Terminal Block

Abstract

One method of the present disclosure provides a terminal block that can suppress water from being retained in a recess formed by ribs of a base portion. According to one method of the present disclosure, the terminal block (10) comprises: a base portion (21) fixed to a housing in a manner that closes an opening of the housing of a machine; and an annular sealing member (25) disposed on the back side of the base portion (21). When the terminal block (10) is assembled relative to the housing, the sealing member (25) is clamped and compressed by the housing and the base portion (21) at a position surrounding the opening. Ribs (31, 32) and recesses (41 to 43) formed as spaces surrounded by the ribs (31, 32) are formed on the surface side of the base portion (21). Dewatering holes (47 to 49) are formed at the outer side of the sealing member (25) in each recess (41 to 43).

Description

Technical Field

[0001] The present disclosure relates to a terminal block. Background Art

[0002] In the past, as a terminal block mounted on a machine, for example, the terminal block described in Patent Document 1 has a base portion fixed to the housing in a manner that closes the opening of the housing of the machine, and an annular sealing member disposed on the back of the base portion. The sealing member is disposed between the base portion and the housing of the machine in a compressed state. The base portion and the housing of the machine are sealed by the sealing member, and water ingress into the housing opening can be suppressed. In addition, a plurality of reinforcing ribs are erected on the surface side of the base portion on the side opposite to the side where the sealing member is disposed, and the rigidity of the base portion is improved by those ribs. As a result, the base portion can ensure the rigidity that can withstand the reaction force received from the sealing member.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2011-160619 Summary of the invention

[0006] Problems to be solved by the invention

[0007] In the terminal block as described above, a recessed portion is formed on the surface side of the base portion, and the recessed portion is formed as a space surrounded by the reinforcing ribs. Therefore, when water splashes on the terminal block, there is a possibility that the water will accumulate in the recessed portion.

[0008] Therefore, an object is to provide a terminal block capable of suppressing water from accumulating in a recess formed by a rib of a base portion.

[0009] Solutions to Solve Problems

[0010] The terminal block disclosed herein is arranged on a housing of a machine, and the machine is mounted on a vehicle. The terminal block comprises: a base portion fixed to the housing in a manner that closes an opening of the housing; and an annular sealing member arranged on the back side of the base portion. When the terminal block is assembled relative to the housing, the sealing member is clamped and compressed by the housing and the base portion at a position surrounding the opening. The base portion comprises a rib erected on a surface side on the side opposite to a side on which the sealing member is arranged, and a recessed portion formed as a space surrounded by the rib, and a dehydration hole is formed in the recessed portion at an outer position of the sealing member.

[0011] Effects of the Invention

[0012] According to the present disclosure, it is possible to provide a terminal block capable of suppressing water from stagnating in a recess formed by a rib of a base portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a perspective view of a terminal block according to the embodiment.

[0014] Figure 2 This is a top view of a terminal block of this type.

[0015] Figure 3 This is a perspective view of the terminal block of this type as seen from the back side.

[0016] Figure 4 yes Figure 2 The 4-4 line section view in. DETAILED DESCRIPTION

[0017] [Description of Embodiments of the Present Disclosure]

[0018] First, embodiments of the present disclosure will be described below.

[0019] The terminal block disclosed herein,

[0020] [1] A housing provided in a machine, wherein the machine is mounted on a vehicle, wherein the terminal block comprises: a base portion fixed to the housing in a manner that closes an opening of the housing; and an annular sealing member provided on the back side of the base portion, wherein when the terminal block is assembled relative to the housing, the sealing member is clamped and compressed by the housing and the base portion at a position surrounding the opening, and the base portion comprises a rib rising from a surface side opposite to a side on which the sealing member is provided, and a recessed portion formed as a space surrounded by the rib, wherein a dehydration hole is formed in the recessed portion at an outer position of the sealing member.

[0021] According to this structure, water immersed in the recess formed by the ribs of the base can be discharged to the outside of the recess through the dehydration hole. Thus, it is possible to prevent water from being retained in the recess. In addition, because the dehydration hole is provided at the outer side of the sealing member, the water in the recess is discharged to the outside of the sealing area of ​​the sealing member through the dehydration hole. Thus, it is possible to prevent the water discharged from the dehydration hole from flowing to the inner side of the sealing member, that is, the opening side of the housing of the machine.

[0022] [2] Preferably, the rib includes a peripheral rib, the peripheral rib constitutes the periphery of the base portion, and the dewatering hole is formed in the peripheral rib. According to this structure, a part of the water in the recess formed by the peripheral rib can be discharged to the outside of the peripheral rib of the base portion through the dewatering hole.

[0023] [3] Preferably, the bottom wall of the recess having the dewatering hole in the peripheral rib overlaps with the sealing member. That is, when the bottom wall of the recess overlaps with the sealing member, water can be more reliably discharged to the outside of the sealing member by providing the dewatering hole in the peripheral rib.

[0024] [4] Preferably, the recess includes: a first recess having a bottom wall overlapping the sealing member and having the dehydration hole in the peripheral rib; and a second recess having a bottom wall outside the sealing member, the dehydration hole in the second recess being formed in the bottom wall of the second recess.

[0025] According to this configuration, in the second recess having the bottom wall outside the sealing member, the dehydration hole is formed in the bottom wall. Therefore, the dehydration hole in the second recess can be easily formed.

[0026] [5] Preferably, the base is formed of a synthetic resin material. Since the rigidity of the synthetic resin material is relatively low, when the base is formed of the synthetic resin material, in order to ensure the rigidity to withstand the reaction force from the sealing member, it is necessary to provide a reinforcing rib (i.e., a recessed portion) on the base. Therefore, in order to solve the problem of water retention in the recessed portion caused by the provision of the ribs, it becomes more important to form a dewatering hole in the recessed portion.

[0027] [6] Preferably, the recessed portion is provided in plurality, and the dewatering hole is formed in each of the recessed portions. According to this configuration, the dewatering hole can suppress water from being accumulated in each of the plurality of recessed portions.

[0028] [Details of the embodiments of the present disclosure]

[0029] The following is a reference to the attached Figure 1 While explaining a specific example of the terminal block disclosed in the present invention. In addition, the present invention is not limited to these examples, but is intended to include all changes in the meaning and scope equivalent to the claims as shown in the claims. In addition, parallel in the present disclosure does not mean parallel in the strict sense, but means a range that can be regarded as parallel within the scope that can exert the effect of the present invention. In addition, vertical in the present disclosure does not mean vertical in the strict sense, but means a range that can be regarded as vertical within the scope that can exert the effect of the present invention.

[0030] like Figure 1 As shown, the terminal block 10 of this embodiment is assembled in the housing 11 of the machine, and the machine is mounted on the vehicle. In addition, the X axis of the mutually orthogonal XYZ axes in the figure represents the length direction X of the terminal block 10, the Y axis represents the width direction Y of the terminal block 10, and the Z axis represents the height direction Z of the terminal block 10.

[0031] The terminal block 10 includes a base portion 21, and the base portion 21 is fixed to the assembly surface 12 of the shell 11. The assembly surface 12 of the shell 11 of the present embodiment is formed in a flat shape. In addition, the assembly surface 12 of the present embodiment is configured to face upward and intersect with the gravity direction. An opening 13 that connects the inside and outside of the shell 11 is formed on the assembly surface 12. The base portion 21 is fixed to the assembly surface 12 in a manner that closes the opening 13 of the shell 11. In addition, the terminal block 10 is assembled to the assembly surface 12 in a manner that the height direction Z is perpendicular to the assembly surface 12. In addition, the base portion 21 of the present embodiment is, for example, an injection-molded product made of a synthetic resin material.

[0032] (Base 21)

[0033] like Figure 1 and Figure 2 As shown, the base portion 21 is formed into a substantially rectangular shape when viewed from above (viewed in the vertical direction relative to the assembly surface 12, in the present embodiment, viewed from the height direction Z). In addition, in the following description, viewing from the height direction Z of the terminal block 10 is simply referred to as "viewed from above". In addition, in the following description, the side of the base portion 21 that is opposite to the housing 11 is referred to as the "back side", and the opposite side thereof is referred to as the "front side".

[0034] A cylindrical collar 22 is embedded in each of the four corners of the base portion 21 when viewed from above by insert molding. Each collar 22 is made of a material (e.g., a metal material) having a higher rigidity than the synthetic resin material forming the base portion 21. Each collar 22 is fixed to the assembly surface 12 by bolts (not shown). Thus, the base portion 21 is fixed to the assembly surface 12. In addition, the central axis of the collar 22 in this embodiment (i.e., the assembly direction of the bolts) is parallel to the height direction Z of the terminal block 10.

[0035] The base portion 21 has a connector portion 23 in the center portion when viewed from above. The connector portion 23 has a plurality of terminals 24 arranged so as to penetrate from the surface side to the back side of the base portion 21. The plurality of terminals 24 are arranged in a row along the longitudinal direction X of the terminal block 10. One end portion of each terminal 24 (the end portion on the back side of the base portion 21) is inserted into the interior of the housing 11 through the opening 13, and is connected to a terminal (not shown) on the machine side provided in the housing 11. In addition, the other end portion of each terminal 24 (the end portion on the surface side of the base portion 21) is connected to a terminal of a counterpart connector (not shown) installed from the reverse side of the machine relative to the connector portion 23.

[0036] (Sealing member 25)

[0037] like Figure 3 and Figure 4As shown, the terminal block 10 is provided with a sealing member 25 on the back side of the base portion 21. The sealing member 25 is formed of an elastic material such as rubber or an elastomer. The sealing member 25 includes a sealing body portion 26 that forms a ring shape when viewed from above, and a plurality of fixing portions 27 that extend from the sealing body portion 26 toward the inner circumference. Each fixing portion 27 is fixed to a fixing pin 28 that extends along the height direction Z on the back side of the base portion 21.

[0038] The sealing body 26 is formed in a shape larger than the opening 13 in a plan view so as to surround the periphery of the opening 13 of the housing 11. When the base 21 is fixed to the housing 11, the sealing body 26 is sandwiched by the assembly surface 12 of the housing 11 and the base 21 at a position surrounding the opening 13 and is formed in a compressed state. Thus, the base 21 and the assembly surface 12 are sealed, and water intrusion into the opening 13 can be suppressed.

[0039] (Ribs 31, 32)

[0040] like Figure 1 and Figure 2 As shown in FIG. 1 , the base portion 21 has a plurality of reinforcing ribs 31, 32 erected on the surface side and a plurality of recesses 41, 42, 43 formed by the plurality of ribs 31, 32. In addition, a cylindrical fitting portion 44 constituting the connector portion 23 is formed on the surface side of the base portion 21. The fitting portion 44 is a portion where the counterpart connector fits. The plurality of ribs 31, 32 and the plurality of recesses 41 to 43 are formed around the fitting portion 44.

[0041] The plurality of ribs 31 and 32 are erected so as to extend toward the surface side in the height direction Z. The plurality of ribs 31 and 32 include: an outer peripheral rib 31 constituting the outer periphery of the base portion 21 in a plan view; and an intermediate rib 32 formed between the outer peripheral rib 31 and the fitting portion 44. The outer peripheral rib 31 is located outside the sealing body portion 26 in a plan view (see FIG. Figure 2 ).

[0042] The plurality of recesses 41 to 43 formed as spaces surrounded by the various ribs 31 and 32 each have a bottom wall 45 and a side wall 46 extending from the bottom wall 45 to the surface side in the height direction Z, and the opposite side (surface side) of the bottom wall 45 in each recess 41 to 43 is open. That is, the side wall 46 in each recess 41 to 43 forms a ring shape constituting a closed loop in a plan view. In addition, the side wall 46 of each recess 41 to 43 of the present embodiment is constituted by a combination of the outer peripheral rib 31, the intermediate rib 32, and the side portion of the fitting portion 44.

[0043] The plurality of recessed portions 41 to 43 include a plurality of first recessed portions 41 , a plurality of second recessed portions 42 , and a plurality of third recessed portions 43 .

[0044] like Figure 2 and Figure 4As shown, the bottom wall 45 of the first recess 41 overlaps with the sealing body 26 when viewed from above. A portion of the side wall 46 of the first recess 41 is formed by the peripheral rib 31. In addition, a dehydration hole 47 that connects the inside of the first recess 41 and the outside of the terminal block 10 is formed in the peripheral rib 31 as the side wall 46 of the first recess 41. The dehydration hole 47 is formed on the outside of the sealing body 26 when viewed from above. In addition, the peripheral rib 31 in which the dehydration hole 47 of the present embodiment is formed extends along the longitudinal direction X of the terminal block 10, and the dehydration hole 47 penetrates the peripheral rib 31 in the width direction Y of the terminal block 10. In addition, the position of the dehydration hole 47 in the height direction Z is set in such a way that a portion of the inner side surface of the dehydration hole 47 is approximately in the same position as the upper surface of the bottom wall 45.

[0045] like Figure 2 As shown, the bottom wall 45 of the second recess 42 is located outside the sealing body 26 in a plan view. A dehydration hole 48 is formed in the bottom wall 45 of the second recess 42 and penetrates the bottom wall 45 in the height direction Z. That is, the dehydration hole 48 is formed outside the sealing body 26 in a plan view, and connects the inside of the second recess 42 and the outside of the terminal block 10.

[0046] In addition, the bottom wall 45 of the third recess 43 partially overlaps with the sealing body 26 in a plan view, and a part of it is located outside the sealing body 26 in a plan view. A dewatering hole 49 is formed in the bottom wall 45 of the third recess 43 at a location located outside the sealing body 26, and penetrates the bottom wall 45 in the height direction Z. That is, the dewatering hole 49 is formed outside the sealing body 26 in a plan view, and connects the inside of the third recess 43 with the outside of the terminal block 10. In addition, the third recess 43 is a recess in which the bottom wall 45 overlaps with the sealing body 26 in a plan view, similarly to the first recess 41, but is different from the first recess 41 in that a region outside the sealing body 26 where the dewatering hole 49 can be formed exists in the bottom wall 45.

[0047] The operation of this embodiment will be described.

[0048] The base portion 21 is provided with reinforcing ribs 31 and 32 extending in the height direction Z. Therefore, when the collars 22 are connected and fixed to the assembly surface 12, it is possible to prevent the portion between the collars 22 in the base portion 21 from being bent and deformed so as to become convex toward the surface side due to the reaction force from the sealing body portion 26. In particular, in the present embodiment, the base portion 21 is formed of a synthetic resin material having relatively low rigidity, so it is more important to increase the rigidity of the base portion 21 using the ribs 31 and 32.

[0049] In addition, recesses 41 to 43 are formed on the surface side of the base portion 21 along with the ribs 31 and 32. When the device in which the terminal block 10 is assembled is installed in a flooded area of ​​a vehicle, water may penetrate into the recesses 41 to 43. However, the water that penetrates into the recesses 41 to 43 is discharged to the outside of the recesses 41 to 43 through the dewatering holes 47 to 49 formed in the recesses 41 to 43, respectively.

[0050] The effects of this embodiment will be described.

[0051] (1) Dewatering holes 47 to 49 are formed at positions outside the sealing member 25 in the recesses 41 to 43 formed on the surface side of the base portion 21. According to this configuration, water that has entered the recesses 41 to 43 of the base portion 21 can be discharged to the outside of the recesses 41 to 43 through the dewatering holes 47 to 49. Thus, it is possible to suppress water from being retained in the recesses 41 to 43.

[0052] In addition, since the dewatering holes 47 to 49 in the recesses 41 to 43 are provided at the outer side of the sealing member 25, the water in the recesses 41 to 43 is discharged to the outer side of the sealing area (sealing body 26) of the sealing member 25 through the dewatering holes 47 to 49. Thus, it is possible to prevent the water discharged from the dewatering holes 47 to 49 from flowing to the inner side of the sealing body 26, that is, to the side of the opening 13 of the housing 11 of the device.

[0053] (2) The plurality of ribs formed on the base portion 21 include the outer peripheral rib 31 constituting the outer periphery of the base portion 21, and the dewatering hole 47 in the first recess 41 constituting a part of the side wall 46 by the outer peripheral rib 31 is formed in the outer peripheral rib 31. According to this configuration, water in the first recess 41 can be discharged to the outside of the outer peripheral rib 31 of the base portion 21 through the dewatering hole 47.

[0054] (3) The bottom wall 45 of the first recessed portion 41 having the dewatering hole 47 in the peripheral rib 31 overlaps with the sealing member 25 in a plan view. That is, when the recessed portion of the base portion 21 overlaps with the sealing member 25 in a plan view, by providing the dewatering hole 47 in the peripheral rib 31, water can be more reliably discharged to the outside of the sealing member 25.

[0055] (4) The plurality of recesses formed in the base portion 21 include the second recess 42, the second recess 42 having a bottom wall 45 located outside the sealing member 25 in a plan view, and the dehydration hole 48 in the second recess 42 is formed in the bottom wall 45 of the second recess 42. Therefore, the penetration direction of the dehydration hole 48 can be made consistent with the vertical direction of the ribs 31 and 32 (the height direction Z in the present embodiment, the demolding direction), so that the dehydration hole 48 in the second recess 42 can be easily formed.

[0056] (5) When the base portion 21 is formed of a synthetic resin material, it is necessary to provide the base portion 21 with reinforcing ribs 31 and 32 (i.e., recesses 41 to 43) in order to ensure rigidity that can withstand the reaction force received from the sealing member 25. Therefore, in order to solve the problem of water stagnation in the recesses 41 to 43 caused by the provision of the ribs 31 and 32, it is more important to form dewatering holes 47 to 49 in the recesses 41 to 43.

[0057] This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be combined and implemented with each other within the scope of no technical contradiction.

[0058] In the second recess 42, a dewatering hole 48 may be formed in the outer peripheral rib 31 constituting a part of the side wall 46 of the second recess 42. Similarly, in the third recess 4, a dewatering hole 49 may be formed in the outer peripheral rib 31 constituting a part of the side wall 46 of the third recess 43.

[0059] The shapes of the ribs 31 and 32 and the shapes of the recesses 41 to 43 in the base portion 21 are not limited to the above-described embodiment, and can be appropriately changed according to the size, shape, rigidity of the forming material, etc. of the base portion 21 and the connector portion 23. In addition, the shapes of the sealing body portion 26 of the sealing member 25 are not limited to the above-described embodiment, and can be appropriately changed according to the size, etc. of the base portion 21 and the connector portion 23. That is, it is also applicable to a configuration of the base portion 21 different from the above-described embodiment, such as a configuration in which the first recess 41 overlapping the sealing member 25 does not exist when viewed from above, and a configuration in which the second recess 42 not overlapping the sealing member 25 does not exist when viewed from above.

[0060] Dewatering holes may be formed in all of the plurality of recesses 41 to 43 formed in the base portion 21. According to this configuration, it is possible to suppress water from stagnating in each of the plurality of recesses 41 to 43 by the dewatering holes.

[0061] The material for forming the base portion 21 is not limited to the synthetic resin material, and may be a metal material such as aluminum.

[0062] The outer shape of the base portion 21 in a plan view is not limited to the above-described embodiment, and may be, for example, a substantially square shape, that is, a shape in which the dimension in the longitudinal direction X and the dimension in the width direction Y are substantially equal.

[0063] The fitting portion 44 of the terminal block 10 of the embodiment is sometimes referred to as a cover having a terminal storage chamber that can be a cylindrical shape and stores a plurality of terminals 24. The base portion 21 of the terminal block 10 of the embodiment is sometimes referred to as a flange that is integral with the cylindrical fitting portion 44 and extends in a predetermined in-plane direction that can be an XY plane. The cylindrical fitting portion 44 and the base portion 21 of the embodiment can be made of the same synthetic resin. Figure 3As shown, the sealing member 25 of the embodiment can be mounted on the lower surface or base surface of the base portion 21 that is configured to face the assembly surface 12 when the terminal block 10 is connected to the assembly surface 12. The base portion 21 can have an upper surface on the side opposite to the lower surface of the base portion 21 on which the sealing member 25 is mounted. The recesses 41, 42, 43 of the base portion 21 of the embodiment can each have a first opening that opens on the upper surface of the base portion 21. The recesses 41, 42, 43 can each have a second opening or a capillary opening that has an opening area smaller than the first opening on one or both of the outermost surface in the radial direction of the base portion 21 and the lower surface of the base portion 21. The dehydration holes 47, 48, 49 of the embodiment are representative examples of the second opening or the capillary opening of the recesses 41, 42, 43 that are configured to promote the discharge of water from the recesses 41, 42, 43.

[0064] The present disclosure includes the following embodiments. The reference figures of several constituent elements of the illustrated embodiments are marked not for limitation but to assist understanding. Some of the matters described in the following embodiments may be omitted, or several of the matters described in the following embodiments may be selected or extracted and combined.

[0065] [Supplementary Note 1] One aspect of the present disclosure is applicable to a terminal block (10) used together with a vehicle machine housing (11) including a terminal block assembly surface (12) having an opening (13), wherein the terminal block (10) can include:

[0066] A cylindrical cover (44) having a terminal storage chamber;

[0067] A plurality of conductive terminals (24) are stored in the terminal storage chamber;

[0068] The flange (21) is configured to install the terminal block (10) on the terminal block assembly surface (12) of the vehicle machine housing (11) and has an upper surface, a lower surface and an outermost surface in a radial direction; and

[0069] A plurality of recesses (41, 42, 43) are provided on the flange (21),

[0070] Each of the plurality of recesses (41, 42, 43) may have a first opening opened on the upper surface of the flange (21).

[0071] Each of the plurality of recesses (41, 42, 43) can have a second opening (47, 48, 49) smaller than the first opening on one or both of the outermost surface in the radial direction and the lower surface of the flange (21), and the second opening (47, 48, 49) can be configured to promote the discharge of water from the recesses (41, 42, 43).

[0072] [Supplementary Note 2] In one embodiment of the present disclosure, the lower surface (32) of the flange (21) can be configured to face the terminal block assembly surface (12) when the terminal block (10) is connected to the terminal block assembly surface (12).

[0073] [Supplementary Note 3] In one embodiment of the present disclosure, the terminal block (10) can be provided with an annular elastic seal (44) on the lower surface (32) of the flange (21).

[0074] Each of the second openings (47, 48, 49) of the plurality of recesses can open on the lower surface (32) of the flange (21) outside the outer contour of the annular elastic seal (44).

[0075] [Supplementary Note 4] In one aspect of the present disclosure, the terminal block (10) may further include:

[0076] A plurality of cylindrical collars (22) are respectively configured to engage with a plurality of connection elements for connecting the terminal block (10) to the terminal block assembly surface (12) of the vehicle machine housing (11), and are embedded in the flange (21).

[0077] Description of Reference Numerals

[0078] 10 Terminal block

[0079] 11 Housing

[0080] 12 Assembly surface

[0081] 13 Opening

[0082] 21 Base

[0083] 22 Ring

[0084] 23 Connector

[0085] 24 terminals

[0086] 25 Sealing member

[0087] 26 Sealing body

[0088] 27 Fixed part

[0089] 28 Fixing pin

[0090] 31 Peripheral ribs

[0091] 32 Middle rib

[0092] 41 1st recess

[0093] 42 2nd recess

[0094] 43 3rd recess

[0095] 44 Chimeric part

[0096] 45 bottom wall

[0097] 46 Sidewall

[0098] 47~49 Dehydration holes

[0099] X Length direction of terminal block

[0100] Y Terminal block width direction

[0101] Z Height direction of terminal block

Claims

1. A terminal block, provided on a housing of a device, the device being mounted on a vehicle, the terminal block comprising: A base portion fixed to the housing in a manner to close the opening of the housing; A cylindrical fitting portion is formed on a surface of the base portion and is fitted with a housing on the other side; and An annular sealing member is provided on the back side of the base portion. When the terminal block is assembled with respect to the housing, the sealing member is sandwiched and compressed by the housing and the base portion at a position surrounding the opening. The base portion includes a plurality of ribs rising on the surface side opposite to the side where the sealing member is provided, and a plurality of recessed portions formed as spaces surrounded by the plurality of ribs. The plurality of recesses are provided with dehydration holes at positions outside the sealing member. The plurality of ribs include an outer peripheral rib that is located outside the cylindrical fitting portion and constitutes the outer periphery of the base portion, and the dewatering holes of some of the plurality of recesses are formed in the outer peripheral rib.

2. The terminal block according to claim 1, wherein: The bottom wall of the recess having the dehydration hole in the outer peripheral rib overlaps with the sealing member.

3. The terminal block according to claim 2, wherein: The plurality of recesses include: a first recess having a bottom wall overlapping the sealing member and having the dehydration hole in the peripheral rib; and a second recess having a bottom wall outside the sealing member. The dehydration hole in the second recess is formed in a bottom wall of the second recess.

4. The terminal block according to claim 1, wherein: The multiple recesses include: a first recess, which overlaps with the sealing member and has the peripheral rib; and a second recess, which does not overlap with the sealing member and has the peripheral rib, wherein the first recess has a dehydration hole in the peripheral rib of the first recess, and the second recess does not have a dehydration hole in the peripheral rib of the second recess, but has a dehydration hole in the bottom wall of the second recess.

5. The terminal block according to any one of claims 1 to 4, wherein: The base portion is formed of a synthetic resin material.

6. The terminal block according to any one of claims 1 to 5, wherein: The dehydration holes are respectively formed in the plurality of recessed portions of the base portion.

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