Liquid discharge head and recording apparatus

1 . A liquid discharge head comprising:

a liquid discharge unit configured to discharge liquid;

a housing configured to cover the liquid discharge unit;

an electrical connection portion configured to be electrically connected to an electrical wiring substrate of a recording apparatus;

a connection portion cover member configured to cover the electrical connection portion;

a support member configured to support the liquid discharge unit and connect to the housing; and

a seal member configured to seal a gap between the housing and the support member,

wherein power is supplied from the recording apparatus to the liquid discharge unit via the electrical connection portion,

wherein the housing includes a recessed portion into which the connection portion cover member can be inserted,

wherein the connection portion cover member includes an insertion portion insertable into the recessed portion, and

wherein the insertion portion is covered by the recessed portion.

2 . The liquid discharge head according to claim 1 , wherein at least a part of the connection portion cover member contacts the electrical wiring substrate.

3 . The liquid discharge head according to claim 2 , wherein the connection portion cover member includes a first elastic member and contacts the electrical wiring substrate via the first elastic member.

4 . The liquid discharge head according to claim 3 , wherein the connection portion cover member includes a rib portion on a back side of a surface on which the first elastic member is disposed.

5 . The liquid discharge head according to claim 2 , wherein the connection portion cover member contacts the electrical wiring substrate at a position opposing a position at which the insertion portion is disposed.

6 . The liquid discharge head according to claim 1 ,

wherein the housing has an opening portion configured to accommodate the electrical connection portion,

wherein the connection portion cover member covers the opening portion, and

wherein at least one side of the connection portion cover member contacts the opening portion in a state where the insertion portion is inserted in the recessed portion.

7 . The liquid discharge head according to claim 6 , wherein at least three sides of the connection portion cover member contact the opening portion.

8 . The liquid discharge head according to claim 6 , wherein a width at which the connection portion cover member contacts the opening portion is 1 mm or more.

9 . The liquid discharge head according to claim 6 , wherein the connection portion cover member and the opening portion contact via a second elastic member.

10 . The liquid discharge head according to claim 9 , wherein at least three sides of the connection portion cover member contact the opening portion via the second elastic member.

11 . The liquid discharge head according to claim 9 , wherein the second elastic member is included in the connection portion cover member.

12 . The liquid discharge head according to claim 9 , wherein the second elastic member is included in the opening portion.

13 . The liquid discharge head according to claim 1 ,

wherein the housing includes a first protruding portion, and

wherein the connection portion cover member includes a first fitting portion into which the first protruding portion fits.

14 . The liquid discharge head according to claim 1 ,

wherein the connection portion cover member includes a second protruding portion, and

wherein the housing includes a second fitting portion into which the second protruding portion fits.

15 . The liquid discharge head according to claim 14 ,

wherein the connection portion cover member includes a lever member extending in a direction to cover the housing, and

wherein the lever member includes the second protruding portion.

16 . The liquid discharge head according to claim 1 ,

wherein the liquid discharge unit includes a recording element substrate including a pressure generation element configured to generate pressure for discharging the liquid, and a flexible wiring substrate electrically connected to the recording element substrate,

wherein an electrical relay substrate electrically connected to the flexible wiring substrate and configured to relay power to the flexible wiring substrate is disposed in the housing, and

wherein the electrical relay substrate includes, at an end portion of the electrical relay substrate, the electrical connection portion.

17 . The liquid discharge head according to claim 16 , wherein the pressure generation element is a piezoelectric element to be driven by application of voltage.

18 . The liquid discharge head according to claim 1 , wherein the housing includes a liquid connection portion to be connected to the recording apparatus in terms of liquid.

19 . The liquid discharge head according to claim 18 , wherein the liquid discharge head includes at least two electrical connection portions and at least two connection portion cover members, and

wherein the at least two connection portion cover members cover the electrical connection portions in such a manner as to sandwich the liquid connection portion.

20 . The liquid discharge head according to claim 1 , wherein the seal member is bonded to the housing.

21 . The liquid discharge head according to claim 1 , wherein the seal member is joined to the housing.

22 . The liquid discharge head according to claim 1 , wherein the electrical wiring substrate is a flexible wiring substrate.

23 . A recording apparatus comprising:

a liquid discharge unit configured to discharge liquid;

a housing configured to cover the liquid discharge unit;

an electrical wiring substrate;

an electrical connection portion configured to be electrically connected to the electrical wiring substrate;

a connection portion cover member configured to cover the electrical connection portion;

a support member configured to support the liquid discharge unit and connect to the housing; and

a seal member configured to seal a gap between the housing and the support member,

wherein power is supplied from the recording apparatus to the liquid discharge unit via the electrical connection portion,

wherein the housing includes a recessed portion into which the connection portion cover member can be inserted,

wherein the connection portion cover member includes an insertion portion insertable into the recessed portion, and

wherein the insertion portion is covered by the recessed portion.

24 . A liquid discharge head comprising:

a liquid discharge unit configured to discharge liquid;

a housing configured to cover the liquid discharge unit;

at least two electrical connection portions configured to be electrically connected to at least one electrical wiring substrate of a recording apparatus; and

at least two connection portion cover members configured to cover the electrical connection portions,

wherein power is supplied from the recording apparatus to the liquid discharge unit via the electrical connection portion,

wherein the housing includes a recessed portion into which the connection portion cover member can be inserted,

wherein the housing includes a liquid connection portion to be connected to the recording apparatus in terms of liquid,

wherein the connection portion cover member includes an insertion portion insertable into the recessed portion,

wherein the insertion portion is covered by the recessed portion, and

wherein the at least two connection portion cover members cover the electrical connection portions in such a manner as to sandwich the liquid connection portion.