Capacitor and measuring method thereof

Abstract

The invention relates to a capacitor and a measuring method thereof, and relates to the technical field of capacitors, the capacitor comprises a capacitor body, a welding base and an explosion-proof sleeve, the explosion-proof sleeve sleeves the outer side of the capacitor body, and one end of the explosion-proof sleeve is detachably connected with the welding base; two electric conductors are arranged in the welding base at intervals, one end of the capacitor body abuts against the two electric conductors, and the positive electrode and the negative electrode of the capacitor body abut against the corresponding electric conductors respectively; and two pins are arranged on the welding base, are in one-to-one correspondence with the conductors, and are connected with the corresponding conductors. According to the invention, the capacitor body can be conveniently and rapidly replaced, so that the maintenance efficiency of the capacitor when a fault occurs is improved, and the time required for circuit recovery work is effectively shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitors, in particular to a capacitor and a measurement method thereof. BACKGROUND

[0002] A capacitor, also known as a condenser, is an element for storing electric quantity and electric energy. The capacitor plays an important role in tuning, bypassing, coupling, filtering and other circuits, thereby driving the rapid growth of the capacitor industry with the increasing speed of the replacement of digital electronic products.

[0003] At present, a common capacitor mainly includes a capacitor body and two pins arranged at the bottom of the capacitor body. When the capacitor is used, the two pins are welded to a circuit board, so that the capacitor body is connected to a corresponding circuit. At this time, the capacitor can realize the corresponding function.

[0004] For the related technology in the above, in the existing circuit, when the circuit is abnormal, for example, when there is an overvoltage impact or the capacitor is internally broken down, the capacitor is often damaged at this time, and even some capacitors will explode, which requires replacing a new capacitor in time to restore the normal work of the circuit. However, the existing capacitor is fixed to the circuit board by welding, so replacing the capacitor requires a long time and needs a professional tool, which leads to a long time for replacing the capacitor. SUMMARY

[0005] The present application provides a capacitor and a measurement method thereof, which aims to improve the convenience of replacing the capacitor, thereby facilitating the rapid recovery of the circuit.

[0006] In a first aspect, the present application provides a capacitor adopting the following technical solution: A capacitor includes a capacitor body, a welding base and an explosion-proof sleeve. The explosion-proof sleeve is sleeved outside the capacitor body, and one end of the explosion-proof sleeve is detachably connected with the welding base. Two conductive bodies are arranged in the welding base, and the two conductive bodies are arranged at intervals. One end of the capacitor body is in contact with the two conductive bodies, and the positive and negative electrodes of the capacitor body are respectively in contact with the corresponding conductive bodies. Two pins are arranged on the welding base, the pins are arranged one by one corresponding to the conductive bodies, and the pins are connected with the corresponding conductive bodies.

[0007] By adopting the technical scheme, the capacitor body and the welding base jointly constitute the basic structure of the capacitor, wherein the capacitor body is used for storing electric charge, two conductive bodies in the welding base are respectively in contact with the positive and negative poles of the capacitor body to realize input and output of electric energy, two pins on the welding base are respectively connected with the corresponding conductive bodies to fix the capacitor on the circuit board and connect the capacitor into the circuit, so that the capacitor body can be connected into the circuit and the basic function of the capacitor can be realized.

[0008] On this basis, the explosion-proof sleeve is sleeved outside the capacitor body, the explosion-proof sleeve is detachably connected with the welding base, and after the explosion-proof sleeve is connected with the welding base, the capacitor body is in abutment with the welding base, thereby realizing fixation and installation of the capacitor body and the welding base, so that the capacitor body can be replaced by detaching the explosion-proof sleeve, and the capacitor can be quickly restored to normal. Therefore, such design can effectively improve the convenience of capacitor replacement, so that the circuit can be quickly restored to work.

[0009] In addition, the explosion-proof sleeve can also protect the capacitor body and prevent explosion when the capacitor body explodes, thereby improving the safety of the capacitor.

[0010] Optionally, the explosion-proof sleeve comprises a through pipe, the through pipe is coaxially sleeved outside the capacitor body, and an inner side wall of the through pipe is spaced apart from the capacitor body; one end of the through pipe is detachably connected with the welding base, and the other end is coaxially connected with an abutment plate, and one end of the capacitor body is in abutment with the abutment plate.

[0011] By adopting the technical scheme, the explosion-proof sleeve is provided with the through pipe, the through pipe is coaxially sleeved outside the capacitor body, and the inner side wall of the through pipe is spaced apart from the capacitor body, so that the through pipe can be sleeved outside the capacitor body of different sizes.

[0012] Meanwhile, one end of the through pipe is detachably connected with the welding base, and the other end is coaxially connected with the abutment plate, and one end of the capacitor body is in abutment with the abutment plate, so that when the capacitor body is installed, the capacitor body is placed on the welding base, and then the through pipe is sleeved, at this time, with the connection of the through pipe and the welding base, the abutment plate abuts against the capacitor body, thereby realizing installation and fixation of the capacitor body.

[0013] Such design improves the convenience of installation of the explosion-proof sleeve, and makes the explosion-proof sleeve of the application adaptable to capacitor bodies of different sizes, so that capacitor bodies of different models can be replaced in the capacitor of the application, thereby improving the applicability of the capacitor.

[0014] Optionally, the through pipe is screwed with the welding base, and the abutment plate is rotationally connected with the through pipe.

[0015] By adopting the technical scheme, the threaded connection of the through pipe and the welded base makes the explosion-proof sleeve convenient to install and dismount, and facilitates replacement of the capacitor body.

[0016] The design of the rotation connection between the abutting plate and the through pipe ensures that the abutting plate gradually abuts against the end of the capacitor body by rotating the through pipe when the explosion-proof sleeve is installed, thereby ensuring that the capacitor body is stably fixed on the welded base, which enhances the installation stability of the capacitor body.

[0017] Optionally, the welded base is provided with a plug-in slot, and one end of the capacitor body is in plug-in cooperation with the welded base.

[0018] By adopting the technical scheme, the plug-in slot enables the capacitor body to be quickly plugged in with the welded base, thereby improving the stability and convenience of the capacitor body installation.

[0019] Optionally, the welded base is provided with a plurality of clamping blocks, the plurality of clamping blocks are sequentially and spacedly arranged along the circumference of the capacitor body, the plurality of clamping blocks are arranged in a ring shape, the plug-in slot is formed between the plurality of clamping blocks, and the clamping blocks are slidably connected to the welded base along the corresponding radial direction of the capacitor body; the welded base is further provided with an elastic ring, the elastic ring is coaxially arranged with the capacitor body, the plurality of clamping blocks are located in the elastic ring, and the plurality of clamping blocks are connected with the elastic ring.

[0020] By adopting the technical scheme, the plurality of clamping blocks arranged on the welded base are sequentially and spacedly arranged along the circumference of the capacitor body to form the plug-in slot, and the clamping blocks can slide along the radial direction of the capacitor body, so that when the capacitor body is inserted into the plug-in slot, the clamping blocks slide outward to facilitate the insertion of the capacitor body, and after the capacitor body is completely inserted into the plug-in slot, the plurality of clamping blocks are automatically reset and clamped to the capacitor body under the action of the elastic ring, which improves the stability of the connection between the capacitor body and the welded base.

[0021] The arrangement of the elastic ring further enhances the clamping force of the clamping blocks on the capacitor body and improves the reliability of the connection.

[0022] Optionally, two detection holes are formed in the side wall of the welded base, the detection holes are arranged one by one corresponding to the conductive bodies, and the detection holes penetrate the corresponding conductive bodies; two detection columns are arranged on the side wall of the welded base, the detection columns are arranged one by one corresponding to the detection holes, and the detection holes are in plug-in cooperation with the corresponding detection columns.

[0023] By adopting the technical scheme, the arrangement of the detection holes and the detection columns enables the capacitor to be detected after being welded to the circuit board, improving the convenience of detection. The plug-in cooperation between the detection column and the detection hole enables the detection column to be stored when not in use, avoiding miscontact with other electronic components, and improving the safety of the capacitor.

[0024] Optionally, the capacitor body, the welding base and the explosion-proof sleeve are provided with a plurality of, and the capacitor body, the welding base and the explosion-proof sleeve are provided one by one, and the plurality of welding bases are connected in sequence; the welding base is provided with a connecting electrode piece on the opposite two side walls, and the conductive body is connected with the connecting electrode piece; the connecting electrode piece on the welding base is in contact with the corresponding connecting electrode piece on the adjacent another welding base.

[0025] By adopting the above technical scheme, the cooperation of the plurality of capacitor bodies, the plurality of welding bases and the plurality of explosion-proof sleeves enables each capacitor body to be independently installed on the corresponding welding base.

[0026] Since the welding base is provided with a connecting electrode piece, and the connecting electrode piece is connected with the conductive body, when the plurality of welding bases are connected in sequence, the connecting electrode pieces on the adjacent welding bases are in contact with each other, which can establish electrical connection between the adjacent two capacitor bodies, so that all the capacitor bodies in the capacitor are connected in sequence.

[0027] Such design can flexibly adjust the maximum capacity of the capacitor by increasing or decreasing the number of welding bases, so that the capacitor can adapt to different circuit requirements.

[0028] Optionally, the connecting electrode piece and the conductive body are provided one by one, and the connecting electrode piece is connected with the corresponding conductive body.

[0029] By adopting the above technical scheme, the connecting electrode piece and the conductive body are connected one by one, so that when a plurality of welding bases are connected in sequence, the negative electrode of the capacitor body is connected with the positive electrode of the adjacent another capacitor body, so that the adjacent two capacitor bodies are connected in series, and all the capacitor bodies in the capacitor are connected in series.

[0030] This design not only improves the scalability of the capacitor, but also facilitates flexible adjustment of the capacitance value according to actual circuit requirements, and improves the applicability of the capacitor in different application scenarios.

[0031] Optionally, the connecting electrode piece includes an intermediate insulating layer and two split conductive pieces, the two split conductive pieces are spaced apart, the intermediate insulating layer is located between the two split conductive pieces, and the two split conductive pieces are connected with the intermediate insulating layer; the split conductive piece and the conductive body are provided one by one, and the split conductive piece is connected with the corresponding conductive body.

[0032] By adopting the above technical scheme, the connecting electrode piece is connected with the two conductive bodies through the two split conductive pieces, so that the two split conductive pieces are connected with the positive electrode and the negative electrode of the capacitor body respectively, and the intermediate insulating layer ensures the electrical isolation between the two split conductive pieces.

[0033] When the plurality of welding bases are connected in sequence, the connecting electrode piece on the connecting capacitor body positive electrode of the connecting electrode piece can be in contact with the connecting capacitor body positive electrode of the connecting electrode piece on the adjacent other connecting electrode piece due to the contact between the connecting electrode pieces of the adjacent two welding bases, and the connecting electrode piece on the connecting capacitor body negative electrode of the connecting electrode piece can be in contact with the connecting capacitor body negative electrode of the connecting electrode piece on the adjacent other connecting electrode piece, so that the parallel connection between the adjacent two capacitor bodies can be realized, and all the capacitor bodies in the capacitor are in parallel.

[0034] The structure not only simplifies the assembly process of the capacitor, but also improves the stability and reliability of the capacitor in the parallel state, and facilitates flexible adjustment of the capacity of the capacitor according to actual needs.

[0035] In a second aspect, the application provides a measurement method of a capacitor, which adopts the following technical scheme: A measurement method of a capacitor for measuring the capacitor described above, comprising the following steps: S1, integrating a charging circuit and a discharging circuit on a circuit board, and welding the capacitor to the circuit board, so that the capacitor is connected to the charging circuit, the discharging circuit and the working circuit at the same time; S2, cutting off the working circuit, and connecting a multimeter to two pins on the welding base; S3, connecting the capacitor to the corresponding charging circuit, and detecting the voltage of the capacitor by the multimeter until the voltage of the capacitor reaches a set voltage, and disconnecting the charging circuit; S4, after the charging is completed, connecting the capacitor to the discharging circuit for discharging, and detecting the voltage and current of the capacitor by the multimeter until the voltage of the capacitor decreases to a preset voltage, and disconnecting the discharging circuit; S5, calculating the capacity and internal resistance of the capacitor according to the collected voltage and current.

[0036] By adopting the above technical scheme, the measurement method can efficiently and safely measure the capacity and internal resistance of the capacitor. The specific effects are as follows: by pre-integrating the charging circuit and the discharging circuit on the circuit board, the capacitor can be measured in situ without additional disassembly, improving the convenience of measurement. By using the charging and discharging characteristics of the capacitor and the law of conservation of charge, combined with the dynamic monitoring of voltage and current, the capacity and internal resistance of the capacitor can be accurately calculated. In the charging stage, the capacitor is charged at a constant voltage and the voltage change is monitored in real time to ensure the stability and reliability of the charging process. In the discharging stage, the voltage and current change curves during the discharging process are recorded, and the total discharge amount is accurately calculated by using the RC exponential decay law. Finally, based on the collected data, the capacity and internal resistance of the capacitor are calculated by physical formula, and the state of the capacitor is comprehensively evaluated.

[0037] To sum up, the present application includes at least one of the following beneficial technical effects: 1. The present application is designed by the cooperation of the capacitor body, the welding base and the explosion-proof sleeve. The welding base is welded with the circuit board, the explosion-proof sleeve installs the capacitor body on the welding base, and the explosion-proof sleeve and the welding base are detachably connected. This facilitates quick replacement of the capacitor body, which can improve the maintenance efficiency of the capacitor when it fails, effectively shortening the time required for circuit recovery.

[0038] 2. The present application is designed by the cooperation of the capacitor body, the welding base and the explosion-proof sleeve. The welding base is welded with the circuit board, the explosion-proof sleeve installs the capacitor body on the welding base, and the explosion-proof sleeve and the welding base are detachably connected. This facilitates quick replacement of the capacitor body, which can improve the maintenance efficiency of the capacitor when it fails, effectively shortening the time required for circuit recovery.

[0039] 3. The present application is designed by the cooperation of the capacitor body, the welding base and the explosion-proof sleeve. The welding base is welded with the circuit board, the explosion-proof sleeve installs the capacitor body on the welding base, and the explosion-proof sleeve and the welding base are detachably connected. This facilitates quick replacement of the capacitor body, which can improve the maintenance efficiency of the capacitor when it fails, effectively shortening the time required for circuit recovery.

[0040] 4. The present application is designed by the cooperation of the capacitor body, the welding base and the explosion-proof sleeve. The welding base is welded with the circuit board, the explosion-proof sleeve installs the capacitor body on the welding base, and the explosion-proof sleeve and the welding base are detachably connected. This facilitates quick replacement of the capacitor body, which can improve the maintenance efficiency of the capacitor when it fails, effectively shortening the time required for circuit recovery.

[0041] 5. The present application is designed by the cooperation of the capacitor body, the welding base and the explosion-proof sleeve. The welding base is welded with the circuit board, the explosion-proof sleeve installs the capacitor body on the welding base, and the explosion-proof sleeve and the welding base are detachably connected. This facilitates quick replacement of the capacitor body, which can improve the maintenance efficiency of the capacitor when it fails, effectively shortening the time required for circuit recovery. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is the overall structure schematic diagram of the capacitor of the embodiment 1 of the present application.

[0043] Figure 2 is the cross-sectional structure schematic diagram of the capacitor of the embodiment 1 of the present application.

[0044] Figure 3 is the explosion structure schematic diagram of the capacitor of the embodiment 1 of the present application.

[0045] Figure 4 is Figure 3 the local amplification structure schematic diagram of part A in the present application.

[0046] Figure 5 is the overall structure schematic diagram of the capacitor of the embodiment 2 of the present application.

[0047] Figure 6 is the cross-sectional structure schematic diagram of the capacitor of the embodiment 2 of the present application.

[0048] Figure 7 is the overall structure schematic diagram of the single capacitor body, the explosion-proof sleeve and the welding base of the embodiment 3 of the present application.

[0049] Figure 8 is a sectional structure schematic view of the welding base of the embodiment 3 of the application.

[0050] Figure 9 is a whole structure schematic view of the capacitor of the embodiment 3 of the application.

[0051] In the figure, 1, capacitor body; 2, welding base; 21, conductive body; 22, pin; 23, connecting table; 24, detection hole; 25, detection column; 26, first expansion slot; 27, resistance spring; 28, second expansion slot; 29, reset spring; 3, explosion-proof sleeve; 31, through pipe; 32, resistance plate; 4, clamping assembly; 41, clamping block; 411, lead-in slope; 42, plug-in slot; 43, elastic ring; 5, connecting electrode sheet; 51, series electrode sheet; 52, parallel electrode sheet; 521, middle insulating layer; 522, branch electrode sheet; 6, connecting assembly; 61, connecting rod; 62, connecting slot; 7, strong connecting assembly; 71, strong connecting plate; 72, fixing bolt. DETAILED DESCRIPTION

[0052] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 9 The application will be further described in detail.

[0053] Embodiment 1: a capacitor, referring to Figure 1 and Figure 2 , comprising a capacitor body 1, a welding base 2 and an explosion-proof sleeve 3, the capacitor body 1 is arranged in the vertical direction in the axial direction, the explosion-proof sleeve 3 is coaxially sleeved outside the capacitor body 1, the welding base 2 is located at the lower end of the explosion-proof sleeve 3, and the lower end of the explosion-proof sleeve 3 is detachably connected with the welding base 2, and the lower end of the capacitor body 1 is in contact with the upper end surface of the welding base 2. Two conductive bodies 21 are arranged in the welding base 2, the two conductive bodies 21 are arranged in the horizontal direction and are spaced apart, and the upper ends of the two conductive bodies 21 are respectively in contact with the positive and negative electrodes of the capacitor body 1, and two pins 22 are further arranged at the lower end of the welding base 2, the pins 22 are arranged one by one corresponding to the conductive bodies 21, and the pins 22 are connected with the corresponding conductive bodies 21.

[0054] In use of the capacitor, the pins 22 of the welding base 2 are welded with the circuit board, so as to fix the welding base 2 to the circuit board, after the explosion-proof sleeve 3 is installed on the welding base 2, at this time the capacitor body 1 is in contact with the two conductive bodies 21, which can connect the capacitor body 1 into the corresponding circuit of the circuit board; and after the explosion-proof sleeve 3 is detached from the welding base 2, at this time the capacitor body 1 is released from the constraint of the explosion-proof sleeve 3, and the capacitor body 1 can be detached from the welding base 2, which facilitates replacement of the new capacitor body 1. At the same time, the arrangement of the explosion-proof sleeve 3 can prevent the explosion of the capacitor body 1 from affecting the circuit board or other electronic components, so as to make the capacitor have the explosion-proof function.

[0055] With reference to Figure 1 and Figure 2 , the explosion-proof sleeve 3 comprises a through pipe 31 coaxially sleeved on the capacitor body 1, and the inner side wall of the through pipe 31 is arranged in a spaced manner with the outer side wall of the capacitor body 1. The through pipe 31 is provided with an abutting plate 32 at the upper end thereof, the abutting plate 32 is coaxially arranged with the through pipe 31, and the abutting plate 32 is rotationally connected with the through pipe 31.

[0056] With reference to Figure 2 and Figure 3 , the welding base 2 is provided with a connecting table 23 fixedly connected with the welding base 2. The electrically conductive body 21 is located in the connecting table 23 and the welding base 2, and the upper end of the electrically conductive body 21 extends to the upper end surface of the protruding connecting table 23. The through pipe 31 is coaxially arranged with the connecting table 23, the lower end of the through pipe 31 is sleeved to the outer side of the connecting table 23, and the through pipe 31 is connected with the connecting table 23 by screwing.

[0057] With reference to Figure 2 , the capacitor body 1 is located between the abutting plate 32 and the connecting table 23 along the axis of the capacitor body 1, and the upper end of the capacitor body 1 abuts against the abutting plate 32, and the lower end of the capacitor body 1 abuts against the connecting table 23.

[0058] With reference to Figure 2 , based on the structure of the explosion-proof sleeve 3, after the capacitor body 1 is erected on the connecting table 23, the explosion-proof sleeve 3 is sleeved on the connecting table 23, and then the explosion-proof sleeve 3 is rotated. At this time, the abutting plate 32 can gradually abut against the upper end of the capacitor body 1, and the lower end of the capacitor body 1 abuts against the connecting table 23, and at this time, the positive contact and the negative contact at the lower end of the capacitor body 1 abut against the corresponding electrically conductive body 21, which can realize the fixation of the capacitor body 1. In addition, such a structure design can adapt to capacitor bodies 1 of different sizes, so that the welding base 2 and the explosion-proof sleeve 3 of the present application can adapt to capacitor bodies 1 of different sizes, which can improve the applicability of the capacitor of the present application.

[0059] In this embodiment, with reference to Figure 3 and Figure 4 , the connecting table 23 is provided with a clamping assembly 4 at the upper end thereof. The clamping assembly 4 comprises a plurality of clamping blocks 41 arranged in a spaced manner along the circumference of the capacitor body 1. The plurality of clamping blocks 41 are arranged in a ring shape, and the plurality of clamping blocks 41 form an insertion slot 42 therebetween. The lower end of the capacitor body 1 is inserted and matched with the insertion slot 42.

[0060] With reference to Figure 3 and Figure 4The clamping assembly 4 further comprises an elastic ring 43 coaxially arranged with the capacitor body 1, and the plurality of clamping blocks 41 are located in the elastic ring 43, and the outer sidewall of each clamping block 41 is connected with the inner sidewall of the elastic ring 43, and the clamping block 41 is slidingly connected with the connecting table 23 along the corresponding radial direction of the capacitor body 1.

[0061] With reference to Figure 3 and Figure 4 An introduction inclined surface 411 is arranged on the upper side of the clamping block 41, and the introduction inclined surface 411 is arranged to extend downwardly and obliquely on the side close to the central axis of the capacitor body 1.

[0062] With reference to Figure 3 and Figure 4 Based on the arrangement of the clamping block 41, the introduction inclined surface 411 on the clamping block 41 and the elastic ring 43, when the capacitor body 1 is vertically inserted into the insertion slot 42, the capacitor body 1 first abuts against the introduction inclined surface 411, so that under the action of the introduction inclined surface 411, the clamping block 41 moves away from the central axis of the capacitor body 1 until the capacitor body 1 is separated from the introduction inclined surface 411, and then the clamping block 41 abuts against the sidewall of the capacitor body 1, and the lower end of the capacitor body 1 can abut against the connecting table 23, so that the capacitor body 1 abuts against the upper ends of the two conductive bodies 21.

[0063] Under the action of the elastic ring 43, the elastic ring 43 provides the clamping block 41 with a restoring force, so that the clamping block 41 abuts tightly against the sidewall of the capacitor body 1, which can improve the stability of the connection between the lower end of the capacitor body 1 and the connecting table 23.

[0064] The implementation principle of the embodiment is that when the capacitor is used, the welding base 2 is welded to the circuit board, then the capacitor body 1 is vertically inserted into the insertion slot 42, and then the explosion-proof sleeve 3 is sleeved to the outside of the capacitor body 1 and is installed on the welding base 2, so that the capacitor can be connected to the corresponding circuit on the circuit board.

[0065] After the capacitor body 1 is damaged or exploded, the explosion-proof sleeve 3 is removed, the damaged capacitor body 1 is taken out of the insertion slot 42, and then a new capacitor body 1 is inserted into the insertion slot 42, and the explosion-proof sleeve 3 is reinstalled, so that the capacitor body 1 can be quickly replaced, and the capacitor can quickly resume work.

[0066] The embodiment further discloses a measurement method of the capacitor, comprising the following steps: S1, integrating a charging circuit and a discharging circuit on the circuit board, and welding the capacitor to the circuit board, so that the capacitor is connected to the charging circuit, the discharging circuit and the working circuit.

[0067] S2, cutting off the working circuit, and connecting the two pins 22 on the welding base 2 with a multimeter.

[0068] S3, connect the capacitor to the corresponding charging circuit, and detect the voltage of the capacitor by using the multimeter until the voltage of the capacitor reaches the set voltage, and disconnect the charging circuit.

[0069] S4, after the charging is completed, connect the capacitor to the discharging circuit for discharging, and detect the voltage and current of the capacitor by using the multimeter until the voltage of the capacitor decreases to the preset voltage, and disconnect the discharging circuit.

[0070] S5, calculate the capacity and internal resistance of the capacitor according to the collected voltage and current.

[0071] The implementation principle of the embodiment is that: the measurement method is based on the charging and discharging characteristics of the capacitor and the law of conservation of charge, and realizes the accurate measurement of the capacity and internal resistance of the capacitor through the dynamic monitoring and data calculation of voltage and current. And by integrating the charging circuit and the discharging circuit on the circuit board in advance, the capacitor can be directly detected on the corresponding circuit board, which can directly detect the parameters of the capacitor to detect the state of the capacitor.

[0072] The specific principle is as follows: Charging stage: after connecting the capacitor to the charging circuit, the capacitor is charged at a constant voltage, and the multimeter monitors the voltage across the capacitor in real time until the set value (such as the rated voltage) is reached. This process utilizes the charge accumulation characteristics of the capacitor, and the voltage increases exponentially with the charging time.

[0073] Discharging stage: after the charging is completed, the capacitor is switched to the discharging circuit (including a discharging resistor with a known resistance value), and the multimeter synchronously monitors the voltage and current changes during the discharging process. During discharging, the capacitor releases the charge through the discharging resistor, and its voltage and current decrease to a preset threshold according to the RC exponential decay law with time. The total discharge charge can be calculated by integrating or piecewise accumulating the product of the discharging current and time.

[0074] Parameter calculation: based on the law of conservation of charge, the total discharge charge is equal to the charge stored in the charging stage, and the capacitor capacity can be obtained by combining the voltage change. The equivalent series internal resistance of the capacitor is determined by the ratio of the voltage drop at the initial discharging time and the current.

[0075] The measurement method realizes efficient and safe measurement of capacitor parameters through dynamic monitoring of the charging and discharging process and physical laws.

[0076] Embodiment 2: A capacitor, referring to Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that detection holes 24 are formed on the opposite two side walls of the welded base 2, the detection holes 24 are arranged one by one corresponding to the conductive bodies 21, and the detection holes 24 penetrate through the corresponding conductive bodies 21.

[0077] Referring to Figure 5 andFigure 6 The welding base 2 is further provided with detection columns 25 on the opposite two side walls, the detection columns 25 are provided in one-to-one correspondence with the detection holes 24, the detection columns 25 are inserted and matched with the corresponding detection holes 24, and the detection columns 25 are inserted into the corresponding conductive bodies 21.

[0078] When the capacitor needs to be detected, the multimeter is contacted with the two detection columns 25, at this time, the capacitor body 1 can be detected. Such a structure is arranged so that after the capacitor is welded to the circuit board, the capacitor can still be detected, which can improve the convenience of detecting the capacitor.

[0079] Referring to Figure 5 and Figure 6 In the embodiment, the detection columns 25 are slidingly connected with the inner side walls of the corresponding detection holes 24 along the axial direction of the detection columns 25. Such a design enables the detection columns 25 to be pulled out of the corresponding detection holes 24 when the capacitor needs to be detected, so as to realize detection; and when the capacitor is working normally, the detection columns 25 can be pushed into the corresponding detection holes 24, so as to prevent the detection columns 25 from being connected with other electronic components, thereby improving the safety of the entire circuit.

[0080] The implementation principle of the embodiment is that when the capacitor needs to be detected, the two detection columns 25 are pulled out of the corresponding detection holes 24, at this time, the capacitor body 1 in the capacitor can be detected by contacting the two detection columns 25 with the corresponding multimeter, which can realize the detection work of the capacitor.

[0081] After the detection of the capacitor is completed, the detection columns 25 are pushed into the corresponding detection holes 24, at this time, one end of the detection column 25 is slightly protruded from the side surface of the welding base 2, which can effectively prevent the detection column 25 from being connected with other electronic components, thereby improving the safety of the circuit.

[0082] Embodiment 3: A capacitor, referring to Figure 7 The difference between the embodiment and the embodiment 1 is that the welding base 2 is provided with four connecting electrode sheets 5, and the four connecting electrode sheets 5 are arranged on the four outer side walls of the welding base 2.

[0083] In the embodiment, referring to Figure 7 and Figure 8 The connecting electrode sheets 5 are divided into series electrode sheets 51 and parallel electrode sheets 52, two of the four connecting electrode sheets 5 are series electrode sheets 51 and the other two are parallel electrode sheets 52. Moreover, the two series electrode sheets 51 are arranged on the opposite two side walls of the welding base 2, and the two parallel electrode sheets 52 are arranged on the opposite two side walls of the welding base 2.

[0084] Referring to Figure 8The interval direction of the two series electrode pieces 51 is arranged along the interval direction of the two conductive bodies 21, the series electrode piece 51 is arranged in one-to-one correspondence with the conductive body 21, and the series electrode piece 51 is connected with the corresponding conductive body 21.

[0085] With reference to Figure 8 In the embodiment, the welding base 2 is provided with a first expansion slot 26 on each of the two side walls, the first expansion slot 26 is arranged in one-to-one correspondence with the conductive body 21, and the first expansion slot 26 is arranged along the depth direction of the first expansion slot 26 to the corresponding conductive body 21. The series electrode piece 51 is arranged in one-to-one correspondence with the first expansion slot 26, the series electrode piece 51 is inserted and matched with the corresponding first expansion slot 26, and the series electrode piece 51 is slidably connected with the inner side wall of the corresponding first expansion slot 26 along the depth direction of the corresponding first expansion slot 26. The series electrode piece 51 and the bottom of the corresponding first expansion slot 26 are provided with a contact spring 27, the contact spring 27 is arranged along the depth direction of the corresponding first expansion slot 26, one end of the contact spring 27 is connected with the corresponding series electrode piece 51, and the other end of the contact spring 27 is connected with the bottom of the corresponding first expansion slot 26.

[0086] The series electrode piece 51 is arranged, and the series electrode piece 51 can be connected in series with the conductive body 21 in the welding base 2, which facilitates the series connection of the plurality of welding bases 2, and facilitates the series connection of the plurality of capacitor bodies 1.

[0087] With reference to Figure 8 The interval direction of the two parallel electrode pieces 52 is perpendicular to the interval direction of the two series electrode pieces 51, and each parallel electrode piece 52 is connected with the two conductive bodies 21.

[0088] With reference to Figure 7 and Figure 8 In the embodiment, the welding base 2 is provided with a second expansion slot 28 on each of the two side walls, and the second expansion slot 28 is arranged along the depth direction of the second expansion slot 28 to the two conductive bodies 21. The parallel electrode piece 52 is arranged in one-to-one correspondence with the second expansion slot 28, and the parallel electrode piece 52 is inserted and matched with the corresponding second expansion slot 28, and the parallel electrode piece 52 is slidably connected with the inner side wall of the corresponding second expansion slot 28 along the depth direction of the corresponding second expansion slot 28.

[0089] Such design makes the parallel electrode piece 52 slidably connected with the two conductive bodies 21 at the same time, so that the parallel electrode piece 52 can be connected with the positive and negative electrodes of the capacitor body 1 at the same time.

[0090] With reference to Figure 7 and Figure 8In the embodiment, the parallel electrode sheet 52 includes an intermediate insulating layer 521 and two sub-conducting sheets 522, the two sub-conducting sheets 522 are arranged in a spaced manner, and the spacing direction of the two sub-conducting sheets 522 is arranged along the spacing direction of the two conductive bodies 21, the intermediate insulating layer 521 is located between the two sub-conducting sheets 522, and the two sub-conducting sheets 522 are connected with the intermediate insulating layer 521.

[0091] Referring to Figure 7 and Figure 8 , the sub-conducting sheet 522 is arranged in one-to-one correspondence with the conductive body 21, the sub-conducting sheet 522 is slidably connected with the inner side wall of the second expansion slot 28 along the depth direction of the second expansion slot 28, the sub-conducting sheet 522 is slidably connected with the corresponding conductive body 21, and a reset spring 29 is arranged between each sub-conducting sheet 522 and the slot bottom of the second expansion slot 28.

[0092] Referring to Figure 7 and Figure 8 , based on the structural design of the parallel electrode sheet 52, the two sub-conducting sheets 522 are connected with the positive and negative electrodes of the capacitor body 1 respectively.

[0093] The arrangement of the parallel electrode sheet 52 can be connected with the two conductive bodies 21 in the welding base 2 in parallel, which facilitates the parallel connection of a plurality of welding bases 2, and facilitates the parallel connection of a plurality of capacitor bodies 1.

[0094] Referring to Figure 9 , in the embodiment, a plurality of welding bases 2 are arranged, each welding base 2 is connected with at least one welding base 2, the adjacent two welding bases 2 are detachably connected, and the capacitor body 1 and the explosion-proof sleeve 3 are arranged on each welding base 2.

[0095] Referring to Figure 8 and Figure 9 , when a plurality of welding bases 2 are connected in sequence along the spacing direction of the two conductive bodies 21 in the welding base 2, the series electrode sheet 51 on the welding base 2 is in contact with the corresponding series electrode sheet 51 on the adjacent other welding base 2.

[0096] Based on the structural arrangement between the series electrode sheet 51 and the welding base 2, after a plurality of welding bases 2 are connected, the series electrode sheet 51 on the welding base 2 is in contact with the corresponding series electrode sheet 51 on the adjacent other welding base 2, which can realize the electrical connection between the adjacent two welding bases 2, and further realize the series connection of a plurality of welding bases 2, and can realize the series connection of a plurality of capacitor bodies 1, and can increase the expandability of the capacitor.

[0097] Referring to Figure 8 and Figure 9The series electrode sheet 51 on the welding base 2 is in contact with the corresponding series electrode sheet 51 on the adjacent other welding base 2 under the action force of the conflict spring 27, which can improve the stability of the electrical connection between the adjacent two welding bases 2.

[0098] Based on such a design, by increasing or decreasing the welding bases 2 and the corresponding number of capacitor bodies 1, the capacitor parameters can be changed, so that the capacitor of the application can adapt to different circuit requirements, so that the capacitor can be connected to different circuits, which can improve the applicability of the capacitor of the application. Moreover, according to the different pins 22 of the capacitor welded on the circuit board, any number and position of the capacitor bodies 1 in the capacitor can be selected to be connected to the circuit, which makes the remaining unused capacitor bodies 1 can be used as a backup for the used capacitor bodies 1, and further facilitates the timely replacement of damaged capacitor bodies 1.

[0099] Referring to Figure 8 and Figure 9 When there are a plurality of welding bases 2 connected in sequence along the direction perpendicular to the interval of the two conductive bodies 21 in the welding base 2, the parallel electrode sheet 52 on the welding base 2 is in contact with the corresponding parallel electrode sheet 52 on the adjacent other welding base 2.

[0100] Referring to Figure 8 and Figure 9 When the parallel electrode sheet 52 on the welding base 2 is in contact with the corresponding parallel electrode sheet 52 on the adjacent other welding base 2, the sub-conductive sheet 522 in the parallel electrode sheet 52 is arranged one-to-one with the sub-conductive sheet 522 in the adjacent other parallel electrode sheet 52, and at this time the sub-conductive sheet 522 is in contact with the corresponding sub-conductive sheet 522.

[0101] Referring to Figure 8 and Figure 9 Since the two sub-conductive sheets 522 of the parallel electrode sheet 52 are connected with the positive and negative poles of the capacitor body 1 respectively, after the connection of the two welding bases 2, the positive pole of the capacitor body 1 is electrically connected with the positive pole of the adjacent other capacitor body 1, and the negative pole of the capacitor body 1 is electrically connected with the negative pole of the adjacent other capacitor body 1, which can realize the parallel connection of the adjacent two capacitor bodies 1.

[0102] Through such a design, a plurality of capacitor bodies 1 are connected in parallel, therefore, by increasing or decreasing the welding bases 2 and the corresponding number of capacitor bodies 1, the capacitor of the application can adapt to different circuit requirements, so that the capacitor can be connected to different circuits, which can improve the applicability of the capacitor of the application. Moreover, according to the different pins 22 of the capacitor welded on the circuit board, any number and position of the capacitor bodies 1 in the capacitor can be selected to be connected to the circuit, which makes the remaining unused capacitor bodies 1 can be used as a backup for the used capacitor bodies 1, and further facilitates the timely replacement of damaged capacitor bodies 1.

[0103] With reference to Figure 7 and Figure 8 In this embodiment, a connecting assembly 6 is arranged between two adjacent welding bases 2, the connecting assembly 6 comprises a connecting rod 61, the connecting rod 61 is arranged on the side wall of the welding base 2, and the length direction of the connecting rod 61 is arranged along the vertical direction. The welding base 2 is provided with a connecting groove 62 on the other side wall, the depth direction of the connecting groove 62 is arranged along the vertical direction, and the connecting groove 62 penetrates the upper side of the welding base 2.

[0104] With reference to Figure 7 and Figure 8 When the two welding bases 2 are connected, the connecting rod 61 on the welding base 2 and the connecting groove 62 on the adjacent other welding base 2 are inserted and matched in the vertical direction. Therefore, the arrangement of the connecting assembly 6 realizes the detachable connection between the two adjacent welding bases 2.

[0105] With reference to Figure 7 and Figure 8 In this embodiment, a strong connecting assembly 7 is further arranged between two adjacent welding bases 2, the strong connecting assembly 7 comprises a strong connecting plate 71, the length direction of the strong connecting plate 71 is arranged along the interval direction of the two adjacent welding bases 2, two fixing bolts 72 are arranged on the strong connecting plate 71, the two fixing bolts 72 are arranged along the length direction of the strong connecting plate 71, and the fixing bolt 72 is rotatably connected with the strong connecting plate 71. The fixing bolt 72 is arranged one-to-one corresponding to the welding base 2, and the fixing bolt 72 is screwed with the corresponding welding base 2.

[0106] The arrangement of the strong connecting assembly 7 can enhance the connection stability between the two welding bases 2, and further improve the structural stability of the capacitor.

[0107] The implementation principle of the embodiment of the application is that: when the capacitor is used, the plurality of welding bases 2 are connected through the connecting assembly 6 and the strong connecting assembly 7, when two adjacent welding bases 2 are connected along the interval direction of the series electrode sheet 51, the two series electrode sheets 51 are tightly contacted under the action of the contact spring 27, at this time, the corresponding two capacitor bodies 1 are connected in series; when two adjacent welding bases 2 are connected along the interval direction of the parallel electrode sheet 52, the two parallel electrode sheets 52 are tightly contacted under the action of the reset spring 29, at this time, the corresponding two capacitor bodies 1 are connected in parallel. Such design makes the capacitor can simultaneously exist a plurality of capacitor bodies 1 connected in series and a plurality of capacitor bodies 1 connected in parallel, which can form a complex two-dimensional capacitor network, thereby increasing the applicability of the capacitor to different circuits.

[0108] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A capacitor characterized by, The application relates to a capacitor body (1), a welding base (2) and an explosion-proof sleeve (3), wherein the explosion-proof sleeve (3) is sleeved outside the capacitor body (1), one end of the explosion-proof sleeve (3) is detachably connected with the welding base (2); two conductive bodies (21) are arranged in the welding base (2) and are spaced apart; one end of the capacitor body (1) is in contact with the two conductive bodies (21), and the positive and negative poles of the capacitor body (1) are respectively in contact with the corresponding conductive bodies (21); two pins (22) are arranged on the welding base (2) and are in one-to-one correspondence with the conductive bodies (21), and the pins (22) are connected with the corresponding conductive bodies (21). The explosion-proof sleeve (3) comprises a through pipe (31) which is coaxially sleeved outside the capacitor body (1) and is spaced apart from the capacitor body (1) on the inner side wall; one end of the through pipe (31) is detachably connected with the welding base (2), and the other end is coaxially connected with a contact plate (32); one end of the capacitor body (1) is in contact with the contact plate (32). The through pipe (31) is screwed with the welding base (2), and the contact plate (32) is rotationally connected with the through pipe (31). A plug-in groove (42) is formed in the welding base (2), and one end of the capacitor body (1) is plug-in matched with the welding base (2).

2. A capacitor according to claim 1, wherein A plurality of clamping blocks (41) are arranged on the welding base (2) and are sequentially and spaced apart along the circumference of the capacitor body (1); the clamping blocks (41) are arranged in a ring shape, and the plug-in groove (42) is formed between the clamping blocks (41); the clamping blocks (41) are slidably connected with the welding base (2) along the corresponding radial direction of the capacitor body (1); An elastic ring (43) is arranged on the welding base (2) and is coaxially arranged with the capacitor body (1); the clamping blocks (41) are located in the elastic ring (43) and are connected with the elastic ring (43).

3. A capacitor according to claim 2, wherein Two detection holes (24) are formed in the side wall of the welding base (2) and are in one-to-one correspondence with the conductive bodies (21); the detection holes (24) penetrate the corresponding conductive bodies (21); 4. The capacitor of claim 1 wherein, Two detection columns (25) are arranged on the side wall of the welding base (2) and are in one-to-one correspondence with the detection holes (24); the detection holes (24) are plug-in matched with the corresponding detection columns (25).

5. A capacitor according to claim 4, wherein A plurality of capacitor bodies (1), welding bases (2) and explosion-proof sleeves (3) are arranged and are in one-to-one correspondence; the welding bases (2) are sequentially and detachably connected; A connecting electrode sheet (5) is arranged on the opposite side walls of the welding base (2) and is connected with the conductive bodies (21).

6. The capacitor of claim 1 wherein, ​ ​ 7. The capacitor of claim 1 wherein, ​ ​ The connecting electrode sheet (5) on the welding base (2) is in contact with the corresponding connecting electrode sheet (5) on the adjacent another welding base (2).

8. A capacitor according to claim 7, wherein The connecting electrode sheet (5) is one-to-one corresponding to the conductive body (21), and the connecting electrode sheet (5) is connected with the corresponding conductive body (21).

9. The capacitor of claim 7 wherein, The connecting electrode sheet (5) comprises an intermediate insulating layer (521) and two sub-conducting sheets (522), the two sub-conducting sheets (522) are spaced apart, the intermediate insulating layer (521) is located between the two sub-conducting sheets (522), and the two sub-conducting sheets (522) are connected with the intermediate insulating layer (521); The sub-conducting sheet (522) is one-to-one corresponding to the conductive body (21), and the sub-conducting sheet (522) is connected with the corresponding conductive body (21).

10. A method of measuring a capacitor for measuring a capacitor as claimed in any one of the preceding claims 1 to 9, characterized by, The method comprises the following steps: S1, integrating a charging circuit and a discharging circuit on a circuit board, and welding a capacitor to the circuit board, so that the capacitor is connected to the charging circuit, the discharging circuit and a working circuit at the same time; S2, disconnecting the working circuit, connecting a multimeter with two pins (22) on the welding base (2); S3, connecting the capacitor to the corresponding charging circuit, and detecting the voltage of the capacitor by the multimeter until the voltage of the capacitor reaches a set voltage, and then disconnecting the charging circuit; S4, after the charging is completed, connecting the capacitor to the discharging circuit for discharging, and detecting the voltage and current of the capacitor by the multimeter until the voltage of the capacitor is reduced to a preset voltage, and then disconnecting the discharging circuit; S5, calculating the capacity and internal resistance of the capacitor according to the collected voltage and current.

Images