Temperature detection device, connector and photovoltaic power generation system

Abstract

The invention relates to a temperature detection device, a connector and a photovoltaic power generation system. The temperature detection device comprises an insulating connecting piece and a temperature detector. The temperature detector is connected to the insulating connecting piece; the insulating connecting piece is provided with a terminal connecting area, and the terminal connecting area is used for connecting a wiring terminal. The temperature detector and the terminal connection area are arranged at an interval along a first direction, so that the temperature detector is electrically isolated from the wiring terminal connected to the terminal connection area; the temperature detector is used for detecting the temperature of the wiring terminal connected to the terminal connection area. The temperature detector is used for detecting the temperature of the wiring terminal, so that the temperature of the wiring terminal can be obtained in time, and potential safety hazards caused by heating of the wiring terminal can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic power generation, and in particular relates to a temperature detection device, a connector and a photovoltaic power generation system. Background Art

[0002] In a photovoltaic power generation system, it is necessary to electrically connect the solar panel and the inverter using corresponding wiring terminals so that the current on the solar panel can be transmitted to the inverter.

[0003] As a current-carrying component, large currents pass through the terminal blocks for a long time, which will cause the terminal blocks to generate a lot of heat, thereby posing a greater safety hazard to the photovoltaic power generation system. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the problem in the prior art that a large current will pass through the connection terminals connecting the solar panels and the inverter for a long time, which will cause the connection terminals to generate a large amount of heat, causing a large safety hazard in the photovoltaic power generation system, a temperature detection device, a connector and a photovoltaic power generation system are provided.

[0005] To solve the above technical problems, an embodiment of the present invention provides a temperature detection device, comprising an insulating connector and a temperature detector; the temperature detector is connected to the insulating connector; a terminal connection area is provided on the insulating connector, and the terminal connection area is used to connect a wiring terminal; the temperature detector and the terminal connection area are spaced apart along a first direction so as to electrically isolate the temperature detector and the wiring terminal connected to the terminal connection area; the temperature detector is used to detect the temperature of the wiring terminal connected to the terminal connection area.

[0006] Optionally, the temperature detector includes a temperature sensing portion and a signal line that are electrically connected; the temperature sensing portion and the signal line are arranged along a second direction; and / or the signal line extends along the second direction; and the first direction is perpendicular to the second direction.

[0007] Optionally, in the second direction, the insulating connector has a first surface and a second surface arranged opposite to each other; a mounting hole is provided on the second surface, and the mounting hole extends toward the first surface; the temperature sensing part is located in the mounting hole; in the second direction, an end of the signal line close to the temperature sensing part is located in the mounting hole, and an end of the signal line facing away from the temperature sensing part extends out of the mounting hole from the second surface.

[0008] Optionally, the temperature detection device also includes an insulating shielding member, which is connected to the insulating connecting member; at least a portion of the insulating shielding member is located between the signal line and the wiring terminal connected to the terminal connection area; the portion of the insulating shielding member located between the signal line and the wiring terminal connected to the terminal connection area protrudes from the signal line along the direction from the first surface to the second surface.

[0009] Optionally, the insulating shielding member is arranged on the second surface; and / or the insulating shielding member is an open-loop structure and surrounds the signal line; one axial end of the open-loop structure is connected to the insulating connector, and the other axial end of the open-loop structure protrudes out of the signal line along the direction from the temperature sensing part to the signal line; the opening between the two circumferential ends of the open-loop structure is located on the side of the open-loop structure away from the terminal.

[0010] Optionally, a mounting groove is provided on the inner surface of the insulating connector, and the mounting groove extends to the second surface; wherein the inner surface of the insulating connector is used to enclose the mounting hole; in the second direction, the mounting groove is spaced apart from the bottom surface of the mounting hole; the signal line comprises a first connection portion, a second connection portion and a third connection portion which are connected in sequence; in the first direction, the first connection portion is located between the second connection portion and the wiring terminal, and the second connection portion is located between the third connection portion and the wiring terminal; in the second direction, the first connection portion is located between the second connection portion and the temperature sensing portion, and the second connection portion is located between the third connection portion and the temperature sensing portion; the first connection portion is electrically connected to the temperature sensing portion; the second connection portion is located in the mounting groove, and in the second direction, the second connection portion abuts against the groove wall of the mounting groove; the third connection portion is located in the mounting groove and extends out of the mounting hole.

[0011] Optionally, a first limiting structure is provided on the groove wall of the mounting groove, and a second limiting structure is provided on the signal line; the first limiting structure and the second limiting structure cooperate to limit the position of the signal line in the depth direction of the mounting groove; wherein, in the first direction, the mounting hole is located between the mounting groove and the wiring terminal; and / or, the first limiting structure is a limiting groove arranged on at least one of the two groove walls in the width direction of the mounting groove, the limiting groove extends through the second surface, and the second limiting structure is a limiting block arranged on the third connecting part, and the limiting block is located in the limiting groove.

[0012] Optionally, the temperature detection device further includes an insulating filling piece, which is filled in the mounting hole and covers the temperature sensing portion and the signal line.

[0013] Optionally, the signal line includes a lead and a pin; the lead is electrically connected to the temperature sensing part and extends along the second direction; in the second direction, the pin is electrically connected to an end of the lead away from the temperature sensing part, and the hardness of the pin is greater than the hardness of the lead; and / or, the temperature detector is provided with two signal lines, and the two signal lines are spaced apart along a third direction; the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

[0014] Optionally, the terminal connection area is provided with a second clamping structure, and the second clamping structure is used to clamp the wiring terminal; the second clamping structure and the insulating connector are arranged in sequence in the first direction.

[0015] To solve the above technical problems, an embodiment of the present invention further provides a connector, comprising a wiring terminal and a temperature detection device as described in any one of the above items; the wiring terminal is connected to the terminal connection area and is electrically isolated from the temperature detector; the wiring terminal is used to electrically connect the solar cell panel and the inverter.

[0016] Optionally, in the second direction, two opposite ends of the connection terminal are used to connect the solar cell panel and the inverter respectively.

[0017] Optionally, the wiring terminal and the insulating connector are detachably connected; or, the wiring terminal and the insulating connector are an integral structure.

[0018] Optionally, a first clamping structure is provided on the wiring terminal, and a second clamping structure is provided on the terminal connection area; the first clamping structure cooperates with the second clamping structure so that the wiring terminal can be detachably clamped to the insulating connector.

[0019] Optionally, the wiring terminals and the temperature detector are arranged at intervals along a first direction; the wiring terminals and the insulating connectors are arranged in sequence in the first direction; in the first direction, the first clip structure is arranged on the surface of the wiring terminals close to the insulating connector, and the second clip structure is arranged on the surface of the insulating connector close to the wiring terminals. To solve the above technical problems, an embodiment of the present invention further provides a photovoltaic power generation system, comprising a solar panel, an inverter and any one of the connectors described above; the connection terminals are electrically connected to the solar panel and the inverter respectively.

[0020] In the temperature detection device, connector and photovoltaic power generation system provided in the embodiments of the present invention, the temperature of the terminal block is detected by a temperature detector, so that the temperature of the terminal block can be obtained in time, thereby helping to reduce the safety hazards caused by the heating of the terminal block.

[0021] In addition, the electrical isolation between the wiring terminal and the temperature detector is achieved by the insulating connector, so that the large current on the wiring terminal can be prevented from having an adverse effect on the temperature detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the connector provided by one embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the connector provided by one embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 The structure of the connector provided by one embodiment of the present invention is shown in FIG. Figure 3 ; Figure 4 is a schematic structural diagram of a temperature detector for a connector provided by an embodiment of the present invention; Figure 5 It is a partial structural schematic diagram of a temperature detector of a connector provided by an embodiment of the present invention; Figure 6 is a schematic diagram of pins of a temperature detector of a connector provided by an embodiment of the present invention; Figure 7 Schematic diagram of an insulating member of a temperature detector of a connector provided by an embodiment of the present invention Figure 1 ; Figure 8 yes Figure 7 AA section view in the figure; Fig. 9 Schematic diagram of an insulating member of a temperature detector of a connector provided by an embodiment of the present invention Figure 2 ; Fig.10 yes Fig. 9 BB section view in the figure; Fig.11 Schematic diagram of an insulating member of a temperature detector of a connector provided by an embodiment of the present invention Figure 3 ; Fig.12 It is a schematic diagram of a connection terminal of a temperature detector of a connector provided by an embodiment of the present invention.

[0023] The reference numerals in the specification are as follows: 10. Connector; 1. Wiring terminal; 2a. Temperature detection device; 2. Temperature detector; 21. Temperature sensing part; 22. Signal line; 23. Lead wire; 24. Pin; 25. First connection part; 26. Second connection part; 27. Third connection part; 28. Second limiting structure; 3. Insulating connector; 3a. Terminal connection area; 31. First surface; 32. Second surface; 33. Mounting hole; 331. First side wall; 332. Second side wall; 333. Third side wall; 334. Fourth side wall; 335. Top wall; 34. Mounting groove; 35. First limiting structure; 4. Insulation shielding parts; 5. Insulation filling parts; 6. First clamping structure; 61. Clamping block; 62. First clamping member; 621. First clamping arm; 622. Second clamping arm; 63. Second clamping member; 631. Third clamping arm; 632. Fourth clamping arm; 7. Second clamping structure; 71. Clamping slot; 72. Third clamping member; 721. First side surface; 722. Second side surface; 723. First groove; 724. Second groove. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The terms such as "upper", "lower", "left", "right", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0026] like Figure 1 and Figure 2 As shown, in one embodiment, the connector 10 includes a terminal 1 and a temperature detection device 2a, the terminal 1 is used to electrically connect the solar panel and the inverter, the terminal 1 is connected to the temperature detection device 2a, and the temperature of the terminal 1 can be detected by the temperature detection device 2a.

[0027] The temperature of the connection terminal 1 is detected by the temperature detection device 2a, so that the temperature of the connection terminal 1 can be obtained in time, which is helpful to reduce the safety hazard caused by the heating of the connection terminal 1.

[0028] In actual use, the temperature detection device 2a can also be connected to the controller for communication, and the detection result of the temperature detection device 2a can also be transmitted to the controller, so that when the temperature of the terminal 1 is too high, the controller can take corresponding protective measures, such as cutting off the circuit where the terminal 1 is located, cooling the terminal 1, and issuing an alarm prompt, etc., thereby reducing the safety hazards caused by the heating of the terminal 1.

[0029] It should be understood that, in addition to being connected to the wiring terminals 1 for realizing electrical connection between the solar panel and the inverter, in other application scenarios, the temperature detection device 2a can also be used to connect to the wiring terminals for realizing electrical connection of other components.

[0030] like Figure 1 and Figure 3 As shown, in one embodiment, the temperature detection device 2a includes a temperature detector 2 and an insulating connector 3; the temperature detector 2 is connected to the insulating connector 3; the insulating connector 3 is provided with a terminal connection area 3a, and the terminal connection area 3a is used to connect the wiring terminal 1; the temperature detector 2 and the terminal connection area 3a are arranged at intervals along a first direction so as to electrically isolate the temperature detector 2 and the wiring terminal 1 connected to the terminal connection area 3a; the temperature detector 2 is used to detect the temperature of the wiring terminal 1 connected to the terminal connection area 3a. Figures 3 to 5 In the directions shown, the first direction is parallel to the X-axis.

[0031] After the temperature detection device 2 a and the wiring terminal 1 are assembled, the temperature detector 2 and the wiring terminal 1 can be electrically isolated by the insulating connector 3 , so as to prevent the large current on the wiring terminal 1 from having an adverse effect on the temperature detector 2 .

[0032] In addition, after the temperature detection device 2a and the terminal 1 are assembled, the terminal 1 and the temperature detector 2 are arranged on the insulating connector 3 at intervals along the first direction, and at least a portion of the insulating connector 3 is located between the terminal 1 and the temperature detector 2, thereby improving the electrical isolation effect of the terminal 1 and the temperature detector 2.

[0033] In one embodiment, the insulating connector 3 may be made of plastic, rubber, ceramic or the like.

[0034] like Figures 3 to 5 As shown, in one embodiment, the temperature detector 2 includes a temperature sensing portion 21 and a signal line 22, the temperature sensing portion 21 and the signal line 22 are electrically connected, and the signal line 22 extends along the second direction, and / or the temperature sensing portion 21 and the signal line 22 are arranged along the second direction; wherein the first direction is perpendicular to the second direction. In this way, the maximum size of the temperature detector 2 in the first direction can be reduced, thereby facilitating the miniaturization design of the connector 10.

[0035] exist Figures 3 to 5 In the orientation shown, the second direction is parallel to the Z-axis.

[0036] The temperature sensing portion 21 may be a thermistor, and the signal line 22 is a lead wire of the thermistor. Alternatively, the temperature sensing portion 21 may also include a thermistor and a packaging structure for packaging the thermistor, and in this case, the signal line 22 may be the portion of the lead wire of the thermistor that is located outside the packaging structure. In addition, the arrangement of the temperature sensing portion 21 and the signal line 22 may adopt the existing technology, and this embodiment will not be described in detail here.

[0037] In addition, the signal line 22 extends along the second direction, which means that at least a portion of the signal line 22 extends along the second direction. Specifically, the entire signal line 22 extends along the second direction, or, in addition to the portion extending along the second direction, the signal line 22 may also have a portion extending along other directions, such as the portion extending along the first direction. Moreover, when a portion of the signal line 22 extends along a certain direction, the length of the portion may be parallel to the direction, or the length direction of the portion may also be an acute angle or an obtuse angle with the direction, that is, at this time, the length of the portion has a component in the direction.

[0038] The temperature sensing portion 21 and the signal line 22 are arranged along the second direction, which means that the signal line 22 is located on one side of the temperature sensing portion in the second direction, which is beneficial to further reduce the maximum size of the temperature detector 2 in the first direction.

[0039] It should be understood that the number of the signal lines 22 is two, and the two signal lines 22 are respectively the positive lead line and the negative lead line of the temperature sensing portion 21 .

[0040] In one embodiment, the two signal lines 22 may be spaced apart along a third direction, wherein the third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction. Figure 4 and Figure 5 In the directions shown, the third direction is parallel to the Y-axis.

[0041] like Figure 4 and Figure 6 As shown, in one embodiment, the signal line 22 includes a lead 23 and a pin 24; wherein the lead 23 extends along the second direction, and the lead 23 is electrically connected to the temperature sensing portion 21; in addition, in the second direction, the pin 24 is electrically connected to an end of the lead 23 away from the temperature sensing portion 21. When in use, the signal line 22 is electrically connected to the controller through the pin 24. In addition, the hardness of the pin 24 is greater than the hardness of the lead 23.

[0042] In actual application, since the hardness of pin 24 is greater than that of lead 23, pin 24 is less likely to deform than lead 23. In this way, after pin 24 is connected to the electrical connection component, it can effectively prevent pin 24 from being deformed and short-circuited with the surrounding conductive components, thereby improving the safety of temperature detector 2.

[0043] In addition, the pin 24 has a relatively large hardness, and can be plugged into and matched with a corresponding electrical connection component in a device such as a controller, thereby improving the ease of use of the temperature detector 2.

[0044] In addition, the cross-section of the lead wire can be circular, elliptical, rectangular or other multiple deformations, and the lead wire can be straight or curved or bent. The cross-section of the lead wire can be circular, elliptical, rectangular or other multiple deformations, and the lead wire can be straight or curved or bent.

[0045] It should be understood that in other embodiments, the signal line 22 may only have a lead 23 but not a pin 24. In this case, the lead 23 may be electrically connected to an electrical connection component of a controller, etc., thereby achieving electrical connection between the signal line 22 and the electrical connection component.

[0046] like Figure 7 and Figure 8 As shown, in one embodiment, in the second direction, the insulating connector 3 has a first surface 31 and a second surface 32 that are arranged opposite to each other; a mounting hole 33 is provided on the second surface 32, and the mounting hole 33 extends toward the first surface 31; the temperature sensing portion 21 is located in the mounting hole 33; in the second direction, one end of the signal line 22 close to the temperature sensing portion 21 is located in the mounting hole 33 and connected to the temperature sensing portion 21, and one end of the signal line 22 away from the temperature sensing portion 21 extends out of the mounting hole 33 from the second surface 32. In this way, the temperature sensing portion 21 can be shielded and protected by the insulating connector 3 to prevent it from being damaged by collision with foreign objects, thereby increasing the service life of the temperature detector 2.

[0047] In addition, when the signal line 22 includes a lead 23 and a pin 24, the lead 23 can be completely located in the mounting hole 33, one end of the pin 24 is located in the mounting hole 33 to electrically connect the lead 23, and the end of the pin 24 facing away from the lead 23 extends out of the mounting hole 33 from the second surface 32.

[0048] like Figure 8 As shown, in one embodiment, the mounting hole 33 is a blind hole, which does not penetrate through the first surface 31 .

[0049] like Figure 1 , Figure 8 and Fig. 9As shown, in one embodiment, the connector 10 also includes an insulating shielding member 4, which is connected to the insulating connector 3, and at least a portion of the insulating shielding member 4 is located between the signal line 22 and the terminal 1 connected to the terminal connection area 3a; the portion of the insulating shielding member 4 located between the signal line 22 and the terminal 1 connected to the terminal connection area 3a (this portion is defined as the first portion) protrudes from the signal line 22 in the second direction and along the direction from the first surface 31 to the second surface 32.

[0050] The first portion may also be located between the signal line 22 and the terminal connection area 3 a , so that the first portion is located between the signal line 22 and the connection terminal 1 connected to the terminal connection area 3 a .

[0051] Among them, the first part protrudes the signal line 22 in the second direction and along the direction from the first surface 31 to the second surface 32, which can mean that; in the second direction, the height of the end surface of the first part away from the first surface relative to the second surface 32 is greater than the height of the end surface of the signal line 22 away from the first surface 31 relative to the second surface 32, that is, in the second direction, the distance between the surface of the first part farthest from the first surface 31 and the second surface 32 is greater than the distance between the surface of the signal line 22 farthest from the first surface 31 and the second surface 32.

[0052] In this way, the electrical isolation effect between the portion of the signal line 22 extending out of the insulating connector 3 and the terminal 1 can be improved, thereby improving the electrical isolation effect between the temperature detector 2 and the terminal 1. In addition, by setting the insulating shielding member 4, the first portion of the signal line 22 can be closer to the terminal 1 in the first direction, which is more conducive to the miniaturization design of the connector 10.

[0053] The insulating shielding member 4 may be made of plastic, rubber or ceramic.

[0054] In one embodiment, the insulating connector 3 and the insulating shielding member 4 may be an integral structure, for example, both may be made of plastic, and in this case, the two may be integrally formed by injection molding. Of course, in other embodiments, the insulating connector 3 and the insulating shielding member 4 may also be separately arranged, and the two may be fixed together by means of a clamping connection or by means of a connecting member such as a bolt.

[0055] like Figure 8 As shown, in one embodiment, the insulating shielding member 4 is disposed on the second surface 32. Such a configuration is more conducive to the insulating shielding member 4 protruding the signal line 22 along the direction from the first surface 31 to the second surface 32.

[0056] like Figure 1As shown, in one embodiment, the insulating shielding member 4 is an open-loop structure and surrounds the signal line 22; one axial end of the open-loop structure is connected to the insulating connector 3, and the other axial end of the open-loop structure protrudes out of the signal line 22 along the direction from the temperature sensing part 21 to the signal line 22; the opening between the two circumferential ends of the open-loop structure is located on the side of the open-loop structure away from the terminal connection area 3a.

[0057] This can further improve the shielding and protecting effect of the insulating shielding member 4 on the signal line 22, and also facilitate the electrical connection between the signal line 22 and the external electrical connection components.

[0058] The axial direction of the open-loop structure may be parallel to the first direction, or the axial direction of the open-loop structure may be at an acute angle or an obtuse angle with the first direction.

[0059] In addition, the insulating shielding member 4 may also surround the outer side of the opening formed by the avoidance hole on the second surface 32 .

[0060] In one embodiment, the shape of the insulating shielding member 4 may match the insulating connector 3. Figure 1 and Fig. 9 In the example shown, the insulating connector 3 is a rectangular parallelepiped structure, wherein the first direction is the thickness direction of the insulating connector 3, the second direction is the length direction of the insulating connector 3, and the third direction is the width direction of the insulating connector 3. At this time, the insulating shielding member 4 can be a square ring, wherein the width direction of the insulating shielding member 4 is parallel to the width direction of the insulating connector 3, the width of the insulating shielding member 4 can be equal to the width of the insulating connector 3, the thickness direction of the insulating shielding member 4 is parallel to the thickness direction of the insulating connector 3, and the thickness of the insulating shielding member 4 can be equal to the thickness of the insulating connector 3.

[0061] In addition, the mounting hole 33 may be a rectangular hole, wherein the thickness direction of the mounting hole 33 is parallel to the first direction, the length direction of the mounting hole 33 is parallel to the second direction, and the width direction of the mounting hole 33 is parallel to the third direction.

[0062] like Figure 8 and Fig.10As shown, when the insulating connector 3 is the above-mentioned cuboid and the mounting hole 33 is the above-mentioned rectangular hole, the hole wall of the mounting hole 33 includes a first side wall 331, a second side wall 332, a third side wall 333, a fourth side wall 334 and a top wall 335, and the first side wall 331, the second side wall 332, the third side wall 333, the fourth side wall 334 and the top wall 335 enclose the mounting hole 33; wherein the first side wall 331 and the second side wall 332 are spaced apart in the second direction, the third side wall 333 and the fourth side wall 334 are spaced apart in the third direction, the first side wall 331 is connected to the third side wall 333 and the fourth side wall 334 at two ends in the third direction, and the second side wall 332 is connected to the third side wall 333 and the fourth side wall 334 at two ends in the third direction; in the second direction, the first side wall 331, the second side wall 332, the third side wall 333 and the fourth side wall 334 are all connected to the same side of the top wall 335.

[0063] The first surface 31 is a surface of the top wall 335 away from the first side wall 331 in the second direction, and the bottom surface of the mounting hole 33 is at least a portion of the surface of the top wall 335 close to the first side wall 331 in the second direction.

[0064] The second surface 32 includes a surface of the first side wall 331 facing away from the top wall 335, a surface of the second side wall 332 facing away from the top wall 335, a surface of the third side wall 333 facing away from the top wall 335, and a surface of the fourth side wall 334 facing away from the top wall 335. In addition, the surface of the first side wall 331 facing away from the top wall 335, the surface of the second side wall 332 facing away from the top wall 335, the surface of the third side wall 333 facing away from the top wall 335, and the surface of the fourth side wall 334 facing away from the top wall 335 may be arranged flush, in which case the second surface 32 is a plane, and the plane may be perpendicular to the second direction.

[0065] In the first direction, at least a portion of the surface of the first side wall 331 away from the second side wall 332 is the terminal connection area 3a. After assembly, in the first direction, the first side wall 331 is located between the second side wall 332 and the connection terminal 1.

[0066] like Figure 8 , Fig.10 and Fig.11 As shown, in one embodiment, a mounting groove 34 is provided on the inner surface of the insulating connector 3, and the mounting groove 34 extends through the second surface 32; wherein the inner surface of the insulating connector 3 is used to enclose a mounting hole 33; the signal line is arranged in the mounting groove 34 and extends out of the mounting groove 34 to form the mounting hole 33.

[0067] The signal line 22 is stuck in the mounting groove 34 . At this time, the two side walls of the mounting groove 34 in the width direction can respectively abut the signal line 22 , thereby preventing the temperature detector 2 from shaking in the mounting hole 33 .

[0068] In addition, in the first direction, the mounting hole 33 may be located between the mounting groove 34 and the wiring terminal 1 , so that the signal line 22 may be further away from the wiring terminal 1 , which is beneficial to improve the electrical isolation effect between the two.

[0069] Specifically, the mounting groove 34 may be provided on the second side wall 332 and located on the surface of the second side wall 332 close to the first side wall 331. At this time, the width direction of the mounting groove 34 is parallel to the third direction.

[0070] like Figure 8 As shown, in one embodiment, in the second direction, the mounting groove 34 is spaced apart from the bottom surface of the mounting hole 33 , that is, in the second direction, the mounting groove 34 does not extend to the bottom surface of the mounting hole 33 .

[0071] In addition, the signal line 22 includes a first connection portion 25, a second connection portion 26 and a third connection portion 27 connected in sequence; in the first direction, the first connection portion 25 is located between the second connection portion 26 and the wiring terminal 1, and the second connection portion 26 is located between the third connection portion 27 and the wiring terminal 1; in the second direction, the first connection portion 25 is located between the second connection portion 26 and the temperature sensing portion 21, and the second connection portion 26 is located between the third connection portion 27 and the temperature sensing portion 21; the first connection portion 25 is electrically connected to the temperature sensing portion 21; the second connection portion 26 is located in the mounting groove 34, and in the second direction, the second connection portion 26 abuts against the groove wall of the mounting groove 34; the third connection portion 27 is located in the mounting groove 34 and extends out of the mounting hole 33.

[0072] The signal line 22 is in a Z-shaped structure. After assembly, the end of the first connection portion 25 away from the second connection portion 26 is connected to the temperature sensing portion 21, and the end of the third connection portion 27 away from the second connection portion 26 extends out of the mounting hole. In addition, the second connection portion 26 is in contact with the groove wall of the mounting groove 34, so that the signal line 22 can be prevented from moving relative to the insulating connector 3 along the direction from the second surface 32 to the first surface 31, which is more conducive to the plug-in matching of the signal line 22 and the electrical connection component.

[0073] like Fig.10 and Fig.11 As shown, in one embodiment, a first limiting structure 35 is provided on the groove wall of the mounting groove 34, and a second limiting structure 28 is provided on the signal line 22 (refer to Figure 6 ); The first limiting structure 35 cooperates with the second limiting structure 28 to limit the position of the signal line 22 in the depth direction of the installation groove 34. This arrangement can better limit the installation position of the signal line 22 on the insulating connector 3.

[0074] The depth direction of the mounting groove 34, the width direction of the mounting groove 34, and the length direction of the mounting groove 34 may be perpendicular to each other. Moreover, the length direction of the mounting groove 34 may be the first direction.

[0075] When the mounting groove 34 is disposed on the second side wall 332 , the depth direction of the mounting groove 34 may be parallel to the first direction, and the width direction of the mounting groove 34 may be parallel to the third direction.

[0076] like Fig.10 and Fig.11 As shown, in one embodiment, the first limiting structure 35 is a limiting groove provided on at least one of the two groove walls in the width direction of the mounting groove 34, the limiting groove extending through the second surface 32, and the second limiting structure 28 is a limiting block provided on the third connecting portion 27, the limiting block being located in the limiting groove. This can facilitate the arrangement of the first limiting structure 35 and the second limiting structure 28.

[0077] During assembly, the pin 24 can be installed in the installation groove 34 along the direction from the second surface 32 to the first surface 31. During this process, the limiting block can also be placed in the limiting groove to facilitate assembly.

[0078] like Fig.10 As shown, in the width direction of the installation groove 34, both side groove walls of the installation groove 34 are provided with limiting grooves, and correspondingly, both opposite sides of the third connection portion 27 are provided with limiting blocks. In addition, when the width direction of the installation groove 34 is the third direction, the limiting blocks are arranged on both sides in the width direction of the third connection portion 27. At the same time, in the first direction, the thickness of the limiting blocks can be equal to, greater than, or less than the width of the installation limiting groove.

[0079] In one embodiment, when the signal line 22 includes the lead 23 and the pin 24, the pin 24 is actually located in the mounting groove 34 and extends out of the mounting hole 33 from the mounting groove 34. At this time, the pin 24 is clamped in the mounting groove 34 so that the position of the pin 24 in the width direction of the mounting groove 34 is limited by the mounting groove 34. At the same time, in this embodiment, the first connecting portion 25, the second connecting portion 26 and the third connecting portion 27 are all part of the structure of the pin 24, that is, the pin 24 actually includes the first connecting portion 25, the second connecting portion 26 and the third connecting portion 27.

[0080] When the signal line 22 includes the lead 23 but does not include the pin 24, the lead 23 is actually located in the mounting groove 34 and extends out of the mounting hole 33 from the mounting groove 34. At this time, the lead 23 is clamped in the mounting groove 34 so that the position of the lead 23 in the width direction of the mounting groove 34 is limited by the mounting groove 34. At the same time, in this embodiment, the first connection portion 25, the second connection portion 26 and the third connection portion 27 are all part of the structure of the lead 23, that is, the lead 23 actually includes the first connection portion 25, the second connection portion 26 and the third connection portion 27.

[0081] like Figure 3 As shown, in one embodiment, the connector 10 further includes an insulating filler 5 , which is filled in the mounting hole 33 and covers the temperature sensing portion 21 and the signal line 22 .

[0082] The insulating filler 5 can prevent the temperature sensing part 21 and the signal line 2 from shaking in the mounting hole 33. It can also prevent the lead 23 from deforming, so that the temperature sensing part 21 and the lead 23 can be kept in a fixed position, thereby improving the stability of the temperature detection of the terminal 1.

[0083] The insulating filler 5 may be made of epoxy resin or the like.

[0084] In addition, the insulating filler 5 may completely fill the mounting hole 33 or only fill a portion of the mounting hole 33 .

[0085] Furthermore, the insulating filler 5 covering the temperature sensing portion 21 may mean that the insulating filler 5 completely covers the temperature sensing portion 21 , or may mean that the insulating filler 5 covers a portion of the temperature sensing portion 21 .

[0086] The insulating filler 5 covers the signal line 22 , which may mean that the insulating filler 5 covers a portion of the signal line 22 .

[0087] When the signal line 22 includes a lead 23 and a pin 24 , the insulating filler 5 covers the lead 23 , and / or the insulating filler 5 covers the pin 24 .

[0088] The insulating filler 5 covers the lead wire 23 , which may mean that the insulating filler 5 completely covers the lead wire 23 , or may mean that the insulating filler 5 covers a portion of the lead wire 23 .

[0089] The insulating filler 5 covers the pin 24 , which may mean that the insulating filler 5 covers a portion of the pin 24 .

[0090] In one embodiment, two opposite ends of the connection terminal 1 are used to connect the solar panel and the inverter, respectively. Specifically, in the first direction, two opposite ends of the connection terminal 1 are used to connect the solar panel and the inverter, respectively.

[0091] In one embodiment, the connection terminal 1 and the insulating connector 3 are detachably connected, so that when one of them is damaged, only the damaged one needs to be replaced, thereby reducing maintenance costs; alternatively, the connection terminal 1 and the insulating connector 3 are an integral structure, for example, when the insulating connector 3 is plastic, the insulating connector 3 and the connection terminal 1 can be integrally formed by injection molding.

[0092] It should be understood that when the wiring terminal 1 and the insulating connector 3 are an integral structure, the wiring terminal 1 and the insulating connector 3 are not detachable.

[0093] In other embodiments, when the wiring terminal 1 and the insulating connector 3 are not detachable, the wiring terminal 1 and the insulating connector 3 may also be separately arranged, but they cannot be detached after being connected.

[0094] like Figures 10 to 12 As shown, in one embodiment, the terminal connection area 3 a is provided with a second clamping structure 7 , and the second clamping structure 7 is used for clamping the connection terminal 1 .

[0095] In addition, the second clamping structure 7 and the insulating connector 3 are arranged sequentially in the first direction, so that the connection terminal 1 and the insulating connector 3 are arranged sequentially in the first direction.

[0096] like Figures 10 to 12 As shown, in one embodiment, the wiring terminal 1 is provided with a first clamping structure 6, and the first clamping structure 6 cooperates with the second clamping structure 7 so that the wiring terminal 1 can be detachably clamped to the insulating connector 3. This can facilitate the connection between the wiring terminal 1 and the insulating connector 3.

[0097] like Fig.10 As shown, in one embodiment, after assembly, the terminal 1 and the temperature detector 2 are spaced apart in the first direction, and the terminal 1 and the insulating connector 3 are arranged sequentially in the first direction. At this time, the terminal 1 is located on the outside of the insulating connector 3.

[0098] In addition, in the first direction, the first clamping structure 6 is arranged on the surface of the terminal 1 close to the insulating connector 3, and the second clamping structure 7 is arranged on the surface of the insulating connector 3 close to the terminal 1, that is, the terminal connection area 3a is at least a part of the surface of the insulating connector 3 close to the terminal 1.

[0099] like Fig.10 and Fig.12 As shown, in one embodiment, the first clamping structure 6 has a clamping block 61 , the second clamping structure 7 has a clamping slot 71 , and the clamping block 61 is disposed in the clamping slot 71 , thereby achieving clamping of the first clamping structure 6 and the second clamping structure 7 .

[0100] like Fig.12As shown, in one embodiment, the first clamping structure 6 includes a first clamping member 62 and a second clamping member 63, and the first clamping member 62 and the second clamping member 63 are arranged along a third space.

[0101] The first clamping member 62 includes a first clamping arm 621 and a second clamping arm 622, wherein the first clamping arm 621 is connected to the wiring terminal 1, and the second clamping arm 622 is connected to the first clamping arm 621. In the first direction, the first clamping arm 621 and the second clamping arm 622 are both located on a side of the wiring terminal 1 close to the insulating connector 3, and the second clamping arm 622 is located on a side of the first clamping arm 621 away from the wiring terminal 1, and in the third direction, the second clamping arm 622 is located on a side of the first clamping arm 621 close to the second clamping member 63.

[0102] The second clamping member 63 includes a third clamping arm 631 and a fourth clamping arm 632, wherein the third clamping arm 631 is connected to the wiring terminal 1, and the fourth clamping arm 632 is connected to the third clamping arm 631. In the first direction, the third clamping arm 631 and the fourth clamping arm 632 are both located on a side of the wiring terminal 1 close to the insulating connector 3, and the fourth clamping arm 632 is located on a side of the third clamping arm 631 away from the wiring terminal 1, and in the third direction, the fourth clamping arm 632 is located on a side of the third clamping arm 631 close to the second clamping member 63.

[0103] The second clamping arm 622 and the fourth clamping arm 632 are both the above-mentioned clamping blocks 61 .

[0104] like Fig.10 As shown, in one embodiment, the second clamping structure 7 includes a third clamping member 72. In the first direction, the third clamping member 72 is arranged on the surface of the insulating connector 3 close to the wiring terminal 1. In the third direction, the third clamping member 72 is arranged on the first side surface 721 and the second side surface 722 opposite to each other. The first side surface 721 is provided with a first groove 723, and the second side surface 722 is provided with a second groove 724. The first groove 723 and the second groove 724 are both the above-mentioned clamping groove 71.

[0105] After assembly, the second clamping arm 622 may be located in the first groove 723 , and the second clamping arm 622 may be located in the second groove 724 .

[0106] In the first direction, the width of the first groove 723 may be equal to or less than the thickness of the second clamping arm 622 ; and / or, in the first direction, the width of the second groove 724 may be equal to or less than the thickness of the fourth clamping arm 632 .

[0107] Moreover, the first groove 723 and the second groove 724 may both be rectangular grooves, and the second clamping arm and the fourth clamping arm 632 may both be rectangular parallelepiped structures.

[0108] In addition, along the direction from the first surface 31 to the second surface 32 , the first groove 723 may penetrate the third clamping member 72 in one direction, and the second groove 724 may penetrate the third clamping member 72 in one direction.

[0109] During assembly, the second clamping arm 622 can be moved into the first groove 723 along the direction from the second surface 32 to the first surface 31, and the second clamping arm 622 can be moved into the second groove 724. When the first clamping structure 6 moves toward the first surface 31 to abut against the second clamping structure 7 (for example, the second clamping arm 622 abuts against the second clamping structure 7 in the first groove 723, and / or the fourth clamping arm 632 abuts against the second clamping structure 7 in the second groove 724), it indicates that the first clamping structure 6 and the second clamping structure 7 are in place.

[0110] In one embodiment, the insulating connector 3 and the second clamping structure 7 may be an integral structure, for example, the two may be integrally formed by injection molding. In addition, the third clamping member 72 may be a block structure, and it is an insulating member.

[0111] An embodiment of the present invention further provides a photovoltaic power generation system, which includes a solar panel, an inverter, and the connector 10 described in any one of the above embodiments; the connection terminals 1 are electrically connected to the solar panel and the inverter respectively.

[0112] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature detection device, characterized in that: Including insulating connector and temperature detector; The temperature detector is connected to the insulating connector; The insulating connector is provided with a terminal connection area, and the terminal connection area is used to connect the wiring terminal; The temperature detector and the terminal connection area are arranged at intervals along a first direction so as to electrically isolate the temperature detector from the connection terminal connected to the terminal connection area; The temperature detector is used to detect the temperature of the connection terminal connected to the terminal connection area.

2. The temperature detection device according to claim 1, characterized in that: The temperature detector includes a temperature sensing portion and a signal line electrically connected; The temperature sensing portion and the signal line are arranged along a second direction; and / or the signal line extends along the second direction; The first direction is perpendicular to the second direction.

3. The temperature detection device according to claim 2, characterized in that: In the second direction, the insulating connector has a first surface and a second surface that are arranged opposite to each other; A mounting hole is provided on the second surface, and the mounting hole extends toward the first surface; The temperature sensing portion is located in the mounting hole; In the second direction, one end of the signal line close to the temperature sensing portion is located in the mounting hole, and one end of the signal line away from the temperature sensing portion extends out of the mounting hole from the second surface.

4. The temperature detection device according to claim 3, characterized in that: The temperature detection device further comprises an insulating shielding member, wherein the insulating shielding member is connected to the insulating connecting member; At least a portion of the insulating shield is located between the signal line and the connection terminal connected to the terminal connection area; The insulating shielding member is located between the signal line and the connection terminal connected to the terminal connection area, and protrudes from the signal line along the direction from the first surface to the second surface.

5. The temperature detection device according to claim 4, characterized in that: The insulating shielding member is disposed on the second surface; and / or, The insulating shielding member is an open-loop structure and surrounds the signal line; one axial end of the open-loop structure is connected to the insulating connector, and the other axial end of the open-loop structure protrudes out of the signal line along the direction from the temperature sensing part to the signal line; the opening between the two circumferential ends of the open-loop structure is located on the side of the open-loop structure away from the wiring terminal.

6. The temperature detection device according to claim 3, characterized in that: The inner surface of the insulating connector is provided with a mounting groove, and the mounting groove penetrates to the second surface; wherein the inner surface of the insulating connector is used to enclose the mounting hole; in the second direction, the mounting groove is spaced apart from the bottom surface of the mounting hole; The signal line includes a first connection portion, a second connection portion and a third connection portion connected in sequence; In the first direction, the first connection portion is located between the second connection portion and the connection terminal, and the second connection portion is located between the third connection portion and the connection terminal; In the second direction, the first connection portion is located between the second connection portion and the temperature sensing portion, and the second connection portion is located between the third connection portion and the temperature sensing portion; The first connecting portion is electrically connected to the temperature sensing portion; The second connecting portion is located in the installation groove, and in the second direction, the second connecting portion abuts against a groove wall of the installation groove; The third connecting portion is located in the mounting groove and extends out of the mounting hole.

7. The temperature detection device according to claim 6, characterized in that: A first limiting structure is provided on the groove wall of the installation groove, and a second limiting structure is provided on the signal line; the first limiting structure and the second limiting structure cooperate to limit the position of the signal line in the depth direction of the installation groove; Among them, in the first direction, the mounting hole is located between the mounting slot and the wiring terminal; and / or, the first limiting structure is a limiting slot arranged on at least one of the two slot walls in the width direction of the mounting slot, and the limiting slot extends through the second surface, and the second limiting structure is a limiting block arranged on the third connecting part, and the limiting block is located in the limiting slot.

8. The temperature detection device according to claim 4, characterized in that: The temperature detection device further includes an insulating filler, which is filled in the mounting hole and covers the temperature sensing portion and the signal line.

9. The temperature detection device according to any one of claims 2 to 8, characterized in that: The signal line includes a lead and a pin; the lead is electrically connected to the temperature sensing part and extends along the second direction; in the second direction, the pin is electrically connected to an end of the lead away from the temperature sensing part, and the hardness of the pin is greater than the hardness of the lead; and / or, The temperature detector is provided with two signal lines, and the two signal lines are arranged at intervals along a third direction; the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

10. The temperature detection device according to any one of claims 1 to 8, characterized in that: The terminal connection area is provided with a second clamping structure, and the second clamping structure is used to clamp the connection terminal; The second clamping structure and the insulating connector are arranged in sequence in the first direction.

11. A connector, characterized in that: Comprising a wiring terminal and a temperature detection device according to any one of claims 1 to 10; The wiring terminal is connected to the terminal connection area and is electrically isolated from the temperature detector; The connection terminal is used to electrically connect the solar cell panel and the inverter.

12. The connector according to claim 11, characterized in that: In the second direction, two opposite ends of the connection terminal are used to connect the solar cell panel and the inverter respectively.

13. The connector according to claim 11, characterized in that The wiring terminal and the insulating connector are detachably connected; or, the wiring terminal and the insulating connector are an integral structure.

14. The connector according to claim 11, characterized in that The wiring terminal is provided with a first clamping structure, and the terminal connection area is provided with a second clamping structure; The first clamping structure cooperates with the second clamping structure so that the wiring terminal can be detachably clamped to the insulating connector.

15. The connector according to claim 14, characterized in that: The wiring terminals and the temperature detector are arranged at intervals along a first direction; the wiring terminals and the insulating connectors are arranged in sequence in the first direction; In the first direction, the first clamping structure is arranged on a surface of the connection terminal close to the insulating connector, and the second clamping structure is arranged on a surface of the insulating connector close to the connection terminal.

16. A photovoltaic power generation system, characterized in that: Comprising a solar panel, an inverter and a connector according to any one of claims 11 to 15; The connection terminals are electrically connected to the solar cell panel and the inverter respectively.

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