CN218160131U - Touch control type key and near-to-eye display handle - Google Patents

Abstract

The utility model provides a touch button and near-to-eye display handle, it can simplify the equipment flow, reduce cost. The touch key comprises: a key housing having a key depression groove and an annular groove surrounding the key depression groove; the carbon conductive base is convexly arranged on the key groove of the key shell; and a spring, wherein a first end of the spring is sleeved in the annular groove of the key shell, and a second end of the spring is used for connecting a circuit substrate of the circuit board so as to suspend the carbon conductive base on a conductive element of the circuit board.

Description

Touch control type key and near-to-eye display handle

Technical Field

The utility model relates to a touch-sensitive technology field especially relates to a touch button and near-to-eye display handle.

Background

In recent years, near-eye display (NED) technologies such as Augmented Reality (AR) and Virtual Reality (VR) are getting hotter, and analog push buttons have been widely used in control of Near-eye display devices as a medium for human-computer interaction, so as to bring more real interaction experience to users.

At present, a current design scheme is to arrange the plastic key on the circuit board through the silica gel elastic seat, wherein the silica gel elastic seat is toper cavity boss, the plastics key is pasted in the upside of silica gel elastic seat, electrically conductive silica gel is pasted in the downside of silica gel elastic seat, the position that corresponds with electrically conductive silica gel on the circuit board is provided with the carbon film resistance, thereby guarantee through the silica gel elastic seat of cavity boss shape that its silica gel leads the base not with carbon film resistance contact under normal condition, and silica gel leads base and carbon film resistance contact when pressing the plastic key, in order to realize the control function of button. However, in the design scheme, on one hand, the silica gel elastic seat needs to be arranged into a hollow conical boss, so that a hot pressing mold needs to be opened when the silica gel elastic seat is produced, and the production cost of the key is increased; on the other hand, the silica gel on the silica gel elastic seat needs to be aligned with the carbon film resistor on the circuit board, and the key body needs to be aligned with the key hole of the handle shell, so that the key hole on the handle, the key body, the silica gel guide base and the carbon film resistor on the circuit board are required during manufacturing, but the silica gel guide base is arranged below the boss of the silica gel elastic seat and is not easy to see during manufacturing, the position of the lower edge of the silica gel elastic seat needs to be determined through the positioning column, and then the plastic key is bonded on the boss of the silica gel elastic seat through the gum, so that the manufacturing difficulty of the key is greatly increased.

In addition, in another existing design scheme, conical helical springs are arranged on the peripheries of the silica gel elastic seat and the plastic key, but the design scheme not only needs to open a hot pressing mold for the silica gel elastic seat to increase the cost, but also has resilience force when the key is pressed down, so that the hand feeling during use is not easy to control. Meanwhile, the design scheme needs to relatively fix the silica gel elastic seat, the conical helical spring and the circuit board during manufacturing and positioning, and the position of the upper end of the spring needs to correspond to the plastic key hole on the handle, so that the manufacturing difficulty is undoubtedly increased.

SUMMERY OF THE UTILITY MODEL

An advantage of the present invention is to provide a touch button and near-to-eye display handle, which can simplify the assembly process and reduce the cost.

Another advantage of the present invention is to provide a touch button and near-to-eye display handle, wherein, in an embodiment of the present invention, the touch button can be guided without silica gel, simplifying the structure and saving the cost.

Another advantage of the present invention is to provide a touch button and a near-to-eye display handle, wherein, in an embodiment of the present invention, the touch button can only rely on the spring to control the resilience of the button, and the hand feeling is easy to adjust and control.

Another advantage of the present invention is to provide a touch button and near-to-eye display handle, wherein the utility model discloses an embodiment, touch button can be when the preparation location, only need with on the handle according to the position of key hole and the conductive element's on the circuit board position can, need not conductive silica gel's reference column, be convenient for retrench the preparation step.

Another advantage of the present invention is to provide a touch button and near-to-eye display handle, wherein the utility model discloses an in the embodiment, the touch button can be through filling in the mode according to the keyway with conductive silica gel and install the carbon conducting base, not only reduces the equipment degree of difficulty, is convenient for change or maintain moreover.

Another advantage of the present invention is to provide a touch button and a near-to-eye display handle, wherein to achieve the above object, the present invention does not require expensive materials or complex structures. Therefore, the utility model discloses successfully and effectively provide a solution, not only provide a simple touch-control formula button and near-to-eye display handle, still increased simultaneously the practicality and the reliability of touch-control formula button and near-to-eye display handle.

In order to realize the utility model discloses an above-mentioned at least one advantage or other advantages and purpose, the utility model provides a touch key for install in order to realize the touch-sensitive function in the circuit board, touch key includes:

a key housing having a key depression groove and an annular groove surrounding the key depression groove;

the carbon conductive base is convexly arranged on the key pressing groove of the key shell; and

a spring, a first end of the spring is sleeved in the annular groove of the key shell, and a second end of the spring is used for connecting a circuit substrate of the circuit board so as to suspend the carbon conductive base on a conductive element of the circuit board.

According to an embodiment of the application, touch key further include with key housing press the silica gel of keyway matching to lead the base, the one end that the base was led to the silica gel is glued and is in carbon conduction base, and the other end that the base was led to the silica gel is filled in key housing press in the keyway.

According to an embodiment of the present application, one end of the carbon conductive base is bonded in the key groove of the key housing, and the other end of the carbon conductive base protrudes out of the key groove.

According to an embodiment of the present application, the key housing includes a pressing portion, an outer ring portion integrally extending from the pressing portion, and an inner ring portion integrally extending from the pressing portion, wherein the outer ring portion surrounds the inner ring portion to form the annular groove between the outer ring portion and the inner ring portion, and the annular groove is surrounded by the inner ring portion.

According to an embodiment of the present application, the inner ring portion of the key housing has a circular cross-section; the outer ring part of the key shell is provided with a round-corner rectangular ring section.

According to an embodiment of the present application, the key housing further includes a rib integrally extending from the pressing portion to the inner ring portion, wherein the rib is located within the key groove, and a height of the rib is smaller than a depth of the key groove.

According to an embodiment of the application, the button housing further comprises a limiting block, and the limiting block protrudes outwards from the free end of the outer ring part.

According to one embodiment of the application, the spring is a compression spring wound from a single piece of elastic wire.

According to an embodiment of the application, the spring includes the spiral line body that cup joints in the ring channel of button casing and with the welding line body that the spiral line body is connected integratively, wherein the welding line body includes from the section of bending that the spiral line body extends with buckling, from the changeover portion that the section of bending circumference extends and from the grafting section that the changeover portion axial extends.

According to one embodiment of the application, the bending section and the plug section in the weld line body are arranged axisymmetrically.

According to another aspect of the present application, there is further provided an embodiment of the present application further comprising:

a handle body;

a circuit board disposed within the handle body; and

in any of the above touch keys, the touch key is mounted on the circuit board so as to perform touch sensing by pressing the touch key.

According to one embodiment of the present application, the circuit board includes a circuit substrate having soldering holes matching with soldering lines of springs of the touch key, and a conductive member electrically disposed on the circuit substrate in an area between the soldering holes.

Drawings

FIG. 1 is an overall perspective view of a near-eye display handle according to one embodiment of the present application;

FIG. 2 illustrates a partial perspective view of a near-eye display handle according to the above-described embodiments of the present application;

FIG. 3 shows a schematic top view of the near-eye display handle shown in FIG. 2;

FIG. 4 showsbase:Sub>A schematic cross-sectional A-A view of the near-eye display handle of FIG. 3;

FIG. 5 shows an exploded view of the near-eye display glasses shown in FIG. 2;

FIG. 6 shows an example of touch keys in a near-eye display handle according to the above-described embodiments of the present application;

FIG. 7 is an exploded view of the touch key according to the above embodiment of the present application;

fig. 8 is a schematic perspective view illustrating a key housing of the touch key according to the above-mentioned embodiment of the present application;

fig. 9 shows a modification example of the touch keys in the near-eye display handle according to the above-described embodiment of the present application.

Description of the main element symbols: 1. a near-eye display handle; 10. a touch key; 11. a key housing; 1101. pressing a key slot; 1102. an annular groove; 111. a pressing part; 112. an outer ring portion; 113. an inner ring portion; 114. reinforcing ribs; 115. a limiting block; 12. a carbon conductive group; 13. a spring; 130. a compression spring; 1301. a first end; 1302. a second end; 131. a helical body; 132. welding a wire body; 1321. bending sections; 1322. a transition section; 1323. a plug section; 14. silica gel guide base; 20. a circuit board; 21. a circuit substrate; 210. welding the hole; 211. a strip-shaped hole; 212. a circular hole; 22. a conductive element; 30. a handle body; 300. and (6) pressing a key hole.

The present application will be described in further detail with reference to the drawings and the detailed description.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

In the present application, the terms "a" and "an" in the claims and the description should be understood as meaning "one or more", that is, one element or a plurality of elements may be included in one embodiment or a plurality of elements may be included in another embodiment. The terms "a" and "an" and "the" and similar referents are to be construed to mean that the elements are limited to only one element or group, unless otherwise indicated in the disclosure.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In consideration of the fact that the existing analog push type key not only needs to manufacture the conical boss-shaped silica gel guide base through hot-pressing die opening, but also needs to align the conductive carbon base below the silica gel guide base to the carbon film resistor on the circuit board, so that the manufacturing difficulty is increased, and the production cost is higher. The application creatively provides a touch-control formula button and near-to-eye display handle, and it can simplify the equipment flow, reduce cost.

Specifically, referring to fig. 1 to 8 of the drawings of the present application, according to an embodiment of the present application, a near-eye display handle 1 is provided, which may include a touch key 10, a circuit board 20 and a handle main body 30, the circuit board 20 is disposed inside the handle main body 30, the touch key 10 is mounted on the circuit board 20, so as to perform touch sensing by pressing the touch key 10, and facilitate a user to perform human-computer interaction with a near-eye display device such as VR/AR through the near-eye display handle 1, so that the user obtains a better near-eye display experience.

More specifically, as shown in fig. 2, 3, and 4, the circuit board 20 may include a circuit substrate 21 and a conductive member 22 that is electrically energizable to the circuit substrate 21. The touch key 10 may include a key housing 11, a carbon conductive base 12, and a spring 13. The key housing 11 has a key groove 1101 and an annular groove 1102 surrounding the key groove 1101. The carbon conductive base 12 is protruded in the key groove 1101 of the key housing 11. The first end 1301 of the spring 13 is sleeved in the annular groove 1102 of the key housing 11, and the second end 1302 of the spring 13 is used for connecting the circuit substrate 21 of the circuit board 20 to suspend the carbon conductive base 12 above the conductive element 22 of the circuit board 20.

Thus, when the key housing 11 is pressed, the spring 13 is compressed to accumulate elastic potential energy for bringing the carbon conductive base 12 close to the circuit substrate 21 to be electrically connected with the conductive member 22; when the key housing 11 is released, the spring 13 automatically rebounds to release the accumulated elastic potential energy, so as to separate the carbon conductive base 12 from the circuit substrate 21 to disconnect the conductive element 22, thereby implementing the touch sensing function of the touch key 10 by touching the key housing 11.

It is worth noting that the touch control type key 10 can control the resilience of the key only by the spring 13 without depending on a silica gel guide base, and is easy to regulate and control hand feeling; and the conical boss-shaped silica gel elastic seat is not required to be manufactured by hot-pressing and die-opening in the prior art, so that the structure is simplified, and the cost is saved. It is understood that the conductive element 22 of the present application can be implemented as, but not limited to, a carbon film resistor, and can also be implemented as other elements such as a copper member, which will not be described in detail herein.

For example, as shown in fig. 4 and fig. 5, the touch key 10 may further include a silicone conductor 14 matching with the key slot 1101 of the key housing 11, one end of the silicone conductor 14 is connected to the carbon conductor 12, and the other end of the silicone conductor 14 is plugged into the key slot 1101 of the key housing 11, so that the carbon conductor 12 protrudes out of the key slot 1101 of the key housing 11, so that when the key housing 11 is pressed, the carbon conductor 12 contacts the conductive element 22 of the circuit board 20 for electrical connection. It will be appreciated that the silicone rubber conductive base 14 is itself resilient and has an outer diameter generally slightly larger than the inner diameter of the key slot 1101, so that after being pressed into the key slot 1101, it can not only be securely retained in the key slot 1101, but also be removed from the key slot 1101 for maintenance or replacement with a new carbon conductive base 12.

Optionally, the carbon conductive base 12 is glued to the silicone conductive base 14, that is, the silicone conductive base 14 and the carbon conductive base 12 are glued together. It can be understood that, in order to ensure the connection between the silicone rubber guide 14 and the key housing 11, the key slot 1101 may be coated with glue to be glued after the silicone rubber guide 14 is inserted into the key slot 1101.

It should be noted that, in other examples of the present application, the touch key 10 may not include the silicone conductive base 14, but directly fix the carbon conductive base 12 at the key slot 1101 of the key housing 11, so as to further simplify the structure and save the cost. For example, in a modified example of the present application, as shown in fig. 9, one end of the carbon conductive base 12 is bonded in the key groove 1101 of the key case 11, and the other end of the carbon conductive base 12 protrudes out of the key groove 1101 so as to be electrically connected to the conductive member 22 of the circuit board 20.

According to the above-mentioned embodiment of the present application, as shown in fig. 4 and 5, the handle main body 30 of the near-eye display handle 1 is generally provided with the key hole 300 matching with the key housing 11, and the key housing 11 is movably inserted into the key hole 300 of the handle main body 30 to be partially exposed outside the handle main body 30, so that the user can press the key housing 11 outside the handle main body 30 to realize the touch sensing function. It is understood that the key housing 11 of the present application may be, but is not limited to being, made of a plastic material.

Alternatively, as shown in fig. 6 and 7, the key housing 11 may include a pressing portion 111, an outer ring portion 112 integrally extending from the pressing portion 111, and an inner ring portion 113 integrally extending from the pressing portion 111, wherein the outer ring portion 112 surrounds the inner ring portion 113 to form the annular groove 1102 between the outer ring portion 112 and the inner ring portion 113, and the inner ring portion 113 surrounds the key groove 1101.

Optionally, the extension length of the inner ring portion 113 in the key housing 11 is greater than the extension length of the outer ring portion 112, so that the inner ring portion 113 protrudes from the outer ring portion 112, and the outer ring portion 112 is prevented from affecting the electrical connection between the carbon conductive base 12 and the conductive element 22.

Alternatively, as shown in fig. 7 and 8, the inner ring portion 113 of the key housing 11 has a circular ring-shaped cross section to form the key slot 1101 with a cylindrical structure, so as to facilitate the insertion of the silicone rubber guide 14 into the key slot 1101.

Optionally, the outer ring portion 112 of the key housing 11 has a non-circular cross section to guide the key housing 11 to slide axially in the key hole 300 of the handle main body 30, so as to prevent the key housing 11 from twisting in the key hole 300 of the handle main body 30. For example, as shown in fig. 8, the outer ring portion 112 of the key housing 11 has a rounded rectangular ring cross-section.

Optionally, as shown in fig. 8, the key housing 11 further includes a rib 114, and the rib 114 integrally extends from the pressing portion 111 to the inner ring portion 113, so as to enhance the structural strength of the inner ring portion 113.

Optionally, as shown in fig. 8, the stiffener 114 of the key housing 11 is located in the key slot 1101 of the key housing 11, and the height of the stiffener 114 is smaller than the depth of the key slot 1101, so as to support the silicone conductive base 14 inserted into the key slot 1101 through the stiffener 114, and prevent the carbon conductive base 12 from being completely pressed into the key slot 1101 and being unable to be electrically connected to the conductive element 22 of the circuit board 20.

Optionally, as shown in fig. 8, the stiffener 114 of the key housing 11 has a cross-shaped cross section, so as to form a dispensing space between the stiffener 114 and the inner ring portion 113, so as to facilitate dispensing and fixing the silicone rubber base 14 plugged into the key slot 1101.

Optionally, as shown in fig. 4 and 5, the key housing 11 may further include a stopper 115, where the stopper 115 protrudes outward from a free end of the outer ring portion 112 (i.e., an end of the outer ring portion 112 away from the pressing portion 111) to limit the outer ring portion 112 of the key housing 11 from passing through the key hole 300 of the handle main body 30, so as to ensure that the key housing 11 is maintained in a state of partially passing through the key hole 300, and prevent the key housing 11 from being separated from the key hole 300 of the handle main body 30.

It is noted that, in order to ensure a stable connection between the touch key 10 and the circuit board 20, the second end 1302 of the spring 13 of the touch key 10 can be soldered to the circuit substrate 21 of the circuit board 20.

Alternatively, as shown in fig. 5 and 7, the spring 13 of the present application may be, but is not limited to being, implemented as a compression spring 130 wound from one elastic wire body.

Alternatively, as shown in fig. 5 and 7, the spring 13 may include a spiral wire body 131 fitted around the annular groove 1102 of the key housing 11 and a welding wire body 132 integrally connected with the spiral wire body 131; the circuit board 21 of the circuit board 20 has a soldering hole 210 matching with the soldering wire 132, and the soldering wire 132 of the spring 13 is inserted into the soldering hole 210 of the circuit board 21 for soldering. It is understood that the end of the spring 13 of the present application where the weld line 132 is located is embodied as the second end 1302 of the spring 13.

Optionally, as shown in fig. 5 and 7, the welding wire body 132 of the spring 13 includes a bent section 1321 extending from the spiral wire body 131 in a bent manner, a transition section 1322 extending from the bent section 1321 in a circumferential direction, and an insertion section 1323 extending from the transition section 1322 in an axial direction; the soldering hole 210 of the circuit board 21 of the circuit board 20 includes strip holes 211 and circular holes 212 arranged at intervals, the bending section 1321 of the soldering line 132 is inserted into the strip hole 211 of the circuit board 21, and the inserting section 1323 of the soldering line 132 is inserted into the circular hole 212 of the circuit board 21, so as to increase the soldering points of the spring 13 and the circuit board 20 and improve the connection firmness between the two. It is understood that the strip-shaped hole 211 of the present application may be, but is not limited to being, implemented as a circular arc-shaped hole.

Optionally, the bending segment 1321 and the inserting segment 1323 of the welding wire body 132 are arranged axisymmetrically, i.e. the central angle of the transition segment 1322 of the welding wire body 132 is close to 180 °, so as to stably support the spring 13, and prevent the key housing 11 from tilting due to unstable support of the spring 13 when being pressed.

It should be noted that, as shown in fig. 5, the conductive element 22 of the circuit board 20 of the present application is located in the area between the plurality of soldering holes 210 (e.g. the strip-shaped hole 211 and the circular hole 212) on the circuit substrate 21, so as to ensure that the conductive element 22 and the carbon conductive base 12 are aligned with each other to improve the stability of the electrical connection.

In addition, when manufacturing and assembling the near-to-eye display handle 1, the position of the key hole 300 on the handle main body 30 corresponds to the position of the conductive element on the circuit board 20, and the spring 13 is welded with the welding hole 210 of the circuit board 21, and a carbon conductive base is directly installed in the key groove 1101 of the key shell 11 without a positioning column of conductive silicone in the prior art, so that the manufacturing and assembling steps are greatly simplified.

It is worth mentioning that according to another aspect of the present application, an embodiment of the present application further provides a method of manufacturing a near-eye display handle, which may include the steps of:

welding the second end of the spring at a welding hole of a circuit substrate of the circuit board;

inserting the silica gel conductive base into the key pressing groove of the key shell to convexly arrange the carbon conductive base;

sleeving the first end of the spring in the annular groove of the key shell so as to suspend the carbon conductive element based on the circuit board; and

the circuit board is assembled in the handle main body, and the key shell can movably penetrate into the key hole of the handle main body.

It should be noted that, the present application does not limit the sequence between the steps of the method for manufacturing the near-eye display handle, as long as the assembly of the near-eye display handle 1 can be completed, and the present application is not described herein again.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. Touch-control formula button for install in order to realize touch-sensitive function in the circuit board, its characterized in that, touch-control formula button includes:

a key case having a key pressing groove and an annular groove surrounding the key pressing groove;

the carbon conductive base is convexly arranged on the key pressing groove of the key shell; and

a spring, a first end of the spring is sleeved in the annular groove of the key shell, and a second end of the spring is used for connecting a circuit substrate of the circuit board so as to suspend the carbon conductive base on a conductive element of the circuit board.

2. The touch key as recited in claim 1, further comprising a silicone guide base matching the key slot of the key housing, wherein one end of the silicone guide base is bonded to the carbon conductive base, and the other end of the silicone guide base is plugged into the key slot of the key housing.

3. The touch key of claim 1, wherein one end of the carbon conductive base is adhered to the key pressing groove of the key housing, and the other end of the carbon conductive base extends out of the key pressing groove.

4. The touch key of any one of claims 1 to 3, wherein the key housing includes a pressing portion, an outer ring portion integrally extending from the pressing portion, and an inner ring portion integrally extending from the pressing portion, the outer ring portion surrounds the inner ring portion to form the annular groove between the outer ring portion and the inner ring portion, and the key slot is surrounded by the inner ring portion.

5. The touch key of claim 4, wherein the inner ring of the key housing has a circular cross-section; the outer ring part of the key shell is provided with a round-corner rectangular ring section.

6. The touch key of claim 4, wherein the key housing further comprises a rib integrally extending from the pressing portion to the inner ring portion, wherein the rib is located within the key slot, and the height of the rib is less than the depth of the key slot.

7. The touch key of claim 4, wherein the key housing further comprises a stopper protruding outward from a free end of the outer ring.

8. The touch key of any one of claims 1-3, wherein the spring is a compression spring formed by winding an elastic wire.

9. The touch key of claim 8, wherein the spring comprises a spiral wire body sleeved on the annular groove of the key housing and a welding wire body integrally connected to the spiral wire body, and wherein the welding wire body comprises a bending section extending from the spiral wire body in a bending manner, a transition section extending from the bending section in a circumferential direction, and an insertion section extending from the transition section in an axial direction.

10. The touch key of claim 9, wherein the bending segments and the plugging segments of the soldering wire body are arranged in an axisymmetric manner.

11. A near-to-eye display handle, comprising:

a handle body;

a circuit board disposed within the handle body; and

the touch key of any one of claims 1-10, the touch key being mounted on the circuit board for touch sensing by pressing the touch key.

12. The near-eye display handle according to claim 11, wherein the circuit board comprises a circuit substrate and a conductive element electrically disposed on the circuit substrate, the circuit substrate has soldering holes matching with the soldering lines of the spring of the touch key, and the conductive element is located in an area between the soldering holes.

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