阅读说明：本技术 一种熔断器的绝缘材料填充设备及绝缘材料填充方法 (Insulating material filling equipment and insulating material filling method for fuse ) 是由 苟阿鹏 高琳 李海超 雷美娟 蒋江来 张学成 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种熔断器的绝缘材料填充设备及绝缘材料填充方法,该设备包括输送机构、搬运机构、填充机构、检测机构、补料机构、压塞机构以及控制模块；所述输送机构、搬运机构、填充机构、检测机构、补料机构、压塞机构分别与所述控制模块电性连接,且受控于所述控制模块。本发明提供的一种熔断器的绝缘材料填充设备及绝缘材料填充方法,通过将多个独立的工序进行有效的整合,解决了现有各工序独立运行造成的生产成本过高、生产效率低下、产品一致性差等问题,具有较高的市场推广价值。(The invention discloses an insulating material filling device and an insulating material filling method of a fuse, wherein the device comprises a conveying mechanism, a carrying mechanism, a filling mechanism, a detection mechanism, a material supplementing mechanism, a plug pressing mechanism and a control module; the conveying mechanism, the carrying mechanism, the filling mechanism, the detecting mechanism, the material supplementing mechanism and the plug pressing mechanism are respectively electrically connected with the control module and controlled by the control module. According to the insulating material filling equipment and the insulating material filling method for the fuse, provided by the invention, through effectively integrating a plurality of independent processes, the problems of overhigh production cost, low production efficiency, poor product consistency and the like caused by independent operation of the existing processes are solved, and the market popularization value is higher.)

1. The equipment for filling the insulating material of the fuse is characterized by comprising a conveying mechanism, a carrying mechanism, a filling mechanism, a detection mechanism, a material supplementing mechanism, a plug pressing mechanism and a control module; wherein the content of the first and second substances,

the conveying mechanism, the carrying mechanism, the filling mechanism, the detecting mechanism, the material supplementing mechanism and the plug pressing mechanism are respectively electrically connected with the control module and controlled by the control module;

the conveying mechanism is used for conveying materials to be filled and conveying filled materials;

the conveying mechanism is used for conveying materials to be filled from the conveying mechanism to the filling mechanism, and conveying the filled materials to the detection mechanism, the material supplementing mechanism, the plugging mechanism and the conveying mechanism respectively;

the filling mechanism is used for filling the insulating material into the material to be filled;

the detection mechanism is used for detecting the compactness of the insulating material of the filled material;

the material supplementing mechanism is used for supplementing the filled materials when the compactness is unqualified in detection;

the plug pressing mechanism is used for pressing and plugging the filled materials which are qualified in compactness detection or supplemented with materials.

2. An insulating material filling apparatus of a fuse according to claim 1, wherein the carrying mechanism includes a first carrying mechanism and a second carrying mechanism; wherein the content of the first and second substances,

the first carrying mechanism and the second carrying mechanism are respectively electrically connected with the control module and controlled by the control module;

the first carrying mechanism is movably arranged between the conveying mechanism and the filling mechanism and is used for carrying the materials to be filled from the conveying mechanism to the filling mechanism;

the second carrying mechanism is movably arranged between the conveying mechanism and the detecting mechanism, the material supplementing mechanism and the plug pressing mechanism and is used for carrying the filled materials to the detecting mechanism, the material supplementing mechanism, the plug pressing mechanism and the conveying mechanism respectively.

3. An insulating material filling apparatus of a fuse according to claim 2, wherein the first and second handling mechanisms are each a 6-axis robot.

4. An insulating material filling apparatus of a fuse according to claim 1, wherein said filling mechanism includes a first feeding device, a filling device, and a first vibration source device; wherein the content of the first and second substances,

the first feeding device, the filling device and the first vibration source device are respectively electrically connected with the control module and controlled by the control module;

the first feeding device is used for conveying the insulating material for filling to the filling device;

the filling device is used for filling the insulating material into the material to be filled;

the first vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the filling device.

5. The insulating material filling apparatus of a fuse according to claim 4, wherein the filling mechanism further comprises a first filling bin;

the first feeding device, the filling device and the first vibration source device are all arranged in the first filling bin.

6. An insulating material filling apparatus of a fuse according to claim 1, wherein the detection mechanism is a pressure sensor or a gravity sensor.

7. The insulating material filling apparatus of a fuse according to claim 1, wherein the replenishing mechanism includes a second feeding device, a replenishing device, and a second vibration source device; wherein the content of the first and second substances,

the second feeding device, the material supplementing device and the second vibration source device are respectively electrically connected with the control module and controlled by the control module;

the second feeding device is used for conveying the insulating material for filling to the feeding device;

the material supplementing device is used for supplementing the filled materials when the compactness is unqualified in detection;

the second vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the material supplementing device.

8. The insulating material filling apparatus of a fuse according to claim 7, wherein the replenishing mechanism further comprises a second filling bin;

and the second feeding device, the material supplementing device and the second vibration source device are all arranged in the second filling bin.

9. The insulation filling apparatus of a fuse according to claim 1, wherein said caulking mechanism includes a vibration plate, a caulking device, and a position calibration device, wherein,

the vibration disc, the plug pressing device and the position calibration device are respectively electrically connected with the control module and controlled by the control module;

the position calibration device is used for carrying out position identification on a plug pressing hole of a filled material which is qualified in compactness detection or supplemented with materials;

the vibrating disc is used for conveying the plug for pressing to the pressing device;

the plug pressing device is used for pressing the plug into the plug pressing hole of the filled material which is qualified in compactness detection or after material supplement.

10. A method of filling an insulating material of a fuse, the method comprising:

conveying the material to be filled to a set position through the conveying mechanism;

conveying the material to be filled from the set position on the conveying mechanism to the filling mechanism through the conveying mechanism;

filling an insulating material into the material to be filled by the filling mechanism in a mode of filling and vibrating;

the detection mechanism is used for detecting the compactness of the filled material to judge whether the compactness is qualified;

if the materials are not qualified, the materials which are filled are supplemented by the material supplementing mechanism in a mode of filling and vibrating;

and if the filling materials are qualified, the filled materials are subjected to tamponade through the tamponade mechanism.

Technical Field

The invention relates to the technical field of fuses, in particular to insulating material filling equipment and an insulating material filling method of a fuse.

Background

The fuse is a circuit protection device and is widely applied to overcurrent protection scenes of various electronic components, a metal conductor is used as a melt to be connected in series in a circuit, and when the current exceeds a specified value due to the abnormality of the circuit, the melt of the fuse can be automatically melted, so that the circuit is disconnected, and an electric appliance is protected.

The core parts of the fuse include a housing, a connecting member, a cover plate, an insulating material, and the like, in addition to the fuse element. In the production process of the fuse, filling of the insulating material is a critical process. At present, the degree of automation of the fuse industry is not high, wherein the processes of filling insulating materials, detecting the compactness of the insulating materials, replenishing the insulating materials and pressing plugs are relatively independent processes, when one process is finished and the next process is started, the process needs to be carried by manpower, so that the production cost is increased, the production efficiency is seriously influenced, and the consistency of products cannot reach an ideal state due to more human participation factors.

Therefore, there is a need for improvements in the prior art.

The above information is given as background information only to aid in understanding the present disclosure, and no determination or admission is made as to whether any of the above is available as prior art against the present disclosure.

Disclosure of Invention

The invention provides an insulating material filling device and an insulating material filling method of a fuse, and aims to overcome the defects in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

in a first aspect, an embodiment of the present invention provides an insulating material filling apparatus for a fuse, where the apparatus includes a conveying mechanism, a carrying mechanism, a filling mechanism, a detection mechanism, a material supplementing mechanism, a plugging mechanism, and a control module; wherein the content of the first and second substances,

the conveying mechanism, the carrying mechanism, the filling mechanism, the detecting mechanism, the material supplementing mechanism and the plug pressing mechanism are respectively electrically connected with the control module and controlled by the control module;

the conveying mechanism is used for conveying materials to be filled and conveying filled materials;

the conveying mechanism is used for conveying materials to be filled from the conveying mechanism to the filling mechanism, and conveying the filled materials to the detection mechanism, the material supplementing mechanism, the plugging mechanism and the conveying mechanism respectively;

the filling mechanism is used for filling the insulating material into the material to be filled;

the detection mechanism is used for detecting the compactness of the insulating material of the filled material;

the material supplementing mechanism is used for supplementing the filled materials when the compactness is unqualified in detection;

the plug pressing mechanism is used for pressing and plugging the filled materials which are qualified in compactness detection or supplemented with materials.

Further, in the insulating material filling apparatus of the fuse, the carrying mechanism includes a first carrying mechanism and a second carrying mechanism; wherein the content of the first and second substances,

the first carrying mechanism and the second carrying mechanism are respectively electrically connected with the control module and controlled by the control module;

the first carrying mechanism is movably arranged between the conveying mechanism and the filling mechanism and is used for carrying the materials to be filled from the conveying mechanism to the filling mechanism;

the second carrying mechanism is movably arranged between the conveying mechanism and the detecting mechanism, the material supplementing mechanism and the plug pressing mechanism and is used for carrying the filled materials to the detecting mechanism, the material supplementing mechanism, the plug pressing mechanism and the conveying mechanism respectively.

Further, in the insulating material filling apparatus for a fuse, the first carrying mechanism and the second carrying mechanism are both 6-axis manipulators.

Further, in the insulating material filling device of the fuse, the filling mechanism comprises a first feeding device, a filling device and a first vibration source device; wherein the content of the first and second substances,

the first feeding device, the filling device and the first vibration source device are respectively electrically connected with the control module and controlled by the control module;

the first feeding device is used for conveying the insulating material for filling to the filling device;

the filling device is used for filling the insulating material into the material to be filled;

the first vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the filling device.

Further, in the insulating material filling device of the fuse, the filling mechanism further comprises a first filling bin;

the first feeding device, the filling device and the first vibration source device are all arranged in the first filling bin.

Further, in the insulating material filling apparatus of the fuse, the detection mechanism is a pressure sensor or a gravity sensor.

Further, in the insulating material filling device of the fuse, the material supplementing mechanism comprises a second feeding device, a material supplementing device and a second vibration source device; wherein the content of the first and second substances,

the second feeding device, the material supplementing device and the second vibration source device are respectively electrically connected with the control module and controlled by the control module;

the second feeding device is used for conveying the insulating material for filling to the feeding device;

the material supplementing device is used for supplementing the filled materials when the compactness is unqualified in detection;

the second vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the material supplementing device.

Further, in the insulating material filling device of the fuse, the feeding mechanism further comprises a second filling bin;

and the second feeding device, the material supplementing device and the second vibration source device are all arranged in the second filling bin.

Further, in the insulating material filling apparatus of the fuse, the caulking mechanism includes a vibration plate, a caulking device, and a position calibration device, wherein,

the vibration disc, the plug pressing device and the position calibration device are respectively electrically connected with the control module and controlled by the control module;

the position calibration device is used for carrying out position identification on a plug pressing hole of a filled material which is qualified in compactness detection or supplemented with materials;

the vibrating disc is used for conveying the plug for pressing to the pressing device;

the plug pressing device is used for pressing the plug into the plug pressing hole of the filled material which is qualified in compactness detection or after material supplement.

In a second aspect, an embodiment of the present invention provides a method for filling an insulating material in a fuse, where the method includes:

conveying the material to be filled to a set position through the conveying mechanism;

conveying the material to be filled from the set position on the conveying mechanism to the filling mechanism through the conveying mechanism;

filling an insulating material into the material to be filled by the filling mechanism in a mode of filling and vibrating;

the detection mechanism is used for detecting the compactness of the filled material to judge whether the compactness is qualified;

if the materials are not qualified, the materials which are filled are supplemented by the material supplementing mechanism in a mode of filling and vibrating;

and if the filling materials are qualified, the filled materials are subjected to tamponade through the tamponade mechanism.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

according to the insulating material filling equipment and the insulating material filling method for the fuse, provided by the embodiment of the invention, through effectively integrating a plurality of independent processes, the problems of overhigh production cost, low production efficiency, poor product consistency and the like caused by independent operation of each conventional process are solved, and the equipment and the method have high market popularization value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of an insulating material filling apparatus of a fuse according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a product produced by a previous process according to an embodiment of the present invention, wherein the electrical characteristics exceed the vertical deviation;

FIG. 3 is a schematic diagram showing comparison of electrical properties of a product produced by this embodiment and a product produced by a prior art process according to a first embodiment of the present invention;

fig. 4 is a schematic flowchart of an insulating material filling method of a fuse according to a second embodiment of the present invention.

Reference numerals:

the feeding mechanism 10, the carrying mechanism 20, the filling mechanism 30, the detecting mechanism 40, the material supplementing mechanism 50, the plug pressing mechanism 60 and the control module 70;

a first conveying mechanism 21 and a second conveying mechanism 22.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

In view of the above-mentioned drawbacks of the conventional insulating material filling techniques, the applicant of the present invention is based on practical experience and professional knowledge that are abundant over many years in the design and manufacture of such products, and actively develops and innovates in combination with the application of theory, so as to hopefully create a technique capable of solving the drawbacks of the conventional techniques, so that the insulating material filling techniques have higher practicability. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.

Referring to fig. 1, an embodiment of the present invention provides an apparatus for filling an insulating material into a fuse, the apparatus including a conveying mechanism 10, a carrying mechanism 20, a filling mechanism 30, a detecting mechanism 40, a material supplementing mechanism 50, a plugging mechanism 60, and a control module 70; wherein the content of the first and second substances,

the conveying mechanism 10, the carrying mechanism 20, the filling mechanism 30, the detecting mechanism 40, the material supplementing mechanism 50 and the plugging mechanism 60 are respectively electrically connected with the control module 70 and controlled by the control module 70;

the conveying mechanism 10 (servo-controlled) is used for conveying the material to be filled and conveying the filled material;

the conveying mechanism 20 is used for conveying the materials to be filled from the conveying mechanism 10 to the filling mechanism 30, and conveying the filled materials to the detecting mechanism 40, the material supplementing mechanism 50, the plugging mechanism 60 and the conveying mechanism 10 respectively;

the filling mechanism 30 is used for filling the insulating material into the material to be filled;

the detection mechanism 40 is used for detecting the compactness of the insulating material of the filled material;

the material supplementing mechanism 50 is used for supplementing the filled materials when the compactness detection is unqualified;

the plugging mechanism 60 is used for plugging the filled material which is qualified in compactness detection or supplemented with materials.

In the present embodiment, the carrying mechanism 20 includes a first carrying mechanism 21 and a second carrying mechanism 22; wherein the content of the first and second substances,

the first carrying mechanism 21 and the second carrying mechanism 22 are respectively electrically connected with the control module 70 and controlled by the control module 70;

the first carrying mechanism 21 is movably arranged between the conveying mechanism 10 and the filling mechanism 30, and is used for carrying the material to be filled from the conveying mechanism 10 to the filling mechanism 30;

the second carrying mechanism 22 is movably disposed between the conveying mechanism 10 and the detecting mechanism 40, the replenishing mechanism 50, and the plugging mechanism 60, and is used for carrying the filled materials to the detecting mechanism 40, the replenishing mechanism 50, the plugging mechanism 60, and the conveying mechanism 10, respectively.

Preferably, the first and second conveying mechanisms 21 and 22 are both 6-axis robots, but may be other mechanisms having conveying capability.

In the present embodiment, the filling mechanism 30 includes a first feeding device, a filling device, and a first vibration source device; wherein the content of the first and second substances,

the first feeding device, the filling device and the first vibration source device are respectively electrically connected with the control module 70 and controlled by the control module 70;

the first feeding device is used for conveying the insulating material for filling to the filling device;

the filling device is used for filling the insulating material into the material to be filled;

the first vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the filling device.

It should be noted that the insulating material for filling is generally quartz sand, and the quartz sand has high thermal conductivity and insulating property, and has a large contact area with the arc, so as to be convenient for absorbing the arc energy. The arrangement of the first vibration source device can assist the filling device to better fill the insulating material into the material to be filled.

In this embodiment, the filling mechanism 30 further comprises a first filling bin;

the first feeding device, the filling device and the first vibration source device are all arranged in the first filling bin.

In the present embodiment, a first filling chamber is provided to prevent an insulating material such as silica sand from leaking during filling. When the filling mechanism 30 is used for filling, the bin gate of the first filling bin is closed, then the first vibration source device and the filling device are opened, the filling action and the vibration action work in parallel, and the amplitude and the frequency of the vibration can be adjusted according to the shape and the size of the material. The first feeding device realizes the feeding action through negative pressure suction, but is not limited to the form.

Compared with the conventional process, each station of the filling mechanism 30 of the embodiment adopts a separate vibration source, and the frequency of the divided adjustable vibration source is added in the program, so that the filling compactness is ensured to a great extent, the tightness of the compactness directly influences the arc extinguishing characteristic of the product, and the good compactness can shorten the dividing time of the product when the short-circuit current is divided, thereby reducing the total I value of the product when the product is divided² T。

The whole filling process is completed automatically without the influence of human operation factors, so that the consistency of the electrical characteristics of the product is very high, and the electrical characteristics of the product often exceed the vertical deviation due to the participation of the previous human factors, such asAs shown in fig. 2, the ideal protection effect cannot be achieved and even unnecessary economic loss is caused. When the product produced by the embodiment is compared with the product produced by the prior process in the electrical performance, the product produced by the embodiment obviously meets the expectation (the total I of the product during the breaking is reduced)²T), as shown in fig. 3, the electrical characteristic deviation was reduced by 2 percentage points compared to the previous one.

In addition, this embodiment can wash except that impurity with insulating material such as quartz sand before filling, and clean quartz sand more is favorable to the arc extinguishing, can toast quartz sand after the washing, and dry quartz sand can increase the mobility of sand, fills more easily and reaches closely knit degree requirement, effectual improvement packing efficiency.

In the present embodiment, the detecting mechanism 40 is a pressure sensor or a gravity sensor. Namely, the detection mode can be a mode of pressure feedback or a mode of weight feedback and the like,

in this embodiment, the feeding mechanism 50 includes a second feeding device, a feeding device and a second vibration source device; wherein the content of the first and second substances,

the second feeding device, the feeding device and the second vibration source device are respectively electrically connected with the control module 70 and controlled by the control module 70;

the second feeding device is used for conveying the insulating material for filling to the feeding device;

the material supplementing device is used for supplementing the filled materials when the compactness is unqualified in detection;

the second vibration source device is used for exciting the material to be filled to vibrate during filling so as to be matched with the material supplementing device.

Preferably the feed mechanism 50 further comprises a second filling bin;

and the second feeding device, the material supplementing device and the second vibration source device are all arranged in the second filling bin.

In this embodiment, the replenishing means 50 and the filling means 30 actually include some devices for the same operation, but different names are defined because of the need for process distinction.

In this embodiment, the corking mechanism 60 comprises a vibrating disk, a corking device, and a position calibration device, wherein,

the vibration disc, the tamponade device and the position calibration device are respectively and electrically connected with the control module 70 and controlled by the control module 70;

the position calibration device is used for carrying out position identification on a plug pressing hole of a filled material which is qualified in compactness detection or supplemented with materials;

the vibrating disc is used for conveying the plug for pressing to the pressing device;

the plug pressing device is used for pressing the plug into the plug pressing hole of the filled material which is qualified in compactness detection or after material supplement.

It should be noted that the position calibration device can be a CCD vision detection or other various types, and after the jam is completed, the second handling mechanism 22 will handle the material onto the conveying mechanism 10 for the next process.

According to the insulating material filling equipment for the fuse, provided by the embodiment of the invention, through effectively integrating a plurality of independent processes, the problems of overhigh production cost, low production efficiency, poor product consistency and the like caused by independent operation of the existing processes are solved, and the equipment has high market popularization value.

Example two

Fig. 4 is a schematic flow chart illustrating a method for filling an insulating material into a fuse according to a second embodiment of the present invention. The method is executed by the insulating material filling equipment of the fuse, and comprises the following steps:

s201, conveying the material to be filled to a set position through the conveying mechanism;

the set position is a position convenient for the conveyance mechanism to convey, and may be set arbitrarily.

S202, conveying the materials to be filled from the set position on the conveying mechanism to the filling mechanism through the conveying mechanism;

s203, filling an insulating material into the material to be filled by the filling mechanism in a mode of filling and vibrating;

s204, carrying out compactness detection on the filled material through the detection mechanism to judge whether the compactness is qualified or not; if not, step S205 is executed, and if not, step S206 is directly executed.

The detection method may be a pressure feedback method, a weight feedback method, or the like.

S205, feeding the filled materials by the feeding mechanism in a mode of filling and vibrating;

s206, the filled materials are subjected to tamponade through the tamponade mechanism.

According to the method for filling the insulating material of the fuse, provided by the embodiment of the invention, through effectively integrating a plurality of independent processes, the problems of overhigh production cost, low production efficiency, poor product consistency and the like caused by independent operation of the existing processes are solved, and the method has high market popularization value.

The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.

When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.