Tool clamp for rapidly clamping bus capacitor

Abstract

The invention relates to the field of bus capacitor processing, in particular to a tool clamp for quickly clamping a bus capacitor, which comprises a base, a plurality of copper bar locking devices are arranged on the base, each copper bar locking device comprises a shell, a cavity is formed in each shell, a probe inlet is formed in one side of each shell and communicated with the corresponding cavity, an elastic piece is arranged in each cavity, and the elastic pieces are arranged on the base. The top of the elastic piece is fixedly connected with the side wall of the cavity, the bottom of the elastic piece is fixedly connected with a ring body, and the top of the ring body is fixedly connected with a lock cylinder; two sliding plates are connected to the base in a sliding mode, locking plates are arranged at the tops of the sliding plates, a rope body is connected between the sliding plates, and the rope body penetrates through shells of the copper bar locking devices and passes through central openings of ring bodies of the copper bar locking devices. By adopting the technical scheme of the invention, the operation steps are simplified, the operation speed is improved, and adaptive adjustment can be carried out according to different customized bus capacitors.

Description

Technical Field

[0001] This invention relates to the field of busbar capacitor processing technology, and more specifically, to a tooling fixture for quickly clamping busbar capacitors. Background Technology

[0002] Bus capacitors refer to the capacitive effect formed between a bus and ground or between a bus and an adjacent bus in a power system. In motor controllers, they function to smooth DC voltage, absorb pulse currents, and reduce voltage spikes. Bus capacitors are often called DC-Link capacitors or support capacitors, and are primarily used to connect battery packs and motor controllers.

[0003] Bus capacitors are an important component of the electronic control system of new energy vehicles. Since most of these products are custom-made and have many mounting holes, the current production process mostly uses bolts for positioning and installation, which results in low assembly efficiency. When demand increases, the assembly process can easily become a bottleneck. Therefore, how to solve the installation efficiency problem has become a key research focus for those skilled in the art.

[0004] In existing technologies, the mounting holes of the bus capacitor base or the holes of the copper busbar are directly used to bolt onto the positioning block, and then the positioning block is fixed to the back plate, thereby fixing the bus capacitor. The fixture in this method only requires a back plate, positioning block and bolts, which is simple in structure and low in cost. However, each time assembly and disassembly is performed, the bolts need to be screwed in and out, which is too cumbersome for employees to operate, resulting in low assembly efficiency, long process time and reduced production efficiency.

[0005] In addition, bus capacitors are mostly custom-made parts. Whenever the specifications of the bus capacitors change, it is necessary to redesign the corresponding tooling fixtures. The tooling fixtures have low adaptability, and repeated manufacturing is time-consuming and labor-intensive. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a tooling fixture for quickly clamping bus capacitors, which improves operating speed and can be adapted to different customized bus capacitors.

[0007] The present invention is achieved through the following technical solution: a tooling fixture for quickly clamping bus capacitors, including a base, a plurality of copper bus lockers on the base, each copper bus locker including a housing, a cavity inside the housing, an inlet on one side of the housing communicating with the cavity, an elastic element inside the cavity, the elastic element being located on the side of the inlet near the base, the top of the elastic element being fixedly connected to the side wall of the cavity, a ring being fixedly connected to the bottom of the elastic element, and a lock core being fixedly connected to the top of the ring. Two sliding plates are slidably connected to the base. A locking plate is provided on the top of the sliding plates. A rope is connected between the sliding plates. The rope passes through the housing of each copper busbar lock and through the central opening of the ring of each copper busbar lock. It also includes a tooling top plate, a base for placing the bus capacitor, a probe for inserting the copper busbar lock into the copper busbar of the bus capacitor, a tooling top plate for covering the bus capacitor, a sliding plate for sliding the lock plate to the top of the tooling top plate and loosening the rope, and an elastic element for pushing the lock cylinder out after the rope is loosened so that the lock cylinder engages with the copper busbar of the bus capacitor.

[0008] Furthermore, brackets are provided on both sides of the base, and adjustment rods are fixedly connected between the brackets. The copper busbar locks are slidably connected to the base. A fixing clip is provided on the side of the housing away from the probe inlet, and the fixing clip is used to hold the adjustment rod.

[0009] Furthermore, the sidewall of the shell is provided with an observation window for observing the cavity.

[0010] Furthermore, a constraint plate is fixedly connected to the inner wall of the cavity, and a positioning hole is opened on the constraint plate, with the lock cylinder slidably connected in the positioning hole.

[0011] Furthermore, a lock hole is provided on the top wall of the cavity, and one end of the lock cylinder is used to insert into the lock hole after the lock cylinder is ejected.

[0012] Furthermore, the skateboard is equipped with a telescopic component for adjusting the height of the locking plate.

[0013] Furthermore, the base is equipped with clips for locking the skateboard in place.

[0014] Furthermore, a platform is provided on the base, and the height of the probe entrance is higher than the platform.

[0015] The technical solution of the present invention has at least the following beneficial effects: When using, place the bus capacitor on the base, slide the bus capacitor so that all the copper busbars of the bus capacitor are inserted into the probe and pushed to the bottom, cover the bus capacitor with the fixture top plate, slide the slide plate from both sides towards the center, the locking plate of the slide plate will slide to the top of the fixture top plate, thereby locking the fixture top plate to prevent movement in the height direction, and also preventing the bus capacitor from moving in the height direction.

[0016] Simultaneously, as the sliding plates slide towards the center, the distance between them shortens, causing the rope between them to slacken. The reduced rope tension allows the elastic element to overcome the rope's pull and contract, pushing the lock cylinder upwards and into the hole on the copper busbar of the bus capacitor. The lock cylinder engages with the hole on the copper busbar, restraining the bus capacitor's movement in the forward, backward, left, and right directions, thus securing the bus capacitor. After securing the bus capacitor, the user can perform further assembly and processing.

[0017] Since busbar capacitors are mostly custom-made components, the height and distribution of copper busbars vary depending on the model. Separating the height constraint from the front-to-back and left-to-right constraints allows users to easily adjust the busbars according to their specific models. The tension of the rope is not affected by the position of the copper busbar lock, allowing users to freely adjust the lock's position to align with the busbar positions of the busbar capacitors, thus adapting to the copper busbar distribution of different busbar capacitor models.

[0018] After processing, the two sliding plates are moved to either side, and the lock plate is removed from their restraint. As the distance between the two sliding plates increases, the rope will taut again, stretching the elastic element and causing the lock cylinder to descend, no longer restraining the copper busbar. The user can then remove the bus capacitor and replace it with a new one for further processing.

[0019] Compared with existing technologies, the cumbersome bolt screwing-in and screwing-out operation is eliminated. The sliding opening of the slide plate drives the constraint of the busbar capacitor in the height direction and the front-back and left-right directions in one action, which greatly simplifies the operation steps of the tooling fixture and improves production efficiency. Through rope transmission, the copper busbar lock can freely change position and can adapt to the copper busbar distribution of different models of busbar capacitors. Attached Figure Description

[0020] Figure 1 This is an isometric schematic diagram of an embodiment of the tooling fixture for quickly clamping bus capacitors according to the present invention; Figure 2 This is a top view schematic diagram of an embodiment of the tooling fixture for quickly clamping bus capacitors according to the present invention; Figure 3 This is an isometric view of another embodiment of the tooling fixture for quickly clamping bus capacitors according to the present invention; Figure 4 This is an isometric view of the copper busbar locker of an embodiment of the tooling fixture for quickly clamping busbar capacitors according to the present invention; Figure 5 This is a cross-sectional schematic diagram of the copper busbar locker in an embodiment of the tooling fixture for quickly clamping busbar capacitors according to the present invention; Figure 6 for Figure 5 A front sectional view of the copper busbar lock in the diagram; Figure 7 for Figure 5 A front sectional view of the elastic element of the copper busbar lock after it has contracted.

[0021] Reference numerals: 1. Base; 2. Copper busbar locker; 3. Slide plate; 4. Locking plate; 5. Rope; 6. Tooling top plate; 7. Bracket; 8. Adjusting rod; 9. Fixing clamp; 10. Buckle; 11. Pad; 12. Telescopic component; 201. Housing; 202. Cavity; 203. Probe entrance; 204. Elastic component; 205. Ring; 206. Lock cylinder; 207. Constraint plate; 208. Lock hole. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following detailed description illustrates the specific implementation method: Example 1 As attached Figures 1-7As shown, a tooling fixture for quickly clamping busbar capacitors includes a base 1, on which a plurality of copper busbar lockers 2 are provided. Each copper busbar locker 2 includes a housing 201, with a cavity 202 inside the housing 201. A probe 203 is provided on one side of the housing 201, communicating with the cavity 202. The size of the probe 203 matches the standard copper busbar width, and the height of the probe 203 is greater than the standard copper busbar thickness to accommodate copper busbars of different heights. An elastic element 204, which is a spring, is provided inside the cavity 202. The elastic element 204 is located on the side of the probe 203 near the base 1. The top of the elastic element 204 is welded and fixed to the side wall of the cavity 202. A ring 205 is welded and fixed to the bottom of the elastic element 204, and a lock core 206 is welded and fixed to the top of the ring 205. The lock core 206 passes through the middle of the spring. Both sides of the base 1 are bolted with brackets 7, and adjustment rods 8 are welded and fixed between the brackets 7. The copper busbar locks 2 are slidably connected to the base 1. A fixing clip 9 is installed on the side of the housing 201 away from the probe inlet 203. The fixing clip 9 includes two clamping bodies, which are locked by adjusting bolts. The fixing clip 9 is used to hold the adjustment rod 8.

[0026] Two sliding plates 3 are slidably connected to the base 1. A locking plate 4 is provided on the top of the sliding plate 3. A telescopic component 12 for adjusting the height of the locking plate 4 is provided on the sliding plate 3. The telescopic component 12 is a cylinder. A rope 5 is connected between the sliding plates 3. The rope 5 is preferably a non-elastic rope. The rope 5 passes through the housing 201 of each copper busbar lock 2 and through the central opening of the ring 205 of each copper busbar lock 2.

[0027] It also includes a tooling top plate 6, which can be opened in the middle as needed to facilitate the user to process the top of the bus capacitor. The base 1 is used to place the bus capacitor. The probe 203 of the copper bus lock 2 is used to insert the copper bus of the bus capacitor. The tooling top plate 6 is used to cover the bus capacitor. The slide plate 3 is used to slide the locking plate 4 to the top of the tooling top plate 6 and loosen the rope 5. The elastic element 204 is used to push out the lock core 206 after the rope 5 is loosened so that the lock core 206 fits into the copper bus of the bus capacitor.

[0028] This embodiment focuses on the bus capacitor in the electronic control part of a new energy vehicle. The bus capacitor is box-shaped, and multiple copper busbars are provided on one side of the bus capacitor. The copper busbars are used for circuit connection. A hole is opened on the copper busbar. The hole facilitates circuit connection, fixation, heat dissipation, etc.

[0029] When in use, place the bus capacitor on the base 1 and slide the bus capacitor toward the copper bus lock 2 so that the copper bus of the bus capacitor is inserted into the probe 203 and pushed to the bottom. When the copper bus is pushed to the bottom, the hole on the copper bus will be aligned with the lock cylinder 206.

[0030] The fixture top plate 6 is placed over the bus capacitor. The function of the fixture top plate 6 is to create a flat surface on the bus capacitor, so that when the slide plate 3 slides, the locking plate 4 will not affect the electrical components on the bus capacitor. When the user slides the slide plate 3 from both sides towards the center, the locking plate 4 of the slide plate 3 will slide to the top of the fixture top plate 6, thereby locking the fixture top plate 6 to prevent movement in the vertical direction. This also prevents the bus capacitor from moving in the vertical direction.

[0031] Simultaneously, as the slide plates 3 slide towards the center, the distance between the slide plates 3 shortens, causing the rope 5 between the slide plates 3 to loosen. With reduced tension in the rope 5, the elastic element 204 can overcome the tension and contract, causing the lock cylinder 206 to push upwards and into the hole on the copper busbar of the bus capacitor. The lock cylinder 206 engages with the hole on the copper busbar, restraining the movement of the bus capacitor in the front-back, left-right, and right directions, thus securing the bus capacitor. Since the rope 5 passes through all the copper busbar lockers 2, each copper busbar locker 2 will trigger the insertion action of the lock cylinder 206. The user can then perform further assembly and processing of the bus capacitor after it has been secured.

[0032] Since busbar capacitors are mostly custom-made components, the height and distribution of copper busbars vary depending on the model. Separating the height constraint from the front-to-back and left-to-right constraints allows users to easily adjust the busbars according to their model, avoiding the need to remake the tooling fixture every time a different busbar capacitor model is changed. The tension of the rope 5 is not affected by the position of the copper busbar lock 2, so users can freely adjust the position of the copper busbar lock 2 to align it with the copper busbar position of the busbar capacitor, thus adapting to the copper busbar distribution of different busbar capacitor models.

[0033] The copper busbar lock 2 can change its position by sliding on the base 1, and lock the position of the housing 201 by clamping the adjusting rod 8 with the fixing clip 9 on the back of the housing 201. Since the adjustment is made by free sliding and constrained by the clamping friction of the fixing clip 9, it is more adaptable and has no minimum scale, so it can adapt to the slight changes in the position of the copper busbar of different types of bus capacitors.

[0034] In the vertical direction, the height of the copper busbar is compatible through the probe 203. Since the lock cylinder 206 only restricts movement in the left and right directions, the copper busbar can float, thus adapting to different copper busbar heights. However, the main body of the bus capacitor also has different heights. The user can adjust the height of the lock plate 4 through the telescopic component 12 to adapt it. The height can be adjusted according to the height of the top plate 6 of the mounting fixture after the bus capacitor is assembled, ensuring that the lock plate 4 can effectively restrain the load. After the lock plate 4 moves to the top of the top plate 6 of the fixture, the locking tightness can be enhanced by further lowering the height of the lock plate 4.

[0035] After processing, slide the two sliding plates 3 to both sides, and the lock plate 4 can be removed after being freed from the constraint of the sliding plates 3. Because the distance between the two sliding plates 3 increases, the rope 5 will be taut again, and the elastic element 204 will be stretched again, causing the lock cylinder 206 to descend and no longer constrain the copper busbar position. The user can then remove the bus capacitor and replace it with a new one for further processing.

[0036] This embodiment eliminates the cumbersome bolt screwing-in and screwing-out operation. The sliding opening action of the slide plate 3 drives the constraint on the height and front-back and left-right directions of the bus capacitor, which greatly simplifies the operation steps of the tooling fixture and improves production efficiency. Through the transmission of the rope body 5, the copper bus lock 2 can freely change position and can adapt to the copper bus distribution of different models of bus capacitors. This means that when processing different models of bus capacitors, it is not necessary to design tooling fixtures of corresponding sizes for each bus capacitor.

[0037] Example 2 The difference from the above embodiment is that the side wall of the housing 201 is provided with an observation window for observing the cavity 202. A constraint plate 207 is fixedly connected to the inner side wall of the cavity 202, and a positioning hole is opened on the constraint plate 207, in which the lock cylinder 206 is slidably connected. A lock hole 208 is opened on the top wall of the cavity 202, and one end of the lock cylinder 206 is used to insert into the lock hole 208 after the lock cylinder 206 is ejected.

[0038] In actual processing, there may be situations where the lock cylinder 206 does not pop out, or the lock cylinder 206 is not aligned with the hole on the copper busbar of the bus capacitor. The observation window allows users to directly observe the pop-out status of the lock cylinder 206, so as to grasp the locking engagement status in a timely manner.

[0039] Although the elastic element 204 mainly expands and contracts vertically, it can also deform to a certain extent in the lateral direction due to its elastic nature. Therefore, a constraint plate 207 is provided. The constraint plate 207 can limit the position of the lock cylinder 206 in the lateral direction through the positioning hole. At the same time, after the lock cylinder 206 is ejected, it can cooperate with the lock hole 208. In this way, both ends of the lock cylinder 206 are constrained, which can enhance its locking stability and make it less prone to shaking after locking the bus capacitor.

[0040] Example 3 The difference from the above embodiment is that the base 1 is provided with a buckle 10 for locking the position of the slide plate 3.

[0041] The tension of the rope 5 is affected by the sliding of the slide plate 3. When the rope 5 slackens, the elastic element 204 contracts, which causes the ring 205 to move upward. The upward movement of the ring 205 also pulls the rope 5 upward. Therefore, the two ends of the rope 5 will naturally drive the slide plate 3 to move towards the center. The function of the buckle 10 is to lock the slide plate 3 when the user slides the slide plate 3 to the sides, so that the slide plate 3 will not move towards the center naturally, making it convenient for the user to insert the bus capacitor.

[0042] Example 4 The difference from the above embodiment is that the base 1 is provided with a platform 11, and the height of the probe 203 is higher than the platform 11.

[0043] Different busbar capacitors have different copper busbar heights, so the larger the opening height of the probe inlet 203, the better, to accommodate a wider range of copper busbar heights. However, components such as the lock cylinder 206 are located below the probe inlet 203, making it difficult for the probe inlet 203 to extend downwards. Therefore, a platform 11 is set on the base 1 to raise the busbar capacitors, offsetting the space occupied by components such as the lock cylinder 206 at the bottom of the probe inlet 203, allowing the probe inlet 203 to accommodate a wider range of copper busbar heights.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A tooling fixture for quickly clamping bus capacitors, characterized in that, Includes a base (1), and a number of copper busbar locks (2) are provided on the base (1). The copper busbar locks (2) include a housing (201), and a cavity (202) is provided inside the housing (201). A probe (203) is provided on one side of the housing (201). The probe (203) communicates with the cavity (202). An elastic element (204) is provided inside the cavity (202). The elastic element (204) is located on the side of the probe (203) close to the base (1). The top of the elastic element (204) is fixedly connected to the side wall of the cavity (202). A ring (205) is fixedly connected to the bottom of the elastic element (204). A lock cylinder (206) is fixedly connected to the top of the ring (205). Two sliding plates (3) are slidably connected on the base (1). A locking plate (4) is provided on the top of the sliding plates (3). A rope (5) is connected between the sliding plates (3). The rope (5) passes through the housing (201) of each copper busbar lock (2) and through the central opening of the ring (205) of each copper busbar lock (2). It also includes a tooling top plate (6), a base (1) for placing the bus capacitor, a probe (203) of the copper bus lock (2) for inserting the copper bus of the bus capacitor, a tooling top plate (6) for covering the bus capacitor, a sliding plate (3) for sliding to position the locking plate (4) on top of the tooling top plate (6) and loosen the rope (5), and an elastic element (204) for pushing out the lock core (206) after the rope (5) is loosened so that the lock core (206) fits into the copper bus of the bus capacitor.

2. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, The base (1) is provided with brackets (7) on both sides, and the brackets (7) are fixedly connected with adjustment rods (8). The copper busbar locks (2) are slidably connected to the base (1). The housing (201) is provided with a fixing clip (9) on the side away from the probe inlet (203). The fixing clip (9) is used to hold the adjustment rod (8).

3. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, The side wall of the shell (201) is provided with an observation window for observing the cavity (202).

4. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, A constraint plate (207) is fixedly connected to the inner wall of the cavity (202). A positioning hole is provided on the constraint plate (207), and the lock cylinder (206) is slidably connected in the positioning hole.

5. The tooling fixture for quickly clamping bus capacitors according to claim 4, characterized in that, The top wall of the cavity (202) is provided with a lock hole (208), and one end of the lock cylinder (206) is used to insert into the lock hole (208) after the lock cylinder (206) is pushed out.

6. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, The skateboard (3) is equipped with a telescopic component (12) for adjusting the height of the locking plate (4).

7. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, The base (1) is provided with a buckle (10) for locking the position of the slide (3).

8. The tooling fixture for quickly clamping bus capacitors according to claim 1, characterized in that, A platform (11) is provided on the base (1), and the height of the probe entrance (203) is higher than the platform (11).

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