Lithium battery aging test equipment

Abstract

The invention relates to the technical field of battery testing, in particular to lithium battery aging test equipment which comprises an aging cabinet, two symmetrically-arranged cabinet door mechanisms are fixedly installed at the front end of the aging cabinet, a control box is installed at the top end of the aging cabinet, and a plurality of supporting plates are fixedly installed in the aging cabinet. A plurality of protection mechanisms are arranged at the upper end of the supporting plate, a partition plate is arranged between every two adjacent protection mechanisms, and a rubber sheet is attached to the upper end of the side surface of each partition plate. Through the arrangement of the protection mechanism, energy generated by explosion is collected and discharged backwards, the explosion is prevented from hurting workers located on the front side, lithium batteries generated by explosion do not affect lithium batteries in other areas, the protection mechanism is automatically opened along with opening of the cabinet door, the batteries are sent out, and the workers can conveniently take away the tested batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing, in particular to a lithium battery aging testing device. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and non-aqueous electrolyte solution. In the production process of lithium batteries, lithium batteries will be subjected to cycle aging test before output. The test methods include constant current charge and discharge test and capacity test at different rates. Constant current charge and discharge test refers to charging lithium-ion batteries with constant current under a specified temperature environment until the set charge cut-off voltage is reached, and then discharging with constant current until the discharge cut-off voltage is reached. By recording the charge capacity and discharge capacity of each cycle, the attenuation of battery capacity with the number of cycles can be observed. Capacity test at different rates means that in addition to testing at a single rate, it will also be tested at multiple different charge and discharge rates. The capacity performance of the battery is different at different rates. The polarization phenomenon of the battery is more serious at a high rate, and the capacity decay may be faster. The test process usually uses an aging cabinet for testing. During the aging cabinet test, a certain number of batteries will be charged and discharged at the same time. During the test, if there is a problem with the battery quality, the battery may explode. The existing aging cabinet cannot protect the staff in the event of an explosion. Summary of the invention

[0003] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a lithium battery aging test device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides a lithium battery aging test device, including an aging cabinet, two symmetrically arranged cabinet door mechanisms are fixedly installed at the front end of the aging cabinet, a control box is installed at the top of the aging cabinet, a plurality of support plates are fixedly installed inside the aging cabinet, a plurality of protection mechanisms are arranged at the upper ends of the support plates, a partition plate is arranged between two adjacent protection mechanisms, and a rubber sheet is attached to the upper ends of the side surfaces of the partition plates; The protection mechanism includes an upper cover mechanism, a moving mechanism disposed on the lower side of the upper cover mechanism, a test box disposed on the left side of the upper cover mechanism, and a fixing mechanism disposed on the upper surface of the moving mechanism; The upper cover mechanism includes a half gear, a connecting plate fixedly mounted on the top of the half gear, an upper cover plate arranged on the top of the connecting plate, and a front cover plate arranged on the right end of the upper cover plate. A fixed shaft is arranged inside the half gear, and the fixed shaft is fixedly connected to the side surface of the partition plate. The mobile mechanism includes a mobile platform, two racks fixedly connected to the left and right sides of the mobile platform, and a clamping handle fixedly connected to the front end of the racks, a threaded rod is threadedly connected inside the right rack, one end of the threaded rod is fixedly connected to a driven sprocket, and an auxiliary rod is slidably connected inside the left rack; The fixing mechanism includes a wire clamping plate, two wire clamping grooves on both sides of the upper surface of the wire clamping plate, and a fixing plate welded to the top of the front surface of the wire clamping plate, a lifting rod is slidably connected inside the fixing plate, an auxiliary rope is connected inside the lifting rod, the lower end of the lifting rod is fixedly connected to a limiting plate, a spring is arranged between the upper surface of the limiting plate and the lower surface of the fixing plate, and a rubber pad is arranged on the lower surface of the limiting plate.

[0005] As a further improvement of the present technical solution, the cabinet door mechanism includes a rotating frame fixedly installed on one side of the front surface of the aging cabinet, a rotating shaft rotatably connected to the inside of the rotating frame, and a cabinet door installed on the rotating shaft. A plurality of worm gears are installed on the side surface of the rotating shaft, a worm is meshingly installed on one side of the worm gear, a transmission rod is welded to the end of the worm, and two support blocks are rotatably connected to the outer surface of the transmission rod, the support blocks are welded to the side surface of the aging cabinet, a driving sprocket is installed on the other end of the transmission rod, and an empty groove for placing the worm gear is opened on the side surface of the cabinet door.

[0006] As a further improvement of the present technical solution, a transmission sprocket fixing rod will be welded to the outer end of the threaded rod inside the moving mechanism near one end of the driving sprocket, a transmission sprocket will be installed on the transmission sprocket fixing rod, a transmission chain will be installed between the transmission sprocket and the driving sprocket, and a chain will be connected between the driven sprockets of the two moving mechanisms located on the same side and the same row.

[0007] As a further improvement of the technical solution, the aging cabinet and its internal structure are made of explosion-proof materials, and the height of the protection mechanism is equal to half the height of the partition plate.

[0008] As a further improvement of the technical solution, the auxiliary rope is an elastic rope, the top end of the auxiliary rope is fixedly connected to the lower surface of the upper cover plate, and there is a gap between the lower surface of the upper cover plate and the upper surface of the wire clamping plate.

[0009] As a further improvement of the technical solution, the half gear is meshingly connected with the rack, and the distance between the wire clamping grooves is equal to the width of the fixing plate.

[0010] As a further improvement of the technical solution, the aging cabinet is divided into left and right sides with the two cabinet door mechanisms as dividing points, and the threaded grooves opened on the threaded rods inside the two parts of the protection mechanisms on the left and right sides of the aging cabinet are in opposite directions.

[0011] As a further improvement of the technical solution, a gap is left between the cabinet door and the front surface of the aging cabinet, and the height of the empty groove opened on the side surface of the cabinet door is greater than the thickness of the worm.

[0012] As a further improvement of the technical solution, a pull handle is installed on the front surface of the cabinet door, and the cabinet door is made of explosion-proof plastic.

[0013] As a further improvement of the technical solution, the control box is electrically connected to the test box, and the test wire extending from the test box is clamped in the wire clamping slot.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The lithium battery aging test equipment, through the setting of the protection mechanism, if the lithium battery undergoing aging test in the aging cabinet explodes, under the dual protection of the protection mechanism and the cabinet door mechanism, the energy generated by the explosion will usually flow backwards from the gap between the card plate and the upper cover mechanism, and will not cause harm to the staff in the fan-shaped area on the front side of the aging cabinet.

[0015] 2. The lithium battery aging test equipment, the interior of the aging cabinet is made of explosion-proof materials. When a lithium battery in one of the protection mechanisms explodes, it will not affect the lithium batteries in other areas.

[0016] 3. For this lithium battery aging test equipment, when the user opens the cabinet door, with the cooperation of the worm gear and sprocket chain, the threaded rod can automatically push the mobile platform outward, and as the mobile platform is pushed, the upper cover mechanism opens upward and pulls up the fixed plate, making it convenient for the staff to take away the test battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0018] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention; Figure 2 It is a schematic diagram of the overall back structure of the present invention; Figure 3 It is a schematic diagram of the structure of the aging cabinet of the present invention; Figure 4 It is a schematic diagram of the protection mechanism structure of the present invention; Figure 5It is a schematic diagram of the structure of the upper cover mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the mobile mechanism of the present invention; Figure 7 It is a schematic diagram of the fixing mechanism structure of the present invention; Figure 8 It is a schematic diagram of the cabinet door mechanism structure of the present invention; Fig. 9 It is a schematic diagram of the installation structure of the transmission sprocket of the present invention; The meaning of each number in the figure is: 1. Aging cabinet; 11. Support plate; 12. Protection mechanism; 121. Upper cover mechanism; 1211. Half gear; 1212. Fixed shaft; 1213. Connecting plate; 1214. Upper cover; 1215. Front cover; 122. Moving mechanism; 1221. Moving platform; 1222. Snap-on handle; 1223. Rack; 1224. Threaded rod; 1225. Driven sprocket; 1226. Auxiliary rod; 123. Test box; 124. Fixing mechanism; 1241. Wire clamping plate; 1242. Wire clamping groove; 1243. Fixed plate; 1244. Auxiliary rope; 1245. Lifting rod; 1246. Spring; 1247. Limiting plate; 1248. Rubber pad; 13. Partition plate; 14. Rubber sheet; 2. Cabinet door mechanism; 21. Rotating frame; 22. Cabinet door; 23. Rotating shaft; 24. Worm gear; 25. Worm; 26. Support block; 27. Transmission rod; 28. Driving sprocket; 3. Control box; 4. Transmission sprocket; 41. Transmission sprocket fixing rod; 5. Transmission chain. DETAILED DESCRIPTION

[0019] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0020] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0021] See also Figure 1-Figure 9 As shown, the present invention provides a lithium battery aging test device, including an aging cabinet 1, two symmetrically arranged cabinet door mechanisms 2 are fixedly installed at the front end of the aging cabinet 1, a control box 3 is installed at the top of the aging cabinet 1, a plurality of support plates 11 are fixedly installed inside the aging cabinet 1, a plurality of protection mechanisms 12 are arranged at the upper end of the support plates 11, a partition plate 13 is arranged between two adjacent protection mechanisms 12, a rubber sheet 14 is attached to the upper end of the side surface of the partition plate 13, and the protection mechanisms 12 are isolated from each other by the partition plate 13 to prevent mutual influence when an explosion occurs; The protection mechanism 12 includes an upper cover mechanism 121, a moving mechanism 122 disposed on the lower side of the upper cover mechanism 121, a test box 123 disposed on the left side of the upper cover mechanism 121, and a fixing mechanism 124 disposed on the upper surface of the moving mechanism 122, which can provide protection from five directions of the battery, namely, top, bottom, left, right, and front, and guide the heat generated by the explosion to surge backwards without affecting the staff at the front side; The upper cover mechanism 121 includes a half gear 1211, a connecting plate 1213 fixedly mounted on the top of the half gear 1211, an upper cover plate 1214 arranged on the top of the connecting plate 1213, and a front cover plate 1215 arranged on the right end of the upper cover plate 1214. A fixed shaft 1212 is arranged inside the half gear 1211, and the fixed shaft 1212 is fixedly connected to the side surface of the partition plate 13, so that the half gear 1211 can rotate with the movement of the rack 1223, so that when the mobile platform 1221 moves outward, the half gear 1211 can drive the upper cover mechanism 121 to rotate upward and open; The moving mechanism 122 includes a moving platform 1221, two racks 1223 fixedly connected to the left and right sides of the moving platform 1221, and a clamping handle 1222 fixedly connected to the front end of the racks 1223. The right rack 1223 is internally threadedly connected with a threaded rod 1224, one end of the threaded rod 1224 is fixedly connected with a driven sprocket 1225, and the left rack 1223 is internally slidably connected with an auxiliary rod 1226. The rotation of the threaded rod 1224 will push the moving platform 1221 outwards. The fixing mechanism 124 includes a wire clamping plate 1241, two wire clamping grooves 1242 opened on both sides of the upper surface of the wire clamping plate 1241, and a fixing plate 1243 welded to the top of the front surface of the wire clamping plate 1241, a lifting rod 1245 is slidably connected inside the fixing plate 1243, an auxiliary rope 1244 is connected inside the lifting rod 1245, the lower end of the lifting rod 1245 is fixedly connected to a limiting plate 1247, a spring 1246 is arranged between the upper surface of the limiting plate 1247 and the lower surface of the fixing plate 1243, a rubber pad 1248 is arranged on the lower surface of the limiting plate 1247, the limiting plate 1247 presses the lithium battery to limit the lithium battery, and under the connection of the auxiliary rope 1244, when the upper cover mechanism 121 is opened upward, the lifting rod 1245 will be pulled up, so that the limiting plate 1247 moves upward to release the limit on the battery.

[0022] Specifically, the cabinet door mechanism 2 includes a rotating frame 21 fixedly installed on one side of the front surface of the aging cabinet 1, a rotating shaft 23 rotatably connected to the inside of the rotating frame 21, and a cabinet door 22 installed on the rotating shaft 23. A plurality of worm wheels 24 are installed on the side surface of the rotating shaft 23. A worm 25 is meshingly installed on one side of the worm wheel 24. A transmission rod 27 is welded to the end of the worm 25. Two support blocks 26 are rotatably connected to the outer surface of the transmission rod 27. The support blocks 26 are welded to the side surface of the aging cabinet 1. A driving sprocket 28 is installed on the other end of the transmission rod 27. An empty groove is opened on the side surface of the cabinet door 22 for placing the worm wheel 24. When the cabinet door 22 rotates, the rotating shaft 23 will rotate with the rotation of the cabinet door 22, so that the worm wheel 24 installed on the rotating shaft 23 rotates and drives the worm 25 to rotate.

[0023] Furthermore, a transmission sprocket fixing rod 41 will be welded to the outer end of the threaded rod 1224 inside the moving mechanism 122 near one end of the driving sprocket 28, a transmission sprocket 4 will be installed on the transmission sprocket fixing rod 41, a transmission chain 5 will be installed between the transmission sprocket 4 and the driving sprocket 28, and a chain will be connected between the driven sprockets 1225 of the two moving mechanisms 122 located in the same row on the same side, so that the two moving mechanisms 122 on the same side will move synchronously.

[0024] Specifically, the aging cabinet 1 and its internal structure are made of explosion-proof materials. The height of the protection mechanism 12 is equal to half the height of the partition plate 13, and space is reserved for opening the upper cover mechanism 121.

[0025] In addition, the auxiliary rope 1244 is an elastic rope, and the top end of the auxiliary rope 1244 is fixedly connected to the lower surface of the upper cover plate 1214. There is a gap between the lower surface of the upper cover plate 1214 and the upper surface of the wire clamping plate 1241 to facilitate the flow of heat generated by the explosion.

[0026] Furthermore, the half gear 1211 is meshedly connected with the rack 1223 , and the distance between the wire clamping grooves 1242 is equal to the width of the fixing plate 1243 , so that the test wires extending from the test box 123 can be clamped in the wire clamping grooves 1242 .

[0027] Specifically, the aging cabinet 1 is divided into left and right sides with the two cabinet door mechanisms 2 as the dividing point. The threaded grooves on the threaded rods 1224 inside the two parts of the protective mechanisms 12 on the left and right sides of the aging cabinet 1 are in opposite directions. Since the cabinet doors 22 on both sides rotate in different directions, the threaded grooves on the threaded rods 1224 need to be in opposite directions so that the moving mechanisms 122 on the left and right sides can move outward.

[0028] It is worth noting that there is a gap between the cabinet door 22 and the front surface of the aging cabinet 1 , and the height of the empty groove opened on the side surface of the cabinet door 22 is greater than the thickness of the worm 25 to prevent the cabinet door 22 from hitting the worm 25 when it is opened.

[0029] Furthermore, a pull handle is installed on the front surface of the cabinet door 22. The cabinet door 22 is made of explosion-proof plastic. The cabinet door 22 is a second line of protection. The pull handles can be fixed by installing padlocks.

[0030] Furthermore, the control box 3 is electrically connected to the test box 123 , and the test line extending from the test box 123 is clamped in the wire clamping slot 1242 . The test line moves with the wire clamping plate 1241 , making it convenient for the staff to connect the test line to the lithium battery.

[0031] It is worth noting that the structures and working principles of the control box 3 and the test box 123 involved in this embodiment are well known to those skilled in the art and will not be elaborated herein.

[0032] The invention is suitable for use in aging tests of lithium batteries. When in use, a staff member pulls the pull handle installed on the surface of the cabinet door 22 to slowly pull the cabinet door 22 outwards. As the cabinet door 22 rotates, the rotating shaft 23 connected to the cabinet door 22 also rotates accordingly, and the rotating shaft 23 drives the worm wheel 24 and the worm 25 to start transmission. Then, the active sprocket 28 installed at the end of the worm 25 cooperates with the transmission chain to transmit the rotation to the position of the driven sprocket 1225. The driven sprocket 1225 controls the threaded rod 1224 to rotate, so as to achieve the purpose of pushing the mobile platform 1221 outwards. As the mobile platform 1221 moves outwards, the racks 1223 on both sides of the mobile platform 1221 are The upper cover mechanism 121 meshed at the upper end will also be synchronously rotated upward to open, and as the upper cover mechanism 121 rotates upward, under the pull of the auxiliary rope 1244, the lifting rod 1245 will also move upward, so that the limit plate 1247 moves upward and leaves the surface of the mobile platform 1221. Then the staff can connect the test line to the lithium battery to be tested and place it on the lower side of the limit plate 1247. After placement, close the cabinet door 22. After the transmission in the opposite direction of the above steps, as the cabinet door 22 is closed, the threaded rod 1224 will return the mobile mechanism 122 to its original position and cover the upper cover mechanism 121 and press the limit plate 1247 on the surface of the lithium battery, and then wait for the aging test; If an explosion occurs during the test, the aging cabinet 1, the protection mechanism 12 and the cabinet door 22 made of explosion-proof materials can withstand the explosion and guide the energy generated by the explosion to the clamping plate 1241, that is, the rear side of the protection mechanism 12, to prevent it from affecting the staff usually located at the front side of the aging cabinet 1. If no explosion occurs during the test, wait until the test is completed and then open the cabinet door 22 to remove the lithium battery.

[0033] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery aging test device, comprising an aging cabinet (1), characterized in that: The front end of the aging cabinet (1) is fixedly mounted with two symmetrically arranged cabinet door mechanisms (2); the top of the aging cabinet (1) is mounted with a control box (3); a plurality of support plates (11) are fixedly mounted inside the aging cabinet (1); a plurality of protection mechanisms (12) are arranged at the upper ends of the support plates (11); a partition plate (13) is arranged between two adjacent protection mechanisms (12); and a rubber sheet (14) is attached to the upper ends of the side surfaces of the partition plates (13); The protection mechanism (12) comprises an upper cover mechanism (121), a moving mechanism (122) arranged on the lower side of the upper cover mechanism (121), a test box (123) arranged on the left side of the upper cover mechanism (121), and a fixing mechanism (124) arranged on the upper surface of the moving mechanism (122); The upper cover mechanism (121) comprises a half gear (1211), a connecting plate (1213) fixedly mounted on the top of the half gear (1211), an upper cover plate (1214) arranged at the top of the connecting plate (1213), and a front cover plate (1215) arranged at the right end of the upper cover plate (1214); a fixed shaft (1212) is arranged inside the half gear (1211), and the fixed shaft (1212) is fixedly connected to the side surface of the partition plate (13); The moving mechanism (122) comprises a moving platform (1221), two racks (1223) fixedly connected to the left and right sides of the moving platform (1221), and a clamping handle (1222) fixedly connected to the front end of the racks (1223); the rack (1223) on the right side is internally threadedly connected to a threaded rod (1224); one end of the threaded rod (1224) is fixedly connected to a driven sprocket (1225); and the rack (1223) on the left side is internally slidably connected to an auxiliary rod (1226); The fixing mechanism (124) comprises a wire clamping plate (1241), two wire clamping grooves (1242) provided on both sides of the upper surface of the wire clamping plate (1241), and a fixing plate (1243) welded to the top of the front surface of the wire clamping plate (1241); a lifting rod (1245) is slidably connected inside the fixing plate (1243); an auxiliary rope (1244) is connected inside the lifting rod (1245); a limiting plate (1247) is fixedly connected to the lower end of the lifting rod (1245); a spring (1246) is provided between the upper surface of the limiting plate (1247) and the lower surface of the fixing plate (1243); and a rubber pad (1248) is provided on the lower surface of the limiting plate (1247).

2. A lithium battery aging test device as claimed in claim 1, characterized in that: The cabinet door mechanism (2) comprises a rotating frame (21) fixedly mounted on one side of the front surface of the aging cabinet (1), a rotating shaft (23) rotatably connected to the inside of the rotating frame (21), and a cabinet door (22) mounted on the rotating shaft (23); a plurality of worm wheels (24) are mounted on the side surface of the rotating shaft (23); a worm (25) is meshingly mounted on one side of the worm wheel (24); a transmission rod (27) is welded to the end of the worm (25); two support blocks (26) are rotatably connected to the outer surface of the transmission rod (27); the support blocks (26) are welded to the side surface of the aging cabinet (1); a driving sprocket (28) is mounted on the other end of the transmission rod (27); and a slot for placing the worm wheel (24) is provided on the side surface of the cabinet door (22).

3. A lithium battery aging test device as claimed in claim 2, characterized in that: A transmission sprocket fixing rod (41) is welded to the outer end of the threaded rod (1224) inside the moving mechanism (122) near one end of the driving sprocket (28), a transmission sprocket (4) is mounted on the transmission sprocket fixing rod (41), a transmission chain (5) is mounted between the transmission sprocket (4) and the driving sprocket (28), and a chain is connected between the driven sprockets (1225) of the two moving mechanisms (122) located on the same side and in the same row.

4. A lithium battery aging test device as claimed in claim 2, characterized in that: The aging cabinet (1) and its internal structure are both made of explosion-proof materials, and the height of the protection mechanism (12) is equal to half the height of the partition plate (13).

5. A lithium battery aging test device as claimed in claim 2, characterized in that: The auxiliary rope (1244) is an elastic rope, the top end of the auxiliary rope (1244) is fixedly connected to the lower surface of the upper cover plate (1214), and there is a gap between the lower surface of the upper cover plate (1214) and the upper surface of the wire clamping plate (1241).

6. A lithium battery aging test device as claimed in claim 2, characterized in that: The half gear (1211) is meshingly connected with the rack (1223), and the distance between the wire clamping grooves (1242) is equal to the width of the fixing plate (1243).

7. A lithium battery aging test device as claimed in claim 2, characterized in that: The aging cabinet (1) is divided into left and right sides with the two cabinet door mechanisms (2) as dividing points, and the threaded grooves on the threaded rods (1224) inside the two parts of the protection mechanisms (12) located on the left and right sides of the aging cabinet (1) are arranged in opposite directions.

8. A lithium battery aging test device as claimed in claim 2, characterized in that: A gap is left between the cabinet door (22) and the front surface of the aging cabinet (1), and the height of the empty groove opened on the side surface of the cabinet door (22) is greater than the thickness of the worm (25).

9. A lithium battery aging test device as claimed in claim 2, characterized in that: A pull handle is installed on the front surface of the cabinet door (22), and the cabinet door (22) is made of explosion-proof plastic.

10. A lithium battery aging test device as claimed in claim 2, characterized in that: The control box (3) is electrically connected to the test box (123), and the test line extending from the test box (123) is clipped into the inside of the clip slot (1242).

Images