CN219246952U - Electric connection structure and electronic equipment - Google Patents

Abstract

The utility model discloses an electric connection structure and electronic equipment, and relates to the technical field of electric equipment. The electric connection structure comprises a fixed seat, a conducting rod and a filter plate; the filter plate is sleeved on the conducting rod; a first electric connection part is arranged on one side of the filter plate, which is close to the conducting rod, and the first electric connection part is fixedly connected with the side wall of the conducting rod; the filter plate is provided with a filter element, the filter element is fixedly connected with the filter plate, one end of the filter element is connected with the first electric connection part, and the other end of the filter element is used for grounding. The two ends of the filtering element are respectively connected with the first electric connection part and are used for grounding so as to be capable of filtering; the filter plate is sleeved on the conducting rod, the first electric connection part is fixedly connected with the side wall of the conducting rod, and the filter element is fixedly connected with the filter plate, so that the connection stability of the first electric connection part can be ensured, and the installation space occupied by the electric connection structure can be reduced; in addition, the filter element can be integrated on the electric connection structure, which is beneficial to reducing the assembly time of the corresponding electronic equipment.

Description

Electric connection structure and electronic equipment

Technical Field

The present utility model relates to the field of electrical devices, and in particular, to an electrical connection structure and an electronic device.

Background

A traveling apparatus such as an electric vehicle is generally provided with a current converter including an AC-to-DC converter (AC/DC converter, alternating Current to Direct Current, AC-to-DC converter), or a DC-to-DC converter (DC/DC converter, direct current to Direct cu rrent converter, DC-to-DC converter). Generally, an AC/DC converter converts alternating current into direct current, and a DC/DC converter converts direct current of a higher voltage into direct current of a lower voltage.

For a connection port such as an output positive electrode of the DC/DC converter, filtering is generally required to meet the requirement of electromagnetic compatibility. At this time, a connection plane is manufactured on the side surface of one end of the conducting rod arranged in the current converter shell, and a circuit board containing a filter capacitor is fixed on the connection plane through a screw; due to the influence of the installation position and space radiation, more filter capacitors need to be installed, so that the required space is larger.

Disclosure of Invention

The main object of the present utility model is to provide an electrical connection structure, which is beneficial to reducing the occupied installation space.

In order to achieve the above object, the present utility model provides an electrical connection structure including a terminal and a filter board; the terminal comprises a fixed seat and a conductive rod; the filter plate is sleeved on the conducting rod; a first electric connection part is arranged on one side of the filter plate, which is close to the conducting rod, and the first electric connection part is fixedly connected with the side wall of the conducting rod; the filter plate is provided with a filter element, the filter element is fixedly connected with the filter plate, one end of the filter element is connected with the first electric connection part, and the other end of the filter element is grounded.

Optionally, the side wall of the conductive rod is provided with a plurality of protrusions, the protrusions are arranged at intervals along the circumferential direction of the conductive rod, and the protrusions are abutted to the first electric connection part.

Optionally, the protrusion is disposed to extend along an axial direction of the conductive rod; and/or the protrusions are formed by knurling or by bead welding.

Optionally, the filter board comprises at least one first board section extending along the axial direction of the conductive rod, and the first electrical connection part is arranged on the first board section; the first plate section is abutted with the side wall of the conducting rod, and/or the first plate section is welded and fixed with the side wall of the conducting rod, and/or the first plate section is fixedly connected with the side wall of the conducting rod through a fastener; and/or the side wall of the conducting rod is connected with the first electric connection part through a press fitting.

Optionally, a second electrical connection portion is disposed on a side, far away from the conductive rod, of the filter board, the second electrical connection portion is used for grounding, and the filter element is electrically connected with the first electrical connection portion and the second electrical connection portion respectively.

Optionally, the filter plate is annular, the second electrical connection part is arranged on a radial end part of the filter plate, and the first electrical connection part is arranged on an inner peripheral edge of the filter plate and is used for being electrically connected with the side wall of the conductive rod; or, the first electrical connection portion is disposed at an inner peripheral edge of the filter plate and extends to a radial end portion of the filter plate facing away from the second electrical connection portion for electrical connection with a side wall of the conductive rod.

Optionally, the electrical connection structure further includes a grounding ring, an axial end of the grounding ring abuts against the second electrical connection portion, and another axial end of the grounding ring is used for abutting against the mounting housing.

Optionally, the grounding ring is a corrugated spring or a belleville spring, the installation shell is provided with a shell through hole, and one end of the conducting rod penetrates through the shell through hole; the fixing seat is used for being fixedly connected with the installation shell, so that the grounding ring is compressed along the axial direction of the conducting rod and is abutted with the installation shell.

Optionally, the filter board comprises a first ring board and a second ring board, the first ring board and the second ring board are both sleeved on the conducting rod, and the second ring board and the first ring board are arranged at intervals; the first electric connection part is arranged on one side of the first annular plate, which is close to the conducting rod, and the second annular plate is provided with a second electric connection part which is used for grounding; the filter element is electrically connected with the first electric connection part and the second electric connection part respectively.

Optionally, the electrical connection structure further includes a third ring plate, the third ring plate being disposed between the first ring plate and the second ring plate, the third ring plate communicating with the filter element between the first ring plate and the second ring plate.

Optionally, a second plate through hole is formed in the second ring plate, the second electrical connection portion includes at least a portion of a side wall of the second plate through hole, and the side wall of the second plate through hole is used for being connected with the installation shell through a metal fastener, so that the second electrical connection portion is connected with the installation shell.

Optionally, the electric connection structure further comprises a magnetic ring, the magnetic ring is sleeved on the conducting rod, and the magnetic ring and the filter plate are arranged along the axial direction of the conducting rod.

Optionally, two axial ends of the magnetic ring are respectively abutted with a first baffle ring and a second baffle ring, the first baffle ring and the second baffle ring are sleeved on the conducting rod, and the first baffle ring is abutted with the filter plate or the fixing seat.

The utility model also provides electronic equipment, which comprises the mounting shell and the electric connection structure.

According to the technical scheme, one end of the filter element is connected with the first electric connection part, and the other end of the filter element is grounded, so that the electric connection structure can filter; in addition, the filter plate is sleeved on the conductive rod, the first electric connection part on the filter plate is fixedly connected with the side wall of the conductive rod, and the filter element is fixedly connected with the filter plate, so that the connection stability of the first electric connection part and the side wall of the conductive rod can be ensured, and the installation space occupied by the electric connection structure can be reduced; in addition, the filter element can be integrated on the electric connection structure, which is beneficial to reducing the assembly time of the corresponding electronic equipment.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of one embodiment of an electrical connection structure of the present utility model.

Fig. 2 is a cross-sectional view of an embodiment of an electrical connection structure of the present utility model.

Fig. 3 is a perspective view of an embodiment of an electrical connection structure according to the present utility model.

Fig. 4 is a bottom perspective view of an embodiment of an electrical connection structure according to the present utility model.

Fig. 5 is a schematic diagram illustrating connection between a fixing base and a fixing tube according to an embodiment of the utility model.

Fig. 6 is a partial enlarged view at a in fig. 5.

FIG. 7 is a cross-sectional view of a fixing base and a fixing tube according to an embodiment of the present utility model.

Fig. 8 is a perspective view of a conductive rod according to an embodiment of the present utility model.

Fig. 9 is an exploded view of another embodiment of the electrical connection structure of the present utility model.

Fig. 10 is a schematic diagram of connection of a conductive rod according to another embodiment of the present utility model.

Fig. 11 is an exploded view of yet another embodiment of the electrical connection structure of the present utility model.

Fig. 12 is a schematic diagram showing connection of filter elements according to another embodiment of the present utility model.

Fig. 13 is a cross-sectional view of yet another embodiment of an electrical connection structure of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Conductive rod	110	Protrusions
120	Fish eye terminal structure	200	Filtering board
				201	First electric connection part	202	Second electric connection part
210	First annular plate	211	First plate section
				212	Penetrating structure	213	Second plate section
214	First plate through hole	220	Grounding ring
				231	First sealing ring	240	Second annular plate
241	Second plate through hole	250	Third annular plate
				260	Magnetic ring	270	Fixed pipe
271	Connecting column	272	First baffle ring
				273	Second baffle ring	274	Containing ring groove
280	Abutting piece	290	Second sealing ring
				300	Filtering element	400	Fixing seat
410	Through hole of seat body	421	First accommodating recess
				422	Second accommodating recess

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an electric connection structure which can be applied to electronic equipment such as vehicle-mounted terminal equipment and the like.

Referring to fig. 1 to 8, the electrical connection structure includes a terminal and a filter board 200. The terminal includes a fixing base 400 and a conductive rod 100, and the conductive rod 100 may be made of metal, such as a copper rod. The filter board 200 may be provided as a single ring board (e.g., a PCB circuit board), and the filter board 200 may be provided by a plurality of ring boards sequentially arranged in the axial direction. The filter element 300 may be configured as a filter capacitor or a filter inductor. The filter plate 200 may be configured to be annular, and the filter plate 200 is sleeved on the conductive rod 100, i.e. the conductive rod 100 passes through the inner hole of the filter plate 200. The filter board 200 is provided on one side thereof adjacent to the conductive rod 100 with a first electrical connection portion 201, and the first electrical connection portion 201 may be formed of copper by electroplating, in which case the first electrical connection portion 201 may be disposed on the inside of the loop of the filter board 200 (when the filter board 200 is disposed in a loop shape). The first electrical connection part 201 is fixedly connected with the side wall of the conductive rod 100; the filter board 200 is provided with a filter element 300, the filter element 300 is fixedly connected with the filter board 200, one end of the filter element 300 is connected with the first electric connection part 201, and the other end of the filter element 300 is used for grounding.

By connecting one end of the filter element 300 with the first electrical connection portion 201, the other end of the filter element 300 is used for grounding, and the electrical connection structure can perform filtering; in addition, the filter board 200 is sleeved on the conductive rod 100, the first electric connection part 201 on the filter board 200 is fixedly connected with the side wall of the conductive rod 100, and the filter element 300 is fixedly connected with the filter board 200, so that not only can the connection stability of the first electric connection part 201 and the side wall of the conductive rod 100 be ensured, but also the installation space occupied by an electric connection structure can be reduced; in addition, the filter element 300 can be integrated on the electrical connection structure, which is beneficial to reducing the assembly time of the corresponding electronic device.

Further as an alternative embodiment, the side wall of the conductive rod 100 is provided with a plurality of protrusions 110, the protrusions 110 are arranged at intervals along the circumferential direction of the conductive rod 100, and the protrusions 110 are abutted against the first electrical connection part 201. At this time, the protrusion 110 is abutted to the first electrical connection portion 201, that is, the side wall of the conductive rod 100 and the first electrical connection portion 201 can be in interference fit, so that the connection stability of the first electrical connection portion 201 and the conductive rod 100 is further improved.

Further alternatively, the filter plate 200 is ring-shaped, and the first electrical connection portion 201 is disposed at an inner peripheral edge of the filter plate 200 for electrical connection with a sidewall of the conductive rod 100; as an alternative embodiment, the first electrical connection portion 201 is provided on the inner peripheral edge of the filter plate 200 and extends to a radial end portion of the filter plate 200 (an inner side of the lower end in fig. 1, may be specifically provided to extend to a radial end portion facing away from the second electrical connection portion 202 described below) for electrical connection with the side wall of the conductive rod 100. That is, when the side wall of the conductive rod 100 is in interference fit with the first electrical connection portion 201, the protrusion 110 is extruded and deformed and then extends onto the filter board 200, and at this time, the first electrical connection portion 201 extends onto the radial end portion of the filter board 200, and can be correspondingly connected with the extruded and deformed portion of the protrusion 110, so that the contact area between the first electrical connection portion 201 and the conductive rod 100 is increased, and the stability of electrical connection is improved.

Further as an alternative embodiment, the protrusions 110 are provided to extend in the axial direction of the conductive rod 100, such as providing the protrusions 110 in a rack shape. The protrusion 110 is extended along the axial direction of the conductive rod 100, which is advantageous in improving the convenience of manufacturing the protrusion 110. At this time, the protrusions 110 may be formed by knurling or by build-up (including machining after build-up).

Further alternatively, the side of the filter board 200 away from the conductive rod 100 is further provided with a second electrical connection portion 202, where the second electrical connection portion 202 is used for grounding, and the second electrical connection portion 202 may be formed with copper by electroplating. For example, the second electrical connection 202 may be configured to: when the filter board 200 is annular, the second electrical connection portion 202 is disposed on a radial end portion (an outer side of an upper end as shown in fig. 1) of the annular filter board 200, and the filter element 300 is electrically connected to the first electrical connection portion 201 and the second electrical connection portion 202, respectively. At this time, the first electrical connection portion 201 and the second electrical connection portion 202 are both disposed on the filter board 200, which is beneficial to making the electrical connection structure more compact and further reducing the installation space occupied by the electrical connection structure.

Further alternatively, at least one filter element 300 is disposed on both sides of the filter board 200, and the filter elements 300 on the same side are arranged along the circumferential direction of the filter board 200, which is beneficial to further reducing the installation space occupied by the electrical connection structure through the arrangement of the filter elements 300.

Further alternatively, referring to fig. 1 and 7, the electrical connection structure further includes a fixing base 400, the fixing base 400 is provided with a base through hole 410, the conductive rod 100 passes through the base through hole 410, and a side wall of the conductive rod 100 is fixedly connected with a hole wall of the base through hole 410, and specifically, the fixing base 400 can be formed by coating plastic on the conductive rod 100. A first accommodating recess 421 is formed at one side of the fixing base 400, the diameter of the first accommodating recess 421 is larger than that of the base through hole 410, and the first accommodating recess 421 is communicated with the base through hole 410, so that a step surface is formed; the filter plate 200 is disposed in the first accommodating recess 421, and the filter plate 200 may be disposed to abut against the bottom surface of the first accommodating recess 421, i.e., the stepped surface. The second electrical connection portion 202 faces the opening of the first accommodation recess 421, thereby facilitating the connection of the second electrical connection portion 202 to an external structure for grounding.

Further alternatively, the electrical connection structure further includes a grounding ring 220, where one axial end of the grounding ring 220 abuts against the second electrical connection portion 202, and the other axial end of the grounding ring 220 is used to abut against the mounting housing; at this time, the ground ring 220 may be grounded through the mounting case. The installation housing is provided with a housing through hole through which one end of the conductive rod 100 passes; the fixing base 400 is fixedly connected to the mounting housing, so that the grounding ring 220 is used for compressing along the axial direction of the conductive rod 100 (such as the grounding ring 220 is configured as a belleville spring or a belleville spring to facilitate compression) and abuts against the mounting housing. The ground ring 220 is used for compressing along the axial direction of the conductive rod 100, which is beneficial to improving the contact area and connection stability with the external structure such as the mounting housing. By providing the ground ring 220, the electrical connection structure facilitates the use of ground rings 220 of different axial lengths to better accommodate installation clearances with external structures.

In addition, the fixing base 400 is further provided with a first sealing ring 231, and two sides of the first sealing ring 231 are respectively used for abutting against the fixing base 400 and the installation shell, so that the sealing degree of connection of the fixing base 400 and the installation shell and other external structures is improved.

Further as an alternative embodiment, the electrical connection structure further includes a magnetic ring 260, the magnetic ring 260 is sleeved on the conductive rod 100, and the magnetic ring 260 and the filter board 200 are arranged along the axial direction of the conductive rod 100. The magnetic ring 260 can make the overall structure of the electrical connection structure more compact while realizing the filtering function of the conductive rod 100 in the current conduction direction.

Further alternatively, the two axial ends of the magnetic ring 260 are respectively abutted with a first stop ring 272 and a second stop ring 273, the first stop ring 272 and the second stop ring 273 are both sleeved on the conductive rod 100, and the first stop ring 272 is abutted with the filter plate 200 or the fixing base 400.

Further, the first stopper ring 272 and the second stopper ring 273 may be connected by a fixing tube 270 described below.

Further as an alternative embodiment, the electrical connection structure further includes a fixing tube 270, the fixing tube 270 is sleeved outside the conductive rod 100, and the magnetic ring 260 is sleeved outside the fixing tube 270; the fixing base 400 is at least partially disposed at one side of the filter plate 200, and the fixing tube 270 is disposed at the other side of the filter plate 200; the fixing tube 270 is fixedly connected with the fixing base 400, for example, the fixing base 400 and the fixing tube 270 are integrally formed by plastic coating. The fixing tube 270 is fixedly connected with the fixing base 400, which is advantageous to improve the overall manufacturing efficiency of the electrical connection structure.

Further alternatively, the filter board 200 is provided with a first plate through hole 214, the end of the fixing tube 270 is provided with a connection post 271, and the connection post 271 passes through the first plate through hole 214, and the connection post 271 is fixedly connected with the fixing base 400. The connecting post 271 passes through the first plate through hole 214, so that the fixing base 400, the connecting post 271 and the fixing tube 270 are integrally formed, and the whole electric connection structure can be more compact.

Further alternatively, the first stopper ring 272 and the second stopper ring 273 are respectively disposed at both axial ends of the fixing tube 270, and the connection post 271 is disposed on the first stopper ring 272; the first blocking ring 272 and the second blocking ring 273 are arranged at intervals to form a containing ring groove 274, and the magnetic ring 260 is sleeved on the containing ring groove 274, so that the magnetic ring 260 is effectively fixed. At this time, the fixing base 400, the connection post 271, the first blocking ring 272, the fixing tube 270, and the second blocking ring 273 may be molded integrally.

Further alternatively, the fixing base 400 includes a first side and a second side disposed opposite to each other, and the first side is used for being connected with the mounting housing; referring to fig. 4 and 7, the second side is provided with a second receiving recess 422, and the diameter of the second receiving recess 422 is greater than that of the seat body through hole 410, thereby forming a stepped surface; the second accommodating recess 422 is provided therein with a second sealing ring 290, and the second sealing ring 290 may be formed by filling glue. The inner side of the second seal ring 290 abuts against the side wall of the conductive rod 100, the outer side of the second seal ring 290 abuts against the side wall of the second accommodation recess 422, and the degree of sealing between the conductive rod 100 and the fixing base 400 is improved at the second side.

As an alternative embodiment, referring to fig. 9, the conductive rod 100 is further provided with an abutment 280, such as a snap ring or a plug rod (corresponding ring groove and jack may be provided on the conductive rod 100 in this case), where the abutment 280 is detachably connected to the conductive rod 100. The abutment 280 is disposed on a side (e.g., an upper side in the drawing) of the fixing tube 270 facing away from the filter board 200, and the abutment 280 is configured to abut against an axial end (e.g., an upper end in the drawing) of the fixing tube 270. The other axial end (e.g., the lower end in the drawing) of the fixing tube 270 is abutted against the filter board 200 or the fixing base 400, and the first stop ring 272 may be further disposed and then abutted against the filter board 200 or the fixing base 400.

At this time, the fixing tube 270 can be disassembled and assembled, which improves flexibility of parallel manufacturing of the electrical connection structure, thereby being beneficial to improving manufacturing efficiency and maintaining the electrical connection structure.

As an alternative embodiment, referring to fig. 10, the side wall of the conductive rod 100 is connected to the first electrical connection 201 by a press fitting, with respect to the connection form of the filter element 300 to the first electrical connection 201 and the second electrical connection 202. The press fitting is a member that provides a force in a radial direction of the conductive rod 100 between the conductive rod 100 and the first electrical connection portion 201, so that the conductive rod 100 and the first electrical connection portion 201 are subjected to a pressure to perform a mating connection. The press fitting may be provided in a fisheye terminal structure, a dot structure or a strip structure or a hook structure provided on the conductive rod, or the like. As for the fish-eye terminal structure between the side wall of the conductive rod 100 and the first electrical connection portion 201, it is specifically possible to provide: the side wall of the conductive rod 100 is provided with a plurality of fish-eye terminal structures 120, and the fish-eye terminal structures 120 are arranged along the circumferential direction of the conductive rod 100; the axis of the fisheye terminal structure 120 is tangential to the circumferential direction of the conductive rod 100, and the annular outer side of the fisheye terminal structure 120 abuts against the first electrical connection part 201. At this time, the elastic force to the first electrical connection portion 201 can be provided by the annular structure of the fisheye terminal structure 120, so that the connection stability of the first electrical connection portion 201 and the conductive rod 100 is further improved.

Further as an alternative embodiment, at least one through structure 212 on the filter board 200, the first electrical connection portion 201 is disposed on a sidewall of the through structure 212, and the through structure 212 may be configured as a through hole or a notch; the fisheye terminal structure 120 extends into the through structure 212, and the annular outer side of the fisheye terminal structure 120 abuts against the sidewall of the through structure 212. The fisheye terminal structure 120 extends into the penetrating structure 212, so that the connection between the fisheye terminal structure 120 and the first electrical connection part 201 is more stable. The fisheye terminal structure 120 is an elliptical ring, and the long axis direction of the fisheye terminal structure 120 is parallel to the axis of the conductive rod 100. In this case, the press fitting may be configured to have a strip structure, a hook structure, or the like, which can be inserted into the through structure 212, which is not limited in this embodiment.

Further as an alternative embodiment, the filter plate 200 comprises at least one first plate section 211, the first plate section 211 being arranged extending in the axial direction of the conductive rod 100, the filter plate 200 comprises at least one second plate section 213, the second plate section 213 being arranged on the first plate section 211, the plate plane of the second plate section 213 being at an angle of less than 90 degrees to the plate plane of the filter plate 200, and the through structure 212 being arranged on the second plate section 213.

As for the connection form of the filter element 300 with the first and second electrical connection portions 201, 202, as an alternative embodiment, referring to fig. 11, the filter board 200 includes at least one first board segment 211, the first board segment 211 being disposed to extend in the axial direction of the conductive rod 100, the first electrical connection portion 201 being disposed on the first board segment 211; the first plate segment 211 is abutted to the side wall of the conductive rod 100 to achieve interference fit, and/or the first plate segment 211 is welded and fixed to the side wall of the conductive rod 100 (for example, laser welding is adopted), and/or the first plate segment 211 is fixedly connected to the side wall of the conductive rod 100 through a fastener (for example, in a locking screw mode), which is beneficial to further improving connection stability of the first electric connection portion 201 and the conductive rod 100.

Further alternatively, referring to fig. 11 and 12, the filter board 200 includes a first ring board 210 and a second ring board 240, where the first ring board 210 and the second ring board 240 are both sleeved on the conductive rod 100, and the second ring board 240 is spaced from the first ring board 210, and both the first ring board 210 and the second ring board 240 may be made of metal; the second ring plate 240 is provided with a second electrical connection portion 202, and the second electrical connection portion 202 is used for grounding; the filter element 300 is electrically connected to the first electrical connection portion 201 and the second electrical connection portion 202, respectively. The electrical connection structure can be arranged at intervals between the second ring plate 240 and the first ring plate 210, so that the electrical connection structure is compact as a whole. In addition, the second ring plate 240 is spaced apart from the first ring plate 210, so that conditions are created for manufacturing the first and second ring plates 210 and 240 from metal without using a PCB circuit board.

Further as an alternative embodiment, the electrical connection structure further includes a third ring plate 250, and the third ring plate 250 may be provided as a copper bar. The third ring plate 250 is disposed between the first ring plate 210 and the second ring plate 240, and the third ring plate 250 communicates with the filter element 300 between the first ring plate 210 and the second ring plate 240. Specifically: at least one filter element 300 is disposed between the first ring plate 210 and the third ring plate 250, and between the third ring plate 250 and the second ring plate 240, the filter element 300 between the first ring plate 210 and the third ring plate 250 is disposed with two ends electrically connected with the first electric connection portion 201 and the third ring plate 250, and the filter element 300 between the third ring plate 250 and the second ring plate 240 is disposed with two ends electrically connected with the third ring plate 250 and the second electric connection portion 202. The third ring plate 250 can improve the connection stability with the filter element 300, and is also beneficial to controlling the connection tolerance of the filter element 300 in the axial direction. For example, the filter elements 300 on both sides of the third ring plate 250 are connected to the third ring plate 250 by welding, so that the connection is more stable, and the connection tolerance of the filter elements 300 on both sides of the third ring plate 250 is more convenient to control.

Further alternatively, the second ring plate 240 is provided with a second plate through hole 241, and the second electrical connection portion 202 includes at least a portion of a sidewall of the second plate through hole 241, that is, the sidewall of the second plate through hole 241 may be partially used as the second electrical connection portion 202, and the sidewall of the second plate through hole 241 may also be used as the second electrical connection portion 202. At this time, the sidewall of the second plate through hole 241 is made of a conductive material, and the second ring plate 240 is made of metal or coated with copper as described above. The side wall of the second plate through hole 241 is used for connecting with the mounting case through a metal fastener (including adding a bushing between the fastener and the second plate through hole 241 as shown in the drawings) so as to connect the second electrical connection portion 202 with a ground circuit provided in the mounting case; that is, the second electrical connection portion 202, the metal fastener, and the grounding circuit provided in the mounting case are connected in order to realize grounding. At this time, the second ring plate 240 may be mostly wrapped in the plastic part, as shown in fig. 13, so as to improve the use safety of the second ring plate 240.

Further alternatively, the filter elements 300 on the same side of the third ring plate 250 are arranged in the circumferential direction of the third ring plate 250 to further improve the overall compactness of the electrical connection structure.

The utility model also provides electronic equipment, such as vehicle-mounted terminal equipment on an electric automobile. The electronic device comprises the electric connection structure. The specific structure of the electrical connection structure refers to the above embodiments, and because the electronic device adopts all the technical solutions of all the embodiments, the electrical connection structure at least has all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structural changes made by the description and drawings of the present utility model or the direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (14)

1. An electrical connection structure, comprising:

the terminal comprises a fixed seat and a conductive rod;

the filter plate is sleeved on the conducting rod; a first electric connection part is arranged on one side of the filter plate, which is close to the conducting rod, and the first electric connection part is fixedly connected with the side wall of the conducting rod;

the filter plate is provided with a filter element, the filter element is fixedly connected with the filter plate, one end of the filter element is connected with the first electric connection part, and the other end of the filter element is grounded.

2. The electrical connection structure of claim 1, wherein the side wall of the conductive rod is provided with a plurality of protrusions, the protrusions being disposed at intervals along the circumferential direction of the conductive rod, the protrusions abutting the first electrical connection portion.

3. The electrical connection structure of claim 2, wherein the protrusions are disposed extending in an axial direction of the conductive rod; and/or the number of the groups of groups,

the protrusions are formed by knurling or by bead welding.

4. The electrical connection structure of claim 1, wherein the filter plate includes at least one first plate segment extending in an axial direction of the conductive rod, the first electrical connection being provided on the first plate segment; the first plate section is abutted with the side wall of the conducting rod, and/or the first plate section is welded and fixed with the side wall of the conducting rod, and/or the first plate section is fixedly connected with the side wall of the conducting rod through a fastener; and/or the side wall of the conducting rod is connected with the first electric connection part through a press fitting.

5. The electrical connection structure of claim 1, wherein a second electrical connection portion is disposed on a side of the filter plate away from the conductive rod, the second electrical connection portion is used for grounding, and the filter element is electrically connected to the first electrical connection portion and the second electrical connection portion, respectively.

6. The electrical connection structure of claim 5, wherein the filter plate is ring-shaped, the second electrical connection portion is provided on a radial end portion of the filter plate, and the first electrical connection portion is provided on an inner peripheral edge of the filter plate for electrical connection with a side wall of the conductive rod; or alternatively, the first and second heat exchangers may be,

the first electrical connection portion is provided on an inner peripheral edge of the filter plate and extends to a radial end portion of the filter plate facing away from the second electrical connection portion for electrical connection with a side wall of the conductive rod.

7. The electrical connection structure of claim 6, further comprising a ground ring, one axial end of the ground ring abutting the second electrical connection portion, and the other axial end of the ground ring being adapted to abut the mounting housing.

8. The electrical connection of claim 7, wherein the ground ring is provided as a bellow spring or a belleville spring, the mounting housing is provided with a housing through hole, and one end of the conductive rod passes through the housing through hole; the fixing seat is used for being fixedly connected with the installation shell, so that the grounding ring is compressed along the axial direction of the conducting rod and is abutted with the installation shell.

9. The electrical connection structure of any one of claims 1 to 5, wherein the filter plate comprises a first ring plate and a second ring plate, the first ring plate and the second ring plate are both sleeved on the conductive rod, and the second ring plate is arranged at a distance from the first ring plate; the first electric connection part is arranged on one side of the first annular plate, which is close to the conducting rod, and the second annular plate is provided with a second electric connection part which is used for grounding; the filter element is electrically connected with the first electric connection part and the second electric connection part respectively.

10. The electrical connection of claim 9, further comprising a third ring plate disposed between the first ring plate and the second ring plate, the third ring plate in communication with the filter element between the first ring plate and the second ring plate.

11. The electrical connection of claim 9, wherein the second ring plate is provided with a second plate through hole, the second electrical connection portion including at least a portion of a sidewall of the second plate through hole, the sidewall of the second plate through hole being for connection with a mounting housing by a metal fastener to connect the second electrical connection portion with the mounting housing.

12. The electrical connection structure of any one of claims 1 to 5, further comprising a magnetic ring sleeved on the conductive rod, wherein the magnetic ring and the filter plate are arranged in an axial direction of the conductive rod.

13. The electrical connection structure of claim 12, wherein two axial ends of the magnetic ring are respectively abutted with a first baffle ring and a second baffle ring, the first baffle ring and the second baffle ring are sleeved on the conductive rod, and the first baffle ring is abutted with the filter plate or the fixing seat.

14. An electronic device comprising a mounting housing and an electrical connection structure according to any one of claims 1 to 13.

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