connection terminal 101 further includes a limiting portion 45 . The limiting portion 45 protrudes longitudinally relative to the terminal body 10 . In order to fully save space, the limiting portion 45 is provided to extend obliquely. In order to further save space, the axial top end of the limiting portion 45 is used to support the second connecting portion 50 . Correspondingly, the terminal body 10 is formed with an inner end and an outer end along the longitudinal direction. The inner end of the terminal body 10 is close to the interior of the terminal support seat 201 described below. The limiting portion 45 is inclined and extended outward from the inner end of the terminal body 10 . Correspondingly, the first connecting portion 30 is disposed at the outer end of the terminal body 10 .

In order to further facilitate the electrical connection with the third connecting piece, the connecting terminal 101 further includes a third connecting portion 70 . The third connection portion 70 extends continuously from the terminal body 10 . Specifically, the third connection portion 70 extends perpendicular to the axial direction of the connection terminal 101 . Further, in order to fully save space, at least a part of the third connecting portion 70 is laterally protruded relative to the terminal body 10 . At least part of the third connecting portion 70 is laterally protruded relative to the second connecting portion 50 . In order to facilitate the welding connection between the third connecting part 70 and the corresponding third connecting piece, the third connecting part 70 has a concave surface 75 . That is, the third connecting portion 70 forms a groove. Specifically, the recessed surface 75 extends through and extends laterally of the terminal body 10 , so that the groove is a through groove. The concave surface 75 is a part of a circular tube surface.

In order to facilitate stable installation on the following terminal support base 201 , the connecting terminal 101 further includes mounting feet 90 . The mounting feet 90 extend continuously from the terminal body 10 . Specifically, the mounting feet 90 are protruded from the axial bottom end of the terminal body 10 . The specific shape and structure of the mounting feet 90 only need to be able to achieve corresponding mounting. In this embodiment, the mounting feet 90 are used for insertion and installation. Specifically, the mounting feet 90 are generally plate-shaped. In order to further enhance the stability of the assembly of the mounting feet 90 and the terminal support base 201 , the mounting feet 90 have protruding retaining ribs 92 . Correspondingly, in order to facilitate the manufacture, the retaining ribs 92 are provided on both lateral side walls of the mounting feet 90 .

In order to improve the stability of the connection terminal 101 , the connection terminal 101 is a single piece. Specifically, the connection terminal 101 can be made of any conductive metal material. In order to further facilitate the full utilization of manufacturing materials, the connecting terminal 101 is manufactured from a whole substantially uniform plate. Accordingly, the connection terminal 101 is made by stamping. According to needs, the connection terminal 101 can be further manufactured by cutting.

Embodiment 2:

Please refer to FIG. 4 and FIG. 5 , the present invention further provides a terminal support base 201 matched with the connection terminal 101 described in the first embodiment. That is, the terminal support base 201 is used to support the connection terminal 101 .

The terminal support base 201 includes a base body 210 . The socket body 210 is used for supporting the connection terminal 101 . The seat body 210 is provided with a guide hole 230 . The guide hole 230 is used to guide the first connecting piece connected to the connecting terminal 101 . The seat body 210 is provided with an escape hole 250 . The accommodating hole 250 is used to provide a receiving space for the first connecting member to contact and electrically connect with the first connecting portion 30 of the connecting terminal 101 .

The specific shape and structure of the seat body 210 only need to be able to support other parts of the terminal support seat 201 . As a preferred embodiment, the base body 210 can be used to support the transformer coil. Specifically, the terminal support seat 201 is annular. When the terminal support base 201 is arranged in a circular shape, the longitudinal direction of the terminal support base 201 is the radial direction of the terminal support base 201 . The seat body 210 has an inner peripheral wall 211a. The inner peripheral wall 211a defines a circular hole 212 . The circular hole 212 extends axially to form a through hole. The seat body 210 has an outer peripheral wall 211b. The outer peripheral wall 211b is used to limit the overall radial dimension of the terminal support seat 201 .

In order to further facilitate the stable support of the corresponding transformer coil, a coil holding portion 220 is protruded from the inner peripheral wall 211a of the seat body 210 . The coil holding portion 220 is used to directly support the corresponding transformer coil. The specific shape and structure of the coil holding portion 220 only need to be able to support the corresponding transformer coil. In this embodiment, in order to improve the stable performance of the coil holding portion 220 for supporting the transformer coil, the coil holding portion 220 is approximately in the shape of a letter “T”. Correspondingly, the coil holding portion 220 and a part of the inner peripheral wall 211a form a substantially "I" shape. Further, a plurality of the coil holding parts 220 are evenly arranged along the circumferential direction of the seat body 210 .

The guide holes 230 are used to guide the corresponding first connecting pieces. The specific shape and structure of the guide hole 230 only needs to be able to accommodate and constrain the extending direction of the corresponding first connecting piece. In this embodiment, the guide hole 230 is disposed through the base body 210 along the axial direction of the terminal support base 201 and is a through hole. That is, the guide hole 230 is disposed axially through the upper surface 210 a and the lower surface 210 b of the seat body 210 . More specifically, the guide hole 230 may be a circular hole. The number and distribution of the guide holes 230 are selected according to requirements. In this embodiment, a plurality of the guide holes 230 are arranged in a row along the lateral direction of the terminal support base 201 .

In order to further facilitate the stable support of the connecting terminal 101 , the mounting hole 225 is provided on the seat body 210 . Specifically, the mounting hole 225 axially extends from the upper surface 210 a of the seat body 210 . The shape and structure of the mounting holes 225 only need to be able to accommodate and hold the mounting feet 90 of the corresponding connection terminals 101 . Specifically, the mounting holes 225 are substantially rectangular holes. In order to improve the stable holding performance of the mounting holes 225 for the mounting feet 90 , the hole walls of the mounting holes 225 are in an interference fit with the mounting feet 90 . That is, the hole wall surrounding the mounting hole 225 is arranged in radial contact with the mounting foot 90 . In this embodiment, the mounting hole 225 axially penetrates the seat body 210 and is a through hole. The number and arrangement of the mounting holes 225 are selected according to requirements. In this embodiment, a plurality of the mounting holes 225 are arranged in a row along the lateral direction of the terminal support base 201 . In order to make full use of the space, the mounting holes 225 are arranged laterally adjacent to the guide holes 230 . That is, the mounting holes 225 and the guide holes 230 are arranged along the lateral direction of the terminal support base 201 . Further, the installation holes 225 and the guide holes 230 are alternately arranged in a row along the lateral direction of the terminal support base 201 . Correspondingly, the guide holes 230 are provided on one or both sides of each of the mounting holes 225 in the lateral direction.

The mounting hole 225 is used as a preferred embodiment of the support portion. The support portion may adopt other structures to support the aforementioned connection terminal 101 . For example, the support portion may have a structure such as a clamping structure, a slot, or the like.

The escape hole 250 is provided on the seat body 210 . The escape hole 250 is used to provide a accommodating space for the connection between the first connecting portion 30 of the aforementioned connecting terminal 101 and the corresponding first connecting piece. The specific shape and structure of the escape hole 250 only needs to be able to facilitate the realization of the corresponding connection operation between the first connecting portion 30 and the first connecting piece. Preferably, the first connecting portion 30 and the first connecting member are connected by welding. More specifically, the aforementioned first connecting portion 30 and the first connecting member are welded by resistance welding. Correspondingly, the escape hole 250 can provide an operation space that facilitates the resistance welding between the first connecting portion 30 and the first connecting piece. In order to further facilitate the connection between the third connecting portion 70 and the third connecting piece, the escape hole 250 is a through hole that penetrates the seat body 210 in the axial direction. More specifically, the escape hole 250 may be a circular hole. The number and distribution of the escape holes 250 are selected according to requirements. In this embodiment, a plurality of the escape holes 250 are arranged in a row along the lateral direction of the terminal support base 201 . In order to make full use of the space, the adjacent escape holes 250 are arranged in communication with each other. In order to further utilize the space and facilitate the installation of the connection terminal 101 , the escape hole 250 is longitudinally opposite to the guide hole 230 . More specifically, the escape hole 250 and the guide hole 230 are longitudinally disposed opposite to each other. The escape hole 250 has a larger radial dimension than the guide hole 230 . Specifically, the escape hole 250 has a lateral dimension and/or a longitudinal dimension larger than that of the guide hole 230 . In order to fully utilize the space, a lateral edge of the escape hole 250 is flush with a lateral edge of the connection terminal 101 .

The escape hole 250 is a preferred embodiment of the escape part. The escape portion is used to provide a space for the first connection portion 30 of the connection terminal 101 and the first connection member 402 to be matched and connected. The abdication part may be a structure such as a relinquishment groove, a cavity, and the like.

In order to further stably support the first connecting piece, a holding groove 245 is provided on the seat body 210 . The holding grooves 245 extend along the longitudinal direction of the terminal support base 201 . In order to facilitate the installation of the first connecting piece, the retaining groove 245 communicates with the escape hole 250 . As a preferred embodiment, the retaining groove 245 penetrates the outer peripheral wall 211b of the seat body 210 longitudinally, and forms a through groove. The specific shape of the holding groove 245 is sufficient as long as it can accommodate and hold the corresponding first connecting piece. In this embodiment, the holding groove 245 is substantially a circular arc groove. The number and distribution of the holding grooves 245 are selected according to requirements. In this embodiment, a plurality of the holding grooves 245 are arranged in a row along the lateral direction of the terminal support base 201 . Each of the retaining grooves 245 is longitudinally opposite to a corresponding one of the escape holes 250 . That is, the holding grooves 245 , the escaping holes 250 and the guide holes 230 are longitudinally aligned in order, and are sequentially arranged from the outside to the inside relative to the seat body 210 . Correspondingly, the escape hole 250 is longitudinally spaced from the guide hole 230 , and enables the seat body 210 to support the support portion 25 of the aforementioned connection terminal 101 .

In order for the terminal support base 201 to provide further support for the connection terminal 101 , the terminal support base 201 further includes a blocking portion 265 . The blocking portion 265 is axially protruded from the seat body 210 . Specifically, the blocking portion 265 is disposed on the upper surface 210 a of the seat body 210 . The blocking portion 265 is vertically opposite to the terminal body 10 and can be contacted. Specifically, the blocking portion 265 has a laterally outwardly inclined extension. The blocking portion 265 may be disposed longitudinally facing the limiting portion 45 of the aforementioned connecting terminal 101 , and may be disposed in contact. The blocking portion 265 is vertically opposite to the mounting hole 225 . In this embodiment, a plurality of the blocking portions 265 are laterally arranged in a row.

Embodiment three:

Please refer to FIG. 6 to FIG. 13 , the present invention further provides a resolver 401 . The resolver 401 includes an electrical connection assembly 301 . As required, the resolver 401 may also include its electronic components and/or mechanical components. The electrical connection assembly 301 includes the connection terminal 101 described in the first embodiment and the terminal support base 201 described in the second embodiment. The connection terminal 101 is arranged on the terminal support base 201 .

The assembly relationship between the connection terminal 101 and the terminal support base 201 will be described in detail below: the mounting feet 90 are inserted into the mounting holes 225 . The mounting feet 90 are in radial contact with the hole wall of the mounting hole 225 . The retaining rib 92 on the mounting foot 90 is in radial contact with the hole wall of the mounting hole 225 . According to requirements, at least part of the terminal body 10 is accommodated in the mounting hole 225 . The support portion 25 can be in contact with the seat body 210 so as to obtain the support of the seat body 210 . The first connecting portion 30 extends to the abdication hole 230 and is axially opposite to each other. According to requirements, the first connecting portion 30 extends longitudinally and can be accommodated in the escape hole 230 . The third connection portion 70 extends into the escape hole 230 . Correspondingly, the upper arched surface 35 and the concave surface 75 are perpendicular to the central axis of the escape hole 230 . The blocking portion 25 of the connection terminal 101 and the blocking portion 265 are laterally opposite to each other, and can be provided in contact with each other.

The electrical connection assembly 301 further includes a first connector 402 . The first connecting piece 402 passes through the guide hole 230 . One end of the first connecting member 402 extends to be in electrical contact with the first connecting portion 30 . In this embodiment, one end of the first connecting member 402 is in electrical contact with the upper arch surface 35 . More specifically, one end of the first connecting member 402 is connected to the upper arch surface 35 by welding. As a preferred embodiment, one end of the first connecting member 402 is connected to the upper arch surface 35 by resistance welding. The other end of the second connector 402 extends through the guide hole 230 and extends continuously along the axial direction of the terminal support 201 .

In order to further enhance the stable connection performance of the first connection member 402 and the first connection part 30 , the electrical connection assembly 301 further includes a crimping member. The electrical connection ends are crimped to each other and connected into one body. The crimping member is bent relative to the first connecting member. The crimping member is disposed along the longitudinal direction of the terminal support member. The crimping member is electrically connected to the first connection portion 30 . In the example shown, the crimping member is tubular, ie the sleeve 404 shown in the figure. The sleeve 404 has a sleeve wall 442 . The casing wall 442 encloses a lumen. The lumen is used for accommodating one end 402a of the first connector 402 . Correspondingly, the sleeve wall 442 is disposed in contact with one end 402 a of the first connecting member 402 . Further, a contact convex rib 446 is provided on the outer peripheral surface of the sleeve wall 442 . The contact rib 446 may be arranged in lateral abutment with the groove wall of the retaining groove 245 . That is, the sleeve 404 is in an interference fit with the retaining groove 245 . The sleeve 404 can be directly welded to the first connection portion 30 . Specifically, the sleeve 404 is connected to the first connection portion 30 by resistance welding.

The coil 406 is disposed on the seat body 210 . The specific specifications and parameters of the coil 406 are selected according to application requirements. Correspondingly, the coil 406 may be formed by winding multiple turns of copper wire. The coil 406 is disposed on the inner peripheral wall 211 a of the seat body 210 . In this embodiment, the coil 406 is provided on the coil holding portion 220 . Correspondingly, a plurality of the coils 406 are distributed along the circumference of the seat body 210 .

The rotary transformer further includes an end cover 410 , and the end cover 410 is adapted to the shape of the seat body 210 and is also annular. The end cover 410 includes a terminal cover 411 , the terminal cover 411 is covered with the terminal support base 201 and covers the connection terminal 101 .

According to an embodiment of the present invention, the rotary transformer is further provided with a sealant, and the sealant covers the connection end of the connection terminal 101 and the coil 406 and the first connection member 402 The electrical connection part of the electrical connection terminal.

It should be noted that, unless otherwise specified, “upper, lower,” “left, right,” “front, rear,” and “one, another” appearing in the present invention are all relative concepts and are used in conjunction with the accompanying drawings. In order to facilitate understanding of the relative spatial positions of various components. Among them, "axial", "longitudinal" and "transverse" are perpendicular to each other. "Axial" can refer to the direction in which the connection terminal 101 is installed to the terminal support base 201 , that is, the up-down direction in FIG. 3 . “Longitudinal” can refer to the radially inner and outer directions of the terminal support base 201 , that is, the upper and lower directions in FIG. 2 . The “horizontal direction” refers to the protruding direction of the support portion 25 relative to the terminal body 10 , that is, the left-right direction in FIG. 2 .

The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are all included within the scope of the claims of the present invention.

Claims (36)

1. A connection terminal (101) for a rotary transformer, characterized by comprising:

a terminal body (10) extending in an axial direction;

a first connection portion (30) extending continuously from the terminal body; the first connection portion comprises a connection surface for contacting and connecting a first connector (402); and

a second connecting portion (50) extending continuously from the terminal body for connecting a second connector;

at least part of the connecting surface is arranged axially upwards.

2. A connection terminal according to claim 1, characterized in that:

the terminal body is axially mountable to a terminal support base (201);

the first connection portion (30) is provided extending in a longitudinal direction of the connection terminal;

the second connection portion (50) extends in the axial direction of the connection terminal.

3. The connection terminal according to claim 1, further comprising:

a support portion (25) continuously extending from the terminal body (10);

the first connecting portion (30) extends continuously from the support portion (25).

4. A connection terminal according to claim 3, characterized in that:

at least part of the first connecting part (30) is arranged in a protruding way relative to the supporting part (25) and forms gaps (28, 28b) with the supporting part.

5. A connection terminal according to claim 1, characterized in that:

the connecting surface of the first connection portion comprises a length of upper arcuate surface (351);

the upper arched surface is arranged along the reverse direction of the installation direction of the connecting terminal (101) in a protruding mode and is used for being in contact with and electrically connected with a first connecting piece (402).

6. A connection terminal according to claim 1, characterized in that:

the second connecting portion (50) includes a pair of jaws (52, 52 b);

the pair of clamping claws enclose a clamping groove (54);

when the second connecting piece is accommodated in the clamping groove, the pair of clamping jaws is used for being clamped and matched with the second connecting piece.

7. The connection terminal according to claim 1, further comprising:

and the mounting feet (90) are arranged on the terminal body (10) and continuously extend from the mounting direction of the connecting terminals.

8. A connection terminal according to claim 1, characterized in that:

the terminal body is provided with a top end and a bottom end in the axial direction;

the mounting feet (90) are arranged on the bottom end of the terminal body;

the second connecting portion (50) is axially protrudingly provided on the tip end.

9. A connection terminal according to claim 1, characterized in that:

the connecting terminal is a single piece.

10. A connection terminal according to claim 1, characterized in that:

the connection terminal is made of a single plate having a uniform thickness.

11. A connection terminal according to any one of claims 1 to 10, characterized in that:

some or all of the first connection portions (30) are arranged at a longitudinal interval with respect to the second connection portions (50).

12. A connection terminal according to claim 11, characterized in that:

and part or all of the first connecting part (30) and the second connecting part (50) are respectively arranged at two ends of the connecting terminal in the longitudinal direction.

13. A connection terminal according to claim 11, characterized in that:

and part or all of the first connecting parts (30) and the second connecting parts (50) are arranged in a staggered mode in the transverse direction of the connecting terminal.

14. A terminal support block (201) for a rotary transformer for mounting and supporting a connection terminal (101), the terminal support block comprising:

a seat body (210);

the socket body is provided with a support portion (225) for mounting and supporting a terminal body (10) of the connection terminal.

15. The terminal support block of claim 14, wherein:

the seat body is provided with a yielding part (250) which is used for providing a space for connecting the first connecting part (30) of the connecting terminal and the first connecting piece to be connected and matched.

16. The terminal support block of claim 14, wherein:

the terminal supporting seat can be assembled with the connecting terminal along the axial direction;

at least part of the relief portion (250) is laterally spaced relative to the support portion.

17. The terminal support block of claim 14, wherein:

the support portion (225) includes a mounting hole;

when the mounting foot (90) of the connecting terminal is accommodated in the mounting hole, the hole wall of the mounting hole and the mounting foot can be arranged in an abutting manner.

18. The terminal support block of claim 17, wherein:

the plurality of the abdicating holes are arranged in a row along the transverse direction of the terminal supporting seat;

and the adjacent abdicating holes are communicated with each other.

19. The terminal support block of claim 14, wherein:

the seat body has an outer peripheral wall (211 b);

the seat body is provided with a holding through hole (245) for accommodating and supporting a first connecting piece;

the retaining groove extends through the peripheral wall for receiving and supporting a first connector.

20. The terminal support block of claim 19, wherein:

the seat body is provided with an axially extending guide bore for the first connector (402) to pass therethrough.

21. The terminal support block of claim 20, wherein:

the retaining slot is longitudinally aligned with the guide hole.

22. The terminal support block of claim 21, further comprising:

the guide hole is provided more inward in the longitudinal direction of the terminal support body than the relief portion (250).

23. The terminal support block of claim 21, wherein:

the terminal supporting seat can be assembled with the connecting terminal along the axial direction;

the guide hole is provided opposite to the relief portion (250) in the longitudinal direction of the terminal support base.

24. The terminal support block of claim 14, wherein:

the support portion is used for mounting and supporting the connection terminal according to any one of claims 1 to 13.

25. A rotary transformer (301), comprising:

the terminal support housing of any one of claims 14 to 24; the terminal supporting seat is annular;

the terminal support base is provided with a plurality of coil holding parts;

a plurality of connection terminals according to any one of claims 1 to 13, the terminal bodies (10) of the plurality of connection terminals being fixedly provided to the support portions (225) of the terminal support seats, respectively;

a plurality of coils (406) wound on the coil holding portion; the connecting end of each coil is electrically connected with the preset connecting terminal; and

a plurality of first connectors (402) each having an electrical connection end electrically connected to the first connection portions on the plurality of connection terminals, respectively.

26. The rotary transformer of claim 25, wherein:

along the radial direction of the terminal supporting seat, the first connecting part of the connecting terminal is close to the supporting part outside.

27. The rotary transformer of claim 25, wherein:

the longitudinal direction of the connecting terminal is arranged along the radial direction of the terminal supporting seat.

28. The rotary transformer of claim 25, wherein:

the terminal body is provided with two ends in the longitudinal direction of the terminal supporting seat;

one end of the terminal body is provided with a limiting part (45);

the first connecting part is arranged at the other end of the terminal body;

the limiting part extends downwards from one end of the connecting terminal to the other end of the connecting terminal in an inclined mode;

the seat body is provided with a blocking part (265);

the blocking part can be matched with the limiting part in a longitudinal blocking mode.

29. The rotary transformer of claim 25, wherein:

the seat body is provided with a guide hole (230);

the first connector extends through the guide hole;

the guide hole is provided more inward in the radial direction of the terminal support base than the relief portion (250).

30. The rotary transformer of claim 30, further comprising:

the guide hole is arranged between the terminal bodies corresponding to the two adjacent connecting terminals.

31. The rotary transformer of claim 25, further comprising:

a crimp (404);

the crimping piece and the electric connection end of the first connecting piece are mutually crimped and connected into a whole;

the crimp member is electrically connected to the first connection portion (30).

32. The rotary transformer of claim 31, wherein:

the crimping piece (404) is arranged in a bending mode relative to the first connecting piece.

33. The rotary transformer of claim 31, wherein:

the crimping member (404) is disposed in a radial direction of the terminal support base.

34. The rotary transformer of claim 31, wherein:

the crimp forms a sleeve (404) having a wall; the tube wall is enclosed into a tube cavity;

the pipe wall is electrically connected with the first connecting part (30) in a welding way;

the electric connection end of the first connecting piece extends into the tube cavity and is in contact and electric connection with the tube wall.

35. The rotary transformer of claim 25, further comprising:

an end cap removably mounted to the bracket;

the end cover comprises a terminal cover, and the terminal cover is covered with the terminal supporting seat to surround the connecting terminal.

36. The rotary transformer of claim 35, further comprising:

and the sealant covers the electric connection part of the connection end of the connection terminal and the coil and the electric connection end of the first connection piece.

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