Electronic component unit and wire harness

1. An electronic component unit comprising:

a plurality of blocks each including at least one main body portion to each of which an electronic component is attached, and a block-side joint that joins any two of the blocks to each other, the blocks being joined together via the block-side joint with the main body portions arranged side by side in a first direction with gaps between adjacent ones of the main body portions; and

a supporting wall body including a plurality of wall-body side joints that support and fix in a second direction intersecting the first direction, in a cantilever fashion, the blocks joined together via the block-side joint, wherein

the block-side joint includes a first joint and a second joint, the first joint being capable of engaging with and stopping against the second joint and being formed in a different shape against the second joint,

the first joint is formed in a recessed shape at the main body, and

the second joint is formed in a raised shape at the main body.

2. The electronic component unit according to claim 1 , wherein

the second direction is orthogonal to a height direction of the supporting wall body, and is a direction from the supporting wall body to at least one of the blocks, and

the wall-body side joints join the blocks to the supporting wall body with a distance between each of the main body portions and the supporting wall body in the second direction being smaller than a distance in the first direction between the main body portions that are joined together via the block-side joints.

3. The electronic component unit according to claim 2 , wherein

the block-side joint, while the blocks are in a state fixed to the supporting wall body via the wall-body side joints, is positioned offset towards one side from a center position of the corresponding main body portion in the second direction, the one side facing away from the supporting wall body.

4. The electronic component unit according to claim 3 , wherein

the blocks include two or more of the first joints and two or more of the second joints, each of the wall-body side joints is capable of engaging with and stopping any one of the first joints,

each of the first joints includes an engagement projection that engages with and stops against any one of the second joints or any one of the wall-body side joints, and

each of the main body portions includes a notch that penetrates through each of the main body portions in a third direction from the corresponding engagement projection towards the electronic component, the third direction intersecting the first direction and the second direction.

5. The electronic component unit according to claim 2 , wherein

the blocks include two or more of the first joints and two or more of the second joints,

each of the wall-body side joints is capable of engaging with and stopping any one of the first joints,

each of the first joints includes an engagement projection that engages with and stops against any one of the second joints or any one of the wall-body side joints, and

each of the main body portions includes a notch that penetrates through each of the main body portions in a third direction from the corresponding engagement projection towards the electronic component, the third direction intersecting the first direction and the second direction.

6. The electronic component unit according to claim 1 , wherein

the second direction is a direction from the supporting wall body to at least one of the blocks, and

each of the block-side joints, while the blocks are in a state fixed to the supporting wall body via the wall-body side joints, is positioned offset towards one side from a center position of the corresponding main body portion in the second direction, the one side facing away from the supporting wall body.

7. The electronic component unit according to claim 6 , wherein

the blocks include two or more of the first joints and two or more of the second joints,

each of the wall-body side joints is capable of engaging with and stopping any one of the first joints,

each of the first joints includes an engagement projection that engages with and stops against any one of the second joints or any one of the wall-body side joints, and

each of the main body portions includes a notch that penetrates through each of the main body portions in a third direction from the corresponding engagement projection towards the electronic component, the third direction intersecting the first direction and the second direction.

8. The electronic component unit according to claim 1 , wherein

the second direction is orthogonal to a height direction of the supporting wall body and is a direction from the supporting wall body to at least one of the blocks,

the blocks include two or more of first joints, including the first joint, and two or more of second joints, including the second joint, each of the wall-body side joints is capable of engaging with and stopping any one of the first joints,

each of the first joints includes an engagement projection that engages with and stops against any one of the second joints or any one of the wall-body side joints, and

each of the main body portions includes a notch that penetrates through each of the main body portions in a third direction from the corresponding engagement projection towards the electronic component, the third direction intersecting the first direction and the second direction.

9. The electronic component unit according to claim 8 , wherein

the main body has a substantially cubic shape,

the first joints are provided at one of both end surfaces of the main body in the first direction and on one of both end surfaces of the main body in the second direction, respectively, and

the second joints are provided at the other of the both end surfaces of the main body in the first direction and on the other of the both end surfaces of the main body in the second direction, respectively.

10. A wire harness comprising:

an electrically conductive wiring member; and

an electronic component unit electrically connected to the wiring member, wherein the electronic component unit includes:

a plurality of blocks each including at least one main body portion to each of which an electronic component electrically connected to the wiring member is attached, and a block-side joint that join any two of the blocks to each other, the blocks being joined together via the block-side joint with the main body portions arranged side by side in a first direction with gaps between adjacent ones of the main body portions, and

a supporting wall body including a plurality of wall-body side joints that support and fix in a second direction intersecting the first direction, in a cantilever fashion, the blocks joined together via the block-side joint, wherein

the block-side joint includes a first joint and a second joint, the first joint being capable of engaging with and stopping against the second joint and being formed in a different shape against the second joint,

the first joint is formed in a recessed shape at the main body, and

the second joint is formed in a raised shape at the main body.