Flow meter
A flow meter includes: a flat substrate; a housing that houses the substrate and has an open in at least one surface; a cover that covers the substrate and covers an open surface of the housing; a support that supports the substrate and is in contact with the cover and the substrate; and a fixing unit that connects the substrate and the housing, in which, in a first region and a second region formed by dividing the substrate into two parts at a center in a longitudinal direction, the support is disposed in the first region, and the fixing unit is disposed in the second region.
1. A flow meter, comprising:
a flat substrate;
a housing that houses the substrate and has an opening in at least one surface;
a cover that covers the substrate and covers the opening in the surface of the housing;
a support that supports the substrate and is in contact with the cover and the substrate;
a fixing unit that connects the substrate and the housing; and
an extending unit that is adjacent to the support, is disposed at an outer peripheral portion of the substrate, supports the substrate, and is in contact with the cover and the substrate;
wherein
in a first region and a second region formed by dividing the substrate into two parts at a center in a longitudinal direction, the support is disposed in the first region, and the fixing unit is disposed in the second region; and
wherein the fixing unit and the support are disposed at an end portion of the substrate.
2. The flow meter according to claim 1 , wherein
a Young's modulus of the support is 10 MPa or more and 1000 MPa or less.
3. The flow meter according to claim 1 , wherein
an area in which the support is in contact with the cover is smaller than an area in which the support is in contact with the substrate.
4. The flow meter according to claim 1 , wherein
the fixing unit also serves for electrical connection.
5. The flow meter according to claim 1 , wherein
the support is at least present on a front side of the substrate, and
the fixing unit is present on a back side of the substrate.
6. The flow meter according to claim 1 , wherein
the support includes a support fitting unit which is a concave unit or a convex unit on a surface in contact with the cover, and
the cover includes a cover fitting unit that is fitted to the support fitting unit.
7. The flow meter according to claim 1 , wherein
the longitudinal direction of the support is disposed in a transverse direction of the substrate,
a dimension of the support in the longitudinal direction is longer than a dimension of the substrate in the transverse direction, and
the housing includes a notch that is fitted to the support.
8. A flow meter, comprising:
a flat substrate;
a housing that houses the substrate and has an opening in at least one surface;
a cover that covers the substrate and covers the opening in the surface of the housing;
a support that supports the substrate and is in contact with the cover and the substrate; and
a fixing unit that connects the substrate and the housing; wherein
in a first region and a second region formed by dividing the substrate into two parts at a center in a longitudinal direction, the support is disposed in the first region, and the fixing unit is disposed in the second region; and
wherein
the substrate includes a protrusion corresponding hole which is a hole in the first region, and
the housing includes a protrusion unit that protrudes toward a substrate side and penetrates the protrusion corresponding hole.
9. The flow meter according to claim 8 , wherein
a Young's modulus of the support is 10 MPa or more and 1000 MPa or less.
10. The flow meter according to claim 8 , wherein
an area in which the support is in contact with the cover is smaller than an area in which the support is in contact with the substrate.
11. The flow meter according to claim 8 , wherein
the fixing unit also serves for electrical connection.
12. The flow meter according to claim 8 , wherein
the support is at least present on a front side of the substrate, and
the fixing unit is present on a back side of the substrate.
13. The flow meter according to claim 8 , wherein
the support includes a support fitting unit which is a concave unit or a convex unit on a surface in contact with the cover, and
the cover includes a cover fitting unit that is fitted to the support fitting unit.
14. The flow meter according to claim 8 , wherein
the longitudinal direction of the support is disposed in a transverse direction of the substrate,
a dimension of the support in the longitudinal direction is longer than a dimension of the substrate in the transverse direction, and
the housing includes a notch that is fitted to the support.
15. A flow meter, comprising:
a flat substrate;
a housing that houses the substrate and has an opening in at least one surface;
a cover that covers the substrate and covers the opening in the surface of the housing;
a support that supports the substrate and is in contact with the cover and the substrate; and
a fixing unit that connects the substrate and the housing; wherein
in a first region and a second region formed by dividing the substrate into two parts at a center in a longitudinal direction, the support is disposed in the first region, and the fixing unit is disposed in the second region; and
wherein
the substrate includes a filling hole which is a hole in a region in contact with the support, and
the filling hole is filled with a filled support integrally formed with the support.
16. The flow meter according to claim 15 , wherein
an area in which the support is in contact with the cover is smaller than an area in which the support is in contact with the substrate.
17. The flow meter according to claim 15 , wherein
the fixing unit also serves for electrical connection.
18. The flow meter according to claim 15 , wherein
the support is at least present on a front side of the substrate, and
the fixing unit is present on a back side of the substrate.
19. The flow meter according to claim 15 , wherein
the support includes a support fitting unit which is a concave unit or a convex unit on a surface in contact with the cover, and
the cover includes a cover fitting unit that is fitted to the support fitting unit.
20. The flow meter according to claim 15 , wherein
the longitudinal direction of the support is disposed in a transverse direction of the substrate,
a dimension of the support in the longitudinal direction is longer than a dimension of the substrate in the transverse direction, and
the housing includes a notch that is fitted to the support.