Electronic indicator

Abstract

DEPCT65 Electronic indicator (1) includes casing (10) and housing (30). Casing (10) is attached to the mounting panel. In a condition where it is partially protruding forward from the mounting panel and substrate (21) which is kept inside through the opening section. (11) Located at the position protruding from the panel attached to the enclosure (30) Encloses the opening (11) of the casing (10) Casing (10) This includes the side walls which are provided with interlocking pieces that will be attached to the substrate (21), which pieces More than one connecting piece is supported in a cantilever structure by the area protruding from the attached panel and extending outwards. Go towards the rear of the mounting panel and at the edge of each piece, including the protrusions that extend towards the inside of the casing. (10) -----------------------------------------------------------

Description

Electronic indicating instrument

[0007] ,

[0006] , ,

[0005]

[0001] The present invention relates to an electronic indicating instrument that is attached in a state where a part thereof protrudes in front of an attachment panel.

[0002] Conventionally, an electronic indicating instrument has a substrate on which a plurality of components constituting an electric circuit are mounted, and such a substrate is attached to the case of the electronic indicating instrument by, for example, a snap fit method. For example, Patent Document 1 discloses a technique of providing a snap fit engagement piece that protrudes from the bottom wall portion of the case in a direction along the side wall portion of the case, and attaching the substrate to the case by such an engagement piece.

[0003] Japanese Patent Application Laid-Open No. 2006-90949

[0004] However, in the structure in which the substrate is attached to the housing by the snap fit engagement piece, the engagement piece is deflected when the substrate is attached to the case, and a stress corresponding to the magnitude of such deflection is applied to the substrate. And in the technique described in Patent Document 1 mentioned above, the engagement piece protrudes from the bottom wall portion of the case in a direction along the side wall portion of the case. Therefore, when trying to reduce the stress applied to the substrate when attaching the substrate to the case, the length of the engagement piece protruding from the bottom wall portion of the case becomes long, and the electronic indicating instrument may be enlarged.

[0005] The present invention has been made in view of the above, and an object thereof is to obtain an electronic indicating instrument capable of reducing the stress applied to the substrate while suppressing enlargement.

[0006] In order to solve the above-described problems and achieve the object, the electronic indicating instrument of the present invention includes a case and a cover. The case is attached to the attachment panel in a state where a part thereof protrudes in front of the attachment panel, and the substrate is housed inside through an opening at a position protruding from the attachment panel. The cover covers the opening of the case. The case is supported in a cantilever manner in a region protruding from the attachment panel and extends toward the rear of the attachment panel, and each has a protruding portion protruding toward the inside of the case at the tip, and includes a side wall portion provided with a plurality of engagement pieces that engage with the substrate.

[0007] According to the present invention, it is possible to reduce the stress applied to the substrate while suppressing an increase in size.

[0008] A perspective view showing an example of an electronic indicator according to Embodiment 1 of the present invention. A figure showing the electronic indicator according to Embodiment 1 mounted on a mounting panel. A perspective view of the case according to Embodiment 1. A side view of the case according to Embodiment 1. A front view of the case according to Embodiment 1. A perspective view showing a part of the case according to Embodiment 1. A side view showing a part of the case according to Embodiment 1. A cross-sectional view along line VIII-VIII shown in Figure 7. A figure for explaining the process of mounting the substrate unit to the case according to Embodiment 1. A figure for explaining the stress applied to the substrate by the engaging piece when it is assumed that the engaging piece protrudes from the bottom wall of the case according to Embodiment 1 toward the opening. A figure for explaining the stress applied to the substrate by the engaging piece according to Embodiment 1. A side view of the electronic indicator according to Embodiment 1. A cross-sectional view along line XIII-XIII shown in Figure 12. A partially enlarged view of Figure 13.

[0009] An electronic indicator instrument according to an embodiment of the present invention will be described in detail below with reference to the drawings. However, this embodiment does not limit the present invention.

[0010] Embodiment 1. Figure 1 is an external perspective view showing an example of an electronic indicator instrument according to Embodiment 1 of the present invention. Figure 2 is a diagram showing the electronic indicator instrument according to Embodiment 1 mounted on a mounting panel.

[0011] The electronic indicating instrument 1 shown in Figures 1 and 2 measures electrical values ​​such as voltage, current, or power in an electrical circuit and displays the results of such measurements. For example, the electronic indicating instrument 1 measures the current, voltage, and amount of energy supplied from the power system to the consumer and displays the results of such measurements.

[0012] As shown in Figure 1, the electronic indicator 1 comprises a case 10 made of an insulating material such as resin, a circuit board unit 20 housed inside the case 10, and a cover 30 fitted into the case 10 and covering the opening 11 of the case 10.

[0013] The circuit board unit 20 comprises a circuit board 21 and a circuit board support portion 22 that supports the circuit board 21. The circuit board unit 20 is inserted through the opening 11 of the case 10 and attached to the case 10. The electronic indicator instrument 1 is then assembled by covering the opening 11 of the case 10 with the cover 30 while the circuit board unit 20 is attached to the case 10.

[0014] The cover 30 comprises a cover housing 31, a display unit 32 provided on the front side of the cover housing 31, and a plurality of operation buttons 33. The circuit board 21 has a plurality of components that constitute an electrical circuit that measures electrical values ​​such as voltage, current, or power and displays the results of such measurements on the display unit 32. This electrical circuit can switch the information displayed on the display unit 32 based on the operation of the operation buttons 33.

[0015] As shown in Figure 2, the electronic indicator 1 is mounted on the mounting panel 40 with a portion of it protruding forward from the mounting panel 40. The case 10 has an outward-projecting portion 16 formed on the outer circumference on the side of the opening 11. By bringing this outward-projecting portion 16 into contact with the mounting surface 40a of the mounting panel 40, the electronic indicator 1 can be easily mounted on the mounting panel 40 with a portion of it protruding forward from the mounting panel 40.

[0016] The cover 30 is positioned in front of the mounting surface 40a of the mounting panel 40 when the electronic indicator 1 is mounted on the mounting panel 40. The cover 30 can be removed from the case 10 when the electronic indicator 1 is mounted on the mounting panel 40.

[0017] Figure 3 is an external perspective view of the case according to Embodiment 1. Figure 4 is a side view of the case according to Embodiment 1. Figure 5 is a front view of the case according to Embodiment 1. Figure 6 is an external perspective view showing a part of the case according to Embodiment 1. Figure 7 is a side view showing a part of the case according to Embodiment 1, and is an enlarged view of the area 70 shown in Figure 4. Figure 8 is a cross-sectional view along the line VIII-VIII shown in Figure 7.

[0018] As shown in Figures 3 to 5, the case 10 has a case housing 12 having an opening 11 and a substrate support portion 15 that supports the substrate 21. The case housing 12 has a bottom wall portion 13 and a side wall portion 14. The substrate support portion 15 is formed inside the case housing 12 and protrudes from the bottom wall portion 13 toward the opening 11.

[0019] The side wall portion 14 includes a plurality of side wall portions 141, 142, 143, and 144. The side wall portions 141 and 142 are positioned opposite each other, and the side wall portions 143 and 144 are positioned opposite each other. Each side wall portion 141 and 142 has a plurality of engaging pieces 5 that are cantilevered and supported in a region protruding from the mounting panel 40.

[0020] For example, Figure 4 shows that multiple engaging pieces 5 are cantilevered and supported in a region 142a of the side wall portion 142 that protrudes from the mounting panel 40. Also, Figure 6 shows that multiple engaging pieces 5 are cantilevered and supported in a region 141a of the side wall portion 141 that protrudes from the mounting panel 40. These multiple engaging pieces 5 extend towards the rear of the mounting panel 40, that is, toward the bottom wall portion 13 of the case housing 12.

[0021] As shown in Figures 6 to 8, each engaging piece 5 has a support end 51 that is continuous with the corresponding region of the side wall portion 141a, 142a that protrudes from the mounting panel 40. Each engaging piece 5 also has an extended portion 52 whose base end is continuous with the support end 51 and extends toward the rear of the mounting panel 40, and a protruding portion 53 that is continuous with the tip of the extended portion 52 and protrudes toward the interior of the case housing 12. The engaging piece 5 is formed by forming a U-shaped slit 6 in the side wall portion 14.

[0022] The extended portion 52 is elastic and bends when a force perpendicular to the wall surface of the side wall portion 14 is applied. Thus, because the extended portion 52 bends due to external forces, it can also be called a deflecting column. As shown in Figures 6 and 8, the protruding portion 53 has an inclined surface 53a that protrudes inward into the case 10 as it moves towards the rear of the mounting panel 40, and a substrate support surface 53b that supports the substrate 21. The inclined surface 53a has the function of guiding the substrate 21 and can also be called a guide surface. The substrate support surface 53b is a flat surface and contacts the main surface 21a of the substrate 21 when the substrate 21 is attached to the case 10.

[0023] The process of attaching the circuit board unit 20 to the case 10 will now be described. Figure 9 is a diagram illustrating the process of attaching the circuit board unit to the case according to Embodiment 1. Note that in Figure 9, only the circuit board 21 of the circuit board unit 20 is shown for ease of understanding.

[0024] As shown in Figure 9, an opening 91 is formed between the engaging piece 5 formed on the side wall portion 141 and the engaging piece 5 formed on the side wall portion 142. The width W1 of this opening 91 is the distance between the inclined apex 53c of the protruding portion 53 of the engaging piece 5 cantilevered on the side wall portion 141 and the inclined apex 53c of the protruding portion 53 of the engaging piece 5 cantilevered on the side wall portion 142, in the direction in which the side wall portion 141 and the side wall portion 142 face each other.

[0025] As shown in Figure 9, when the substrate 21 is inserted through the opening 11 of the case 10 and moved toward the bottom wall portion 13 of the case 10, both ends of the substrate 21 come into contact with the inclined surfaces 53a formed on the protruding portions 53 of the engaging piece 5. In this state, if the substrate 21 is further moved toward the bottom wall portion 13 of the case 10, the elasticity of the stretched portion 52 causes the stretched portion 52 to displace outward from the side wall portion 14, and the width W1 of the opening 91 is displaced. As a result, the width W1 of the opening 91 increases. At this time, the stress applied to the substrate 21 is directly proportional to the amount of displacement of the width W1 of the opening 91, and increases as the amount of displacement of the width W1 of the opening 91 increases.

[0026] When the substrate 21 passes the inclined apex 53c of the protrusion 53, the force applied from the substrate 21 to the protrusion 53 of the engaging piece 5 is eliminated. As a result, the width W1 of the opening 91 returns to its state before the substrate 21 was inserted into the case 10, due to the elasticity of the extended portion 52 of the engaging piece 5. The substrate 21, having passed the inclined apex 53c of the protrusion 53, is then fixed between the substrate support surface 53b of the protrusion 53 and the substrate support portion 15.

[0027] Thus, when the substrate 21 is attached to the case 10, the stress applied to the substrate 21 when displacement occurs in the opening 91 is directly proportional to the amount of displacement of the width W1 of the opening 91, but decreases inversely proportional to the cube of the depth D1 of insertion of the substrate 21 into the case 10, with the support end 51 of the engaging piece 5 as the base point. Therefore, by increasing the length of the extension portion 52 and the distance from the support end 51 to the inclined apex 53c, the stress applied to the substrate 21 when it is attached to the case 10 can be effectively relieved.

[0028] The engaging piece 5 is cantilevered to regions 141a and 142a of the side wall 14 that protrude from the mounting panel 40, and extends toward the rear of the mounting panel 40. This allows the engaging piece 5 to be made longer, even in situations where it would be impossible to make the engaging piece 5 longer if, for example, the engaging piece 5 were to protrude from the bottom wall 13 toward the opening 11, by cantilevering the engaging piece 5 to regions 141a and 142a of the side wall 14. As a result, it is possible to reduce the stress applied to the substrate 21 while suppressing an increase in the size of the electronic indicator 1.

[0029] Figure 10 is a diagram illustrating the stress applied to the substrate by the engaging piece when it is assumed that the engaging piece protrudes from the bottom wall of the case according to Embodiment 1 toward the opening. Figure 11 is a diagram illustrating the stress applied to the substrate by the engaging piece according to Embodiment 1.

[0030] In the engaging piece 5' shown in Figure 10, the deeper the insertion depth of the substrate 21 into the case 10, the more the substrate 21 moves toward the support end 51' of the engaging piece 5'. Therefore, the deeper the insertion depth of the substrate 21 into the case 10, the greater the stress on the substrate 21 due to the deflection of the extended portion 52'. Also, the inclined surface 53a' of the projection 53' formed at the tip of the engaging piece 5' is inclined away from the extended portion 52' in the direction of insertion of the substrate 21. Therefore, in the engaging piece 5' shown in Figure 10, the distance L2 from the support end 51' to the inclined apex 53c' formed on the projection 53' becomes shorter than the length L1 of the engaging piece 5'.

[0031] In the engaging piece 5 according to Embodiment 1, as shown in Figure 11, the deeper the insertion depth of the substrate 21 into the case 10, the further the substrate 21 moves toward the tip side of the engaging piece 5. Therefore, the deeper the insertion depth of the substrate 21 into the case 10, the smaller the stress on the substrate 21 due to the deflection of the extended portion 52. In addition, the inclined surface 53a of the protruding portion 53 formed at the tip of the engaging piece 5 is inclined away from the extended portion 52 in the direction of insertion of the substrate 21, but the distance from the support end 51 to the inclined apex 53c formed on the protruding portion 53 is equal to the length L of the engaging piece 5.

[0032] Thus, with the engaging piece 5', the stress on the substrate 21 due to the deflection of the extended portion 52' increases as the depth of insertion of the substrate 21 into the case 10 increases. However, with the engaging piece 5, the stress due to the deflection of the extended portion 52 decreases as the depth of insertion of the substrate 21 into the case 10 increases. Also, assuming that the length L1 of the engaging piece 5' shown in Figure 10 and the length L of the engaging piece 5 shown in Figure 11 are the same, if the tip of the engaging pieces 5 and 5' is displaced by a displacement amount I1, the force P1' applied to the engaging piece 5' becomes greater than the force P1 applied to the engaging piece 5. Therefore, with the engaging piece 5 according to Embodiment 1, the stress applied to the substrate 21 can be reduced compared to the engaging piece 5'.

[0033] Furthermore, since the support end 51 of the engaging piece 5 is positioned to protrude forward from the mounting panel 40 within the side wall portion 14, the position of the engaging piece 5 can be shifted forward compared to the case where the engaging piece 5 protrudes from the bottom wall portion 13. As a result, the length of the electronic indicator 1 in the depth direction can be shortened compared to the case where the engaging piece 5 protrudes from the bottom wall portion 13, thus enabling miniaturization.

[0034] Furthermore, if miniaturization of the product is to be prioritized over the substrate holding force, which is the force that holds the substrate 21 to the case 10, the cross-sectional area of ​​the extended portion 52 in the engaging piece 5 can be reduced and the length of the extended portion 52 can be shortened, within the range where the necessary strength can be ensured. This makes it possible to shorten the length from the mounting surface 40a to the bottom wall portion 13, thereby miniaturizing the electronic indicator 1.

[0035] Furthermore, if prioritizing the reduction of substrate stress, which is the stress applied to the substrate 21, over substrate holding force, the cross-sectional area of ​​the extended portion 52 in the engaging piece 5 can be reduced to the extent that the necessary strength can be secured. This makes it possible to shorten the length of the electronic indicator 1 in the depth direction, thereby enabling miniaturization of the electronic indicator 1.

[0036] Furthermore, the electronic indicator 1 can be easily assembled by inserting the circuit board unit 20 having the circuit board 21 through the opening 11 of the case 10 and then fitting the cover 30 into the case 10.

[0037] Furthermore, by increasing the length of the engaging piece 5, the force applied to the substrate 21 by the engaging piece 5 during the process of fixing the substrate 21 to the case 10 can be reduced, allowing the substrate 21 to be easily fixed to the case 10 with minimal force. In addition, the vibration and sound of the substrate support surface 53b returning the moment the substrate 21 exceeds the inclined apex 53c allows the operator to easily recognize the completion of the insertion process.

[0038] Furthermore, when the substrate 21 is fixed to the case 10, the stress due to the deflection of the extended portion 52 in the engaging piece 5 does not apply stress to the substrate 21. Therefore, the stress applied to the substrate 21 does not change depending on the worker's skill level. As a result, by performing the assembly work according to the prescribed procedure, the worker can avoid generating stress on the substrate 21 that exceeds the specified limit, thereby improving work efficiency.

[0039] Figure 12 is a side view of an electronic indicator instrument according to Embodiment 1. Figure 13 is a cross-sectional view along the line XIII-XIII shown in Figure 12. Figure 14 is a partially enlarged view of Figure 13, and is an enlarged view of the region 71 shown in Figure 13.

[0040] As shown in Figures 12 to 14, the cover 30 has a displacement suppression portion 34 that faces a plurality of engaging pieces 5 on the outside of the side wall portion 14 and suppresses the outward displacement of the side wall portion 14 by contacting the plurality of engaging pieces 5. The displacement suppression portion 34 extends toward the mounting surface 40a and has a plurality of rib portions 34a that each face outward toward the corresponding engaging piece 5 among the plurality of engaging pieces 5.

[0041] Each rib portion 34a faces the region of the engaging piece 5 from the support end 51 to the middle of the extended portion 52. In other words, each rib portion 34a faces the region of the engaging piece 5 in front of the mounting surface 40a. As a result, when an outward force from the side wall portion 14 acts on the engaging piece 5, the region of the engaging piece 5 from the support end 51 to the middle of the extended portion 52 presses against the rib portion 34a.

[0042] As shown in Figure 14, the thickness T1 of the rib portion 34a is greater than the thickness T2 of the engaging piece 5. In the example shown in Figure 14, the thickness T1 of the rib portion 34a is more than twice the thickness T2 of the engaging piece 5. Thus, because the thickness T1 of the rib portion 34a is greater than the thickness T2 of the engaging piece 5, when an outward force is applied to the protruding portion 53 of the engaging piece 5, the displacement of the region of the engaging piece 5 from the support end 51 to the middle of the extended portion 52 is prevented by the rib portion 34a.

[0043] Therefore, when an external force is applied to the protruding portion 53 of the engaging piece 5, the region of the engaging piece 5 that does not face the engaging piece 5 mainly becomes the region that is displaced outward of the side wall portion 14, so the displaced region becomes shorter. As a result, compared with the case where the displacement suppressing portion 34 is not provided on the cover 30, the force required to displace the protruding portion 53 of the engaging piece 5 outward increases, so the fixing strength of the substrate 21 to the case 10 can be enhanced.

[0044] In addition, by making the outer surface of the side wall portion 14 and the outer surface of the engaging piece 5 substantially flush with the surface of the displacement suppressing portion 34, the displacement suppressing portion 34 can suppress the outward bending of the extending portion 52 of the engaging piece 5 due to the stress applied from the substrate 21 to the substrate support surface 53b. Therefore, the fixing strength of the substrate 21 to the case 10 can be further enhanced.

[0045] Further, by arranging the load generated on the substrate 21 due to tightening to the terminal block or the like so as to be on the inner side of the case 10 rather than the center line of gravity of the extending portion 52, when a load from the substrate 21 is applied to the substrate support surface 53b, the extending portion 52 is convexly curved outward toward the side wall portion 14 . Therefore, the extending portion 52 can continuously apply a load to the rib portion 34a so that the extending portion 52 adheres to the rib portion 34a, and the fixing strength of the substrate 21 to the case 10 can be further enhanced. The center line of gravity of the extending portion 52 described above is the center line of gravity of the extending portion 52 in the direction orthogonal to the main surface 21a of the substrate 21.

[0046] Furthermore, the displacement suppressing portion 34 covers, from the outside, the region of the slit 6 formed in the side wall portion 14 that is exposed forward from the mounting surface 40a of the mounting panel 40. Thereby, even when the support end 51 of the engaging piece 5 is in front of the mounting surface 40a of the mounting panel 40, it is possible to prevent foreign matters such as insects or dust from entering the inside of the electronic indicating instrument 1 through the slit 6.

[0047] Further, when the case 10 and the cover 30 are fitted together, the displacement suppressing portion 34 is formed on the cover housing 31 such that the tip of the rib portion 34a of the displacement suppressing portion 34 is substantially flush with the mounting surface 40a of the mounting panel 40. As a result, since the slit 6 is covered by the displacement suppressing portion 34 in a sealed state, it is possible to accurately prevent foreign matters such as insects or dust from entering the inside of the electronic indicating instrument 1 through the slit 6.

[0048] As described above, the electronic indicating instrument 1 according to the first embodiment includes a case (10) and a cover (30). The case (10) is attached to the mounting panel (40) in a state where a part thereof protrudes in front of the mounting panel (40), and the substrate (21) is housed inside through an opening (11) located at a position protruding from the mounting panel (40). The cover (30) covers the opening (11) of the case (10). The case (10) is supported in a cantilever manner in regions (141a, 142a) protruding from the mounting panel (40) and extends toward the rear of the mounting panel (40), and each has a protruding portion (53) protruding toward the inside of the case (10) at the tip, and includes a side wall portion (14) in which a plurality of engaging pieces (5) that engage with the substrate (21) are formed. Thereby, while suppressing the increase in size of the electronic indicating instrument 1, it is possible to reduce the stress applied to the substrate (21).

[0049] Further, the cover (30) has a displacement suppressing portion (34) that faces the outside of the plurality of engaging pieces (5) and the side wall portion (14), and suppresses the displacement of the side wall portion (14) outward by contacting the plurality of engaging pieces (5). As a result, since the force required to remove the substrate (21) from the case (10) increases, when the substrate (21) is inserted into the case (10), while effectively relaxing the stress applied to the substrate (21), it is possible to suppress the fixing of the substrate (21) by the case (10) from being released by an unintended force.

[0050] Further, the side wall portion (14) has a plurality of slits (6) provided for forming the plurality of engaging pieces (5). The displacement suppressing portion (34) covers the plurality of slits (6) from the outside of the side wall portion (14). Thereby, it is possible to prevent foreign matters such as insects or dust from entering the inside of the electronic indicating instrument 1 through the slits (6). [[ID=ll]]

[0051] Furthermore, the protruding portion 53 has an inclined surface 53a that moves inward towards the inside of the case 10 as it approaches the rear of the mounting panel 40. This reduces the stress applied to the substrate 21.

[0052] Furthermore, the case 10 includes a substrate support portion 15 that abuts against one main surface 21a of the substrate 21. The protruding portion 53 faces the other main surface 21b of the substrate 21 and has a substrate support surface 53b that supports the substrate 21 together with the substrate support portion 15. As a result, for example, when a force is applied from the substrate 21, the direction of such force is in line with the extension direction of the engaging piece 5, and the force required to detach the substrate 21 from the case 10 can be made greater than the force required to fix the substrate 21 to the case 10. Therefore, the substrate 21 can be stably fixed to the case 10.

[0053] The configurations shown in the above embodiments are merely examples of the content of the present invention, and can be combined with other known technologies. It is also possible to omit or modify parts of the configuration without departing from the spirit of the present invention.

[0054] 1 Electronic indicator, 5, 5' Engaging piece, 6 Slit, 10 Case, 11 Opening, 12 Case housing, 13 Bottom wall, 14, 141, 142, 143, 144 Side wall, 15, 22 Substrate support, 16 Protruding part, 20 Substrate unit, 21 Substrate, 21a, 21b Main surface, 30 Cover, 31 Cover housing, 32 Display unit, 33 Operation button, 34 Displacement suppression part, 34a Rib part, 40 Mounting panel, 40a Mounting surface, 51, 51' Support end, 52, 52' Extended part, 53, 53' Protruding part, 53a, 53a' Inclined surface, 53b Substrate support surface, 53c, 53c' Inclined apex, 70, 71, 141a, 142a Region, 91 Opening, D1 Depth, I1; displacement, L2; distance, P1, P1'; force, T1, T2; thickness.

Claims

DEPCT651. Electronic indicator assembled with: a casing to be attached to the mounting panel in a position partially protruding forward from the mounting panel and to hold the substrate inside through an opening located at the position protruding from the mounting panel and a casing to enclose the opening of the casing, in which the casing includes a side wall provided with more than one attachment point to be attached to the substrate, which more than one attachment point is supported in the form of cantilever beams by the area protruding from the mounting panel and in which more than one attachment point extends toward the rear of the mounting panel and in which the edges of each piece include an inward protrusion of the casing.

2. Electronic indicator according to claim 1, in which the casing includes an anti-removal restraint facing more than one attachment point on the outside of the side wall and to restrain the outward displacement of the side wall by being supported on the attachment point.3.

4. Any of the electronic indicators under claim 1 through 3 where the enclosure includes an overhang, including an overhang, beveled surface directed toward the inward side of the enclosure while toward the end of the mounting panel.

5. Any of the electronic indicators under claim 4 where the enclosure includes a substrate support to rest on the main surface of the substrate and an overhang, including a substrate support surface directed toward another main surface of the substrate and to support the substrate together with the substrate support.