Terminal block with cover and power conditioner

Abstract

To provide a terminal block with a cover and a power conditioner that can protect circuit components without additional work to attach a cover covering the circuit components to a substrate.SOLUTION: A terminal block with a cover 6 provided on a substrate 2 where Y capacitor 5 that is a circuit component, is located comprises: a base 61 fixed to the substrate 2 with a bottom 61A positioned adjacent to the Y capacitor 5 and a front 61C facing the Y capacitor 5; and a front cover 66 which is a cover removable from the front 61C of the base 61. The front cover 66 covers the Y capacitor 5 by protruding forward from the front 61C of the base 61 in its mounted state on the base 61. The power conditioner 1 has the substrate 2 on which a power conversion circuit and the Y capacitor 5 are located, and the terminal block with the cover 6 having the above configuration.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a terminal block provided on a substrate on which circuit components are arranged, and a power conditioner including the terminal block.

Background Art

[0002] Generally, a power conditioner connected to a power system, a power storage device, etc. includes a substrate on which a power conversion circuit and circuit components are arranged, and a terminal block provided on the substrate. The terminal block is provided at the edge of the substrate (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a power conditioner, it is required to take measures against unnecessary radiation. As a measure against unnecessary radiation, for example, it is conceivable to provide a Y capacitor, which is a circuit component for noise reduction, near the terminal block.

[0005] However, in a configuration where circuit components are arranged near the terminal block, when performing an operation of connecting a crimp terminal to the terminal block, if there is accidental contact with the circuit components, there is a risk of damage or electric shock to the circuit components. In order to solve this problem, for example, it is conceivable to attach a cover that covers the circuit components to the substrate, but there arises a problem that additional work is required to attach the cover to the substrate.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide a terminal block with a cover and a power conditioner that can protect circuit components without adding an operation of attaching a cover covering the circuit components to a substrate.

Means for Solving the Problems

[0007] In order to solve the above problems, a terminal block with a cover according to the present invention is a terminal block provided on a substrate on which circuit components are arranged, and in a state where the lower surface is arranged adjacent to the circuit components, the front surface faces the circuit components. A base fixed to the substrate, and a cover detachably configured with respect to the front surface of the base, and the cover covers the circuit components by protruding forward from the front surface of the base in a mounted state on the base. It is characterized by that.

[0008] In the above configuration, since the circuit components are covered by the cover, for example, when performing an operation of connecting a crimp terminal to the terminal block, it is possible to prevent accidental contact with the circuit components. Further, since the cover is attached to the base, there is no need to attach the cover to the substrate. Therefore, the circuit components can be protected without adding an operation of attaching a cover covering the circuit components to the substrate.

[0009] Further, in the terminal block with a cover, the cover has a base portion extending in the vertical direction and a first cover portion extending forward from the base portion, and the first cover portion is preferably configured to cover above the circuit components in the mounted state.

[0010] Further, in the terminal block with a cover, the cover has a second cover portion extending downward from the left end of the first cover portion, a third cover portion extending downward from the right end of the first cover portion, and a fourth cover portion extending downward from the front end of the first cover portion, and the second cover portion, the third cover portion, and the fourth cover portion preferably cover the left side, the right side, and the front side of the circuit components in the mounted state.

[0011] In the terminal block with a cover, the lower end of the fourth cover portion is configured to be located above the lower ends of the second cover portion and the third cover portion, and it is preferable that the fourth cover portion exposes a part of the circuit component when the circuit component is viewed from the front of the base portion in the mounted state.

[0012] In the terminal block with a cover, the cover has a first attachment portion extending rearward from the lower end of the base portion and a second attachment portion extending rearward from the upper end of the base portion, and it is preferable that the first attachment portion and the second attachment portion are inserted into the base to be mounted on the base.

[0013] In the terminal block with a cover, a circuit component inside the base can be housed inside the base, and the circuit component inside the base housed inside the base has its front side exposed to the outside of the base in the attached / detached state where the cover is not mounted on the base, and it is preferable that the first cover portion covers the front of the circuit component inside the base in the mounted state.

[0014] In order to solve the above problems, a power conditioner according to the present invention is a power conditioner including a substrate on which a power conversion circuit and circuit components are arranged, and a terminal block provided on the substrate, wherein the terminal block includes a base fixed to the substrate in a state of being arranged adjacent to the circuit component, and a cover configured to be detachable from the base, and the cover covers the circuit component by protruding in a direction parallel to the surface of the substrate from the base in a state of being mounted on the base.

Effects of the Invention

[0015] According to the present invention, it is possible to provide a terminal block with a cover and a power conditioner that can protect circuit components without adding an operation of mounting a cover for covering the circuit components on the substrate.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0017] An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the power conditioner 1 is connected to the power system P and the power-consuming equipment L via the distribution board D, and is also connected to the solar power generation device G and the power storage device S, which are stationary external devices. The power conditioner 1 is a power transfer device that transfers power by performing power conversion, and performs power conversion for outputting the power from the power system P to the power storage device S, power conversion for outputting the power from the solar power generation device G to the distribution board D and the power storage device S, and power conversion for outputting the power from the power storage device S to the power-consuming equipment L.

[0018] The power conditioner 1 includes a substrate 2 and a housing 3 that houses the substrate 2. The substrate 2 is provided with a power conversion circuit 4, which is an electric circuit for power conversion, a Y capacitor 5, which is a circuit component, and a terminal block 6 with a cover.

[0019] The power conversion circuit 4 is a circuit that performs AC-DC conversion for converting AC power into DC power, DC-AC conversion for converting DC power into AC power, and DC-DC conversion for converting the voltage of DC power.

[0020] The Y capacitor 5 is a circuit component for noise reduction provided as a countermeasure against unnecessary radiation. The Y capacitor 5 is a capacitor connected to the frame ground (FG), and bypasses common-mode noise to the ground. In the present embodiment, the power conditioner 1 includes the same number of Y capacitors 5 as the number of poles of the terminal block 6 with a cover.

[0021] The terminal block 6 with a cover (hereinafter referred to as "terminal block 6") connects the power conversion circuit 4 provided on the substrate 2 and the electric wires 7A to 7C. In the present embodiment, the power conditioner 1 includes, as the terminal block 6, a terminal block 6A connected to the power system P and the power-consuming equipment L via the distribution board D, a terminal block 6B connected to the photovoltaic power generation device G, and a terminal block 6C connected to the energy storage device S.

[0022] The electric wire 7A connected to the distribution board D is connected to the terminal block 6A. The number of poles of the terminal block 6A is three, and two power lines and one neutral line constituting the electric wire 7A are connected to the terminal block 6A.

[0023] The electric wire 7B connected to the photovoltaic power generation device G is connected to the terminal block 6B. The number of poles of the terminal block 6B is an even number, and a pair of plus and minus lines constituting the electric wire 7B are connected to the terminal block 6B. In the present embodiment, the number of poles of the terminal block 6B is four, and two pairs of plus and minus lines are configured to be connectable, but the number of poles may be such that three or more pairs of plus and minus lines are connectable.

[0024] A wire 7C connected to the power storage device S is connected to the terminal block 6C. The number of poles of the terminal block 6C is an even number, and a pair of positive and negative wires constituting the wire 7C are connected to the terminal block 6C. In the present embodiment, the number of poles of the terminal block 6C is two, and a pair of positive and negative wires are configured to be connectable, but the number of poles may be such that two or more pairs of positive and negative wires can be connected.

[0025] The wires 7A to 7C are provided with crimp terminals (not shown) connected to the terminal block 6. That is, the crimp terminals are provided at the ends of the above-described power line, neutral line, positive wire, and negative wire. Note that the illustration of the wires 7A to 7C is omitted from FIG. 2 onward.

[0026] Next, the substrate 2 will be described with reference to FIGS. 2 and 3. FIG. 2 is a diagram showing only the substrate 2, and FIG. 3 is a diagram showing the substrate 2 in a state where the terminal block 6B and the Y capacitor 5 are arranged. The two-dot chain line in FIG. 2 indicates the location where the terminal block 6B is arranged. The front-rear direction X, left-right direction Y, and up-down direction Z indicated by the arrows in the figure are straight line directions orthogonal to each other. The front-rear direction X and the left-right direction Y are parallel to the surface of the substrate 2, and the up-down direction Z is perpendicular to the surface of the substrate 2.

[0027] As shown in FIG. 3(B), the substrate 2 has a first surface 2A and a second surface 2B that form the front and back. Further, as shown in FIG. 2(A), the substrate 2 includes a conductor pattern 21 provided on the first surface 2A, and as shown in FIG. 2(B), includes conductor patterns 22 and 23 provided on the second surface 2B. FIGS. 2(A) and (B) are both plan views of the first surface 2A, and the conductor patterns 22 and 23 provided on the second surface 2B are shown by broken lines in FIG. 2(B). Note that the illustration of the conductor patterns 21 to 23 is omitted from FIG. 3 onward.

[0028] Furthermore, as shown in FIG. 2, the substrate 2 includes through-holes 24 for conducting wires, through-holes 25 for terminal blocks, and through-holes 26 and 27 for Y capacitors. Note that the illustration of the through-holes 24 to 27 is omitted in FIGS. 3 and later.

[0029] The conductor pattern 21 electrically connects the through-hole 24 for conducting wires, the through-hole 25 for terminal blocks, and the through-hole 26 for Y capacitors. The conductor pattern 22 electrically connects the through-hole 24 for conducting wires and the through-hole 25 for terminal blocks. In the present embodiment, the conductor patterns 21 and 22 are each composed of four printed wirings.

[0030] The conductor pattern 23 is electrically connected to the through-hole 27 for Y capacitors and is formed so as to avoid the through-hole 26 for Y capacitors. In the present embodiment, the conductor pattern 23 is composed of printed wirings connected to four through-holes 27 for Y capacitors. The conductor pattern 23 functions as a ground pattern that constitutes a frame ground by being electrically connected to the housing 3. The conductor pattern 23 preferably has a large area and low impedance. Since no circuit components other than the Y capacitor 5 are provided at the edge of the substrate 2 located in front of the terminal block 6B, the area of the conductor pattern 23 can be increased with a simple shape.

[0031] The through-hole 24 for conducting wires is a through-hole for connecting the electric circuit mounted on the substrate 2 and the conductor patterns 21 and 22. A connection terminal (not shown) drawn from the power conversion circuit 4 is inserted into and connected to the through-hole 24 for conducting wires.

[0032] The through-hole 25 for terminal blocks is a through-hole for connecting the terminal block 6B and the conductor patterns 21 and 22. The first terminal 62 (see FIG. 3(B)) of the terminal block 6B is inserted into and connected to the through-hole 25 for terminal blocks.

[0033] The through-hole 26 for the Y-connector is a through-hole for connecting the Y-capacitor 5 and the conductor pattern 21. The first lead wire 5A (see Fig. 3(B)) of the Y-capacitor 5 is inserted and connected to the through-hole 26 for the Y-connector.

[0034] The through-hole 27 for the Y-connector is a through-hole for connecting the Y-capacitor 5 and the conductor pattern 23. The second lead wire 5B (see Fig. 3(B)) of the Y-capacitor 5 is inserted and connected to the through-hole 27 for the Y-connector.

[0035] Next, referring to Figs. 3 and 4, the configuration of the terminal block 6B among the plurality of terminal blocks 6 will be described in detail. Note that since the terminal blocks 6A and 6C have the same configuration as the terminal block 6B except for the number of poles, the detailed description of the terminal blocks 6A and 6C will be omitted.

[0036] Fig. 4(A) is a view of the terminal block 6B shown in Fig. 3 as seen from the left, and Fig. 4(B) is a cross-sectional view taken along the line A-A in Fig. 3. As shown in Figs. 3 and 4, the terminal block 6B includes a base 61, a first terminal 62, a second terminal 63, a male screw 64, an upper cover 65, a front cover 66, and a thermal fuse 67. Note that the 4-pole terminal block 6B of the present embodiment has four terminals 62 and 63 respectively.

[0037] The base 61 is a resin molded body formed of a resin having electrical insulation, and is fixed at a position adjacent to the Y-capacitor 5 of the substrate 2. Hereinafter, the state where the base 61 is fixed to the substrate 2 is referred to as the "fixed state". The base 61 has a lower surface 61A disposed at a position adjacent to the Y-capacitor 5 in the fixed state, an upper surface 61B into which a tool (not shown) for rotating the male screw 64 is inserted from above, and a front surface 61C configured to face the Y-capacitor 5 (i.e., the front). In the present embodiment, the base 61 of the terminal block 6B is disposed behind the four Y-capacitors 5, and the Y-capacitor 5 and the base 61 are adjacent to each other in the front-rear direction X while being arranged in parallel along the left-right direction Y.

[0038] The first terminal 62 is a terminal for connecting to a substrate, and the second terminal 63 is a terminal for connecting to a crimp terminal. In this embodiment, the terminals 62 and 63 are integrally formed by a bent metal terminal member. The first terminal 62 protrudes downward from the base 61. By soldering the first terminal 62 to the through-hole 25 for the terminal block, the base 61 is fixed to the substrate 2. The second terminal 63 is provided inside the base 61. By fastening the second terminal 63 and the crimp terminal of the electric wire 7B, the electric wire 7B is connected to the terminal block 6B.

[0039] The male screw 64 is fitted to the second terminal 63. By screwing it into the second terminal 63 with the crimp terminal disposed on the second terminal 63, the second terminal 63 and the crimp terminal of the electric wire 7B are fastened.

[0040] The upper cover 65 is a resin molded body formed of a resin having electrical insulation and is configured to be detachable from the upper surface 61B of the base 61. The upper cover 65 is mounted on the base 61 after the second terminal 63 and the crimp terminal are fastened by the male screw 64. When the upper cover 65 is mounted on the base 61, it covers the upper part of the second terminal 63 and the male screw 64 inside the base 61.

[0041] The front cover 66 is a resin molded body formed of a resin having electrical insulation and is configured to be detachable from the front surface 61C of the base 61. The front cover 66 is mounted on the base 61 after the temperature fuse 67 is provided inside the base 61 and after the Y capacitor 5 is mounted on the substrate 2. When the front cover 66 is mounted on the base 61, it covers the front of the temperature fuse 67. Further, when the front cover 66 is mounted on the base 61, it protrudes forward in a direction parallel to the substrate 2 from the front surface 61C of the base 61 to cover the upper, left, right, and front sides of the Y capacitor 5.

[0042] The thermal fuse 67 is a component of the internal circuit within the base 61 and functions as a temperature detection unit that detects a temperature increase due to the loosening of the male screw 64. The conduction state of the thermal fuse 67 is monitored by an external microcomputer through a temperature detection line, and it becomes an open (non-conductive) state when the temperature reaches a predetermined level or higher. When the microcomputer detects a temperature increase (open state), processes such as stopping the operation are executed. The thermal fuse 67 has its front side exposed outside the base 61 in the detached state where the front cover 66 is not attached to the base 61. The electric wire 67A (see FIG. 3) connected to the thermal fuse 67 is connected to a connector (not shown) provided on the substrate 2 through the gap between the base 61 and the front cover 66.

[0043] Referring to FIG. 5, the front cover 66 shown in FIGS. 3 and 4 will be described. FIG. 5(A) is a view of the front cover 66 seen from the front, FIG. 5(B) is a cross-sectional view taken along line B-B in FIG. 5(A), and FIG. 5(C) is a cross-sectional view taken along line C-C in FIG. 5(B).

[0044] As shown in FIG. 5, the front cover 66 has a base portion 66A, a first attachment portion 66B, a second attachment portion 66C, a first cover portion 66D, a second cover portion 66E, a third cover portion 66F, and a fourth cover portion 66G. The front cover 66 is formed with the longitudinal direction along the left-right direction Y in order to protect a plurality of Y capacitors 5 arranged in the left-right direction Y.

[0045] The base portion 66A constitutes a rear wall extending in the up-down direction Z. The base portion 66A extends along the left-right direction Y along the front end of the base 61. The base portion 66A covers the front of the thermal fuse 67 provided inside the base 61 when the front cover 66 is attached to the base 61.

[0046] The first attachment part 66B constitutes a protrusion extending rearward from the lower end of the base part 66A, and the second attachment part 66C constitutes a protrusion extending rearward from the upper end of the base part 66A. The attachment parts 66B and 66C extend from the left end to the right end of the base part 66A and are configured to be press-fittable into the base 61. By inserting the attachment parts 66B and 66C into the base 61, the front cover 66 is attached to the base 61, and by pulling out the attachment parts 66B and 66C from the base 61, the front cover 66 is detached from the base 61.

[0047] The first cover part 66D constitutes an upper wall extending forward from the upper end of the base part 66A and covers the upper part of the Y capacitor 5 when the front cover 66 is attached to the base 61. The first cover part 66D is configured to be located below the upper ends of the second terminal 63 and the male screw 64 so as not to interfere with the fastening operation between the second terminal 63 and the crimp terminal when the front cover 66 is attached to the base 61.

[0048] The second cover part 66E constitutes a left side wall extending downward from the left end of the first cover part 66D and covers the left part of the Y capacitor 5 when the front cover 66 is attached to the base 61. The second cover part 66E is continuous with the left ends of the base part 66A, the first cover part 66D, and the fourth cover part 66G, respectively.

[0049] The third cover part 66F constitutes a right side wall extending downward from the right end of the first cover part 66D and covers the right part of the Y capacitor 5 when the front cover 66 is attached to the base 61. The third cover part 66F is continuous with the right ends of the base part 66A, the first cover part 66D, and the fourth cover part 66G, respectively.

[0050] The fourth cover part 66G constitutes a front wall extending downward from the front end of the first cover part 66D, and covers the front of the Y capacitor 5 when the front cover 66 is attached to the base 61. The lower end of the fourth cover part 66G is configured to be positioned above the lower ends of the base part 66A, the second cover part 66E, and the third cover part 66F respectively, and the fourth cover part 66G exposes a part of the Y capacitor 5 when the Y capacitor 5 is viewed from the front of the base part 66A (in other words, when viewed from the front of the front cover 66).

[0051] The terminal block 6 (that is, terminal blocks 6A to 6C) configured as described above is fixed to the substrate 2 on which the Y capacitor 5 is mounted with the front cover 66 attached to the base 61. Alternatively, with the Y capacitor 5 and the base 61 mounted on the substrate 2, the front cover 66 is attached to the base 61. Then, with the Y capacitor 5 covered by the front cover 66, the operation of connecting the terminal block 6 and the crimp terminals of the electric wires 7A to 7C is performed.

[0052] The following effects are obtained in this embodiment. (1) The front cover 66 (cover) is configured to be detachable from the front surface 61C of the base 61, and covers the Y capacitor 5 by protruding forward from the front surface 61C of the base 61 in the attached state of being attached to the base 61. According to this configuration, since the Y capacitor 5 is covered by the front cover 66, it is possible to prevent accidental contact with the Y capacitor 5 when connecting the crimp terminals of the electric wires 7A to 7C to the terminal block 6. Further, since the front cover 66 is attached to the base 61, it is not necessary to attach a cover for covering the Y capacitor 5 to the substrate 2. Therefore, the Y capacitor 5 can be protected without adding the operation of attaching a cover for covering the Y capacitor 5 to the substrate 2.

[0053] (2) The first cover part 66D covers the upper part of the Y capacitor 5 in the attached state of the front cover 66 being attached to the base 61. According to this configuration, when connecting the crimp terminals of the electric wires 7A to 7C to the terminal block 6, for example, a tool for turning the male screw 64 or the crimp terminal can be prevented from contacting the Y capacitor 5 from above.

[0054] (3) The second cover portion 66E, the third cover portion 66F, and the fourth cover portion 66G cover the left side, the right side, and the front of the Y capacitor 5 in a state where the front cover 66 is attached to the base 61. According to this configuration, when performing the operation of connecting the crimp terminals of the electric wires 7A to 7C to the terminal block 6, for example, it is possible to suppress the crimp terminals from contacting the Y capacitor 5 from the left side, the right side, and the front.

[0055] (4) The lower end of the fourth cover portion 66G is configured to be positioned above the lower ends of the second cover portion 66E and the third cover portion 66F, and the fourth cover portion 66G exposes a part of the Y capacitor 5 when the Y capacitor 5 is viewed from the front of the base portion 66A in a state where the front cover 66 is attached to the base 61. According to this configuration, the front cover 66 has an opening below the fourth cover portion 66G, and the connection state of the Y capacitor 5 covered by the front cover 66 and the substrate 2 of the Y capacitor 5 can be visually recognized from the front.

[0056] (5) The front cover 66 is attached to the base 61 by inserting the first attachment portion 66B and the second attachment portion 66C into the base 61. According to this configuration, the front cover 66 can be attached to the base 61 without using tools.

[0057] (6) The base portion 66A covers the front of the thermal fuse 67 (a circuit component inside the base) in a state where the front cover 66 is attached to the base 61. According to this configuration, it is possible to suppress contact with the thermal fuse 67 from the front, and since the front cover 66 protects the thermal fuse 67, the number of components can be reduced compared to a configuration in which the cover covering the thermal fuse 67 and the cover protecting the Y capacitor 5 are separate, and cost reduction is possible.

[0058] The present invention is not limited to the above-described embodiment, and the above configuration can also be changed. For example, it can be implemented by changing as follows, and it can also be implemented by combining the following changes.

[0059] The circuit components protected by the front cover 66 may be circuit components other than the Y capacitor 5. For example, the front cover 66 may be configured to cover an arrester or a varistor, which is a circuit component for protecting an electric circuit from lightning surges, instead of the Y capacitor 5. Also, the circuit components provided inside the base 61 may be circuit components other than the thermal fuse 67.

[0060] A plurality of mounting portions 66B and 66C may be provided at intervals in the left - right direction Y. Also, the mounting portions 66B and 66C may be protrusions extending rearward from the central portion of the base portion 66A in the vertical direction Z, not limited to the lower end and the upper end of the base portion 66A. Claws for hooking on the base 61 may be provided on the mounting portions 66B and 66C to prevent them from falling off the base 61.

[0061] External devices other than the solar power generation device G and the power storage device S may be connected to the power conditioner 1. For example, a vehicle charging / discharging device for an electric vehicle equipped with a rechargeable secondary battery may be further connected to the power conditioner 1. Also, the power conditioner 1 may function as a vehicle charging / discharging device. In this case, the power conditioner 1 performs, for example, power conversion for outputting power from the power system P and / or the solar power generation device G to the secondary battery of the electric vehicle, and power conversion for outputting power from the secondary battery of the electric vehicle to the power consuming device L.

Explanation of Reference Numerals

[0062] 1 Power conditioner 2 Substrate 4 Power conversion circuit 5 Y capacitor (circuit component) 6, 6A - 6C Covered terminal block 7A - 7C Electric wire 61 Base 61A Bottom surface 61B Top surface 61C Front surface 62 First terminal 63 Second terminal 64 Male screw 65 Upper cover 66 Front cover (cover) 66A Base 66B First attachment part 66C Second attachment part 66D First cover part 66E Second cover part 66F Third cover part 66G Fourth cover part 67 Thermal fuse (circuit component in base) X Front - rear direction Y Left - right direction Z Up - down direction

Claims

1. A terminal block provided on a substrate on which circuit components are arranged, a base fixed to the substrate such that the lower surface is disposed adjacent to the circuit component and the front surface faces the circuit component, and a cover detachably configured with respect to the front surface of the base and comprising the cover covering the circuit component by protruding forward from the front surface of the base in a mounted state where the cover is mounted on the base A terminal block with a cover, characterized in that.

2. The cover is a base portion extending in the vertical direction, and a first cover portion extending forward from the base portion, the first cover portion covering above the circuit component in the mounted state A terminal block with a cover according to claim 1, characterized in that.

3. The cover is a second cover portion extending downward from the left end of the first cover portion, a third cover portion extending downward from the right end of the first cover portion, and a fourth cover portion extending downward from the front end of the first cover portion, the second cover portion, the third cover portion, and the fourth cover portion covering the left side, the right side, and the front side of the circuit component in the mounted state A terminal block with a cover according to claim 2, characterized in that.

4. The lower end of the fourth cover portion is configured to be positioned above the lower ends of the second cover portion and the third cover portion, the fourth cover portion exposing a part of the circuit component when the circuit component is viewed from the front surface of the base in the mounted state A terminal block with a cover according to claim 3, characterized in that.

5. The cover is a first attachment portion extending rearward from the lower end of the base portion, and a second attachment portion extending rearward from the upper end of the base portion, the cover being mounted on the base by inserting the first attachment portion and the second attachment portion into the base A terminal block with a cover according to claim 2, characterized in that.

6. A base internal circuit component can be housed inside the base, the base internal circuit component housed inside the base having the front side exposed to the outside of the base in a detached state where the cover is not mounted on the base, the base portion having the first cover portion covering in front of the base internal circuit component in the mounted state A terminal block with a cover according to claim 2, characterized in that.

7. A power conditioner comprising a substrate on which a power conversion circuit and circuit components are arranged, and a terminal block provided on the substrate, wherein the terminal block is The terminal block is A base fixed to the substrate in a state of being disposed at a position adjacent to the circuit component, A cover configured to be detachable from the base, Comprising, The cover, in a state of being mounted on the base, covers the circuit component by protruding in a direction parallel to the surface of the substrate from the base. A power conditioner characterized by the above.

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