Through-wall type terminal block with temperature sensor for solar power generation

Abstract

The through-wall type terminal block with the temperature sensor for solar power generation comprises an insulating base, a plurality of first wiring screws, a conductive plate and a protective cover, the insulating base comprises a bottom plate, and a first compartment and a second compartment correspondingly communicated with the first compartment are arranged on the top surface and the bottom surface of the bottom plate in parallel at intervals; a mounting platform with a blind hole is arranged on the top surface of a bottom plate in the first compartment; a connecting hole is formed in the supporting plate in the second compartment; the head of the first wiring screw is embedded in the blind hole of the first compartment mounting platform; the conductive plate is L-shaped and comprises an upper connecting part and a lower connecting part which is bent downwards, and two sides of the upper connecting part and the lower connecting part are respectively provided with a first connecting through hole, a second connecting through hole and a third connecting through hole; the upper connecting part is inserted into the lower part of the first wiring screw; the lower connecting part is inserted into the second compartment from the slotted hole in the bottom plate and is fixed on the supporting plate; the at least three temperature sensors are arranged in one-to-one correspondence with the current-conducting plates, and the starting connecting ends are connected to third connecting through holes in the other sides of the lower connecting parts of the current-conducting plates; and the protective cover covers the upper end of the insulating base.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to a through-the-wall terminal block with a temperature sensor for solar power generation. Background Art

[0002] In recent years, the development and utilization of renewable energy has received increasing attention from the international community. Many countries have set clear development goals and established regulations and policies to support the development of renewable energy. New and renewable energy sources are being continuously developed, and their proportion in the overall energy mix is ​​expected to increase. Many developed countries around the world are prioritizing solar cell power generation in their renewable energy planning.

[0003] Existing terminal blocks for solar cell inverters operate at high currents and voltages, requiring high flame resistance and strength. However, improper wiring and loose connections often lead to excessive temperature rises and burn-in. Furthermore, existing products lack sufficient airtightness to meet the requirements for high-altitude operation. Utility Model Content

[0004] The purpose of the present utility model is to provide a through-the-wall terminal block with a temperature sensor for solar power generation. Each terminal is equipped with a temperature sensor to monitor temperature rise and prevent burn-in problems caused by excessive temperature rise. Moreover, the airtightness requirements are improved to meet the airtightness requirements of high-altitude areas. In addition, the present utility model has the advantages of being waterproof, dustproof, and anti-electric shock, and it also requires a small installation space and takes less time to install.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is:

[0006] A through-the-wall terminal block with a temperature sensor for solar power generation, comprising:

[0007] An insulating base includes a bottom plate, on which a plurality of longitudinal partitions are arranged in parallel and spaced relation, forming at least three independent first compartments in parallel along the length direction on the top surface of the bottom plate, and a baffle connected to the longitudinal partition is provided at the rear end of the first compartment; correspondingly, a support plate is vertically provided along the length direction on the bottom surface of the bottom plate, and a plurality of partitions are arranged in parallel and spaced relation on the support plate to form a plurality of second compartments corresponding to the first compartments one by one, and a slot is provided on the bottom plate between the first compartment and the second compartment to connect the two compartments; a mounting platform is protruded on the top surface of the bottom plate within the first compartment, and a blind hole is provided on the mounting platform; and a connecting hole is provided on the support plate corresponding to the second compartment;

[0008] at least three first binding screws, each having a stepped shaft structure, wherein the upper diameter of the first binding screw is smaller than the lower diameter, and a washer and a nut are provided at the step and the lower portion of the upper stepped shaft structure, respectively; the heads of the first binding screws are embedded in blind holes in the first compartment mounting platform;

[0009] At least three conductive plates, each L-shaped, including an upper connecting portion and a downwardly bent lower connecting portion, with a first connecting through-hole, a second connecting through-hole, and a third connecting through-hole respectively defined on either side of the upper connecting portion and the lower connecting portion; the upper connecting portion being inserted into the lower portion of the first binding screw through the first connecting through-hole and being locked by a nut; the lower connecting portion being inserted into the second compartment through a slot on the bottom plates of the first and second compartments and being secured to the support plate of the second compartment via a second binding screw and a second connecting through-hole on one side of the lower connecting portion;

[0010] At least three temperature sensors are provided corresponding to the conductive plates one by one, and the connection ends of the temperature sensors are connected to the third connection through holes on the other side of the lower connection portion of the conductive plates through third connection screws;

[0011] The protective cover is arranged on the upper end of the insulating base.

[0012] Preferably, a slot and a partition plate inserted therein are provided between the second connecting through holes and the third connecting through holes on both sides of the lower connecting portion of the conductive plate.

[0013] Preferably, the slot hole connecting the two compartments and the lower connecting portion of the conductive plate inserted therein are sealed with glue on the bottom plate between the first compartment and the second compartment.

[0014] Preferably, the bottom surface of the insulating base bottom plate is provided with an annular sealing groove and a waterproof sealing ring around the second compartment.

[0015] Preferably, it also includes insulating spacers, which are respectively arranged at the front ends of the longitudinal partitions of the first compartment of the insulating base.

[0016] Preferably, the first compartment on the top surface of the bottom plate and the second compartment on the bottom surface are staggered left and right, and correspondingly, the upper connecting portion and the lower connecting portion of the conductive plate are staggered left and right.

[0017] Preferably, a press-in nut is provided in the connection hole of the lower connection portion of the conductive plate. Preferably, the press-in nut and the conductive plate are riveted and formed into one body. Accordingly, the stud, corrugated washer and washer of the first connecting screw are designed as one body.

[0018] Preferably, shaft holes are provided at the rear of the upper ends of both side surfaces of the insulating base, and correspondingly, short shafts are protruding at the rear of both side surfaces of the protective cover, thereby being pivotally connected to the insulating base.

[0019] Preferably, fixing holes are respectively provided on the front and rear of the top surface of the bottom plate of the insulating base. Preferably, a fixing hole and a fixing sleeve are provided in front of the mounting platform in the first compartment on the top surface of the bottom plate and are sealed by an insulating plug.

[0020] Preferably, the bottom plate, longitudinal partition, baffle and support plate of the insulating base are an integrated structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, each terminal block, i.e., the conductive plate, is provided with a temperature sensor to monitor temperature rise and prevent burn-in problems caused by excessive temperature rise. Moreover, the temperature sensor is provided next to the conductive plate connection point, which enables more accurate temperature monitoring.

[0023] The utility model integrates the wiring terminal and the temperature sensor into one body, thereby reducing the installation space; and by designing a partition plate, misalignment of the wiring terminal and the temperature sensor can be prevented.

[0024] In addition, the power supply side and the load side of the insulating base of the present invention are sealed with complete glue rings, which can meet strict airtightness requirements and solve the technical problem that the existing products do not meet the airtightness requirements in areas with higher altitudes.

[0025] At the same time, the utility model also combines the waterproof sealing design of the bottom of the insulating base and the embedded molding of the conductive plate and the main body (insulating base) to meet the IP65 waterproof grade.

[0026] The conductive plate and wiring method of the utility model adopt an upper and lower vertical design, which has a wider range of use occasions and a smaller operating space, and is particularly suitable for through-wall terminal blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional embodiment of the present utility model Figure 1 ;

[0028] Figure 2 The three-dimensional embodiment of the present utility model Figure 2 ;

[0029] Figure 3 It is a front view of an embodiment of the utility model;

[0030] Figure 4 This is a three-dimensional exploded view of an embodiment of the present utility model;

[0031] Figure 5 The three-dimensional structure of the insulating base in the embodiment of the utility model Figure 1 ;

[0032] Figure 6 The three-dimensional structure of the insulating base in the embodiment of the utility model Figure 2 . DETAILED DESCRIPTION

[0033] See also Figures 1 to 6 The utility model provides a through-the-wall terminal block with a temperature sensor for solar power generation, which includes:

[0034] The insulating base 1 includes a bottom plate 11 on which a plurality of longitudinal partitions 12 are arranged in parallel and spaced apart. Three independent first compartments 101 are formed in parallel on the top surface of the bottom plate 11 along the longitudinal direction. A baffle 13 connected to the longitudinal partition 12 is provided at the rear of the first compartment 101; correspondingly, a support plate 14 is vertically provided on the bottom surface of the bottom plate 11 along the longitudinal direction. A plurality of partitions 15 are arranged in parallel and spaced apart on the support plate 14 to form second compartments 102 corresponding to the first compartments 101 one by one. A slot 103 is provided on the bottom plate between the first compartment 101 and the second compartment 102 to connect the two compartments; a mounting platform 16 is provided on the top surface of the bottom plate 11 within the first compartment 101, and a blind hole 161 is provided on the mounting platform 16; a connecting hole 141 is provided on the support plate 14 corresponding to the second compartment 102;

[0035] Three first binding screws 2, each having a stepped shaft structure with an upper diameter smaller than a lower diameter. Washers and nuts are provided at the upper step and the lower portion of the stepped shaft structure, respectively. The heads of the first binding screws 2 are embedded in blind holes 161 on the mounting platform 16 of the first compartment 101.

[0036] Three conductive plates 3, each of which (using conductive plate 3 as an example, the same applies below) is L-shaped and includes an upper connecting portion 31 and a downwardly bent lower connecting portion 32. A first connecting through-hole 311, a second connecting through-hole 321, and a third connecting through-hole 322 are respectively defined on either side of the upper connecting portion 31 and the lower connecting portion 32. The upper connecting portion 31 is inserted into the lower portion of the first binding screw 2 through the first connecting through-hole 311 and is locked with a nut. The lower connecting portion 32 is inserted into the second compartment 102 through the slot 103 on the bottom plate 11 between the first and second compartments 101, 102, and is secured to the support plate 14 of the second compartment 102 via the second binding screw 4 and a second connecting through-hole 321 on one side of the lower connecting portion 32.

[0037] At least three temperature sensors 5 are provided corresponding to the conductive plates 3 one by one, and the connection ends of the temperature sensors 5 are connected to the third connection through holes 322 on the other side of the lower connection portion 32 of the conductive plate 3 through third connection screws 6;

[0038] The protective cover 7 is arranged on the upper end of the insulating base 1 .

[0039] Furthermore, a slot 323 and a partition plate 9 inserted therein are provided between the second connecting through holes 321 and the third connecting through holes 322 on both sides of the lower connecting portion 32 of the conductive plate 3 .

[0040] Preferably, the bottom plate 11 between the first compartment 101 and the second compartment 102 is sealed with glue (glue 100) by the slot 103 connecting the two compartments and the lower connecting portion 32 of the conductive plate 3 inserted therein.

[0041] Preferably, the bottom surface of the bottom plate 11 of the insulating base 1 is provided with an annular sealing groove 17 and a waterproof sealing ring 8 around the second compartment 102 .

[0042] Furthermore, it also includes insulating spacers, which are respectively arranged at the front ends of the longitudinal partitions 12 of the first compartment 101 of the insulating base 1.

[0043] Preferably, a press-in nut is provided in the connection hole of the lower connection portion 32 of the conductive plate 3. Preferably, the press-in nut and the conductive plate are riveted and formed into one piece. Accordingly, the stud, corrugated washer and washer of the first connecting screw are designed as one piece.

[0044] Preferably, shaft holes 18 are provided at the rear of the upper ends of both side surfaces of the insulating base 1 , and correspondingly, short shafts 71 are protruded at the rear of both side surfaces of the protective cover 7 , thereby being pivotally connected to the insulating base 1 .

[0045] Preferably, fixing holes 19 and 19' are respectively provided in the front and rear of the top surface of the bottom plate 11 of the insulating base 1. Preferably, a fixing hole 19 and a fixing sleeve 191 are provided in front of the mounting platform 16 in the first compartment 101 on the top surface of the bottom plate and are sealed by an insulating plug 192.

[0046] Preferably, the first compartment 101 on the top surface of the bottom plate 11 and the second compartment 102 on the bottom surface are staggered left and right, and correspondingly, the upper connecting portion 31 and the lower connecting portion 32 of the conductive plate 3 are staggered left and right.

[0047] Preferably, the bottom plate 11 , the longitudinal partition 12 , the baffle 13 , and the support plate 14 of the insulating base 1 are an integrated structure.

[0048] It should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the scope of the present invention, and all such modifications and equivalents shall be encompassed by the claims of the present invention.

Claims

1. A through-the-wall terminal block with a temperature sensor for solar power generation, characterized in that: The insulating base comprises a bottom plate, on which a plurality of longitudinal partitions are arranged in parallel and at intervals, forming at least three independent first compartments in parallel on the top surface of the bottom plate along the length direction, and a baffle connected to the longitudinal partition is provided at the rear end of the first compartment; correspondingly, a support plate is vertically provided on the bottom surface of the bottom plate along the length direction, and a plurality of partitions are arranged in parallel and at intervals on the support plate to form a plurality of second compartments corresponding to the first compartments one by one, and a slot is provided on the bottom plate between the first compartment and the second compartment to connect the two compartments; a mounting platform is convexly provided on the top surface of the bottom plate in the first compartment, and a blind hole is provided on the mounting platform; A connecting hole is provided on the support plate corresponding to the second compartment; at least three first binding screws, each having a stepped shaft structure, wherein the upper diameter of the first binding screw is smaller than the lower diameter, and a washer and a nut are provided at the step and the lower portion of the upper stepped shaft structure, respectively; the heads of the first binding screws are embedded in blind holes in the first compartment mounting platform; At least three conductive plates, each L-shaped, including an upper connecting portion and a downwardly bent lower connecting portion, with a first connecting through-hole, a second connecting through-hole, and a third connecting through-hole respectively defined on either side of the upper connecting portion and the lower connecting portion; the upper connecting portion being inserted into the lower portion of the first binding screw through the first connecting through-hole and being locked by a nut; the lower connecting portion being inserted into the second compartment through a slot on the bottom plates of the first and second compartments and being secured to the support plate of the second compartment via a second binding screw and a second connecting through-hole on one side of the lower connecting portion; At least three temperature sensors are provided corresponding to the conductive plates one by one, and the connection ends of the temperature sensors are connected to the third connection through holes on the other side of the lower connection portion of the conductive plates through third connection screws; The protective cover is arranged on the upper end of the insulating base.

2. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: A slot and a partition plate inserted therein are provided between the second connecting through holes and the third connecting through holes on both sides of the lower connecting portion of the conductive plate.

3. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: The bottom plate between the first compartment and the second compartment is sealed by filling glue with the slot hole connecting the two compartments and the lower connecting portion of the conductive plate inserted therein.

4. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: The bottom surface of the insulating base bottom plate is provided with an annular sealing groove and a waterproof sealing ring around the second compartment.

5. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1 or 2, characterized in that: It also includes insulating spacers, which are respectively arranged at the front ends of the longitudinal partitions of the first compartment of the insulating base.

6. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: The first compartment on the top surface of the bottom plate and the second compartment on the bottom surface are staggered left and right. Correspondingly, the upper connecting portion and the lower connecting portion of the conductive plate are staggered left and right.

7. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: A press-in nut is provided in the connection hole of the lower connection part of the conductive plate. Preferably, the press-in nut and the conductive plate are riveted and formed into one body. Accordingly, the stud, corrugated washer and washer of the first connecting screw are designed as one body.

8. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, 2 or 3, wherein: Axial holes are provided at the rear of the upper ends of both side surfaces of the insulating base. Correspondingly, short shafts are protruded at the rear of both side surfaces of the protective cover to be pivotally connected to the insulating base.

9. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, wherein: The insulating base is provided with fixing holes on the front and rear of the bottom plate top surface respectively. Preferably, a fixing hole and a fixing sleeve are provided in front of the mounting platform in the first compartment on the top surface of the bottom plate and are sealed by an insulating plug.

10. The through-the-wall terminal block with a temperature sensor for solar power generation according to claim 1, 2, 3, 4, 5, or 7, wherein: The bottom plate, longitudinal partition plate, baffle plate and support plate of the insulating base are an integrated structure.

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