CN220963836U - Connector and connector assembly - Google Patents

Abstract

A connector and a connector assembly including the same are disclosed. The connector includes: a first fastener; and a housing, the first fastener being disposed on the housing to fasten a wire between the housing and the first fastener, the housing comprising: a sidewall; and a finger extending from one end of the sidewall; wherein the side wall is provided with a shoulder for withstanding an applied external force to crimp the finger into the circuit board, the height of the shoulder from the one end of the side wall being selected such that the housing does not deform during crimping. The arrangement of the shoulder prevents external force from being applied to the top wall of the shell, greatly reduces the height of the stressed part of the shell from the circuit board, effectively reduces or even eliminates the risk of deformation of the shell and damage to the connector caused by overlarge external force applied to the shell in the process of crimping the finger into the through hole of the circuit board, and improves the reliability of the connector.

Description

Connector and connector assembly

Technical Field

The present utility model relates to a connector and connector assembly, and more particularly to a connector and connector assembly having improved signal integrity and reliability.

Background

A connector is a device for connecting two active devices to transmit current or signals. The connector can simplify the assembly process of the electronic product and also simplify the mass production process of the electronic product. The connector is easy to maintain, and if a certain electronic component fails, the failed component can be quickly replaced under the condition of being provided with the connector; with the technical progress, the electronic product with the connector can update the electronic element, and the new electronic element with better performance is used for replacing the old electronic element, thereby being convenient for updating; connectors can improve flexibility in product design when designing and integrating new products, as well as when composing systems from electronic components. Therefore, the connector is widely applied to the fields of traffic, medical treatment, aerospace, military, household appliances and the like.

The basic performance of connectors can be divided into three general categories: i.e. mechanical properties, electrical properties and environmental properties.

The insertion and extraction forces and the mechanical life are important mechanical properties. The insertion and extraction forces and mechanical life of the connector are related to the contact structure (positive pressure magnitude), the contact site plating quality (sliding friction coefficient), and the dimensional accuracy (alignment) of the contact arrangement.

The main electrical properties of the connector include contact resistance, insulation resistance and electrical resistance. Wherein high quality electrical connectors should have low and stable contact resistance, the contact resistance of the connector varying from a few milliohms to tens of milliohms; insulation resistance is an indicator of the insulation performance between contacts and a housing of an electrical connector, the insulation resistance being on the order of hundreds to thousands of megaohms; the dielectric strength is an indication of the ability of the connector to withstand a rated test voltage between contacts or between a contact and a housing.

Environmental properties include temperature resistance, moisture resistance, salt spray resistance, vibration resistance, impact resistance, and the like.

The development of connector technology has exhibited the following characteristics: the signal transmission has high speed and digital, the integration of various signal transmission, the miniaturization of product volume, the low cost of product, the module combination, the convenience of plug and the like.

One of the existing connectors needs to be crimped into a circuit board under external force, however, the connector is easily deformed under the force of external force, resulting in damage to the connector. In order to facilitate the fixing of the wire to the connector with high torque, a nut needs to be provided in the connector, however, signal distortion such as passive intermodulation occurs due to a gap between the nut and the connector, so that signal integrity is poor, and the connector is low in reliability due to the nut being very small, easy to drop and difficult to install.

Disclosure of utility model

The present utility model aims to solve at least one of the above technical problems.

According to an aspect of the present utility model, there is provided a connector comprising: a first fastener; and a housing, the first fastener being disposed on the housing to fasten a wire between the housing and the first fastener, the housing comprising: a sidewall; and a finger extending from one end of the sidewall; wherein the side wall is provided with a shoulder for withstanding an applied external force to crimp the finger into the circuit board, the height of the shoulder from the one end of the side wall being selected such that the housing does not deform during crimping.

According to one aspect of the utility model, the housing comprises: two said side walls opposite each other; and a top wall connected between two of said side walls; wherein the first fastener is disposed on and extends through the top wall.

According to one aspect of the utility model, the connector further comprises: a second fastener disposed between the two side walls below the top wall and cooperating with the first fastener to fasten the wire; and a shield disposed between the two side walls to at least partially wrap or fully wrap portions of the second fastener and the first fastener through the top wall with the housing such that there is no gap between the second fastener and the housing.

According to one aspect of the utility model, the shield is provided with: a recess at an end of the shield abutting the top wall for receiving the second fastener; and a receiving hole communicating with a bottom side of the recess for receiving a portion of the first fastener passing through the second fastener.

According to one aspect of the utility model, the two side walls are each provided with a connection hole, the shield being provided on its side face with a projection configured to be insertable into the connection holes when the shield is inserted into the housing in the insertion direction so that the shield is mounted in place such that the other end of the shield facing away from the top wall is spaced apart from the circuit board.

According to an aspect of the present utility model, the shield is further provided with an elastic arm extending from the main body of the shield toward the other end and movable in a direction orthogonal to the insertion direction, the projection being provided on the elastic arm.

According to one aspect of the utility model, the groove is configured in a bracket shape.

According to one aspect of the utility model, the two openings of the bracket shape are located on the same side of the shield as the protrusions, respectively.

According to one aspect of the utility model, the connector further comprises a washer, wherein the first fastener is configured as a bolt and the second fastener is configured as a nut, the washer resting under the head of the bolt to secure the wire between the housing and the washer.

According to another aspect of the present utility model, there is provided a connector assembly comprising: a bus; at least one pair of connectors electrically connected to one end of the bus; and at least one pair of mating connectors electrically connected to the other end of the bus; wherein each connector of the at least one pair of connectors and the at least one pair of mating connectors is a connector according to any one of the above aspects.

According to another aspect of the utility model, the at least one pair of connectors comprises: a first pair of connectors for transmitting control signals, a second pair of connectors for transmitting power signals, and a third pair of connectors for transmitting another power signal; and the at least one pair of mating connectors includes: a first pair of mating connectors for receiving the control signal, a second pair of mating connectors for receiving the power signal, and a third pair of mating connectors for receiving the other power signal.

According to another aspect of the present utility model, the bus is selected from one of a thick copper bar, a thin copper bar, and a cable.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present utility model and, together with the description, further serve to explain the principles of the utility model and to enable a person skilled in the pertinent art to make and use the embodiments described herein.

Fig. 1 is a perspective view of a connector crimped to a circuit board according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the connector shown in FIG. 1;

FIG. 3 is a front view of the connector shown in FIG. 1;

FIG. 4 is a side view of the connector shown in FIG. 1;

FIG. 5 is a cross-sectional view of the connector taken along line V-V of FIG. 1, showing the first fastener, the second fastener, and the shield assembled together;

FIG. 6 is a perspective view of the second fastener and shield of FIG. 2 assembled together;

FIG. 7 is a perspective view of the second fastener of FIG. 2 and a shield according to another embodiment of the present utility model assembled together;

fig. 8 is a perspective view of the individual shields of fig. 7; and

Fig. 9 is a perspective view of a connector assembly according to an embodiment of the present utility model.

Features of the present utility model will become more apparent in the following detailed description when taken in conjunction with the accompanying drawings, in which like reference numerals identify corresponding elements throughout. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements. The drawings provided throughout this application should not be construed as being drawn to scale unless otherwise indicated.

Detailed Description

The present utility model will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. In the following description, descriptions of well-known techniques are omitted so as not to unnecessarily obscure the concept of the present utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "comprising" as used herein indicates the presence of a feature, step, operation, but does not preclude the presence or addition of one or more other features.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a convention should be interpreted in accordance with the meaning of one of skill in the art having generally understood the convention (e.g., "a system having at least one of A, B and C" would include, but not be limited to, systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a formulation similar to at least one of "A, B or C, etc." is used, in general such a formulation should be interpreted in accordance with the ordinary understanding of one skilled in the art (e.g. "a system with at least one of A, B or C" would include but not be limited to systems with a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Referring to fig. 1-8, a connector 1000 according to an embodiment of the present utility model is shown.

The connector 1000 includes: a first fastener 100 and a housing 200 made of metal. The first fastener 100 is provided on the housing 200 to fasten a wire (see fig. 9, i.e., a wire connected to the bus 600) between the housing 200 and the first fastener 100.

The housing 200 includes: a side wall 210 and six fingers 220 extending from one end 211 of the side wall 210 toward the circuit board 2000. The circuit board 2000 is provided with a connection region 2100 and six through holes 2200 (see fig. 2) provided in the connection region. The side wall 210 is provided with shoulders 212 for receiving an external force applied to crimp six fingers 220 into corresponding through holes 2200 of the circuit board 2000 such that each finger 220 passes through the corresponding through hole 2200 and is exposed from the through hole 2200 (see fig. 3 to 5), and thus the wire is electrically connected to the circuit on the circuit board 2000 through the finger 220 of the case 200 and the through hole 2200 into which the finger 220 is inserted.

The height H (see fig. 2) of the shoulder 212 from the end 211 of the sidewall 210 (more specifically, the junction of the finger 220 and the sidewall 210) is selected such that the housing 200 does not deform during crimping, greatly improving the reliability of the connector 1000.

More specifically, the housing 200 includes: two such side walls 210 opposite to each other and a top wall 230 connected between the two such side walls 210.

The provision of the shoulder 212 prevents external force from being applied to the top wall 230 of the housing 200, greatly reduces the height of the force receiving portion of the housing 200 from the circuit board 2000, and effectively reduces or even eliminates the risk of deformation of the housing 200 and damage to the connector 1000 due to excessive external force applied to the housing 200 during crimping of the finger 220 into the through hole 2200 of the circuit board 2000. Depending on the expected magnitude of the external force, the height H of the shoulder 212 from the end 211 of the sidewall 210 may be adjustable, e.g., the value of the height H may be set smaller when the applied external force is larger and the value of the height H may be set larger when the applied external force is smaller, which greatly expands the applicable range of the connector 1000.

The first fastener 100 is disposed on the top wall 230 and extends through the top wall 230.

Referring to fig. 2, 5 to 8, the connector 1000 further includes: a second fastener 300, a shield 400, and a spacer 500.

A second fastener 300 is disposed between the two side walls 210 below the top wall 230 and cooperates with the first fastener 100 to fasten the wire. The first fastener 100 is configured as a bolt and the second fastener 300 is configured as a nut, the washer 500 resting under the head of the bolt to secure the wire between the top wall 230 of the housing 200 and the washer 500.

A shield 400 is disposed between the two side walls 210 to at least partially wrap or completely wrap the second fastener 300 and the portion of the first fastener 100 passing through the top wall 230 together with the housing 200 such that there is no gap between the second fastener 300 and the housing 200. The absence of a gap between the second fastener 300 and the housing 200 not only largely eliminates signal distortion such as passive intermodulation due to the gap, improves the signal integrity of the connector 1000, but also allows the second fastener 300 to be more securely mounted in the housing 200 without being easily dropped, further improving the reliability of the connector 1000.

Referring to fig. 2, 4 to 8, the shield 400 is provided with: a recess 410 and a receiving hole 420. A groove 410 configured as a bracket is located at an end 401 (i.e., upper end) of the shield 400 that abuts the top wall 230 for receiving the second fastener 300. A receiving hole 420 communicates with the bottom side 411 of the recess 410 for receiving a portion of the first fastener 100 passing through the second fastener 300. In the illustrated embodiment, opposite sides of the recess 410 are open (see fig. 2, 6 to 8), i.e., the bracket-shaped recess 410 has two openings to expose opposite sides of the second fastener 300 such that the exposed opposite sides of the second fastener 300 respectively abut against the opposite side walls 210, so that the second fastener 300 is completely enclosed by the two side walls 210, the top wall 230 and the shield 400 of the housing 200 together. However, the present utility model is not limited thereto, and the opposite sides of the recess 410 may be provided to be closed so that the shield 400 can wrap the second fastener 300 in the entire circumference of the second fastener 300. The recess 410 may also be provided in any suitable other shape that is capable of completely encasing the second fastener 300 with the housing 200.

Referring to fig. 1 to 3, the two sidewalls 210 are provided with connection holes 213, respectively. The shield 400 is provided at a side thereof with a protrusion 430, the protrusion 430 being configured to be able to be inserted into the connection hole 213 when the shield 400 is inserted into the housing 200 in an insertion direction D (i.e., a bottom-to-top direction in fig. 2) so that the shield 400 is mounted in place in the housing 200 and fixed in the housing 200 such that the other end 402 (i.e., a lower end) of the shield 400 facing away from the top wall 230 is spaced apart from the connection region 2100 of the circuit board 2000.

In the preferred embodiment of the utility model shown in fig. 2 and 6, the shield 400 is further provided with a resilient arm 440 extending from the body of the shield 400 towards the other end 402 and being movable in a direction orthogonal to the insertion direction D, the protrusion 430 being provided on the resilient arm 440. The provision of the resilient arms 440 greatly facilitates the mounting of the shield 400 in place in the housing 200 and the fixing in the housing 200. The two openings 412 of the bracket-shaped recess 410 are located on the same side of the shield 400 as the protrusion 430, respectively (see fig. 2, 6 to 8).

Referring to fig. 9, the present utility model also discloses a connector assembly 3000. The connector assembly 3000 includes: the bus 600, the first pair of connectors 700, the second pair of connectors 800, the third pair of connectors 900 electrically connected to one end of the bus 600, and the first pair of mating connectors 700', the second pair of mating connectors 800', the third pair of mating connectors 900' electrically connected to the other end of the bus 600. The bus 600 is selected from one of a thick copper bar, a thin copper bar, and a cable according to practical use. A fixing point 610 is provided on the main body of the bus 600 to fix the bus 600 to a corresponding position on the circuit board.

For clarity, only the portions of the circuit board that connect with the three pairs of connectors 700, 800, 900 and the three pairs of mating connectors 700', 800', 900' are shown in fig. 9.

Three pairs of connectors 700, 800, 900 and three pairs of mating connectors 700', 800', 900'

Each of which has exactly the same structure as the above-described connector 1000 and is correspondingly mounted to one of the connection areas 2100 on the circuit board 2000 such that the bus 600 is connected in a bridging manner between three pairs of connectors 700, 800, 900 and three pairs of mating connectors 700', 800', 900 '.

The first pair of connectors 700 is used to transmit control signals and the first pair of mating connectors 700' is used to receive the control signals.

The second pair of connectors 800 is used to transmit a power signal and the third pair of connectors 900 is used to transmit another power signal. The second pair of mating connectors 800 'is for receiving the power signal and the third pair of mating connectors 900' is for receiving the other power signal.

Thus, embodiments of the present utility model have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the components are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.

It should also be noted that in the embodiments of the present utility model, unless otherwise known, numerical parameters in the present specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present utility model. In particular, all numbers expressing dimensions, range conditions, and so forth, used in the specification and claims are to be understood as being modified in all instances by the term "about". In general, the meaning of expression is meant to include a variation of + -10% in some embodiments, a variation of + -5% in some embodiments, a variation of + -1% in some embodiments, and a variation of + -0.5% in some embodiments by a particular amount.

Those skilled in the art will appreciate that the features recited in the various embodiments of the utility model and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the utility model. In particular, the features recited in the various embodiments of the utility model and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the utility model. All such combinations and/or combinations fall within the scope of the utility model.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the utility model thereto, but to limit the utility model thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the utility model.

Claims (12)

1. A connector, comprising:

A first fastener; and

A housing, the first fastener disposed on the housing to secure a wire between the housing and the first fastener, the housing comprising:

A sidewall; and

A finger extending from one end of the sidewall;

Wherein the side wall is provided with a shoulder for withstanding an applied external force to crimp the finger into the circuit board, the height of the shoulder from the one end of the side wall being selected such that the housing does not deform during crimping.

2. The connector of claim 1, wherein the housing comprises:

Two said side walls opposite each other; and

A top wall connected between two of said side walls;

Wherein the first fastener is disposed on and extends through the top wall.

3. The connector of claim 2, further comprising:

A second fastener disposed between the two side walls below the top wall and cooperating with the first fastener to fasten the wire; and

A shield disposed between the two side walls to at least partially wrap or fully wrap portions of the second fastener and the first fastener through the top wall with the housing such that there is no gap between the second fastener and the housing.

4. A connector according to claim 3, wherein the shield is provided with:

A recess at an end of the shield abutting the top wall for receiving the second fastener; and

And a receiving hole communicating with a bottom side of the recess for receiving a portion of the first fastener passing through the second fastener.

5. The connector of claim 4, wherein the connector comprises,

The two side walls are respectively provided with a connecting hole,

The shield is provided with a protrusion on a side thereof, the protrusion being configured to be insertable into the connection hole when the shield is inserted into the housing in an insertion direction so that the shield is mounted in place such that the other end of the shield facing away from the top wall is spaced apart from the circuit board.

6. The connector according to claim 5, wherein the shield member is further provided with an elastic arm extending from a main body of the shield member toward the other end and movable in a direction orthogonal to the insertion direction, the projection being provided on the elastic arm.

7. The connector according to claim 5 or 6, wherein,

The groove is configured in a bracket shape.

8. The connector of claim 7, wherein the connector comprises,

The two openings of the bracket shape are located on the same side of the shield as the protrusions, respectively.

9. The connector of any one of claims 3 to 6 and 8, further comprising a spacer, wherein the first fastener is configured as a bolt and the second fastener is configured as a nut, the spacer abutting under a head of the bolt to secure the wire between the housing and the spacer.

10. A connector assembly, comprising:

A bus;

at least one pair of connectors electrically connected to one end of the bus; and

At least one pair of mating connectors electrically connected to the other end of the bus;

Wherein each connector of the at least one pair of connectors and the at least one pair of mating connectors is a connector according to any one of claims 1 to 9.

11. The connector assembly of claim 10, wherein the connector assembly comprises,

The at least one pair of connectors includes: a first pair of connectors for transmitting control signals, a second pair of connectors for transmitting power signals, and a third pair of connectors for transmitting another power signal; and

The at least one pair of mating connectors includes: a first pair of mating connectors for receiving the control signal, a second pair of mating connectors for receiving the power signal, and a third pair of mating connectors for receiving the other power signal.

12. The connector assembly of claim 10 or 11, wherein the bus is selected from one of a thick copper bar, a thin copper bar, and a cable.