Structure for improving sensor accuracy
By designing a structure including a body, elastic component and clamping component, the displacement problem of the sensor in the open-loop core is solved, measurement accuracy is improved and electromagnetic compatibility is improved.
Patent Information
- Application Number
- CN202310945113.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-28
- Publication Date
- 2025-02-14
AI Technical Summary
In the prior art, the displacement of the sensor in the open-loop core results in inaccurate measurement results of the magnetic field and current.
A structure is designed, which includes a body extending in a horizontal and transverse direction, with first and second ends spaced apart on the body, respectively connected to the first and second elastic members and clamping members for fixing Magnetic sensor and ground the open loop core when compressed.
It effectively reduces the displacement of the magnetic sensor in the open-loop magnetic core, improves the accuracy of magnetic field and current measurement, and improves electromagnetic compatibility and electromagnetic interference performance through grounding.
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Figure CN119438662A_ABST
Abstract
Description
Technical Field
[0001] In some examples, the present application generally relates to a structure. More specifically, in some examples, the present application relates to a structure for fixing a sensor. Background Art
[0002] Sensors are often used to determine the level of current passing through an open-loop magnetic core. For example, a sensor can determine the level of current by measuring a magnetic field. The inventors have discovered many deficiencies and problems with the prior art in this field. For example, the prior art may be shifted, resulting in less accurate measurements of the amount of magnetic field and / or current. Through applied effort, creativity and innovation, many of these discovered deficiencies and problems have been resolved by developing solutions configured according to embodiments of the present disclosure, and many examples of embodiments of the present disclosure are described in detail herein. Summary of the invention
[0003] In an exemplary embodiment, a structure for reducing displacement of a magnetic sensor in an open-loop magnetic core is provided. The exemplary structure includes a body extending in a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H, wherein the body includes a first end and a second end spaced apart along the horizontal direction H. The exemplary structure includes a first elastic member connected to the first end, wherein the first elastic member extends in a direction away from the body, and wherein the first elastic member includes an outer surface, the outer surface defining the farthest point on the first elastic member from the body along the horizontal direction H. The exemplary structure includes a second elastic member connected to the second end, wherein the second elastic member extends in a direction away from the body, and wherein the second elastic member includes an outer surface, the outer surface defining the farthest point on the second elastic member from the body along the horizontal direction H. The exemplary structure includes a first clamping member connected to the body between the first end and the second end. The structure includes a second clamping member connected to the body between the first end and the second end. In an exemplary embodiment, the first clamping member and the second clamping member are configured to fix the magnetic sensor. In an exemplary embodiment, the structure is capable of compressing in response to the application of a force applied to the outer surface of the first elastic member and the outer surface of the second elastic member.
[0004] In an exemplary embodiment, two or more clamping components are configured to secure the Hall component.
[0005] In an exemplary embodiment, the structure is at least partially made of metal.
[0006] In an exemplary embodiment, the metal includes copper.
[0007] In an exemplary embodiment, the structure is configured to ground the open-loop magnetic core when compressed between a first side of the open-loop magnetic core and a second side of the open-loop magnetic core.
[0008] In an exemplary embodiment, at least one of the first elastic member and the second elastic member is curved in shape.
[0009] In an exemplary embodiment, at least one of the first elastic member and the second elastic member includes a first section close to the body and a second section away from the body, wherein the first section is wider than the second section.
[0010] In an exemplary embodiment, the body defines a bore, wherein the body is configured to be coupled to a housing component extending through the bore.
[0011] In an exemplary embodiment, at least one of the first clamping member or the second clamping member includes a first section proximal to the body and a second section distal to the body, wherein the first section has a uniform width, and wherein the second section has a variable width.
[0012] In an exemplary embodiment, the first clamping member and the second clamping member are configured to secure the magnetic sensor when the structure is compressed.
[0013] In an exemplary embodiment, an assembly is provided. An exemplary assembly includes an upper housing component. An exemplary assembly includes a lower housing component. An exemplary assembly includes a split-ring magnetic core. An exemplary assembly includes a magnetic sensor. An exemplary assembly includes a structure. The structure of the exemplary assembly includes a body extending in a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H, wherein the body includes a first end and a second end spaced apart along the horizontal direction H. The structure of the exemplary assembly includes a first elastic member connected to the first end, wherein the first elastic member extends in a direction away from the body, and wherein the first elastic member includes an outer surface, the outer surface defining a point on the first elastic member that is farthest from the body along the horizontal direction H. The structure of the exemplary assembly includes a second elastic member connected to the second end, wherein the second elastic member extends in a direction away from the body, and wherein the second elastic member includes an outer surface, the outer surface defining a point on the second elastic member that is farthest from the body along the horizontal direction H. The structure of the exemplary assembly includes a first clamping member connected to the body between the first end and the second end. The structure includes a second clamping member connected to the body between the first end and the second end. In an exemplary embodiment, the first clamping member and the second clamping member are configured to fix the magnetic sensor. In an exemplary embodiment, a distance D1 between an outer surface of the first elastic member and an outer surface of the second elastic member is longer than a distance D2 defining a length between a first face of the open-loop magnetic core and a second face of the open-loop magnetic core. In an exemplary embodiment, the structure is configured to be compressed between the first face of the open-loop magnetic core and the second face of the open-loop magnetic core by contacting the outer surface of the first elastic member and the outer surface of the second elastic member.
[0014] In an exemplary embodiment, the magnetic sensor includes a Hall element.
[0015] In an exemplary embodiment, the structure is at least partially made of metal.
[0016] In an exemplary embodiment, the metal includes copper.
[0017] In an exemplary embodiment, the structure is configured to ground the open-loop magnetic core when compressed between a first side of the open-loop magnetic core and a second side of the open-loop magnetic core.
[0018] In an exemplary embodiment, at least one of the first elastic member and the second elastic member is curved in shape.
[0019] In an exemplary embodiment, at least one of the first elastic member and the second elastic member includes a first section close to the body and a second section away from the body, wherein the first section is wider than the second section.
[0020] In an exemplary embodiment, the body defines a bore, wherein the upper housing component is configured to be coupled to the body and extend through the bore.
[0021] In an exemplary embodiment, at least one of the two or more clamping members includes a first section proximal to the body and a second section distal to the body, wherein the first section has a uniform width, and wherein the second section has a variable width.
[0022] In an exemplary embodiment, the distance between the first face of the open-loop magnetic core and the magnetic sensor is depicted as distance D3, wherein distance D3 is maintained when the open-loop magnetic core is displaced. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Thus, having generally described above certain exemplary embodiments of the present disclosure, non-limiting and non-exhaustive embodiments of the present disclosure are described with reference to the following drawings, which are not necessarily drawn to scale, and in which, unless otherwise specified, the same reference numerals refer to the same components in the various views. The components shown in the figures may or may not be present in certain embodiments described herein. Some embodiments may include fewer (or more) components than those shown in the figures.
[0024] Figure 1 A perspective view of a structure according to an exemplary embodiment is provided.
[0025] Figure 2 A perspective view of a structure compressed between a first side of a split-loop magnetic core and a second side of the split-loop magnetic core is provided according to an exemplary embodiment.
[0026] Figure 3 An elevation view of a structure that secures a magnetic sensor between a first side of a split-loop magnetic core and a second side of the split-loop magnetic core is provided in accordance with an exemplary embodiment.
[0027] Figure 4A-4B An elevation view of a structure that secures a magnetic sensor between a first side of a split-loop magnetic core and a second side of the split-loop magnetic core when the magnetic core moves position is provided in accordance with an exemplary embodiment.
[0028] Figure 5 An exploded view of an assembly according to an exemplary embodiment is provided.
[0029] Figure 6 Example installation scenarios of components according to exemplary embodiments are provided. DETAILED DESCRIPTION
[0030] One or more embodiments are now fully described with reference to the accompanying drawings, wherein the same reference numerals are used to represent the same elements throughout the accompanying drawings, and wherein some but not all embodiments of the present invention are shown. In the following description, for the purpose of explanation, many specific details are set forth in order to provide a thorough understanding of the various embodiments. However, it is apparent that the various embodiments can be practiced without these specific details. It should be understood that some but not all embodiments are shown and described herein. In fact, the embodiments can be implemented in many different forms, and therefore the present disclosure should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided in order for the present disclosure to meet applicable legal requirements.
[0031] As used herein, the term "exemplary" means used as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as being preferred or advantageous over other aspects or designs. On the contrary, the use of the word "exemplary" is intended to present concepts in a concrete manner. In addition, although a particular feature may be disclosed with respect to only one of several embodiments, this feature may be combined with one or more other features of other embodiments, as may be necessary and advantageous for any given or specific application. In addition, with respect to the use of the terms "include" and "comprises" and their variants in the detailed description or claims, these terms are intended to be inclusive in a manner similar to the term "comprises".
[0032] As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise or clear from the context, "X employs A or B" is intended to mean any of the natural inclusive permutations. That is, if X employs A, X employs B, or X employs both A and B, then "X employs A or B" is satisfied under any of the foregoing instances. Furthermore, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from the context to contemplate a singular form.
[0033] As used herein, unless otherwise specified herein, the terms "coupled," "fixed," "attached to," and the like refer to direct coupling, fixing, or attachment, as well as indirect coupling, fixing, or attachment through one or more intermediate components or features. As used herein, coupling may be achieved by welding one component to another component.
[0034] As used herein, the term "directly positioned on..." means that a first component is positioned on a second component such that they are in contact. Similarly, as used herein, the term "directly positioned between..." means that a first component is positioned between a second component and a third component such that the first component is in contact with both the second component and the third component. In contrast, a first component "positioned between a second component and a third component" may or may not be in contact with the second component and the third component. In addition, a first component "positioned between a second component and a third component" is positioned such that other intervening components other than the first component may exist between the second component and the third component.
[0035] In some examples, it is desirable that the magnetic sensor be positioned as centrally as possible between the two faces of the open-loop magnetic core. For example, a current may flow through the open-loop magnetic core, and the magnetic sensor positioned centrally between the two faces of the open-loop magnetic core may be able to accurately read the magnetic field caused by the current. In contrast, a sensor positioned closer to one face or the other may not be able to accurately read the magnetic field caused by the current. In addition, in some examples, it may be desirable to ground the open-loop magnetic core in order to, for example, improve electromagnetic compatibility or electromagnetic interference performance. Embodiments of the present disclosure include, but are not limited to, the following structures, which in some examples are configured to position the sensor between the two faces of the open-loop magnetic core. Embodiments of the present disclosure include, but are not limited to, the following structures, which in some examples are configured to remain positioned between the two faces of the open-loop magnetic core when the open-loop magnetic core moves position.
[0036] Reference now Figure 1 , an exemplary structure 100 is provided. In one or more embodiments, the structure 100 is configured to secure or otherwise hold a magnetic sensor between two faces of an open-loop magnetic core.
[0037] In one or more embodiments, the structure includes a body 110. In one or more embodiments, the body 110 is a rectangular body. In one or more embodiments, the body 110 is a square shape. In one or more embodiments, a variety of shapes can be used depending on, for example, the length between two faces of the open-loop magnetic core. In one or more embodiments, the body 110 extends in a horizontal direction H and a lateral direction T orthogonal to the horizontal direction H.
[0038] In one or more embodiments, the body 110 has a first end 115 and a second end 120 spaced apart in a horizontal direction H. In one or more embodiments, the distance between the first end 115 and the second end 120 may be less than the length between the two faces of the open-loop magnetic core. In one or more embodiments, the body 110 is at least partially made of metal. For example, the body 110 may include copper. In one or more embodiments, the body 110 is at least partially made of a plastic material. In one or more embodiments, the body 110 is at least partially made of an elastic material. In one or more embodiments, the body 110 is configured to maintain a structure when the first elastic member 130 and / or the second elastic member 145 are, for example, compressed between the two faces of the open-loop magnetic core. In one or more embodiments, the distance between the first end 115 and the second end 120 is between 1 mm and 4 mm. However, in alternative embodiments, there may be a greater or lesser distance between the first end 115 and the second end 120.
[0039] In one or more embodiments, the first end 115 is configured to couple the body 110 with a first resilient member 130 extending away from the body 110. In one or more embodiments, the first end 115 includes a chamfered edge between the body 110 and the first resilient member 130. In one or more embodiments, the first end 115 includes an edge between the body 110 and the first resilient member 130. In one or more embodiments, the first end 115 creates an angle between the body 110 and the first resilient member 130. In one or more embodiments, the angle between the first resilient member 130 and the body 110 at the first end 115 is between 45 degrees and 135 degrees. In alternative embodiments, the angle between the first resilient member 130 and the body 110 at the first end 115 is less than 45 degrees or greater than 135 degrees.
[0040] In one or more embodiments, the second end 120 is configured to couple the body 110 with a second elastic member 145 extending away from the body 110. In one or more embodiments, the second end 120 includes a chamfered edge between the body 110 and the second elastic member 145. In one or more embodiments, the second end 120 includes an edge between the body 110 and the second elastic member 145. In one or more embodiments, the second end 120 creates an angle between the body 110 and the second elastic member 145. In one or more embodiments, the angle between the second elastic member 145 and the body 110 at the second end 120 is 90 degrees. In one or more embodiments, the angle between the body 110 and the second elastic member 145 at the second end 120 is between 45 degrees and 135 degrees. In alternative embodiments, the angle between the first elastic member 130 and the body 110 at the first end 115 is less than 45 degrees or greater than 135 degrees.
[0041] In one or more embodiments, the body 110 defines a hole 125. In one or more embodiments, the body 110 defines a hole 125 that extends through the body 110. In one or more alternative embodiments, the body 110 defines a hole 125 that extends partially through the body 110. In one or more embodiments, the body 110 defines a hole 125 having a rectangular shape. In one or more embodiments, the body 110 defines a hole 125 that can be any of a variety of other shapes, including but not limited to circular, square, triangular, pentagonal, hexagonal, etc. In one or more embodiments, the body 110 is configured to be coupled to a housing component that extends through the hole 125. For example, a portion of the top housing component and / or the bottom housing component may extend through the hole 125 and connect to the body 110. In one or more embodiments, the top housing component is coupled to the bottom housing component through the hole 125.
[0042] In one or more embodiments, a first elastic member 130 is provided. In one or more embodiments, the first elastic member 130 has a curved shape. In one or more embodiments, the first elastic member includes a first section 135 close to the main body 110 and a second section 140 away from the main body 110. In one or more embodiments, the first elastic member 130 extends in a direction away from the main body 110. For example, in an embodiment in which the main body 110 extends along a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H between the first end 115 and the second end 120, the first section 135 of the first elastic member 130 can be configured to extend along a vertical direction V orthogonal to the horizontal direction H. In one or more embodiments, the first section 135 can extend, for example, within 15 degrees of the vertical direction V. In an alternative embodiment, the first section 135 of the first elastic member 130 can extend away from the main body 110 in a direction closer to the horizontal direction H, for example, within 75 degrees of the vertical direction V. In one or more embodiments, the second section 140 of the first elastic member 130 may be bent outward from the body 110 in at least one of the horizontal direction H and the vertical direction V, and then bend back toward the body 110. In one or more embodiments, the first elastic member 130 includes an outer surface 175, which defines the farthest point on the first elastic member 130 from the body 110 along the horizontal direction H. In one or more embodiments, when the first elastic member 130 is compressed, the outer surface 175 moves closer to the body 110 in the horizontal direction. For example, the outer surface 175 can be compressed closer to the body 110 between 1% and 10%. In one or more embodiments, the outer surface 175 can be compressed closer to the body 110 by less than 1% or more than 10%. In one or more embodiments, the deformation of the first elastic member 130 is within the elastic deformation range.
[0043] In one or more embodiments, the first section 135 of the first elastic member 130 is wider than the second section 140 of the first elastic member 130. In one or more embodiments, the first elastic member 130 consists of only one section. In one or more embodiments, the first elastic member 130 consists of two or more sections. In one or more embodiments, the first section 135 of the first elastic member 130 has less flexibility than the second section 140 of the first elastic member 130. In an alternative embodiment, the first section 135 of the first elastic member 130 has equal or greater flexibility than the second section 140 of the first elastic member 130. In one or more embodiments, the first section 135 of the first elastic member 130 is made of a different material than the second section 140 of the first elastic member 130. In an alternative embodiment, the first section 135 of the first elastic member 130 and the second section 140 of the first elastic member 130 are made of the same material.
[0044] In one or more embodiments, the curved shape of the first resilient member 130 is configured to bend when compressed.For example, the first resilient member 130 may be compressed against a face of the split-loop magnetic core.
[0045] In one or more embodiments, the first elastic member 130 is at least partially made of an elastic material. For example, the first elastic member 130 may be at least partially made of rubber. In one or more embodiments, the first elastic member 130 is at least partially made of metal. For example, the first elastic member 130 may be at least partially made of copper. In one or more embodiments in which the first elastic member 130 is at least partially made of metal, the structure 100 may serve as a ground between the two faces of the open-loop magnetic core. This can lead to improvements in, for example, electromagnetic compatibility and / or electromagnetic interference performance. In one or more alternative embodiments, the first elastic member 130 may be at least partially made of plastic.
[0046] In one or more embodiments, a second elastic member 145 is provided. In one or more embodiments, the second elastic member 145 is curved. In one or more embodiments, the first elastic member includes a first section 150 close to the main body 110 and a second section 155 away from the main body 110. In one or more embodiments, the second elastic member 145 extends in a direction away from the main body 110. For example, in an embodiment in which the main body 110 extends along a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H between the first end 115 and the second end 120, the first section 150 of the second elastic member 145 can be configured to extend along a vertical direction V orthogonal to the horizontal direction H. In one or more embodiments, the first section 150 can be bent and / or extended, for example, within 15 degrees of the vertical direction V. In an alternative embodiment, the first section 150 of the second elastic member 145 can be bent and / or extended away from the main body 110 in a direction closer to the horizontal direction H, for example, within 75 degrees of the vertical direction V. In one or more embodiments, the second section 155 of the second elastic member 145 may be bent outward from the body 110 in at least one of the horizontal direction H and the vertical direction V, and then bend back toward the body 110. In one or more embodiments, the second elastic member 145 includes an outer surface 180, which defines the farthest point on the second elastic member 145 from the body 110 in the horizontal direction H. In one or more embodiments, when the second elastic member 145 is compressed, the outer surface 180 moves closer to the body 110 in the horizontal direction. For example, the outer surface 180 can be compressed closer to the body 110 between 1% and 10%. In one or more embodiments, the outer surface 180 can be compressed closer to the body 110 by less than 1% or more than 10%. In one or more embodiments, the deformation of the second elastic member 145 is within the elastic deformation range.
[0047] In one or more embodiments, the first section 150 of the second elastic member 145 is wider than the second section 155 of the second elastic member 145. In one or more embodiments, the second elastic member 145 consists of only one section. In one or more embodiments, the second elastic member 145 consists of two or more sections. In one or more embodiments, the first section 150 of the second elastic member 145 has less flexibility than the second section 155 of the second elastic member 145. In an alternative embodiment, the first section 150 of the second elastic member 145 has equal or greater flexibility than the second section 155 of the second elastic member 145. In one or more embodiments, the first section 150 of the second elastic member 145 is made of a different material than the second section 155 of the first elastic member 150. In an alternative embodiment, the first section 150 and the second section 155 of the second elastic member 145 are made of the same material.
[0048] In one or more embodiments, the curved shape of the second resilient member 145 is configured to bend when compressed.For example, the second resilient member 145 can be compressed against a face of the split-loop magnetic core.
[0049] In one or more embodiments, the second elastic member 145 is at least partially made of an elastic material. For example, the second elastic member 145 may be at least partially made of rubber. In one or more embodiments, the second elastic member 145 is at least partially made of metal. For example, the second elastic member 145 may be at least partially made of copper. In one or more embodiments in which the first elastic member 130 is at least partially made of metal, the structure 100 may serve as a ground between the two faces of the open-loop magnetic core. This can lead to improvements in, for example, electromagnetic compatibility and / or electromagnetic interference. In one or more alternative embodiments, the second elastic member 145 may be at least partially made of plastic.
[0050] In one or more embodiments, a distance D1 is defined between an outer surface 175 of the first elastic member 130 and an outer surface 180 of the second elastic member 145. In one or more embodiments, the distance D1 is between 3 mm and 10 mm. In alternative embodiments, the distance D1 may be less than 3 mm or greater than 10 mm. In one or more embodiments, the structure 100 is configured to be compressed within two faces defined by the open-loop magnetic core. In one or more embodiments, when the distance between these faces defines a distance D2 that is less than the distance D1, the structure 100 is compressed by these faces of the open-loop magnetic core. In one or more embodiments, the first elastic member and the second elastic member are compressed so that the structure fits into the space between these faces spanning the distance D2. In one or more embodiments in which the structure 100 is compressed between, for example, two faces of the open-loop magnetic core, the distance D1 between the outer surface 175 and the outer surface 180 can be reduced. For example, the distance D1 can be reduced between 1% and 10%. In one or more embodiments, the distance D1 can be reduced by less than 1% or greater than 10%. In one or more embodiments, the distance D1 can be reduced by an amount within the elastic deformation range of the structure 100.
[0051] In one or more embodiments, the structure 100 includes a first clamping member 160. In one or more embodiments, the first clamping member 160 is connected to the body between the first end 115 and the second end 120. In one or more embodiments, the first clamping member 160 is configured to fix a sensor. In one or more embodiments, the first clamping member 160 can fix the sensor against the second clamping member 185. For example, the first clamping member 160 can be configured to fix a magnetic sensor. In one or more embodiments, the first clamping member 160 can be configured to fix a current sensor. In one or more embodiments, the first clamping member 160 can be configured to fix a circuit board. In one or more embodiments, the circuit board can include a Hall component. In one or more embodiments, the circuit board can include an output pin. In one or more embodiments, the first clamping member 160 can be configured to fix an anisotropic magnetoresistive effect sensor. In one or more embodiments, the first clamping member 160 can be configured to fix a giant magnetoresistive effect sensor. In one or more embodiments, the first clamping member 160 can be configured to fix a tunnel magnetoresistive effect sensor.
[0052] In one or more embodiments, the first clamping member 160 is made of the same material as the body 110. In one or more embodiments, the first clamping member 160 is at least partially made of metal. In one or more embodiments, the first clamping member 160 is at least partially made of copper. In one or more embodiments, the first clamping member 160 is at least partially made of plastic.
[0053] In one or more embodiments, the first clamping member 160 includes a first section 165 close to the body 110 and a second section 170 away from the body 110. In one or more embodiments, the first section 165 has a uniform width, for example, in the transverse direction T. In one or more embodiments, the second section 170 has a variable width, for example, in the transverse direction T. In one or more embodiments, the first section 165 and the second section 170 of the first clamping member 160 may be made of different materials. In one or more alternative embodiments, the first section 165 and the second section 170 may be made of the same material. In one or more embodiments, the first clamping member 160 has only one section. In one or more embodiments, the first clamping member 160 having a single section may have a uniform width. In an alternative embodiment, the first clamping member 160 having a single section may have a variable width.
[0054] In one or more embodiments, the structure 100 includes a second clamping member 185. In one or more embodiments, the second clamping member 185 is connected to the body between the first end 115 and the second end 120. In one or more embodiments, the second clamping member 185 is configured to fix a sensor. In one or more embodiments, the second clamping member 185 can fix the sensor against the first clamping member 160. For example, the second clamping member 185 can be configured to fix a magnetic sensor. In one or more embodiments, the second clamping member 185 can be configured to fix a current sensor. In one or more embodiments, the second clamping member 185 can be configured to fix a circuit board. In one or more embodiments, the circuit board can include a Hall component. In one or more embodiments, the circuit board can include an output pin. In one or more embodiments, the second clamping member 185 can be configured to fix an anisotropic magnetoresistive effect sensor. In one or more embodiments, the second clamping member 185 can be configured to fix a giant magnetoresistive effect sensor. In one or more embodiments, the second clamping member 185 can be configured to fix a tunnel magnetoresistive effect sensor.
[0055] In one or more embodiments, the second clamping member 185 is made of the same material as the body 110. In one or more embodiments, the second clamping member 185 is at least partially made of metal. In one or more embodiments, the second clamping member 185 is at least partially made of copper. In one or more embodiments, the second clamping member 185 is at least partially made of plastic.
[0056] In one or more embodiments, the second clamping member 185 includes a first section 195 close to the body 110 and a second section 190 away from the body 110. In one or more embodiments, the first section 195 has a uniform width, for example, in the transverse direction T. In one or more embodiments, the second section 190 has a variable width, for example, in the transverse direction T. In one or more embodiments, the first section 195 and the second section 190 of the second clamping member 185 may be made of different materials. In one or more alternative embodiments, the first section 195 and the second section 190 may be made of the same material. In one or more embodiments, the second clamping member 185 has only one section. In one or more embodiments, the second clamping member 185 having a single section may have a uniform width. In an alternative embodiment, the second clamping member 185 having a single section may have a variable width.
[0057] In one or more embodiments, the first clamping member 160 and the second clamping member 185 are configured to fix the sensor by compressing the sensor between the first clamping member and the second clamping member. In one or more embodiments, the sensor is held between the first sections 165 and 195 of uniform width and above the second sections 170 and 190 of variable width. In one or more embodiments, the first clamping member 160 and the second clamping member 185 are configured to fix the magnetic sensor. In one or more embodiments, the first clamping member 160 and the second clamping member 185 are configured to fix the anisotropic magnetoresistive effect sensor. In one or more embodiments, the first clamping member 160 and the second clamping member 185 are configured to fix the giant magnetoresistive effect sensor. In one or more embodiments, the first clamping member 160 and the second clamping member 185 are configured to fix the tunnel magnetoresistive effect sensor. Although two clamping members are shown, in alternative embodiments, less than two or more than two clamping members may be used to fix the sensor.
[0058] Now go to Figure 2 , showing a perspective view of the structure 100 compressed in the open-loop magnetic core 210. In one or more embodiments, the structure 100 is placed between the face 220 and the face 230 of the open-loop magnetic core 210. In one or more embodiments, the distance between the face 220 and the face 230 of the open-loop magnetic core 210 is defined as D2. In one or more embodiments, the distance D1 is longer than the distance D2. In one or more embodiments, when the structure is not compressed between the face 220 and the face 230 of the open-loop magnetic core 210, the distance D1 is longer than the distance D2. In one or more embodiments, when the structure 100 is placed between the face 220 and the face 230, the distance D1 between the outer surfaces 175 and 180 of the structure 100 is reduced to the distance D2. In one or more embodiments, the compressive force from the face 220 and the face 230 compresses the structure 100 so that it remains stationary between the face 220 and the face 230. In one or more embodiments, structure 100 acts as a ground for open-loop magnetic core 210 , resulting in improved electromagnetic compatibility and / or electromagnetic interference performance.
[0059] Now go to Figure 3, provides a front view of an assembly 300, which includes a structure 100 fixed between a first side 220 and a second side 230 of an open-loop magnetic core 210. In one or more embodiments, the assembly 300 also includes a housing component 310. In one or more embodiments, the housing component 310 is configured to cover the open-loop magnetic core 210. In one or more embodiments, the housing component 310 can be, for example, part of an electric vehicle. In one or more embodiments, the housing 310 is made of a plastic material. In alternative embodiments, the housing 310 can be made of a variety of other materials. In one or more embodiments, the housing component 310 is electrically insulated from current flowing through the open-loop magnetic core 210.
[0060] In one or more embodiments, the housing 310 is secured to the open-loop magnetic core 210. In one or more embodiments, the housing 310 is secured to the open-loop magnetic core 210 using glue 320. In one or more embodiments, other means may be used to secure the housing 310 to the open-loop magnetic core 210. For example, the housing 310 may be secured to the open-loop magnetic core 210 using adhesives, compression, or other attachment means.
[0061] In one or more embodiments, the clamping member 160 of the structure 400 fixes the sensor 350. In one or more embodiments, the sensor 350. In one or more embodiments, the sensor 350 is a current sensor. In one or more embodiments, the sensor 350 is a magnetic sensor. In one or more embodiments, the sensor 330 includes a circuit board 320, an output pin 330, and / or a Hall component 340. In one or more embodiments, when current flows through the open-loop magnetic core 210, the Hall component 340 detects the strength of the magnetic field generated by the open-loop magnetic core 210. In one or more embodiments, the Hall component 340 is most accurate when it is placed in the center between the first face 220 and the second face 230. In one or more embodiments, the output pin 330 indicates the strength of the magnetic field by generating a voltage. In one or more embodiments, the sensor 350 can determine anisotropic magnetoresistance effect. In one or more embodiments, the sensor 350 can determine giant magnetoresistance effect. In one or more embodiments, the sensor 350 can determine tunnel magnetoresistance effect.
[0062] Now go to Figure 4A , an illustration 410 is provided where the open-loop magnetic core 210 is displaced to the left within the housing 310. This may occur for a number of exemplary reasons, such as wear of the glue 320. In one or more embodiments, the distance D3 defines the distance between the circuit board 320 of the sensor 350 and the first face 220 of the open-loop magnetic core 210. In one or more embodiments, the structure 100, and therefore the sensor 350, moves with the open-loop magnetic core 210 such that the distance D3 is maintained.
[0063] Now go to Figure 4B , providing an illustration 420 of the split-ring core shifted to the right within the housing 310. In one or more embodiments, the distance D3 is maintained at Figure 4A In one or more embodiments, the clamping member 160 continues to secure the sensor 350 at the same distance from the first face 220 and the second face 230. This can provide exemplary technical advantages by allowing the sensor 350 to give consistent readings of the magnetic field strength generated by the open-loop magnetic core 210. In one or more embodiments, when the sensor member 350 is centrally positioned between the first face 220 and the second face 230 of the open-loop magnetic core 210, the readings from the Hall element 340 remain accurate.
[0064] Now go to Figure 5 , an exploded view of assembly 500 is provided. In one or more embodiments, the assembly includes structure 100, sensor 350, open-loop magnetic core 210, upper housing component 520, and lower housing component 510. In one or more embodiments, assembly 500 can be used in various applications, such as for electric vehicles. In other embodiments, assembly 500 can be used to read any current level through holes 530-540 in various situations.
[0065] In one or more embodiments, the structure 100 is configured to fix the sensor 350 within the open-loop magnetic core 210. In one or more embodiments, the open-loop magnetic core 210 is covered by the upper housing component 520. In one or more embodiments, the upper housing component 520 is also configured to extend through the hole 125 and couple with the body 110 of the structure 100. In one or more embodiments, the upper housing component 520 is made of a plastic material. In one or more embodiments, the upper housing component 520 can be made of different materials. In one or more embodiments, the hole 530 of the upper housing component 520 can have a current flowing through it. In one or more embodiments, the current will cause the open-loop magnetic core 210 to generate a magnetic field. In one or more embodiments, the strength of the magnetic field is detected by the sensor 350, which is fixed by the structure 100. In one or more embodiments where the structure 100 is at least partially made of metal, the open-loop magnetic core 210 is grounded, thereby improving electromagnetic compatibility and / or electromagnetic interference performance. In one or more embodiments, the upper housing component 520 is configured to couple with the lower housing component 520.
[0066] In one or more embodiments, the lower housing member 510 is configured to cover the split-loop magnetic core 210. In one or more embodiments, the lower housing member 510 is configured to couple with the upper housing member 520. In one or more embodiments, the lower housing member 510 is configured to extend through the hole 125 and couple with the body 110 of the structure 100. In one or more embodiments, the lower housing member 510 is configured to couple with the upper housing member 520 through the hole 125. In one or more embodiments, current can flow through the hole 540. In one or more embodiments, enclosing the assembly 500 with the lower housing member 510 and the upper housing member 520 provides structural integrity to the assembly 500 and allows current to flow through the holes 530 and 540. In one or more embodiments, the structure 100 moves the sensor 350 in the event that the split-loop magnetic core 210 moves relative to the upper housing member 520 and / or the lower housing member 510 so that the relative distance between the sensor 350 and the face of the split-loop magnetic core 210 remains constant.
[0067] Now turn to Figure 6 , an exemplary installation scenario of the assembly 500 is provided according to an exemplary embodiment. In one or more embodiments, the lower housing component 510 and the upper housing component 520 are coupled together and surround the structure 100, the sensor 350, and the open-loop magnetic core 210. In one or more embodiments, the bus bar 610 passes through the hole formed by the holes 530 and 540. In one or more embodiments, the bus bar 610 has a current flowing through it. In one or more embodiments, when the current flows through the bus bar 610, a magnetic field is generated by the open-loop magnetic core 210. In one or more embodiments, the sensor 350 can accurately read the magnetic field when it is fixed by the structure 100.
[0068] in conclusion
[0069] The above description of various embodiments of the present disclosure and the corresponding drawings and the contents described in the abstract are described herein for illustrative purposes and are not intended to be exhaustive or to limit the disclosed embodiments to the exact form disclosed. However, it should be understood that it will be appreciated by those of ordinary skill in the art that other embodiments with modifications, substitutions, combinations and additions can be implemented for performing the same, similar, alternative or substituted functions of the disclosed subject matter, and therefore the other embodiments are considered to be within the scope of the present disclosure. Therefore, the disclosed subject matter should not be limited to any single embodiment described herein, but should be interpreted according to the breadth and scope of the attached claims. In addition, although the foregoing description and the associated drawings describe exemplary embodiments in the context of certain exemplary combinations of elements and / or functions, it should be understood that different combinations of elements and / or functions can be provided by alternative embodiments without departing from the scope of the attached claims. In this regard, for example, combinations of elements and / or functions different from those explicitly described above are also expected to be set forth in some of the attached claims. Although specific terms are used herein, they are used only in a general and descriptive sense, not for the purpose of limitation.
Claims
1. A structure for reducing displacement of a magnetic sensor in an open-loop magnetic core, comprising: a main body extending in a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H, wherein the main body includes a first end and a second end spaced apart along the horizontal direction H; a first elastic member connected to the first end, wherein the first elastic member extends in a direction away from the body, and wherein the first elastic member includes an outer surface defining a point on the first elastic member that is farthest from the body along the horizontal direction H; a second elastic member connected to the second end, wherein the second elastic member extends in a direction away from the body, and wherein the second elastic member includes an outer surface defining a point on the second elastic member that is farthest from the body along the horizontal direction H; a first clamping member connected to the body between the first end and the second end; and a second clamping member connected to the body between the first end and the second end, wherein the first clamping member and the second clamping member are configured to fix the magnetic sensor, and Wherein the structure is compressible in response to application of a force applied to an outer surface of the first resilient component and an outer surface of the second resilient component.
2. The structure of claim 1, wherein: The two or more clamping components are configured to secure the Hall component.
3. The structure of claim 1, wherein: The structure is at least partially made of metal.
4. The structure of claim 3, wherein: The metal includes copper.
5. The structure of claim 3, wherein: The structure is configured to ground the open-loop magnetic core when compressed between the first side of the open-loop magnetic core and the second side of the open-loop magnetic core.
6. The structure of claim 1, wherein: At least one of the first elastic member and the second elastic member is curved in shape.
7. The structure of claim 6, wherein: At least one of the first elastic member and the second elastic member includes a first section close to the body and a second section away from the body, wherein the first section is wider than the second section.
8. The structure of claim 1, wherein: The body defines a bore, wherein the body is configured to be coupled to a housing component extending through the bore.
9. The structure of claim 1, wherein: At least one of the first clamping member or the second clamping member includes a first section proximal to the body and a second section distal to the body, wherein the first section has a uniform width, and wherein the second section has a variable width.
10. The structure of claim 1, wherein: The first clamping member and the second clamping member are configured to secure the magnetic sensor when the structure is compressed.
11. A component comprising: Upper housing component; Lower housing component; Open loop core; Magnetic sensor; as well as Structure, the structure comprising: a main body extending in a horizontal direction H and a transverse direction T orthogonal to the horizontal direction H, wherein the main body includes a first end and a second end spaced apart along the horizontal direction H; a first elastic member connected to the first end, wherein the first elastic member extends in a direction away from the body, and wherein the first elastic member includes an outer surface defining a point on the first elastic member that is farthest from the body along the horizontal direction H; a second elastic member connected to the second end, wherein the second elastic member extends in a direction away from the body, and wherein the second elastic member includes an outer surface defining a point on the second elastic member that is farthest from the body along the horizontal direction H; a first clamping member connected to the body between the first end and the second end; and a second clamping member connected to the body between the first end and the second end, wherein the first clamping member and the second clamping member are configured to fix the magnetic sensor, wherein a distance D1 between an outer surface of the first elastic component and an outer surface of the second elastic component is longer than a distance D2 defining a length between a first surface of the open-loop magnetic core and a second surface of the open-loop magnetic core, and Wherein the structure is configured to be compressed between the first face of the open-loop magnetic core and the second face of the open-loop magnetic core by contacting an outer surface of the first elastic component and an outer surface of the second elastic component.
12. The assembly of claim 11, wherein: The magnetic sensor includes a Hall element.
13. The assembly of claim 11, wherein: The structure is at least partially made of metal.
14. The assembly of claim 13, wherein: The metal includes copper.
15. The assembly of claim 13, wherein: The structure is configured to ground the open-loop magnetic core when compressed between the first side of the open-loop magnetic core and the second side of the open-loop magnetic core.
16. The assembly of claim 11, wherein: At least one of the first elastic member and the second elastic member is curved in shape.
17. The assembly of claim 16, wherein: At least one of the first elastic member and the second elastic member includes a first section close to the body and a second section away from the body, wherein the first section is wider than the second section.
18. The assembly of claim 11, wherein: The body defines a bore, wherein the upper housing component is configured to be coupled to the body and extend through the bore.
19. The assembly of claim 11, wherein: At least one of the first clamping member or the second clamping member includes a first section proximal to the body and a second section distal to the body, wherein the first section has a uniform width, and wherein the second section has a variable width.
20. The assembly of claim 11, wherein: The distance between the first face of the split-loop magnetic core and the magnetic sensor is described as distance D3, and wherein the distance D3 is maintained if the split-loop magnetic core is displaced.