Wiring device

Abstract

The utility model provides a wiring device, and relates to the technical field of wiring. The wiring device comprises a first cable, a wiring box, a second cable, a crimping assembly and an induction piece. The bottom of the junction box is provided with a plurality of first mounting holes which are distributed at intervals; the first cable is provided with a first wiring end, and the first wiring end is provided with a second mounting hole; the second cable is provided with a second wiring end, and the second wiring end is provided with a third mounting hole; part of the crimping assembly penetrates through the first mounting hole, the second mounting hole and the third mounting hole and is connected with the junction box, the first wiring end and the second wiring end are pressed between the crimping assembly and the bottom of the junction box, and the first cable abuts against the second cable. The sensing piece abuts against the crimping assembly or the sensing piece is arranged close to the crimping assembly at an interval, and the sensing piece is connected with the controller. The sensing part can sense the temperature change of the crimping assembly to send out a sensing signal, so that control equipment or an operator can obtain the sensing signal to timely cut off power, the crimping assembly is prevented from being burnt down, and the safety of the equipment is protected.

Description

Technical Field

[0001] The present application relates to the field of wiring technology, and in particular to a wiring device. Background Art

[0002] In refrigeration compressors, the power and current of the motor are generally large, the operating conditions are relatively harsh, and the vibration conditions are relatively complex. It is easy for the bolts to loosen, resulting in poor contact between the wire nose and the terminal, poor crimping between the terminal nose and the cable, condensation in the terminal box, and corrosion caused by dust. In turn, the terminal will operate at a temperature exceeding the limit. After long-term operation, the accumulated temperature will easily cause the terminal to burn out, seriously affecting the safe operation of the refrigeration equipment. Utility Model Content

[0003] Based on this, it is necessary to provide a wiring device to avoid over-temperature operation and protect the safety of the equipment.

[0004] A wiring device is used to connect the lines in a compressor, the wiring device includes a first cable, a junction box, a second cable, a crimping assembly and an induction member; in the junction box, a plurality of wiring stations arranged at intervals are provided at the bottom of the junction box, and a first mounting hole is constructed at each of the wiring stations; at least part of the first cable is located in the junction box, the first cable has a first wiring terminal, and the first wiring terminal is constructed with a second mounting hole; at least part of the second cable is located in the junction box, the second cable has a second wiring terminal, and the second wiring terminal is constructed with a third mounting hole; part of the crimping assembly is passed through the first mounting hole, the second mounting hole and the third mounting hole and connected to the junction box, the first wiring terminal and the second wiring terminal are pressed between the crimping assembly and the bottom of the junction box, and the first cable abuts against the second cable; the induction member is used to sense the temperature of the crimping assembly, the induction member abuts against the crimping assembly or the induction member is spaced close to the crimping assembly, and the induction member is connected to a controller.

[0005] It is understandable that the junction box provides an installation space for the connection between the second cable and the first cable. Specifically, the first terminal can be crimped and contacted with the second terminal through the crimping assembly to achieve circuit connectivity between the first cable and the second cable. In this process, the power supply of the first cable and the second cable will generate heat, and the heat will be conducted to the crimping assembly. The setting of the sensing element can timely sense the temperature change of the crimping assembly. When the temperature of the crimping assembly is too high, a high-temperature sensing signal can be issued, so that the control equipment or the operator can obtain the sensing signal and cut off the power in time, thereby avoiding the burning of the crimping assembly and protecting the safety of the equipment.

[0006] In one embodiment, the crimping assembly includes a terminal and a crimping cap; the terminal is inserted into the first mounting hole, the second mounting hole and the third mounting hole and is connected to the bottom of the junction box; along the axial direction of the terminal, the crimping cap is sleeved on one end of the terminal away from the bottom of the junction box and is connected to the terminal, and the first terminal and the second terminal are pressed between the crimping cap and the bottom of the junction box.

[0007] It can be understood that the second cable is limited by setting the terminal to pass through the third mounting hole. The terminal is connected to the bottom of the junction box to fix the connection position of the second cable and the first cable, and the first terminal and the second terminal can be pressed tightly by the crimping cap, which is conducive to the current conduction between the first cable and the second cable.

[0008] In one of the embodiments, there is an installation space between the crimping cap and the terminal along the axial direction of the terminal, the sensing element is arranged in the installation space, the sensing element abuts against the terminal, and the lead of the sensing element passes through the crimping cap and is connected to the controller.

[0009] It can be understood that the installation space is arranged to accommodate the sensing element so that the sensing element can directly sense the temperature of the crimping assembly inside the crimping assembly with high accuracy.

[0010] In one of the embodiments, there is an installation space between the crimping cap and the terminal along the axial direction of the terminal, and the wiring device also includes an insulating member. The sensing member and the insulating member are located in the installation space, and the insulating member is located between the sensing member and the terminal, and the insulating member is respectively in contact with the sensing member and the terminal.

[0011] It can be understood that the insulating member is provided to protect the sensing member and prevent the sensing member from conducting electricity with the terminal.

[0012] In one embodiment, the terminal is provided with an external thread, and the crimping cap is provided with an internal thread, and the internal thread of the crimping cap is matched and connected with the external thread of the terminal.

[0013] It can be understood that the threaded connection method is simple to operate and easy to assemble and disassemble.

[0014] In one of the embodiments, the terminal is provided with an external thread; the crimping cap is made of elastic material, and the crimping cap is sleeved on the terminal, and the inner wall of the crimping cap and the external thread of the terminal are compressed and connected under the action of elastic force, and the end face of the crimping cap facing the bottom of the junction box is compressed on the first terminal or the second terminal.

[0015] It can be understood that the crimping cap is made of elastic material and can be deformed under the action of external force, so that it is easy to be installed on the outside of the terminal. At the same time, under the action of elastic force, the inner wall of the crimping cap can be tightly crimped with the external thread of the terminal, and the terminal can now move axially through the external thread of the crimping cap.

[0016] In one of the embodiments, the side wall of the crimping cap is configured to be an arc shape along the radial projection of the crimping cap; along the axis of the crimping cap and along the direction from the crimping cap toward the terminal, the inner diameter of the crimping cap first gradually decreases and then gradually increases, and the minimum inner diameter of the crimping cap is smaller than the outer diameter of the terminal.

[0017] It is understandable that, with such a configuration, the inner diameter of the crimping cap is larger, which facilitates the insertion of the terminal. As the terminal is inserted, the inner diameter of the crimping cap gradually decreases, which facilitates the inner side wall of the crimping cap to be tightly crimped with the terminal under the action of elastic force.

[0018] In one embodiment, the induction element is configured as a thermistor, the wiring device further includes a motor protection module, the thermistor is connected in series in a loop where the motor protection module is located, the motor protection module can receive a resistance signal of the thermistor, and the motor protection module is connected to the controller.

[0019] It can be understood that by setting the thermistor, the temperature change of the crimping assembly is converted into the resistance value change of the thermistor, so as to intuitively reflect the temperature of the crimping assembly, which is conducive to timely power-off protection.

[0020] In one embodiment, the sensing element is configured as a temperature sensor, and the temperature sensor can directly sense a temperature signal of the crimping assembly.

[0021] It can be understood that the temperature sensor can help to intuitively reflect the temperature of the crimping assembly.

[0022] In one of the embodiments, when the sensing element is spaced apart and close to the crimping assembly, the sensing element is disposed on the outer peripheral side of the crimping assembly, and the radial distance between the sensing element and the crimping assembly is no more than 50 mm.

[0023] It is understandable that by arranging the sensing element on the outer peripheral side of the crimping assembly, the temperature of the crimping assembly can also be sensed without interfering with the connection between the first cable and the second cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the structure of the wiring device provided for this application;

[0026] Figure 2 A schematic structural diagram of an embodiment of a crimping assembly in a wiring device provided by the present application;

[0027] Figure 3 This is a schematic structural diagram of another embodiment of a crimping assembly in a wiring device provided in the present application.

[0028] Figure numerals: 100, wiring device; 10, crimping assembly; 101, installation space; 11, terminal; 12, crimping cap; 20, induction member; 201, lead wire; 30, insulating member; 41, first cable; 411, first terminal; 42, second cable; 421, second terminal; 50, junction box; 51, first mounting hole. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0034] See also Figures 1 to 3 The present application provides a wiring device 100, which is used to connect the lines in the compressor. The wiring device 100 includes a first cable 41, a junction box 50, a second cable 42, a crimping assembly 10 and an induction member 20; in the junction box 50, a plurality of wiring stations arranged at intervals are provided at the bottom of the junction box 50, and a first mounting hole 51 is configured at each wiring station; at least a portion of the first cable 41 is located in the junction box 50, the first cable 41 has a first wiring terminal 411, and the first wiring terminal 411 is configured with a second mounting hole, and at least a portion of the second cable 42 is located in the junction box 50. Inside the junction box 50, the second cable 42 has a second terminal 421, and the second terminal 421 is configured with a third mounting hole; part of the crimping assembly 10 is inserted into the first mounting hole 51, the second mounting hole and the third mounting hole and connected to the junction box 50, the first terminal 411 and the second terminal 421 are pressed between the crimping assembly 10 and the bottom of the junction box 50, and the first cable 41 abuts against the second cable 42; the sensing element 20 is used to sense the temperature of the crimping assembly 10, the sensing element 20 abuts against the crimping assembly 10 or the sensing element 20 is spaced close to the crimping assembly 10, and the sensing element 20 is connected to the controller.

[0035] In this way, the wiring inside the terminal box 50 compressor is provided with space, and multiple wiring stations are set up to realize the integration of the lines, which is conducive to the centralized combing and connection of the lines. The first cable 41 in the compressor can be connected to the second cable 42 at the wiring station. Specifically, the crimping assembly 10 passes through the first mounting hole 51, the second mounting hole and the third mounting hole to facilitate the connection between the crimping assembly 10 and the terminal box 50, and can radially limit the first terminal 411 and the second terminal 421, so that the first cable 41 and the second cable 42 are positioned at the wiring station. Furthermore, the crimping assembly 10 can press the second terminal 421 with the first terminal 411, so that the first cable 41 can be connected to the second cable 42 to form current conduction.

[0036] During the process of current conduction, heat will be dissipated at the crimping point between the first terminal 411 and the second terminal 421, and the heat will be directly conducted to the crimping assembly 10. Therefore, by setting the sensing element 20, the surface temperature of the crimping assembly 10 can be sensed, and the sensing signal can be transmitted in real time. In a specific embodiment, the sensing signal of the sensing element 20 is received by the controller, and the working state of the compressor is adjusted according to the sensing signal. When the sensing element 20 transmits a high-temperature signal, the controller can timely adjust the compressor to power off and shut down, so as to avoid high-temperature burning of the crimping assembly 10, avoid line damage, protect the compressor and other related equipment, and help extend the service life.

[0037] like Figure 2 and Figure 3 As shown, in a specific embodiment, the crimping assembly 10 includes a terminal 11 and a crimping cap 12; the terminal 11 is inserted into the first mounting hole 51, the second mounting hole and the third mounting hole and is connected to the bottom of the terminal box 50; along the axial direction of the terminal 11, the crimping cap 12 is sleeved on one end of the terminal 11 away from the bottom of the terminal box 50 and is connected to the terminal 11, and the first terminal 411 and the second terminal 421 are pressed between the crimping cap 12 and the bottom of the terminal box 50.

[0038] In this way, the terminal 11 is connected with the hole wall of the first mounting hole 51, which is easy to operate, and the terminal 11 can limit each other with the hole walls of the second mounting hole and the third mounting hole. Furthermore, the crimping cap 12 increases the operation area by connecting with the terminal 11, which is convenient for applying force to assemble and connect the crimping assembly 10 with the junction box 50. When the terminal 11 is connected to the bottom of the junction box 50, the first terminal 411 and the second terminal 421 can be pressed together by the crimping cap 12, which is easy to assemble. In a specific embodiment, the terminal 11 is threadedly connected to the hole wall of the first mounting hole 51, which is convenient for disassembly and assembly.

[0039] like Figure 2 and Figure 3As shown, in a further embodiment, along the axial direction of the terminal 11, there is an installation space 101 between the crimping cap 12 and the terminal 11, and the sensor 20 is arranged in the installation space 101, the sensor 20 abuts against the terminal 11, and the lead 201 of the sensor 20 passes through the crimping cap 12 and is connected to the controller. In this way, the sensor 20 is installed inside the crimping assembly 10, and the heat at the connection between the first terminal 411 and the second terminal 421 can be directly transferred to the sensor 20 through the terminal 11, which is conducive to the sensor 20 intuitively and accurately reflecting the heat change of the terminal 11.

[0040] like Figure 2 and Figure 3 As shown, in a further embodiment, on the basis that the sensing member 20 is arranged in the installation space 101, the wiring device 100 also includes an insulating member 30, the insulating member 30 is located in the installation space 101, the insulating member 30 is located between the sensing member 20 and the terminal 11, and the insulating member 30 abuts against the sensing member 20 and the terminal 11 respectively. The insulating member 30 can prevent the sensing member 20 and the terminal 11 from forming current conduction to protect the normal operation of the sensing member 20. In a specific embodiment, the insulating member 30 is configured as an insulating gasket, which occupies a small space and is easy to assemble. It should be noted that the insulating member 30 needs to have thermal conductivity and heat resistance to facilitate heat transfer. Exemplarily, the insulating member 30 can be made of high-temperature resistant silicone rubber, high-temperature engineering plastics and other materials.

[0041] In an optional embodiment, the terminal 11 is provided with an external thread, and the crimping cap 12 is provided with an internal thread. The internal thread of the crimping cap 12 is matched and connected with the external thread of the terminal 11, and the disassembly and assembly are simple, so that the induction member 20 between the crimping cap 12 and the terminal 11 can be taken at any time. Exemplarily, the terminal 11 can be made of bolts, and the crimping cap 12 can be made of nuts, and the bolts and nuts are matched. Furthermore, anti-loosening thread glue can be applied to the surface of the internal thread or the external thread to improve the tightness of the threaded connection and prevent the crimping cap 12 from loosening and failing to press the first terminal 411 against the surface of the second terminal 421. In addition, the material of the crimping cap 12 can be selected from high-temperature engineering plastics, ceramics, etc. to meet the requirements of insulation and high temperature resistance.

[0042] In another optional embodiment, the terminal 11 is provided with an external thread; the crimping cap 12 is made of elastic material, that is, the crimping cap 12 can be deformed under external force, and under the action of external force, the crimping cap 12 can be stretched open, thereby realizing that the crimping cap 12 is sleeved on the terminal 11, and the inner wall of the crimping cap 12 and the external thread of the terminal 11 are tightly connected under the action of elastic force. The setting of the external thread of the terminal 11 is conducive to increasing the roughness of the contact with the crimping cap 12 to ensure the tightness of the connection. After the crimping cap 12 is fully matched with the terminal 11, the end face of the crimping cap 12 facing the bottom of the terminal box 50 is pressed against the first terminal 411 or the second terminal 421, so as to tightly match the first terminal 411 with the second terminal 421 to achieve current conduction. In a specific embodiment, the crimping cap 12 can be made of materials such as silicone rubber and high-temperature engineering plastics.

[0043] like Figure 3 As shown, in a further embodiment, the side wall of the crimping cap 12 is set to be an arc shape along the radial projection of the crimping cap 12; along the axis of the crimping cap 12 and along the direction from the crimping cap 12 to the terminal 11, the inner diameter of the crimping cap 12 is first gradually reduced and then gradually increased, and the minimum inner diameter of the crimping cap 12 is smaller than the outer diameter of the terminal 11. In this way, the inner diameter of the cap mouth of the crimping cap 12 is larger, which is convenient for the terminal 11 to be smoothly inserted into the crimping cap 12. Further, the inner side wall of the crimping cap 12 can form a smooth curved surface, which is convenient for the continuous insertion of the terminal 11. As the depth of the terminal 11 becomes deeper, the inner diameter of the crimping cap 12 gradually decreases, which is conducive to the inner side wall of the crimping cap 12 and the outer peripheral wall of the terminal 11 to fit closely, so that the crimping cap 12 is not easy to separate from the terminal 11. At the same time, as the terminal 11 is further assembled, the inner diameter of the crimping cap 12 gradually increases, so that the terminal 11 continues to extend until it abuts against the bottom of the inner cavity of the crimping cap 12, or the sensing part 20 or the insulating part 30 in the crimping cap 12, ensuring the assembly depth of the terminal 11.

[0044] In other embodiments, the sensing element 20 is spaced apart from the crimping assembly 10, and the sensing element 20 is disposed on the outer peripheral side of the crimping assembly 10 to avoid affecting the structure of the crimping assembly 10. Further, the radial distance between the sensing element 20 and the crimping assembly 10 is not greater than 50 mm to ensure the accuracy of the sensing structure. Exemplarily, the distance between the sensing element 20 and the crimping assembly 10 is 10 mm, 25 mm, or 50 mm.

[0045] In a specific embodiment, the induction element 20 is configured as a thermistor, and the wiring device 100 further includes a motor protection module. The thermistor is connected in series in the loop where the motor protection module is located. The motor protection module can receive the resistance signal of the thermistor, and the motor protection module is connected to the controller.

[0046] In this way, the thermistor can convert the temperature at the crimping assembly 10 into a resistance value signal for output. When the crimping assembly 10 generates abnormal heat, the temperature at the crimping assembly 10 continues to rise, and the thermistor will also heat up synchronously. As the temperature rises, the resistance value of the thermistor will also change accordingly. The motor protection module can detect the resistance value signal of the thermistor. Then, the motor protection module feeds back the signal to the controller after processing. When the resistance value detected by the induction element 20 is greater than or equal to the preset resistance value, it indicates that the temperature detected at the crimping assembly 10 is greater than the preset temperature. At this time, the controller controls the compressor to shut down for protection.

[0047] The preset temperature is a reference value set according to the actual temperature at which the first cable 41, the second cable 42 and the crimping assembly 10 are prone to burnout and short circuit, and the deviation of the installation environment of the induction component 20. By comparing the temperature signal detected by the induction component 20 with the reference value of the preset temperature, if the detected temperature is greater than or equal to the preset temperature, the controller stops the compressor, and if the detected temperature is less than the preset temperature, the compressor continues to work. In the embodiment where the induction component 20 is set as a thermistor, the temperature signal is converted into a resistance value signal for adjustment, and the preset resistance value corresponding to the preset temperature is compared with the detected resistance value signal.

[0048] Because there is a deviation between the detected temperature and the actual temperature of the crimping assembly 10, a preset temperature or a preset resistance value corresponding to the preset temperature is set according to different installation environments of the sensing element 20 to improve detection accuracy.

[0049] Further, when the thermistor is installed on the crimping assembly 10, the preset temperature is set between 100°C and 120°C. Exemplarily, the preset temperature is 100°C, 110°C or 120°C.

[0050] When the thermistor is installed on the side of the crimping assembly 10, since the thermistor is a certain distance away from the crimping assembly 10, the sensed temperature is actually lower than the temperature of the surface of the crimping assembly 10. Therefore, the preset temperature is between 70°C and 100°C. Exemplarily, the preset temperature is 70°C, 80°C or 100°C.

[0051] In other embodiments, the sensing element can also be set as a temperature sensor, which can directly sense the temperature signal of the crimping assembly and feed the temperature signal back to the controller. The controller adjusts the operating state of the compressor and can more intuitively feel the temperature changes on the surface of the crimping assembly.

[0052] 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.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A wiring device for wiring a circuit in a compressor, characterized in that: The wiring device comprises: A junction box (50), wherein a plurality of wiring stations arranged at intervals are provided at the bottom of the junction box (50), and each of the wiring stations is provided with a first mounting hole (51); A first cable (41), at least partially located in the junction box (50), the first cable (41) having a first wiring terminal (411), the first wiring terminal (411) being configured with a second mounting hole; A second cable (42), at least partially located in the junction box (50), the second cable (42) having a second wiring terminal (421), the second wiring terminal (421) being configured with a third mounting hole; A crimping assembly (10) is partially inserted into the first mounting hole (51), the second mounting hole and the third mounting hole and connected to the junction box (50); the first wiring terminal (411) and the second wiring terminal (421) are pressed between the crimping assembly (10) and the bottom of the junction box (50); and the first cable (41) and the second cable (42) are in abutment with each other; The sensing element (20) is used to sense the temperature of the crimping assembly (10); the sensing element (20) is in contact with the crimping assembly (10) or the sensing element (20) is spaced apart from the crimping assembly (10); and the sensing element (20) is connected to a controller.

2. The wiring device according to claim 1, characterized in that: The crimping assembly (10) comprises a terminal (11) and a crimping cap (12); The terminal (11) is inserted into the first mounting hole (51), the second mounting hole and the third mounting hole and is connected to the bottom of the terminal box (50); along the axial direction of the terminal (11), the crimping cap (12) is sleeved on one end of the terminal (11) away from the bottom of the terminal box (50) and is connected to the terminal (11); the first terminal (411) and the second terminal (421) are pressed between the crimping cap (12) and the bottom of the terminal box (50).

3. The wiring device according to claim 2, characterized in that: An installation space (101) is provided between the crimping cap (12) and the terminal (11) along the axial direction of the terminal (11), the induction component (20) is arranged in the installation space (101), the induction component (20) is in contact with the terminal (11), and a lead wire (201) of the induction component (20) passes through the crimping cap (12) and is connected to the controller.

4. The wiring device according to claim 2, characterized in that: Along the axial direction of the terminal (11), there is an installation space (101) between the crimping cap (12) and the terminal (11), and the wiring device also includes an insulating member (30). The sensing member (20) and the insulating member (30) are located in the installation space (101), and the insulating member (30) is located between the sensing member (20) and the terminal (11), and the insulating member (30) is respectively in contact with the sensing member (20) and the terminal (11).

5. The wiring device according to any one of claims 2 to 4, characterized in that: The terminal post (11) is provided with an external thread, the crimping cap (12) is provided with an internal thread, and the internal thread of the crimping cap (12) is matched and connected with the external thread of the terminal post (11).

6. The wiring device according to any one of claims 2 to 4, characterized in that: The terminal (11) is provided with an external thread; the crimping cap (12) is made of elastic material, and the crimping cap (12) is sleeved on the terminal (11); the inner wall of the crimping cap (12) and the external thread of the terminal (11) are pressed and connected under the action of elastic force, and the end surface of the crimping cap (12) facing the bottom of the terminal box (50) is pressed against the first terminal (411) or the second terminal (421).

7. The wiring device according to claim 6, characterized in that: The side wall of the crimping cap (12) is arranged to be in an arc shape along the radial projection of the crimping cap (12); along the axis of the crimping cap (12) and along the direction from the crimping cap (12) toward the terminal (11), the inner diameter of the crimping cap (12) is arranged to first gradually decrease and then gradually increase, and the minimum inner diameter of the crimping cap (12) is smaller than the outer diameter of the terminal (11).

8. The wiring device according to any one of claims 1 to 4, characterized in that: The induction element (20) is configured as a thermistor, and the wiring device further comprises a motor protection module, the thermistor is connected in series in a loop where the motor protection module is located, the motor protection module receives a resistance signal of the thermistor, and the motor protection module is connected to the controller.

9. The wiring device according to any one of claims 1 to 4, characterized in that: The sensing element (20) is configured as a temperature sensor, and the temperature sensor is capable of directly sensing a temperature signal of the crimping assembly (10).

10. The wiring device according to claim 1 or 2, characterized in that: When the sensing element (20) is arranged close to the crimping assembly (10) and spaced apart, the sensing element (20) is arranged on the outer peripheral side of the crimping assembly (10), and the radial distance between the sensing element (20) and the crimping assembly (10) is not greater than 50 mm.

Images