Capacitor fixing device and packaging structure

Abstract

The present invention relates to a capacitor fixing device and packaging structure, and relates to the field of capacitor packaging technology. The capacitor fixing device of the present invention includes a tray assembly, the tray assembly including a fixing groove and a discharge groove. The fixing groove is used to support a fixed capacitor, and the discharge groove is located below and connected to the fixing groove. The capacitor fixing device includes a discharge boss disposed within the discharge groove, the discharge boss being used to abut against the capacitor terminal to discharge the capacitor. The technical solution disclosed in this application can solve the problems of poor packaging and low packaging efficiency of existing solder chip capacitors.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor packaging, and in particular to a capacitor fixing device and a packaging structure. Background Art

[0002] Capacitors are key components in electrical appliances, especially in today's era of increasingly advanced technology and highly intelligent devices. Lug capacitors are a key type of capacitor, and their intelligent, miniaturized, and high-power capabilities are all essential.

[0003] In order to package and transport the chip capacitors, paper knife cards are generally placed in the carton to limit and fix the chip capacitors, with the positive and negative terminals of the chip capacitors facing upwards, and discharge paper is placed on top of the chip capacitors to discharge them to meet the packaging requirements.

[0004] However, the applicant found that there are at least the following problems in the existing technology: first, the fixing method of the paper knife card is poor, and the paper knife card is easy to shift, which will cause damage to the solder joint capacitor during transportation; second, the discharge is carried out by placing discharge paper, which increases the packaging steps and leads to low capacitor packaging efficiency. Summary of the Invention

[0005] The embodiments of the present application provide a capacitor fixing device and packaging structure, which can solve the problems of poor packaging and fixing effect and low packaging efficiency of existing solder chip capacitors.

[0006] In a first aspect, an embodiment of the present application provides a capacitor fixing device, comprising:

[0007] A tray assembly, the tray assembly comprising a fixing slot and a discharge slot, the fixing slot being used to support a fixed capacitor, the discharge slot being located below the fixing slot and communicating with the fixing slot;

[0008] Wherein, the capacitor fixing device includes a discharge boss arranged in the discharge groove, and the discharge boss is used to abut against the terminal of the capacitor to discharge the capacitor.

[0009] In one embodiment, the tray assembly comprises:

[0010] A positioning tray, comprising at least one fixing position, wherein the fixing slot is provided on the fixing position; and

[0011] A discharge tray, comprising at least one discharge position, wherein the at least one discharge position corresponds to the at least one fixed position in a one-to-one manner, and the discharge slot is arranged on the discharge position;

[0012] Wherein, the fixing position is inserted into the corresponding discharge slot.

[0013] In one embodiment, a through hole is provided on a side of the fixing position away from the opening of the fixing slot, and the through hole comprises:

[0014] a main body section, which is used for the discharge boss to pass through; and

[0015] The discharge segments are located on both sides of the main body segment and are connected to the main body segment. The discharge segments are used for the terminals of the capacitor to pass through.

[0016] In one embodiment, the discharge tank comprises:

[0017] a first slot body, which is provided on one side of the discharge tray, and is used for inserting the fixing position; and

[0018] a second trough body, which is connected to the first trough body, wherein the cross-sectional width of the first trough body is greater than the cross-sectional width of the second trough body, so as to form a step surface;

[0019] The discharge boss is connected to the bottom of the second trough body, and the height of the discharge boss is greater than the height of the second trough body, so that the discharge boss is partially located in the first trough body.

[0020] In one embodiment, the discharge boss and the discharge tray are connected by integrally forming by vacuum forming, and the discharge boss is made of a conductive material.

[0021] In one embodiment, the positioning tray includes at least one first reinforcement position, and the first reinforcement position is provided with a first reinforcement groove;

[0022] The discharge tray includes at least one second reinforcement position, which corresponds to the at least one first reinforcement position in a one-to-one manner. A second reinforcement groove is provided on the second reinforcement position, which is used to insert the corresponding first reinforcement position.

[0023] In one embodiment, the positioning tray is provided with at least one first positioning groove penetrating the positioning tray in a height direction, and an opening of the first positioning groove is located on a side surface of the positioning tray;

[0024] The discharge tray is provided with at least one second positioning groove penetrating the discharge tray in the height direction. The at least one second positioning groove corresponds to the at least one first positioning groove one by one, and the opening of the second positioning groove is located on the side of the discharge tray.

[0025] In one embodiment, a buffer boss is provided on a side of the discharge position away from the opening of the discharge slot.

[0026] In one embodiment, the at least one fixed bit includes a plurality of fixed bits, and the plurality of fixed bits are arranged in an array in a manner of multiple rows and columns;

[0027] The at least one first reinforcement bit includes a plurality of first reinforcement bits, and the plurality of first reinforcement bits are arranged in an array in a manner of multiple rows and multiple columns;

[0028] The plurality of first reinforcement positions and the plurality of fixing positions are staggeredly distributed in both the transverse direction and the longitudinal direction.

[0029] In a second aspect, an embodiment of the present application provides a water purification device, comprising a housing and the capacitor fixing device as described above, wherein the capacitor fixing device is located in the housing.

[0030] Compared with the prior art, the advantages of the embodiments of the present application are that the tray assembly is provided to securely support the fixed capacitor, providing a good securing effect. The capacitor is fixed in position during transportation and is less likely to be bumped, effectively preventing damage to the capacitor. Discharge of the capacitor is achieved by abutting the discharge boss provided in the discharge tank against the capacitor terminal, eliminating the need for separate discharge paper for discharge, saving packaging steps and improving packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the accompanying drawings.

[0032] Figure 1 is a schematic diagram of the three-dimensional structure of the capacitor fixing device provided by an embodiment of the present invention when a capacitor is installed;

[0033] Figure 2 yes Figure 1 An exploded view of the capacitor fixing device provided in the embodiment when a capacitor is installed;

[0034] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the capacitor fixing device provided in the embodiment of the present invention when equipped with a capacitor from another perspective;

[0035] Figure 4 yes Figure 1 A top view of the capacitor fixing device provided in the embodiment without a capacitor installed;

[0036] Figure 5 yes Figure 1 A front view of the capacitor fixing device provided in the embodiment without a capacitor installed;

[0037] Figure 6 yes Figure 5 Cross-sectional view along AA direction;

[0038] Figure 7 It is a structural diagram of a solder piece capacitor.

[0039] Reference numerals:

[0040] 10. Tray assembly; 110. Fixing slot; 120. Discharge slot; 1201. First slot body; 1202. Second slot body; 130. Positioning tray; 1301. Fixing position; 1302. Through hole; 1303. Main section; 1304. Discharge section; 1306. First reinforcement slot; 1307. First positioning slot; 140. Discharge tray; 1401. Discharge position; 1402. Second reinforcement position; 1403. Second reinforcement slot; 1404. Second positioning slot; 1405. Buffer boss; 20. Discharge boss; 30. Capacitor; 310. Capacitor body; 320. Positive terminal; 330. Negative terminal. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] Chip capacitors are an important type of capacitor family. Intelligent, miniaturized and high-powered capacitors are inseparable from chip capacitors. Figure 7 As shown, the solder piece capacitor includes a capacitor body 310 and a positive terminal 320 and a negative terminal 330 located at one end of the capacitor body 310. The positive terminal 320 and the negative terminal 330 are both sheet-shaped and located in different planes and arranged vertically.

[0043] To package and transport chip capacitors, paper clips are typically placed inside a carton to secure the capacitors in place. With the positive and negative terminals facing upward, discharge paper is placed on top of the capacitors. The packing order is carton - paper clip - chip capacitors - discharge paper.

[0044] However, the applicant found that there are at least the following problems in the existing technology: first, the fixing method of the paper knife card is poor, and the paper knife card is easy to shift, which will cause the solder chip capacitor to bump during transportation, thereby damaging the solder chip capacitor; second, the discharge is carried out by placing discharge paper, which increases the packaging steps and leads to low packaging efficiency.

[0045] In order to solve the above technical problems, at least one embodiment of the present application provides a capacitor fixing device, including a tray assembly 10, the tray assembly 10 includes a fixing groove 110 and a discharge groove 120, the fixing groove 110 is used to support and fix the capacitor 30, and the discharge groove 120 is located below the fixing groove 110 and is connected to the fixing groove 110; wherein, the capacitor fixing device includes a discharge boss 20 arranged in the discharge groove 120, the discharge boss 20 is used to abut against the terminal of the capacitor 30 to discharge the capacitor 30.

[0046] As can be seen from the above, the tray assembly 10 is provided to securely support the capacitor 30, providing a good securing effect. During transportation, the capacitor 30 is fixed in position and is not easily bumped, effectively preventing damage to the capacitor 30. The discharge boss 20 provided in the discharge tank 120 abuts against the terminals of the capacitor 30 to achieve discharge of the capacitor 30, eliminating the need for separate discharge paper for discharge, saving packaging steps and improving packaging efficiency.

[0047] like Figure 1 、 Figure 2 As shown, the capacitor fixing device includes a tray assembly 10 , which includes a fixing groove 110 and a discharge groove 120 . The fixing groove 110 is used to support the fixed capacitor 30 , and the discharge groove 120 is located below the fixing groove 110 and communicates with the fixing groove 110 .

[0048] It should be noted that the fixing groove 110 and the capacitor 30 can be interference fit to achieve fixed support for the capacitor 30. It should also be noted that the shape and size of the fixing groove 110 can be set according to the shape and size of the capacitor 30. For example, the diameter of the fixing groove 110 is 35.5mm-36.5mm, and the depth of the fixing groove 110 is 19.5mm-20.5mm.

[0049] The tray assembly 10 is provided to fix and support the capacitor 30 , which has a good fixing effect. During transportation, the position of the capacitor 30 is fixed and is not prone to collision, thereby effectively preventing the capacitor 30 from being damaged.

[0050] The capacitor fixing device includes a discharge boss 20 disposed in the discharge slot 120 . The discharge boss 20 is used to abut against the terminal of the capacitor 30 to discharge the capacitor 30 .

[0051] It should be noted that if Figure 7 As shown, the terminals of the capacitor 30 include a positive terminal 320 and a negative terminal 330 .

[0052] It should also be noted that the interior of the solder chip capacitor 30 is filled with electrolyte. After pressurized aging during the production process, it is discharged when the product is offline. However, the electrolyte inside the solder chip capacitor 30 will undergo a chemical reaction, causing the voltage of the product to rise within 60V. If the charged solder chip capacitor 30 is directly installed on the circuit board, it will cause other low-voltage components on the circuit board to break down and burn. Therefore, when packaging, the positive terminal 320 and the negative terminal 330 of the solder chip capacitor 30 need to be short-circuited for discharge, so as to ensure that the internal voltage of the solder chip capacitor 30 is 0V when the solder chip capacitor 30 is in use.

[0053] It should also be noted that the cross-section of the discharge boss 20 can be rectangular, and the size of the discharge boss 20 can be set according to the distance between the positive terminal 320 and the negative terminal 330 of the capacitor 30. For example, the length of the discharge boss 20 in the transverse direction is 3 mm, and the length of the discharge boss 20 in the longitudinal direction is 15 mm.

[0054] The discharge boss 20 provided in the discharge tank 120 is in contact with the terminal of the capacitor 30 to achieve discharge of the capacitor 30 , thereby eliminating the need to place a separate discharge paper for discharge, thus saving packaging steps and improving packaging efficiency.

[0055] like Figure 1 、 Figure 2 、 Figure 5 As shown, in some embodiments, the tray assembly 10 includes a positioning tray 130 and a discharge tray 140. The positioning tray 130 and the discharge tray 140 form a double-layer structure, which improves the strength of the tray assembly 10 and prevents deformation of the tray assembly 10, thereby better supporting the fixed capacitor 30.

[0056] The positioning tray 130 includes at least one fixing position 1301, with a fixing groove 110 disposed on each fixing position 1301. It should be noted that the positioning tray 130 can be integrally formed from a transparent PET material using vacuum molding, with the fixing grooves 110 formed by die stamping at the processing position. It should also be noted that each fixing position 1301 is provided with a fixing groove 110, with each fixing position 1301 corresponding to each fixing groove 110.

[0057] The discharge tray 140 includes at least one discharge position 1401, which corresponds one-to-one with at least one fixed position 1301. Discharge slots 120 are disposed on the discharge positions 1401. It should be noted that each discharge position 1401 is provided with a discharge slot 120, and each discharge position 1401 corresponds one-to-one with each discharge slot 120. It should also be noted that a predetermined distance may exist between the bottom of the positive terminal 320 of the capacitor 30, the bottom of the negative terminal 330 of the capacitor 30, and the bottom of the discharge slot 120. The discharge tray 140 provides sufficient space for the terminals of the capacitor 30, preventing damage to the terminals due to lack of space. Furthermore, the discharge tray 140 provides a structural foundation for the discharge of the capacitor 30. Discharge bosses 20 are disposed within the discharge slots 120 of the discharge tray 140 to short-circuit the positive terminal 320 and the negative terminal 330 of the capacitor 30, resulting in discharge.

[0058] The fixing portion 1301 is inserted into the corresponding discharge slot 120. It should be noted that the fixing portion 1301 and the discharge slot 120 have an interference fit, and the positioning tray 130 and the discharge tray 140 can be pressed together to insert the fixing portion 1301 into the corresponding discharge slot 120, thereby achieving connection between the positioning tray 130 and the discharge tray 140.

[0059] like Figure 4 As shown, in some embodiments, a through hole 1302 is provided on a side of the fixing portion 1301 away from the opening of the fixing groove 110. By providing the through hole 1302 on the fixing portion 1301, the fixing groove 110 is connected to the discharge groove 120, providing a structural basis for the discharge of the capacitor 30, so that the terminal of the capacitor 30 abuts against the discharge boss 20, and short-circuit discharge is achieved.

[0060] The through hole 1302 includes a main section 1303 and a discharge section 1304 . The main section 1303 is used for the discharge boss 20 to pass through. The main section 1303 allows the discharge boss 20 to pass through the fixing groove 110 .

[0061] The discharge segments 1304 are located on both sides of the main body segment 1303 and are connected to the main body segment 1303. The discharge segments 1304 are used to allow the terminals of the capacitor 30 to pass through the discharge slot 120. It should be noted that the two discharge segments 1304 are used to allow the positive terminal 320 of the capacitor 30 and the negative terminal 330 of the capacitor 30 to pass through, respectively. It should also be noted that the positive terminal 320 and the negative terminal 330 can abut against the side and top surface of the discharge boss 20. The discharge segments 1304 allow the terminals of the capacitor 30 to pass through, which plays a role in positioning and orienting the capacitor 30, so that the capacitor 30 is fixed in the capacitor fixing device according to the same arrangement position, making it convenient for users to access.

[0062] like Figure 2 As shown, in some embodiments, the discharge tank 120 includes a first tank body 1201 and a second tank body 1202. The first tank body 1201 is disposed on one side of the discharge tray 140 and is used to insert the fixing portion 1301. The second tank body 1202 is connected to the first tank body 1201. The cross-sectional width of the first tank body 1201 is greater than the cross-sectional width of the second tank body 1202, thereby forming a stepped surface. It should be noted that the second tank body 1202 can be a circular tank body with a diameter of 22 mm and a height of 4.5 mm.

[0063] like Figure 2 、 Figure 6 As shown, the discharge boss 20 is connected to the bottom of the second slot body 1202 , and the height of the discharge boss 20 is greater than the height of the second slot body 1202 , so that the discharge boss 20 is partially located in the first slot body 1201 .

[0064] In some embodiments, the discharge boss 20 and the discharge tray 140 are connected by integrated blister molding, and the discharge boss is made of a conductive material. It should be noted that the discharge boss 20 and the discharge tray 140 can be made of PS conductive material, i.e., polystyrene conductive material. The PS conductive material is made of carbon black, polystyrene, and resin using a press to form a sheet, and then formed into the discharge boss 20 and the discharge tray 140 by blister molding. Forming the discharge boss 20 by integrated blister molding eliminates the need for separate discharge paper during the packaging process of the capacitor 30, saving production costs and improving packaging efficiency.

[0065] like Figure 2 As shown, in some embodiments, the positioning tray 130 includes at least one first reinforcement portion, and a first reinforcement groove 1306 is provided on the first reinforcement portion.

[0066] It should be noted that the first reinforcement groove 1306 is formed by die stamping on the first processing position. It should also be noted that a first reinforcement groove 1306 is provided on each first reinforcement position, and the first reinforcement positions and the first reinforcement grooves 1306 correspond one to one.

[0067] The discharge tray 140 includes at least one second reinforcement position 1402 , which corresponds to at least one first reinforcement position. A second reinforcement groove 1403 is provided on the second reinforcement position 1402 , and the second reinforcement groove 1403 is used to insert the corresponding first reinforcement position.

[0068] It should be noted that the second reinforcement groove 1403 is obtained by die stamping at the second processing position.

[0069] It should also be noted that each second reinforcement position 1402 is provided with a second reinforcement groove 1403, and the second reinforcement positions 1402 correspond one-to-one with the second reinforcement grooves 1403. It should also be noted that the second reinforcement grooves 1403 and the first reinforcement positions can be interference fit, and the positioning tray 130 and the discharge tray 140 can be pressed together so that the fixing positions 1301 are inserted into the corresponding discharge grooves 120, thereby achieving connection between the positioning tray 130 and the discharge tray 140.

[0070] like Figure 2 As shown, in some embodiments, the positioning tray 130 is provided with at least one first positioning groove 1307 that passes through the positioning tray 130 in the height direction, and the opening of the first positioning groove 1307 is located on the side of the positioning tray 130; the discharge tray 140 is provided with at least one second positioning groove 1404 that passes through the discharge tray 140 in the height direction, the at least one second positioning groove 1404 corresponds to the at least one first positioning groove 1307, and the opening of the second positioning groove 1404 is located on the side of the discharge tray 140.

[0071] It should be noted that if Figure 1 As shown, the height direction is parallel to the Z direction. It should also be noted that the first positioning groove 1307 and the second positioning groove 1404 have the same shape and size.

[0072] By providing the first positioning groove 1307 and the second positioning groove 1404 , it is convenient to position the tray assembly 10 on the automatic tray loading equipment, thereby realizing automatic tray loading and improving packaging efficiency.

[0073] like Figure 3 As shown, in some embodiments, a buffer boss 1405 is provided on a side of the discharge position 1401 away from the opening of the discharge tank 120. It should be noted that the buffer boss 1405 is connected to the discharge position 1401 by means of integral plastic molding, and the material of the buffer boss 1405 is the same as that of the discharge position 1401, both being PS conductive material.

[0074] When multiple layers of capacitor fixing devices are arranged in the height direction in the box, the capacitor fixing device on the upper layer will directly press on the capacitor 30 on the lower layer. The buffer boss 1405 can play a buffering role. The buffer boss 1405 is used to bear the weight of the capacitor 30 and the capacitor fixing device on the upper layer, avoiding the weight from directly acting on the capacitor 30 on the lower layer, thereby protecting the terminals of the capacitor 30 and avoiding the terminals of the capacitor 30 from being crushed during transportation.

[0075] In some embodiments, at least one fixed position 1301 includes multiple fixed positions 1301, and the multiple fixed positions 1301 are arranged in an array in multiple rows and columns; at least one first reinforcement position includes multiple first reinforcement positions, and the multiple first reinforcement positions are arranged in an array in multiple rows and columns; wherein the multiple first reinforcement positions and the multiple fixed positions 1301 are staggered in both the horizontal and vertical directions.

[0076] It should be noted that if Figure 1 As shown in FIG, the transverse direction is parallel to the X direction, and the longitudinal direction is parallel to the Y direction. Figure 1 As shown, the plurality of fixed bits 1301 may be distributed in an array in the form of five rows and ten columns, and the plurality of first reinforcement bits may be distributed in an array in the form of four rows and nine columns.

[0077] It should also be noted that at least one discharge position 1401 includes multiple discharge positions 1401, and the multiple discharge positions 1401 are arranged in an array in a multi-row and multi-column manner; at least one second reinforcement position 1402 includes multiple second reinforcement positions 1402, and the multiple second reinforcement positions 1402 are arranged in an array in a multi-row and multi-column manner; wherein the multiple second reinforcement positions 1402 and the multiple discharge positions 1401 are staggered in both the horizontal and vertical directions.

[0078] The multiple fixing positions 1301 provide a structural foundation for the multiple fixing slots 110, thereby increasing the capacity of the tray assembly 10 and the number of fixed capacitors 30 that the tray assembly 10 can support. Furthermore, the fixing positions 1301 are staggered with the reinforcement positions to fully utilize the space of the positioning tray 130.

[0079] At least one embodiment of the present application further provides a packaging structure, including a box body and the capacitor fixing device described in any embodiment of the present application, wherein the capacitor fixing device is located in the box body, thereby having all the technical effects brought by the technical solutions of the above embodiments.

[0080] By placing a capacitor fixture in the box to support and discharge the capacitor 30, the paper card and discharge paper are no longer needed, saving packaging steps and reducing packaging costs. Compared with the existing technology, the capacitor 30 packaging process generally uses manual packaging due to the easy deformation of paper card. This application can be combined with other equipment to achieve automated packaging, improving packaging efficiency.

[0081] For example, other equipment includes a visual inspection machine, a visual unloading mechanism, a loading mechanism, a chuck mechanism, a packing robot, a belt conveyor, and a fully automatic carton sealing machine; the capacitor fixture can be stacked in multiple layers on the loading station of the visual inspection machine; the loading mechanism unloads the capacitor fixtures on the loading station one by one in order from top to bottom, and the loading mechanism unloads one capacitor fixture at a time and places the capacitor fixture on the unloading station of the visual unloading mechanism; the chuck mechanism positions the capacitor fixture through the first positioning groove 1307 and the second positioning groove 1404 of the capacitor fixture; the visual unloading mechanism positions the capacitor fixture each time The terminals of the capacitors 30 are placed downward in the fixing slots 110 of the capacitor fixture. When all the fixing slots 110 of the capacitor fixture are filled, the chuck mechanism releases the capacitor fixture, and the capacitor fixture and the capacitor 30 are placed on the packing station. The packing robot grabs the capacitor fixture with the capacitor 30 and places it in the box. When the next capacitor fixture with the capacitor 30 arrives at the packing station, the packing robot repeats the previous action, stacking the capacitor fixtures with the capacitors 30 in multiple layers. When the carton is full, it is transported to the fully automatic carton sealing machine via a belt conveyor to complete the packaging, and then scanned for storage. The fully automatic packaging and storage of the capacitors 30 is realized in a sequential cycle, thereby meeting the fully automatic packaging requirements of the capacitors 30, and the automatic short-circuit discharge packaging requirements of the capacitors 30 are realized by utilizing the discharge boss 20 of the capacitor fixture.

[0082] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A capacitor fixing device, characterized in that: include: A tray assembly, the tray assembly comprising a fixing slot and a discharge slot, the fixing slot being used to support a fixed capacitor, the discharge slot being located below the fixing slot and communicating with the fixing slot; Wherein, the capacitor fixing device includes a discharge boss provided in the discharge groove, and the discharge boss is used to abut against the terminal of the capacitor to discharge the capacitor; The tray assembly includes: A positioning tray, comprising at least one fixing position, wherein the fixing slot is provided on the fixing position; and A discharge tray, comprising at least one discharge position, wherein the at least one discharge position corresponds to the at least one fixed position in a one-to-one manner, and the discharge slot is arranged on the discharge position; Wherein, the fixing position is inserted into the corresponding discharge slot; The discharge boss is connected to the discharge tray by means of integral plastic molding, and the discharge boss is made of conductive material; The bottom of the positive terminal of the capacitor, the bottom of the negative terminal of the capacitor and the bottom of the discharge slot may have a preset distance, and the positive terminal and the negative terminal abut against the side surface and the top surface of the discharge boss.

2. The capacitor fixing device according to claim 1, characterized in that: A through hole is provided on a side of the fixing position away from the opening of the fixing slot, and the through hole includes: a main body section, which is used for the discharge boss to pass through; and The discharge segments are located on both sides of the main body segment and are connected to the main body segment. The discharge segments are used for the terminals of the capacitor to pass through.

3. The capacitor fixing device according to claim 1, wherein: The discharge tank comprises: a first slot body, which is provided on one side of the discharge tray, and is used for inserting the fixing position; and a second trough body, which is connected to the first trough body, wherein the cross-sectional width of the first trough body is greater than the cross-sectional width of the second trough body, so as to form a step surface; The discharge boss is connected to the bottom of the second trough body, and the height of the discharge boss is greater than the height of the second trough body, so that the discharge boss is partially located in the first trough body.

4. The capacitor fixing device according to claim 1, wherein: The positioning tray includes at least one first reinforcement position, and the first reinforcement position is provided with a first reinforcement groove; The discharge tray includes at least one second reinforcement position, which corresponds to the at least one first reinforcement position in a one-to-one manner. A second reinforcement groove is provided on the second reinforcement position, which is used to insert the corresponding first reinforcement position.

5. The capacitor fixing device according to claim 1, characterized in that: The positioning tray is provided with at least one first positioning groove penetrating the positioning tray in the height direction, and the opening of the first positioning groove is located on the side surface of the positioning tray; The discharge tray is provided with at least one second positioning groove penetrating the discharge tray in the height direction. The at least one second positioning groove corresponds to the at least one first positioning groove one by one, and the opening of the second positioning groove is located on the side of the discharge tray.

6. The capacitor fixing device according to claim 1, characterized in that: A buffer boss is provided on a side of the discharge position away from the opening of the discharge slot.

7. The capacitor fixing device according to any one of claims 1 to 6, characterized in that: The at least one fixed bit includes a plurality of fixed bits, and the plurality of fixed bits are arranged in an array in a manner of multiple rows and columns; The at least one first reinforcement bit includes a plurality of first reinforcement bits, and the plurality of first reinforcement bits are arranged in an array in a manner of multiple rows and multiple columns; The plurality of first reinforcement positions and the plurality of fixing positions are staggeredly distributed in both the transverse direction and the longitudinal direction.

8. A packaging structure, characterized in that: It comprises a box body and a capacitor fixing device according to any one of claims 1 to 7, wherein the capacitor fixing device is located in the box body.

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